Hasil untuk "Engineering geology. Rock mechanics. Soil mechanics. Underground construction"

Saibal Ghosh, Gourav Mondal, Shreya Chakraborty et al.

Four different soil types including red, alluvial, calcareous, and black soils along with rice cultivated on them were collected from various parts of India and analyzed for potassium dynamics in the soil plant continuum. Soil potassium (K) dynamics were studied under submerged and non-submerged conditions, and potassium content was analyzed in rice roots, shoots, and grains, along with other soil properties. Red (S1: 5.9) and alluvial (S5: 5.16) soils were moderately acidic, while black (S8: 8.01) and calcareous (S7: 8.1) soils were alkaline. Black soil (S8) had the highest cation exchange capacity (CEC: 31.25 cmol (p+)/kg) and clay content (41.2%), while alluvial soil had the most organic carbon (S5: 1.74%). Submerged conditions enhanced potassium availability, with red soil showing the highest levels of water-soluble K (WsK), exchangeable K (ExK), and non-exchangeable K (NEK), particularly Step-K and constant rate K (CR-K) forms. Rice potassium content was highest in grains, followed by shoots and roots, with red soil containing the most available potassium. A strong correlation was found between soil potassium forms and rice plant potassium uptake. Sensitivity analysis indicated that WsK and ExK from non-submerged soil to be the most favorable forms for potassium uptake, especially in the rice roots and grains. Machine learning models, particularly Random Forest, accurately predicted potassium availability and uptake, highlighting their potential in optimizing soil fertility and advancing precision agriculture for better crop yields and soil health.

Wenhao Wang, Xiang He, Shifan Wu et al.

Microbial induced carbonate precipitation (MICP) and enzyme induced carbonate precipitation (EICP) processes can be affected by many factors. The influence of magnesium on the MICP and EICP based soil improvement was studied in this paper across different scales ranging from micro, pore to macro. Results obtained from microfluidic chip tests indicate that the presence of a little amount of Mg ions in the cementation solution can reduce the bacterial cell coagulation and promote a more uniform distribution of crystals in the reaction channel. Aqueous phase tests were performed by controlling the concentration of calcium (Ca) to magnesium (Mg) ratio to vary from 1.00 : 0 to 0 : 1.00. The results show that magnesium could delay the precipitation process and increase the quantity of the precipitates. As the magnesium content increases, the crystal morphology of precipitates changes from calcite to Mg-calcite, vaterite, rosette and nesquehonite. Cementation effect in the Ca-rich group is superior to that in the Mg-rich group. In terms of unconfined compressive strength of the treated sand, the contribution of Mg is much less significant in Mg-rich groups. The performance of the sand treated with both MICP and EICP based methods under the presence of Mg was evaluated and discussed. All samples exhibited strength improvement after biotreatments. Among all the four groups, the EICP 1-phase group with Ca: Mg of 0.90 : 0.10 and 0.75 : 0.25 exhibited the largest strengths of 4.5 MPa and 4.7 MPa, respectively.

Hongru Li, Manchao He, Yingming Xiao et al.

In this study, based on the rockburst disaster mechanism of excess energy ΔE > 0, true triaxial transient unloading strainburst (including instantaneous strainburst and delayed strainburst) experiments were performed on granite specimens at different maximum principal stress levels. The experimental results were then analyzed, with the strainburst characteristics and acoustic emission (AE) responses of the granite specimens being examined. The excess energy ΔE was derived through a comparison with the results of conventional biaxial compression tests. The following beneficial conclusions were drawn. The mechanical strength of delayed strainburst specimens initially increases and then decreases with the rise of the unloading stress level. In contrast, the mechanical strength of instantaneous strainburst specimens is higher than that of delayed ones, increasing with the unloading stress level. In terms of fragment ejection velocity and scale, the rockburst intensity of a specimen is positively correlated with its mechanical strength. A pronounced linear relationship exists between the excess energy ΔE and the fragment ejection velocity (as well as weight), indicating that ΔE is intimately linked to the kinetic energy of rockbursts. Rockbursts lead to the formation of burst pits and typical V-shaped damage zones near the free face of the specimens, within which tensile cracks dominate. Additionally, the distribution of AE AF-RA values indicates that the proportion of tensile cracks increases with the rise of unloading stress level, suggesting that transient unloading under high stress levels significantly promotes tensile fracture. It is anticipated that this study will provide further elucidation on the mechanism of rockburst kinetic energy generation, thereby establishing a foundation for the design of rockburst support measures in engineering applications.

Yuri Chirkunov, Yuri Skolubovich, Mihail Chirkunov et al.

The generalized axisymmetric model of fluid motion in a porous medium in the presence of a non-stationary external source or absorption is studied by methods of group (symmetry) analysis of differential equations. All its invariant submodels of rank 1 are studied. They are specified by invariant solutions of rank 1 of the equation of the original model. These solutions are obtained either explicitly, or their search is reduced to solving systems of ordinary differential equations of the first order. For explicit solutions at specific values of the parameters included in their expressions, graphs of the pressure distribution in the porous medium are constructed. The remaining solutions are used to study physically meaningful boundary value problems for which, at the initial moment of time, the pressure and either the rate of its change along the axis of symmetry or the radial rate of its change are specified at a fixed point of the medium. These boundary value problems are solved numerically for some specific values of the parameters included in them. Graphs of the functions determining these solutions are obtained. The conducted research is relevant in many areas of applied science and technology: filtration, soil mechanics, rock mechanics, oil field engineering, construction engineering, petroleum geology, biology and biophysics, materials science.

Mahdieh Azimi, Mehdi Mirzababaei, Amin Soltani et al.

Min-Seong Kim, Sean Seungwon Lee

The long and large diameter uncharged hole boring (LLB) method is a cut blasting method that minimizes blast-induced vibrations by creating long and large diameter uncharged holes at the excavation face of tunnels prior to tunnel excavation. Drilling in this method typically uses a 50 m long with a 382 mm diameter hammer bit in the horizontal direction at the tunnel face. However, the significant weight and uni-directional rotation of the rod head, as well as variables such as geological characteristics, machine conditions, and inexperienced operators result in significant deviation from the target borehole alignment that hinders the vibration-dampening effect of the uncharged holes. Furthermore, since there is no method to verify the alignment of the boreholes until main tunnel construction, borehole misalignment is often not discovered until weeks after construction, which requires tunnel construction to cease until the equipment can be remobilized and an additional borehole be created, causing significant delays and increased costs for the entire tunnel project. In this study, the borehole alignment tracking and ground exploration system (BGS) is developed to predict and monitor the quality and alignment of boreholes for cut blasting methods such as the LLB methods immediately after boring. The BGS was subsequently tested at a subway construction site to evaluate its performance in the field. The measurements yielded by the BGS were compared with manually measured boring positions at every 5 m along the borehole. Although the BGS showed a maximum deviation of approximately 12% at a local point where the hole surface was relatively rough, the accuracy for the final boring position was approximately 97%, demonstrating excellent precision of the alignment tracking system. The BGS demonstrates excellent performance in predicting ground conditions and the boring quality of a cut hole immediately after drilling, and shows promise in various other applications for monitoring borehole alignment.

N. Jiang, Kechen Lv, Zhiyou Gao et al.

Various fractures and holes in the natural rock mass affected the mechanical properties of the rock mass and the safety construction of engineering. In this study, we investigated the mechanical properties of a single fracture-hole rock specimen using particle flow code 2D (PFC2D) numerical simulation software and through laboratory tests. We analysed the failure behaviours and mechanical properties of the rock specimen with a single fracture-hole specimen under different fracture angles. The failure modes of single fractured rock samples with different fracture angles were revealed. The fracture propagation and stress evolution of the rock specimen with a single fracture-hole under different fracture angles were investigated. The experimental results shown that the peak strength, peak strain, elastic modulus, initial fracture stress, and damage stress of the single fracture-hole rock specimen with different fracture angles were significantly less than those of the intact rock specimen. Moreover, fracture hole defects accelerated the generation of fractures and promote the failure of the rock specimen. The failure modes were divided into Y, inverted Y, and V types. Before the rock specimen fractures, the stress concentration area was mainly distributed at both ends of the fracture. The stress concentration area at both ends of the fracture gradually decreased, and the stress concentration area near the hole gradually increased as the fracture angle increased. By experiments, the acoustic emission of the model had gone through three stages: initial, steady growth, and rapid decline. The size of the inclination angle affected the number of acoustic emission hits and the generation of acoustic emission signals. Failure behaviours of the rock specimen with a single fracture-hole were systematically investigated, which could promoted the development of fracture rock mechanics and improved the understanding of instability failure mechanism in rock engineering, such as nuclear wasted treatment engineering and deep underground engineering.

Yan Han, Yating Hu, Qian Wang et al.

In recent years, environmental problems have been a hot topic of social concern, such as heavy metal pollution in the atmosphere, soil and sediment, which are closely related to our life.To solve the heavy metal pollution in environment, the key is to determine the source of pollution.With the rapid development of stable isotope tracer technology, further achievements have been made in the study of the traceability of heavy metal pollution. Meanwhile, isotope tracer technology has become an important means in the traceability of heavy metal pollution.To better understand the isotope tracer technology application in environmental pollution sourcing, having the copper isotope as an example, the basic properties of copper, isotope fractionation in the geochemical process, processing and purification different types of samples, isotope analyze technique, tracer technique, the meta model has carried on the brief summary.This paper further describes the end members(natural input source and artificial input source), pollution path and pollution degreeof river pollution, smelter pollution and atmospheric particulate pollution. Finally, the application of isotope tracer is summarized and prospected.

Mansour Jahantigh, Moien Jahantigh, Khodadad Dhemardhe et al.

Introduction Today, water security is one of the important limitations of development, especially in dry and desert areas. Because these areas not only have low rainfall, but also this low rainfall is not properly distributed. Despite the increase in irrigation efficiency in some agricultural methods, the limitation of freshwater resources in some areas makes it necessary to use salt water in agriculture. However, the use of these water sources has negative effects on the soil and the environment. So the salinity of soil and irrigation water reduces crop yield and puts soil resources at serious risk. It is possible to increase the crop yield and control soil erosion by using the appropriate irrigation method. The problem of salinity in plants is due to the accumulation of excessive amounts of sodium chloride, which is widely spread in coastal areas, soils of dry areas, and fertile lands. Studies have shown that the use of saline water, especially in conditions of equal fertilization between treatments, often reduces the absorption of important nutrients such as nitrogen due to the existence of a significant relationship between the absorption of water and nutrients. Research in the north of Golestan province showed that salinity causes a significant decrease in plant biomass. The effect of salinity stress on the accumulation of sodium, potassium, and chlorine in the plant was significant and the highest amount of ions was accumulated in the leaves. The plant's root system is selective in absorbing and transferring sodium to its aerial parts.   Materials and Methods To do this research, first, by selecting 36 experimental units, holes with a diameter of 50 cm and a depth of 60 cm were dug in the center of each one, and then the treatments were prepared. This research is in the form of treatments consisting of irrigation factor (clay and drip irrigation method), salinity level (salinity up to 1200, salinity up to 2200, and salinity up to 3200 µmhos cm-2), and plant (Rose and Hibiscus sabdariffa) in three repetitions and it was done factorial randomized complete blocks design. Three water sources each with a capacity of 200 liters were placed at a height of less than two meters from the ground. Rose plant was prepared in the form of potted seedlings and Hibiscus sabdariffa seeds were planted in the greenhouse and after about two weeks in March, it was transferred to the field. The growth height of the plants, as well as the crown, the diameter of the plant stem, and the number of their branches in the growing season were measured. Also, three soil samples were collected and their characteristics of salinity, acidity, and texture were measured. In order to analyze the data, the statistical method of analysis of variance (ANOVA) and the least significant difference (LSD) test were used to compare the average of the studied indicators using MSTAT-C software and SPSS software.   Results and Discussion The results of variance analysis of some growth traits of the studied species showed that seedling height and stem diameter were affected by different levels of salinity and the values ​​of this plant characteristic showed a statistically significant difference. The reason for the decrease in plant growth in a plant that is irrigated with more salinity is that the presence of salt in the soil exceeds the tolerance threshold of the plant, and as a result, the accumulation of excess salt in the root zone is a limiting factor for plant growth. According to the results of the effect of irrigation methods, as well as the interaction effect of salinity and irrigation method on the aforementioned indicators, there was no statistically significant difference. The interaction effect of plant and water salinity levels on the values ​​of these variables was significant. The comparison of the average data showed that the height of the studied species was significantly increased by using the clay irrigation method. The maximum diameter of the stem was also measured in the clay irrigation method, which was associated with an increase of 1.7\% compared to the drip irrigation method. Also, the results show that the highest values ​​of the studied variables are related to the rose flower plant, which is 1.7 and 3 times more than the sour tea plant, respectively. Clay irrigation causes water to be transferred to the root area of ​​the plant, which improves the performance and growth of the plant by providing the required moisture around the root. In other words, the way to distribution soil moisture in clay irrigation takes place in the form of percolation and uniformly around the root of the plant, which causes the moisture to be placed directly around the root area and thus affects the growth of the plant. In addition, the canopy data and the number of branches showed that there is no significant difference between them.   Conclusion This research tested the effect of different levels of water salinity and clay and drip irrigation on the establishment of plants in the Sistan plain, considering the existence of a water shortage crisis in the region, in order to use saline water on two plants, rose and Hibiscus sabdariffa. The results showed that clay irrigation performance was better than drip irrigation at all salinity levels. Because in the drip irrigation method, with the occurrence of drought stress, it reduces plant growth compared to the clay irrigation method. In addition, in the drip irrigation method, water is placed on the soil surface and deep penetration is limited, and as a result, the increase in humidity in the subsurface layers is less. In the clay irrigation method, due to deep penetration and uniform distribution of moisture in the soil profile, the amount of moisture stored in the soil increases.

Xushan Shi, Hongyuan Kang, Huanying Pan et al.

Objective To study the transport of pollutants in typical hydraulic sedimentary units such as river terraces or alluvial fans, solute transport experiments were carried out in an indoor seepage tank. Methods NaNO3 solution were introduced into the tank to simulate the point-pollution in hydraulic sediments. By measuring the concentration of the main ion components at different positions over time, the migration law of pollutants and the ion exchange process are analysed. Results The results show that NO32- is a conservative ion, and its breakthrough curve (BTC) is sharp and thin. The transport behaviour of Na+ is significantly affected by cation exchange, its concentration rising sharply and decreasing slowly. Cation exchange reduces the dispersion of Na+, and the effect becomes more obvious as the distance increases. In the early stage, the high concentration of Na+ can exchange Ca2+, Mg2+, and K+ in the sand layer. Cation exchange reduces the Na+ dispersion concentration. Due to the adsorption by sediment, the concentrations of Ca2+, Mg2+, and K+ will be lower in the later stage. The change in the reaction direction of cation exchange makes the BTCs of Na+ wider and gentler under the action of advective dispersion, and the phenomenon of "tailing" is more obvious. The water chemistry types in different areas in the seepage sank have different properties in space. Conclusion The research results have guiding significance for preventing and controlling groundwater pollution in hydraulic sedimentary units.

SUN De'an

The ground surface soils are almost unsaturated, especially in arid and semi-arid areas, and the engineering problems of unsaturated soils cannot be properly explained and dealt with by the saturated soil mechanics and the relevant experimental means. First the unsaturated degrees of soils are described by low and high suctions, respectively. By reviewing the theory of saturated soil mechanics, the current commonly accepted theories of unsaturated soil mechanics are introduced. Then, the testing methods for measuring the water retention and mechanical behaviors of unsaturated soils in the low suction range are presented. The focus is on the precautions and countermeasures required by the use of ceramic plates and the volume measurement method for unsaturated soils by using the triaxial instruments. The results of the suction-controlled compression, triaxial shear and true triaxial tests are used to illustrate the typical mechanical behaviors of unsaturated soils. After analyzing the coupling characteristics of hydraulic and mechanical behaviors and the factors directly influencing the water-retention curves based on the test results, a coupling model for describing the hydraulic and mechanical behaviors of unsaturated soils is established by the using the elastic-plastic method, and is verified by suction-controlled or measured isotropic compression and triaxial test results. Subsequently, the stress-strain relationships of four typical soils over a wide suction range are given by means of the suction-controlled triaxial test method developed by the author's group in the high suction range. Finally, the measured strength data of two soils over a wide suction range are used to analyze the applicability of various equations for calculating the strength of unsaturated soils.

Xiaodong Fu, Yongtao Yang, Min Wang et al.

State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan, China, School of Engineering Science, University of Chinese Academy of Sciences, Beijing, China, Fluid Dynamics and Solid Mechanics Group, Theoretical Division, Los Alamos National Laboratory, Los Alamos, NM, United States, State Key Laboratory of Hydraulics and Mountain River Engineering, College of Water Resource and Hydropower, Sichuan University, Chengdu, China

Yulu Chen, Zhilong Chen, Dongjun Guo et al.

With the expansion of cities and the emergence of various urban problems, urban underground space has been developed as a solution. In China’s urban transition context, there is a need for the development of underground space in urban built-up areas. In this case-study of the central city of Nanjing, we used spatial analysis and statistical methods to characterize the underground space use of urban built-up areas from a dynamic spatiotemporal perspective. We first analyzed the relationship between the population distribution and the underground space use of the central city of Nanjing based on a Baidu heat map, which can reflect the real-time population distribution, and then, we explored the spatiotemporal characteristics and spatial structure of the underground space use in urban built-up areas. The analysis results provide a reference for planning to improve and optimize the layout of underground space in the central city of Nanjing and, more generally, for the stock-type planning of underground space in urban built-up areas.

Joseph Toth, Ramin Motamed, Anna Panorska

In this study, the side capacity of drilled shaft foundations is estimated from partially-mobilized load–displacement field data using a new method in the extrapolation of load–displacement response. A dataset of 138 bi-directional load tests is used to evaluate the degree of mobilization of unit side resistance. A total of 612 unit side-resistance curves obtained from measured strain gauge recordings are utilized in this study. The proposed extrapolation approach is based on a new technique, the Double Tangent method, characterizing the extent of mobilization for each unit side-resistance curve. Roughly, 12% of the dataset exhibits a fully-mobilized load–displacement response, with the remainder exhibiting varying degrees of a partially-mobilized response. Fully-mobilized records are further characterized using the Double Tangent method over different ranges of mobilization, resulting in four regression models based on predominant soil types. Each model is assessed statistically, and a global regression model is found suitable to predict maximum unit side resistance. The global model is further validated using two independent load test datasets, comparing measured values of unit side resistance against predicted values. The model is then used to predict maximum unit side resistance for all partially-mobilized data within the dataset, and the results are compared to two extrapolation techniques currently used in practice. The corresponding resistance-displacement response is extrapolated using a proposed asymptotic curve-fitting function for side resistance, and an example extrapolation is illustrated to showcase how the proposed method can be used in engineering practice.

CAI Guang-hua, ZHOU Yi-fan, POON Chi Sun et al.

The treatment of marine sediment has been a global-scale challenge. Portland cement (PC) is a widely-used binder in the conventional stabilization/solidification method. The use of PC can cause serious environmental pollution. In this context, the environment-friendly binder (blend of quicklime and ground granulated blast-furnace slag (GGBS)) has been adopted to replace PC in the soil remediation field. This study investigated the quicklime-activated GGBS for the stabilization of marine sediment at high water content. The physicochemical and unconfined compression tests were performed to analyze the physical, chemical, and strength characteristics of the quicklime-GGBS stabilized sediments. The results were compared with that of PC-stabilized sediment. As compared to the PC-stabilized sediment, the quicklime-GGBS stabilized sediment would generate larger volume shrinkage, lower water content, and slightly higher density. With reducing quicklime proportion and continuing curing time, the pH of the quicklime-GGBS stabilized sediment gradually decreases. The unconfined compressive strength of the lime-GGBS stabilized sediment shows a trend of first increasing (quicklime proportion of 0.05–0.15) and then decreasing (0.15–0.3) and finally increasing again (0.3–0.4). The maximum strengths appear at the lime-binder ratio of 0.15 and 0.4. The maximum strength at the quicklime-binder ratio of 0.15 is 1.4 times the same as the corresponding PC-stabilized sediment under the same condition. The findings indicate that the combination of GGBS with little quicklime has the potential to replace PC for stabilizing natural sediment at high water content.

J. Morgenroth, M. Perras, U. Khan

Yiran Yang, Yanzhong Li, Jiaojiao Pan et al.

The hazards induced by stratified rock mass creep are still one of the major problems that threaten the safety of underground engineering. This paper takes safe construction of underground roadway in Urumqi mining area as the research background. In this study, we mainly adopted rock mechanics experiments to accomplish the research on creep behavior and crack evolution of stratified structural sandstone. Creep deformation characteristics of stratified structural sandstone under different load were revealed; also, we analyzed the reason why a part of rock samples failed but others were not under the same load. Creep behavior and crack evolution of rock samples without stratified structure have significant randomness. The crack evolution and failure characteristics of stratified structural rock samples were mainly manifested as failure along and cutting through structural plane and their combined forms. Creep strain, creep duration, and creep rate of rock samples with stratified structure had a nonlinear relationship with applied load, such as exponential function or logarithmic function. Understanding the evolutionary relationship between the above parameters and load provides a basis for obtaining the creep behavior of stratified rock mass under different load conditions.

Liang Zhang, Yu Li, Shengwen Yang et al.

Block LX is a tight sandstone gas reservoir with low porosity and low permeability, and there are the problems of a sharp decline in production and a poor utilization degree of superimposed reserves in the longitudinal gas bearing sand body within a few years after the initial fracturing, which leads to the difficulty of gas field production replacement under the condition of high comprehensive decline rate. By analysing the effect of reservoir characteristics and rock mechanical properties on volumetric fracturing, combined with geological logging data and rock mechanics experimental data of tight sandstone reservoir in Block LX, the paper tries to study the adaptive effect of volumetric fracturing technology in Block LX. The adaptability of volumetric fracturing is evaluated by software simulation of fracturing effect to determine the optimal fracturing construction parameters before the volumetric fracturing gas test is carried out on three wells. The gas test results show that the daily gas production is increased by more than 46.01% compared with that before volumetric fracturing, and the fracturing effect is good. Therefore, it is feasible to use volumetric fracturing technology to overcome the difficulty of low permeability and low gap in Block LX to improve gas production.

Baoping Lu, Jun Zhou, T. Jiang et al.

Deep carbonate reservoir heterogeneity is serious, fault and fracture development, geology characteristic upper and lower horizontal well is uncertainty. The fracturing design scheme applicability is not strong based on the well logging data of guide well or adjoining well. Therefore, it is necessary to combine the engineering geology, construction technology and the optimized design of the scheme organically to solve the above problems. Based on the interpretation model of logging data, this paper discusses the prediction method of rock mechanics parameters combined with logging and seismic data. The plane distribution law of shear wave and rock density was obtained by the seismic inversion algorithm, and the plane law obtained by 3D seismic inversion was used as the prediction constraint conditions to carry out 3D geological modeling for the rock mechanics parameter field in SHB block, and on this basis, the local in-situ stress field simulation was figured out. According to the established geomechanical model, the section was cut along the direction of the horizontal well bore, and important information such as reservoir development status and geomechanical parameter distribution of the upper and lower sections of the horizontal well bore were analysed. A full three-dimensional model of asymmetric fractures was established. The research work in this paper is of great significance to improve the success rate of stage fracturing of ultra-deep horizontal well and the economic development of single well.

Zhi Lin, Xiangfu Chen, Hongyun Yang et al.

The construction of urban underground cross-interchange transfer subway stations often encounters the difficulties of shallow-buried, different surrounding rock, large spans and heights, congested road traffic, and surrounding buildings sensitive to the construction sequence. Therefore, there is a need for an underground project that controls the stability of underground space and ground subsidence. Based on the construction difficulties of a certain station (the maximum excavation area over 760 m2), this paper conducts a comprehensive selection design of the structure, construction mechanics response, and control technology of this type of interchange station structure and construction excavation. First of all, based on the design experience of large-scale underground transfer transportation engineering and taking full consideration of the stratum conditions, an “arch-wall” cross transfer structure method is proposed. The refined numerical analysis shows that the structure can fully utilize the stratum conditions to reduce the ground surface settlement. Then, in view of the stability of surrounding rock during the construction of a large section, based on the traditional large section excavation method, a construction method of “cross rock beam + heading method” was proposed. In order to verify the effect of the construction method, the three-dimensional detailed numerical model was used to simulate the construction conditions, and the mechanical response characteristics and displacement changes of surrounding rock under each excavation step are explored. Simultaneous interpreting with the traditional large section excavation method, the results show that the new method has advantages in controlling the stability of the surrounding rock. Meanwhile, in order to ensure the safe construction of the project, the self-developed multifunctional engineering test system for traffic tunnels is used to carry out a large-scale physical model experiment to simulate the entire process of the “arch-wall” cross transfer structure construction response characteristics. By analyzing the data of measuring points, the results show that the structure form and the excavation method cause the ground surface settlement, stress, and structural forces meet the requirements for safe construction. Finally, the station can be safely constructed under the new structure form and construction method. Therefore, the structure form and method proposed in this paper can be adapted to the large-scale underground structure under construction in complex environments.