Mechanical performance of a prefabricated subway station structure constructed by twin closely-spaced rectangular pipe-jacking boxes

Wang, Lei; Chen, Xiangsheng; Su, Dong; Liu, Shuya; Liu, Xian; Jiang, Simin; Gao, Hao; Yang, Wensheng

doi:10.1016/j.tust.2023.105062

Cited by 23 publications

(5 citation statements)

References 34 publications

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“…The previous research has discussed the ground deformation brought on by the pipe jacking construction method in soft soil areas [22], but there are still some shortcomings, such as not taking into account how soft soil peculiarities affect ground deformation and the facts that existing model experimental studies rarely take the overlying load into account and the research scope is primarily restricted to vertical deformation [23], without describing and studying other issues brought on by pipe jacking (such as surface cracks, etc.) [24]. It is shown that the surface deformation trough caused by a single tunnel fits well with the Peck curve, where the maximum deformation S max and the horizontal distance i to the inflection point define the shape of the curve [25,26], and the soil volume loss V s and the tunnel volume loss V t describe the magnitude of the ground motion (Figure 1 shows the details of the defined parameters S max , i, V t , and V s ).…”

Section: Introductionmentioning

confidence: 79%

Ground Surface Deformation Caused by Pipe Jacking Construction in a Soft Soil Area: An Experiment-Based Study

Tang

Zhou

et al. 2023

Buildings

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Soft soil has the characteristics of high compressibility, large void ratio, and strong structure. Therefore, it is more likely to cause surface subsidence or even surface cracking and collapse when laying oil and gas pipelines in soft soil areas through the pipe jacking method. In this study, test soil was pressurized using a flexible loading bladder, and variable formation losses brought on by pipe jacking were mimicked by varying the loading bladder’s water injection level. The surface deformation brought on by pipe jacking construction is related to the four parameters of stratum loss rate, overburden load, soil disturbance, soil tension fissures, and horizontal deformation. The findings demonstrate that the surface deformation brought on by the excavation gradually reduces and starts to stabilize after the thickness of the overlying soil layer on the pipe jacking surpasses 1.5 times the diameter of the pipe jacking. The constructed settling tank is broader the deeper the jacking pipe is submerged. Further ground surface settling will be exacerbated by the weight above the jacking pipe. The maximum ground surface deformation value will decrease with an increase in the overlying load when the overlying load is high (0.018 MPa).

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Section: Introductionmentioning

confidence: 79%

Ground Surface Deformation Caused by Pipe Jacking Construction in a Soft Soil Area: An Experiment-Based Study

Tang

Zhou

et al. 2023

Buildings

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“…He published articles on BIM-IoT integration and using advanced materials for sustainable construction [79,[85][86][87][88]. Liu X. has been working on sustainable construction since 2010 and has published five articles in this research area [89][90][91][92][93]. He received the highest number of citations in 2022 for his publication on digital twin technologies for sustainable smart city design [93].…”

Section: Leading Researchersmentioning

confidence: 99%

Engineering and Design for Sustainable Construction: A Bibliometric Analysis of Current Status and Future Trends

Alam Bhuiyan,

Hammad

2024

Sustainability

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The purpose of this study is to investigate the state of engineering and design research for sustainable construction. It aims to report the current status and future trends within this dynamic field, combining econometric and content analysis using the Bibliometrix R encapsulation tool. This study reviewed academic journals using bibliometric analysis. We selected articles by searching the Scopus database. Primarily relevant articles were identified and screened. The dataset comprised a substantial compilation of 731 journal articles from 278 sources published between January 2000 and June 2023, which formed the basis of the in-depth analysis. The importance of sustainable construction is gradually gaining more attention, and engineering and design are the significant phases of construction. This research identifies that sustainable construction is nothing in isolation; instead, it warrants the holistic integration of multiple factors, as illustrated in the Sankey diagram. Recycling, durability, life cycle assessment, innovative materials, and energy efficiency have emerged as central themes, reflecting global concern to enhance sustainability, reduce environmental impacts, and optimize resource utilization. This study is a valuable resource for researchers, practitioners, and policymakers, offering guidelines for collaborative efforts towards sustainable development. This paper paves the way for interdisciplinary cooperation and strategic alignment among diverse stakeholders, promoting innovative approaches to sustainable construction.

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“…The contact surfaces of the structural nodes of the prefabricated subway station are shown in Figure 6. The normal stiffness kn and tangential stiffness ks of the contact surface are calculated by Equation (1).…”

Section: Contact Surface Settingsmentioning

confidence: 99%

“…Prefabricated subway station structure (PSSS) construction technology is an important way to realize the industrialization of large-scale urban underground engineering construction and construction mechanization, and it is an important initiative to promote the realization of the Chinese-style modernization of the green, intelligent, and low-carbon building scene. It is favorable for accelerating the construction speed, ensuring the quality of the project, reducing environmental pollution, reducing the cost of the project, and solving the problem of winter construction in the cold region [1]. Yang Xiuren [2] firstly proposed the construction concept of using full prefabricated technology to build open-cut subway stations and successfully put it into practice in some stations of the Changchun Metro Line 2.…”

Section: Introductionmentioning

confidence: 99%

Seismic Response Comparisons of Prefabricated and Cast In Situ Subway Station Structures in Liquefiable Site

An,

Liu,

Zhang

et al. 2023

Buildings

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Based on the engineering practice of the first prefabricated subway station (Shuangfeng Station) in Changchun, China, the applicability of prefabricated subway station structures (PSSSs) in liquefiable sites in seismically defended areas is investigated. In this paper, the finite difference software FLAC3D 5.0 is used to carry out the seismic response analysis of the PSSS in liquefiable ground, and the calculation results of the PSSS are compared with those of the same type of cast-in-place subway station condition. The results show that the trend of foundation excess pore pressure ratio (EPPR) in the PSSS condition is similar to that of the cast-in-place condition. For different ground vibration inputs, there is not much difference between the PSSS and the cast-in-place structure on the pore pressure (PP) of the surrounding liquefiable soil. The acceleration response of the PSSS is slightly smaller than that of the cast-in-place structure, and it has a better ability to adapt to ground deformation. The deformation of the upper part of the PSSS is slightly larger than that of the lower part, which is an important part of its deformation control, and the middle part is the key part of its strength control due to the presence of the center plate, which results in a significant increase in stiffness and stress. The flexible connection of the PSSS is easier to adapt to a larger vertical deformation than rigid connection, and its ability to resist overturning is better. Under the premise of ensuring static waterproofing, the PSSS can be constructed in liquefiable sites in earthquake-proof areas.

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Mechanical performance of a prefabricated subway station structure constructed by twin closely-spaced rectangular pipe-jacking boxes

Cited by 23 publications

References 34 publications

Ground Surface Deformation Caused by Pipe Jacking Construction in a Soft Soil Area: An Experiment-Based Study

Ground Surface Deformation Caused by Pipe Jacking Construction in a Soft Soil Area: An Experiment-Based Study

Engineering and Design for Sustainable Construction: A Bibliometric Analysis of Current Status and Future Trends

Seismic Response Comparisons of Prefabricated and Cast In Situ Subway Station Structures in Liquefiable Site

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