Study on Multi-Level Safety Risk Assessment of Super 40 m Deep Foundation Pit Construction Adjacent to Subway
Publication: ICCREM 2022
ABSTRACT
The construction risk of the deep foundation pit adjacent to the subway is high. The accidents such as collapse occur frequently. The construction risk needs to be assessed before construction. This paper conducts a comprehensive risk assessment on the multi-level risk characteristics and risk indicators of the construction of an over 40 m deep foundation pit adjacent to the subway. The risk is divided into an indicator system, and the analytic hierarchy process is used to calculate the weight of the risk indicators to obtain the objective calculation results. In addition, this paper uses the membership function in fuzzy mathematics to establish risk levels and optimize the evaluation criteria of risk events. The results show that the comprehensive assessment risk value obtained by the optimized risk assessment method in this paper is 3.312, and the risk level is relatively high. According to the risk characteristics, safety measures for the construction process are proposed, which provides a reference for the risk assessment of deep foundation pit projects.
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REFERENCES
Deng, B. C., Zhou, D. J., Zhao, J. C., Yin, Y. L., and Li, X. Y. (2021). “Fuzzy synthetic evaluation of the critical success factors for the sustainability of public private partnership projects in China.” Sustainability, 13(5).
Ding, W. L. (2012). Deformation control research of pile retaining foundation pit in soil-rock stratum. Ocean University of China, Shandong, China. (in Chinese).
Hu, C. M., Liu, L., Wang, X. H., Jia, W. B., Lin, C., and Ma, Z. (2021). “Risk assessment for the 2-D deep foundation pit based on the fuzzy entropy-cloud theory.” Journal of Safety and Environment, 21(02), 521–528. (in Chinese).
Li, J. (2018). Research on Construction Risk Assessment Based on Fuzzy Fault Tree of Deep Foundation Pit of Subway Station. Xi’an University of Architecture and Technology, Shanxi, China, 1–70. (in Chinese).
Lin, D. S. (2019). Study on Stability of Dewatering and Excavation for Deep Foundation Pit of Subway Station in Water-Rich Soft Stratum. Beijing Jiaotong University, Beijing, China, 1–89 (in Chinese).
Liu, Z. (2018). The Improved Analytic Hierarchy Process Based on Gray Correlation Model and Pit. Beijing industry university, Beijing, China, 1–78. (in Chinese).
Mahdinia, M., Yarandi, M. S., Jafarinia, E., and Soltanzadeh, A. (2021). “Development of a new technique for safety risk assessment in construction projects based on Fuzzy analytic hierarchy process.” ASCE-ASME Journal of Risk and Uncertainty in Engineering Systems, Part A: Civil Engineering, 7(3).
Wang, F., Gao, Y. X., Zhou, X., Wei, S. D., Lv, Y., Wang, W., and Gao, C. L. (2019). “Empirical study on construction risk evaluation of deep foundation pit of Chengdu metro.” Building Structure, 49(S2), 920–925. (in Chinese).
Wang, Y. (2017). “Study on risk evaluation of expressway operation enterprises based on AHP-fuzzy evaluation.” Journal of Highway and Transportation Research and Development, 34(4), 154–158. (in Chinese).
Wu, G., Zhang, X., Li, N., and Wang, W. (2017). “Risk evaluation of surface subsidence caused by foundation excavation based on analytical hierarchy process.” Journal of Shaoxing University (Natural Science), 37(9), 24–29. (in Chinese).
Wu, Y. (2015). Research on Risk Dynamic Management of Building Excavation Engineering in Partnering Mode. Zhejiang University, Zhejiang, China, 1–75 (in Chinese).
Xue, Z. Y., Li, J. R., Chen, K., Ni, W., and Wu, G. (2013). “A comprehensive evaluation method for distribution network considering the coordination coefficient.” Power System Protection and Control, 41(12), 15–19. (in Chinese).
Zhang, B., Xia, S. Y., Zhao, Q. H., and Yang, Y. (2021). “Analysis and prediction of deep excavation construction accidents based on CART model.” Journal of Civil Engineering and Management, 38(3), 32–38+44. (in Chinese).
Zhang, L. W. (2020). “Foundation pit monitoring of main works in rail transit station.” Journal of Zhejiang University of Water Resources and Electric Power, 32(2), 62–65. (in Chinese).
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ICCREM 2022
Pages: 321 - 331
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Published online: Dec 15, 2022
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