地铁车站深基坑工程的监控量测和数值模拟_李磊.pdfVIP

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地铁车站深基坑工程的监控量测和数值模拟_李磊.pdf

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地铁车站深基坑工程的监控量测和数值模拟_李磊.pdf

32 1 Vol.32 Supp.1 2013 1 Chinese Journal of Rock Mechanics and Engineering Jan .2013 12 12 (1. 266590 2. 266590) ABAQUS TU 473 A 2013)1268408 MONITORING MEASUREMENT AND NUMERICAL SIMULATION FOR DEEP FOUNDATION PIT OF SUBWAY STATION LI Lei12 DUAN Baofu12 (1. School of Architecture and Civil EngineeringShandong University of Science and TechnologyQingdaoShandong266590 China 2. Shandong Provincial Key Laboratory of Civil Engineering Disaster Prevention and MitigationShandong University of Science and TechnologyQingdaoShandong266590China) Abstract Based on subway station deep foundation pit project in Nanchang cityin-situ monitoring data of the retaining structure deformation in the foundation pit are analyzed. The laws of the horizontal deformation of the retaining structure changing with excavation depth and time are studied and the influential effects of groundwater on project are introduced concisely. At the same timethe three-dimensional finite element model of the second excavation zone is established by ABAQUS to simulate excavation of deep foundation pit of subway station. Comparative analysis of calculation and monitoring results of the retaining structure shows thatbased on the characteristics of watery groundthe design of retaining structure of subway station deep foundation pit is safe and reasonable in Nanchang city. Composite structure of fender piles and support can control the soil deformation effectively in