Results 251 to 260 of about 4,387,415 (290)
BuildingsThis study demonstrates the design and field implementation of an innovative servo concrete bracing system in foundation pit excavation. The bracing system comprises concrete struts, revised purlins, and hydraulic jacks, and its field performance is ...
Xuehui Zhang, Luyuan Long
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Design of Shoring System for a Deep Foundation Pit Excavation
Underground Construction and Ground Movement, 2006This paper involves a foundation pit about 10.0 m in depth. The main problems in choosing a supporting system for excavation are difficult geological conditions and pipelines around the pit. Pile-anchor structures (bored piles and pre-stressed anchors) were used as the shoring system in the east, the south and a part of the west of the foundation pit ...
Jun Zhang, Zhiyin Yang, Xuqiang Li
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Excavation and Support of Deep Foundation Pit Finite Element Analysis
Advanced Materials Research, 2012In this paper, sun deep foundation works as background for the pit excavation process are charged to protect the structural deformation and earth pressure traits were studied, and the use of the GTS large-scale finite element software, the actual works in the excavation process in a step-by-stepthe displacement field, the internal force distribution of
Xiao Lin Dong, Dong Nan Han
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A Case History of the Excavation of Deep Foundation Pit Adjacent to Railway
Tunnel Management, Emerging Technologies, and Innovation, 2011Minzhi station foundation pit in Shenzhen subway is adjacent to Pingnan railway. There is obvious unsymmetrical loading above the pit, and the pit is affected by the dynamic load from train. Therefore, the impact of pit excavation on the railway and the safety of the pit itself must be paid close attention to. The main technical measures adopted in the
Hualin Zhang +2 more
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Centrifuge Study on Ultra-Deep Foundation Pit Excavation in Soft Ground
Deep Foundations and Geotechnical In Situ Testing, 2010In order to investigate the behaviors of the support systems and the associated ground deformations, centrifuge model test is adopted to simulate the excavation of ultra-deep foundation pit in soft ground. In this test, the geometrical scale is 1:120, and the soil layer thickness, excavation depth and retaining wall height are 60 cm, 31.6 cm and 54.2 ...
Qianwei Xu +5 more
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Three-Dimensional Numerical Analysis of Excavation and Support of Deep Foundation Pit
Advanced Materials Research, 2012Based on a project, a numerical analysis model was established by the finite difference program and the process of the deep excavation and support was simulated by computer, the distribution of the horizontal displacement and settlement of the top of slope of the slope soil were obtained. The simulation result was consistent with the test results.
Chang Zhi Zhu, Xing Lian Zheng
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The Finite Element Analysis of the Deep Foundation Pit Excavation and the Model Test
Advanced Materials Research, 2011The fracture theory of soil was a new developing problem in recent year. In this paper, the basic principle of fracture mechanics and the strength theory of soil were combined, and the soil-cracking strength theory was adopted to build a constitutive relation for cracked soils.
Chi Yan, Ri Song Qin, Hong Yue Sun
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Research on the Influence of Deep Foundation Pit Excavation on Neighboring Buildings
Advanced Materials Research, 2014With the development of society and economy, China's investment in construction projects is increasing, which requires the construction and management staff to improve their professional level, to develop a more scientific construction plan to ensure construction quality, and ultimately to the construction goal. Especially in deep foundation excavation
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The Review of Research on Deep Foundation Pit Excavation under Unloading Condition
Advanced Materials Research, 2014The calculation parameters of foundation pit excavation are usually obtained by the conventional triaxial test regardless of the unloading process, which leads to supporting mobile,soil rebound caused by excavation unloading, and unreasonable and dangerous design.
Jian Ye Wang, Li Yun Peng
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BuildingsExcavation in foundation pits can result in serious issues for nearby tunnel structures like deformation, differential settlement, and seepage damage, which profoundly impact project timelines and potentially endanger life and property safety. Therefore,
Cai Wu, Yani Lu, Jizhixian Liu
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