Paper Title:
A Simplified Calculation Method for Spatial Effect in Large-Long-Deep Foundation Pit and its Analysis
  Abstract

According to the research status of construction spatial effects in large-long-deep foundation pit: mainly focus on numerical simulation, but theoretical research is not too many by now, a simplified method for calculating the construction spatial effects of large-long-deep foundation pit in cohesive soil was advanced. The soil layers around deep foundation pit were equal to cohesion-less isotropic soil mass by introducing the concept of equivalent internal friction angle. And then, by means of limit equilibrium analysis method combined with soil plasticity upper bound theory and associated flow rule, the spatial effects of two 3D failure modes: tension crack-shear and pure shear in deep foundation pit was studied concretely, and the corresponding formulas of spatial effects coefficient were put forward, also two examples were analyzed. The research results indicates that the method, which can complete by hand-calculation, avoids the defects of low efficiency, high cost and long period in numerical simulation, and the distribution characteristics and value size of spatial effects coefficient could be obtained directly from its calculation results, which can be used as guidance for the supporting structure, construction scheme design and the test points or sections choice in process of information monitoring.

  Info
Periodical
Advanced Materials Research (Volumes 243-249)
Edited by
Chaohe Chen, Yong Huang and Guangfan Li
Pages
2762-2770
DOI
10.4028/www.scientific.net/AMR.243-249.2762
Citation
M. F. Lei, L. M. Peng, C. H. Shi, Y. L. Zhang, W. H. Li, "A Simplified Calculation Method for Spatial Effect in Large-Long-Deep Foundation Pit and its Analysis", Advanced Materials Research, Vols. 243-249, pp. 2762-2770, 2011
Online since
May 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Hong Mei Gao, Yan Lin Zhao, Ji Tao Zhao
Abstract:Consideration of influence of the groundwater seepage and supporting measures to deep-foundation pit,the deformation characteristics of...
2477
Authors: Jiang Shu Ding, Yao Qiang Xian, Tian Jun Liu
Abstract:Combined with one foundation pit engineering in Guangzhou, the method was adopted in this paper, by which the in-situ test and finite element...
2358
Authors: Chong Fu Wu, Chang Hong Li
Chapter 30: Automation, Mechatronics and Robotics
Abstract:Through the field test on the laboratory building foundation pit engineering of Northeastern University at Qinhuangdao, the distribution and...
7713
Authors: Ying Liao, Haili Xia, Xu Liu, Can Wang
Chapter 1: Geotechnical Engineering
Abstract:The major instable modes of the gravity retaining and protecting structure for foundation pit are overturning and slipping. Because of the...
261
Authors: Chun Yuan Liu, Wei Wei Cao, Yu Liu
Chapter 1: Geological and Geotechnical Engineering
Abstract:Based on the impact of deep foundation pit excavation to the adjacent history style construction, FLAC3D was adopted to establish the...
113