Investigation of Temperature Shrinkage effect on Deformation of
Soft Soil Deep Foundation Pit and Its Prediction
YAN Xiao-feng1, YANG Chun-shan2, LI Ya-dong3
1.Guangdong Zhonggong Architectural Design institute Co., Ltd., 510034, Guangzhou, China; 2.Guangzhou Municipal
Engineering Design & Research Institute, 510060, Guangzhou, China; 3.School of Civil Engineering, Guangzhou
University, 510006, Guangzhou, China
Abstract：
Based on a foundation pit project in Zhuhai District of Guangzhou, this paper studied the variation law of foundation pit supporting structure displacement caused by temperature contraction and predicted the influence of further temperature contraction on structural mechanical behavior of deep foundation pit. It was found that temperature fluctuation has much influence on the deformation of foundation pit supporting structure and causes obvious increase of internal force of enclosure structure; the influence of temperature contraction on diaphragm wall increases from top to bottom of the foundation pit, while the maximum disturbance point is determined by the position of internal support. Based on stress-temperature field coupling calculation, this paper proposed standards for foundation pit deformation control and suggestions for temperature contraction control.
YAN Xiao-feng1,YANG Chun-shan2,LI Ya-dong3. Investigation of Temperature Shrinkage effect on Deformation of
Soft Soil Deep Foundation Pit and Its Prediction[J]. Architecture Technology, 2017, 48(4): 357-360.
