CASE STUDY ON GEOENVIRONMENTAL EFFECTS OF PRESS-IN PILES INSTALLATION
The press-in pile has become one the most frequently used piles in weak soil. However, there are some geoenvironmental problems in the course of installation. The press-in pile belongs to the soil-squeezing pile, and the soil surrounding the pile will be pressed during the process of construction, which leads to the excessive pore water pressure, and that may destroy the surrounding buildings, pipe lines and other civil works. Based on a practical case study, the geoenvironmental effects of press-in piles are investigated, and the excessive pore water pressure is measured day by day. Then, the spatial distribution and the time domain development tendency are summarized. The ratio of pore water pressure to the soil stress caused by the weight of upper layer soil may be used as the control criterion for the installation rate, and it may be set as 0.6 in order to avoid the geoenvironmental failure.
geoenvironment ezcessive pore water pressure press-in pile case study
Jian-Xue SONG Tong-He ZHOU Yuan-Cheng GUO
Civil Engineering School, Zhengzhou University, China Design Institute, Zhengzhou University, China
国际会议
International Symposium on Geoenvironmental Engineering(国际环境岩土工程研讨会
杭州
英文
926-929
2009-09-08（万方平台首次上网日期，不代表论文的发表时间）