单桩施工引起的桩周土地表隆起  

Upheaval of Earth Surface around a Pile Caused by Its Installation

作　　者：唐世栋[1] 吕建春[1] 

机构地区：[1]同济大学地下建筑与工程系,上海市200092

出　　处：《勘察科学技术》2007年第1期6-9,共4页Site Investigation Science and Technology

摘　　要：在应变路径法的基础上,结合源汇理论的研究方法,可得到沉桩引起的土体竖向位移理论解,进而讨论了各种因素(如桩长(或沉桩深度)、离开桩身的距离、桩径)对沉桩时桩周地表隆起的影响,提出了沉桩的临界深度值和单桩的影响范围。结合现场实测资料和相关文献,从多方面将地表隆起的实测值与理论解进行了对比分析。On the basis of the strain path method, and combining with the research method of source-sink theory, the theoretical solution for the vertical displacement of soil caused by sinking pile is obtained. These factors are discussed, such as the length （or the sinking pile depth） of pile, the distance from the pile and the diameter of pile, which influence to the upheaval of the earth surface around sinking pile. The critical depth value and the influencing range for the sinking pile are put forward. Combining with the measured data and relevant document, the measured value of upheaval of the earth surface is compared with the theoretical solution.

关 键 词：应变路径法 源汇 地表隆起 沉桩 

分 类 号：TU473.1[建筑科学—结构工程]