强湿条件下的素土挤密桩施工处理  

Construction Treatment of Plain Soil Compaction Pile Under Strong Wet Condition

作　　者：李昂 谢永伟 吴迪 王幸男 LI Ang;XIE Yongwei;WU Di;WANG Xingnan(Beijing Machinery Construction Group Co.,Ltd.,Beijing 102628,China)

机构地区：[1]北京市机械施工集团有限公司,北京102628

出　　处：《建筑施工》2023年第3期453-456,共4页Building Construction

摘　　要：为解决湿陷性黄土地区在多雨天气施工时,强湿条件下素土挤密桩承载力不能达到设计要求的质量问题,以西安市某完工工程的素土挤密桩施工经验为依据,提出了一种在强湿条件下,将素土挤密桩上部含水率较大部分桩体进行挖除,通过增大褥垫层厚度以达到换填目的的一种处理方法。经过静载试验验证,处理后的素土挤密桩承载力得到了有效改善,承载力满足设计要求,验证了该处理方法的可行性,可为今后其他类似工程提供借鉴。In order to solve the quality problem that the bearing capacity of the plain soil compaction pile cannot meet the design requirements in the construction of wet collapsible loess area in rainy weather,based on the construction experience of the plain soil compaction pile of a completed project in Xi'an,a treatment method is proposed to excavate the upper part of the plain soil compaction pile with more water content under the strong wet condition,and to achieve the purpose of replacement by increasing the thickness of the cushion layer.Through the verification of static load test,the bearing capacity of the treated plain soil compaction pile has been effectively improved,and the bearing capacity meets the design requirements,which verifies the feasibility of the treatment method,and can provide reference for other similar projects in the future.

关 键 词：湿陷性黄土 强湿 素土挤密桩 桩体挖除 

分 类 号：TU753[建筑科学—建筑技术科学]