影响复合土钉墙的变形因素的实测分析  

Factors for displacement of composite soil nailing walls

作　　者：孙剑平[1] 魏焕卫[1] 江宗宝[1] 邵广彪[1] 

机构地区：[1]山东建筑大学工程鉴定加固研究所,山东济南250014

出　　处：《岩土工程学报》2010年第S1期430-434,共5页Chinese Journal of Geotechnical Engineering

基　　金：建设部科技攻关计划项目(2008-K2-30;05-K1-14)

摘　　要：通过对某复合土钉墙坡顶侧向变形的实测分析,提出了影响复合土钉墙变形的几个因素,包括动水压力、坡顶荷载、土方超挖等,并根据工程实测中出现的问题及其处理措施提出了几条建议。建议在具体的施工过程中要减小地表水对边坡坡面的水压,合理确定降水排水口的设置。土方开挖时应严禁超挖,特别对于软土地区,在空间也应分区分片开挖。基坑开挖或完成后,坡顶荷载的堆放大小和位置应严格控制在设计范围内。Based on the actual measurement and analysis of lateral deformation of a composite soil nailing wall,several factors that may influence the deformation are raised,including dynamic water pressure,load on slope top,excessive excavation of soil.At the same time,several suggestions are made on the basis of problems found in the actual measurements and their countermeasures.It is suggested to reduce the pressure of surface water applied on the slope surface and to determine the rainspout reasonably during the construction.It should be strictly prohibited to excavate earthwork excessively,especially in the soft soil area,and the excavation sites should be spaced.After the excavation of foundation pits begins or finishes,the size and location of load on the slope top should be kept under strict design control.

关 键 词：复合土钉墙 水压力 坡顶荷载 土方超挖 

分 类 号：TU476[建筑科学—结构工程]