兰州地区土钉墙支护受力研究  

Soil Nailing Wall Supporting Stress Research in Lanzhou Area

作　　者：梁潇文[1] 张福龙[1] 

机构地区：[1]陕西铁路工程职业技术学院,陕西渭南714000

出　　处：《中国锰业》2017年第3期190-192,共3页China Manganese Industry

基　　金：国家自然科学基金项目(50978128)

摘　　要：虽然兰州地区在基坑开挖时多采用土钉墙支护,但由于地层的复杂性,使得土钉墙的受力变形分析变得较为复杂,尤其是土钉墙在开挖期间土压力及土钉的受力分析,在理论与实践应用中还存在一定差距。以兰州城市规划展览馆基坑工程为例,结合理正深基坑支护结构设计软件FSPW-7.0,分析基坑在开挖时土压力及土钉拉应力的变形规律,并与现场实际监测数据进行对比分析。研究表明:采用软件FSPW-7.0计算分析时,所得的计算结果与现场实测的土钉最大拉应力及土压力吻合度较高,其计算结果可作为设计土钉墙参数选取的依据,并用以施工指导。Although soil nailing wall in foundation pit excavation support is adopted in in Lanzhou area, the complexity of the strata makes an analysis of stressed deformation of soil nailing wall relatively complex, especially in the soil nailing wall during the excavation of earth pressure and force analysis of soil nailing. It still exists in a certain gap to be theory and practice applications. In LanZhou city, the planning exhibition hall of foundation pit engineering, for example, is combined with the principle of the deep foundation pit in supporting structure design software FSPW-7.0. There is an analysis of earth pressure when foundation pit excavation and soil nail tensile stress are in the deformation law to be compared with the actual monitoring data. Our research analysis of software FSPW- 7.0 calculation will show that the calculation results with the field measurement of soil nailing the maximum tensile stress and soil pressure alignment are higher. The calculation results can be taken as the basis for design of soil nailing wall parameters selection to guide construction.

关 键 词：基坑 土钉墙 土压力 拉应力 

分 类 号：TU971[建筑科学—建筑理论]