北京某土钉支护基坑工程受季节性冻土影响分析

ANALYSIS OF THE EFFECT OF SEASONAL FROZEN SOIL ON A FOUNDATION EXCAVATLON ENGINEERING IN BEIJING SUPPORTED BY SOIL NAILING SYSTEM

基坑工程是临时性工程,在相关的规程里并没有明确要求采取防冻措施。但是北方地区每年开春时期基坑时有险情并有滑坡现象,其中季节性冻土有很大的影响。以北京某工程冬期及开春的土钉内力变化分析了季节性冻土对土钉支护的影响。

Foundation excavation is a temporary work.The relevant stundards did not explicitly call for frost-proofing measures.But foundation danger and landslide phenomenon occur every early spring in the northern region.A great influence on soil nailing is seasonal frozen soil.It is used the change of soil nails stress of a foundation excavation in Beijing in winter and early spring,to analyze the effect of seasonal frozen soil on the soil nailing.