砂卵石基坑工程应用喷锚网支护技术的试验研究  

On the Bracing Technique by Using Jet Anchor for Sandy Gravel Excavation Engineering

作　　者：张欣[1] 刘东燕[1] 廖心北 孙文 

机构地区：[1]重庆大学土木工程学院,重庆400045 [2]成都四海岩土工程有限公司,成都610041

出　　处：《工程勘察》2001年第5期15-18,67,共5页Geotechnical Investigation & Surveying

摘　　要：喷锚网支护技术在砂卵石基坑工程中的应用日益广泛 ,但是其理论研究却远远滞后于工程实践。本文结合对砂卵石基坑支护工程中应用喷锚网支护技术的介绍 ,通过现场锚杆拉拔试验、锚杆应力应变的测试以及观测基坑壁变形三项现场试验的研究 ,提出对目前砂卵石基坑喷锚网支护设计方法和施工工艺的改进意见和建议。The use of bracing technique with jet anchor in sandy gravel excavation is increasingly widespread but theoretical research lags far behind practice.Improvement and suggestion for the current design and construction of bracing by jet anchor in sandy gravel excavation are proposed herein in association with the introduction of the said technique through many field tests and monitorings.

关 键 词：喷锚网 支护 拉拔试验 变形观测 砂卵石 基坑工程 

分 类 号：TU753.1[建筑科学—建筑技术科学]