摘要
针对土钉支护技术在软弱土基坑中存在边坡位移较大,安全程度降低等问题,介绍复合土钉支护技术(土钉+微型桩)在饱和粉土基坑支护中控制建筑物与边坡变形的实用设计方法和施工处理措施。通过现场试验和监测,对比分析普通土钉支护与复合土钉支护效果。工程实践证明,复合土钉支护(土钉+微型桩)技术能有效地控制基坑位移。
when soil naihng technology is applied in weak soil, the displacement of slope is increased and security of slope is brought down. The composite soil nailing technology（soil nailing and micro-pile） is adopted for practical design of controlling buildings and slope displacement , as well as for measures of construction in saturated silty soil. The effect of composite soil nailing is compared with that of general soil nailing by actual trail and observation. Project practice proves that displacement of excavation can be controlled effectively by composite soil nailing（soil nailing and micro-pile）.
出处
《工业建筑》
CSCD
北大核心
2008年第5期115-118,共4页
Industrial Construction
基金
建设部科技计划项目资助(基于变形控制的基坑组合支护技术的应用研究)(05-K1-14)
关键词
基坑支护
饱和粉土
复合土钉(土钉+微型桩)
控制变形
excavation support
saturated silty soil
composite soil nailing （soil nailing and micro-pile）
controllingdisplacement
