砼环梁内撑在软土深基坑支护中的应用  

Discussion on Circularity beam brace system for deep foundation pit in soft clay

作　　者：庄水发[1] 

机构地区：[1]福建省建筑设计研究院,福州350001

出　　处：《福建建设科技》2009年第2期2-4,12,共4页Fujian Construction Science & Technology

摘　　要：在软土深基坑中,侧向土压力较大。采用混凝土环梁内支撑体系,可以将侧向荷载转化为环梁的轴力,以充分发挥混凝土的受压特性;同时中间环梁形成的大空间可以方便土方开挖和地下室施工。环梁应有足够的截面刚度,并设置足够的立柱以保证垂直面内的稳定。Lateral soil pressure is great in deep pit in soft clay foundation. Circularity beam brace system can translate lateral load into the axial force of circularity beam. In this way, the advantage of concrete can be taken. At the same time, large space provided by the circularity beam is convenient for excavation and construction. Circularity beam should have enough stiffness of section. Sol- dier piles should be set for stability of circularity beam in the vertical plane.

关 键 词：环梁 软土 深基坑 支护 

分 类 号：TU753[建筑科学—建筑技术科学]