【摘要】 以沈阳市某高层住宅深基坑桩锚支护结构为例,通过对一种新型锚杆技术钢锚管在实际工程中的应用研究,分析了钢锚管的工作机理及力学性能.并运用逐层开挖承载力不变法对钢锚管的承载力及稳定性进行了验算.阐述了钢锚管强度计算和稳定性验算的方法.工程实践证明钢锚管不但能够很好地解决软土地区锚杆钻孔时遇到的容易塌孔的施工难题,加快施工进度,而且因为取材方便、制作简单完全可以代替市场上现有的成品自钻式锚杆从而降低工程造价.更多还原

【Abstract】 The application of a kind of new anchor techniques-steel anchor pipe to actual engineering is studied.The work mechanism and mechanics properties of the steel anchor pipe are analyzed.The formula of excavating layer by layer with no changing for the load is employed to check the load and stability of steel anchor pipes.Then the method for calculating the strength and stability of the steel anchor pipe is provided based on a certain actual engineering project.It is proved that the steel anchor pipe not only can solve the problem of collapsing-hole when constructors drill holes in soft soil areas,but also can speed up the construction and economize the expenses.更多还原