With the method deduced by the limit equilibrium condition, the foundationstability can be determined.
根据极限平衡条件推导出新的方法，可用以判定地基未塌陷土体的整体稳定性。
2
The foundationstability and residual deformation must be evaluated before building life or service facilities above old mine goaf.
在老采空区上方建设生活或服务设施时，必须对老采空区上方地基稳定性和残余变形情况进行评价和预测。
3
Geological structure, structural plane, rock property, cave shape and groundwater are important factors of qualitative evaluation for cave foundationstability.