This subject regards mine in Chengde as the object of research.The quality control of grouting technology has been designed, and horizontal displacement in monitoring spot in mined-out area has been designed.The stability of mined-out area was bad before reinforcement, and the distortion value of the groundsill meet demand after grouting.%以承德某采空区为研究对象,进行了注浆施工质量管理设计,对采空区监测点水平位移进行分析;治理前采空区不稳定,治理后地基变形值满足要求.
展开▼
