垮落带

3煤层全采后（4个分层）垮落带高度为10m左右，导水裂隙带的高度为21.5m，与理论计算和数值模拟结果基本一致；

The height of the watering fissures is 21.5m because the height of caving zone is about 10m after the mining of all the 3 seam ( 4 layers ), and the result basically accord to the result of theoretic calculating and numerical simulation ;

通过理论分析和实验室试验，得出：实施垮落带和裂隙带注充技术可有效的控制覆岩采动下沉，消除地表沉降，保护地表建筑物、构筑物的安全。

Through theoretical analysis and laboratory tests the main conclusions of research is as followed : It is effective to implement back filling technique in caving zone and breaking zone , control overburden rock mining subsidence , eliminate surface subsidence and protect the safety of the surface buildings .

利用最小二乘法原理对采动岩体裂隙发育高度的实测数据进行拟合计算，得出潘谢矿区垮落带、导水断裂带高度的理论计算式。

The actually measured data of the growth height of separation fracture of mining rock was fitted by least squares methods to get the theoretical calculating formula of height of caving zone and fracture band .