Xuehu coal main and subsidiary well have deep shaft, thick surface soil and strong disability, poor pourability in the hydrated grope rock and complex geology condition.
薛湖煤矿主、副井井筒井深、表土厚且膨胀性强、基岩含水层可注性差、地质条件复杂。
The regularity and parameter of surface movement aroused by mining under thick soil layer and thin base rock have its obvious characteristic and regularity.
厚松散层薄基岩下开采引起的地表移动规律及地表移动参数，有其明显的自身特点和规律。
Under stratum condition of thick soil layer, we can study it as random medium and use probability integral method to estimate surface movement.
在厚松散层地层结构条件下，可将其视为随机介质，采用概率积分法预计地表移动变形。
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