下沉体积与开采体积的关系及其应用

Relationship between Subsidence Volume and Mining Volume and Its Application

根据概率积分法原理,运用概率理论,提出单元开车半无限开采的下沉曲线表达式,从而得出了下沉体积与开采体积之比等于下沉系数这一重要结论。应用这一结论求出了达到充分采动所需D/H最小值的计算方法,以及主要影响角的正切和拐点偏移距的计算公式,并应用市场资料加以证实,为高精度地预计地表移动变形找到了一种有效途径。

This paper puts forward to subsidence curve expression of unit driving semi infinite mining by using probability theory and in accordance with the probability integral method principle,and then comes to an important conclusion that the ratio of subsidence volume to mining volume equals subsidence factor.Then obtaining the calculating method of the minimum value of D/H under the condition of full subsidence by using the conclusion,and confirming by using market materials,which provides an effective way for accurately predicting surface movements and deformations