深部极不充分开采非常规观测站预测参数求取  

Acquisition for prediction parameters of unconventional surveying monument under the condition of super sub-critical extraction in deep mining

作　　者：李春意[1] 张旭[1] 袁德宝[2] 郭增长[1] 

机构地区：[1]河南理工大学测绘与国土信息工程学院,河南焦作454000 [2]中国矿业大学(北京)地球科学与测绘工程学院,北京100083

出　　处：《河南理工大学学报（自然科学版）》2015年第6期797-801,共5页Journal of Henan Polytechnic University（Natural Science）

基　　金：国家自然科学基金资助项目(41101520);河南省科技创新团队项目(13IRTSTHN029);河南省科技攻关(产学研类)项目(132107000028)

摘　　要：为了研究深部极不充分开采地表移动的规律及预测参数的求取方法,对比分析了煤矿区地表移动观测站预测参数识别方法,基于概率积分法和概率密度函数法,构建了单向极不充分开采非常规观测站曲面拟合函数模型。以云驾岭煤矿三采区首采面12303工作面开采为例,采用曲面拟合法求取了地表沉陷预测参数。结果表明:在非常规观测站布设条件下,曲面拟合求参法适合于该类地质采矿条件,地表下沉率为0.12,走向主要影响角正切值为0.5,倾斜下山方向主要影响角正切值为1.2,走向左、右拐点偏移距分别为0.46 H0和0.2 H0,而最大下沉点向下山方向偏移量很小。这对于指导建筑物下安全开采和矿区保护煤柱留设具有一定的参考价值。For research ground surface movement law and prediction parameters obtaining method under the condition of super-subcritical extraction in deep mining,the prediction parameters recognition method of surface movement surveying monument was analyzed and compared in coal area. Based on a probability integral and a probability density function,the surface fitting function models of super sub-critical extraction along some directions were constructed for unconventional surveying monuments. For first 12303 panel of three mining sections in Yunjialing colliery example,surface mining prediction parameters were determined by means of surface fitting. The results of this research indicate that under the condition of unconventional surveying monuments layout the method of surface fitting is adapted to the geological condition of a coal mine. Moreover,surface subsidence factor is 0. 12,main influence angle tangent value is 0. 5 and 1. 2 along strike and diphead direction separately. Furthermore,inflexion point offsets alone strike left and right are 0. 46 H0 and 0. 2 H0 separately. However,the offset displacement of maximum subsidence point is very little along the diphead direction. It is of reference value to guide secure coal mining under structures and setting protective coal pillar in a coal area.

关 键 词：深部开采 极不充分开采 非常规观测站 开采沉陷 

分 类 号：TD325.4[矿业工程—矿井建设]