综放开采导水裂隙带高度预测方法  

FORCAST ABOUT THE HEIGHT OF WATER FRACTURED ZONE UNDER SUB LEVEL CAVING METHOD

作　　者：邹海[1,2,3] 桂和荣[1,2,3] 王桂梁[1,2,3] 周庆富 

机构地区：[1]中国矿业大学 [2]淮南矿业学院 [3]淮南煤电总公司

出　　处：《煤田地质与勘探》1998年第6期43-46,共4页Coal Geology & Exploration

基　　金：煤炭科学基金

摘　　要：显式拉格朗日差分是８０年代才开始出现的一种新的数值分析方法，已成功地运用于边坡工程、挡土墙设计及围岩支护等方面。本文尝试将其应用于综采放顶煤条件下导水裂隙带高度的预测，结合新集矿１３０３综放工作面进行了模拟分析，根据采后覆岩应力变化特点及破坏状况确定出导水裂隙带高度。实践证明该法在导高预测方面较其它数值方法具有较大的优越性。As a new numerical analytical method,fast lagrangian analysis of continua which appeared in 1980s’,has been used in various fields,such as slope engineering,retain wall,supports of surrounding rocks and so on.In this paper,it is applied to predict the height of water conducted zone under sub level caving method.As an example,the height of water conducted zone about 1303 sub level caving in Xingji coal mine is obtained through simulation analyses,based on changeable characteristics of the stress and failure conditions after caving.This method is proved to have more advantages in comparison with other numerical methods.

关 键 词：导水裂隙带 高度预测 矿井水 煤矿 采煤 

分 类 号：P641.461[天文地球—地质矿产勘探] TD745[天文地球—地质学]