邻矿采空区积水对边界防水煤柱留设安全性探究  

Research on the safety of boundary waterproof coal pillar retention by water accumulation in goaf of adjacent mines

作　　者：武宇亮 刘延欣 吴玉石 闫增会 WU Yu-liang;LIU Yan-xin;WU Yu-shi;YAN Zeng-hui(Baodian Coal Mine,Yankuang Energy Group Company Limied,Zoucheng 273513,China)

机构地区：[1]兖矿能源集团股份有限公司鲍店煤矿,山东邹城273513

出　　处：《煤炭科技》2022年第2期80-82,93,共4页Coal Science & Technology Magazine

基　　金：国家自然科学基金(41741020)。

摘　　要：为了探讨与鲍店煤矿相邻的横河煤矿靠近边界采空区积水对已留设的70 m防水煤柱的影响,建立了采空区积水对井田边界不同影响的煤柱留设模型,采用相关公式,考虑较理想和相对实际2种条件下分别对采空区积水安全最大煤柱进行了计算,发现2种方法计算的结果最大值均小于70 m,因而认为两矿井事先留设的边界防水煤柱是安全的。研究结果对鲍店煤矿靠近边界合理开采及水害超前防治具有较重要的参考价值。In order to explore the influence of water accumulation in the gob near the boundary of Henghe Coal Mine,which was adjacent to Baodian Coal Mine,on the existing 70 m waterproof coal pillar,a coal pillar retention system with different effects of water accumulation in the goaf on the boundary of the mine field was established.The model was set up,and the relevant formula was used to calculate the maximum coal pillar with water accumulation in the goaf under two ideal conditions and relative actual conditions.It was found that the maximum value of the results calculated by the two methods was less than 70 m.The boundary waterproof coal pillar left in advance was safe.The research results had important reference value for the reasonable mining near the boundary of Baodian Coal Mine and the advanced prevention and control of water hazards.

关 键 词：井田边界 采空区积水 防水煤柱 经验公式 计算模型 

分 类 号：TD745[矿业工程—矿井通风与安全]