石炭沟河下煤层安全开采厚度模拟  

Simulation of Safety Mining Thickness Under Shitangou River

作　　者：余学义[1,2] 张元振[1,2] 雷武林[1,2] 

机构地区：[1]西安科技大学能源学院,陕西西安710054 [2]教育部西部矿井开采及灾害防治重点实验室,陕西西安710054

出　　处：《煤矿安全》2013年第7期132-134,共3页Safety in Coal Mines

基　　金：陕西省重点实验室资助项目(2010JS020);高等学校博士学科点专项科研基金资助项目(20110488)

摘　　要：通过分析杉木树煤矿的水文地质条件,应用物理相似和数值模拟实验方法,模拟开采引起覆岩冒裂带发育高度、范围和地表裂缝情况;结合F-RFPA2D数值试验模拟固液耦合条件下开采引起覆岩导水裂缝带的高度及其发展形态和渗流过程。实验结果显示,采高2 m时导水裂隙带高度为70 m对采区覆岩和河床破坏较小,可以实现石炭沟河下安全采煤。Through the analysis of hydrographic condition in Shanmushu Coal Mine,applying physical similarity and numerical simulation experiment method,the paper simulated development height,range and surface cracks of water flowing fractured zone caused by mining.Then,combined with F-RFPA2D numerical simulation of solid liquid coupling conditions caused by mining overburden water flowing fractured zone height and its development and morphology of porous flow process,the simulation results show that height of water flowing fractured zone is 70 m with mining height of 2 m,mining area overlying rock and riverbed destruction is smaller,and it can realize safe mining under the Shitangou River.

关 键 词：河下采煤 限厚开采 模拟实验 导水裂隙带 

分 类 号：TD823[矿业工程—煤矿开采]