摘要
基于某矿井开采形成的复杂采空区,结合矿区水文地质条件,分别采用经验公式法和倍煤厚法对矿井的冒落带和导水裂缝带进行计算,结果表明经验公式法只适用于单层采厚1-3 m的煤层。煤层厚度大于3 m,导水裂缝带高度采用20倍煤厚法计算结果,最大高度为114.80 m。为相似地质条件矿区合理评价采空区对煤层开采的影响提供数据支持和计算经验。
Based on complex goaf and hydrologic condition of mining area, caving zone and water flowing fractured zone were calculated by experience formula method and times of coal thickness method respectively. The result showed that experience formula method was only applicable to 1-3m single layer thickness, 20 times coal thickness method computation was used to water flowing fractured zone when seam thickness was more than 3m and maximum height was 114.80 m. These methods provided data support and empirical calculation to reasonable evaluation on effect of coal mining in goaf under similar geological conditions.
出处
《煤炭与化工》
CAS
2016年第9期133-134,137,共3页
Coal and Chemical Industry
