浅埋深中厚煤层超前支护压力分布研究

Research on Pre-Support Stress Distribution of Shallow Medium Thick Coal Seam

通过对综采工作面超前支承压力的观测,分析了综采工作面在开采过程中巷道围岩应力的活动规律。采用理论分析、数值模拟、现场实测的方法,对某矿区工作面支承压力进行综合分析,得出综采工作面超前支承压力分布变化的规律,为回采巷道超前支护长度、支护强度等提供了理论依据;为今后回采巷道的顶板支护和回采过程中的顶板管理,提供了理论依据和安全保障。

By the measurement of advanced abutment pressure of fully-mechanized driving faces, the paper analyzes the activity rules of surrounding rock stress during mining. The author studies the supporting stress of working faces by integrated approaches, including： theoretical analysis, numerical simulation and site measurement and concludes the distributing law of pre-support stress, which provides the theoretical evidence for the support length and intensity. In addition, the study provides the theoretical proof and safety guarantee for the roof support and roof control of the future mining.