上坪矿区巷道压力控制及支护现状探讨

当前,上坪矿区安全支护工作耗费的资金成本较高,多采用混凝土材料,使用效果有限。在矿区的特殊环境中,需要加大压力控制强度,提高支护质量状况。材料中的应力状态、内部结构等因素都会影响巷道矿体压力状况,需要掌握巷道矿压控制原理,了解巷道压力控制及支护工作的有效形式。本文主要阐述了巷道压力控制及支护现状及有效革新措施。

浅谈煤矿回采巷道矿山压力控制与支护

随着国家经济的不断发展,煤炭的应用也越来越多,但是在现实生产环境下,由于井下的地质环境比较复杂,操作过程中如果出现失误很有可能导致人员伤亡。如何对煤矿回采巷道矿山压力进行合理控制、如何做好后期的支护工作变得非常重要。本文从煤矿回采巷道矿山压力控制技术出发,论述了如何进行煤矿回采巷道矿山压力的控制与支护。

煤矿回采巷道矿山压力控制与支护浅论

要在煤矿开采中,在一定程度上会对地层结构产生一定的影响,同时也会带来安全问题。因此,在煤矿开采中,有必要科学地控制煤矿巷道的开采压力,理清岩层的运行规律,分析它们之间的关系,科学地规划煤矿开采活动。此外,施工人员应对顶板塌陷与岩石运动破坏之间的关系有一定的认识,并认识到应力问题是由岩石运动或岩石损伤引起的。要想保证煤矿开采过程安全,给企业创造理想效益,需要在开采时,加强压力控制和支护施工。本文论述了如何进行煤矿回采巷道矿山压力的控制与支护。

Review of roadway control in soft surrounding rock under dynamic pressure

The basic characteristics of the soft rock roadway under the dynamic pressure are analyzed. At the same time, the three fundamental approaches for controlling the surrounding rock are proposed, which are improving the surrounding rock strength, lowering the rock mass stress and selecting the reasonable supporting technology. The research results are elucidated, including the distribution of the surrounding rock plastic zone, the movement and damage of the surrounding rock under the dynamic pressure, controlling the floor heave through reinforcing the roadway walls and corners, the new route to develop the roadway metal supporting technique, the key theory and technique for the bolt supporting in the coal roadway, the performance and prospect of the ZKD high water content quick setting material, and so on. Finally, some personally views are put forward about the roadway metal supporting, bolt supporting, new material and the stress relief under the high stress condition.