采场底板应力–渗流–温度多场耦合监测技术

Stress-Seepage-Temperature Multi-Field Coupling Monitoring Technology for Stope Floor

现阶段我国矿井水害日益严重,如何对矿井突水进行有效防治显得尤为重要。本文在现有水害防治研究的基础上,选取神东矿区保德煤矿81307工作面作为现场典型研究工作面,通过布置两组监测点,建立以钻孔应力传感器、采动渗压传感器、全景钻孔摄像仪等监测手段的采动应力场–裂隙场–渗流场的动态监测方法,根据以岩层底板采动多场随工作面推进的演化规律,为神东矿区各煤矿以及全国其他煤矿的防治水工作提供借鉴。

At this stage, China's mine water damage is becoming more and more serious. How to effectively prevent mine water inrush is particularly important. Based on the existing research on water damage prevention and control, this paper selects the 81307 working face of Baode Coal Mine in Shendong Mining Area as the typical research work surface of the site. By arranging two sets of monitoring points, a dynamic monitoring method of the mining stress field-fracture field-seepage field with monitoring methods such as borehole stress sensor, mining osmotic pressure sensor and panoramic borehole camera is established, according to the mining of the rock floor. The evolution law of multi-field advancement with the working face provides reference for the coal mines in Shendong mining area and other coal mines in China.