Water Cultural Relics Survey Team of China National Administration of Coal Geology

为解决羊东矿实际开采储量有限、解放呆滞煤量的问题，在控制地表变形的基础上，通过开采保护煤柱的方法，提高煤炭的采出率，延长矿井的生产年限。本文采用概率积分模型对地表变形值进行预计分析，并研究工业广场保护煤柱开采所导致的重要建构筑物采动损害特征，分析工业广场保护煤柱开采中重要建构筑物的影响程度以及墙体、地面变形情况，在此基础上制定相应的维护措施。结果表明，通过概率积分模型得到地表最大下沉值为1.7 m，最大水平位移值为0.51 mm/m，最大倾斜值为16 mm/m，曲率为0.68（10-3/m），判断交换站外侧的楼房会受到IV级破坏，根据结果对墙体进行实施监测，做好修补措施，同时对地面进行监测，并及时将裂缝进行了修补，减小开采对地表的破坏程度，从而保护地表建筑物，实现煤炭合理有效开采。

In order to solve the problem of limited actual mining reserves and liberation of stagnant coal in Yangdong Mine, on the basis of controlling surface deformation, the method of mining protective coal pillars was used to improve the recovery rate of coal and prolong the production life of the mine. In this paper, the probability integral model was used to predict and analyze the surface deformation value, and the mining damage characteristics of important structures caused by the mining of protective coal pillars in industrial square were studied. The influence degree of important structures and the deformation of wall and ground in the mining of protective coal pillars in industrial square were analyzed. On this basis, the corresponding maintenance measures were formulated. The results showed that the maximum surface subsidence value obtained by the probability integral model was 1.7 m, the maximum horizontal displacement value was 0.51 mm / m, the maximum tilt value was 16 mm / m, and the curvature was 0.68 ( 10-3 / m ). It was judged that the building outside the exchange station would be damaged by grade IV. According to the results, the wall was monitored, and the repair measures were made. At the same time, the ground was monitored, and the cracks were repaired in time to reduce the damage degree of mining to the surface, so as to protect the surface buildings and realize the reasonable and effective mining of coal.

张梦华. 羊东矿保护煤柱开采地表变形研究[J]. 煤炭与化工, 2024, 47(3): 27-29，33..

Zhang Menghua. Study on surface deformation of protective coal pillar mining in Yangdong Mine. CCI, 2024, 47(3): 27-29，33..