煤矿综合减沉技术及其发展前景

Comprehensive technology and development prospect of reducing subsidence in coal mine

基于煤炭资源开采与环境保护和谐发展的要求,对比研究了我国现有减沉技术,分析了其在工程应用中存在的问题,在此基础上提出了综合减沉技术是我国未来减沉技术的发展方向。系统论述了5种综合减沉技术的原理及其应用原则,包括条带开采和离层注浆综合减沉技术、条带开采和冒矸区间隙注浆综合减沉技术、条带煤柱和离层注浆以及冒矸区间隙注浆综合减沉技术、离层注浆和冒矸区间隙注浆综合减沉技术、条带开采和充填开采综合减沉技术。随着我国加大矿区减沉和环境灾害综合治理力度,工业化、城镇化的快速发展,综合减沉技术更能满足减沉要求,将得到长远发展,但综合减沉技术是一项新的减沉举措,不同综合减沉技术中单一减沉技术相互作用机理、综合减沉技术施工工艺及减沉评价机制等方面有待进一步完善和研究。

Based on the requirements of harmonious development of coal mining and environmental protection, the reducing subsidence technologies being used were studied in China, and the problems in their application were analyzed, then it was proposed that the comprehensive technology of reducing subsidence would be the development orientation of reducing subsidence technologies in China. Mechanism and application principles of five kinds of comprehensive technologies of reducing subsidence were introduced, which included strip mining combined with abscission layer grouting, strip mining combined with waste rock area gap grouting,strip mining combined with abscission layer grouting and waste rock area gap grouting, abscission layer grouting combined with waste rock area gap grouting, strip mining combined with backfill mining. With the increase of efforts to reduce subsidence and environmental disaster a, the rapid development of industrialization and urbanization in China, comprehensive technology of surface subsidence-reducing would develop well, which is better to meet the need of reducing subsidence. Comprehensive technology of surface subsidence-reducing is a new surface subsidence-reducing initiative,interaction mechanism between different technologies in comprehensive technology of surface subsidence-reducing, construction technology and evaluation mechanism of reducing subsidence need to be improved and studied in future.