论文部分内容阅读
结合新汶矿务局孙村煤矿深井高地应力、复合顶板且受地质构造影响的工程地质特点，研究了深井困难条件煤巷锚索采用小孔径、施加高预应力的结构形式和施工工艺。工程试验表明，该技术是解决深井高地应力、复合顶板、大断面交岔点支护难题的好方法。
Combined with the engineering geology characteristics of the deep well and high ground in Suncun Coal Mine of Xinwen Mining Bureau and the complex roof affected by the geological structure, this paper studied the structure and construction technology of small borehole and high prestressing force of the coal roadway in the deep well with difficult conditions. Engineering tests show that the technology is a good way to solve the problems of deep well ground stress, composite roof and large section cross-point support problems.