本文探讨了影响煤柱稳定性的因素，提出了采用锚杆支护加固煤柱减小煤柱尺寸提高房柱式采煤回采率的技术途径。

The factors affecting coal pillar stability are discussed, and the technical way reducing coal pillar size and enhancing recovery ratio is put forward by means of rock bolting.

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一个四柱支承大跨度预应力浅网壳结构的有限弹性变形分析表明，锚栓对计算结果影响较大。

Finite elastic deformation analysis of a four column supported prestressed latticed shallow shell roof shows that the bolts have influence upon the computed results more significantly.

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经实践证明，锚带网(索)及点柱加强的综合支护技术在大断面大跨度巷道是可行的。

The Practice has proven that the blot (rope) and point-to strengthen the comprehensive support technology in large-span large section of the roadway is feasible.

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