roof bolting

With grouting-bolting as the kernel, pre-stressed anchor rope and anchor as the auxiliary structure, the three-bolting combined supporting system combining pressure-relief technology of roof control and laneway floor heave control technology solved the supporting stability problem in deep-seated soft rock roadway.

通过以锚注为核心，预应力锚索和锚杆为辅助支护结构的三锚联合支护技术，结合控顶放压技术和底臌控制技术解决了深部软岩巷道的稳定性控制问题。

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The numerical model of roof bolting and rock was based on Hoek Brown's strength criterion.

基于虎克-布朗强度准则给出了岩体及顶板锚固的数值模型.

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Technological and economical analyses show that the breast stoping with roof bolting is more reasonable than others.

通过多种采矿方法的技术经济分析，认为采用锚杆护顶的全面采矿法较为合理。

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The development and research of the bolter, and the improvement of the bolter properties, are the key factors to enhance the quality of the roof bolting support system.

对锚杆钻机进行开发和研究，提高钻机的性能，成为了提高锚杆支护质量的关键。

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Flared type tube fittings& Inverted flare bolts hydraulic roof bolting equipment

GB/T5650-1985扩口式管接头空心螺栓液压式顶板锚栓安装设备

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Behaviour of ground pressure in roadways of flat and wide rectangular cross-section and mechanism of roof bolting

扁宽断面巷道矿压显现特征及其锚杆支护机理

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The roof abscission layer is the biggest security hidden danger in bolting support tunnel.

顶板离层是锚杆支护巷道最大的安全隐患之一.

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Brief analysis on the destabilization of the roof bolting by means of catastrophe theory

锚杆支护顶板失稳的突变理论浅析

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Weathering Weak Entry of Composite Roof Bolting Technology Research

软弱风化复合顶板巷道锚杆支护技术研究

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Several cases of roof bolting application in various mining and geological conditions were described.

在不同的采矿地质条件下，进行了多种顶板锚固应用研究。

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Discussion on Some Issues in Research and Development of Roof Bolting Machine

对锚杆钻机研制中几个问题的探讨&岩石钻孔参数的弹性配合

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