• The stress relief method of hole diameter deformation was used to measure the stress distribution of the pillar structure in the mined area in a big phosphate mine.

    采用孔径变形应力解除测量大型磷矿采空区矿柱结构应力分布规律

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  • The stability of goaf-side roadways depends on not only the abutment distribution, but also the fracturing degree of the coal seam and rock strata alone the pillar width.

    一侧采空巷道稳定性不仅支承压力分布有关,而且煤体破坏程度有关。

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  • The results show that the abutment pressure distribution on coal pillar is the direct reflection of abutment stress induced by mining on the interfaces of coal seam and immediate roof.

    研究结果表明煤柱支承压力分布开采影响岩层相互作用结果,是开采引起集中应力煤层直接界面直接反映

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  • The stress level in elastic zone and the stress distribution in strain-softening zone are not affected by the pillar thickness. The former is related to the axial strain of the pillar.

    矿柱弹性区的应力水平软化区的应力分布矿柱宽度影响,前者与矿柱的轴向应变有关

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  • Accordingly, the distribution of abutment pressure on the block coal pillar is measured at working face with a steeply inclined seam of the12010 face, NO.

    据此原理,实测得到平煤集团十三矿12010大倾角综放开采工作面走向支承压力区段煤柱侧向支承压力分布

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  • With numerical simulation method, the distribution law of coal pillar support pressure in the floor was studied.

    运用数值模拟分析方法,研究煤柱支承压力底板分布规律

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  • The company has operations to promote the professional bodies and mature distribution networks, marketing and sales firm with strong support pillar.

    公司拥有专业运营推广团体成熟经销网络,是市场推广销售坚实支柱有力保障

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  • The company has operations to promote the professional bodies and mature distribution networks, marketing and sales firm with strong support pillar.

    公司拥有专业运营推广团体成熟经销网络,是市场推广销售坚实支柱有力保障

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