采矿与安全工程学报 ›› 2012, Vol. 29 ›› Issue (1): 95-100.

• 论文 • 上一篇    下一篇

岩石膨胀界限抗渗强度及在底板突水评价中应用

  

  1. 1.中国矿业大学资源与地球科学学院,江苏  徐州  221116;2.兖矿集团杨村煤矿,山东  邹城  272118;
    3.中国科学院武汉岩土力学研究所岩土力学与工程国家重点实验室,湖北  武汉  430071
  • 收稿日期:2011-06-11 出版日期:2012-01-15 发布日期:2011-12-14
  • 作者简介:段宏飞(1983-),男,山西省大同市人,博士,从事煤矿工程地质水文地质与岩土工程方面的研究。 E-mail:dhfcumt9@126.com Tel:15852149599
  • 基金资助:

    江苏省普通高校研究生科研创新计划项目(CXZZ11-0306);中国矿业大学青年科研基金项目(2009A029)

Rock Expansion Boundary Anti-Permeability Strength and Its Application in the Coal Mine Floor  Water Inrush Evaluation

  • Received:2011-06-11 Online:2012-01-15 Published:2011-12-14

摘要: 在岩石全应力应变伺服渗透试验的基础上,提出了岩石膨胀界限抗渗强度的概念,并在此基础上建立了底板突水评价模型,模型考虑了底板岩层有效隔水层厚度、岩性、岩体完整程度以及膨胀界限抗渗强度并详细分析了各参数的取值,以兖矿集团杨村煤矿17煤及其2702工作面突水评价为例,证实了以膨胀界限抗渗强度为基础的底板突水评价模型在突水评价上具有可行性。

关键词: 岩石膨胀界限抗渗强度, 底板突水, RQD, 全应力应变伺服试验, 渗透率

Abstract: To solve the difficulties in coal mine floor water inrush evaluation,on the basis of the servo-controlled permeability test of rock in the complete stress-strain process,we proposed the concept of rock expansion boundary anti-permeability strength,and established a theoretical evaluation model of floor water inrush.In the model,several factors,such as the floor aquifuge effective thickness,lithology,rock mass integrity,and expansion boundary anti-permeability strength were considered,and the taking values of all factors were described in detail.Taking the No.17 coal seam and 2702 working face in Yangcun coal mine,Yanzhou mining group as an example,it proves that the evaluation model based on the expansive boundary anti-permeability strength is feasible to evaluate the coal mine floor water inrush.

Key words: rock expansive boundary anti-permeability strength, floor water inrush, RQD, complete stress-strain servo-controlled test, permeability