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煤矿斜井井筒过流砂层施工技术研究及应用

孟庆彬, 韩立军, 石荣剑, 柳志军, 路拓, 李向阳, 石高鹏

孟庆彬, 韩立军, 石荣剑, 柳志军, 路拓, 李向阳, 石高鹏. 煤矿斜井井筒过流砂层施工技术研究及应用[J]. 岩土工程学报, 2015, 37(5): 900-910. DOI: 10.11779/CJGE201505016
引用本文: 孟庆彬, 韩立军, 石荣剑, 柳志军, 路拓, 李向阳, 石高鹏. 煤矿斜井井筒过流砂层施工技术研究及应用[J]. 岩土工程学报, 2015, 37(5): 900-910. DOI: 10.11779/CJGE201505016
MENG Qing-bin, HAN Li-jun, SHI Rong-jian, LIU Zhi-jun, LU Tuo, LI Xiang-yang, SHI Gao-peng. Study and application of construction technology for inclined shafts penetrating drift sand strata in coal mine[J]. Chinese Journal of Geotechnical Engineering, 2015, 37(5): 900-910. DOI: 10.11779/CJGE201505016
Citation: MENG Qing-bin, HAN Li-jun, SHI Rong-jian, LIU Zhi-jun, LU Tuo, LI Xiang-yang, SHI Gao-peng. Study and application of construction technology for inclined shafts penetrating drift sand strata in coal mine[J]. Chinese Journal of Geotechnical Engineering, 2015, 37(5): 900-910. DOI: 10.11779/CJGE201505016

煤矿斜井井筒过流砂层施工技术研究及应用  English Version

基金项目: 国家自然科学基金项目(51174196,51204168,51109209,51309222); 山东省土木工程防灾减灾重点实验室开放课题(CDPM2014KF03); 中国矿业大学人才引进资助项目与青年教师“启航计划”; 江苏建筑职业技术学院重点课题(JYA14-02)
详细信息
    作者简介:

    孟庆彬(1985- ),男,山东菏泽人,博士,助理研究员,主要从事岩体加固理论与应用技术的研究。E-mail: mqb1985@126.com。

Study and application of construction technology for inclined shafts penetrating drift sand strata in coal mine

  • 摘要: 流砂层是矿井建设常遇见的不良地层,在含水或动力扰动下具有自流动性,施工不当会引起流砂向临空面流动充填开挖空间将井筒淹没或造成地表大面积塌陷。采用工程地质钻探与地面直流电法勘探技术,确定了流砂层的厚度与含水特征;根据斜井井筒穿越流砂层的垂深,将斜井井筒过流砂层技术方案进行分类研究,提出了斜井井筒过不同厚度流砂层的合理掘进技术;基于理论分析与数值计算,确定了斜井井筒支护结构承受的荷载,提出了斜井井筒过流砂层合理的井壁结构;为评价支护效果,对斜井井筒围岩变形、型钢支架受力、二衬接触应力、衬砌钢筋受力及渗水压力等进行了实时监测,监测结果表明:斜井井筒过流砂层的施工技术方案分类合理,保证了斜井井筒的掘进进度与施工安全;井壁结构安全可靠,保证了斜井井筒围岩与支护结构的稳定。
    Abstract: The drift sand stratum is a kind of common harmful stratum in mine construction. It is characterized by auto flow ability in water or under dynamic disturbance. Improper construction will cause the drift sand to flow to the free surface to fill the excavation space and get the shaft flooded or lead the ground to collapse. The water-holding condition and thickness of drift sand strata are determined by using engineering geological drilling and electrical prospecting technology. Based on the vertical depth of drift sand stratum, the constructing techniques for the inclined shaft penetrating the drift sand stratum are classified. A reasonable tunneling technology is presented for the inclined shaft penetrating the drift sand stratum with different thicknesses. Pressure ability of structure is calculated by means of both finite element method and analytical method. The reasonable structure of shaft lining is proposed. To evaluate the supporting effect, deformation, stress and permeability strength are monitored. The results show that the construction technology for the inclined shaft penetrating the drift sand stratum is reasonable, thus the tunneling progress and construction safety are ensured, and the structural safety and surrounding rock ability are guaranteed.
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出版历程
  • 收稿日期:  2014-09-03
  • 发布日期:  2015-05-19

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