[1]刘德旺,刘 洋,赵春虎.泥岩全破坏过程中渗透特性试验研究[J].西安科技大学学报,2015,(01):78-82.[doi:10.13800/j.cnki.xakjdxxb.2015.0113]
 LIU De-wang,LIU Yang,ZHAO Chun-hu.Experimental study on the characteristics of permeability in the all failure process of mudstone[J].Journal of Xi'an University of Science and Technology,2015,(01):78-82.[doi:10.13800/j.cnki.xakjdxxb.2015.0113]
点击复制

泥岩全破坏过程中渗透特性试验研究(/HTML)
分享到:

西安科技大学学报[ISSN:1672-9315/CN:61-1434/N]

卷:
期数:
2015年01期
页码:
78-82
栏目:
出版日期:
2015-02-28

文章信息/Info

Title:
Experimental study on the characteristics of permeability in the all failure process of mudstone
文章编号:
1672-9315(2015)01-0078-05
作者:
刘德旺1刘 洋2赵春虎2
1.山西焦煤集团有限责任公司,山西 太原 030024;
2.中煤科工集团西安研究院有限公司 水文所,陕西 西安 710054
Author(s):
LIU De-wang1LIU Yang2ZHAO Chun-hu2
1.Shanxi Coking Coal Group Co.,LTD,Taiyuan 030024,China;
2.Hydrogeology Research Institure,Xi'an Research Institute of China Coal Technology & Engineering Group Corp,Xi'an 710054,China
关键词:
泥岩 渗透性 裂隙 应力 应变
Keywords:
permeability crack stress strain
分类号:
TD 823
DOI:
10.13800/j.cnki.xakjdxxb.2015.0113
文献标志码:
A
摘要:
为了研究某矿区泥岩的渗透特性,提高底板抵抗承压水能力,对指导进一步开展泥岩的阻水抗渗特性机理提供科学依据。采用理论分析与室内试验相结合的方法,通过对全应力-应变作用下泥岩试样的渗透率、应力、应变与关键点指标测试,揭示泥岩岩样泥岩试样的渗透特性以及应变对渗透率的影响规律。研究表明:干燥状态下泥岩试样强度较高,是良好的隔水层,但遇水软化后其抗压强度大幅度降低; 泥岩渗透率-应变曲线由低水平渗透段、裂隙导通渗透段和破坏后渗透段三段组成,泥岩的渗透率与应力状态关系密切,其渗透率的峰值往往滞后于应力应变峰值点,这由岩样介质本身的特性所决定; 泥岩渗透率-应变曲线峰值前变化规律反映了岩石的破碎程度,而峰值点后的渗透率水平反映了岩石残余应力下的渗透特性。总体上来看,为防止承压水突破泥岩隔水岩层,应加强底板泥岩采动破坏深度及承压水导升高度的现场监测,这为底板采动岩体断裂失稳和突水等灾害预测预报提供参考依据。
Abstract:
To study the permeability of mudstone in one mining area and improve the ability of bottom to resist the confined water,providing a scientific basis to guide further development of mudstone's permeability mechanism for preventing and resistancing water.Combining the methods of theoretical analysis and laboratory test,the mudstone samples of permeability,stress and strain,and the key indicators were tested under the effect of complete stress-strian,revealing the permeability of mudstone samples and the influence of strain on the permeability.Research shows that: mudstone sample has high strength under dry state,It is a good water-resisting layer,but the compressive strength substantial decreases because of the water softening; Mudstone permeability-strain curve is composed of three sections: low permeability,fracture conductivity penetration and damage after penetrating,the permeability of mudstone is closely related to stress state,the permeability of the peak often lag behind the peak stress and strain,these are determined by the characteristics of the sample itself; The variation of mudstone before the peak of permeability-strain curve reflected the broken degree of rock,and the penetration level after the peak point reflected the permeability of rock under the residual stress.Overall,in order to prevent the confined water from breaking the mudstone water-barrier rock,we should strengthen the backplane mudstone's mining depth and field monitoring of confined water mediating height.It provides a reference basis to predict the floor mining-induced fracture instability of rock mass and water inrush disaster.

参考文献/References:

[1] 刘英锋,王 新.黄陇侏罗纪煤田顶板水害防治问题及对策探讨[J].西安科技大学学报,2013,33(4):431-435. LIU Ying-feng,WANG Xin.Water hazard prevention and control in Huanglong jurassic coalfield [J].Journal of Xi'an University of Science and Technology,2013,33(4):431-435.
[2] 孙 钧.岩土材料流变及其工程应用[M].北京:中国建筑工业出版社,1999. SUN Jun.The rheology and engineering application of the geotechnical material[M].Beijing:China Architecture and Building Press,1999.
[3] 余学义,邱有鑫.沟壑切割浅埋区塌陷灾害形成机理分析[J].西安科技大学学报,2012,32(3):269-274. YU Xue-yi,QIU You-xin.Analysis of subsidence status formation mechanisms in shallow mining seam of ravine cutting area[J].Journal of Xi'an University of Science and Technology,2012,32(3):269-274.
[4] 张 玉,徐卫亚,赵海斌,等.碎屑砂岩三轴压缩下强度和变形特性试验研究[J].岩土力学,2014,35(3):666-674. ZHANG Yu,XU Wei-ya,ZHAO Hai-bin,et al.Experimental investigation on strength and deformation properties of clastic sandstone under triaxial compression[J].Rock and Soil Mechanics,2014,35(3):666-674.
[5] 蒋凌志,顾家裕,郭彬程.中国含油气盆地碎屑岩低渗透储层的特征及形成机制[J].沉积学报,2004,22(1):13-18. JIANG Ling-zhi,GU Jia-yu,GUO Bin-cheng.Characteristics and mechanism of low permeability clastic reservoir in Chinese petroliferous basin[J].Acta Sedimentologica Sinica,2004,22(1):13-18.
[6] 何满潮,景海河,孙晓明.软岩工程力学[M].北京:科学出版社,2002. HE Man-chao,JING Hai-he,SUN Xiao-ming.Engineering mechanics of soft rock[M].Beijing:Science Press,2002.
[7] 张 玉,赵海斌,徐卫亚,等.某水电站坝基挠曲破碎带工程力学特性试验研究[J].岩土力学,2013,34(12):3 437-3 445. ZHANG Yu,ZHAO Hai-bin,XU Wei-ya,et al.Experimental investigations on engineering mechanical properties of sandstone in the deflection fractured zone in dam foundation of a hydropower station[J].Rock and Soil Mechanics,2013,34(12):3 437-3 445.
[8] Agust G,Trine H S,Belinda L,et al.Effects of internal structure and local stresses on fracture propagation,deflection,and arrest in fault zones[J].Journal of Structural Geology,2010,32(11):1 643-1 655.
[9] 王思敬.论岩石的地质本质性及其岩石力学演绎[J].岩石力学与工程学报,2009,28(3):433-450. WANG Si-jing.Geological nature of rock and its deduction for rock mechanics[J].Chinese Journal of Rock Mechanics and Engineering,2009,28(3):433-450.
[10]徐志英.岩石力学[M].北京:中国水利水电出版社,1991. XU Zhi-ying.Rock mechanics[M].Beijing:China Water Power Press,1991.
[11]王如宾,徐卫亚,王 伟,等.坝基硬岩流变特性试验及其流变全过程中的渗流规律[J].岩石力学与工程学报,2010,29(5):960-969. WANG Ru-bin,XU Wei-ya,WANG Wei,et al.Experimental investigation on creep behaviors of hard rock in dam foundation and its seepage laws during complete process of rock creep[J].Journal of Rock Mechanics and Engineering,2010,29(5):960-969.
[12]王 欢,王 琪,张功成,等.琼东南盆地梅山组泥岩盖层封闭性综合评价[J].地球科学与环境学报,2011,33(2):152-158. WANG Huan,WANG Qi,ZHANG Gong-cheng,et al.Comprehensive evaluation on the sealing ability of mudstone caprock in meishan formation of Qiongdongnan Basin[J].Journal of Earth Sciences and Environment,2011,33(2):152-158.

相似文献/References:

[1]夏红春,程远平,柳继平.远程覆岩卸压变形及其渗透性研究[J].西安科技大学学报,2006,(01):10.[doi:10.3969/j.issn.1672-9315.2006.01.003]
 XIA Hong-chun CHENG Yuan-ping LIU Ji-ping.Deformation and permeability characteristics caused by pressure-relief of long-distance strata[J].Journal of Xi'an University of Science and Technology,2006,(01):10.[doi:10.3969/j.issn.1672-9315.2006.01.003]

备注/Memo

备注/Memo:
基金项目:中煤科工集团西安研究院创新基金项目(2013XAYCX008); 中煤科工集团有限公司面上项目(2014MS002); 国家自然科学基金青年科学基金项目(41402265) <
通讯作者:刘德旺(1972-),男,山西平遥人,高级工程师,E-mail:584033575@163.com
更新日期/Last Update: 2015-01-15