STUDY OF IMPERMEABILITY OF ROCK STRATUM BASED ON WATER INJECTIION TEST
HUANG Zhen1，JIANG Zhenquan1，CAO Dingtao2，LI Ting3
(1. School of Resources and Earth Science，China University of Mining and Technology，Xuzhou，Jiangsu 221116，China； 2. Yanzhou Coal Mining Co.，Ltd.，Zoucheng，Shandong 273500，China；3. Baodian Coal Mine，Yanzhou Coal Mining Co.，Ltd.，Zoucheng，Shandong 272100，China)
Abstract：Water injection test is a particularly useful technique to determine the impermeability of rock stratum. Based on Baodian coal mine，the data of water injection test were obtained and permeability coefficient of floor rock were deduced through high pressure water injection test. Based on the analysis of data，the results show that the curves of permeability coefficient and pressure are provided with a significant segmentation，which is stable before fracturing pressure and shows linear relationship with high regression coefficient after fracturing pressure. The relationship between permeability coefficient and water discharge is close to linear. Results show that if water discharge continue to rise，the permeability coefficient tends to increase；the impermeability of floor rock stratum can be judged by the calculated results of the critical impermeability strength. The result of the impermeability from highest to lowest is mudstone，siltstone，fine sandstone，limestone. The results make a important reference for safety-mining of follow-up working face.
黄 震1，姜振泉1，曹丁涛2，李 廷3. 基于钻孔压水试验的岩层阻渗能力研究[J]. 岩石力学与工程学报, 2014, 33(S2): 3573-3580.
HUANG Zhen1，JIANG Zhenquan1，CAO Dingtao2，LI Ting3. STUDY OF IMPERMEABILITY OF ROCK STRATUM BASED ON WATER INJECTIION TEST. , 2014, 33(S2): 3573-3580.
肖建于，童敏明，姜春露. 基于模糊证据理论的煤层底板突水量预测[J]. 煤炭学报，2012，37(增1)：131-137.(XIAO Jianyu，TONG Minming，JIANG Chunlu. Prediction of water inrush quantity from coal floor based on fuzzy evidence theory[J]. Journal of China Coal Society，2012，37(Supp.1)：131-137.(in Chinese))
[2]
煤炭科学研究总院西安分院. 华北性煤矿岩溶水综合防治工业性试验研究报告[R]. 西安：煤炭科学研究总院西安分院，1996.(Xi¢an Branch of China Coal Research Institute. The research on comprehensive control of karst water in Northern China[R]. Xi¢an：Xi¢an Branch of China Coal Research Institute，1996.(in Chinese))
[3]
徐智敏，孙亚军，巩思园，等. 高承压水上采煤底板突水通道形成的监测与数值模拟[J]. 岩石力学与工程学报，2012，31(8)：1698- 1704.(XU Zhimin，SUN Yajun，GONG Siyuan，et al. Monitoring and mumerical simulation of formation of water inrush pathway caused by coal ming above confined water with high pressure[J]. Chinese Journal of Rock Mechanics and Engineering，2012，31(8)：1698-1704.(in Chinese))
[4]
虎维岳，尹尚先. 采煤工作面底板突水灾害发生的采掘扰动力学机制[J]. 岩石力学与工程学报，2010，29(增1)：1698-1704.(HU Weiyue，YIN Shangxian. Dynamic mechanism of water inrush form floor of mining face[J]. Chinese Journal of Rock Mechanics and Engineering，2010，29(Supp.1)：1698-1704.(in Chinese))
[5]
国家煤矿安全监察局. 煤矿防治水规定[M]. 北京：煤炭工业出版社，2009：56-57.(State Administration of Coal Mine Safety of China. Regulations on prevention and control of coal mine water[M]. Beijing：China Coal Industry Publishing House，2009：56-57.(in Chinese))
[6]
王环玲，徐卫亚，杨圣奇. 岩石变形破坏过程中渗透率演化规律的试验研究[J]. 岩土力学，2006，27(10)：1703-1708.(WANG Huanling，XU Weiya，YANG Shengqi. Experimental investigation on permeability evolution law during course of deformation and failure of rock specimen[J]. Rock and Soil Mechanics，2006，27(10)：1703-1708.(in Chinese))
[7]
孙明贵，黄先伍，李天珍，等. 石灰岩应力-应变全过程的非Darcy流渗透特性[J]. 岩石力学与工程学报，2006，25(3)：484-491.(SUN Minggui，HUANG Xianwu，LI Tianzhen，et al. Seepage properties of non-Darcy flow in complete failure process limestone[J]. Chinese Journal of Rock Mechanics and Engineering，2006，25(3)：484-491.(in Chinese))
[8]
陈卫忠，杨建平，伍国军，等. 低渗透介质渗透性试验研究[J]. 岩石力学与工程学报，2008，27(2)：236-243.(CHEN Weizhong，YANG Jianping，WU Guojun，et al. Experimental study on permeability in low permeability media[J]. Chinese Journal of Rock Mechanics and Engineering，2008，27(2)：236-243.(in Chinese))
[9]
ZHU SY，JIANG ZQ，HOU HL，et al. Analytical model and application of stress distribution on mining coal floor[J]. Journal ofChina University ofMingandTechnology，2008，18(1)：13-17.(in Chinese))
[10]
中华人民共和国行业标准编写组. SL31—2003水利水电工程钻孔压水试验规程[S]. 北京：水利水电出版社，2003.(The Professional Standards Compilation Group of People¢s Republic of China.SL31—2003Code of water pressure test in borehole for water resources and hydropower engineering[S]. Beijing：Water Resources and Electric Power Press，2003.(in Chinese))
[11]
张新敏，蒋中明，冯树荣，等. 岩体高压压水试验的渗透系数取值方法探讨[J]. 水利发电学报，2011，30(1)：155-159.(ZHANG Xinmin，JIANG Zhongming，FENG Shurong，et al. Study on the determination of permeability coefficient of fractured rock mass under pressure test condition[J]. Journal of Hydroelectric Engineer，2011，30(1)：155-159.(in Chinese))
[12]
蒋中明，傅胜，李尚高，等. 高压引水隧道陡倾角断层岩体高压压水试验研究[J]. 岩石力学与工程学报，2007，26(11)：2318-2323.(JIANG Zhongming，FU Sheng，LI Shanggao，et al. High pressure permeability test on hydtaulic tunnel with steep obliquity faults under high pressure[J]. Chinese Journal of Rock Mechanics and Engineering，2007，26(11)：2318-2323.(in Chinese))
[13]
姜振泉，季梁军，左如松，等. 岩石在伺服条件下的渗透性与应变、应力的关联性特征[J]. 岩石力学与工程学报，2002，21(10)：1442- 1446.(JIANG Zhenquan，JI Liangjun，ZUO Rusong，et al. Correlativityamong rock permeability and strain，stress under servo-control condition[J]. Chinese Journal of Rock Mechanics and Engineering，2002，21(10)：1442-1446.(in Chinese))
[14]
左如松，朱岩华，姜振泉. 岩石临界抗渗强度的测定及其在工程中的应用[J]. 煤田地质与勘探，2002，30(6)：38-40.(ZUO Rusong，ZHU Yanhua，JIANG Zhenquan. The acquisition of critical anti-permeability strength of rock and its application in engineering[J]. Coal Geology and Exploration，2002，30(6)：38-40.(in Chinese))
2014, Vol. 33 
