质量缺陷及粉化破裂立井井壁治理措施
|
摘要
济宁二号煤矿副立井存在井壁质量缺陷、粉化、渗漏等问题,严重威胁井筒作业人员及装备的安全。采用调查、现场检测、水质等分析发现,井壁混凝土浇筑质量控制不佳、井壁出水是井壁缺陷、粉化的主要原因,针对井壁的现状制定了"渗漏水点化学注浆封堵+缺陷及粉化区域锚网喷修复+井壁壁面硅烷浸渍防腐"的总体治理方案,目前井壁已完成修复近1年时间,没有发生新生粉化、渗漏现象。
The defects, cracks, and leakage of the shaft wellbore in Jining No.2 Coal Mine seriously threaten the safety of wellbore operators and equipment. The investigation, field test and water quality were used to show that the poor quality control of concrete pouring in the well wall and the water outlet of the well wall are the main reasons for the defect and fracture of the well wall. In this paper, the overall treatment plan of "leakage point chemical grouting sealing + defect area anchor net injection repair + wall surface silane impregnating corrosion"is developed. At present, the well wall has been repaired for nearly a year, and no new ruptures or leakage occurred. The experience can be used for similar projects.
The defects, cracks, and leakage of the shaft wellbore in Jining No.2 Coal Mine seriously threaten the safety of wellbore operators and equipment. The investigation, field test and water quality were used to show that the poor quality control of concrete pouring in the well wall and the water outlet of the well wall are the main reasons for the defect and fracture of the well wall. In this paper, the overall treatment plan of "leakage point chemical grouting sealing + defect area anchor net injection repair + wall surface silane impregnating corrosion"is developed. At present, the well wall has been repaired for nearly a year, and no new ruptures or leakage occurred. The experience can be used for similar projects.
引文
[1]张鹏.工业广场煤柱开采井筒损害特征及治理技术研究[D].焦作:河南理工大学,2009.
[2]涂心彦.新义煤矿副井井壁治理技术研究[D].徐州:中国矿业大学,2008.
[3]蔡海兵,程桦,姚直书,等.双卸压槽法修复破裂井壁的试验研究[J].煤矿安全,2010,41(1):16-19.
[4]徐光济.潘一东风井淹井修复经验[J].煤炭科学技术,1983(9):7-10.
[5]栾元重,王宜振.金桥煤矿井筒变形实时测量与井筒破坏突变模型[J].河南理工大学学报(自然科学版),2001,20(2):90-93.
[6]崔广心,杨维好,吕恒林.深厚表土层中的冻结壁和井壁[M].徐州:中国矿业大学出版社,1998.
[7]杨维好,崔广心,周国庆,等.特殊地层条件下井壁破裂机理与防治技术的研究(之一)[J].中国矿业大学学报,1996(4):1-5.
[8]赵力.硫酸盐环境中立井井壁混凝土腐蚀劣化特征及机理研究[D].北京:北京科技大学,2018.
[9]刘娟红,卞立波,何伟,等.煤矿矿井混凝土井壁腐蚀的调查与破坏机理[J].煤炭学报,2015,40(3):528.
[10]周廷定.顺和煤矿副井井壁腐蚀破坏机理与防治措施研究[D].徐州:中国矿业大学,2015.
[11]赵力,宋少民,刘娟红,等.硫酸盐腐蚀与冻融共同作用下井壁混凝土损伤劣化研究[J].煤矿安全,2017,48(7):57-61.
[12]王原原.硅烷浸渍混凝土性能研究及寿命预测模拟分析[D].济南:山东大学,2016.
[13]朱淮军.硅烷浸渍技术在高性能混凝土中的防腐保护效果[J].混凝土,2009(10):126-128.
[14]熊建波,王胜年,吴平.硅烷浸渍剂对混凝土保护作用的研究[J].混凝土,2004(9):63-65.
[2]涂心彦.新义煤矿副井井壁治理技术研究[D].徐州:中国矿业大学,2008.
[3]蔡海兵,程桦,姚直书,等.双卸压槽法修复破裂井壁的试验研究[J].煤矿安全,2010,41(1):16-19.
[4]徐光济.潘一东风井淹井修复经验[J].煤炭科学技术,1983(9):7-10.
[5]栾元重,王宜振.金桥煤矿井筒变形实时测量与井筒破坏突变模型[J].河南理工大学学报(自然科学版),2001,20(2):90-93.
[6]崔广心,杨维好,吕恒林.深厚表土层中的冻结壁和井壁[M].徐州:中国矿业大学出版社,1998.
[7]杨维好,崔广心,周国庆,等.特殊地层条件下井壁破裂机理与防治技术的研究(之一)[J].中国矿业大学学报,1996(4):1-5.
[8]赵力.硫酸盐环境中立井井壁混凝土腐蚀劣化特征及机理研究[D].北京:北京科技大学,2018.
[9]刘娟红,卞立波,何伟,等.煤矿矿井混凝土井壁腐蚀的调查与破坏机理[J].煤炭学报,2015,40(3):528.
[10]周廷定.顺和煤矿副井井壁腐蚀破坏机理与防治措施研究[D].徐州:中国矿业大学,2015.
[11]赵力,宋少民,刘娟红,等.硫酸盐腐蚀与冻融共同作用下井壁混凝土损伤劣化研究[J].煤矿安全,2017,48(7):57-61.
[12]王原原.硅烷浸渍混凝土性能研究及寿命预测模拟分析[D].济南:山东大学,2016.
[13]朱淮军.硅烷浸渍技术在高性能混凝土中的防腐保护效果[J].混凝土,2009(10):126-128.
[14]熊建波,王胜年,吴平.硅烷浸渍剂对混凝土保护作用的研究[J].混凝土,2004(9):63-65.