现代隧道技术
現代隧道技術
현대수도기술
Modern Tunnelling Technology
2015年
5期
178-183
,共6页
孙克国%李术才%许炜萍%龚伦
孫剋國%李術纔%許煒萍%龔倫
손극국%리술재%허위평%공륜
岩溶涌水%注浆堵水%地质灾害%防控技术
巖溶湧水%註漿堵水%地質災害%防控技術
암용용수%주장도수%지질재해%방공기술
Karst water inflow%Water blocking by grouting%Geological disaster%Prevention and control technology
岩溶隧道涌水地质灾害严重妨碍正常施工,文章以封堵齐岳山隧道底板岩溶涌水为工程实例,对注浆堵水防控技术进行了研究. 在充分了解岩溶涌水区域水文地质特征的基础上, 树立了注浆区域探测先行的防控理念,借助高精度无损探测技术和高密度地质钻孔手段,掌握了被注介质管道分布和岩溶水径排路径,使注浆孔设计和浆材选择有的放矢. 在实际的注浆工作中,总结了浅层化学注浆的失败经验,优化了化学注浆浆液的功能,及时调整注浆设计和实施方案,最终采用水泥浆液进行深层注浆并取得了堵水成功,注浆过程及方案调整对类似隧道工程的底板涌水具有借鉴意义.
巖溶隧道湧水地質災害嚴重妨礙正常施工,文章以封堵齊嶽山隧道底闆巖溶湧水為工程實例,對註漿堵水防控技術進行瞭研究. 在充分瞭解巖溶湧水區域水文地質特徵的基礎上, 樹立瞭註漿區域探測先行的防控理唸,藉助高精度無損探測技術和高密度地質鑽孔手段,掌握瞭被註介質管道分佈和巖溶水徑排路徑,使註漿孔設計和漿材選擇有的放矢. 在實際的註漿工作中,總結瞭淺層化學註漿的失敗經驗,優化瞭化學註漿漿液的功能,及時調整註漿設計和實施方案,最終採用水泥漿液進行深層註漿併取得瞭堵水成功,註漿過程及方案調整對類似隧道工程的底闆湧水具有藉鑒意義.
암용수도용수지질재해엄중방애정상시공,문장이봉도제악산수도저판암용용수위공정실례,대주장도수방공기술진행료연구. 재충분료해암용용수구역수문지질특정적기출상, 수립료주장구역탐측선행적방공이념,차조고정도무손탐측기술화고밀도지질찬공수단,장악료피주개질관도분포화암용수경배로경,사주장공설계화장재선택유적방시. 재실제적주장공작중,총결료천층화학주장적실패경험,우화료화학주장장액적공능,급시조정주장설계화실시방안,최종채용수니장액진행심층주장병취득료도수성공,주장과정급방안조정대유사수도공정적저판용수구유차감의의.
The inflow of water may seriously affect normal construction of karst tunnels, therefore the grouting techniques for preventing water inflow in karst tunnels were examined using the Qiyueshan tunnel with water in-flow at the floor as an example. Specifically, the concept of "probing before grouting" was proposed based on full knowledge of the hydrogeological characteristics of the water inflow area, and the karst channel distribution and the water runoff path were obtained by high-precision nondestructive detection and high-density geological drilling. During grouting, the chemical grout function was optimized by implementing lessons learned from the shallow chemical grouting, and the grouting schemes were adjusted in time to achieve successful deep grouting using cement mortar.