公路交通技术
公路交通技術
공로교통기술
TECHNOLOGY OF HIGHWAY AND TRANSPORT
2014年
2期
89-90,96
,共3页
公路隧道%岩溶%超前地质预报%处理
公路隧道%巖溶%超前地質預報%處理
공로수도%암용%초전지질예보%처리
highway tunnel%karst%advanced geological prediction%process
超前地质预报有助于提前了解掌子面前方围岩结构变化及可能的地质灾害情况,制定针对性的施工对策,修正施工方案以避免险情发生。鹰嘴岩隧道右线借鉴岩溶超前预报结果,采取小导管超前支护,I18工字钢架加强支护,清除岩溶洞穴内充填物,对溶腔进行回填处理,并预留排水通道的方法,以消除隐患。
超前地質預報有助于提前瞭解掌子麵前方圍巖結構變化及可能的地質災害情況,製定針對性的施工對策,脩正施工方案以避免險情髮生。鷹嘴巖隧道右線藉鑒巖溶超前預報結果,採取小導管超前支護,I18工字鋼架加彊支護,清除巖溶洞穴內充填物,對溶腔進行迴填處理,併預留排水通道的方法,以消除隱患。
초전지질예보유조우제전료해장자면전방위암결구변화급가능적지질재해정황,제정침대성적시공대책,수정시공방안이피면험정발생。응취암수도우선차감암용초전예보결과,채취소도관초전지호,I18공자강가가강지호,청제암용동혈내충전물,대용강진행회전처리,병예류배수통도적방법,이소제은환。
Advanced geological prediction contributes to understand structural changes of wall rock in front of tunnel face and possible geological disasters in advance, and to take targeted construction countermeasures and modify construction plan so as to avoid dangerous situations. For right line of Yingzuiyan Tunnel, this paper by reference to advanced prediction result adopts small duct leading support and reinforced support with I18 I-beam bracket to remove fills in karst cavities and processes karst chamber with backfilling and takes method of reserving drainage channels to eliminate hidden dangers.
