国防交通工程与技术
國防交通工程與技術
국방교통공정여기술
TRAFFIC ENGINEERING AND TECHNOLOGY FOR NATIONAL DEFENCE
2011年
6期
55-58
,共4页
隧道施工%第三系粉细砂岩%二次支护%水平旋喷桩%帷幕注浆
隧道施工%第三繫粉細砂巖%二次支護%水平鏇噴樁%帷幕註漿
수도시공%제삼계분세사암%이차지호%수평선분장%유막주장
construction of tunnels%third-system fine sandy rock%secondary support%level-swivel-sprayed pile%heavy-curtain jetting
胡麻岭隧道3#、4#斜井和隧道正洞区段穿越第三系弱胶结粉细砂岩,由于地层岩性软,地下水丰富,施工中涌水、流砂、掌子面泥化现象明显,施工难度极大。介绍了施工中所采用的降水、围岩加固、加强支护等措施和方法,有效保证了工期和施工质量。施工经验可供同类工程参考。
鬍痳嶺隧道3#、4#斜井和隧道正洞區段穿越第三繫弱膠結粉細砂巖,由于地層巖性軟,地下水豐富,施工中湧水、流砂、掌子麵泥化現象明顯,施工難度極大。介紹瞭施工中所採用的降水、圍巖加固、加彊支護等措施和方法,有效保證瞭工期和施工質量。施工經驗可供同類工程參攷。
호마령수도3#、4#사정화수도정동구단천월제삼계약효결분세사암,유우지층암성연,지하수봉부,시공중용수、류사、장자면니화현상명현,시공난도겁대。개소료시공중소채용적강수、위암가고、가강지호등조시화방법,유효보증료공기화시공질량。시공경험가공동류공정삼고。
The third and fourth oblique shafts and the section of the main body of the Humaling Tunnel go through the third system under-cemented fine-powdered sandy rock stratum,where the rock of the stratum is soft and underground water is rich,owing to which gush of underground water and flowing sand arise here and there,and the slurrying phenomenon of the work face is obvious,which make the construction extremely difficult.Introduced in the paper are technical measures and methods related to draining underground water,solidifying the surrounding rock and strengthening the support,etc.,all of which help ensure the construction duration and quality.The experience of the project may serve as a useful reference for other projects of the same type.
