铁道建筑技术
鐵道建築技術
철도건축기술
RAILWAY CONSTRUCTION TECHNOLOGY
2014年
11期
39-42
,共4页
新建隧道%下穿隧道%控制爆破%监控量测
新建隧道%下穿隧道%控製爆破%鑑控量測
신건수도%하천수도%공제폭파%감공량측
new-built tunnel%underpassing a tunnel%controlled blasting%monitoring and measurement
以渝黔引入贵阳枢纽铁路龙宝冲隧道下穿6座已建及在建隧道工程为例，结合现场，详细分析、介绍了下穿隧道施工方案、原则、施工方法；提出了新建铁路隧道近距离下穿隧道交叉点附近施工爆破控制、防护方案，以及新建、既有隧道的监控量测、超前地质预报、安全性评估与评价等施工技术；解决了下穿隧道施工中既保证新建隧道施工安全，又保证既有隧道不受影响的问题。
以渝黔引入貴暘樞紐鐵路龍寶遲隧道下穿6座已建及在建隧道工程為例，結閤現場，詳細分析、介紹瞭下穿隧道施工方案、原則、施工方法；提齣瞭新建鐵路隧道近距離下穿隧道交扠點附近施工爆破控製、防護方案，以及新建、既有隧道的鑑控量測、超前地質預報、安全性評估與評價等施工技術；解決瞭下穿隧道施工中既保證新建隧道施工安全，又保證既有隧道不受影響的問題。
이투검인입귀양추뉴철로룡보충수도하천6좌이건급재건수도공정위례，결합현장，상세분석、개소료하천수도시공방안、원칙、시공방법；제출료신건철로수도근거리하천수도교차점부근시공폭파공제、방호방안，이급신건、기유수도적감공량측、초전지질예보、안전성평고여평개등시공기술；해결료하천수도시공중기보증신건수도시공안전，우보증기유수도불수영향적문제。
Based on the engineering example of Longbaochong Tunnel on the connection railway from Chongqing-Guizhou Rail to Guiyang Railway hub under 6 existing railway and railway under construction,combined with the field condition, construction scheme,principle,construction method for the construction underpassing tunnel are analyzed and introduced in detail;blasting control and protection scheme for blasting construction of the new railway tunnel underpassing the existing tunnel with a close distance near the intersection are put forward as well as the new and existing tunnel monitoring measure-ment,advance geological forecast,safety assessment and evaluation of construction technology.The construction underpass-ing tunnel can ensure the safety of the newly-built tunnel and ensure the tunnel is not affected.
