摘要
北京朝阳北路热力暗挖隧道工程,场区内地下水丰富且水位较高;现场不具备地面降水条件,需要采取全断面注浆止水的施工技术。为此在全线选取5处不同水文地质的路段进行试验,现场取土样进行施工配合比试验,再进行现场试验段施工。研究了一套适合富水地层的注浆止水施工参数,使热力暗挖隧道施工符合绿色城市建设的需要。
The heat supply pipeline mined tunnel project on Chaoyang North Road of Beijing is located on an area where underground water is rich and underground water level is high, and ground dewatering is infeasible, so full-face grouting water stop technique shall be adopted. Five road stretches having different hydrogeological conditions are tested and soil is sampled on field for mixing proportion test before construction of each test stretch. A set of parameters applicable to grouting water stop construction in water-rich stratum are studied to guarantee that heat supply pipeline mined tunnel construction satisfies the requirements of green urban construction.
出处
《建筑技术》
2014年第7期602-604,共3页
Architecture Technology
关键词
隧道工程
浅埋暗挖
全断面注浆
试验研究
tunnel project
shallow buried mined excavation
full-face grouting
test and research
