摘要
隧洞的开挖一般在岩石坡面进行,在富含水地层、平整地面上,以大开挖的施工方式进洞,地质条件复杂。以柴河水库隧洞工程为例,在满足主隧洞线路情况下,提出三种可行性方案:全边坡阻水帷幕;开挖后加长明洞再回填的方法;开挖后施做混凝土暗涵。通过对比,选取大开挖结合加长明洞再回填作为最终方案,实现了支洞布置。
Tunnel excavation is generally carried out in the rock slope. For the water-rich formation and the ground formation, the large excavation of construction methods is being into the hole and the geological conditions are complex. Taking Chaihe reservoir tunnel project as an example, under the condition of satisfying the main tunnel line, three feasible schemes are put forward： the whole slope water-blocking curtain; the method of adding Chang-Ming-dong and backfilling after excavation, concrete dark culvert after excavation. By contrast, the final selection of large excavation combined with the Chang-ming-dong backfill as the most reasonable program to achieve the branch hole layout.
出处
《陕西水利》
2018年第1期118-120,共3页
Shaanxi Water Resources
关键词
隧洞
大开挖
复杂地质条件
方案对比
Tunnel, the large excavation, the complex geological condition and contrast among the schemes
