路基工程Issue(6)：225-229,5.DOI:10.13379/j.issn.1003-8825.2017.06.47
合肥地铁单线膨胀土浅埋暗挖隧道预加固措施研究
Study on Pre-reinforcement Measures of Shallow-buried Excavation tunnel of Single-line Subway Passing through Expansive Soil in Hefei
舒东利 1谢文强 2王明年3
作者信息
- 1. 中国中铁二院工程集团有限责任公司,成都610031
- 2. 中铁二局第二工程有限公司,成都610031
- 3. 西南交通大学交通隧道工程教育部重点实验室,成都610031
- 折叠
摘要
Abstract
The shallow-buried excavation tunnel in the end of test section to Yungu road station of Hefei metro line 1 passes through expansive soil.Due to the poor expansive engineering characteristics,such as swellshrink characteristic and cranny property,it will affect the tunnel construction.Reasonable pre-reinforcement measures can effectively reduce the impact.Forepoling bolt,advanced small pipe grouting and pipe roof are always used in small span expansive soil tunnel.The effect of advanced small pipe grouting on the stability of tunnel is analyzed through numerical calculation and advanced small pipe grouting is not suggested in shallowburied excavation tunnel in Hefei.关键词
膨胀土/浅埋暗挖隧道/预加固措施/超前小导管注浆/地表沉降Key words
expansive soil/shallow-buried excavation tunnel/pre-reinforcement measures/advanced small pipe grouting/ground settlement分类
交通工程引用本文复制引用
舒东利,谢文强,王明年..合肥地铁单线膨胀土浅埋暗挖隧道预加固措施研究[J].路基工程,2017,(6):225-229,5.
