摘要
宝兰客专马鞍梁隧道下穿沟谷浅埋段地表常年流水,地下水渗透性强、补给条件好,施工中产生涌水的风险性大,并可能引起地表塌陷,因此拟订了地表井点降水及地表袖阀管注浆2种方案,并从工程风险、对周围环境的影响、工程投资等方面进行了全面比较分析,最终确定采用地表袖阀管注浆方案。
In the region of shallow-buried section passing under valley of Ma＇anliang tunnel on Baoji-Lanzhou passenger dedicated railway,there is perennial surface water and ground water.Good penetrability excellent water supply conditions result in high risk of gushing water during construction.More important,it may lead to surface subsidence.In this research,two construction schemes are compared in terms of construction risks,impact on surrounding environment and project investment.One is well-point dewatering,and the other is surface sleeve valve pipe grouting.Finally,the latter scheme is adopted.
作者
陈花顺
CHEN Huashun(China Railway First Survey and Design Institute Group Co.,Ltd.,Xi＇an Shaanxi 710043, China)
出处
《铁道建筑》
北大核心
2016年第12期46-48,52,共4页
Railway Engineering
关键词
浅埋段
井点降水
袖阀管注浆
隧道
施工方案
Shallow-buried section
Well-point dewatering
Sleeve valve pipe grouting
Tunnel
Construction scheme
作者简介
陈花顺（1981-），男，工程师。
