凫溪—金溪隧洞进口段土洞施工技术  

Soil Cave Construction Technique in the Entrance Section of Fuxi-Jinxin Tunnel

作　　者：刘关勇 项宏敏 

机构地区：[1]浙江省隧道工程公司,浙江杭州310005 [2]浙江东洲建设监理咨询有限公司,浙江杭州310012

出　　处：《西部探矿工程》2005年第5期110-112,共3页West-China Exploration Engineering

摘　　要：凫溪—金溪隧洞进口段的洞口段为土洞,是施工中的难点。土洞施工技术把土边坡支护、洞口加固、洞内钢拱架锚喷网联合支护视为一个有机整体。根据施工实践,详细介绍了施工中采取的施工技术以及达到的施工效果。Being soil cave, the entrance section of Fuxi-Jinxin tunnel is the difficulty area in construction. The soil cave construction technique regards the soil slope support, reinforcing the mouth of the cave and steel arch frame belt, grouting & mesh combined support in the cave as a organic whole. The adopted technique and obtainable effects in construction are introduced in detail based on construction practice.

关 键 词：洞口加固 钢拱架 超前锚杆 锚喷网 

分 类 号：U455.49[建筑科学—桥梁与隧道工程]