强膨胀特性软岩边坡处理技术  

Treatments to Side Slope of Expansive Soft Rock

作　　者：林英姿[1] 陈建平[2] 王清[2] 刘志伟[3] 

机构地区：[1]吉林建筑工程学院环境工程系,长春130021 [2]吉林大学建设工程学院,长春130026 [3]吉林建筑工程学院基础科学系,长春130021

出　　处：《吉林建筑工程学院学报》2005年第3期1-5,共5页Journal of Jilin Architectural and Civil Engineering

摘　　要：针对长珲一级公路敦化至延吉段12标段内K 111+300～K 111+750大挖方段(挖深达21 m)边坡为强风化、强膨胀特性的软岩,极易发生滑坡地质灾害.结合现场勘测地质资料和延吉盆地几处滑坡工程实例,采取了锚管桩、预应力锚索、框架梁复合支护方案,对开挖边坡进行了综合处理,同时,也开创了预应力锚索在我省高等级公路建设中边坡特殊防护处理的先河.This paper deals with the treatments to the poor geological conditions of the No. 12 Contract Section of Dunhua-Yanji section, which belongs to the Chang- Hui 1st grade highway. Within this section, the K111 ＋ 300-K111 ＋ 350 segment is of deep excavation （a maximum of 21m） with weathered and expansive soft rock side slope. Based on the in - situ geological investigations and landslide precedents occurred in Yanji basin, tubular anchor piles, prestressed anchor ropes and frame beams are to utilize in the excavation. And this technique makes the forerunner of slope protection for high - quality highway construction in the province.

关 键 词：软岩边坡 锚管桩 分散压缩型锚索 框架梁 

分 类 号：TU47[建筑科学—结构工程]