摘要
延边地区近年来因公路修建,频频出现边坡滑动和严重变形工程问题。研究发现,引起公路边坡滑动和变形的主要原因是该地区广泛发育一种膨胀性软岩,它具有富含膨胀性粘土颗粒、强度低、易崩解、膨胀性强、膨胀力大的工程特性。在此基础上,应用大变形设计方法,提出了加强排水、高压注浆锚管桩预加固、压力分散型锚索加固和预防底臌锚管桩等适宜于软岩边坡加固的方法。
The engineering problems--slope sliding and serious deformation in Yanji basin occurred frequently during the construction of highways. The results of research show that the main factor causing the slope sliding and deformation is that there is a kind of swelling soft rock well distributing and developing in the area. This soft rock contains much more particles of swelling clay characterized by low strength, easy disintegration, strong swelling and high swelling forces. In accordance with such characteristics of soft rock, the author presents the reinforcement means and countermeasures for the soft rock slope with the large-deformation design method, those are strong drainage, pre-reinforcement using high pressure anchor grouting piles, reinforcement using anchor cables with dispersive pressure, preventing bottom swelling using anchor piles and so on.
出处
《吉林大学学报（地球科学版）》
EI
CAS
CSCD
北大核心
2005年第4期496-500,共5页
Journal of Jilin University：Earth Science Edition
基金
国家杰出青年基金项目(59825114)
国家基金委创新研究群体基金项目(50221402)
关键词
膨胀性软岩
强度
边坡加固
大变形设计方法
swelling soft-rock
strength
reinforcement means
large deformation design theory
