论文部分内容阅读
一、前言施溶溪2号滑坡位于焦枝铁路K622+650～K623+430施溶溪车站内,原为深20～30m的路堑,1975年开工,由于切割原古滑坡的舌部,引起山体坍滑,滑体长780m,宽300～400m,厚30～70m,体积约190万立方米(见图1)。经采取了椅式抗滑桩墙、抗滑挡墙、清方减载等综合整治措施,至1978年夏全部工程竣工,已经10年运营,情况良好。此外,为研究滑坡推力的变化及分布规律、桩身各部受力情况和岩土抗力分布规律等,进行了现场试验;同时为了验证现场试验成果进行了近两年的室内模型试验;均取得了较好的研究成果。本文仅就工程设计及现场试验情况作一介绍。室内模型试验,将另行总结。
I. Introduction Shi Rongxi No. 2 landslide is located in Jixi Railway K622 + 650 ~ K623 + 430 Shiqixi Station, originally a 20 ~ 30m deep cutting. Since it began its construction in 1975, due to the cutting of the tongue of the ancient landslide, Sliding slide, sliding body length 780m, width 300 ~ 400m, thickness 30 ~ 70m, volume of about 1.9 million cubic meters (see Figure 1). After the adoption of the chair anti-slide pile wall, anti-skid barrier, Qing Fang load reduction and other comprehensive improvement measures, to the summer of 1978 all the works completed, has been 10 years of operation, in good condition. In addition, field tests were conducted to study the variation and distribution of landslide thrust force, the stress distribution of various parts of the pile body and the distribution of soil resistance. In the meantime, indoor model tests were conducted in recent two years to verify the field test results. Better research results. This article only on the engineering design and field test to make an introduction. Indoor model test will be summarized separately.