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赵德安, 王同军, 回玉萍, 陈志敏, 马周全. 宝中线大寨岭黄土高路堤滑坡整治综述[J]. 岩土工程学报, 2008, 30(8): 1248-1255.
引用本文: 赵德安, 王同军, 回玉萍, 陈志敏, 马周全. 宝中线大寨岭黄土高路堤滑坡整治综述[J]. 岩土工程学报, 2008, 30(8): 1248-1255.
ZHAO Dean, WANG Tongjun, HUI Yuping, CHEN Zhimin, MA Zhouquan. Summarization on control of subgrade landslide in Baoji-Zhongwei Railway[J]. Chinese Journal of Geotechnical Engineering, 2008, 30(8): 1248-1255.
Citation: ZHAO Dean, WANG Tongjun, HUI Yuping, CHEN Zhimin, MA Zhouquan. Summarization on control of subgrade landslide in Baoji-Zhongwei Railway[J]. Chinese Journal of Geotechnical Engineering, 2008, 30(8): 1248-1255.

宝中线大寨岭黄土高路堤滑坡整治综述

Summarization on control of subgrade landslide in Baoji-Zhongwei Railway

  • 摘要: 宝中铁路K154+200大寨岭黄土高路堤位于冲沟的堆填土之上,填土路堤高度达43 m。针对路基下沉和侧移病害曾两次采取不同方案进行整治,但未能彻底解决该高路堤边坡的蠕动滑移问题。2001年9月宝中线K154位置再次出现连续阴雨,线路左侧地面以及线路右侧坡面出现多处裂缝,线路下沉约100 mm,路基下沉约300 mm。同时,路堤护坡上出现了似泉眼的渗水现象。结合地质钻探、现场调查与试验等结果分析,认为水是该滑坡形成的主要原因,路堤病害定性为堆填土滑坡。在科研分析的基础上,根据对病害现象及形成原因的分析,决定采取抗滑桩支挡、路基下及滑带土注浆加固和设置立体排水系统等综合治理方案。工程实施后,经过近两年的运营检验和跟踪监测,证明整治效果良好。此工程实例对类似工程具有很好的参考价值。

     

    Abstract: The high loess subgrade of Baoji-Zhongwei Railway line lied on the filled gully.The height of the loess-filled subgrade was 43 m.The problems of creepage and slippage had occurred two times since the railway line had been in operation.The engineering treatments had been performed,but the problems were not solved.In September 2001,a heavy rain caused again the sliding of the slope.Cracks initiated in the ground on the left side of the railway line and in the slope on the right side of the railway line.The settlements of the railway line and the subgrade reached about 100 mm and 300 mm,respectively.The control of the landslide was introduced,including the research work and the engineering measures.It was shown that the disease was induced by underground water and due to the less compressed filled subgrade.Based on the analysis of the geological boring materials,in-situ investigations and the results of in-situ tests as well as laboratory tests,an integrated scheme for the disease treatment was adopted.The anti-sliding piles were used,the grout reinforcement under the subgrade and the sliding band were performed to increase the density of the soil,and a 3D drainage system was designed to release the underground water.It was shown by the monitoring of the displacement that the slope existed stably after the engineering treatment.The integrated method for prevention of landslides could be used in the similar landslide problem.

     

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