凤凰临时余泥渣土场高填方边坡整治工程

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英文篇名：Slope Stability Mitigation in Fenghuang Temporary Construction Waste Soil Receiving Yard 作者：易恒 ; 莫进丰 ; 杨学文 英文作者：YI Heng;MO Jinfeng;YANG Xuewen;Shenzhen Geotechnical Investigation &Surveying Institute Group Co.Ltd.; 关键词：深厚填土 ; 高边坡 ; 抗滑桩 ; 修坡绿化 英文关键词：high and thickfills;;high slopes;;anti-slide caissons;;slope vegetations 中文刊名：土工基础 英文刊名：Soil Engineering and Foundation 机构：深圳市勘察测绘院(集团)有限公司; 出版日期：2019-08-15 出版单位：土工基础 年：2019 期：04 语种：中文; 页：45-49 页数：5 CN：42-1151/TU ISSN：1004-3152 分类号：TU43

摘要

凤凰临时余泥渣土受纳场内大规模堆填深厚填土及填石层,堆填时间约2～3年,尚未完成自重固结,且其组成成分差异很大,分布极不均匀,经堆填形成的40～60m的高边坡处于基本稳定状态。由于余泥渣土层与下部坡残积土的物理力学性质差异性大,在强降雨条件下形成地下水集中带,构成连续性好的软弱滑移面,边坡极易产生滑坡或崩塌等地质灾害。系统介绍了该渣土场受土的变化历程,阐述了边坡整治的总体设计方案,主要包括增加抗滑桩、修坡与坡面绿化以及完善排水系统相结合的综合整治措施。工程取得了良好治理效果,对类似深厚填土边坡治理工程有一定参考意义。
        In the Fenghuang temporary construction waste soil receiving yard,a large amount of construction waste soil and rock were piled for approximate two to three years and it is found that these waste soil and rock fills are currently still settling under the self-weight.The soil and rock across the receiving yard of 40 to 60 meters high are not homogeneous with a significant difference in the grain size and material properties.The upper waste soils and the original colluvial residual soils are also different in engineering properties.Under the heavy precipitations,apotential weak zone is easily developed at the boundary zone between the original soil and waste soils due to the accumulation of groundwater and triggers the geohazards,such as,landslides and local slides.This paper presents of case study of waste soil slope remediation after a brief introduction of the evolution of the waste soil receiving yard.The slope mitigation measures included anti-slide caissons,slope surface treatment,surface vegetation and improvement of drainage system.

引文

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