某电厂黄土超高边坡工程问题分析与研究
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- 英文论文题名：ENGINEERING PROBLEM ANALYSIS AND RESEARCH OF EXTRA-HIGH LOESS SLOPE OF A POWER PALANT
- 论文作者：鄢治华 ; 刘志伟 ; 李同录
- 英文论文作者：YAN Zhihua ; LIU Zhiwei ; LI Tonglu ; Northwest Electric Power Design Institute of China Power Engineering Consulting Group ; School of Geology Engineering and Geomatics ; Chang'an University
- 年：2017
- 作者机构：中国电力工程顾问集团西北电力设计院有限公司;长安大学地质工程与测绘工程学院;
- 论文关键词：黄土 ; 超高边坡 ; 应力应变分析 ; 稳定性计算及可靠度分析
- 英文论文关键词：loess ; extra-high slope ; analysis of stress and strain ; the stability calculation and reliability analysis
- 会议召开时间：2017-04-18
- 会议录名称：2017年第九届边坡工程大会论文集
- 语种：中文
- 分类号：TU444
- 学会代码：ZJKC
- 会议名称：2017年第九届边坡工程大会
- 会议地点：中国浙江宁波
- 主办单位：中国建筑学会工程勘察分会
- 学会名称：中国建筑学会工程勘察分会
- 页数：7
- 文件大小：1176k
- 原文格式：D
- 会议级别：全国
摘要
某电厂工程场地位于陇东黄土高原的西部,场地整平后将形成最大高度150m以上的人工开挖边坡,挖方边坡上主要分布Q_3~Q_1黄土、古土壤,下部为白垩纪泥岩。该边坡能否治理及治理方案的选择将对厂址选择、厂区总平面布置及竖向布置,土方回填和开挖产生影响。本研究通过多种手段和方法获得了可靠的边坡岩土体物理力学指标。通过3D模型及应力应变分析了边坡的变形破坏机理。通过稳定性计算及可靠度分析提出了满足安全、可靠度高、经济适用的总体放坡坡比。并对坡面防护、排水方案设计提出了合理的建议。
The power plant is located in the western part of LongDong loess plateau. A slope with maximum height above 150 m will form after artificial excavation(site levelling). Loess of Q3 to Q1 and cretaceous mudstone were found in the site.The treatment scheme of the slope will affect the plant general layout and vertical layout of the power plant, and will affect the work amount of backfilling and excavation, and will affect the choice of the site. Variety of means and methods were used to obtain the reliable physical and mechanical indexes of the soils and rock. The 3D modelling and stress and strain analysis were used to obtain the deformation and failure mechanism of the slope.Slope ratio that meet the requirement of safety reliability and economy was proposed through stability calculation and reliability analysis. Reasonable suggestions of surface protection and drainage design were proposed.
The power plant is located in the western part of LongDong loess plateau. A slope with maximum height above 150 m will form after artificial excavation(site levelling). Loess of Q3 to Q1 and cretaceous mudstone were found in the site.The treatment scheme of the slope will affect the plant general layout and vertical layout of the power plant, and will affect the work amount of backfilling and excavation, and will affect the choice of the site. Variety of means and methods were used to obtain the reliable physical and mechanical indexes of the soils and rock. The 3D modelling and stress and strain analysis were used to obtain the deformation and failure mechanism of the slope.Slope ratio that meet the requirement of safety reliability and economy was proposed through stability calculation and reliability analysis. Reasonable suggestions of surface protection and drainage design were proposed.
引文
[1]李萍.黄土边坡可靠性研究[D].西安:长安大学博士论文.2006年.
[2]南亚林.黄土地区土性参数的统计分析及在公路边坡中的应用[D].西安:长安大学.2006年.
[3]刘强.山西某高速公路沿线黄土高边坡开挖卸荷前后稳定性变化规律研究[D].西安:西北大学,2012年.
[4]徐国民,胡剑功.影响边坡支护结构形式选择的多因素分析[J].工程地质学报,2008,16(Suppl.):506-512.
[5]王俊卿,李靖,李琦,陈立.黄土高边坡稳定性影响因素分析——以宝鸡峡引水工程为例[J].岩土力学,2009,30(7):2114-2118.
[2]南亚林.黄土地区土性参数的统计分析及在公路边坡中的应用[D].西安:长安大学.2006年.
[3]刘强.山西某高速公路沿线黄土高边坡开挖卸荷前后稳定性变化规律研究[D].西安:西北大学,2012年.
[4]徐国民,胡剑功.影响边坡支护结构形式选择的多因素分析[J].工程地质学报,2008,16(Suppl.):506-512.
[5]王俊卿,李靖,李琦,陈立.黄土高边坡稳定性影响因素分析——以宝鸡峡引水工程为例[J].岩土力学,2009,30(7):2114-2118.