河北水利电力学院学报

河北水利电力学院学报 ›› 2024, Vol. 34 ›› Issue (2): 54-58.DOI: 10.16046/j.cnki.issn2096-5680.2024.02.010

• 建筑工程专题 • 上一篇    下一篇

软土地基上贮灰场的防渗处理研究

赵静伊, 汪彪, 饶俊勇   

  1. 西南电力设计院有限公司发电工程公司,四川省成都市东风路16号 610021
  • 收稿日期:2023-06-29 修回日期:2024-02-27 出版日期:2024-06-30 发布日期:2024-07-03
  • 通讯作者: 汪 彪(1990-),男,陕西绥德人,高级工程师,主要研究方向为水工结构设计及岩土工程。E-mail:wangbiao@swepdi.com
  • 作者简介:赵静伊(1992-),女,四川成都人,工程师,主要研究方向为火电厂工程技术经济分析及评价。E-mail:463965331@qq.com

Research on Seepage Prevention of Ash Yardin Soft Soil

ZHAO Jingyi, WANG Biao , RAO Junyong   

  1. Southwest Electric Power Design Institute Co., Ltd., of CPECC, 610021, Chengdu, Sichuan, China
  • Received:2023-06-29 Revised:2024-02-27 Online:2024-06-30 Published:2024-07-03

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摘要： 为研究软土地基上贮灰场的防渗处理特性,分析软土地基沉降对防渗措施可能的影响,以东南亚某贮灰场为工程实例,采用Geo-Studio软件进行应力与渗流的耦合模拟分析。通过模拟分析软土地基上贮灰场的实际加载过程,得出了贮灰场不同区域各时段的沉降值。研究结果表明,该贮灰场的最大沉降差为3.7m,应重点关注最大沉降差区域防渗膜拉裂的可能;以1.5mm高密度聚乙烯防渗膜的渗流量为基准,10m深垂直防渗墙无法满足防渗要求,只有完全截断渗流通道时,垂直防渗墙可满足要求,但费用较高。

关键词: 软土地基, 贮灰场, 防渗处理, 数值分析

Abstract: To study the seepage prevention of ash yard in soft soil, analyse the influence of settlement to the the seepage prevention, taking an ash yard in Southeast Asian country as the engineering example, a coupled analysis model of seepage field and stress field is formed by Geo-studio. By simulating the actual surcharge scheme of ash yard, the settlement of different area at different time are obtained. The results show that the maximum differential settlement in this project is 3.7m, the seepage prevention in this area should be focused on. Based on the seepage flow of 1.5mm high density polyethylene(HDPE), the 10m vertical cutoff wall cannot meet the requirement. Only when the flow channel has be cut, the vertical cutoff wall can meet the requirement, but it requires a higher cost.

Key words: soft soil, ash yard, seepage prevention, numerical simulation

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