非开挖穿河工程对堤防稳定性影响评价
摘要:非开挖穿河工程对堤防稳定性的影响,主是管道施工在地层中形成的扰动带对地下水渗流场的影响;依据工程实例,在考虑高洪水位以及洪水对河道冲刷等不利因素的条件下,建立地下水流数值模拟模型计算地下水流场中最大水力坡度,利用临界水力坡度法,结合有关规范推荐的安全系数,对工程诱发渗透破坏的可能性,进行定量分析。
Abstract:Trenchless pipeline engineering will form an excavation disturbed zone around piping, and the zone will lead to groundwater flow variation and affect dyke safety. According to an actual engineering example, taking account of such unfavorable factors as highest flood stage and river channel erosion, a groundwater numerical simulation model is built for simulating the maximum groundwater hydraulic gradient. Based on the critical hydraulic gradient method and the safety coefficient recommended by relevant criterion, the quantitative analysis on the possibility of pipeline engineering induce infiltration destruction is study.
中文标题:
非开挖穿河工程对堤防稳定性影响评价
Evaluation on Dyke Safety Affected by Trenchless Pipeline Engineering
作者:
李治军
Li Zhijun
作者简介:李治军,1965年生,男,汉族,河南偃师人,大学本科,工学学士,高工,注册岩土工程师,主要从事岩土工程及水文地质科研与生产工作。E-mail:ahtyli@126.com
通讯地址:
山西省勘察设计研究院, 山西太原 030013
ShanxiProvinceresearchInstituteofInvestigationDesign,Taiyuan030013,Shanxi,China
中图分类号:TV223.6
出版物:岩土工程技术
收稿日期:2008-11-03
关键词:非开挖,设计洪水,渗透破坏,数值模拟
Key words:trenchless,design flood,infiltration destruction,numerical simulation
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