摘要
常德市鼎城区善卷垸防洪大堤治理工程存在顶冲和管涌不良地质现象。本文分析了大堤的渗漏及渗透稳定性、粉细砂的震动液化等问题,提出高压旋喷灌浆、填筑压浸平台、长螺旋灌注桩、护坡、护脚等处理措施,并详细阐述了高压旋喷灌浆的加固原理和施工工艺以及长螺旋灌注桩的施工工艺、常见质量问题和防治措施,可为同类工程提供借鉴。
Changde Dingcheng District Shanjuanyuan flood control dam treatment project has bad geological phenomenon such as overtopping and piping surge. Seepage and seepage stability,vibration liquefaction of silty sand as well as other foundation problems are analyzed in the paper. High-pressure rotary spray irrigation pulp,filling pressure leaching platform,long spiral pouring pile, slope protection, protection foot and other processing measures are proposed.Reinforcement principle,and construction technology of high-pressure spraying grouting,construction technology and long screw cast-in-place pile construction technology,common quality problems and control measures are described in details,thereby providing reference for similar projects.
作者
孙林
Sun Lin(Hunan Xingyu Construction Co.,Ltd.,Changde 415000,China)
出处
《水利建设与管理》
2018年第8期18-21,共4页
Water Conservancy Construction and Management
关键词
大堤
地基
高压旋喷灌浆
长螺旋灌注桩
embankment
foundation
high pressure rotary spray grouting
long screw cast-in-place pile
