施工技术 2011年10月下 62 CONSTRUCTION TECHNOLOGY 第40卷第351期 改进型轻型井点降水技术及其应用 张建平，陈璐，黎伟锋，王付祥 (惠州市水电建筑工程有限公司，广东惠州516001) [摘要]传统轻型井点降水存在造孔成井慢、大功率大流量水泵无法适应、排水效果不理想、造井材料不能重复利 用、对原有水环境影响大等缺点.在传统轻型井点降水方法的基础上进行改性创新，采用小型化、轻型化设备和材 料，且可周转使用，处理后基坑内无渗流和明水，边坡稳定，降水影响范围也显著减小，保证了周边建筑的安全.与 传统轻型井点降水和拉森IV钢板桩支护相比，有良好的经济效益. [关键词]地下工程；降水；轻型井点 [中图分类号]TU753.1 [文献标识码]A [文章编号]1002-8498(2011)20-0062-03 Application of Dewatering Technology with Improved Light Well Points Zhang Jianping Chen Lu Li Weifeng Wang Fuxiang Huizhou Hydroelectric Construction Engineering Co.Ltd.Huizhou Guangdong 516001 China) Abstract:The dewatering technology of traditional light well points has some defects in hole and well forming pumps dewatering effect materials and large influence to environment.Based on the traditional light well points dewatering improved light well points are adopted.The improved dewatering technology adopts small and light equipments and materials and the materials can be reused.The foundation excavation has no seepage and water after treated with improved dewatering technology and the slop is safe.Moreover the influence range of dewatering is significantly reduced.Comparing with traditional light well points and IV steel-plate Larsen piles the improved light well points dewatering technology has better economical benefits. Key words:underground;dewatering;light well points 传统的轻型井点降水技术存在很多技术、经济1改进型轻型井点降水方法 方面的弊端：①造孔成井慢，主要是传统的管井成孔 改进型轻型井点降水是在传统的轻型井点降水 直径较大，在造孔成井时要用冲击钻或回转钻机，灵 方法的基础上进行改进创新，其创新点如下. 活性差，井壁构造较复杂，造价高，...
改进型轻型井点降水技术及其应用.pdf
