地下暗流复杂地层高压旋喷防渗墙喷灌施工工法  

Construction method of high pressure jet grouting diaphragm wallin complexstratum of undergroundflow

作　　者：张建红 蒋振荣 傅得伟 ZHANG Jianhong;JIANG Zhenrong;FU Dewei(Shanghai Construction Engineering-Zhejiang Hydropower Construction Foundation Engineering Co.,Ltd.,Shaoxing 312000,China)

机构地区：[1]上海建工-浙江省水电建筑基础工程有限公司,浙江绍兴312000

出　　处：《水利建设与管理》2018年第12期67-71,80,共6页Water Conservancy Construction and Management

摘　　要：在有地下暗流的砂砾石复杂地层,旋喷技术的浆液和凝结体易受到地下水的冲刷,降低防渗效果,严重时可导致工期延误,造成经济损失。本文在常规高压旋喷灌浆施工的基础上,在满足规范和设计的前提下,通过调整灌浆工艺和浆液配方,有效降低了地下水对浆液和凝结体的冲刷破坏。此工法被多次应用于防渗墙工程施工中,成熟可靠,效益明显。The slurry and condensate of rotary jet technology are susceptible to erosion of groundwaterin the complex sandgravel stratum withi undergroundflow,thereby reducing the effect of seepage prevention,and causing delay of construction period and economic loss in serious cases.The scour damage of groundwater to slurry and condensate is effectively reduced in the paper.based on the construction of conventional high pressure rotary sprinkler groutingunder the premise of meeting the specification and design through adjusting grouting process and slurry formula.The method has been used in the construction of cutoff wallfor many times,and the method is mature and reliable with obvious benefit.

关 键 词：地下暗流 高压旋喷 浆液配方 灌浆工艺 复杂地层 

分 类 号：TV52[水利工程—水利水电工程]