高水头大流量集中渗漏反向控制灌浆技术研究
发布时间：2019-06-26 23:40
【摘要】：高水头大流量集中渗漏是水利水电等工程领域建设中常见而又复杂的问题,现有动水条件下封堵灌浆施工难度大、效果差、工期长、材料浪费严重,技术可控性与经济性差。针对存在的问题,提出反向灌浆新思路,研发了一种兼具导水、止水与灌浆功能的止水灌浆盒,将其安装在集中渗漏出口,实现变动水施工条件为静水施工条件后,再进行反向控制性灌浆封堵新技术。经乌江银盘水电站三期基坑岩溶渗漏处理等多个工程验证,该技术可成功地解决高水头大流量集中渗漏这一长期困扰水电工程界的工程技术难题。
[Abstract]:High head and large flow concentrated leakage is a common and complex problem in the construction of water conservancy and hydropower and other engineering fields. Under the existing dynamic water conditions, the construction of plugging grouting is difficult, the effect is poor, the construction period is long, the material waste is serious, and the technical controllability and economy are poor. In view of the existing problems, a new idea of reverse grouting is put forward, and a new grouting box with both water diversion, water stop and grouting function is developed, which is installed at the centralized leakage outlet and the variable water construction condition is static water construction condition, and then a new reverse controlled grouting sealing technology is carried out. It has been verified by many projects, such as Karst leakage treatment of Phase III Foundation Pit of Yinpan Hydropower Station in Wujiang River, that this technology can successfully solve the engineering technical problem of high head and large flow concentrated leakage, which has been puzzling the field of hydropower engineering for a long time.
【作者单位】： 长江勘测规划设计研究有限责任公司;
【分类号】：TV543
[Abstract]:High head and large flow concentrated leakage is a common and complex problem in the construction of water conservancy and hydropower and other engineering fields. Under the existing dynamic water conditions, the construction of plugging grouting is difficult, the effect is poor, the construction period is long, the material waste is serious, and the technical controllability and economy are poor. In view of the existing problems, a new idea of reverse grouting is put forward, and a new grouting box with both water diversion, water stop and grouting function is developed, which is installed at the centralized leakage outlet and the variable water construction condition is static water construction condition, and then a new reverse controlled grouting sealing technology is carried out. It has been verified by many projects, such as Karst leakage treatment of Phase III Foundation Pit of Yinpan Hydropower Station in Wujiang River, that this technology can successfully solve the engineering technical problem of high head and large flow concentrated leakage, which has been puzzling the field of hydropower engineering for a long time.
【作者单位】： 长江勘测规划设计研究有限责任公司;
【分类号】：TV543
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