Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Circulating pressure-maintaining multi-turn grouting method for dam seepage-proofing reinforcement
The invention belongs to the technical field of seepage-proofing reinforcement of water conservancy foundations, and particularly relates to a circulating pressure-maintaining multi-turn grouting method for dam seepage-proofing reinforcement. The method comprises the following steps that the position of a permeable layer needing to be disposed is determined; holes are distributed in the position,close to the upstream face, of the top of a dam, and then a grouting hole is drilled through a drilling machine; a grouting pipe is arranged in the grouting hole, a hole sealing pipe is shorter than the grouting pipe, and an isolation block is arranged below the hole sealing pipe; an expansion material is injected into the hole sealing grouting pipe for hole sealing and pressure maintaining; and acirculating pressure-maintaining multi-turn grouting method is used for grouting of permeable high polymers, and the grouting pressure is 0.5-2Mpa. According to the method, construction is convenientand fast, the construction period is short, disturbance to the dam is small, the seepage-proofing effect is good, durability is high, full permeation and diffusion of grout are facilitated, subjectivity and experience of the grouting process can be effectively reduced, and grouting construction can be guided.
本发明属于水利基础涉及防渗加固技术领域，具体涉及一种用于堤坝防渗加固的循环保压多轮次注浆方法。包括以下步骤：确定需要处置的渗透层位置；在堤坝顶部靠近迎水面布孔，然后用钻机钻取注浆孔；将注浆管置于注浆孔内，封孔管短于注浆管，在封孔管下方设置有隔离块；往封孔注浆管中注入膨胀料进行封孔保压；使用循环保压多轮次注浆法进行渗透型高聚物的注浆，注浆压力为0.5～2Mpa。本发明方法施工便捷、工期较短、对堤坝扰动小、防渗效果好、耐久性强，利于浆液充分渗透扩散，且可有效降低注浆过程的主观性和经验性，可指导注浆施工。
Circulating pressure-maintaining multi-turn grouting method for dam seepage-proofing reinforcement
The invention belongs to the technical field of seepage-proofing reinforcement of water conservancy foundations, and particularly relates to a circulating pressure-maintaining multi-turn grouting method for dam seepage-proofing reinforcement. The method comprises the following steps that the position of a permeable layer needing to be disposed is determined; holes are distributed in the position,close to the upstream face, of the top of a dam, and then a grouting hole is drilled through a drilling machine; a grouting pipe is arranged in the grouting hole, a hole sealing pipe is shorter than the grouting pipe, and an isolation block is arranged below the hole sealing pipe; an expansion material is injected into the hole sealing grouting pipe for hole sealing and pressure maintaining; and acirculating pressure-maintaining multi-turn grouting method is used for grouting of permeable high polymers, and the grouting pressure is 0.5-2Mpa. According to the method, construction is convenientand fast, the construction period is short, disturbance to the dam is small, the seepage-proofing effect is good, durability is high, full permeation and diffusion of grout are facilitated, subjectivity and experience of the grouting process can be effectively reduced, and grouting construction can be guided.
本发明属于水利基础涉及防渗加固技术领域，具体涉及一种用于堤坝防渗加固的循环保压多轮次注浆方法。包括以下步骤：确定需要处置的渗透层位置；在堤坝顶部靠近迎水面布孔，然后用钻机钻取注浆孔；将注浆管置于注浆孔内，封孔管短于注浆管，在封孔管下方设置有隔离块；往封孔注浆管中注入膨胀料进行封孔保压；使用循环保压多轮次注浆法进行渗透型高聚物的注浆，注浆压力为0.5～2Mpa。本发明方法施工便捷、工期较短、对堤坝扰动小、防渗效果好、耐久性强，利于浆液充分渗透扩散，且可有效降低注浆过程的主观性和经验性，可指导注浆施工。
Circulating pressure-maintaining multi-turn grouting method for dam seepage-proofing reinforcement
一种用于堤坝防渗加固的循环保压多轮次注浆方法
GUO CHENGCHAO (Autor:in) / WANG CHAOJIE (Autor:in) / SHI MINGSHENG (Autor:in) / ZHAO PENG (Autor:in) / ZHAO XIANFENG (Autor:in) / XUE BINGHAN (Autor:in) / WANG YINGLI (Autor:in) / XIA YANGYANG (Autor:in) / LIU QI (Autor:in) / HUANG GUANGYING (Autor:in)
30.10.2020
Patent
Elektronische Ressource
Chinesisch
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