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Grouting anti-seepage material with high groutability and strong permeability and construction method
The invention discloses a high-groutability and strong-permeability rock mass grouting seepage-proofing material and a construction method, and belongs to the field of coal mine seepage underground support engineering. Comprising nano-silica sol and coagulant, the coagulant with different volume ratios is added into the nano-silica sol to obtain the high-groutability and strong-permeability grouting impermeable material, and the volume ratio of the nano-silica sol to the coagulant is (3-10): 1; the nano silica sol is alkaline sodium type industrial silica sol, and the coagulant is a strong electrolyte solution. The stirring time for adding the silica sol and the coagulant is not less than 1 min, the continuous mixing and stirring time is 2-5 min, the silica sol slurry formed by sufficient mixing does not have a rapid hardening phenomenon, and particles and snowflake-shaped suspended solids appear in a small range. And grouting plugging is conducted on the needed area according to needs. The plugging agent is convenient to use, high in groutability, good in permeability and high in plugging performance.
本发明公开一种高可注强渗透的岩体注浆防渗材料与施工方法，属于煤矿渗地下支护工程领域。包括纳米硅溶胶和促凝剂，通过向纳米硅溶胶中添加不同体积比的促凝剂，得到高可注强渗透的注浆防渗材料，其中纳米硅溶胶和促凝剂的体积比为(3～10):1；所述纳米硅溶胶为碱性钠型工业硅溶胶，所述促凝剂为强电解质溶液。硅溶胶与促凝剂的添加搅拌时间不低于1min，继续混和搅拌时间为2‑5min，充分混合形成的硅溶胶浆液不出现速凝现象，不大范围出现颗粒及雪花状悬浮物。根据需要对需要区域进行注浆封堵。其使用方便，可注性强，渗透性好，封堵性能强。
Grouting anti-seepage material with high groutability and strong permeability and construction method
The invention discloses a high-groutability and strong-permeability rock mass grouting seepage-proofing material and a construction method, and belongs to the field of coal mine seepage underground support engineering. Comprising nano-silica sol and coagulant, the coagulant with different volume ratios is added into the nano-silica sol to obtain the high-groutability and strong-permeability grouting impermeable material, and the volume ratio of the nano-silica sol to the coagulant is (3-10): 1; the nano silica sol is alkaline sodium type industrial silica sol, and the coagulant is a strong electrolyte solution. The stirring time for adding the silica sol and the coagulant is not less than 1 min, the continuous mixing and stirring time is 2-5 min, the silica sol slurry formed by sufficient mixing does not have a rapid hardening phenomenon, and particles and snowflake-shaped suspended solids appear in a small range. And grouting plugging is conducted on the needed area according to needs. The plugging agent is convenient to use, high in groutability, good in permeability and high in plugging performance.
本发明公开一种高可注强渗透的岩体注浆防渗材料与施工方法，属于煤矿渗地下支护工程领域。包括纳米硅溶胶和促凝剂，通过向纳米硅溶胶中添加不同体积比的促凝剂，得到高可注强渗透的注浆防渗材料，其中纳米硅溶胶和促凝剂的体积比为(3～10):1；所述纳米硅溶胶为碱性钠型工业硅溶胶，所述促凝剂为强电解质溶液。硅溶胶与促凝剂的添加搅拌时间不低于1min，继续混和搅拌时间为2‑5min，充分混合形成的硅溶胶浆液不出现速凝现象，不大范围出现颗粒及雪花状悬浮物。根据需要对需要区域进行注浆封堵。其使用方便，可注性强，渗透性好，封堵性能强。
Grouting anti-seepage material with high groutability and strong permeability and construction method
一种高可注强渗透的注浆防渗材料与施工方法
XIANG ZHE (author) / ZHANG NONG (author) / PAN DONGJIANG (author) / XIE ZHENGZHENG (author)
2024-11-19
Patent
Electronic Resource
Chinese
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