Soil permeability-reducing agent and construction method thereof

Abstract

The invention relates to a soil permeability-reducing agent and a construction method thereof. The soil permeability-reducing agent provided by the invention comprises the following effectively components in percentage by mass: 5 to 15 percent of sodium organosilicate, 0.5 to 1 percent of nonionic polyacrylamide, 10 to 30 percent of sodium silicate, 3 to 5 percent of aluminium sodium sulfate, 1 to 2 percent of calcium hydroxide, 1 to 3 percent of sodium citrate, 3 to 6 percent of hydroxymethyl cellulose or polyanionic cellulose, 1 to 3 percent of triisopropanolamine and 40 to 70 percetn of water. The raw materials are chemical reagents which are easily available and cheap, the cost is low, the characteristic complementation of the components is taken into full consideration, configuration is optimized and the construction method is simplified, so that the saline-alkali land soil permeability-reducing agent which is excellent in performance, low in cost and simple and convenient in use method is obtained.

Description

technical field [0001] The invention relates to a soil anti-seepage agent and a construction method thereof, in particular to an anti-seepage agent for sulfate-containing soil and a construction method thereof. Background technique [0002] There are internal spaces such as pores and crevices in natural soil, which are easy to permeate and form leakage. Many large-scale water storage facilities such as salt pans, in order to reduce costs, directly use the soil on site as construction materials during the construction process, which will inevitably cause the loss of natural resources in brine due to seepage of salt pans. The seepage of salt fields causes the loss of valuable resources (such as potassium, lithium, etc.) in brine. On the one hand, it reduces the unit production capacity of salt fields and increases production costs; It will have a great impact on the service life and resource supply capacity of the mine. Statistical data over the years have shown that domesti...

AI Technical Summary

Problems solved by technology

[0006] The above anti-seepage agents have not been reported for the anti-seepage of the soil used to build salt pans in western my country, such as Qinghai, Xinjiang and Tibet, with various specific compositions of surface and shallow soils, especially in many salt lake areas. It contains sulfate, Glauber's salt and gypsum, resulting in a large number of holes with different pore sizes in the soil layer, and the leakage is serious