Preparation of polymer composite gelling agent for grouting and application method thereof

Abstract

The invention belongs to the technical field of a gelling agent for geologic hazard control as well as filling control of goaf and waste laneway or collapse craters after exploitation of other mines, and provides a formula and a method of a novel polymer composite gelling agent for grouting. The gelling agent comprises the following components in percentage by weight: 10-25% of bentonite, 5-20% of cellulose, 5-20% of vegetable gum, 10-15% of calcium hydroxide, 10-25% of inorganic hygroscopic agent, 0.5-1.5% of inorganic dispersant, 0.5-2% of inorganic flocculent, 6-18% of organic flocculent, and 5-15% of alkali metal carbonate. The gelling agent is used for processing and crushing, mixing with water, and injecting to slurry for gelling. According to the invention, the characteristics of high-hydroscopicity mineral matters and hydroscopic synthetic resin are sufficiently absorbed and utilized, and various ion groups are introduced and adjusted to obtain specific performance, so that the gelling agent has strong water solubility, can form hydrophile and water-insoluble gel in the slurry, and has excellent adhesion force to solids and dissolved matters in the slurry, good gelling property, strong water control function, high and adjustable jelling speed, low cost and no pollution.

Description

[technical field] [0001] The invention belongs to the technical field of gelling agent in the treatment of geological disasters and the goaf after mining of coal mines and other types of mines, as well as the filling and treatment of waste roadways and subsidence pits, and specifically relates to a polymer composite gelling agent for grouting. [Background technique] [0002] In geological disaster management, there are mainly debris flow control, river silt removal operations, etc. At present, there is no report on the use of gelling agent technology in this regard. Debris flow control mainly adopts measures such as planting turf and cement mortar to reinforce the mountain in advance. There are no good control measures for the formed debris flow, and there are defects such as high treatment cost and few technical means. At present, it can be controlled and prevented through the use of this material: one is to spread the polymer gelling agent in the prone area in advance to m...

AI Technical Summary

Problems solved by technology

However, there are more or less deficiencies in the existing technology, such as the oar is easy to break after being injected into the empty space, the cost is high, the gel strength is low, the comprehensive performance is poor, the fire prevention cannot be waterproof, the waterproof cannot be fireproof, and the process of adding and using is relatively Complicated, uneven mixing, less than ideal colloidal mud, etc.