Construction method for filling drainage plate grooves with water stop material

Abstract

The invention discloses a construction method for filling drainage plate grooves with a water stop material, which comprises the following steps: step 1, after foundation reinforcement operation is completed, finding out all drainage plates buried in a soil layer of a foundation, and ensuring that the upper end parts of the drainage plates where ports of the drainage plate grooves are located are exposed; step 2, fixedly connecting grouting devices with the upper ends of the drainage plates through connectors, and ensuring that the grouting devices communicate with the drainage plate grooves; step 3, preparing a slurry-shaped water stop material and injecting the slurry-shaped water stop material into the drainage plate grooves through the grouting devices; and step 4, repeating the steps 2 and 3, and plugging all the drainage plate grooves. According to the method, after the foundation reinforcement operation is completed, the drainage plate grooves left in the soil layer of the foundation are subjected to grouting plugging, pore water in the soil layer below the foundation is prevented from being continuously discharged outwards from the drainage plate grooves, the deformation rate of the foundation can be effectively reduced, the settlement amount and the uneven settlement amount of the foundation are reduced, and the risk that the upper structure of the foundation is damaged due to foundation deformation is reduced.

Description

technical field [0001] The invention belongs to the technical field, and in particular relates to a construction method for filling a water-stop material in a drainage board groove. Background technique [0002] In coastal areas or areas with deep soft soil layers along the river, the method of drainage consolidation is usually used for foundation reinforcement. First bury the drainage plate with the plate groove in the soil layer, and then apply a preload to the surface of the soil layer, and discharge the pore water in the soil layer through the drainage plate groove. The drainage plate groove is the pore water in the soil layer. The main channel for discharge under pressure. [0003] After the foundation reinforcement is completed, the preload-applying device and related auxiliary appliances will be evacuated, and the drainage board will be left in the soil layer of the foundation area because it is inconvenient to remove. After that, the facilities built on the foundat...

AI Technical Summary

Problems solved by technology

After that, the facilities built on the foundation will continue to exert loads on the soil layer under the action of gravity, and the pore water in the soil layer below the foundation will continue to be discharged from the drainage board groove, resulting in large post-construction settlement, or Large uneven settlement, causing serious damage to the superstructure of the foundation

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