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Grouting reinforcement device and method for shallow clay

A technology of grouting reinforcement and clay, applied in construction, sheet pile walls, foundation structure engineering, etc., can solve problems such as poor stabilization effect and troublesome operation, achieve good grouting pressure and solve unstable effects

Inactive Publication Date: 2015-03-04
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the past, the sleeve valve tube was mostly used, and the casing material was filled around the sleeve valve tube to stabilize it. There are two disadvantages in the stabilization of the sleeve valve tube. One is that the operation is troublesome; the other is that although it can play a certain role, the stabilization effect is not good.

Method used

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  • Grouting reinforcement device and method for shallow clay
  • Grouting reinforcement device and method for shallow clay

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Embodiment Construction

[0023] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0024] Such as figure 1 As shown, a shallow clay grouting reinforcement device includes two parts, a mold bag 1 and a sleeve valve tube. The sleeve valve tube consists of a galvanized grouting inner tube 3, a PVC outer tube 7, a grout hole 2, a rubber sleeve 4, The positioning ring 5 and the lower cover 6 are composed of the galvanized grouting inner pipe 3 and the PVC outer pipe 7, and the galvanized grouting inner pipe 3 is provided with a grout overflow hole 2. The outer ring suit of pipe 7 is provided with some rubber sheaths 4, and the upper and lower sides of rubber sheaths 4 are provided with positioning rings 5, and the bottom of galvanized pipe 3 is provided with a lower boring cover 6.

[0025] The PVC outer pipe collects the grout from the grouting inner pipe, so that the grout flows out from the set position, realizing segmental grouting. ...

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Abstract

The invention relates to a grouting reinforcement device and a method for shallow clay. The device mainly comprises a sleeve valve pipe and a mold bag, wherein the sleeve valve pipe comprises a galvanized grouting inner pipe, a PVC (polyvinyl chloride) outer pipe, rubber sleeves, sealing rings and the like. The invention further discloses a use method of the device at the same time. According to the device and the method, cement and water glass are injected into the mold bag to form a pile foundation-similar structure according to the characteristics of difficult fixing and pressing of a shallow clay body, the sleeve valve pipe can be effectively fixed, a pressure-bearing foundation is provided for grouting of the sleeve valve pipe, and at the same time, the device and the method have universality according to the characteristic of the flexible grouting of the sleeve valve pipe. The device and the method have the advantages low manufacturing material cost, a simple laying method, convenience in operation and the like.

Description

technical field [0001] The invention relates to the field of grouting, in particular to a grouting reinforcement device and method for shallow clay. Background technique [0002] Grouting has always been an effective method to deal with bad geology, and has achieved good treatment effects. Most of the grouting technologies now are aimed at deep grouting, and there are many shallow clay grouting projects, such as water in excavation of foundation pits and excavation of subway stations. The shallow clay grouting has the following difficulties: the grouting pipeline is difficult to fix; the grouting pressure cannot be increased, and it is difficult to split the clay body, resulting in the grout not entering the clay. The slurry cannot be injected. In the past, sleeve valve tubes were often used, and shell materials were filled around the sleeve valve tubes for stabilization. There are two disadvantages in the stabilization of sleeve valve tubes. One is that the operation is t...

Claims

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Application Information

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IPC IPC(8): E02D15/04E02D5/38
CPCE02D5/38E02D15/04
Inventor 王洪波张乐文孙子正冯啸王健周轮
Owner SHANDONG UNIV
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