Hole sealing structure for reinforcing shallow foundation through grouting method and construction technology thereof

A construction technology and grouting hole technology, which is applied in basic structural engineering, soil protection, construction, etc., can solve problems such as unreasonableness, seepage, and grouting reinforcement cannot be achieved, and achieve reasonable structural design, low cost, and low cost. The effect of improving bearing capacity and stability

Pending Publication Date: 2018-03-23
ZHENGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the buried depth of the foundation of traditional residential buildings is often shallow, and the shallow foundation soil often contains sundries such as tree roots and broken bricks. Therefore, it is obviously unreasonable to directly apply the grouting method to the reinforcement of traditional residential foundations.

Method used

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  • Hole sealing structure for reinforcing shallow foundation through grouting method and construction technology thereof
  • Hole sealing structure for reinforcing shallow foundation through grouting method and construction technology thereof
  • Hole sealing structure for reinforcing shallow foundation through grouting method and construction technology thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A hole sealing structure suitable for the reinforcement of the shallow foundation of traditional dwelling houses by grouting, which is composed of miscellaneous filling, artificial filling, sandy soil, silt and clayey soil, see Figures 1 to 6 , including an outdoor grout stopper 5 , an indoor grout stopper 3 , a grout stopper rib 6 , a grouting hole 1 , a sealing positioning strip 9 , and a sealing concrete 8 .

[0042] Among them, the outdoor grout-stopping board 5 is linearly arranged on the foundation 7 along the outer wall of the foundation wall 4, the indoor grout-stopping board 3 is all over the room, and the grout-stopping ribs 6 are embedded in the foundation below the outdoor grout-stopping board 5 along the outdoor grout-stopping board 5 7; the grouting holes 1 pass through the grout stop plate and are evenly distributed in the foundation 7 on both sides of the foundation wall 4 at intervals of 1.0 to 2.0 m. The diameter of the grouting hole 1 is 70 to 120 mm....

Embodiment 2

[0049] A construction technique for the sealing structure of a shallow foundation reinforced by grouting method, comprising the following steps:

[0050] (1) Pre-preparation: Level the site, clean the working face, prepare C20 plain concrete raw materials, grouting pipe 2, sealing positioning belt 9, concrete mixer, small pneumatic drilling rig, Luoyang shovel, and choose a reasonable location next to the reinforcement site to place the above materials and equipment;

[0051](2) Excavation of the foundation trench: Excavate the foundation trench according to the size of the pre-designed outdoor grout stop board 5, indoor grout stop board 3 and grout stop rib 6, and carefully clean the floating soil on the foundation after the trenching is completed;

[0052] (3) Drilling: use a small pneumatic drill and a Luoyang shovel successively to drill holes with a spacing of 1.0-2.0m and a hole diameter of 70-120mm. The depth of the small pneumatic drill is 1-1.2m, and the depth of the ...

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Abstract

The invention discloses a hole sealing structure for reinforcing a shallow foundation through a grouting method and a construction technology of the hole sealing structure, and belongs to the field ofshallow foundation reinforcing. The problem that sealing of a shallow foundation grouting hole is unreasonable is solved. The hole sealing structure comprises a grouting stop plate, grouting stop ribs, grouting holes, a hole sealing positioning belt and hole sealing concrete, the grouting holes penetrate through the grouting stop plate and an outdoor grouting stop plate to be evenly distributed on the two sides of a foundation wall, a positioning device is fixed to the grouting pipe so as to determine the position of the hole sealing positioning belt, the outdoor grouting stop plate is linearly arranged along the outer wall of the foundation wall, and the grouting stop ribs are embedded into foundation soil along the outdoor grouting stop plate. The construction technology of the hole sealing structure comprises the steps of early-stage preparation, foundation ditch excavation, drilling, grouting pipe installation and hole sealing. The grouting stop effect is good, construction is easy and convenient, shallow foundation bearing capacity and stability are greatly improved, the construction cost is low, and economic benefits are remarkable.

Description

technical field [0001] The invention relates to the field of reinforcement of shallow foundations of traditional dwellings, in particular to a sealing structure for reinforcing shallow foundations by grouting and a construction process thereof. Background technique [0002] Traditional dwellings refer to those "buildings without architects" that are rural, unofficial, folk, inherited from generation to generation, and dominated by residential types. Great historical, cultural and practical value. However, there are few studies on the safety performance of traditional residential structures at this stage, and a very important factor affecting the safety performance of traditional residential structures is the uneven settlement of the foundation. Therefore, how to take effective foundation reinforcement measures is an important prerequisite for improving the safety performance of traditional residential structures. [0003] The grouting method, as an economical and safe foun...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D3/00E02D3/12
CPCE02D3/00E02D3/12
Inventor 宋建学李晓健童丽萍张俊峰赵笑鹏张世轩刘凯
Owner ZHENGZHOU UNIV
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