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A method of pressurized grouting by utilizing an air bag blocking device

A plugging device and air bag technology, which is applied in the direction of earth drilling, bolt installation, mining equipment, etc., can solve the problems that the plugging and grouting effect cannot be substantially improved, and the plugging effect is unreliable.

Active Publication Date: 2018-06-12
BGI ENG CONSULTANTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above method cannot substantially improve the plugging and grouting effects due to the unreliable plugging effect.

Method used

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  • A method of pressurized grouting by utilizing an air bag blocking device
  • A method of pressurized grouting by utilizing an air bag blocking device

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Embodiment Construction

[0014] The implementation process of the present invention will be described in conjunction with the accompanying drawings. A simple airbag sealing device with reliable sealing effect, which can improve the grouting effect. The airbag is composed of a rubber cover 1, a rubber outer skin 4, a rubber inner skin 7, and an inflation port 2 vulcanized connection. The length of the entire airbag is 500mm , with a diameter of 150mm. According to the different uses of the airbag on the soil nail or the anchor rod, the rubber rod 8 for the soil nail and the rubber rod 9 for the anchor rod are respectively installed to the rubber rod socket 5. The length of the rubber rod is 500mm and the diameter is 50mm. When grouting soil nails, insert steel bars of the corresponding type into the steel bar jacks 10. The diameter of the steel bar jacks 10 is reserved according to the diameter of the steel bars. The number of steel strand jacks 11 is processed according to different diameters and roo...

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PUM

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Abstract

The invention provides a pressurizing grouting method utilizing an air bag blockage device. The method includes the steps that the air bag blockage device is mounted at the end of a soil nail or the end of an anchor rod, then the air bag blockage device is inflated to block a hole opening, and hole bottom pressurizing grouting is conducted in the soil nail or the anchor rod, so that poured pulp is in tight contact with the side wall of a formed hole; and after the poured pulp is solidified, air in the air bag blockage device can be exhausted to be recycled and reused. By the adoption of the pressurizing grouting method, the soil nail grouting effect or anchor rod grouting effect can be improved, and pulling resistance is improved; and meanwhile, after the poured pulp is solidified, the air bag blockage device can be recycled and reused after the air in the air bag blockage device is exhausted. The grouting method plays a substantial role in improving grouting quality of the soil nail or the anchor rod.

Description

【Technical field】: [0001] The invention relates to the plugging and pressurized grouting of soil nails or bolts in geotechnical engineering. 【Background technique】: [0002] The sealing and grouting effect of the air bag sealing device for pressurized grouting of soil nails or anchors is the key to its application and promotion. At present, the grouting of soil nails or anchors is mainly realized by dumping methods, and Generally, grouting bags are used for sealing to improve the quality of grouting. However, the above method cannot substantially improve the plugging and grouting effects because the plugging effect is unreliable. 【Invention content】: [0003] The purpose of the present invention is to improve the plugging effect of soil nails or bolt holes, improve the quality and efficiency of grouting construction of soil nails or bolts, ensure the design purpose of foundation pit support and the effect of saving costs. [0004] A pressurized grouting method by utilizi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D15/04E21D20/02
CPCE02D15/04E02D2250/003E21D20/028
Inventor 赵成国冯红超张略陈昌甫王成周宏磊杨素春王坚
Owner BGI ENG CONSULTANTS