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Deep and thick rockfill layer down-the-hole hammer hole guiding and rotary jet drilling and spraying integrated pile forming equipment

A technology of down-the-hole hammer and stone layer, applied in sheet pile wall, construction, foundation structure engineering and other directions, can solve the problems of poor pile forming effect, and achieve the effect of reliable quality, significant social and economic benefits, and good pile forming effect.

Pending Publication Date: 2022-07-05
SHENZHEN GONGKAN GEOTECHN GRP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide integrated pile-forming equipment for DTH hammer pilot hole and rotary spray drilling and spraying in deep rock-fill layers, aiming to solve the problem of poor pile-forming effect in pile-forming construction in deep rock-fill layers in the prior art

Method used

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  • Deep and thick rockfill layer down-the-hole hammer hole guiding and rotary jet drilling and spraying integrated pile forming equipment
  • Deep and thick rockfill layer down-the-hole hammer hole guiding and rotary jet drilling and spraying integrated pile forming equipment
  • Deep and thick rockfill layer down-the-hole hammer hole guiding and rotary jet drilling and spraying integrated pile forming equipment

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Embodiment Construction

[0026] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

[0027] The implementation of the present invention will be described in detail below with reference to specific embodiments.

[0028] The same or similar numbers in the drawings of this embodiment correspond to the same or similar components; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present inventio...

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Abstract

The invention relates to the technical field of pile forming construction, and discloses deep and thick rockfill layer down-the-hole hammer hole guiding and rotary jet drilling and spraying integrated pile forming equipment which comprises an all-in-one machine, the all-in-one machine comprises a rack, the rack is provided with a power head, an air slurry conveying connector and a drill rod, the lower portion of the drill rod is provided with a down-the-hole impact head, and the power head drives the drill rod to drill a hole guiding in a rockfill layer; the air slurry conveying connector is connected with a rotary spraying air compressor, a down-the-hole hammer air compressor and a high-pressure grouting pump, and a nozzle is arranged on the lower portion of the drill rod. In the process that the power head drives the drill rod to drill the guide hole to the designed elevation of the pile bottom, the down-the-hole hammer air compressor drives the down-the-hole impact head to impact and drill, the jet grouting air compressor jets high-pressure gas in the pile hole in a rotary mode through the nozzle, and the high-pressure grouting pump jets grout in the pile hole in a rotary mode through the nozzle; in the process that the power head drives the drill rod to be lifted in the pile hole, the jet grouting air compressor jets high-pressure gas in the pile hole in a jet mode through the nozzle, and the high-pressure grouting pump jets grout in the pile hole in a jet mode through the nozzle till the grout reaches the designed reinforcement height of the pile top.

Description

technical field [0001] The patent of the present invention relates to the technical field of pile-forming construction, in particular, to the pile-forming equipment integrating DTH hammer leading hole and rotary jet drilling and spraying in deep rock-filling layers. Background technique [0002] To carry out high-pressure rotary jetting foundation treatment and reinforcement in the deep rock-fill layer, the rock-fill layer is usually pre-drilled with a down-the-hole hammer, and then lowered into the casing to protect the wall, and then the lower stratum is drilled and high-pressure jet grouting is carried out. . [0003] In the prior art, the construction efficiency is low due to the addition of lead holes and the steps of lowering the casing in the overall construction, and at the same time, due to the large gap between the filling stones in the stone filling layer, when the slurry is sprayed, The grout is easily lost from the gap between the fillings, it is difficult to c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D5/46E02D3/12
CPCE02D5/46E02D3/12
Inventor 雷斌王刚杨静廖启明黄涛袁伟戴锦鸿张大傲
Owner SHENZHEN GONGKAN GEOTECHN GRP
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