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Pneumatic operation system for manual hole digging pile construction and construction method

A technology of manual hole-digging piles and operating systems, which is applied to the manual-digging pile construction compressed air operation system and construction field, which can solve the problems of non-lower aquifer water level, slow construction progress, safety accidents, etc., to ensure smooth implementation and large-scale promotion foreground effect

Pending Publication Date: 2021-11-30
POWERCHINA RAILWAY CONSTR +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the manual excavation pile reaches the water level and then goes down for construction, the water will continue to flow out, and at the same time accompanied by sand gushing, it will be difficult to continue excavation, the construction progress will be slow, and serious water and sand gushing will also cause safety accidents
[0004] In view of the above two situations, it is urgent to find a safe and effective manual excavation construction method to solve the problems of unstable muddy stratum and no precipitation, and the water level of the aquifer cannot continue to be excavated.

Method used

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  • Pneumatic operation system for manual hole digging pile construction and construction method
  • Pneumatic operation system for manual hole digging pile construction and construction method
  • Pneumatic operation system for manual hole digging pile construction and construction method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Such as figure 1 Shown, a kind of manual excavation pile construction compressed air operation system includes working room 200, pressure and decompression chamber 100 and air compressor, and air compressor is used to provide gas for working room 200 and / or pressure and decompression chamber 100; The chamber 200 is arranged above the pile hole; a sealing device is arranged between the working chamber 200 and the pressure and decompression chamber 100;

[0041] A first airtight door 103 is set on the side wall of the pressure and pressure chamber 100, a second airtight door 203 is set on the side wall of the working room 200, and a third airtight door 221 is set between the working room 200 and the pressure and pressure chamber 100; A manual hole-digging pile interface 204 is set, and the manual hole-digging pile interface 204 is connected to the pile hole; a sealing structure is set between the working room 200 and the pile hole; a slag hanging device 222 is set in the ...

Embodiment 2

[0045] The working chamber 200 and the pressure-reducing chamber 100 are formed by dividing a container. There is a partition wall between the working chamber 200 and the pressure-reducing chamber 100, and a third airtight door 221 is arranged on the partition wall.

[0046] A sealing structure is provided between the bottom of the working room 200 and the interface 204 of the manual excavation pile. The sealing structure includes a sealing cylinder 403. The sealing cylinder 403 is inserted into the retaining wall 409 of the wellhead section of the excavating pile. Layer 404. Fix the compressed air operation equipment, and fill the gap between the sealing cylinder 403 and the wellhead section retaining wall 409 with a sealing layer 404 (such as quick cement). All components of the compressed air operation equipment shall be inspected and tested before the compressed air operation, and shall meet the design performance and integrity requirements. All shut-off valves and air re...

Embodiment 3

[0049] The compressed air operation equipment for construction of artificial excavated piles is composed of components such as a pressure-reducing chamber 100, a working room 200, an air compressor, an air-compression regulating device 305, and related pipelines, and is integrated into a container. When manual hole-digging piles need to be operated by compressed air, they are directly transported to the site by a transport vehicle, hoisted by a crane and installed in place, and then they can be used.

[0050] A first thermometer 124 is set in the pressure-reduction chamber 100 , and a second thermometer 205 is set in the working chamber 200 . A first heater 121 is installed in the pressure and pressure chamber 100 , and a second heater 217 is installed in the working chamber 200 . A first communicator 119 for communicating with the outside world is installed in the decompression chamber 100 , and a second communicator 218 for communicating with the outside world is provided in...

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Abstract

The invention discloses a pneumatic operation system for manual hole digging pile construction. The pneumatic operation system comprises a working chamber, a pressurizing and depressurizing chamber and an air compressor; the working chamber is arranged above a pile hole; a first sealing door is arranged on the side wall of the pressurizing and depressurizing chamber; a second sealing door is arranged on the side wall of the working chamber; a third sealing door is arranged between the working chamber and the pressurizing and depressurizing chamber; a manual hole digging pile connector is arranged at the bottom of the working chamber and communicates with the pile hole; a sealing structure is arranged between the working chamber and the pile hole; slag lifting equipment is arranged in the working chamber; a first lighting device is arranged in the pressurizing and depressurizing chamber; and a second lighting device is arranged in the working chamber. The invention further provides a construction method. Pneumatic operation personnel complete excavation, wall protection, supporting and other work of a manual hole digging pile under the pneumatic condition in pneumatic operation equipment, the purpose of stabilizing a weak stratum or pneumatic water stopping is achieved in the excavation process, the problem that the manual hole digging pile cannot be constructed in the weak stratum or a water-bearing stratum cannot be excavated downwards is solved, and the pneumatic operation system has great popularization prospects.

Description

technical field [0001] The invention relates to the construction of manual hole-digging piles, in particular to an air-pressure operation system and construction method for manual hole-digging pile construction. Background technique [0002] Pile foundation construction generally adopts manual digging, rotary drilling and impact drilling. Due to the excessive safety risk of manual digging, there are many accidents. Nowadays, rotary drilling and percussion drilling are generally used to form holes, and manual digging is rarely used. [0003] However, some piles have to use manual digging due to special conditions (such as limited space, more interference, noise restrictions, etc.). The precondition of manual hole-digging piles is that precipitation must be carried out, and the depth of precipitation is lower than the deepest part of the hole-digging piles. Precipitation in some strata (such as silt strata) will cause large surface subsidence and affect the safety of nearby ...

Claims

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Application Information

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IPC IPC(8): E02D19/12E02D19/20
CPCE02D19/12E02D19/20
Inventor 王国义张洁澜吴宗林蒋蔚周显刚田春雨刘秀争
Owner POWERCHINA RAILWAY CONSTR
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