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Construction device for underground anti-seepage curtain and construction method

A technology for construction devices and anti-seepage curtains, applied in protection devices, drilling equipment and methods, earthwork drilling and mining, etc., can solve problems such as restrictions on popularization, and achieve the effects of avoiding complex processes, simple equipment processes, and good continuity

Pending Publication Date: 2019-02-05
谢时雳
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0038] A certain number of special construction machines and a professional construction team with a certain technical level are required, which limits the promotion of this technology.

Method used

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  • Construction device for underground anti-seepage curtain and construction method
  • Construction device for underground anti-seepage curtain and construction method
  • Construction device for underground anti-seepage curtain and construction method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] A construction device for an underground anti-seepage curtain, which consists of: a sawing rig and a sawing drill rod 17, the main components of the sawing rig are: a diesel engine and a hydraulic pump 1, a gearbox 2, a power head 3, a winch 4, a drilling frame 5, Active drill pipe 6, drill pipe lifting hydraulic cylinder 7, active drill pipe lifting buckle 8, drill chassis slide 9, active drill pipe lifting control handle 10, active drill pipe speed control handle 11, active drill pipe rotation clutch 12, saw The chassis of the drilling rig slides back and forth to drive the hydraulic cylinder 13. The active drill pipe is a hollow drill pipe with a regular hexagonal cross-sectional shape. Its upper end is connected to the water injection joint 14 through a screw. The threaded button 16 can be connected with the saw drill rod 17, the active drill rod lifting buckle drill rod lifting hydraulic cylinder is fixed and sleeved on the active drill rod, the active drill rod lif...

Embodiment 2

[0061] According to the construction device of the underground anti-seepage curtain described in Embodiment 1, the lower end of the saw drill rod is provided with a slurry outlet 20 and a drill bit 19 is installed thereon.

Embodiment 3

[0063] According to the construction device of the underground anti-seepage curtain described in Embodiment 1, the sawtooth is 3-4 rows.

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Abstract

Disclosed are a construction device for an underground anti-seepage curtain and a construction method. A wall body formed by mutual lap joint of groove sections and grouting or mixing piles is poor incontinuity and not strict in anti-seepage performance, the lap joint process of the piles is complicated, and partial lap joint pile materials are repeated and wasted. The construction device is composed of a sawing and drilling machine and a sawing and drilling rod (17), the lower portion of a driving drill rod (6) on the sawing and drilling machine is in threaded connection with the sawing anddrilling rod, the outer surface of the sawing and drilling rod is annularly provided with a set of cylindrical structures of sawteeth (18) at equal intervals, the sawteeth are arranged counterclockwise and inversely spirally, the distance between every two adjacent sawteeth up and down is 5-15 cm, and the included angle between the sawteeth and the horizontal plane is 30 degrees. The constructiondevice and the construction method are used for the underground anti-seepage curtain.

Description

Technical field: [0001] The invention relates to a construction device and a construction method of an underground anti-seepage curtain, belonging to the fields of reservoir dam body anti-seepage and underground water seepage prevention in underground engineering construction. Background technique: [0002] At present, most anti-seepage curtains are anti-seepage curtain walls formed by rotary spraying, stirring and grouting. Generally, the double-pipe method is used, that is, double-channel grouting pipes are used to simultaneously eject high-pressure grout and air jets of two media to impact and destroy the soil, thereby forming a cement slurry and mud-sand mixture, which is sprayed from one side to the other side of the nozzle. Rotating and lifting, the cement slurry and the surrounding soil form a cylindrical solid body, so that the underground water interception and anti-seepage curtain is formed through multiple overlapping piles. The key and difficult point is the ove...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B7/02E21B17/22E02D5/18E02D15/02E02D31/02
CPCE21B7/02E21B17/22E02D5/18E02D15/02E02D31/02
Inventor 谢时雳
Owner 谢时雳
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