Construction method of drainage pipe for slope support
By using a combination drill bit and push assembly of fixed drill pipe and disassembled drill pipe, the main body of the drain pipe is inserted into the drill hole supported by the slope and filled with fine sand, the problem of damage and blockage of non-woven fabrics during installation and use of drain pipes in the prior art is solved, and a stable drainage effect is achieved.
CN116043890BActive Publication Date: 2025-03-21CHINA CONSTR EIGHT ENG DIV CORP LTD
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Patent Information
- Application Number
- CN202310019948.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-01-06
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2043-01-06
AI Technical Summary
Technical Problem
In the prior art, the slope support drain pipe is easily damaged due to friction between the non-woven fabric and the hole wall during installation, and the pores of the non-woven fabric are easily blocked by the soil after use, affecting the drainage effect.
Method used
A combined drill bit with a fixed drill rod and a disassembled drill rod is used to insert the main body of the drain pipe into the drill hole through the pushing assembly, and fine sand is filled between the drain pipe and the drill hole wall to avoid contact between the non-woven fabric and the hole wall.
Benefits of technology
It effectively avoids damage to non-woven fabrics during installation and blockage during use, ensuring the drainage effect of drainage pipes and the safety of slope support.
✦ Generated by Eureka AI based on patent content.
Abstract
This invention discloses a construction method for a drainage pipe for slope support, comprising the following steps: 1. According to the location of the drainage pipe as shown in the construction drawings, move the drilling rig to position; 2. Insert a section of the drainage pipe body into the drill bit and fix it with a jacking component; 3. Start the drilling rig and allow the drill bit to drill in, storing the drill cuttings in the soil chamber of the drill bit; 4. When the drill bit reaches a certain depth, stop drilling and extend the drill bit using a detachable drill rod (3); 5. Insert the next section of the drainage pipe body coaxially into the detachable drill rod, and connect the next section of the drainage pipe body coaxially with the previous section of the drainage pipe body, while the drilling rig continues to control the drill bit to drill in; 6. Repeat steps 4 and 5 until the depth of the borehole is greater than the design depth; 7. Inject fine sand into the borehole and retract the drill rod to bury the drainage pipe body inside the borehole. This invention can assist in the installation of the drainage pipe, does not damage the non-woven fabric wrapped around the drainage pipe during installation, and makes the drainage pipe less prone to clogging during use.
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