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Process for lengthening long anchor bar pile on high slope

A technology for anchor-reinforced piles and slopes, which is applied to sheet pile walls, foundation structure engineering, buildings, etc., can solve problems such as difficulty in guaranteeing construction quality, lack of standardized methods for lengthening anchor-reinforced piles, and prominent construction safety issues

Pending Publication Date: 2021-09-10
SINOHYDRO BUREAU 14 CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the field of water conservancy and hydropower engineering, the design and arrangement of locking anchor piles on high slopes or below the horse road, because the design drawings and related construction specifications and technical requirements do not have clear requirements for the lengthening of anchor reinforcement piles, there has been no specification for the length of anchor reinforcement piles This practice has brought difficulty and controversy to the construction quality control of anchor pile extension
At the same time, due to the limited width of the construction platform on high slopes, the traditional method of inserting rods after one-time assembly is adopted for long anchor piles with high rigidity, the construction is difficult and the construction safety problem is prominent
Due to the characteristics of anchor piles, welding processes such as lap joints and tie-bar welding need to use larger apertures to meet the requirements, and have a greater impact on the insertion rod; the construction quality of the butt welding connection process is difficult to guarantee
At the same time, it is difficult to insert the whole long anchor pile on the construction platform with limited width of the high slope, and the construction safety problem is serious.
There is no relevant report in the relevant documents of the technical building construction of the high slope long anchor bar pile connecting length of the present invention

Method used

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  • Process for lengthening long anchor bar pile on high slope
  • Process for lengthening long anchor bar pile on high slope
  • Process for lengthening long anchor bar pile on high slope

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A kind of technology of high slope long anchor reinforcement pile lengthening is as follows:

[0020] 1) First use CM351 high wind pressure down-the-hole drilling rig to drill the anchor piles, use the surveying and mapping total station to arrange the hole positions, and correct the deviation in time during the drilling stage. The deviation angle does not exceed 3°;

[0021] 2) Prefabricate the B32 steel bar 4 with a length of 3m with a steel bar cutting machine, tap the end of the steel bar with a straight thread rolling machine to process it into a steel bar with wires, and use the national standard B32 straight thread sleeve for the straight thread sleeve 3;

[0022] 3) Assembly: Bind and connect 3 B32 steel bars with wires and 3 A10 centering steel bars 6 to form an equilateral triangle (the position of the steel bars is fixed), and tie a grout return pipe 2 on the right side of the wire steel bars , the lower side is tied with a grout pipe 5 to form the overall s...

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Abstract

The invention relates to a process for lengthening a long anchor bar pile on a high slope. According to the process, the mode that anchor bars are prefabricated in a segmented mode, and straight thread sleeves are connected and lengthened on site is adopted. Compared with previous welding process measures such as engineering lap joint and binding strip welding, the process is convenient to construct and low in cost, and the quality effect is easy to guarantee; and meanwhile, the process can be extended to projects of other structures of projects such as water conservancy, hydropower and highways, the application range is expanded, the effect of anchor bar pile construction is greatly improved, and the application prospect is good.

Description

technical field [0001] The invention belongs to the technical fields of water conservancy, hydropower and highway engineering, and in particular relates to a technology for connecting long anchor-reinforcement piles on high slopes. Background technique [0002] In the field of water conservancy and hydropower engineering, the design and arrangement of locking anchor piles on high slopes or below the horse road, because the design drawings and related construction specifications and technical requirements do not have clear requirements for the lengthening of anchor reinforcement piles, there has been no specification for the length of anchor reinforcement piles This practice has brought difficulty and controversy to the quality control of anchor reinforcement pile extension construction. At the same time, due to the limited width of the construction platform on high slopes, the traditional method of inserting rods after one-time assembly is adopted for long anchor piles with ...

Claims

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Application Information

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IPC IPC(8): E02D17/20E02B3/12E02D5/74E02D15/04
CPCE02D17/20E02B3/12E02D5/74E02D15/04E02D17/207
Inventor 梁皓赵柏念李辉闫闯古朝华尹创路马红力靳志文仕坦刘义刘星
Owner SINOHYDRO BUREAU 14 CO LTD
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