Efficient and safe fast hole formation method adopting rotary excavating machinery for slide-resistant piles

A technology of anti-sliding piles and rotary pile machines, which is applied in the direction of drilling equipment and methods, rotary drilling rigs, sheet pile walls, etc., and can solve the problem of low efficiency of artificially excavated piles breaking into rocks and slow construction progress of artificially excavated piles , blasting and excavation are not allowed, and achieve the effects of fast speed, safe construction and reduced construction cost

Active Publication Date: 2020-02-21
YUNNAN JIANTOU FOUND ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the deficiencies of the existing technology, the present invention provides a hole forming speed, high positioning accuracy, convenient operation, low safety risk and wide applicability, which can greatly improve the construction efficiency, speed up the construction progress, accurate positioning, and solve the problem of manual digging. The construction progress of hole piles is slow and the risk is high, s

Method used

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  • Efficient and safe fast hole formation method adopting rotary excavating machinery for slide-resistant piles
  • Efficient and safe fast hole formation method adopting rotary excavating machinery for slide-resistant piles
  • Efficient and safe fast hole formation method adopting rotary excavating machinery for slide-resistant piles

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Effect test

Embodiment 1

[0082] Taking the landslide prevention project as an example, the side slope supporting structure adopts pile-slab retaining wall support, and the pile foundation size is 1.5m×2.4m rectangular anti-slide piles. See the hole forming process Figure 1~7 As shown, the following steps are generally included:

[0083] A. Positioning of anti-slide pile holes

[0084] A.1 The contour line of the anti-sliding pile hole is rectangular, that is, the contour line of the anti-sliding pile hole is the largest rectangular line. Determine the 1.5m×2.4m rectangular line 1 of the anti-sliding pile hole;

[0085] A.2 According to the length of the short side of the rectangular line as D=1.5m, and the hole diameter of the medium or large rotary drilling rigs on the market is 0.8~2.5m, the drill bit diameter of the rotary pile rig is determined to be d 1 =1.8m;

[0086] A.3 Determine the position of the first drilling pile core along the short side of one side of the rectangular line, such as figure 1 As...

Embodiment 2

[0094] The present invention is illustrated by taking a landslide prevention project as an example. The side slope supporting structure adopts a pile-slab retaining wall for supporting and a rectangular anti-slide pile with a pile foundation size of 1.5m×2.4m. See the construction method Figure 8-7 As shown, the following steps are generally included:

[0095] A. Stakeout

[0096] A.1 Sprinkle with gray lines to determine the contour line 1 of the anti-slide pile hole (1.5m×2.4m);

[0097] A.2 According to the short side length of the anti-slide pile hole contour line is 1.5m, the bore diameter of the medium or large rotary drilling rig on the market is 0.8~2.5m, and the drill bit diameter of the rotary drilling rig is determined to be 1.8m;

[0098] A.3 Determine the position of the first drilled pile core according to the short side of one side of the contour line of the anti-slide pile hole, such as Picture 8 As shown, the method of two tangent points and one radius is adopted, ...

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Abstract

The invention discloses an efficient and safe fast hole formation method adopting rotary excavating machinery for slide-resistant piles. The method comprises the following steps that A, paying off andpositioning of slide-resistant pile holes or site lofting is carried out; B, hole digging by a rotary excavating pile machine is carried out according to pile core serial number and position or the holes are formed adopting rotary excavating machinery; C, excess earthwork on a side wall is cleaned and sediment at the bottom of the pile is removed; D, a reinforcement cage is lowered; and E, the slide-resistant piles are formed through pouring concrete. According to the efficient and safe fast hole formation method adopting rotary excavating machinery for the slide-resistant piles, the problemsthat the efficiency of manual hole digging pile breaking into a rock is low, no blasting excavation is allowed under complex environment and the hole formation construction is very difficult are solved, on the one hand, the fact that hole formation adopting machinery can be carried out without using a pile casing and retaining wall is realized, so that the construction cost is greatly reduced; and on the other hand, the slide-resistant pile construction is completed quickly in the limited time when the self-stabilizing capacity of a hole wall after hole formation adopting machinery supports until the concrete pouring forming, and the construction safety and quality are ensured.

Description

Technical field [0001] The invention relates to an anti-slide pile hole forming method, in particular to a quick hole forming method of an anti-slide pile rotary digging machine integrating high efficiency and safety, and belongs to the technical field of slope support structure construction. Background technique [0002] Non-circular anti-slide piles generally adopt manual digging method. The manual digging pile construction operation technology is simple, the construction is convenient, and the construction quality is easy to guarantee. However, the underground working conditions of the digging pile are poor, the environment is harsh, the labor intensity is high, the construction speed of the single pile is slow, and the safety hazards in the construction are also very prominent; the construction personnel must take the underground operation, the personal safety problem is extremely serious, and there are many unsafe factors And hidden dangers, construction safety management i...

Claims

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Application Information

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IPC IPC(8): E02D5/34E21B3/00E21B7/00
CPCE02D5/34E21B3/00E21B7/001
Inventor 张延杰刘涛高买燕丁红岗高春雷余琨琳赵宏宇陈一村石虎邓边员李相龙潘延连高嘉丽
Owner YUNNAN JIANTOU FOUND ENG CO LTD
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