Hard cutting pile-forming construction method for secant piles in high-water-level complex geological area

A technology of complex geology and construction methods, applied in drilling equipment and methods, sheet pile walls, earthwork drilling and mining, etc., can solve problems such as inability to form holes, ensure construction quality, more controllable pile quality, and simple equipment Effect

Pending Publication Date: 2021-03-09
CHINA FIRST HIGHWAY ENG +1
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  • Application Information

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Problems solved by technology

[0004] The present invention aims to provide a hard-cut pile construction method for occlusal piles specially used in high-water-level complex geological areas to solve the technical problem that holes cannot be formed due to high-water-level complex geology. It is efficient, fast, safe and reliable, and the construction quality is guaranteed.

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  • Hard cutting pile-forming construction method for secant piles in high-water-level complex geological area
  • Hard cutting pile-forming construction method for secant piles in high-water-level complex geological area
  • Hard cutting pile-forming construction method for secant piles in high-water-level complex geological area

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Embodiment Construction

[0034] Below by embodiment and in conjunction with accompanying drawing, the present invention will be further described:

[0035] A hard-cut pile construction method for occlusal piles in complex geological areas with high water levels, the steps of which are as follows:

[0036] S1. Number each pile position in sequence according to 1, 2, 3, 4, 5, 6...; the odd number is the plain concrete pile position, and the even number is the reinforced concrete pile position; figure 1 As shown, 1, 3, 5, 7, and 9 are plain concrete piles (collectively referred to as I piles); 2, 4, 6, and 8 are reinforced concrete piles (collectively referred to as II piles). Compared with plain concrete piles, reinforced concrete piles need to lower the reinforcement cage before pouring concrete.

[0037] S2. First construct plain concrete piles, use a rotary drilling rig to drill holes, and then pour concrete to form plain concrete piles; the construction of plain concrete piles is separated by more ...

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Abstract

The invention discloses a high-water-level complex geological area secant pile hard cutting pile forming construction method. The method comprises the steps that S1, pile position numbering is conducted; S2, plain concrete piles are constructed firstly, and more than three piles are constructed and separated; S3, after the first plain concrete pile and the third plain concrete pile reach 70% of the design strength, a second reinforced concrete pile is constructed, and more than three piles are constructed and separated; In the step S2 and the step S3, a drill rod of the rotary drilling rig iscylindrical, a plurality of vertical ribs which are evenly distributed in the circumferential direction are arranged on the outer wall of the drill rod, and all the ribs penetrate through the lower end of the outer wall of the drill rod. After the drill hole is drilled in place, reversing and retreating; the plain concrete piles and the hole wall, the reinforced concrete piles and the hole wall, and the plain concrete piles and the reinforced concrete piles are spirally meshed in a zigzag mode after pouring forming. The device is specially used for high-water-level complex geological areas tosolve the technical problem that holes cannot be formed due to high-water-level complex geology, and is efficient, rapid, safe and reliable, and the construction quality is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of construction engineering, and in particular relates to a construction method of an occlusal pile. Background technique [0002] With the vigorous development of my country's economic construction, the transportation infrastructure such as railways and highways has developed rapidly, and the construction level and standards have also been continuously improved. Some lines inevitably pass through areas with high groundwater levels. [0003] The existing construction methods of occlusal piles cannot meet the requirements of the special geological environment in complex geological areas with high water levels, and the construction efficiency is low. The construction quality and construction safety of occlusal piles cannot be guaranteed, and even holes cannot be formed. Contents of the invention [0004] The present invention aims to provide a hard-cut pile construction method for occlusal piles specially us...

Claims

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Application Information

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IPC IPC(8): E02D5/38E02D19/18E02D15/04E21B3/00E21B7/04E21B7/28
CPCE02D5/38E02D15/04E02D19/18E21B3/00E21B7/04E21B7/28
Inventor 欧阳彦郑仁祥李萱廖庆海李泽钿刘晓梅郑星城赖贵辉王海丽林晓瑜
Owner CHINA FIRST HIGHWAY ENG
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