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Anti-slide pile supporting structure for anchor bolt foundation of highway hard-rock steep slope embankment

A bolt foundation and support structure technology, which is applied in the direction of foundation structure engineering, underwater structures, roads, etc., can solve the problems of high engineering cost, damage to the environment, and difficulty in the construction of anti-slide pile anchorage sections, etc., so as to save indirect cost, reduce the impact on the environment, and help to control the effect of construction quality

Pending Publication Date: 2018-05-29
云南新创新交通建设股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] To sum up, in order to avoid damage to the environment by filling in high embankment sections of hard rock, setting retaining walls between piles is a good form of slope closure, but the excavation of the anchorage section of anti-slide piles is difficult and expensive. Therefore, how to reasonably shorten the setting of the anchorage section has become a design problem that needs to be solved urgently.

Method used

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  • Anti-slide pile supporting structure for anchor bolt foundation of highway hard-rock steep slope embankment
  • Anti-slide pile supporting structure for anchor bolt foundation of highway hard-rock steep slope embankment
  • Anti-slide pile supporting structure for anchor bolt foundation of highway hard-rock steep slope embankment

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Effect test

Embodiment 1

[0019] The anti-slide pile support structure of the anchor bolt foundation of the hard rock steep slope embankment of the highway includes: after the side slope step 7 is excavated, the top platform 2 of the anti-slide pile foundation is drilled. After determining the positions of the four corner points of the anti-slide pile, the foundation steps 4 of the anti-slide pile are manually chiseled. A construction anchor system, the anchor system includes a vertical anchor system 5 and a transverse anchor system 6 . The anti-slide pile foundation 3 and the anti-slide pile cantilever section 1 are poured. When the strength of the pile body reaches 80% of the design value, hang the retaining board and backfill the soil behind the pile, and lay the geogrid system 8 at the same time.

Embodiment 2

[0021] The construction method of the anti-sliding pile of the bolt foundation of the embankment of hard rock and steep slope includes the following steps: ① measurement and setting out. Determine the exact position of the anti-slide pile on site according to the design coordinates; ② level the site, remove the surface soil in the anti-slide pile construction area, excavate the side slope platform according to the width and height of the designed steps, level the top platform of the anti-slide pile foundation, and mark the anti-slide pile foundation The positions of the four corners of the sliding pile are convenient for accurate construction of the pile foundation. The horizontal distance between the outer edge of the platform on the top of the foundation and the slope line is not less than 2.0m, and the outer edge of the platform to the slope should be leveled, and a drainage slope of 4% outward should be set; ③ The foundation should be chiseled. The foundation is excavated ...

Embodiment 3

[0023] The present invention as figure 1 In the reinforced soil anti-pressure closed support structure shown, after the excavation line 7 of the hard rock slope, the top platform 2 of the anti-slide pile foundation is chiseled. After determining the positions of the four corner points of the anti-slide pile, the foundation steps 4 of the anti-slide pile are manually chiseled. A construction anchor system, the anchor system includes a vertical anchor system 5 and a transverse anchor system 6 . The anchor section of the traditional anti-slide pile is replaced by the anchor foundation, which ensures the stability of the anti-slide pile and reduces the excavation of the anchor section, reduces the construction difficulty, saves the project cost, and also reduces the damage to the ecological environment . Pour the pile body and foundation 1, and when the strength of the pile body reaches 80% of the design value, hang the retaining board and backfill the soil behind the pile, and ...

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Abstract

The invention belongs to the technical field of highway subgrade engineering and particularly discloses an anti-slide pile supporting structure for an anchor bolt foundation of a highway hard-rock steep slope embankment. The anti-slide pile supporting structure comprises an anti-slide pile cantilever segment, an anti-slide pile foundation, a foundation anchor bolt system, a basal stepped foundation, and a pile post-backfill soil geogrid system. The anti-slide pile cantilever segment is designed in a rectangular shape with flanges according to specific conditions. The foundation anchor bolt system includes a transverse anchor bolt system and a vertical anchor bolt system, made with HRB400 rebars phi 32 in diameter. The anti-slide pile supporting structure has the advantages that construction difficulty is relieved, engineering construction cost is reduced, construction period is shortened, and environmental influence due to engineering is reduced.

Description

technical field [0001] The invention relates to a support structure for steep road embankments, in particular to anti-slide piles for bolt foundations of hard rock steep road embankments, and belongs to the technical field of road bed engineering. Background technique [0002] The rapid development of highway engineering construction in recent years has gradually improved the road network in the mountainous areas of Southwest my country. High filling and deep excavation should be avoided as much as possible in the construction of mountainous highways. Serious damage to the environment, especially in areas with fragile ecological environment, it will be difficult to recover after damage. In the process of highway construction, the combination of piles and retaining walls is often used to reduce the influence range of high filling and deep excavation. The main forms of retaining walls are pile sheet walls, gravity retaining walls, and soil nail walls. There are artificial exca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D29/02E02D5/74E02D5/80E01C3/04
CPCE01C3/04E02D5/74E02D5/80E02D29/02E02D29/0233E02D29/0241E02D29/0275E02D2300/0007E02D2300/0034E02D2300/0084E02D2200/1635
Inventor 高立字学强李正波王建富侯云昌
Owner 云南新创新交通建设股份有限公司
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