Antiskid pile with hollow outer isosceles trapezoid cross section and in unequal interval arrangement

A technology of isosceles trapezoidal and cross-section, applied in sheet pile walls, excavation, construction, etc., can solve the problems of high cost, large pile body section, large concrete pouring volume, etc., to achieve enhanced structural strength, reduced quantity, and good sliding effect

Active Publication Date: 2013-04-17
CHINA UNIV OF GEOSCIENCES (WUHAN)
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Anti-slide piles with rectangular cross-section have problems such as large pile body section, large amount of concrete pouring required, and high cost

Method used

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  • Antiskid pile with hollow outer isosceles trapezoid cross section and in unequal interval arrangement
  • Antiskid pile with hollow outer isosceles trapezoid cross section and in unequal interval arrangement
  • Antiskid pile with hollow outer isosceles trapezoid cross section and in unequal interval arrangement

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Embodiment 1: A kind of external isosceles trapezoidal hollow cross-section anti-slide pile 1 provided by the present invention, its structure is as follows figure 1 As shown, the poured reinforced concrete anti-slide pile has an outer isosceles trapezoidal hollow cross section 4, and the shape of the inner hollow hole 2 in the cross section is the same as that of the outer isosceles trapezoidal cross section.

[0022] The stress distribution on the anti-slide pile cross section of the present invention is shown in figure 2 . One side of the longitudinal section of the long base of the outer isosceles trapezoid is used as the pile rear end 5 to bear the thrust 10 of the slope body, and the force on this side is tensile stress, which belongs to the tension area 6 . The rear end 5 of the pile is used as the arch foot of the soil arch behind the pile, and the slope body thrust 10 received at both ends is relatively large and complicated. One side of the longitudinal sec...

Embodiment 2

[0026] Embodiment 2: Apply the anti-slide pile 1 with outer isosceles trapezoidal hollow cross-section provided in Embodiment 1 of the present invention to carry out construction with unequal spacing. Because the engineering quantity of each pile of the anti-slide pile of the present invention is not large, the influence on the stability of the landslide body during construction is small, and the construction section of the anti-slide pile is small, and the construction can be carried out by means of mechanical construction. The specific construction steps are as follows:

[0027] ⑴ Level the site, measure and locate the center point where the anti-slide piles are located according to the design drawings, especially pay attention to the fact that the anti-slide piles are not equidistant, and the layout of the plane is characterized by "dense in the middle and sparse on both sides".

[0028] (2) Machines and tools are in place, including excavating equipment such as excavators,...

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Abstract

The invention relates to an antiskid pile with hollow outer isosceles trapezoid cross section and in unequal interval arrangement. The antiskid pile is formed by pouring reinforced concrete, the cross section of the antiskid pile is a hollow outer isosceles trapezoid, the shape of an inner hollow hole of the cross section is identical with that of the cross section, one side of a longitudinal section of a long bottom side of the isosceles trapezoid serves as the rear end of the pile to bear landslide thrust, rebar cages are arranged in the antiskid pile, relatively dense rebars are arranged in the rebar cage on one side of the rear end of the pile, and few rebars are arranged on one side of the front end of the pile. The antiskid pile adopts an unequal interval arrangement method to form pile interval arrangement layout with a dense middle and two sparse sides. Compared with a pile with a rectangular cross section, the antiskid pile can also bear bigger landslide thrust and has excellent anti-bending performance, but the size of the cross section of the antiskid pile is obviously smaller than that of the antiskid pile with the rectangular cross section, so that cubic amount of concrete pouring and rebar using amount can be greatly reduced, and cost is lowered. The antiskid pile with the hollow outer isosceles trapezoid cross section and in unequal interval arrangement is small in construction section, convenient for mechanical construction, safe and simple in construction and wide in popularization and application prospect.

Description

technical field [0001] The invention relates to a reinforced concrete anti-slide pile used for slope engineering and landslide control engineering, in particular to an anti-slide pile with an outer isosceles trapezoidal hollow cross-section arranged at unequal intervals, which belongs to the stability of slopes or slopes. technology field. Background technique [0002] There are many ways to control slopes and landslides, and setting anti-slide piles is a very widely used control scheme. The anti-slide principle of anti-slide piles is to drive the anti-slide piles below the sliding surface, and transmit the thrust of the slope body on the upper part to the lateral soil or rock mass below the piles through the pile body, relying on the lateral resistance of the lower part of the piles to bear The downward thrust of the slope or sliding body keeps the slope or landslide in balance or stability. However, a single anti-slide pile has limited anti-slide ability relative to the ...

Claims

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Application Information

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IPC IPC(8): E02D5/38E02D17/20
Inventor 廖伟李长冬代先尧雍睿王姣梁德明刘庆涛
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)
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