Soil cement long wall continuous arch structure for slope reinforcement

A cement-soil and long-wall technology, applied in sheet pile walls, foundation structure engineering, excavation, etc., can solve the problems of uneconomical, steel or concrete consumption, and achieve good anti-skid ability and good anti-seepage ability

Inactive Publication Date: 2012-05-09
HOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These two forms use the arch structure to bear the horizontal thrust, and then transmit the horizontal thrust to the arch foot, but it consumes a lot of steel or concrete, which is uneconomical

Method used

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  • Soil cement long wall continuous arch structure for slope reinforcement
  • Soil cement long wall continuous arch structure for slope reinforcement
  • Soil cement long wall continuous arch structure for slope reinforcement

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Such as Figure 1-3 As shown, the cement-soil long wall multi-arch structure of the present invention comprises N anti-slip walls 1 arranged side by side, and said N is a natural number not less than 2, and the length of the anti-slip wall 1 is 5-20m, and the height is 5-20m. 18m; every two adjacent anti-slip walls 1 are provided with arc-shaped walls 2, and the two sides of the arc-shaped walls 2 are respectively connected with two adjacent anti-slip walls 1, and the two adjacent anti-slip walls 1 The distance between the centerlines of the anti-slip wall 1 is 4-8m; the horizontal section of the arc-shaped wall 2 is arc-shaped, and the central angle of the arc-shaped circle is 30°-180°. The distances between the center lines of the walls are equal, and the height of the arc-shaped wall 2 is equal to that of the anti-slip wall 1.

[0021] The anti-slip wall 1 is formed by interlocking dry spray mixing piles or wet spray mixing piles, the diameter of the mixing piles is...

Embodiment 2

[0024] The cement-soil long wall multi-arch structure type of the present invention is as follows figure 1 , figure 2 and image 3 As shown, the structure mainly includes: arc wall 2 and anti-slip wall 1 . The horizontal section of the arc-shaped wall 2 is arc-shaped with a central angle of 30° to 180°, preferably 180°. The arc-shaped wall with this arc has the best force transmission effect and is convenient for construction. The anti-slip wall 1 and The arc-shaped wall 2 is formed by interlocking dry spray mixing piles or wet spray mixing piles, and the diameter of the mixing piles is 500-1000mm. The mixing pile lap of the cement-soil long wall double-arch structure of the present invention is as follows: Figure 4 , the overlapping length of the mixing pile is not less than 200mm; every two adjacent anti-slip walls 1 are provided with an arc-shaped wall 2, and the upper ends of the two anti-slip walls 1 are occluded with the two sides of the arc-shaped wall 2 . The ge...

Embodiment 3

[0026] The structure of the present invention is implemented and arranged as follows:

[0027] The cement-soil long-wall and multi-arch structure transmits the horizontal thrust generated by the sliding force of the soil slope to the lower soil layer through the continuous multi-span long-wall and multi-arch structure, thereby greatly improving the anti-sliding stability of the soil slope. The cement-soil long-wall multiple-arch structure is suitable for soil slopes and filling works where the natural strength of the foundation is insufficient. Set in weak soil with poor foundation stability, such as silt and silty soil, loose sand, newly deposited cohesive soil and silt, filling soil with characteristic value less than 130, flow plastic loess. Medium soft soil: slightly dense gravel, coarse medium sand, fine silt except loose, cohesive soil and silt with eigenvalue less than 150, filling soil with eigenvalue greater than 130, plastic new loess.

[0028]Cement-soil long wall ...

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Abstract

The invention discloses a soil cement long wall continuous arch structure for slope reinforcement. The structural form has high slip-resisting capacity and high economic efficiency, and is very suitable for slip-resisting reinforcement treatment in soft soil slopes and soft foundation filling engineering in the engineering fields of buildings, traffic, water conservancy, mines and the like. The long wall continuous arch structure comprises an arc-shaped wall and a slip-resisting wall, wherein both the slip-resisting wall and the arc-shaped wall are formed by engaging dry spray stirring piles or wet spray stirring piles. In the working mechanism, a long wall continuous arch embedded into a slope body or a soft soil foundation passes through a most dangerous slip surface, soil is retained by using a stirring pile arc-shaped wall, the stirring pile arc-shaped wall is used for transferring horizontal push force to a stirring pile slip-resisting wall, and the stirring pile slip-resisting wall is used for finally transferring horizontal push force to a lower soil layer. By adopting the structure, the compression resistance and shearing resistance of soil cement can be brought into full play, and pile body tensile stress is avoided.

Description

technical field [0001] The invention relates to a cement-soil long wall double-arch structure suitable for anti-sliding reinforcement treatment of soft soil slopes and soft foundation filling projects in the fields of construction, transportation, water conservancy, mining and the like. Background technique [0002] At present, in various basic construction fields, anti-slide piles are used as the main means of landslide control. The cement-soil pile composite foundation method is often used in the foundation reinforcement treatment of filling works on soft soil foundations, but the cement-soil piles inserted into the hard soil layer have a cantilever effect in the foundation soil layer and are prone to bending, which greatly weakens its resistance. sliding ability and reduce engineering reliability. Concrete piles are also used in some cases, in various forms. Such as arm type monopile, bent pile, anchor pile. However, the cantilever pile needs to consume a lot of steel ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D17/20E02D5/46
Inventor 李守德徐惠儿李琴琴田正宏张福海
Owner HOHAI UNIV
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