Miniature jet grouting pile group and implementation method

A technology of miniature piles and rotary grouting piles, which is applied in the engineering field, can solve the problems of poor pile-soil coordination deformation and force transmission performance, easy corrosion of reinforcement materials, and easy loss of soil between piles, etc., so as to improve the anti-sliding ability and improve The effect of deformation coordination ability and fast construction speed

Inactive Publication Date: 2016-11-09
NORTHWEST RES INST CO LTD OF C R E C
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a rotary jet micro-pile group to solve the problems of existing micro-pile groups such as poor pile-soil coordination deformation and force transfer performance, poor bending resistance, easy loss of soil between piles during rainfall, and easy reinforcement of the reinforcement. Corrosion, which is likely to cause safety hazards

Method used

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  • Miniature jet grouting pile group and implementation method
  • Miniature jet grouting pile group and implementation method
  • Miniature jet grouting pile group and implementation method

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Embodiment Construction

[0024] The present invention will be further described below in conjunction with the accompanying drawings.

[0025] like figure 1 As shown, the Y direction in the figure is the main sliding direction.

[0026] The utility model relates to a spin-spraying miniature pile group, in which a plurality of miniature pile reinforcing materials (8) are combined to form a rectangular miniature pile group. Arrange five rotary grouting piles (2) at the four corners of the micro pile group and the center of the pile group to solidify the soil between the micro piles.

[0027] The micro pile reinforcement (8) passes through the sliding body (5), the sliding surface (6) and extends into the sliding bed (7).

[0028] In the present embodiment, the length of the micro-pile reinforcing material (8) stretching into the sliding bed (7) is not less than 1 / 2 of the length of the micro-pile reinforcing material (8). The arrangement spacing of the micro-pile reinforcing materials (8) parallel to ...

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PUM

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Abstract

A miniature jet grouting pile group is composed of a plurality of miniature pile bars, jet grouting piles and a cap. The miniature jet grouting pile group is characterized in that a rectangular miniature pile group is formed by the miniature pile bars,five jet grouting piles are arranged at four vertex angles and the center of the miniature pile group, and the top of the rectangular miniature pile group is rigidly connected into a whole through the cap. The miniature jet grouting pile group has the following advantages that (1) the jet grouting technology is introduced to medium-small sized landslide control projects or large-plasticity soil slope reinforcing projects; (2) the construction speed is high; (3) the durability of an anti-sliding support structure is improved; and (4) the arrangement mode is flexible and variable.

Description

Technical field [0001] The invention belongs to the field of engineering, and in particular relates to a cluster type rotary spraying miniature pile group for the treatment of small and medium-sized accumulation body landslides or the reinforcement engineering of soil slopes with relatively large plasticity. Background technique [0002] At present, common excavation anti-slide piles are more maturely used in landslide control and slope reinforcement projects. Large-section excavated reinforced concrete anti-slide piles make full use of the high compressive and shear strength of concrete and the high tensile strength of steel bars, thereby realizing the bending and shear performance of anti-slide piles. When the anti-slide piles are arranged at a certain interval to control landslides or reinforce slopes, they can provide good anti-sliding force and limit the deformation and damage of slopes. The advantages of ordinary excavated anti-slide piles are: (1) wide application ra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D17/20E02D5/46E02D5/28
CPCE02D17/207E02D5/28E02D5/46
Inventor 吴红刚冯文强陈小云张俊德宋响军
Owner NORTHWEST RES INST CO LTD OF C R E C
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