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Grouting-type micro steel pipe pile and grouting reinforcement method

A technology of grouting reinforcement and steel pipe piles, which is applied in excavation, sheet pile walls, construction, etc., can solve the problems of single reinforcement means, repeated waste, and difficult construction, and achieve simple construction technology, small construction interference, Effect of increasing compactness and bearing capacity

Inactive Publication Date: 2014-06-18
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the roadbed subsidence, slope instability, bridge head jumping and other diseases that have occurred on the completed roads, the commonly used technical methods have shortcomings such as long reinforcement period, difficult construction, repetitive waste, and single reinforcement method.

Method used

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  • Grouting-type micro steel pipe pile and grouting reinforcement method
  • Grouting-type micro steel pipe pile and grouting reinforcement method

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Comparison scheme
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Embodiment Construction

[0037] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0038] Such as Figure 1-2 As shown, a kind of grouting type micro-steel pipe pile, comprises steel pipe 2, and the side wall of described steel pipe 2 is provided with multiple sets of grouting hole groups with intervals along the axial direction, and the outside of each group of grouting hole groups is covered with Rubber sealing ring 4. Each of the pulp outlet groups is composed of four uniformly distributed pulp outlet holes 5 on the same horizontal plane.

[0039] The grouting reinforcement method of the grouting micro-steel pipe pile is as follows:

[0040] (1) Micro steel pipe pile technology

[0041] 1) Technical points:

[0042] ①Drilling

[0043] Drill to the depth required by the design, the hole diameter is 75-127mm, determined according to the diameter of the steel pipe 2 used in the design, the drilling is required to be vertical, the...

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Abstract

The invention relates to a grouting-type micro steel pipe pile, comprising a steel pipe, wherein a plurality of spaced slurry outlet groups are formed in the side wall of the steel pipe along an axial direction, and a closed rubber loop is sleeved outside each slurry outlet group. Each slurry outlet group is composed of a plurality of slurry outlets uniformly distributed on a same horizontal plane. The invention further discloses a grouting reinforcement method of the steel pipe pile. According to the invention, a reinforcement effect is obvious, the vertical bearing capacity and the slope stability of a body to be reinforced can be increased from multiple aspects, nonuniform sedimentation can be effectively reduced, and the characteristics of small construction interferences, no pollution, simple construction process, low manufacture cost and the like are achieved at the same time.

Description

technical field [0001] The invention relates to a structural engineering technology, in particular to a grouting type micro-steel pipe pile and a grouting reinforcement method. Background technique [0002] With the development of science and technology, the technical means to improve the vertical bearing capacity in engineering are becoming more and more diverse and reasonable. Commonly used technical means include: dynamic compaction method, composite foundation method, vertical bearing pile method, grouting method, etc. Different technical means are suitable for different engineering stages and geological conditions. For roadbed subsidence, slope instability, bridge head jumping and other diseases that have occurred on the completed roads, the commonly used technical methods have shortcomings such as long reinforcement period, difficult construction, repetitive waste, and single reinforcement method. Contents of the invention [0003] The object of the present inventio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D5/38E02D5/62E02D17/20
Inventor 管延华宋修广庄培芝张宏博郭瑞
Owner SHANDONG UNIV
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