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Water sealing consolidation equipment of cast-in-place pile soil body and construction technology thereof

A cast-in-place pile and water-stop technology, which is applied in soil protection, sheet pile wall, infrastructure engineering and other directions, can solve the problems of difficult to guarantee construction quality and low construction efficiency, so as to ensure the quality of concrete pouring, reduce construction difficulty and ensure The effect of excavation quality

Inactive Publication Date: 2013-05-01
大连共益建设集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

No matter which method is used for construction, there are outstanding problems such as low construction efficiency and difficulty in guaranteeing construction quality

Method used

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  • Water sealing consolidation equipment of cast-in-place pile soil body and construction technology thereof
  • Water sealing consolidation equipment of cast-in-place pile soil body and construction technology thereof
  • Water sealing consolidation equipment of cast-in-place pile soil body and construction technology thereof

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with the accompanying drawings.

[0026] Depend on Figure 1-7 It can be seen that the concentric circle of the cast-in-situ pile to be excavated is measured first, and its diameter is 200 mm larger than the diameter of the cast-in-place pile, and then the circumscribed regular octagon of the circle is measured and released, and each apex of the regular octagon is used as the center of the circle. Φ42 geological drill pipe 5, drill eight pile side grouting holes 4, the pile side grouting holes 4 are 200mm deeper than cast-in-place piles, the geological drill pipe is also used as casing, and a whole Φ38 pile side grouting pipe is set inside the geological drill pipe 5 6. When the pile side grouting hole 4 is drilled to the design depth, adjust the angle of the pile side grouting pipe 6 so that the radial hole midline 9 on the pile side grouting pipe wall is right against the center of the cast-in-place ...

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Abstract

The invention relates to the field of construction technology, in particular to water sealing consolidation equipment of a cast-in-place pile soil body and a construction technology thereof. The water sealing consolidation equipment of the cast-in-place pile soil body comprises a drilling machine, a drilling pipe, a high pressure hose, a grouting pump and a grouting pipe and is characterized in that the grouting pump is connected to the grouting pipe by the high pressure hose; being detachable, the drilling pipe is connected with and driven by the drilling machine; the drilling pipe is internally provided with the grouting pipe; in the invention, a pile border grouting pipe and a pile center grouting pipe are employed to inject cement paste meeting certain requirements into soil body at the periphery of the cast-in-place pile, so that the soil body at the periphery of the cast-in-place pile is equipped with water sealing property and consolidated. In the invention, slurry wall protection or cement wall protection processes are completely omitted, as a result, excavation quality of the cast-in-place pile can be ensured, construction difficulty of pore-forming is greatly reduced, underwater cement pouring construction is avoided, difficulty of pouring the cast-in-place pile body cement is lowered and quality of pouring the cast-in-place pile body cement is ensured. On the whole, construction progress is accelerated and economic benefits are remarkably improved.

Description

Technical field: [0001] The invention relates to the field of building construction, in particular to water-stopping and reinforcing equipment and construction technology for cast-in-place pile soil. technical background: [0002] When constructing cast-in-situ piles under the geological conditions of soft clay, silt, newly deposited cohesive soil, sandy soil or soil layers with rich groundwater and a permeability coefficient greater than 10-2cm / s, due to the extremely unstable soil or rich groundwater , when the hole is formed mechanically, the mud retaining wall is required, and when the hole is artificially formed, the concrete retaining wall is required to avoid problems such as collapse of the pile hole during the excavation process. When using mud retaining wall, in order to ensure the pouring quality of cast-in-place pile concrete, underwater concrete pouring technology must also be used. No matter which method is used for construction, there are outstanding problems...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D5/34E02D5/62E02D3/12
Inventor 林秀影赵传刚王立晶
Owner 大连共益建设集团有限公司
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