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Modified buttress capable of reducing buttress volume on horizontal bending point of pressure pipeline and construction method thereof

A pressure pipe and pier technology, which is applied in the field of pressure pipe pier design, can solve problems such as unretrieved technical solutions, and achieve the effects of facilitating production and procurement, reducing volume, and facilitating cutting or lengthening

Pending Publication Date: 2019-11-12
TIANJIN CHENGJIAN UNIV
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] No technical solution similar to this patent was found after searching the prior art

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  • Modified buttress capable of reducing buttress volume on horizontal bending point of pressure pipeline and construction method thereof
  • Modified buttress capable of reducing buttress volume on horizontal bending point of pressure pipeline and construction method thereof
  • Modified buttress capable of reducing buttress volume on horizontal bending point of pressure pipeline and construction method thereof

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Embodiment Construction

[0024] The present invention will be further described in detail below in conjunction with the accompanying drawings and through specific embodiments. The following embodiments are only descriptive, not restrictive, and cannot limit the protection scope of the present invention.

[0025] A modified buttress that reduces the volume of the buttress at the horizontal bending point of the pressure pipeline, see Figure 1-3 , including the pier body 2 formed by cast-in-place concrete, the concrete adopts C15 concrete, the pier body is in the shape of a trapezoid with a narrow front and a wide rear, and a pipeline installation groove is arranged on the front slope of the pier body, and the invention points are:

[0026] A plurality of profiled steels 1 arranged in parallel are inserted and fixed at the rear position of the pier body, and the profiled steels are preferably channel steels or I-beams. The shaped steel is perpendicular to the pier body, and the lower half of the shaped ...

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Abstract

The invention relates to a modified buttress capable of reducing buttress volume on a horizontal bending point of a pressure pipeline and a construction method thereof. The modified buttress capable of reducing the buttress volume on the horizontal bending point of the pressure pipeline comprises a buttress body formed through cast-in-situ of concrete, wherein the buttress body is in a trapezoid shape gradually widened from the front to the rear, a pipeline installing groove is formed in a bevel in the front of the buttress body, a plurality of profile steels arranged in parallel are fixedly inserted into the rear position of the buttress body, the profile steels are perpendicular to the buttress body, the lower half parts of the profile steels are stretched out from the lower end of the buttress body, and form an exposed segment, and the exposed segment makes embedding contact with a soil body. The construction method of the modified buttress capable of reducing the buttress volume onthe horizontal bending point of the pressure pipeline includes: S1, after excavation of a foundation pit for installing the pressure pipeline, inserting the profile steels into the foundation pit; and S2, erecting a template for casting of the buttress body in the foundation pit, pouring the concrete in the template, solidifying the concrete for forming the buttress body, and burying the upper half parts of the profile steels in the concrete. The modified buttress capable of reducing the buttress volume on the horizontal bending point of the pressure pipeline effectively reduces the buttressvolume, and improves shock resistance capability and environment applicability.

Description

technical field [0001] The invention belongs to the technical field of pressure pipeline pier design, and in particular relates to a modified pier and a construction method for reducing the volume of the pier at the horizontal bending point of the pressure pipeline. Background technique [0002] According to the pier structure design calculation theory, when the diameter of the pipeline is less than 350mm, the test pressure is not greater than 1.0MPa and the soil quality is good, or the bending angle of the pipeline is not greater than 10 degrees, no pier is required. However, for pipes with a diameter larger than 350mm, the water test pressure is above 1.0MPa or below 1.0MPa and the soil is soft, especially when the water supply and drainage pipes are turned vertically or horizontally at the turning points due to changes in the direction of water flow and obstruction of water flow, the water pressure will be lost. Balanced, the resultant force of the axial water pressure on...

Claims

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Application Information

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IPC IPC(8): F16L1/06F16L1/028
CPCF16L1/06F16L1/028
Inventor 周燕张凯刘中宪穆伟
Owner TIANJIN CHENGJIAN UNIV
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