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Construction method for building pavement on soft foundation

A construction method and technology for weak foundations, applied in roads, roads, buildings, etc., can solve problems such as cracking and damage, road depression and deformation, and achieve the effects of stable road structure, reduced construction costs, and reduced pollution.

Inactive Publication Date: 2019-05-14
广东平润建设工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Because the road surface is mainly used for transportation, the geological environment that the road crosses is very complex, among which the silt land is the most common soft ground geological environment. Because the road surface needs to carry a large load, especially the load of logistics vehicles, the road surface is often subject to a large local load. , when the strength of the foundation is insufficient, the road surface is prone to sag, deformation or even cracking and damage, and bypassing the muddy ground to avoid the soft ground geological environment will greatly reduce the transportation efficiency of the road surface, so there is still room for improvement

Method used

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  • Construction method for building pavement on soft foundation

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] A construction method for building pavements on weak foundations, comprising the following steps:

[0048] (1) To detect the depth of silt, as follows:

[0049] The silt depth is detected by ground radar, and according to the design drawings, the position of the pile foundation is marked and the silt depth there is marked.

[0050] (2) Sink into the mold tube, as follows:

[0051] Choose mold tubes of different lengths according to the depth of the silt, and the length of the mold tube is 110% of the depth of the silt where the mold tube sinks;

[0052] Sink the mold tube into the corresponding position according to the mark, the mold tube sinks until the bottom of the mold tube touches the rock layer, the mold tube sinks in the vertical direction, and adjusts the verticality of the mold tube when the mold tube sinks with a spirit level ;

[0053] The inner diameter of the mold tube is 3000mm.

[0054] (3) Pouring cement slurry, as follows:

[0055] Pour cement slurr...

Embodiment 2

[0084] A construction method for building pavements on weak foundations, comprising the following steps:

[0085] (1) To detect the depth of silt, as follows:

[0086] The silt depth is detected by ground radar, and according to the design drawings, the position of the pile foundation is marked and the silt depth there is marked.

[0087] (2) Sink into the mold tube, as follows:

[0088] Choose mold tubes of different lengths according to the depth of the silt, and the length of the mold tube is 115% of the depth of the silt where the mold tube sinks;

[0089] Sink the mold tube into the corresponding position according to the mark, the mold tube sinks until the bottom of the mold tube touches the rock layer, the mold tube sinks in the vertical direction, and adjusts the verticality of the mold tube when the mold tube sinks with a spirit level ;

[0090] The inner diameter of the mold tube is 2500mm.

[0091] (3) Pouring cement slurry, as follows:

[0092] Pour cement slu...

Embodiment 3

[0121] A construction method for building pavements on weak foundations, comprising the following steps:

[0122] (1) To detect the depth of silt, as follows:

[0123] The silt depth is detected by ground radar, and according to the design drawings, the position of the pile foundation is marked and the silt depth there is marked.

[0124] (2) Sink into the mold tube, as follows:

[0125] Choose mold tubes of different lengths according to the depth of the silt, and the length of the mold tube is 112% of the depth of the silt where the mold tube sinks;

[0126] Sink the mold tube into the corresponding position according to the mark, the mold tube sinks until the bottom of the mold tube touches the rock layer, the mold tube sinks in the vertical direction, and adjusts the verticality of the mold tube when the mold tube sinks with a spirit level ;

[0127] The inner diameter of the mold tube is 2000mm.

[0128] (3) Pouring cement slurry, as follows:

[0129] Pour cement slu...

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Abstract

The invention relates to the technical field of pavement, and provides a construction method for building pavement on soft foundation. The construction method solves the problem that when strength offoundation is insufficient, the pavement is liable to sink and deform and even crack and be damaged. The construction method comprises the following steps that (1), the sludge depth is detected; (2),a mold pipe is sunk; (3), cement slurry is poured; (4), pile sinking is conducted; (5), the mold pipe is disassembled; (6), the sludge is reinforced; (7), a concrete base and subgrade on two sides arepoured; and (8), a cushion layer and a surface layer are laid. Pile bodies are adopted to provide pressing resistance and bending resistance. Cement piers are fixedly connected to lithosphere. The connecting area between the cement piers and the sludge is large, then the stone blocks are sunk in a matched mode, the gravity of the stone blocks is adopted to generate high friction with the lithosphere, and the gravity of the stone blocks is adopted to generate inertia for in-situ retaining. The pile bodies are constrained stably, displacement of the pile bodies is avoided, the pile bodies are guaranteed to stably support the concrete base, and the pavement structure is stable.

Description

technical field [0001] The invention relates to the technical field of road surfaces, in particular to a construction method for building road surfaces on weak foundations. Background technique [0002] Because the road surface is mainly used for transportation, the geological environment that the road crosses is very complex, among which the silt land is the most common soft ground geological environment. Because the road surface needs to carry a large load, especially the load of logistics vehicles, the road surface is often subject to a large local load. , When the foundation strength is insufficient, the road surface is prone to sag, deformation or even cracking and damage, and bypassing the muddy ground to avoid the soft ground geological environment will greatly reduce the transportation efficiency of the road surface, so there is still room for improvement. Contents of the invention [0003] In view of the deficiencies in the prior art, the purpose of the present in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C3/00E01C3/04
Inventor 孙小杰戴罗生唐剑平李丽明李永光王嘉裕杨平
Owner 广东平润建设工程有限公司
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