Construction process of urban main road

A technology for trunk roads and construction techniques, applied in the direction of roads, roads, road repairs, etc., can solve problems such as difficult compaction, large water seepage coefficient, cracks and potholes on the road surface

Inactive Publication Date: 2020-11-06
CCCC SHANGHAI DREDGING
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For example, the pavement pavement is difficult to pave and compact due to the large internal void ratio and high water permeability coefficient of the material; on

Method used

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  • Construction process of urban main road
  • Construction process of urban main road
  • Construction process of urban main road

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Experimental program
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Embodiment Construction

[0063] The present invention will be further described below in conjunction with accompanying drawing.

[0064] see Figure 1 to Figure 8 , a kind of construction technique of urban arterial road of the present invention, comprises following process: construction preparation, roadbed excavation, roadbed filling, embankment side slope protection and road surface construction;

[0065] The construction preparation process involves the following steps:

[0066] (1) Determine the boundary of on-site work, investigate the current status of existing above-ground and underground public facilities, and conduct surveys;

[0067] (2) Measure and stake out, use the total station to stake out the red line of the whole line, and verify the original design red line range;

[0068] (3) Clean up the site;

[0069] The subgrade excavation process includes the following steps: base excavation, foundation bed slope modification and road bed compaction;

[0070] When carrying out the base exc...

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Abstract

The invention discloses a construction process of an urban main road. The construction process comprises the steps of construction preparation, roadbed excavation, roadbed filling, embankment slope protection and pavement construction. The construction preparation process comprises the steps of determining an on-site working boundary line, survey and setting out and cleaning a site; the roadbed excavation process comprises the steps of excavating a base, trimming a slope of a subgrade bed and compacting the subgrade bed; the roadbed filling process comprises the steps of survey and setting out, base treatment, filling, soil filling and rolling compaction, filling and excavating joint part construction and fill section drainage; the embankment slope protection process is carried out, and grass planting protection is adopted when the height H of the embankment slope is less than or equal to 3m; when the height H of the embankment slope is greater than 3m, a mortar rubble framework is adopted for protection; a solid revetment is adopted in the fill pond section; the pavement construction process comprises the steps of laying a graded broken stone hardcore, constructing a cement stabilized broken stone base layer and constructing an asphalt concrete surface layer. According to the construction process, the overall stability of the road surface can be improved, and differential settlement is avoided.

Description

technical field [0001] The invention relates to a construction technique for urban arterial roads. Background technique [0002] The construction of urban main roads is a practical project for the people's livelihood. It can comprehensively improve the quality of the city. It will further improve the construction of urban infrastructure, improve the appearance of the city, and create a beautiful, clean, civilized, beautiful, standardized and orderly urban environment. Feelings and happiness are important. However, with the continuous increase of road construction mileage, the quality of road construction has gradually become the focus. For example, the pavement is difficult to pave and compact due to the large internal void ratio and high water permeability coefficient of the material; once the road is put into use, the road surface is prone to quality problems such as cracks and potholes in the high temperature and rainy season after opening to traffic. Contents of the i...

Claims

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Application Information

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IPC IPC(8): E01C3/00E02D17/20E01C19/28E01C19/48E01C19/17E01C19/20E01C19/10
CPCE01C3/00E01C19/1013E01C19/17E01C19/20E01C19/28E01C19/48E02D17/20
Inventor 曹凯飞许海波胡德智陈鹏王杰蒋永辉张亮
Owner CCCC SHANGHAI DREDGING
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