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Method for constructing road foundation by using bituminous concrete paver

A technology of asphalt concrete and pavement base, which is applied to cohesive pavement paved on site, roads, roads, etc., which can solve the problems of low level of mechanization of base construction technology and low construction quality, and reduce the separation of coarse and fine aggregates. Quick construction and reduced cracks

Active Publication Date: 2011-02-16
LONGJIAN ROAD & BRIDGE
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method of using asphalt concrete paver to carry out road base construction, which is used to solve the problems of low mechanization level and low construction quality of existing base construction technology

Method used

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  • Method for constructing road foundation by using bituminous concrete paver
  • Method for constructing road foundation by using bituminous concrete paver

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Embodiment 1

[0022] In this embodiment, the asphalt concrete paver of DEMAG model is used for paving. Firstly, select the initial elevation angle value of the paver, determine the loose square coefficient k of the paving layer, measure the camber of the paved structural layer with a level gauge, and determine the paver’s The pressure of the tamper and the pressure of the vibrating beam, use the 500-type mixer to mix the base materials, adjust the position of the screw conveyor and the front side baffle, and adjust the distance between the screw conveyor and the ground so that the thickness of the paving is 1.25. The speed of 2 meters per minute is paved with an asphalt concrete paver, and then rolled with a vibratory roller.

[0023] In this embodiment, in order to ensure the quality of the paving base, the following methods are also used to determine the relevant technical parameters of the asphalt concrete paver:

[0024] (1) Select the initial elevation angle value of the paver

[0025...

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Abstract

The invention relates to a method for constructing ground foundation by a bituminous concrete paver. In the prior art, as the mechanization level of construction is not high, the phenomenon of poor control of the mixing rate of a mixed material, unstable dosage of a stabilizer, uneven and impervious stirring and watering and no guarantee of elevation and leveling degree are generated. The method comprises that the following steps: firstly, selecting an initial elevation value of the paver; determining Matsukata coefficient K of a paving layer; measuring the camber of a structural layer completed by the pavement through a water level; determining the hammer pressure and the vibrating beam pressure of the paver; intensively stirring a foundation material by a stirrer; adjusting the positionsof a spiral conveyor and an anterior baffle plate; adjusting the distance between the spiral conveyor and the ground to the paving thickness of 1.25; and paving the ground by the bituminous concretepaver at a speed of 2 meters per minute and then grinding the ground by a vibrating type road roller. The method is used for constructing an asphalt concrete road foundation.

Description

Technical field: [0001] The invention relates to a construction method of a pavement base, in particular to a method of using an asphalt concrete paver to construct a pavement base. Background technique: [0002] The base layer is an important part of the road surface. It mainly plays a load-bearing role, bears the vertical force of the vehicle load from the surface layer, and spreads it into the cushion and roadbed. Therefore, the base layer is required to have sufficient strength and rigidity, and sufficient water stability and freezing stability. There are two kinds of base course: inorganic binder stabilized type and granular material stabilized type. The inorganic binder stabilized type has high rigidity, good stability and is economical. However, this kind of road surface also suffers from different degrees of damage during use. An important reason is that the road surface The construction quality of the base layer cannot be guaranteed. [0003] In the early 1980s, t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01C7/26
Inventor 史铁桥马勇姜月萍孙雪飞
Owner LONGJIAN ROAD & BRIDGE
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