Non-demolition type reforming and refitting construction method

A construction method, non-demolition technology, applied in the field of highway construction, can solve problems such as inability to formulate scientific and reasonable construction plans, easy judgment errors, lack of data on old road damage changes, etc. Mature, scientifically appropriate effect of information data processing

Inactive Publication Date: 2017-05-10
石家庄市道桥管理处 +1
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  • Abstract
  • Description
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Problems solved by technology

During the construction process, the evaluation of the damage type and degree of the old damaged road is usually carried out by visual inspection and based on experience. There is no scientific quantitative index, and it is easy to make a wrong judgment, thus formulating a wrong construction plan and wasting manpower and material resources. , and the construction plan has never taken into account the damage speed of the old damaged road, so that the repaired

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  • Non-demolition type reforming and refitting construction method

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Example Embodiment

[0057] Example 1

[0058] 1. A non-demolition type reconstruction construction method, which specifically includes the following steps:

[0059] Step A. Treatment of old pavement:

[0060] a. Disposal of concrete slabs on the old pavement with serious structural damage:

[0061] When the concrete slab of the old pavement layer sinks in a whole block and is broken to a large extent, the whole slab is renovated, the old concrete slab and the damaged part of the base layer are removed, the foundation is leveled and compacted, and the C15 concrete reinforcement is used to pour the base layer to the top of the old base layer. , Apply a thin layer of asphalt with a width of 20 cm on the top of the base layer at the joints of the old concrete slabs, and pour the same concrete with the same label as the old surface layer to the top surface elevation of the old pavement layer, and cut the joints between adjacent plate edges to 1 / 4 of the depth of the plate, remove the debris in the joint, and...

Example Embodiment

[0072] Example 2

[0073] A non-demolition type reconstruction and renovation construction method, specifically including the following steps:

[0074] Step 1. Data collection of old road condition information:

[0075] First, determine the collection lanes for road condition information based on the operating life of the old road, the structure layering composition, and the maintenance over the years, and determine several collection locations based on the road type, project cost, and project environment;

[0076] Then, the road rebound deflection value of the old road, the compressive value of the concrete specimen structure, the cumulative value of road bumps (International Roughness Index), and the pendulum value of the road pendulum instrument (coefficient of friction) are measured at the selected collection location. And the road surface damage rate; the road rebound deflection value is measured by a Beckman beam deflection meter; the concrete specimen structure compression valu...

Example Embodiment

[0098] Example 3

[0099] Such as figure 1 As shown, a pavement structure of a renovated road using the construction method described in Example 1 or Example 2 includes an old road base layer 1, an old pavement layer 2 laid on the old road base layer, and from bottom to bottom. The asphalt concrete leveling layer 3, the two-way geogrid 4 and the middle and upper layer 5 of asphalt concrete are laid on the old pavement layer in sequence.

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Abstract

The invention discloses a non-demolition type reforming and refitting construction method. The method particularly comprises the following four steps: (1) acquiring information data of old road traffic conditions; (2) evaluating the diseases and defects of an old road; (3) formulating an operation scheme for reforming and refitting the old road, and performing construction; (4) evaluating and tracking the refitting effect. When the construction method is used for reforming and refitting an urban old and damaged road with a rigid surface layer, the resources of the old road are fully and reasonably utilized, so that excellent service quality performance is obtained; the service life period of the refitted road is long; furthermore, compared with a mode of dismantling the old road and then building a new road, the construction method greatly reduces old structure demolition work load and resource consumption and greatly shortens the construction period; therefore, the construction method corresponds with the development direction of high quality and low consumption, fastness and high efficiency as well as energy conservation and environmental protection, thus being remarkable in promotion and application values.

Description

Technical field [0001] The invention relates to the field of highway construction, in particular to a non-demolition type reconstruction and repair construction method. Background technique [0002] With the steady development of society and economy, the continuous improvement of municipal infrastructure, the rapid increase in the number of urban roads, and the serious degradation of a large number of existing roads with a large number of years, the performance of the existing roads is severely degraded and no longer meets the requirements of social development. The status is becoming more and more important. How to carry out the transformation and upgrading of old and damaged urban roads in a more high-quality and efficient manner, so that it has good service functions, is a long-term task that needs to be continuously improved in the field of urban construction. [0003] At present, the reconstruction of the old pavement is mainly demolition reconstruction, or simple treatment of...

Claims

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Application Information

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IPC IPC(8): E01C7/14E01C23/06
CPCE01C7/147E01C23/06
Inventor 傅美丽马磊魏薇赫彦斌贾寒月付东生何冰曹润彦马晨溪罗一帆杜冲刘胜斌赵磊
Owner 石家庄市道桥管理处
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