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Asphalt concrete road reconstruction and extension roadbed construction process

A technology of asphalt concrete and construction technology, which can be used in infrastructure engineering, roads, roads, etc., and can solve the problems of insufficient connection strength of new and old roadbeds.

Inactive Publication Date: 2021-09-24
驻马店市华中公路设计有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the existing road reconstruction technologies are direct expansion, and do not deal with the side of the old roadbed, which may easily lead to insufficient connection strength between the old and new roadbeds

Method used

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  • Asphalt concrete road reconstruction and extension roadbed construction process
  • Asphalt concrete road reconstruction and extension roadbed construction process
  • Asphalt concrete road reconstruction and extension roadbed construction process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] see Figure 1-2 , a kind of embodiment that the present invention provides: a kind of bituminous concrete highway rebuilds and expands subgrade construction technology, comprises the following steps:

[0067] Step 1: Check the compactness of the side of the old roadbed to determine whether the side compaction of the old roadbed meets the preset standard;

[0068] Step 2: When the side compaction of the old subgrade meets the preset standard, only clean up the debris on the side of the old subgrade, and when the side compaction of the old subgrade does not meet the standard, crush the side of the old subgrade that does not meet the standard , leveling and cleaning side debris;

[0069] Step 3: Level and clean the pre-renovation and expansion area;

[0070] Step 4: Pave the area treated in step 2 and step 3; for step 2, specifically, re-lay the side of the old roadbed when the side compaction degree of the old roadbed does not meet the standard;

[0071] Step 5: Leveli...

Embodiment 2

[0079] refer to Figure 2-5 , on the basis of the above-mentioned embodiment 1, the pulverizing device includes:

[0080] The first connecting rod 201, the second driving pulley 202, the second belt 203, the second driven pulley 204, the first gear 205, the second gear 206, the rotating shaft 207, the first joint 208, the block 209, the first Two joints 210, second connecting rod 211, third joint 212, third connecting rod 213, fourth joint 214, support rod 215, chute 216, slider 217, fourth connecting rod 218, crushing drill bit 219 , the first limit block 220, the tension spring 221;

[0081] The second driving pulley 202 is fixed on the transmission shaft 11, the second driving pulley 202 is connected with the second driven pulley 204 through the second belt 203, and the second driven pulley The pulley 204 is fixed to the first gear 205, and the first gear 205 meshes with the second gear 206;

[0082] The second gear 206 is connected to the inner wall of the housing 1 thr...

Embodiment 3

[0088] refer to figure 2 , on the basis of the above-mentioned embodiment 1, the blanking device includes a blanking chute 2, a feed box 3, a connecting pipe 4, a blanking switch 5, and a blanking port 6;

[0089]The lower chute 2 is fixed to the housing 1, the upper opening of the lower chute 2 is located outside the upper surface of the housing 1, the lower opening of the lower chute 2 is connected to the material box 3, the The lower part of the material box 3 is connected to the switch 5 through the communication pipe 4 , and the switch 5 is connected to the discharge opening 6 located outside the casing 1 and fixed to the casing 1 .

[0090] The working principle and beneficial effects of the above-mentioned technical scheme are as follows: the unloading device uses the unloading trough 2 to receive foreign materials, the material box 3 stores the material, and the unloading operation is performed through the connecting pipe 4 and the unloading port 6, and the unloading ...

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Abstract

The invention discloses an asphalt concrete road reconstruction and extension roadbed construction process which comprises the following steps: step 1, carrying out compaction degree detection on the side of an old roadbed, and judging whether the compaction degree of the side of the old roadbed meets a preset standard or not; step 2, only cleaning sundries on the side of the old roadbed when the old roadbed meets the preset standard, and performing crushing, flattening and cleaning pretreatment on the side of the old roadbed which does not meet the standard and cleaning sundries on the side when the old roadbed does not meet the standard; step 3, carrying out leveling and cleaning pretreatment on the pre-reconstruction and extension area; step 4, laying materials on the areas treated in the step 2 and the step 3; step 5, flattening the materials laid in the step 4, and keeping the new roadbed and the old roadbed at the same horizontal height; and step 6, checking whether the compactness of the newly paved roadbed is consistent with the height of the old roadbed or not. The invention solves the problem of insufficient connection strength of new and old roadbeds caused by direct extension and no treatment on the side of the old roadbed in the existing road reconstruction technology.

Description

technical field [0001] The invention relates to the technical field of road maintenance, in particular to a roadbed construction technology for rebuilding and expanding asphalt concrete roads. Background technique [0002] With the rapid development of our country's social economy, most of the current road functions can no longer meet the growing traffic demand of the society. Therefore, it is imperative to upgrade the original roads. The roadbed widening is the key to the reconstruction project, whether it is design or construction. Most of the existing road reconstruction technologies are direct expansion without processing the side of the old roadbed, which may easily cause insufficient connection strength between the new and old roadbeds. Contents of the invention [0003] In order to solve the problems raised by the above-mentioned background technology, the present invention provides the following technical solutions. [0004] A roadbed construction technology for ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C3/00E01C3/04E02D1/08
CPCE01C3/00E01C3/04E02D1/08
Inventor 荀潇石惠王雨鑫曾伟樊孟杰张莉黄珂杨俊骏陈启
Owner 驻马店市华中公路设计有限公司
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