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Stepwise construction method for clearing surface of highway subgrade

A construction method and surface cleaning technology, applied to roads, roads, buildings, etc., can solve problems such as excessive damage and environmental damage

Inactive Publication Date: 2011-01-26
CHINA ACAD OF TRANSPORTATION SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to overcome the defect that the damage range is too large caused by the one-step surface cleaning method of the existing road construction, and provide a step-by-step construction method for roadbed surface cleaning. The technical problem to be solved is to minimize the surface cleaning Damage to vegetation and topsoil resources, which is more suitable for practical use and has industrial utilization value
[0010] The present invention proposes a step-by-step construction method for roadbed surface cleaning for different types of roadbed construction, which solves the problem of excessive environmental damage caused by surface cleaning construction, and preserves precious plant resources and topsoil resources

Method used

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  • Stepwise construction method for clearing surface of highway subgrade
  • Stepwise construction method for clearing surface of highway subgrade
  • Stepwise construction method for clearing surface of highway subgrade

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0080] see figure 1 , 2 As shown in the schematic diagram of the step-by-step construction of the filling embankment, a step-by-step cleaning method for highway embankment construction in a preferred embodiment of the present invention is carried out according to the following steps:

[0081] (1) Before the construction of the clear list, firstly send a special person to conduct a detailed investigation of the plant resources within the land area of ​​each construction bid section within 8, collect the rare protected plants along the line and the plants that need to be preserved and transplanted, make a book, and distribute it to the construction unit. Pay attention to protection during construction. At the same time, according to the different types of land use, classify the land along the road, and investigate the soil thickness of the topsoil in the range 8 of each type of road.

[0082] (2) The first step of surface cleaning is to clean the surface on both sides of the h...

Embodiment 2

[0103] see image 3 As shown in the schematic diagram of step-by-step cleaning of excavated roadbed, a step-by-step cleaning method for highway roadbed construction according to the preferred second embodiment of the present invention is carried out according to the following steps:

[0104] (1) For the preparation work before clearing the watch, refer to the method described in step (1) in Example 1.

[0105](2) The first step of surface cleaning construction is to clean the surface on both sides of the highway center line 1. The scope of the first step of surface cleaning reaches the width of the designed road surface width 2. At the same time, the classification of vegetation and the soil resources of the topsoil layer are carried out during the surface cleaning construction. Collect work.

[0106] (3) After the first step of surface cleaning construction is completed, determine the scope 3 of the second step of surface cleaning construction, that is, the range from the ou...

Embodiment 3

[0110] see Figure 4 As shown in the schematic diagram of the secondary surface cleaning construction of the half-filled and half-excavated roadbed, a step-by-step construction method for highway roadbed surface cleaning in the preferred third embodiment of the present invention is carried out according to the following steps:

[0111] (1) For the preparation work before clearing the watch, refer to the method described in step (1) in Example 1.

[0112] (2) The first step of surface cleaning construction is to clean the surface on both sides of the highway center line 1. The scope of the first step of surface cleaning reaches the width of the designed road surface width 2. At the same time, the classification of vegetation and the soil resources of the topsoil layer are carried out during the surface cleaning construction. Collect work.

[0113] (3) After the first step of surface cleaning is completed, the second step of surface cleaning scope 3 is determined, which is the ...

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Abstract

The invention relates to a stepwise construction method for clearing the surface of a highway subgrade, comprising the following steps: firstly, carrying out first-time surface clearing construction at the two sides of the middle line of the highway with the surface clearing range being the width of the designed subgrade; secondly, clearing the surface in the range from the outer side of the range of the width of the subgrade to a slope toe line or in a slope opening line; and finally, carrying out surface clearing on vegetation from the outer sides of the slope toe line and the slope opening line to the land acquisition boundary according to the needs of other highway engineerings, thus furthest protecting the vegetation and soil resources of a surface soil layer. The stepwise construction method has the obvious benefits of being capable of obviously reducing the disturbance areas in the construction of clearing the surface, reducing the damage on the plants and the soil resources of the surface soil layer, and being capable of carrying out ecological restoration by utilizing the cleared vegetation and soil resources of the surface soil layer.

Description

technical field [0001] The invention relates to a surface cleaning method in the roadbed construction field of highway construction, in particular to a step-by-step construction method for surface cleaning of roadbeds. Background technique [0002] The surface cleaning construction of highway subgrade for removing ground attachments is the first stage of roadbed construction after the completion of highway design, and is a key link in highway environmental protection. For a long time, there have been no relevant procedures and specifications to guide surface cleaning construction, resulting in The construction scope of surface cleaning has been expanded and the ecological damage has been serious. Foreign countries have started early and made great efforts in the protection of road construction vegetation and topsoil resources, and are supported by relevant administrative means, legal systems, and construction methods. In recent years, my country's highway construction units...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C3/00
Inventor 陈建业孔亚平陶双成王倜陈学平
Owner CHINA ACAD OF TRANSPORTATION SCI
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