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Salinized soil roadbed construction method and salinized soil roadbed

A construction method and saline soil technology, which is applied in the field of saline soil roadbed and saline soil roadbed construction, can solve the problems of high equipment entry and exit costs, high construction cost, and complicated construction equipment, so as to ensure construction efficiency and simple construction , the effect of simple equipment

Inactive Publication Date: 2021-04-20
中电建路桥集团有限公司
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, in the existing road construction process, the characteristics of saline soil have caused great damage to the subgrade, but the existing gravel pile construction plan for saline soil subgrade has complex construction equipment, high equipment entry and exit costs, and high construction costs. high cost

Method used

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  • Salinized soil roadbed construction method and salinized soil roadbed
  • Salinized soil roadbed construction method and salinized soil roadbed
  • Salinized soil roadbed construction method and salinized soil roadbed

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] (1) According to the requirements of the design drawings, release the characteristic points of the soft foundation treatment section (starting point, end point number, width on both sides), and review the treatment width and the original surface elevation.

[0050] (2) Drain the stagnant water in the soft ground section of the salt lake road section. Before excavation, measure the necessary cross-sections, then remove the silt and flatten the bottom, such as the soft soil with large and undulating bottom area. If it is larger, steps or gentle slopes should be set up.

[0051] (3) Before replacement, conduct cross-sectional measurement and inspection and acceptance of the base.

[0052] (4) Excavate 30cm of the soft soil layer of the salt lake road section, excavate 20cm before backfilling with gravel soil, and then fill the gravel soil through two layers, each layer with a loose thickness of 30cm, and the vibration compaction density after leveling, and The settlement ...

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Abstract

The invention discloses a salinized soil roadbed construction method and a salinized soil roadbed. The salinized soil roadbed construction method comprises the steps that shallow soft soil with a preset depth is dug out from a salinized soil road section, then gravelly soil is laid and packed layer by layer, and the preset depth is 48-53 cm. Aiming at the special characteristics of salinized soil, the construction method adopts a mode of replacing and packing gravel soil with a specific thickness for shallow soft soil and adopts layered paving and packing, is simple and convenient in construction, simple in equipment, cheap in stock ground, capable of repeatedly utilizing field conditions, safe and reliable, and capable of effectively guaranteeing engineering quality and construction benefits; and damage to the roadbed and the pavement caused by saline soil is avoided or reduced.

Description

technical field [0001] The invention relates to the technical field of road and bridge engineering, in particular to a construction method for a saline soil roadbed and a saline soil roadbed. Background technique [0002] In road and bridge engineering, due to the influence of various factors such as climatic environment, regional distribution and hydrogeological conditions, saline soil has basic engineering characteristics of salt swelling, subsidence and corrosiveness. Diseases of roadbed and pavement. Therefore, in the existing road construction process, the characteristics of the saline soil cause great damage to the roadbed, but the existing gravel pile construction scheme for the saline soil roadbed has complicated construction equipment, high equipment entry and exit costs, and high construction costs. high cost. [0003] In view of this, the present invention is proposed. SUMMARY OF THE INVENTION [0004] The purpose of the present invention is to provide a sali...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C3/00E01C3/04E02D17/18
Inventor 符晓军欧阳光李晓辉倪阳文忠新王礼堂李佳航余海霞
Owner 中电建路桥集团有限公司
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