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Single gabion for water damage protection of highway subgrade and construction method

A construction method and subgrade technology, applied in the direction of coastline protection, etc., can solve problems such as instability and loss, lack of effective support, poor deformation characteristics of the dam body, etc.

Inactive Publication Date: 2021-09-07
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, there are many kinds of materials for constructing shun dams and spur dams, which can be divided into rigid materials and flexible materials according to the deformation characteristics of materials, but all have defects: 1) Rigid materials such as concrete and masonry, etc. In severe river sections, with the occurrence of foundation erosion and uneven settlement, the dam body will suffer structural fracture, overturning and other damage due to its poor deformation characteristics
2) Flexible materials such as rockfill, gabion gabion, etc., can adapt to a certain degree of river bed deformation, but the strength is relatively low, and there is no effective support. Protection failure

Method used

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  • Single gabion for water damage protection of highway subgrade and construction method
  • Single gabion for water damage protection of highway subgrade and construction method
  • Single gabion for water damage protection of highway subgrade and construction method

Examples

Experimental program
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Embodiment 1

[0050] This embodiment is based on the fact that some road sections of the Karakoram Highway (KKH) in Pakistan are located in alpine and canyon areas. Highway 8 is built along the river, and the river is turbulent. The river surges every year during the rainy season (June to September), which seriously affects the safe operation of Highway 8. threaten.

[0051] The section of highway 8 pile number K737+850 to K737+970 is located on the concave bank of the river. This section has been damaged by water for many times in the floods over the years. The recent investigation found that the corner of the flooded embankment retaining wall 6 used for protection has been damaged. Comparatively serious erosion, if allow soaked subgrade retaining wall 6 to continue to be scoured by river water, wall corner is further eroded, further causes the integral instability of retaining wall 6, and the subgrade that loses protection also can be washed away very soon. Therefore, another layer of per...

Embodiment 2

[0061] This embodiment is based on the fact that some road sections of the Karakoram Highway (KKH) in Pakistan are located in alpine and canyon areas. Highway 8 is built along the river, and the river is turbulent. The river surges every year during the rainy season (June to September), which seriously affects the safe operation of Highway 8. threaten.

[0062] The river near the highway 8 pile number K701+700 to K701+800 section is wider, about 200 m, and the change of the main river is close to the highway 8, which intensifies the erosion of the roadbed, causing the lower part of the roadbed to be hollowed out. In view of the above situation, the preferred method of the present invention The gabion spur dam is used for protection and plays the role of deflecting flow and revetment. The steps are as follows:

[0063] Construction is carried out in the dry season. According to the protection scope, three spur dikes are used to form a spur dike group for protection; the effecti...

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Abstract

The invention provides a single gabion for water damage protection of highway subgrade and a construction method. According to the single gabion, an upper horizontal steel bar unit comprises a plurality of upper horizontal steel bars which are connected in sequence; a lower horizontal steel bar unit comprises a plurality of lower horizontal steel bars which are connected in sequence; a vertical steel bar unit comprises a plurality of vertical steel bars; an upper horizontal steel bar and a lower horizontal steel bar are arranged between every two adjacent vertical steel bars; the lower end of the vertical steel bar is located below the lower horizontal steel bar unit; a gabion net is arranged between the adjacent vertical steel bars and between the adjacent upper horizontal steel bar and lower horizontal steel bar; and a space defined by the upper horizontal steel bar units, the lower horizontal steel bar units and the vertical steel bar units is filled with block stones. The stone blocks inside the single gabion can be adjusted downwards; a scouring pit is filled in real time; further expansion of the scouring pit is slowed down; the overall instability of a gabion dam body can be effectively prevented; and the strength of a bank protection structure is guaranteed by inserting the vertical steel bars into a riverbed.

Description

technical field [0001] The invention belongs to a gabion revetment structure, and in particular relates to a gabion monomer and a construction method for protecting roadbeds from water damage. Background technique [0002] Riverside roads in mountainous areas are generally at risk of flooding, especially for road sections with poor slope bank geological conditions, river crown erosion, and river banks where continued erosion will pose safety hazards to the roadbed. It is very necessary. This measure helps to improve the flow pattern of the nearby water flow, reduce the flow velocity of the water flow, and reduce the erosion of the water flow on the river bank or roadbed protection. [0003] In the prior art, there are many kinds of materials for constructing shun dams and spur dams, which can be divided into rigid materials and flexible materials according to the deformation characteristics of materials, but all have defects: 1) Rigid materials such as concrete and masonry, ...

Claims

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Application Information

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IPC IPC(8): E02B3/12
CPCE02B3/12
Inventor 郑宫龑章定文汪淼
Owner SOUTHEAST UNIV
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