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Side slope supporting structure of step type water-permeable construction waste and construction method

A technology for construction waste and support structures, applied in infrastructure engineering, construction, excavation, etc., can solve problems such as soil slope damage and instability, prevent soil erosion, reduce soaking and erosion, and increase resistance to shear deformation and the effect of anti-slip ability

Active Publication Date: 2021-10-22
SHANDONG TRANSPORTATION INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical task of the present invention is to provide a slope support structure and construction method of step-type permeable construction waste to solve the problem of how to use construction waste to avoid soil slope damage and instability caused by rainwater erosion

Method used

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  • Side slope supporting structure of step type water-permeable construction waste and construction method
  • Side slope supporting structure of step type water-permeable construction waste and construction method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] as attached figure 1 As shown, the slope support structure of the step-type permeable construction waste of the present invention includes a slope surface 9, and a plurality of stepped grooves 10 arranged at intervals are provided on the slope surface 9, and the stepped grooves The bottom of the groove 10 is laid with a drainage pipe 6, and the waterproof geotextile 5 is laid on the drainage pipe 6. The construction waste permeable layer is paved on the waterproof geotextile 5. The construction waste permeable layer fills the stepped groove 10 and the construction waste permeable layer is covered. Build the backfill vegetation layer 1; lay a slope drainage system on the slope surface 9, and the drainage pipe 6 is connected with the slope drainage system;

[0064] The construction waste permeable layer includes a lower permeable structure layer 4, the lower permeable structure layer 4 is located on the waterproof geotextile 5 and several upper permeable structure layers ...

Embodiment 2

[0074] The construction method of the side slope support structure of step type permeable construction waste of the present invention, this construction method is specifically as follows:

[0075] S1. Clean and level the soil slope surface 9, and excavate the slope surface 9 to form stepped grooves 10. The depth of the stepped grooves 10 is 0.8-1.2m; the number of stepped grooves 10 depends on the slope height setting;

[0076] S2. Perform grading treatment on the bottom of the stepped groove 10, with a slope of 3% to 5%;

[0077] S3. Laying drainage pipes 6 on the slope at the bottom of the stepped groove 10; wherein, the drainage pipes 6 are made of PVC material, and a drainage pipe 6 is arranged vertically every 5m, and the diameter of the drainage pipes 6 is 5cm-10cm;

[0078] S4. Laying waterproof geotextiles 5 on the drainage pipe 6; wherein, when the waterproof geotextiles 5 are overlapped, the lap width is not less than 20cm;

[0079] S5. Laying a construction waste ...

Embodiment 3

[0102] The present invention selects an earthy side slope as an implementation example, the side slope height is 4m, and the slope is 30%, and the concrete construction method is as follows:

[0103] (1), the soil slope surface 9 is cleaned and leveled, and the slope surface 9 is excavated into a stepped groove 10, the depth of the stepped groove 10 is 1m, and the number is 4;

[0104] (2), carry out grading treatment at the bottom of the stepped groove 10, the slope is 4%;

[0105] (3), the plain soil layer is compacted with a hand-held tamping machine, and the measured elastic modulus is 41MPa, the CBR value is 9.8%, and the compressive strength is 0.5MPa;

[0106] (4), lay drainage pipe 6 at the bottom of stepped groove 10, drainage pipe 6 material is PVC, vertically every 5m is arranged one, and diameter is 10cm;

[0107] (5), the lower permeable structure layer 4 adopts a single broken concrete block construction waste aggregate, the aggregates are broken concrete blocks...

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Abstract

The invention discloses a side slope supporting structure of step type water-permeable construction waste and a construction method, and belongs to the field of road construction. The technical problem to be solved by the invention is how to utilize the construction waste to avoid soil side slope damage and instability caused by rain wash. According to the technical scheme, the side slope supporting structure comprises a side slope surface, wherein a plurality of step type grooves arranged at intervals are formed in the side slope surface, a drainage pipe is arranged at the bottom of each step type groove, waterproof geotechnical cloth is laid on the upper side surface of each drainage pipe, a construction waste water-permeable layer is laid on the upper side surface of each waterproof geotechnical cloth, and a backfill soil vegetation layer is laid on the upper side surface of each construction waste water-permeable layer; a slope surface drainage system is arranged on the side slope surface; and each construction waste water-permeable layer comprises a lower water-permeable structure layer, the lower water-permeable structure layer is located on the upper side surface of the waterproof geotechnical cloth, a plurality of upper water-permeable structure layers are laid on the upper side surface of the lower water-permeable structure layer, the upper water-permeable structure layers adopt crushed concrete-crushed brick construction waste mixtures, and the lower water-permeable structure layer adopts single crushed concrete block construction waste aggregates.

Description

technical field [0001] The invention relates to the field of road engineering, in particular to a slope support structure and a construction method for stepped water-permeable construction waste. Background technique [0002] Now society is in the process of high-speed urbanization, and infrastructure construction is accelerating. A large amount of construction waste is gradually produced in the process of building demolition and new construction, old city reconstruction, house renovation and expansion, and decoration, mainly consisting of spoils, waste concrete, waste bricks and other solid waste. In recent years, the total annual discharge of construction waste is between 1.55 billion tons and 2.4 billion tons. For a long time, the vast majority of construction waste has been transported to the outskirts of the city for open storage or simple landfill without any treatment. Up to now, the existing amount of construction waste is about 30-40 billion tons. Human beings ar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D17/20E03F3/04
CPCE02D17/20E03F3/04E02D17/202
Inventor 戴保民张磊蒋向阳孙兆云高岳峰韦金城丁海峰吴文娟成永宁张林宏袁帅司青山
Owner SHANDONG TRANSPORTATION INST
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