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Construction method of HDPE film for road embankment seepage prevention

A construction method and road technology, applied in the directions of roads, roads, buildings, etc., can solve the problems of HDPE anti-seepage membrane damage, etc., and achieve the effect of reducing damage, ensuring reliability, and ensuring anti-seepage effect.

Inactive Publication Date: 2019-05-03
江苏控华建工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If there is no scientific and reasonable construction plan, it is easy to cause the HDPE anti-seepage membrane to be damaged during the repeated impact of terrain changes or vibration compaction of 22t heavy-duty road rollers and heavy traffic loads in the later period.

Method used

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  • Construction method of HDPE film for road embankment seepage prevention
  • Construction method of HDPE film for road embankment seepage prevention
  • Construction method of HDPE film for road embankment seepage prevention

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Embodiment 1

[0031] Reference manual attached figure 1 and figure 2 , present embodiment provides a kind of HDPE film is used for the construction method of anti-seepage of road embankment, comprises the following steps:

[0032] S1. Excavation of foundation trench: set up a groove within the scope of the road land, the cross section of the groove is an isosceles trapezoidal structure, the surface of the groove is solid and flat, and the corners are smooth. Specifically, the foundation groove should meet the requirements of no cracks, no obvious sharp protrusions, no water seepage, water collection, organic residues and harmful substances that may cause environmental pollution; the radius of the arc at the corner of the foundation groove is not less than 50cm.

[0033] S2. Laying bentonite waterproof blanket: laying a layer of bentonite waterproof blanket 1 on the base groove by direct overlapping, specifically, the overlapping width is 15cm.

[0034] S3. Lay the bottom HDPE anti-seepag...

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Abstract

The invention relates to a construction method of HDPE film for road embankment seepage prevention, comprising the steps that a foundation trench is excavated, and a groove is provided within the range of land for roads; bentonite waterproof blankets are paved, and the foundation trench is paved with a layer of bentonite waterproof blanket by adopting a manner of directly overlapping; bottom HDPEimpermeable film is paved, and the bentonite waterproof blankets are paved with the HDPE impermeable film, and the lap joint width between films is no less than 15cm, and the seams are welded by meansof three-seam welding manner; industrial waste is backfilled, and the foundation trench is divided into two layers for conducting industrial waste filling and compaction; top HDPE impermeable films are paved, and the industrial waste is paved with the HDPE impermeable films, and sealing welding is conducted on the bottom HDPE impermeable film and the top HDPE impermeable film; checking and accepting, and construction of an insulation protection layer are conducted: checking and accepting are conducted after construction is completed, results are recorded after the accepting is qualified, andthe construction of an insulation protection layer is immediately conducted. The invention is advantageous in that with the construction method, good waterproof effect and quite long service lifetimecan be guaranteed.

Description

technical field [0001] The invention relates to the technical field of roadbed engineering, in particular to a construction method for HDPE film used in roadbed anti-seepage. Background technique [0002] In road construction, the subgrade is an important factor to ensure the long-term stability of the pavement quality. A well-tamped, uniform and high-quality subgrade can make the road surface stably placed on it, and cracks and sections are not easy to occur. However, in reality, due to water seepage and other factors, it is easy to cause the subgrade to be hollow and subsidence, and then the road surface will subside and break. As a result, the good pavement will be scrapped or rebuilt due to problems with the subgrade, which is a serious waste of manpower and material resources, and also affects the nearby people. Therefore, the anti-seepage problem of the roadbed needs to be paid enough attention. [0003] In view of the above problems, it is generally adopted to lay a ...

Claims

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Application Information

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IPC IPC(8): E01C3/00E01C3/06
Inventor 吕亮
Owner 江苏控华建工有限公司
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