Construction method of rigid-flexible composite ecological slope protection of foam concrete embankment slope

Abstract

The invention relates to a rigid-flexible compound ecological slope protection construction method for a foam concrete subgrade slope. The main construction steps include: expanding the foundation construction, pouring the first layer of foam concrete, backfilling the first layer of backfill soil, layered construction for vertical slope protection, and the upper part Slope protection construction. In the present invention, the grass-planting blocks vertically tied at intervals are arranged at intervals on the vertical slope protection part to form rigid protection, and the geonets with built-in grass-planting bags and backfill soil are arranged in layers to form flexible protection. A composite ecosystem of blocks + grass bag + grass blanket. The construction method involved in the invention overcomes the problems of large occupied space, long construction period, easy deformation, easy loss of topsoil, and easy collapse of the slope in the traditional roadbed slope protection technology, and has the advantages of fast construction speed and good safety performance , The slope protection system has a large bearing capacity and strong stability, and has remarkable economic, technological and environmental benefits.

Description

technical field [0001] The invention relates to a construction method of a rigid-flexible composite ecological slope protection system for high and steep foam concrete roadbed slopes, belongs to the field of slope protection engineering, is suitable for roadbed slope ecological protection engineering, and is especially suitable for high and steep foam concrete roadbed slopes Ecological protection engineering. Background technique [0002] Because foam concrete has the characteristics of light texture, good self-support, fast construction, good seismic performance, good sound insulation and heat insulation effect, good fire resistance and waterproof performance, it is especially suitable for high height, steep slope, soft foundation and small embankment land. , Subgrade construction of highway projects with tight schedules. However, in the slope greening protection of high and steep foam concrete subgrades, there are the following difficulties: first, because there is no pla...

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problems of large land occupation, long construction period, easy deformation, easy loss of topsoil, easy slump and high rework and repair rate of the traditional grass planting bag slope protection technology, and propose a high and steep foam concrete roadbed The construction method of the slope rigid-flexible composite ecological slope protection system. The slope protection system adopts the "rigid + flexible" composite slope protection structure. Netting, installation of non-demolition formwork, pouring of roadbed, filling of backfill soil, masonry of grass-planting bricks, turn-around geonetwork, further cycle construction until the construction of the roadbed is completed, and finally lay grass carpet on the slope protection part and implement greening construction

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