Inverted filter construction technology of geotextile

Abstract

The invention provides an inverted filter construction technology of geotextile. The inverted filter construction technology of the geotextile comprises the following steps that construction preparation is conducted; surveying and setting out are conducted; a certain amount of the geotextile is sequentially laid in the levee crown extending direction, the laying direction of the geotextile is from the levee crown to the levee toe, the transverse end of the geotextile located at the levee crown is arranged to be the laying in-place end, and the other transverse end is the reversed end; during laying, broken stone bags are pressed and supported at the laying in-place end of the geotextile; later, the laying in-place end of a next piece of geotextile is spliced with the reserved end of the front piece of geotextile, a splice picture of the geotextile is completed through the overseam method or the header joint method according to the on-scene condition, after the whole slope surface is paved, broken stones are scattered and laid through a loader to press and support the slope shoulder and the levee toe; and inspection and acceptance are conducted. According to the inverted filter construction technology of the geotextile, broken stone and scattering broken stone bag pressing and supporting are abandoned, series broken stone bag pressing and supporting are adopted, and damage of seepage and waves on the geotextile are effectively avoided.

Description

technical field [0001] The invention relates to the technical field of protection dikes, in particular to a construction process of a geotextile reverse filter layer. Background technique [0002] Along with large-scale economic construction, a large amount of earthwork slope engineering is formed, and its slope protection technology mainly adopts hard material slope protection, such as: concrete and masonry slope protection. Although this kind of hard material can effectively protect the soil from loss, it also has many fatal shortcomings. For example, it is not suitable for the deformation of the soft soil foundation, and it is prone to cracks and damage. This kind of hard material slope protection has also destroyed the landscape and the ecological environment. [0003] Geotextiles can play a role in filtration, sand retention, drainage, isolation, protection, and reinforcement in engineering. Water permeability is generally used to indicate the vertical permeability co...

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Problems solved by technology

[0004] Traditional coastal protection dikes use granular filter materials, whic

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