Preset structure for early treatment of barrier lake

Abstract

The invention belongs to the technical field of water conservancy projects, and particularly relates to a preset structure for early treatment of a barrier lake of a potential landslide or debris flowrisk river reach. The preset structure comprises a plurality of parallel floral tubes arranged on a riverbed of a risky river reach and an upstream end water inlet structure connected with the parallel floral tubes. According to the principle of seepage failure of loose deposits of a barrier lake body, the preset floral tubes are buried by the barrier lake body, an automatic drainage channel anda seepage failure channel are formed along with rising of the water level of the barrier lake, and thus the purposes that the water level of the barrier lake is prevented from rising, seepage failureis generated on the peripheries of the floral tubes, the loose deposits of the barrier lake body are gradually lost towards the downstream, and finally the barrier lake body is automatically dismantled through water power are achieved. The preset structure has the advantages that the treatment cost of the barrier lake is low, and the risk of the barrier lake and property and life losses caused bywater drainage are reduced to the maximum extent.

Description

technical field [0001] The invention belongs to the technical field of water conservancy engineering, and in particular relates to a preset structure for early disposal of barrier lakes in river sections with potential landslide or mud-rock flow risks. Background technique [0002] Barrier lakes are mostly formed by landslides or landslides caused by earthquakes, which cause landslides to block river valleys or store water in river beds. my country, especially the western region, has complex topography and geology and is located in a zone of active seismic activity. The risk probability of barrier lakes is high, which endangers the safety of the downstream. The blocking body of the barrier lake is not fixed. If there is no human intervention, as the water level of the barrier lake rises, the barrier body will be washed, eroded, dissolved, and collapsed. Far more than the flood disaster caused by general heavy rain. For the dangerous barrier lake, there is no fast and low-r...

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Problems solved by technology

[0004] The purpose of the present invention is to invent a preset structure for the early disposal of a dammed lake, in order to overcome the defects that the existing method of disposing of the dammed body consumes a large amount of manpower, material and financial resources, and has a high risk of flooding. The principle of osmotic damage, by artificially manufacturing drainage channels and osmotic damage channels, to achieve the purpose of inhibiting the water level of the barrier lake from rising or rising too fast, and at the same time gradually eroding and removing the damming body in the way of osmotic damage

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