A Preset Structure for Early Disposal of Barrier Lakes

Abstract

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 potential landslide or mud-rock flow risk river sections. The preset structure is a plurality of parallel flower pipes arranged on the riverbed of the risky river section and the upstream water inlet structure connected thereto. The invention utilizes the principle of osmotic destruction of loose accumulations of the damming body: the preset flower tube is buried by the damming body, and an automatic drainage channel and seepage destruction channel are formed as the water level of the damming lake rises, so as to prevent the water level of the damming lake from rising, And seepage damage occurs around the flower tube, so that the loose accumulation of the damming body gradually loses to the downstream, so as to finally automatically remove the damming body by hydraulic power. The advantage is that the disposal cost of the barrier lake is low, and the risk of the barrier lake and the loss of property and life caused by water discharge are minimized.

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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