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Straight stream channel low-water meandering ecological construction method
The invention relates to a straight stream channel low-water meandering ecological construction method and belongs to the technical field of river ecological restoration. The straight stream channel low-water meandering ecological construction method comprises the first step of analyzing the ecological problems of a straight stream channel due to plane straightness and fracture surface regularization, conducting a survey on a straight stream needing to be restored to acquire stream low-water meandering hydrological data and calculating the corresponding design water level and design flow, the second step of calculating the corresponding low-water meandering design river width according to the acquired design water level or the acquired design flow, the third step of calculating the low-water meandering morphological characteristic value according to the acquired the low-water meandering design river width, and the fourth step of determining the lengths of ecological structures stretching into the stream channel according to the river width and enabling the ecological structures to be arranged on the two banks of the straight stream channel in a staggered mode according to certain rules. According to the straight stream channel low-water meandering ecological construction method, the requirements for flood draining safety of the straight stream channel are fully considered, and the ecological transformation method is provided for a large number of existing spaced-limited straight stream channels so that low-water meandering morphology can be formed, diversified water flow and riverbed morphological conditions can be formed gradually, and the low-water river ecological conditions can be improved.
Straight stream channel low-water meandering ecological construction method
The invention relates to a straight stream channel low-water meandering ecological construction method and belongs to the technical field of river ecological restoration. The straight stream channel low-water meandering ecological construction method comprises the first step of analyzing the ecological problems of a straight stream channel due to plane straightness and fracture surface regularization, conducting a survey on a straight stream needing to be restored to acquire stream low-water meandering hydrological data and calculating the corresponding design water level and design flow, the second step of calculating the corresponding low-water meandering design river width according to the acquired design water level or the acquired design flow, the third step of calculating the low-water meandering morphological characteristic value according to the acquired the low-water meandering design river width, and the fourth step of determining the lengths of ecological structures stretching into the stream channel according to the river width and enabling the ecological structures to be arranged on the two banks of the straight stream channel in a staggered mode according to certain rules. According to the straight stream channel low-water meandering ecological construction method, the requirements for flood draining safety of the straight stream channel are fully considered, and the ecological transformation method is provided for a large number of existing spaced-limited straight stream channels so that low-water meandering morphology can be formed, diversified water flow and riverbed morphological conditions can be formed gradually, and the low-water river ecological conditions can be improved.
Straight stream channel low-water meandering ecological construction method
FU ZHONGMIN (Autor:in) / ZHUO JIAJUN (Autor:in) / CHU MINGSHENG (Autor:in) / ZHANG WEI (Autor:in) / LIU BOYA (Autor:in) / HAN WEIDONG (Autor:in) / GU DANPING (Autor:in)
08.07.2015
Patent
Elektronische Ressource
Englisch
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