Method for carrying out ecological water supplement by using tidal power

A method for carrying out ecological water supplement by using tidal power, comprising following steps:

• constructing a first water supplying river channel at an upper and middle reach of an artery and tributaries of a river channel, storing water at high tide and supplying water to the tributaries at low tide based on the first water supplying river channel;
• and
• setting a storage tank at an urban river channel, constructing a second water supplying river channel at an other end of the storage tank connected with the urban river channel, and supplying the water to a city based on the interconnected storage tank, the urban river channel and the second water supplying river channel;
• wherein a process of supplying the water to the city based on the interconnected storage tank, the urban river channel and the second water supplying river channel comprises:
• setting a regulating sluice at a joint of the storage tank and the second water supplying river channel, and setting a miter sluice at a joint of the storage tank and the urban river channel;
• storing the water based on the storage tank and the miter sluice at high tide;
• in a process of opening the miter sluice, making a gate opened by the miter sluice not capable of being parallel to a water inlet direction based on a water-blocking platform;
• at low tide, making the water flows out from a direction perpendicular to the gate based on the water-blocking platform, and pushing the gate of the miter sluice to be closed initially;
• and
• when the urban river channel is short of the water due to a sewage interception project, performing a water supplement for the urban river channel based on the storage tank, the regulating sluice and the second water supplying river channel;
• a process of storing the water at high tide and supplying the water to the tributaries at low tide based on the water supplying river channel comprises:
• setting a first gate at an intersection of the first water supplying river channel and the tributaries, and setting a second gate at an intersection of the first water supplying river channel and the artery;
• at high tide, closing the first gate, and opening the second gate to allow the water of the artery to enter the first water supplying river channel, so that the first water supplying river channel is capable of storing water of the artery;
• and
• at low tide, closing the second gate, and when the water supplement is needed for the tributaries, opening the first gate to perform the water supplement for the tributaries;
• a process of storing the water based on the storage tank and the miter sluice at high tide and low tide comprises:
• at high tide, closing the regulating sluice, and the miter sluice is automatically opened based on a high water level after the tide rises, so that the water flows into the storage tank;
• at low tide, closing the miter sluice, and closing the miter sluice based on overflow water flow, and closing the miter sluice based on a water level difference between inside and outside, and making the storage tank store water;
• and
• setting a slag-blocking net and a slow-flow sedimentation area in front of the gate of the miter sluice, reducing sediment deposition during gate opening and closing activities based on the slag-blocking net and the slow-flow sedimentation area, designing a concave structure in front of the water-blocking platform, and collecting sediment entering the storage tank based on the concave structure.