Horizontal-vertical drain board-flocculation vacuum preloading sediment treatment method

A horizontal-vertical drain board-flocculation vacuum preloading sediment treatment method, comprising

• a vacuum preloading tank, a vacuum pump, a plurality of rows of transverse drain pipe and a plurality of lines of vertical drain board;
• wherein the vertical drain boards are collectively connected to a transverse drain pipe;
• the transverse drain pipe is collected by a first junction block and connected to the vacuum pump;
• the vacuum preloading tank is filled with soil samples in operating state;
• the vacuum preloading tank is covered with a geotextile and a sealing film;
• a plurality of rows of transverse reinforcement and a plurality of lines of vertical reinforcement are disposed in the vacuum preloading tank;
• an insulating support is disposed at a junction of the transverse reinforcement and the vertical reinforcement;
• the insulating support isolates the transverse reinforcement from the vertical reinforcement;
• each row of the transverse reinforcements is provided with the transverse drain board, and the transverse drain board passes through the insulating support;
• the vertical drain board is disposed between two adjacent vertical reinforcements, and the vertical drain board passes through the insulating support;
• the operation includes the following steps:
• step 1:
• passing the transverse reinforcements and vertical reinforcements on the insulating support to form a reinforced frame;
• step 2:
• connecting anode and cathode of an electro-osmotic power supply to a combination of the vertical reinforcements apart from each other;
• wherein the vertical reinforcements passing through the same insulating support are one set, an electro-osmotic electrode is connected to the power supply through a conductor;
• step 3:
• placing the vertical drain board close to the vertical reinforcement and vertically passing through the insulating support, wherein an upper end of the vertical drain board is collectively connected to the transverse drain pipe;
• step 4:
• transporting the sediment into the vacuum preloading tank, whenever the height of a row of insulating supports is reached, the transverse drain board is put through the insulating support, and one end of transverse drain board is connected to a curved tube, the curved tube is collected by a second junction block and connected to the first junction block;
• repeat step 4 until the sediment is blown to the surface layer of vacuum preloading tank;
• step 5:
• laying the geotextile, then laying the sealing film, and finally turning on the vacuum pump for vacuum preloading pump drainage;
• step 6:
• stopping the pump drainage after the pumped water is exhausted, turning on the electro-osmotic power supply, so that the anode and cathode are formed in the combination of the vertical reinforcements, the water concentrates in the combination of vertical reinforcements connected to cathode, and the vacuum pump is turned on for vacuum preloading pump drainage.