In-situ river sludge curing device and construction method

Abstract

The invention discloses an in-situ river sludge curing device. The curing device comprises a partition conductive outer cylinder, a conductive drainage pipe, a direct-current power supply and a water pumping system, wherein the partition conductive outer cylinder is inserted from the water surface and extends into sludge, the part, located in the sludge, of the partition conductive outer cylinder is provided with a horizontally-arranged conductive net, and the cylinder wall, located in the sludge, of the partition conductive outer cylinder is provided with a plurality of holes; the conductive drainage pipe is inserted from the water surface from the interior of the partition conductive outer cylinder and extends into the sludge, the conductive drainage pipe is inserted into the conductive net, a plurality of holes are formed in the cylinder wall, located in the sludge, of the conductive drainage pipe, and slurry filtering cotton is arranged in the conductive drainage pipe; the positive electrode and the negative electrode of the direct-current power supply are respectively connected with the partition conductive outer cylinder and the conductive drainage pipe; and the water pumping system is connected with the end, extending out of the water surface, of the conductive drainage pipe. The invention further discloses a construction method of the device. According to the device and the construction method, in-situ curing treatment can be carried out on the river sludge, the problems of transportation, storage and the like in the sludge cleaning process are solved, and the device and the construction method are environmentally friendly.

Description

technical field [0001] The invention relates to the technical field of geotechnical engineering, in particular to an in-situ solidifying river channel silt device and a construction method. Background technique [0002] With the development of modern urban industry, a large amount of construction waste, domestic waste and industrial waste water are discharged into the river, especially in the siltation of small and medium rivers, which weakens the ability of the river to regulate and store floods and prevent and reduce disasters to a certain extent. It will affect the unobstructed water flow of the river and the normal navigation of ships, so it is necessary to carry out dredging treatment on the river. [0003] Existing river channel dredging methods mainly include drain dredging, underwater dredging and environmental dredging. Drainage and dredging refers to the construction of temporary cofferdams in the construction section of small rivers without flood control, drainag...

AI Technical Summary

Problems solved by technology

Underwater desilting usually uses mechanical equipment such as grab buckets or mud pumps to blow and stir the silt deposited on the bottom of the river to form turbid water, which flows away with the river, thereby dredging. The dredging effect of this method is not ideal , and for complex river environments such as mixed with other garbage, dredging construction is difficult and costly

Environmental dredging refers to improving water quality and avoiding secondary pollution to water as much as possible while dredging. Therefore, some special equipment is used in production to accurately control the depth and position of dredging, and clear the sludge for reprocessing. , for small rivers, this method does not have very suitable dredging construction equipment, and the cleared silt has problems such as transportation and storage, and it is necessary to prevent harmful substances in it from causing secondary pollution, and the construction process is complicated

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