A device and construction method for solidifying river silt in situ

Abstract

The invention discloses an in-situ solidification device for river channel silt, comprising: a partitioned conductive outer cylinder, the partitioned conductive outer cylinder is inserted from the water surface and extends into the mud, and the part of the partitioned conductive outer cylinder located in the mud is arranged horizontally Conductive mesh, and a plurality of holes are opened on the wall of the cylinder in the mud; conductive drainage pipe, the conductive drainage pipe is inserted from the water surface of the partitioned conductive outer cylinder and extends into the mud, the conductive drainage pipe is inserted into the conductive mesh, And the cylinder wall located in the mud offers a plurality of holes, and mud filter cotton is arranged in the described conductive drainage pipe; DC power supply, the positive and negative poles of the DC power supply are respectively connected to cut off the conductive outer cylinder and the conductive drainage pipe; the pumping system, the pumping The system is connected with one end of the conductive drainage pipe protruding from the water surface; the construction method of the device is also disclosed. The device and construction method of the invention can perform in-situ solidification treatment on river channel silt, avoiding problems such as transportation and storage in the process of cleaning silt, and are more 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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