Accurate control and dredging method for polluted sediments in seasonal river

Abstract

The invention provides an accurate control and dredging method for polluted sediments in a seasonal river. The accurate control and dredging method for the polluted sediments in the seasonal river comprises the following steps that (1) a vehicle-mounted computer, a camera, a position finder, a sensor and a laser range finder are arranged on an excavator; (2) dredging units are zoned; (3) setting-out for dredging construction is conducted; (4) a dredging machine moves in place; (5) dredging construction of the sediments is conducted; and (6) the dredging machine leaves the dredging field. The accurate control and dredging method is highly targeted and high in automation degree, high-precision positioning of the excavator is achieved, the pertinence and dredging precision of dredging work are greatly improved, and the dredging cost is effectively reduced while the subsequent disposal pressure is relieved; real-time monitoring in the dredging process is achieved, the accuracy of operation by workers is effectively improved, and the dredging efficiency is effectively improved; and accurate dredging of the polluted sediments is ensured, and accordingly the problem of secondary pollution caused by sediment diffusion when the sediments are obtained is solved.

Description

technical field [0001] The invention relates to a method for accurately dredging seasonal river bottom mud polluted by heavy metals, nutrient elements, refractory organic matter, etc., and belongs to the technical field of treatment and restoration of polluted bottom mud. Background technique [0002] Sediment usually refers to the mixture of clay, silt, organic matter and various minerals, which is formed by depositing at the bottom of the water body after long-term physical, chemical and biological actions and water body transportation. Sediment can reflect the historical process of water body evolution, and is an important part of natural water ecosystems such as rivers, lakes, and tidal flats at river estuaries. [0003] With the rapid economic development, water bodies such as rivers, lakes, river estuaries and tidal flats have been polluted to varying degrees, and the pollutants in them can be combined with sediment particles at the bottom of the water body through sed...

AI Technical Summary

Problems solved by technology

[0014] The present invention aims at the shortcomings of existing dry engineering dredging construction geotechnical machinery (excavators, bulldozers, etc.) that cannot accurately control the dredging range and dredging depth of polluted sediment, and provides a highly targeted device that can realize seasonal river pollution. Dredging system with precise control of mud dredging range and dredging depth

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