Environment-friendly seabed reef cleaning construction process

Abstract

The invention discloses an environment-friendly seabed reef cleaning construction process. The environment-friendly seabed reef cleaning construction process comprises the following steps that an offshore rock drilling platform is driven to a position above a to-be-cleaned reef and then is fixed and located; an industrial test of the crushing effect on a typical area is carried out; according to the test result, rock drilling construction parameter sensitivity analysis is carried out, regression analysis is carried out on the rock drilling effect evaluation index, and rock drilling construction parameters of a reef clearing area are calculated; a three-dimensional geomorphologic map of the reef clearing area is established; rock drilling points are arranged, rock drilling and crushing areconducted at all the rock drilling points through rock drilling rods, and crushed reefs are cleaned through a grab bucket; and the offshore rock drilling platform is driven out of the reef clearing area, the three-dimensional geomorphologic map of the reef clearing area is re-established and analyzed, and construction is stopped until reef clearing is conducted to the designed elevations of all the areas. By means of the construction process, excavation of a seabed foundation trench can be accurately and efficiently achieved, construction errors are effectively reduced, the repeated construction operation condition caused by under-excavation and over-excavation is avoided, the construction efficiency is greatly improved, and the construction cost is reduced.

Description

technical field [0001] The invention relates to a seabed reef cleaning process, in particular to an environment-friendly seabed reef cleaning construction process, which belongs to the technical field of marine dredging engineering. Background technique [0002] In the process of waterway regulation or subsea tunnel foundation trench excavation, in order to meet the needs of shipping water depth and engineering construction, it is necessary to remove the subsea reefs. At present, the most commonly used method is underwater blasting to clear reefs, which is not applicable in areas with strict environmental requirements, such as areas with dangerous goods in the surrounding area or marine ecological protection areas. [0003] Using underwater blasting to clear reefs will not only generate huge blasting vibrations, but also generate water shock waves and swell waves, which pose a greater safety threat to construction workers, construction ships and passing ships. Therefore, du...

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Problems solved by technology

[0005] Purpose of the invention: In view of the safety and environmental threat problems existing in the current underwater blasting reef clearing method and the low work efficiency of the hammer impact rock drilling method, the present invention provides an environmentally friendly seabed that is safe and environmentally friendly and can effectively improve construction efficiency. Reef Clearing Construction Technology

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