Construction method for covering foundation bed with geotechnical cloth to prevent back silting

Abstract

A construction method for covering a foundation bed with geotechnical cloth to prevent back silting includes the steps that firstly, the foundation bed is covered with the geotechnical cloth; secondly, pressing is conducted through gravel bags, wherein a row of gravel bags is pressed on the periphery of the geotechnical cloth at every interval of 10 meters, and drifting of the geotechnical cloth is prevented; and thirdly, foundation bed dredging treatment is conducted before fine flattening. By the adoption of the construction method, the silting prevention effect is remarkable, and the construction method has the beneficial effects that settlings generated due to back silting in stone gaps of the foundation bed are reduced, dredging is more thorough, and construction quality is improved greatly; the dredging construction process is simplified, construction is simper, easy and fast, and construction efficiency is improved; and the expenses of ship machines are saved on the economic aspect.

Description

technical field [0001] The invention relates to the construction technology of the foundation bed of a wharf, in particular to a construction method for covering the foundation bed with a geotextile to prevent silting back. Background technique [0002] Yingkou Port needs to shut down due to temperature reasons from December to March of the next year, which will lead to the foundation bed at the end of the gravity wharf, and the top surface of the foundation bed of the cube (caisson) that has not been installed in time. The rear edge of the cube (caisson) needs to be exposed for a long time, and a large amount of silt deposits will be silted back. In order to ensure that the sliding friction coefficient between the cube (caisson) and the foundation bed meets the requirements, the barge team needs to cooperate with divers before the construction of the next process. dredging. [0003] In the traditional dredging process, divers are required to use high-pressure water pumps t...

AI Technical Summary

Problems solved by technology

However, this dredging method has certain disadvantages: (1) the dredging is not thorough, and the blown back silt deposits cannot be completely removed due to the uncontrolled tide; (2) the silt in the crevices of the stones cannot be completely removed; (3) ) to clear the foundation bed with a length of 100 meters and a width of 17 meters, it takes 6-7 days or even longer for the barge to cooperate with divers; not only the dredging is not complete, but the cost is high, and there are certain restrictions on the construction of the next process

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