Method for laying sand filling bag frames in shallow water closed area

Abstract

The invention provides a method for laying sand filling bag frames in a shallow water closed area. The method comprises the following steps: performing pay-off positioning through a small surveying vessel in the shallow water closed area, and determining the outer boundary of a sand filling bag frame through a buoy; transporting corresponding construction materials including sand blowing pipes, and prefabricating a plurality of sand filling bags; blocking the ends of the sand blowing pipes used for the sand filling bags; laying the sand filling bags in sequence; transporting the sand blowing pipes used for the sand filling bags to a predetermined position through a small vessel, performing anchorage and fixation, and placing the sand blowing pipes at a designated position; starting to lay geotechnical cloth and the sand filling bags from one side of a bog, and binding four corners of the sand filling bags with a sand filling bag row; laying the sand blowing pipes to wait for sand blowing in the process; putting a sand blowing vessel and a sand transporting vessel in place, and then performing blowing and filling; blowing and filling sands to the sand filling bags to reach predetermined elevation, and then performing the construction of the next frame. The method has the beneficial effects that the adopted construction vessels and the materials are relatively common, the construction is convenient, and the engineering cost is greatly reduced. The construction mode is simple, easy to operate and high in practical operability, the risk of falling into the bog is avoided, and the safety of a constructor is effectively guaranteed.

Description

technical field [0001] The invention relates to a laying method for filling sand bag frames in a shallow water closed area. Background technique [0002] With the rapid development of coastal port areas, the requirements for port construction speed and construction technology are getting higher and higher. On this basis, the building materials and construction technology required for rapid enclosure and road construction on shallow sea soft soil foundations have also improved. With the rapid development, at present, the soft soil areas of coastal ports, such as fences, retaining fences, breakwater embankment cores, roadbed fences, etc., generally use filled sand bags as their main basic materials, that is, use geosynthetic materials to make "big bags" and use high-pressure The water pump mixes medium-coarse sand or silt-fine sand to fill and drain quickly, and then form a bearing layer with better structure and integrity. As a mature construction method of water transport en...

AI Technical Summary

Problems solved by technology

For areas with water depths greater than 1 meter and less than 4 meters or closed shoals and mud ponds, there are difficulties in t...

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