Mud surface curing process

Abstract

The invention relates to a mud surface solidification treatment technique, especially suitable for sea reclamation engineering, belonging to the mud surface solidification technology field, which comprises: laying woven earthwork cloth on the mud foundation surface for solidifying; disposing a movable construction platform on the surface; installing a plate inserting machine on the movable construction platform; inserting wick drains on the mud surface by the plate inserting machine; connecting the drain bars into a drain bar connection pipeline; discharging the aqueous vapor in the mud surface by the vacuum negative pressure through the drain bar connection pipeline. The composite function of the drain bar connection pipeline and the movable construction platform on the mud surface is equal to that of a traditional sand bed layer construction platform. The mud surface solidification method in the invention can effectively shorten construction period, reduce engineering cost, and increase efficiency and stability by adopting small and light plate inserting machine and inserting plates disposed on the movable construction platform; and further increases the efficiency of solidification technique by the matched drain bar connection pipeline.

Description

technical field [0001] The invention relates to the technical field of sludge surface solidification technology, and is particularly suitable for sea reclamation and land reclamation projects. Background technique [0002] With the development of economy and society, human beings have more and more demand for land, and there are more and more land reclamation projects all over the country. Land reclamation is mostly formed by dredging. In addition to sand, a large part of the current dredging filling materials is silt, which mainly comes from the dredging of waterways in coastal areas and the expansion of berths. It is not only economical but also a good solution to the pollution problem to directly carry out dredging filling with the sludge. However, the water content in the sludge is high and the water permeability is poor, so it is necessary to drain the water in the sludge to promote its solidification. Usually, the method of heaping or vacuum preloading drainage and ...

AI Technical Summary

Problems solved by technology

Therefore, it is bound to increase the project cost if the sand cushion is used to make the construction platform.

[0007] 2. The progress of the construction platform formed by pushing and filling the sand cushion

[0008] When pushing and filling the sand cushion, large dump trucks cannot drive on it because the silt itself has extremely low bearing capacity

Therefore, only manual or small dump tractors must be used to push and fill, so the progress will be very slow

If a large amount of labor or machinery is added, there will be safety problems, and the project cost will also increase greatly

[0009] 3. The "arch silt" phenomenon of silt

[0010] If the construction platform is pushed and filled with a 1-meter-thick sand cushion, the phenomenon of "arching and silting" will also occur, which is detrimental to the quality of the project.

[0011] 4. Project cost

Most of these plug-in machines have a self-weight of more than 20 tons, and the grounding pressure is generally not less than 100Kpa. These heavy-duty plug-in machines can only be constructed on sand cushions

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