A Construction Technology of River Channel Excavation after Blowing Mud into Land

Abstract

The invention discloses a river excavation construction process after mud blowing land formation. The river excavation construction process comprises a foundation treatment stage and a river excavation stage which are successively carried out. The foundation treatment stage includes shallow foundation treatment and deep foundation treatment. The shallow foundation treatment adopts a vacuum preloading method and includes the step of laying a working cushion layer, the step of arranging a drainage board in a driving manner, the step of arranging a vacuum pipe network, the step of laying non-woven fabric and a sealing film, the step of installing a vacuuming device, the step of vacuum preloading and the steps of unloading and leveling, and the steps are sequentially executed. The deep foundation treatment adopts a stacking preloading method and includes the step of laying a drainage sand cushion layer, the step of arranging a drainage board in a driving manner, the steps of stacking and pressure stabilization and the steps of unloading and detecting, and the steps are sequentially executed. The river excavation construction process adopts the methods combining vacuum preloading and stacking preloading to treat a foundation, and has the advantages of the short construction period, low cost, no noise, the remarkable drainage effect, the good foundation consolidation effect and the like.

Description

technical field [0001] The invention relates to a river channel excavation construction technology after blowing mud into land. Background technique [0002] In recent years, with the continuous and rapid development of urban construction, the shortage of land resources has become increasingly serious. The development and utilization of tidal flats has become an important way to open up new land resources. It is of great significance to promote the development of service industry, coastal tourism industry and marine cultural industry. Among them, there are many sea reclamation projects in tidal estuary areas and coastal areas. It is to transform the natural sea space into land through engineering measures such as artificially building dams and filling earth and stones. It is the main form of coastal development and utilization in my country. An important part of the land reclamation project is to first enclose an area with dykes on the tidal flat or shoreline, and then perf...

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Problems solved by technology

[0003] 1) Light compaction multi-pass processing method: the quality of this method is uncontrollable, and it is easy to damage the soil structure;

[0004] 2) Electroosmosis: The equipment used in this method is complex and the scope of use is small;

[0005] 3) Explosive silting method: the cost of this method is relatively high

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