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Method for treating dredger fill foundation through flocculation combined with vacuum preloading

A technology of filling and vacuuming, which is applied in soil protection, infrastructure engineering, construction, etc., can solve problems such as silting, difficulty in meeting reinforcement needs, and bending of vertical drainage plates.

Inactive Publication Date: 2015-06-03
WENZHOU UNIVERSITY
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Problems solved by technology

[0003] Although vacuum preloading has been widely used in the treatment of dredger fill soil foundation, due to the characteristics of high moisture content, fine particles and strong fluidity of dredge fill soil, it often leads to bending of vertical drainage boards during vacuum preloading. Problems such as folding and clogging, although continuous improvements and innovations have been made in methods and processes, it is still difficult to meet the needs of reinforcement

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  • Method for treating dredger fill foundation through flocculation combined with vacuum preloading
  • Method for treating dredger fill foundation through flocculation combined with vacuum preloading
  • Method for treating dredger fill foundation through flocculation combined with vacuum preloading

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Embodiment Construction

[0019] In specific implementation, the feed preparation bin is connected to the pump through the flocculant delivery pipeline, and then the pump is connected to the pumping bin, and the pumping bin is connected to the dredging fill pipeline through the flocculant delivery pipeline. During implementation, the organic cationic flocculant, inorganic polymer flocculant and inorganic low molecular flocculant are added to the feeding preparation chamber at a ratio of 2:3:5, and after stirring evenly, the pumping chamber is pumped through the flocculant delivery pipeline. The silo is transported to the dredging filling pipeline, so that it is blown to the predetermined site together with the dredging fill. When implementing vacuum preloading, lay a layer of woven cloth on the dredged land foundation to be treated; position the vertical drainage board; install the vertical drainage board; lay out the horizontal drainage system; connect the vertical drainage board to the horizontal drai...

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Abstract

The invention relates to a method for treating a dredger fill foundation through flocculation combined with vacuum preloading. The method includes the processes of flocculation and vacuum preloading. Property of dredger fill is changed by early-stage flocculant, so that dewatering efficiency of late-stage vacuum preloading is improved. In addition, integral strength of the dredger fill foundation can be improved effectively by combining the flocculant with the dredger fill, so that integral reinforcing effect of the dredger fill foundation can be improved effectively through flocculation combined with vacuum preloading.

Description

technical field [0001] The invention relates to a method for flocculation combined with vacuum preloading to treat the dredging and filling soil foundation, which is mainly applicable to the treatment of the dredging and filling soil foundation. It belongs to the field of geotechnical engineering. Background technique [0002] With the economic development of my country's coastal areas along the river, the demand for land for infrastructure construction is becoming increasingly tense. Reclaiming land from the sea has become an effective method to solve the shortage of land. However, the dredger fill soil formed by reclamation from the sea has high moisture content and strong fluidity. Therefore, how to deal with these dredging fills to meet the needs of engineering construction has always been a technical problem. In particular, the treatment of dredging fill in the southeast coastal areas has become a key technology for ports, transportation and urban construction in coasta...

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Application Information

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IPC IPC(8): E02D3/11
CPCE02D3/11
Inventor 蔡袁强王军王鹏符洪涛卫会星金亚伟丁光亚胡秀青谷川郭林宓炜
Owner WENZHOU UNIVERSITY
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