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Stereo combined power drainage solidifying system and method for soft soil foundation of heterogeneous field

A technology of drainage consolidation and combined power, applied in infrastructure engineering, soil protection, construction, etc., can solve the difference of soft soil layer thickness, permeability performance, groundwater properties, unsuitable economic construction requirements, and it is difficult to adapt to heterogeneity. Site and other issues, to achieve the effect of wide application, overcoming the problem of foundation treatment, and fast construction period

Active Publication Date: 2013-07-24
CCCC ROAD & BRIDGE SPECIAL ENG
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Problems solved by technology

However, due to the heterogeneity of the site due to the combination of various genetic types of dredger fill and original soft soil, there are obvious differences in the thickness, permeability, and groundwater properties of the soft soil layer in the horizontal and vertical directions.
It is difficult to adapt to this kind of heterogeneous site by using these existing soft soil foundation treatment methods, and it is also difficult to carry out engineering construction in a short period of time after the formation of such a heterogeneous site, which is extremely incompatible with the rapid development of economic construction requirements

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Embodiment Construction

[0024] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments to facilitate a clear understanding of the present invention, but they do not limit the present invention.

[0025] Such as figure 1 A three-dimensional combined dynamic drainage and consolidation system for a soft soil foundation in a heterogeneous site is shown. The soft soil foundation in a heterogeneous site is divided into three areas, that is, loose sandy soil with muddy soil in the upper layer 1, The loose sandy soil 2 with interlayer silt in the middle layer and the sandy soil 3 without interlayer of dredging filling in the lower layer.

[0026] The three-dimensional combined dynamic drainage and consolidation system for the soft soil foundation in the heterogeneous site described in this embodiment includes a drainage system, and the drainage system includes loose sandy soil with silt interbedded soil with good permeability and ...

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Abstract

The invention discloses a stereo combined power drainage solidifying system and method for a soft soil foundation of a heterogeneous field. The drainage solidifying of soft soil is accelerated by performing stereo combined drainage formed by combining gravity water pumping and vacuum pressure drainage on the soft soil foundation of the heterogeneous field to be treated and performing power pressing on the soft soil foundation of the heterogeneous field to be treated. The stereo combined power drainage solidifying method disclosed by the invention is a novel power drainage solidifying method with a good treatment effect, a short work period, low construction cost and a wide application range, is suitable for the soft soil foundation treatments of the heterogeneous field with blow-filling (backfilling) materials, sandy soil, sludge-containing cohesive soil or powder soil, mixing filled mud and sand and mud-sand interactive soil layers existing under original mud flats, and can overcome the treatment problem of the soil foundation brought by the heterogeneous field.

Description

technical field [0001] The invention relates to the technical category of geotechnical engineering soft soil foundation treatment in the construction field, in particular to a three-dimensional combined dynamic drainage consolidation system and construction method applied in the treatment of soft soil foundation in heterogeneous sites. Background technique [0002] In recent years, with the rapid development of my country's economic construction and the increasing shortage of land resources in our country, large-scale tidal flat reclamation and land reclamation projects have been carried out in my country's coastal, river and lake areas. This type of site is mostly artificially filled (or backfilled) with high water content silt, silty soil, sandy soil and other mud and sand. This type of heterogeneous site has uneven lithology in the horizontal and vertical directions. Properties: On the one hand, dredging filling (or backfilling) materials have complex sources, extremely h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D3/10
Inventor 吴价城吴名江孟宪鹏乐绍林陈杰德
Owner CCCC ROAD & BRIDGE SPECIAL ENG
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