CN203977404U - Based on new hydraulic reclamation super soft ground vacuum preloading shallow-layer, solidify the layout structure with gutter - Google Patents

Abstract

The utility model relates to a kind of layout structure of using gutter that solidifies based on new hydraulic reclamation super soft ground vacuum preloading shallow-layer, it is characterized in that: mainly comprise several band drains unit, each band drain unit includes the main band drain of four quadrate layouts and is positioned at the auxiliary band drain at square center; Distance between main band drain is 0.8～1m, and the distance between main band drain and auxiliary band drain is 0.56～0.71m.The degree of depth of described drainage plate striking is 4.5m, and the band drain of described each band drain unit exposes new hydraulic reclamation super soft ground surface 60cm.The utility model is accelerated shallow layer reinforcement time and solidification effect, makes without hydraulic reclamation flour sand, also can meet the construction that deep vacuum precompressed sets plastic draining board after shallow layer reinforcement processing.

Description

Based on new hydraulic reclamation super soft ground vacuum preloading shallow-layer, solidify the layout structure with gutter

Technical field

The utility model belongs to super soft ground reinforcing technique field, particularly relates to based on new hydraulic reclamation super soft ground vacuum preloading shallow-layer and solidifies the layout structure with gutter.

Background technology

Along with the fast development of China's Coastal Areas economy, land resources growing tension, utilizes and carries out ground stabilization after basin and waterway dredging soil land reclamation again and become the Main Means of alleviating shortage of land resource.Because the dredging soil soil property of hydraulic reclamation mostly recently is mud, its moisture content surpasses 100%, and void ratio is greater than 2.0, and outward appearance is mud scum～stream mud shape, and not yet formation has the soil skeleton structure of intensity, and bearing capacity is almost nil.In the face of super soft ground like this, the main vacuum method that adopts is carried out consolidation process at present.In vacuum method construction technology, setting plastic draining board needs the special-purpose equipment that re-packs, and this equipment belongs to heavy-duty machinery, and weight is about 10-15 ton.How the mire forming at new hydraulic reclamation dredging soil re-packs to construct and becomes the key issue that ground is processed, and mainly comprises following several method at present for this problem:

The one, the equipment modification that re-packs of conventional rail mounted is become to crawler type, operation directly re-pack in the mire that can form at new hydraulically filled sludge.In the method, transform the equipment cost that re-packs higher, the equipment of re-packing after repacking can only fall back and construct in addition, and efficiency of construction is lower, to completing the region re-packing, easily causes disturbance to destroy, and in the process that re-packs, anti-mud situation is serious, and follow-up vacuum preloading construction is had a certain impact.

The 2nd, allow mire that new hydraulic reclamation dredging soil forms first through airing after a while, make its top layer by the fixed formation of natural sediment, there is the crust layer of certain bearing capacity, the more common working cushion layer that meets the equipment construction that re-packs that forms of the flour sand bed course of hydraulic reclamation 80cm～100cm.

The 3rd, on the mire forming at new hydraulic reclamation dredging soil, by artificial plate, carry out the processing of shallow-layer vacuum preloading, make its top layer form the crust layer that one deck has some strength and thickness, and then the common working cushion layer that meets the equipment construction that re-packs that forms of the flour sand of hydraulic reclamation 80cm～100cm.

Method two and method three all need can meet by the certain thickness flour sand bed course of hydraulic reclamation the requirement of the construction working bed course that re-packs, but due to transition exploitation and the use of flour sand in recent years, flour sand resource is more and more in short supply at present, and the construction of hydraulic reclamation flour sand is subject to weather effect larger, usually need long period of time just can complete, this certainly will make construction costs and duration be difficult to guarantee.

In view of above three kinds of construction technologies are to super soft ground stabilization works cost, quality and the Different Effects of duration, we work out a kind of " without sand working cushion layer " vacuum method, can make without hydraulic reclamation flour sand, also can form the working cushion layer that meets follow-up plant equipment construction after shallow layer reinforcement processing.Allow vacuum pre-press reinforcing no longer disturbed in flour sand resource, duration and strengthening quality are all effectively guaranteed, in whole inventive concept process, the layout structure of gutter is particularly important, it will directly affect the effect of draining, and the utility model special design is a kind of for this reason solidifies the layout structure with gutter based on new hydraulic reclamation super soft ground vacuum preloading shallow-layer.

Summary of the invention

The utility model provides a kind of quickening shallow layer reinforcement technical scheme for solving the technical problem existing in known technology, makes without hydraulic reclamation flour sand, also can meet the layout structure based on the curing use of new hydraulic reclamation super soft ground vacuum preloading shallow-layer gutter that deep vacuum precompressed sets plastic draining board after shallow layer reinforcement processing.

The technical scheme that the utility model is taked for the technical problem existing in solution known technology is:

A kind of layout structure of using gutter that solidifies based on new hydraulic reclamation super soft ground vacuum preloading shallow-layer, it is characterized in that: mainly comprise several band drains unit, each band drain unit includes the main band drain of four quadrate layouts and is positioned at the auxiliary band drain at square center; Distance between main band drain is 0.8～1m, and the distance between main band drain and auxiliary band drain is 0.56～0.71m, and the degree of depth of described drainage plate striking is 4.5m; ; The band drain of described each band drain unit exposes new hydraulic reclamation super soft ground surface 60cm.

Advantage and the good effect that the utlity model has are: because the utility model adopts technique scheme, make the utlity model has following advantage: according to < < vacuum preloading tecnical regulations JTS147-2-2009 > >, illustrate, when plastic draining distance between plates is less than 0.7m, very large to the disturbance of ground, plastic draining board sets expense to be increased more, and the minimizing of consolidation time not obvious, therefore the conventional plastic draining distance between plates of vacuum preloading should be not less than 0.7m.And the present invention finds by research, when processing vacuum preloading, shallow-layer further reduces plastic draining distance between plates, adopt square center lock pin to arrange, spacing between main band drain and auxiliary band drain is 0.56～0.7m, encryption drainage pipe is laid, adopt single single tube structure simultaneously, can in identical consolidation time, soil strength be improved rapidly, and after reinforcing, soil body four-bladed vane intensity increases by 4～5 times compared with traditional handicraft.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model;

Fig. 2 is the top view of Fig. 1;

In figure: 1, band drain unit; 1-1, main band drain; 1-2, auxiliary band drain.

The specific embodiment

For further understanding summary of the invention of the present utility model, Characteristic, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:

Refer to Fig. 1 to Fig. 2, a kind of layout structure of using gutter that solidifies based on new hydraulic reclamation super soft ground vacuum preloading shallow-layer, it is characterized in that: mainly comprise several band drains unit 1, each band drain unit includes the main band drain 1-1 of four quadrate layouts and is positioned at the auxiliary band drain 1-2 at square center; The degree of depth of described drainage plate striking is that L1 is 4.5m; Distance L 2 between main band drain is 0.8～1m, and the distance L 3 between main band drain and auxiliary band drain is 0.56～0.71m, and it is 60cm that the band drain of described each band drain unit exposes new hydraulic reclamation super soft ground surface.And the present invention finds by research, when processing vacuum preloading, shallow-layer further reduces plastic draining distance between plates, adopt square center lock pin to arrange, spacing between main band drain and auxiliary band drain is 0.56～0.71m, encryption drainage pipe is laid, adopt single single tube structure simultaneously, can in identical consolidation time, soil strength be improved rapidly, and after reinforcing, soil body four-bladed vane intensity increases by 4～5 times compared with traditional handicraft.

The utility model coordinates other supporting structures such as single single tube layout to use when reality is used, the cancellation hydraulic reclamation flour sand of mainly take is held power working cushion layer as fundamental starting point, by innovation shallow layer reinforcement technical scheme, make without hydraulic reclamation flour sand, also can meet the construction that deep vacuum precompressed sets plastic draining board after shallow layer reinforcement processing.Allow vacuum pre-press reinforcing no longer be limited by flour sand, significantly reduce the use of flour sand resource, reduced to a certain extent construction costs and shortened the duration and also can avoid because of the resource environmental disruption that too much exploitation causes.

The above is only to preferred embodiment of the present utility model, not the utility model is done to any pro forma restriction, every foundation technical spirit of the present utility model is to any simple modification made for any of the above embodiments, equivalent variations and modification, all belong in the scope of technical solutions of the utility model.

Claims (1)

1. one kind solidifies the layout structure with gutter based on new hydraulic reclamation super soft ground vacuum preloading shallow-layer, it is characterized in that: mainly comprise several band drains unit, each band drain unit includes the main band drain of four quadrate layouts and is positioned at the auxiliary band drain at square center; Distance between main band drain is 0.8～1m, and the distance between main band drain and auxiliary band drain is 0.56～0.71m, and the degree of depth of described drainage plate striking is 4.5m; ; The band drain of described each band drain unit exposes new hydraulic reclamation super soft ground surface 60cm.