CN214460310U

CN214460310U - Plastic drainage plate with double channels

Info

Publication number: CN214460310U
Application number: CN202022920296.2U
Authority: CN
Inventors: 郑爱荣; 李卫; 朱耀庭; 张笑寒
Original assignee: CCCC First Harbor Engineering Co Ltd; Tianjin Port Engineering Institute Ltd of CCCC Frst Harbor Engineering Co Ltd; Tianjin Harbor Engineering Quality Inspection Center Co Ltd
Current assignee: CCCC First Harbor Engineering Co Ltd; Tianjin Port Engineering Institute Ltd of CCCC Frst Harbor Engineering Co Ltd; Tianjin Harbor Engineering Quality Inspection Center Co Ltd
Priority date: 2020-12-08
Filing date: 2020-12-08
Publication date: 2021-10-22
Anticipated expiration: 2030-12-08

Abstract

The utility model discloses a plastics drain bar with binary channels, including core and the filter membrane of cladding on the core, the core is connected side by a plurality of relatively independent passage pipes and is constituteed, and the space between the passage pipe outer wall of filter membrane and core forms drainage channel, and the inside passage of passage pipe self forms inside passage to make plastics drain bar have two kinds of passageways of drainage channel and inside passage simultaneously. The ordinary plastic drain bar only has a drainage channel for get rid of the surrounding environment normal water along drainage channel, the utility model discloses when keeping outside drainage channel, reform transform the core structure, increased inner passage, make the plastic drain bar can bear multiple circulation simultaneously.

Description

Plastic drainage plate with double channels

Technical Field

The utility model belongs to the technical field of the plastics drain bar, concretely relates to plastics drain bar with binary channels.

Background

The plastic drainage plate (belt) consists of a plastic plate core with a longitudinal drainage channel and a permeable filter cloth externally coated, wherein the plate core is generally made of polyethylene, polypropylene and other plastics, and the permeable filter cloth is generally short fiber impregnated nonwoven geotextile or long fiber hot melt nonwoven geotextile of terylene, vinylon, polypropylene and the like. The drainage plate can collect water with water pressure higher than that in the surrounding soil body into the plate and arrange the water in the plate to a set place, so that the water content in the surrounding soil body is reduced, and the effects of improving the strength of the soil body and reducing the deformation of the soil body are achieved.

The plastic drainage plate (belt) is applied from 80 s in the twentieth century, and is introduced into China in 90 s. The method has very important significance for reinforcing soft foundation, particularly for reinforcing ultra-soft foundation of dredger fill, has the characteristics of industrialization, high drainage efficiency, low cost, convenient and efficient construction, small disturbance to soft soil layer and no landslide, can quickly replace sand wells to form the most common drainage channel in soft foundation reinforcing engineering, forms a plastic drainage plate combined vacuum preloading soft foundation reinforcing method, and greatly improves the foundation reinforcing efficiency. As the most important geosynthetic material with the largest application amount in the vacuum preloading reinforcement technology, the annual application amount of the plastic drainage plate reaches the hundred million level.

However, the problem of clogging and reduction of drainage efficiency in the reinforcement of the soft foundation of the plastic drainage plate (belt) is always a bottleneck affecting the engineering application of the plastic drainage plate (belt), and meanwhile, in order to expand the application of the plastic drainage plate (belt) in other novel projects such as environmental protection, new requirements on the function and adaptability of the plastic drainage plate (belt) are provided, and some novel plastic drainage plate (belt) products are urgently needed.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve prior art not enough, provide a plastics drain bar with binary channels, its simple structure, it is with low costs, when keeping outside drainage channel, reformed transform the core structure, increased the inside passage, make plastics drain bar can bear multiple circulation simultaneously.

The utility model discloses a realize through following technical scheme:

the utility model provides a plastics drain bar with binary channels, includes core and the filter membrane of cladding on the core, and the core is connected side by a plurality of relatively independent channel pipes and is constituteed, and the space between the channel pipe outer wall of filter membrane and core forms drainage channel, and the inside passage of channel pipe self forms inside passage to make plastics drain bar have two kinds of passageways of drainage channel and inside passage simultaneously.

In the technical scheme, the width of the core plate is preferably 50-200 mm, and the thickness of the core plate is preferably 8-20 mm.

In the technical scheme, the filter membrane and the outer side of the core plate are subjected to hot melt adhesion, and the filter membrane can also be sewn.

In the above technical solution, the cross-sectional shape of the single passage tube is an ellipse or a rhombus.

In the technical scheme, the height of the oval long diameter or the rhombus is 8-20 mm, the width of the oval short diameter or the rhombus is 5-12 mm, two adjacent channel pipes are connected by a plastic entity, the width of the plastic entity is 1-3 mm, and the thickness of the plastic entity is more than 0.5 mm.

In the technical scheme, the thickness of the pipe wall of a single channel pipe of the core plate is 0.5-1 mm.

The utility model has the advantages and beneficial effect:

the ordinary plastic drain bar only has a drainage channel for get rid of the surrounding environment normal water along drainage channel, the utility model discloses when keeping outside drainage channel, reform transform the core structure, increased inner passage, make plastic drain bar (area) can bear multiple circulation simultaneously. The utility model discloses a plastics drain bar and end connection can be used for the vacuum preloading of soft soil foundation to unite ground heating integrated processing, and the power viscosity coefficient of water that can greatly reduce for drainage efficiency alleviates silt up stifled phenomenon, shortens soft base consolidation time, improves soil body intensity.

Drawings

Fig. 1 is a cross-sectional view of the novel plastic drain board of the present invention.

Fig. 2 is a schematic view of the novel plastic drain board of the present invention.

Fig. 3 is a cross-sectional view of the novel plastic drain board of the present invention.

Fig. 4 is a schematic view of the novel plastic drain board of the present invention.

Fig. 5 is a schematic view of the novel plastic drain board connecting top end joint of the present invention.

Fig. 6 is a schematic view of the novel plastic drain board connecting bottom end connector of the present invention.

Fig. 7 is a side view of a foundation treatment system using plastic drainage plates and their end fittings to create vacuum preloading in combination with foundation heating.

Fig. 8 is a top view of a foundation treatment system using plastic drainage plates and their end fittings to create vacuum preloading in combination with foundation heating.

For a person skilled in the art, other relevant figures can be obtained from the above figures without inventive effort.

Detailed Description

The technical solution of the present invention will be further described with reference to the following specific examples.

Example one

Referring to the attached drawings 1-4, the novel plastic drainage plate comprises a core plate 1 and a filter membrane 2 coated on the core plate, wherein the width of the core plate 1 is preferably 50-200 mm, the thickness of the core plate 1 is preferably 8-20 mm, and the core plate 1 is formed by connecting a plurality of relatively independent channel pipes 3 in parallel; the cladding of filter membrane 2 is on core 1, and the space between the filter membrane and the 3 outer walls of channel pipe of core 1 forms drainage channel a (when vacuum preloading foundation drainage construction, during water and the air in the soft soil foundation can permeate the filter membrane and get into drainage channel), and the inside passage of channel pipe 3 self forms inside passage b to make the plastics drain bar have two kinds of passageways of drainage channel and inside passage simultaneously.

Furthermore, the filter membrane 2 is hot-melt bonded with the outer side of the core plate 1, and the filter membrane 2 can also be sewn.

Further, the cross section of each single channel tube 3 is oval or rhombic, the height of the oval long diameter or the rhombus is 8-20 mm, the width of the oval short diameter or the rhombus is 5-12 mm, two adjacent channel tubes 3 are connected by a plastic entity 4, and the width of the plastic entity 4 is 1-3 mm and the thickness of the plastic entity is larger than 0.5 mm.

The thickness of the pipe wall of the single channel pipe 3 of the core plate 1 is 0.5-1 mm.

Example two

Referring to fig. 5 to 6, the end joints of the plastic drain board are divided into a top end joint 5 and a bottom end joint 6, specifically:

the width of the top end joint 5 is 50-200 mm, the thickness is 8-20 mm, and the height is 30-50 mm. The top end joint 5 is provided with interfaces 5.1 used for connecting the channel pipes 3 of the plastic drainage plate, the number of the interfaces 5.1 is consistent with the number of the channel pipes 3 of the plastic drainage plate, the diameter of the interfaces is slightly smaller than that of the channel pipes 3, the height of the interfaces is 5-10 mm, and when the interfaces are required to be connected, the interfaces 5.1 of the top end joint 5 are correspondingly inserted into the channel pipes 3 at the top of the plastic drainage plate to be connected, so that the channel pipes 3 are communicated with the inner cavity of the top end joint 5; the inside of the top end joint 5 is divided into two independent inner cavities, wherein one inner cavity 5.2 is communicated with one half of the interface, the other inner cavity 5.3 is communicated with the other half of the interface, the two inner cavities are respectively provided with an outgoing interface which is used for being connected with an external pipeline, one outgoing interface is a circulating water inlet 5.4 and used for leading in hot water, and the other outgoing interface is a circulating water outlet 5.5 and used for discharging the hot water.

The width of the bottom end joint 6 is 50-200 mm, the thickness is 8-20 mm, and the height is 30-50 mm. The inside of bottom end connection 6 has the inner chamber, be provided with the interface 6.1 that is used for connecting the passageway pipe 3 of plastics drain bar on the bottom end connection 6, interface 6.1 communicates with the inner chamber of bottom end connection 6, interface quantity is unanimous with the passageway pipe 3 quantity of plastics drain bar, the interface diameter slightly is less than passageway pipe 3, highly be 5 ~ 10mm, when needing to connect, connect in the passageway pipe 3 of inserting plastics drain bar bottom with the interface 6.1 correspondence of bottom end connection 6, thereby make all passageway pipes 3 of plastics drain bar and the inner chamber intercommunication of bottom end connection 6.

Through setting up top end connector 5 and bottom end connector 6, can realize the self hot water circulation of every plastics drain bar, hot water enters into half channel pipe 3 of plastics drain bar from the circulation water inlet of the top end connector 5 of plastics drain bar promptly to flow to in the 6 inner chambers of bottom end connector along channel pipe 3, then in another half channel pipe 3 of reentrant, follow channel pipe 3 circulation from bottom to top and return top end connector 5, discharge from the circulation delivery port of top end connector 5.

EXAMPLE III

The plastic drainage plate and the end joint thereof are applied to construct a foundation treatment system combining vacuum preloading and foundation heating, and the foundation treatment system has the functions of vacuum preloading and foundation heating.

Specifically, referring to fig. 7-8, in the foundation treatment system combining vacuum preloading and foundation heating, the plastic drainage plates are vertically arranged in a soft soil foundation to be treated, a bottom end joint 6 is installed at the bottom end of each plastic drainage plate, a top end joint 5 is installed at the top end of each plastic drainage plate, the plastic drainage plates are arranged in a lattice manner, the top of each plastic drainage plate is exposed out of the soft soil foundation, a sand cushion 7 is laid on the soft soil foundation, a water filter pipe 8 which is transversely arranged is embedded in the sand cushion, a sealing film is laid on the sand cushion, the edge of the sealing film is pressed into a film pressing ditch, and the terminal of the water filter pipe is connected with an air suction pipeline (the air suction pipeline is connected with a vacuum pumping device on the bottom surface) through a film outlet device, so that a closed vacuum preloading system is formed; in addition, the circulating water inlets of the top end connectors 5 at the top ends of all the plastic drainage plates are converged on a total water inlet pipe 9.1 through pipelines, the circulating water outlets of the top end connectors 5 at the top ends of all the plastic drainage plates are converged on a total water outlet pipe 9.2 through pipelines, the total water inlet pipe is connected with the water outlet of the above-ground circulating heating equipment 10, and the total water outlet pipe is connected with the water inlet of the above-ground circulating heating equipment 10, so that a water circulating heating system capable of heating the soft soil foundation is formed. Further, the top end joint 5 at the top end of the plastic drainage plate is also embedded in the sand cushion.

The method for treating the soft soil foundation by applying the foundation treatment system with the combination of vacuum preloading and foundation heating comprises the following steps:

the circulation heating equipment is started, circulation hot water is introduced into each plastic drainage plate, each plastic drainage plate forms circulation heating, namely, the hot water enters a half channel pipe 3 of the plastic drainage plate from a circulation water inlet of a top end connector 5 of the plastic drainage plate, flows to an inner cavity of a bottom end connector 6 along the channel pipe 3, then enters the other half channel pipe 3, circulates back to the top end connector 5 along the channel pipe 3 from bottom to top, is discharged from a circulation water outlet of the top end connector 5, and circulates in such a way, and soil around the plastic drainage plates is continuously heated.

After heating for a period of time, promote to higher temperature in the ground, then open evacuation equipment, the negative pressure transmits to the weak soil around along the drainage channel a of plastics drain bar to water and the air in the soft soil ground upwards discharge, realize the ground reinforcement. By increasing the temperature of the foundation, the dynamic viscosity coefficient of water can be greatly reduced, the drainage efficiency is accelerated, the silting phenomenon is reduced, the soft foundation reinforcement time is shortened, and the soil body strength is improved.

The foregoing is illustrative only and is not intended to limit the invention to the details of construction and use shown and described, and all modifications and equivalents that fall within the spirit and scope of the invention are intended to be embraced therein.

Claims

1. The utility model provides a plastics drain bar with binary channels which characterized in that: the plastic drainage plate comprises a core plate and a filter membrane coated on the core plate, wherein the core plate is formed by connecting a plurality of relatively independent channel pipes side by side, a drainage channel is formed in the space between the outer walls of the channel pipes of the filter membrane and the core plate, and an internal channel is formed in the internal channel of each channel pipe, so that the plastic drainage plate has two channels, namely the drainage channel and the internal channel.

2. The plastic drain board with two channels of claim 1, wherein: the width of the core plate is 50-200 mm, and the thickness is 8-20 mm.

3. The plastic drain board with two channels of claim 1, wherein: and the filter membrane is thermally fused with the outer side of the core plate, or the filter membrane is sewn.

4. The plastic drain board with two channels of claim 1, wherein: the cross-sectional shape of the single passage tube is an ellipse.

5. The plastic drain board with two channels of claim 1, wherein: the cross-sectional shape of the single passage tube is a diamond shape.

6. The plastic drain board with two channels of claim 4, wherein: the oval long diameter is 8-20 mm, the oval short diameter is 5-12 mm, two adjacent channel pipes are connected by a plastic entity, the width of the plastic entity is 1-3 mm, and the thickness of the plastic entity is greater than 0.5 mm.

7. The plastic drain board with two channels of claim 5, wherein: the height of the rhombus is 8-20 mm, and the width of the rhombus is 5-12 mm.

8. The plastic drain board with two channels of claim 1, wherein: the thickness of the pipe wall of a single channel pipe of the core plate is 0.5-1 mm.