CN112609670A - Plastic drainage plate and foundation heating circulation system formed by end joints of plastic drainage plate - Google Patents
Plastic drainage plate and foundation heating circulation system formed by end joints of plastic drainage plate Download PDFInfo
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- CN112609670A CN112609670A CN202011421663.2A CN202011421663A CN112609670A CN 112609670 A CN112609670 A CN 112609670A CN 202011421663 A CN202011421663 A CN 202011421663A CN 112609670 A CN112609670 A CN 112609670A
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- drainage plate
- plastic drainage
- channel
- end connector
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/11—Improving or preserving soil or rock, e.g. preserving permafrost soil by thermal, electrical or electro-chemical means
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0004—Synthetics
- E02D2300/0006—Plastics
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2600/00—Miscellaneous
- E02D2600/20—Miscellaneous comprising details of connection between elements
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- Agronomy & Crop Science (AREA)
- Environmental & Geological Engineering (AREA)
- Soil Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention discloses a plastic drainage plate and a foundation heating circulation system formed by end joints thereof, which comprises the plastic drainage plate, wherein the plastic drainage plate comprises a core plate and a filter membrane coated on the core plate, the core plate is formed by connecting a plurality of relatively independent channel pipes side by side, a drainage channel is formed in a space between the filter membrane and the outer wall of the channel pipe of the core plate, and an internal channel is formed in the internal channel of the channel pipe; the bottom end of the plastic drainage plate is connected with a bottom end connector, and all channel pipes of the plastic drainage plate are communicated with an inner cavity of the bottom end connector; the top end connector is connected to the top end of the plastic drainage plate, the inside of the top end connector is divided into two independent inner cavities, the two inner cavities are respectively provided with a leading-out interface, hot water enters a half channel pipe of the plastic drainage plate from a circulating water inlet of the top end connector, flows to the inner cavity of the bottom end connector along the channel pipe, then enters the other half channel pipe, circulates back to the top end connector from bottom to top, and is discharged from a circulating water outlet of the top end connector.
Description
Technical Field
The invention belongs to the technical field of plastic drainage plates and soft soil foundation drainage, and particularly relates to a foundation heating circulation system formed by a plastic drainage plate and an end connector thereof.
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.
Disclosure of Invention
Aiming at the problems of clogging and reduction of drainage efficiency, the invention provides a foundation heating circulation system consisting of a plastic drainage plate and an end joint thereof by combining the potential requirements of a new drainage technology and fully considering the working characteristics of the plastic drainage plate (belt).
The invention is realized by the following technical scheme:
a plastic drain board and a foundation heating circulation system formed by end connectors of the plastic drain board comprise the plastic drain board, the plastic drain board is vertically arranged in a soft soil foundation, the top end of the plastic drain board is connected with a top end connector, and the bottom end of the plastic drain board is connected with a bottom end connector;
the plastic drainage plate comprises a core plate and a filter membrane coated on the core plate, the core plate is formed by connecting a plurality of relatively independent channel pipes side by side, a drainage channel is formed in a space between the filter membrane and the outer wall of the channel pipe of the core plate, and an internal channel is formed in the internal channel of the channel pipe;
the bottom end connector is internally provided with an inner cavity, the bottom end connector is provided with an interface for connecting a channel pipe of the plastic drainage plate, the interface is communicated with the inner cavity of the bottom end connector, the number of the interfaces is consistent with that of the channel pipe of the plastic drainage plate, and the interface of the bottom end connector is correspondingly inserted into the channel pipe at the bottom of the plastic drainage plate for connection, so that all the channel pipes of the plastic drainage plate are communicated with the inner cavity of the bottom end connector;
the top end connector is provided with interfaces for connecting the channel pipes of the plastic drainage plate, the number of the interfaces is consistent with that of the channel pipes of the plastic drainage plate, and the interfaces of the top end connector are correspondingly inserted into the channel pipes at the top of the plastic drainage plate for connection, so that the channel pipes are communicated with the inner cavity of the top end connector; the inside of the top end joint is divided into two independent inner cavities, wherein one inner cavity is communicated with one half of the interface, the other inner cavity is communicated with the other half of the interface, the two inner cavities are respectively provided with an extraction interface which is used for being connected with an external pipeline, one extraction interface is a circulating water inlet and is connected with a hot water supply pipeline, and the other extraction interface is a circulating water outlet and is connected with a hot water return pipeline;
hot water enters a half channel pipe of the plastic drainage plate from a circulating water inlet of the top end connector of the plastic drainage plate, flows to an inner cavity of the bottom end connector along the channel pipe, then enters the other half channel pipe, circulates back to the top end connector along the channel pipe from bottom to top, and is discharged from a circulating water outlet of the top end connector.
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.
In the technical scheme, the width of the top end joint is 50-200 mm, the thickness of the top end joint is 8-20 mm, and the height of the top end joint is 30-50 mm.
In the technical scheme, the width of the bottom end connector is 50-200 mm, the thickness of the bottom end connector is 8-20 mm, and the height of the bottom end connector is 30-50 mm.
The invention has the advantages and beneficial effects that:
the invention maintains the external drainage channel, improves the core plate structure, increases the internal circulation channel, and leads the plastic drainage plate (belt) to bear various circulations at the same time. The invention can realize the self hot water circulation of each plastic drainage plate through the plastic drainage plate and the top end connector and the bottom end connector thereof, namely, hot water enters a half of channel pipes of the plastic drainage plate from the circulating water inlet of the top end connector of the plastic drainage plate, flows to the inner cavity of the bottom end connector along the channel pipes, then enters the other half of channel pipes, circulates back to the top end connector along the channel pipes from bottom to top, and is discharged from the circulating water outlet of the top end connector.
The hot water circulation structure formed by the plastic drainage plate and the end joint thereof can be used for vacuum preloading of a soft soil foundation and heating comprehensive treatment of the foundation, can greatly reduce the dynamic viscosity coefficient of water, accelerate drainage efficiency, reduce silting phenomenon, shorten the reinforcing time of the soft foundation and improve the soil strength.
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 new plastic drain board connecting top end fitting of the present invention.
Fig. 6 is a schematic view of the novel plastic drain board of the present invention connected to a bottom end fitting.
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.
Specific test methods
The technical scheme of the invention is further explained by combining specific examples.
Example one
A plastic drainage plate (belt) and its end joint are composed of a drainage plate (belt) and its end joint.
Plastic drain board part
The plastic drainage plate comprises a core plate 1 and a filter membrane 2 coated on the core plate, 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.
End joint part of plastic drainage plate
The end joint of plastics drain bar is divided into top end joint 5 and bottom end joint 6 two kinds, and specific saying:
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.
The foundation heating circulation system formed by the plastic drainage plate and the end connectors thereof can realize the self hot water circulation of each plastic drainage plate, namely hot water enters a half channel pipe 3 of the plastic drainage plate from a circulation water inlet of the top connector 5 of the plastic drainage plate, flows to an inner cavity of the bottom connector 6 along the channel pipe 3, then enters the other half channel pipe 3, circulates back to the top connector 5 along the channel pipe 3 from bottom to top, and is discharged from a circulation water outlet of the top connector 5.
Example two
The plastic drainage plate and the end joint thereof in the first embodiment 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; 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 of the present invention only and is not intended to limit the invention to the exact construction and operation shown and described, and accordingly, all suitable modifications and equivalents may be resorted to, falling within the spirit and scope of the invention.
Claims (10)
1. The utility model provides a ground heating cycle system that plastics drain bar and end connection constitute which characterized in that: the drainage device comprises a plastic drainage plate, wherein the plastic drainage plate is vertically arranged in a soft soil foundation, the top end of the plastic drainage plate is connected with a top end connector, and the bottom end of the plastic drainage plate is connected with a bottom end connector;
the plastic drainage plate comprises a core plate and a filter membrane coated on the core plate, the core plate is formed by connecting a plurality of relatively independent channel pipes side by side, a drainage channel is formed in a space between the filter membrane and the outer wall of the channel pipe of the core plate, and an internal channel is formed in the internal channel of the channel pipe;
the bottom end connector is internally provided with an inner cavity, the bottom end connector is provided with an interface for connecting a channel pipe of the plastic drainage plate, the interface is communicated with the inner cavity of the bottom end connector, the number of the interfaces is consistent with that of the channel pipe of the plastic drainage plate, and the interface of the bottom end connector is correspondingly inserted into the channel pipe at the bottom of the plastic drainage plate for connection, so that all the channel pipes of the plastic drainage plate are communicated with the inner cavity of the bottom end connector;
the top end connector is provided with interfaces for connecting the channel pipes of the plastic drainage plate, the number of the interfaces is consistent with that of the channel pipes of the plastic drainage plate, and the interfaces of the top end connector are correspondingly inserted into the channel pipes at the top of the plastic drainage plate for connection, so that the channel pipes are communicated with the inner cavity of the top end connector; the inside of the top end joint is divided into two independent inner cavities, wherein one inner cavity is communicated with one half of the interface, the other inner cavity is communicated with the other half of the interface, the two inner cavities are respectively provided with an extraction interface which is used for being connected with an external pipeline, one extraction interface is a circulating water inlet and is connected with a hot water supply pipeline, and the other extraction interface is a circulating water outlet and is connected with a hot water return pipeline;
hot water enters a half channel pipe of the plastic drainage plate from a circulating water inlet of the top end connector of the plastic drainage plate, flows to an inner cavity of the bottom end connector along the channel pipe, then enters the other half channel pipe, circulates back to the top end connector along the channel pipe from bottom to top, and is discharged from a circulating water outlet of the top end connector.
2. The system of claim 1, wherein the system comprises a plastic drainage plate and an end fitting, wherein the system comprises: the width of the core plate is 50-200 mm, and the thickness is 8-20 mm.
3. The system of claim 1, wherein the system comprises a plastic drainage plate and an end fitting, wherein the system comprises: and the filter membrane is thermally fused with the outer side of the core plate, or the filter membrane is sewn.
4. The system of claim 1, wherein the system comprises a plastic drainage plate and an end fitting, wherein the system comprises: the cross-sectional shape of the single passage tube is an ellipse.
5. The system of claim 1, wherein the system comprises a plastic drainage plate and an end fitting, wherein the system comprises: the cross-sectional shape of the single passage tube is a diamond shape.
6. The system of claim 4, wherein the plastic drainage plate and the end fitting thereof form a ground heating cycle system, and the system comprises: the long diameter of the ellipse is 8-20 mm, and the short diameter of the ellipse is 5-12 mm.
7. The system of claim 1, wherein the system comprises a plastic drainage plate and an end fitting, wherein the system comprises: 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.
8. The system of claim 1, wherein the system comprises a plastic drainage plate and an end fitting, wherein the system comprises: the thickness of the pipe wall of a single channel pipe of the core plate is 0.5-1 mm.
9. The system of claim 1, wherein the system comprises a plastic drainage plate and an end fitting, wherein the system comprises: the top end connector is 50-200 mm in width, 8-20 mm in thickness and 30-50 mm in height.
10. The system of claim 1, wherein the system comprises a plastic drainage plate and an end fitting, wherein the system comprises: the width of the bottom end connector is 50-200 mm, the thickness is 8-20 mm, and the height is 30-50 mm.
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CN202011421663.2A CN112609670A (en) | 2020-12-08 | 2020-12-08 | Plastic drainage plate and foundation heating circulation system formed by end joints of plastic drainage plate |
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CN202011421663.2A CN112609670A (en) | 2020-12-08 | 2020-12-08 | Plastic drainage plate and foundation heating circulation system formed by end joints of plastic drainage plate |
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Citations (8)
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SU812880A1 (en) * | 1979-05-24 | 1981-03-15 | Кишиневский Политехнический Институт Им.C.Лазо | Apparatus for thermal consolidation of soil |
CN102587352A (en) * | 2012-02-24 | 2012-07-18 | 宁波市轨道交通工程建设指挥部 | Hot-water draining consolidation processing device and hot-water draining consolidating processing method for soft soil foundation |
CN202543887U (en) * | 2012-02-24 | 2012-11-21 | 宁波市轨道交通工程建设指挥部 | Novel plastic drainage plate |
CN103195997A (en) * | 2013-04-01 | 2013-07-10 | 山西荣申达科技有限公司 | Water distribution and collection device on water heating blanket body |
CN104563092A (en) * | 2015-01-19 | 2015-04-29 | 浙江大学 | Heating-type draining water board for reinforcing ultra-soft soil and thermal vacuum pre-pressing device |
US20170138010A1 (en) * | 2015-11-17 | 2017-05-18 | Ralf Schmand | Ground freezing method |
CN206757437U (en) * | 2017-05-15 | 2017-12-15 | 河北方向电器有限公司 | A kind of double temperature double control water warming blanket water knockout drum |
CN210395309U (en) * | 2020-03-25 | 2020-04-24 | 中交第一航务工程局有限公司 | Side wing core plate plastic drainage plate capable of circulating hot water |
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2020
- 2020-12-08 CN CN202011421663.2A patent/CN112609670A/en active Pending
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SU812880A1 (en) * | 1979-05-24 | 1981-03-15 | Кишиневский Политехнический Институт Им.C.Лазо | Apparatus for thermal consolidation of soil |
CN102587352A (en) * | 2012-02-24 | 2012-07-18 | 宁波市轨道交通工程建设指挥部 | Hot-water draining consolidation processing device and hot-water draining consolidating processing method for soft soil foundation |
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CN103195997A (en) * | 2013-04-01 | 2013-07-10 | 山西荣申达科技有限公司 | Water distribution and collection device on water heating blanket body |
CN104563092A (en) * | 2015-01-19 | 2015-04-29 | 浙江大学 | Heating-type draining water board for reinforcing ultra-soft soil and thermal vacuum pre-pressing device |
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