CN204570664U - A kind of thermal vacuum prepressing device with hot type band drain of super reinforcement of soft soil - Google Patents
A kind of thermal vacuum prepressing device with hot type band drain of super reinforcement of soft soil Download PDFInfo
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- CN204570664U CN204570664U CN201520034009.4U CN201520034009U CN204570664U CN 204570664 U CN204570664 U CN 204570664U CN 201520034009 U CN201520034009 U CN 201520034009U CN 204570664 U CN204570664 U CN 204570664U
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Abstract
The utility model discloses a kind of thermal vacuum prepressing device with hot type band drain of super reinforcement of soft soil.Comprise the multiple U-shaped hot-water line of many rows, the lattice-shaped central layer of coated filter membrane is equipped with between each U-shaped hot-water line, hot water barrel meets hot water barrel through water pump, water inlet pipe, multiple U-shaped hot-water line and return pipe, vacuum pump is connected with the lattice-shaped central layer of coated filter membrane respectively through gutter, polyvinyl chloride film is laid on multiple U-shaped hot-water line top, two ends form sealing ditch, are filled with earth in sealing ditch.Outward appearance of the present utility model and normal discharge plate similar, without the need to changing drainage plate striking machinery; Solar energy heating recirculated water can be adopted, energy conservation, reduce costs; Thermal vacuum preloading method combines heating and the advantage both vacuum preloading, not only can accelerate the speed of super soft soil consolidation, also can improve the final settlement of ultra-soft soil; The method and conventional vacuum preloading method similar, increase only the connection of hot-water line and heating and pumping installations, be easy to engineering construction and promote.
Description
Technical field
The utility model relates to vacuum preloading method, particularly relates to a kind of thermal vacuum prepressing device with hot type band drain of super reinforcement of soft soil.
Background technology
W.Kjellman (1952) proposes vacuum preloading method first, and tentatively establishes the basic theory vacuumizing and reduce pore water pressure, increase effective stress.Afterwards along with Sealing Technology, vacuum pump technology, monolithic band drain, direct-discharging, development without the technology such as film and construction technology, be successfully applied to the reinforcing of soft foundation.But when the method is applied to the ultra-soft such as blowing-filling sludge, mud soil, still there is Railway Project: 1, the infiltration of the ultra-soft such as blowing-filling sludge, mud soil is little, and the duration is longer, needs 6 ~ 24 months; 2, the negative pressure limit is-80 kPa, and gain in strength is limited.And meanwhile, scholar also more and more closes the impact of heat injection on clay geotechnique characteristic, as Towhata (1993) have studied the soil geotechnique properties influence of temperature to clay, find that transmission coefficient rising not only diminishes relevant with the coefficient of viscosity, also become Free water with Bound moisture relevant, temperature raises, add hydrone energy, decrease electric double layer thickness, grain spacing minimizing causes pyrocondensation to be out of shape, and adds its transmission coefficient simultaneously; Derjaguin (1986) points out that adsorption water mutability is Free water 70 DEG C time, causes the viscosity of pore water to reduce, causes the Free water in hole to increase simultaneously, improve transmission coefficient.Heat and vacuum pre-pressed joint to have been carried out the thermal vacuum pre-compression test of clay by the people such as Abuel-Naga (2006) in indoor, find that consolidation time shortens 2/3 compared with traditional vacuum method, final settlement improves 25 ~ 30%, and effect is comparatively remarkable.But also lack at present a kind of can the hot type band drain of suitability for industrialized production and the thermal vacuum precompressed construction method at scene.
Utility model content
For the feature of thermal vacuum prestressing technology process ultra-soft soil, the purpose of this utility model is the thermal vacuum prepressing device with hot type band drain providing a kind of super reinforcement of soft soil, except the drain function that have the same as other common plastics band drains, also there is the function of heating ultra-soft soil.By hot water, heat is delivered in neighbouring ultra-soft soil, improves its temperature, thus increase its transmission coefficient, accelerate rate of consolidation.
The technical solution adopted in the utility model is:
The utility model comprises the multiple U-shaped hot-water line of many rows, the lattice-shaped central layer of coated filter membrane is equipped with between each U-shaped hot-water line, hot water barrel meets hot water barrel through water pump, water inlet pipe, multiple U-shaped hot-water line and return pipe, vacuum pump is connected with the lattice-shaped central layer of coated filter membrane respectively through gutter, polyvinyl chloride film is laid on multiple U-shaped hot-water line top, two ends form sealing ditch, are filled with earth in sealing ditch.
The multiple U-shaped hot-water line of described many rows is rubber plastic flexible pipe, and the external diameter of flexible pipe is 5 ~ 7mm, and internal diameter is 3 ~ 4mm.
The material of described lattice-shaped central layer is co-polypropylene plastics; Outside it, filter membrane is fiber hot pressing micropore filter cloth.
Connected by rubber plastic flexible pipe between described multiple U-shaped hot-water line.
Solar energy heating plate is set outside described hot water barrel.
The beneficial effect that the utility model has is:
(1) the utility model is relatively simple for structure, easily manufactured, and manufacturing cost is lower.
(2) outward appearance of the present utility model and normal discharge plate similar, without the need to changing drainage plate striking machinery.
(3) method of solar energy heating recirculated water can be adopted, can energy conservation, reduce costs.
(4) thermal vacuum preloading method combines heating and the advantage both vacuum preloading, not only can accelerate the speed of super soft soil consolidation, also can improve the final settlement of ultra-soft soil.
(5) this construction method and conventional vacuum preloading method similar, increase only the connection of hot-water line and heating and pumping installations, be easy to engineering construction and promote.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is can the cross sectional representation of hot type band drain.
In figure: 1, U-shaped hot-water line, 2, lattice-shaped central layer, 3, filter membrane, 4, rubber plastic tube connector, 5, water pump, 6, hot water barrel, 7, vacuum pump, 8, vinyl chloride film, 9, gutter, 10, return pipe, 11, water inlet pipe, 12, sealing ditch.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is described in further detail.
As shown in Figure 1 and Figure 2, the utility model comprises the multiple U-shaped hot-water line 1 (can equidistantly arrange or unequal-interval arrangement) of many rows, the lattice-shaped central layer 2 of coated filter membrane 3 is equipped with between each U-shaped hot-water line 1, hot water barrel 6 meets hot water barrel 6 through water pump 5, water inlet pipe 11, multiple U-shaped hot-water line 1 and return pipe 10, vacuum pump 7 is set with the lattice-shaped central layer 2 of coated filter membrane 3 respectively through gutter 9 and is connected, polyvinyl chloride film 8 is laid on multiple U-shaped hot-water line top, two ends form sealing ditch 12, are filled with earth in sealing ditch 12.
The multiple U-shaped hot-water line 1 of described many rows is rubber plastic flexible pipe, and the external diameter of flexible pipe is 5 ~ 7mm, and internal diameter is 3 ~ 4mm.
The material of described lattice-shaped central layer 2 is co-polypropylene plastics; Outside it, filter membrane is fiber hot pressing micropore filter cloth.
Be set with by rubber plastic flexible pipe 4 between described multiple U-shaped hot-water line 1 and connect, and the rubber plastic flexible pipe 4 between two U-shaped hot-water lines 1 leaves sufficient Enough length.
Outside described hot water barrel 6, solar energy heating plate is set.
Implementation process of the present utility model is as follows:
Set hot type band drain after ultra-soft soil according to design pitch, be connected by the U-shaped hot-water line 1 of every root band drain, wherein water inlet pipe 11 is connected with water pump 5, and return pipe 10 is connected with hot water barrel 6.Conveniently vacuum preloading construction technique, lays gutter 9, and is connected with gutter 9 by band drain, re-lay polyvinyl chloride film 8, construction sealing ditch 12.After having constructed, start vacuum pump 7 and vacuumize precompressed, and open heater and water pump simultaneously, water inlet pipe 11 is sent in hot water circuit pumping.In the process, monitoring under-membrance vacuum degree, surface settlement, when surface settlement meets the design degree of consolidation, can stop vacuumizing and heating, complete super reinforcement of soft soil.
Above-mentioned detailed description of the invention is used for explaining and the utility model is described; instead of the utility model is limited; in the protection domain of spirit of the present utility model and claim, any amendment make the utility model and change, all fall into protection domain of the present utility model.
Claims (5)
1. the thermal vacuum prepressing device with hot type band drain of a super reinforcement of soft soil, it is characterized in that: comprise the multiple U-shaped hot-water line (1) of many rows, the lattice-shaped central layer (2) of coated filter membrane (3) is equipped with between each U-shaped hot-water line (1), hot water barrel (6) is through water pump (5), water inlet pipe (11), multiple U-shaped hot-water line (1) and return pipe (10) meet hot water barrel (6), vacuum pump (7) is connected with the lattice-shaped central layer (2) of coated filter membrane (3) respectively through gutter (9), polyvinyl chloride film (8) is laid on multiple U-shaped hot-water line top, two ends form sealing ditch (12), earth is filled with in sealing ditch (12).
2. the thermal vacuum prepressing device with hot type band drain of a kind of super reinforcement of soft soil according to claim 1, is characterized in that: the multiple U-shaped hot-water line (1) of described many rows is rubber plastic flexible pipe, and the external diameter of flexible pipe is 5 ~ 7mm, and internal diameter is 3 ~ 4mm.
3. the thermal vacuum prepressing device with hot type band drain of a kind of super reinforcement of soft soil according to claim 1, is characterized in that: the material of described lattice-shaped central layer (2) is co-polypropylene plastics; Outside it, filter membrane is fiber hot pressing micropore filter cloth.
4. the thermal vacuum prepressing device with hot type band drain of a kind of super reinforcement of soft soil according to claim 1, is characterized in that: connected by rubber plastic flexible pipe between described multiple U-shaped hot-water line (1).
5. the thermal vacuum prepressing device with hot type band drain of a kind of super reinforcement of soft soil according to claim 1, is characterized in that: described hot water barrel arranges solar energy heating plate outside (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520034009.4U CN204570664U (en) | 2015-01-19 | 2015-01-19 | A kind of thermal vacuum prepressing device with hot type band drain of super reinforcement of soft soil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201520034009.4U CN204570664U (en) | 2015-01-19 | 2015-01-19 | A kind of thermal vacuum prepressing device with hot type band drain of super reinforcement of soft soil |
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| CN204570664U true CN204570664U (en) | 2015-08-19 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN108517857A (en) * | 2018-03-15 | 2018-09-11 | 宁波大学 | A kind of basement process device and its application method using solar energy |
| CN110295608A (en) * | 2019-07-16 | 2019-10-01 | 西安建筑科技大学 | A kind of hot dehumidification supporting construction of loess foundation pit and its construction method |
-
2015
- 2015-01-19 CN CN201520034009.4U patent/CN204570664U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN108517857A (en) * | 2018-03-15 | 2018-09-11 | 宁波大学 | A kind of basement process device and its application method using solar energy |
| CN110295608A (en) * | 2019-07-16 | 2019-10-01 | 西安建筑科技大学 | A kind of hot dehumidification supporting construction of loess foundation pit and its construction method |
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