CN110565622B - Degradable environment-friendly telescopic drainage body - Google Patents
Degradable environment-friendly telescopic drainage body Download PDFInfo
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- CN110565622B CN110565622B CN201910806281.2A CN201910806281A CN110565622B CN 110565622 B CN110565622 B CN 110565622B CN 201910806281 A CN201910806281 A CN 201910806281A CN 110565622 B CN110565622 B CN 110565622B
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- pipe body
- filter membrane
- permeable filter
- pipe
- drainage
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- 239000012528 membrane Substances 0.000 claims abstract description 54
- 239000002689 soil Substances 0.000 claims abstract description 54
- 238000001914 filtration Methods 0.000 claims abstract description 14
- 238000007789 sealing Methods 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 26
- 235000013162 Cocos nucifera Nutrition 0.000 claims description 9
- 244000060011 Cocos nucifera Species 0.000 claims description 9
- UQLDLKMNUJERMK-UHFFFAOYSA-L di(octadecanoyloxy)lead Chemical compound [Pb+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O UQLDLKMNUJERMK-UHFFFAOYSA-L 0.000 claims description 9
- 239000000835 fiber Substances 0.000 claims description 9
- 229920000728 polyester Polymers 0.000 claims description 9
- 239000010902 straw Substances 0.000 claims description 9
- 229920006238 degradable plastic Polymers 0.000 claims description 4
- 238000005452 bending Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 7
- 238000010276 construction Methods 0.000 description 6
- 239000012466 permeate Substances 0.000 description 4
- 230000015556 catabolic process Effects 0.000 description 3
- 238000006731 degradation reaction Methods 0.000 description 3
- 230000003993 interaction Effects 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 238000004062 sedimentation Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
-
- 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
- E02D3/02—Improving by compacting
- E02D3/10—Improving by compacting by watering, draining, de-aerating or blasting, e.g. by installing sand or wick drains
Landscapes
- 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 provides a degradable environment-friendly telescopic drainage body, which comprises a drainage main body formed by axially staggering and splicing a first section body and a second section body; the first section body comprises a rigid first pipe body and a flexible first permeable filter membrane wrapped on the outer surface of the first pipe body, and the first permeable filter membrane is fixedly connected with the first pipe body in a heat sealing mode; the second section body comprises a rigid second pipe body and a flexible second permeable filter membrane wrapped on the outer surface of the second pipe body, and the second permeable filter membrane is fixedly connected with the second pipe body in a heat sealing mode; the first pipe body and the second pipe body are hollow cylinders, and a plurality of filtering holes are formed in the first pipe body and the second pipe body; the outer diameter of the first section body is equal to the inner diameter of the second pipe body; the first section body is clamped in the second pipe body; when the soft soil foundation subsides, the first section body is contracted into the second pipe body for adapting to the deformation of the soft soil foundation. The invention is suitable for the deformation condition of the foundation and avoids the bending condition of the drainage body.
Description
Technical Field
The invention belongs to the technical field of vacuum preloading treatment of soft soil foundations, and particularly relates to a degradable environment-friendly telescopic drainage body.
Background
Soft soil with poor engineering properties is distributed in vast areas of China. Soft soil is special rock soil, belongs to bad geological action in engineering, has the characteristics of high pore ratio, high water content, high compressibility, high sensitivity, low strength and the like, and is not suitable for being used as a foundation of a building structure without treatment. Building structures on soft soil sites needs to solve two problems: stabilization and sedimentation. The soft soil foundation reinforcing method combining the plastic drainage plate with the vacuum preloading is an economic and efficient soft soil foundation treatment method which is gradually and widely applied. The plastic drainage plate is mainly arranged in soft soil, a layer of sand layer and a plastic film are covered on the upper part of a soil layer, air in the film is completely extracted by adopting air extraction equipment, the sand layer and a drainage belt are ensured to be in a vacuum state, and water in the soft soil is discharged through the drainage plate and the sand layer, so that the aim of reinforcing the soft soil foundation is really achieved. In order for most of the sedimentation to occur during construction, it must be ensured that sedimentation is controlled within a reasonable range after the period of use. The new ideas of foundation treatment design and construction aiming at controlling post-construction settlement gradually become the consensus of engineering technology community. The control of the deformation implies control of the stability and the requirements are higher and more reasonable.
However, the existing drain board has the problems of easy bending, clogging, settlement after construction of soft soil foundation and the like, and development of a degradable environment-friendly telescopic drain body which can adapt to foundation deformation conditions and avoid the situation that the drain body is bent is needed.
Disclosure of Invention
The invention aims to provide a degradable environment-friendly telescopic drainage body which can adapt to the deformation condition of a foundation and avoid the bending condition of the drainage body.
The invention is realized by the following technical scheme:
a degradable environment-friendly telescopic drainage body comprises a drainage main body formed by axially staggering and splicing a first section body and a second section body;
the first section body comprises a first pipe body made of a rigid material and a first permeable filter membrane made of a flexible material and wrapped on the outer surface of the first pipe body, and the first permeable filter membrane is fixedly connected with the first pipe body in a heat sealing mode;
the second section body comprises a second pipe body made of rigid materials and a second permeable filter membrane made of flexible materials and wrapped on the outer surface of the second pipe body, and the second permeable filter membrane is fixedly connected with the second pipe body in a heat sealing mode;
the first pipe body and the second pipe body are hollow cylinders, and a plurality of filtering holes are formed in the first pipe body and the second pipe body;
the outer diameter of the first section body is equal to the inner diameter of the second pipe body;
any one of the two ends of the first section body can be clamped in any one of the two ends of the second pipe body;
when the soft soil foundation subsides, the first section body is contracted into the second pipe body for adapting to the deformation of the soft soil foundation.
Compared with the prior art, the invention has the beneficial effects that: the processing is simple, the cost is low, the cross section size of the drainage main body is small, and the disturbance to the soft soil foundation is small in the process of applying the drainage main body; when the soft soil foundation subsides, the first section can adapt to the deformation of the soft soil foundation and shrink into the second pipe body, so that the interaction force between the drainage main body and surrounding soil bodies is reduced, the phenomenon that the drainage main body is bent is avoided, meanwhile, the drainage performance is not influenced, and the drainage effect is ensured; the first filter membrane that permeates water and the filter membrane that permeates water of second all adopt degradable material and have certain thickness, can effectively increase the ooze diameter, reduce the hydraulic power slope and fall, and first filter membrane that permeates water and filter membrane that permeates water of second degrade by oneself after burying in the soil for a certain time, the soil body blocks up the filtration pore after the degradation and leads to the drainage main part to lose drainage efficiency, the weak soil foundation stops the drainage, eliminate the hidden danger that the soft soil foundation continued drainage and take place to subside after the worker, also can not pollute the land environment simultaneously, energy saving and environmental protection.
Further, the inner diameter of the first pipe body is 15-17mm, and the pipe wall thickness of the first pipe body and the pipe wall thickness of the second pipe body are 2mm.
Further, the lengths of the first pipe body and the second pipe body are 0.5m.
Further, the first tube body and the second tube body are both made of non-degradable plastics.
Further, the first water permeable filter membrane and the second water permeable filter membrane are both made of ecological reverse filtering materials, the thickness of the first water permeable filter membrane and the second water permeable filter membrane is 3mm, and the ecological reverse filtering materials are made of the following components in percentage by mass: 80-96% of PBST polyester fiber, 2-10% of straw and 2-10% of shredded coconut.
Further, the first permeable filter membrane is prepared from the following components in percentage by mass: 95-96% of PBST polyester fiber, 2-2.5% of straw and 2-2.5% of shredded coconut;
the second permeable filter membrane is prepared from the following components in percentage by mass: 80-81% of PBST polyester fiber, 9.5-10% of straw and 9.5-10% of shredded coconut. By controlling the mixing proportion of the raw materials in the first permeable filter membrane and the second permeable filter membrane ecological reverse filter material, the two materials have different degradation rates.
Further, the plurality of filtering holes are symmetrically arranged at two opposite sides of the first pipe body and the second pipe body respectively, and are uniformly distributed along the axial direction of the first pipe body and the second pipe body respectively.
Further, the opposite sides at the two ends of the first pipe body are respectively provided with a clamping part, the first permeable filter membrane is provided with a first through hole for the clamping part to pass through, the clamping part comprises a spring and a spherical clamping key, the two ends of the spring are respectively fixedly connected with the clamping key and the first pipe body, and the opposite sides at the two ends of the second pipe body are respectively provided with a second through hole for being clamped with the clamping key.
Drawings
FIG. 1 is a schematic view of a degradable environment-friendly telescopic drainage body according to an embodiment of the invention;
FIG. 2 is a schematic view of the longitudinal section of the degradable environment-friendly telescopic drainage body of the invention;
FIG. 3 is an enlarged schematic view of a portion of a longitudinal section of a drainage body of the degradable environment-friendly telescopic drainage body of the present invention prior to settlement of a soft soil foundation;
FIG. 4 is a schematic view of another embodiment of a degradable environment-friendly telescopic drainage body according to the present invention;
fig. 5 is an enlarged partial schematic view of a longitudinal section of a drainage body of the degradable environment-friendly telescopic drainage body of the present invention after the soft soil foundation subsides.
In the figure, 1-drainage body, 11-first section, 111-first pipe, 1111-spring, 1112-snap, 112-first water permeable filter, 1121-first through hole, 12-second section, 121-second pipe, 1211-second through hole, 122-second water permeable filter, 13-filter.
Detailed Description
The invention is further described below with reference to the drawings and examples.
Referring to fig. 1 and 2, fig. 1 is a schematic structural view of an embodiment of a degradable environment-friendly telescopic drainage body according to the present invention, and fig. 2 is a schematic structural view of a longitudinal section of the degradable environment-friendly telescopic drainage body according to the present invention. The degradable environment-friendly telescopic drainage body comprises a drainage main body 1 formed by splicing a first section body 11 and a second section body 12 in a staggered manner, wherein the first section body 11 comprises a first pipe body 111 made of a rigid material and a first permeable filter membrane 112 made of a flexible material and wrapped on the outer surface of the first pipe body 111, and the first permeable filter membrane 112 is fixedly connected with the first pipe body 111 in a heat sealing manner; the second section 12 comprises a second pipe body 121 made of a rigid material and a second permeable filter membrane 122 made of a flexible material and wrapped on the outer surface of the second pipe body 121, and the second permeable filter membrane 122 is fixedly connected with the second pipe body 121 in a heat sealing manner; the first pipe body 111 and the second pipe body 121 are hollow cylindrical, the first pipe body 111 and the second pipe body 121 are provided with a plurality of filtering holes 13, the filtering holes 13 ensure the water passing performance of the drainage main body 1, and the middle pipeline of the first pipe body 111 and the second pipe body 121 is the drainage channel of the drainage main body 1; the outer diameter of the first section 11 is equal to the inner diameter of the second pipe 121, and any one of the two ends of the first section 11 can be clamped in any one of the two ends of the second pipe 121; when the soft soil foundation subsides, the first segment 11 is contracted into the second pipe 121 to accommodate the deformation of the soft soil foundation.
Referring to fig. 3 in combination, fig. 3 is an enlarged schematic view of a portion of a longitudinal section of a drainage body before a soft soil foundation subsides in the degradable environment-friendly telescopic drainage body according to the present invention. Specifically, the inner diameter of the first tube 111 is 15-17mm, the tube wall thickness of the first tube 111 and the tube wall thickness of the second tube 121 are both 2mm, so that the outer diameter of the first tube 111 is 19-21mm, the inner diameter of the second tube 121 is equal to the outer diameter of the first tube plus the thickness of the two first permeable filters 112, the thickness of the first permeable filters 112 is 3mm, that is, the inner diameter of the second tube 121 is 25-27mm, and the outer diameter is 29-31mm. The lengths of the first tube 111 and the second tube 121 are 0.5m, and the first tube 111 and the second tube 121 are made of non-degradable plastics. Specifically, the plurality of filter holes 13 are symmetrically disposed on opposite sides of the first tube 111 and the second tube 121, respectively, and are uniformly distributed along the axial direction of the first tube 111 and the second tube 121, respectively. The specific number of the first section 11 and the second section 12 in the drainage body 1 can be determined according to the actual engineering conditions, so that the total length of the drainage body 1 can be adjusted according to the actual engineering requirements, and the drainage body 1 at least comprises a first section 11 and a second section 12; specifically, any one of the two ends of the first section 11 is clamped in any one of the two ends of the second pipe; specifically, the opposite sides of the two ends of the first pipe body 111 are respectively provided with a clamping part, the first permeable filter membrane 112 is provided with a first through hole 1121 for the clamping part to pass through, the clamping part comprises a spring 1111 and a spherical clamping key 1112, the two ends of the spring 1111 are respectively fixedly connected with the clamping key 1112 and the first pipe body 111, the opposite sides of the two ends of the second pipe body 121 are respectively provided with a second through hole 1211 for being clamped with the clamping key 1112, when the first joint body 11 and the second joint body 12 are spliced, the clamping key 1112 on any one of the two ends of the first pipe body 111 is clamped in the second through hole 1211 on any one of the two ends of the second pipe body 121, so that the splicing position of the first joint body 11 and the second joint body 12 is not required to be limited during splicing, and the splicing forming speed of the drainage main body 1 is improved.
The first water permeable filter 112 and the second water permeable filter 122 are both made of an ecological counter-filter material and have a thickness of 3mm. The ecological reverse filtering material is prepared from the following components in percentage by mass: 80-96% of PBST polyester fiber, 2-10% of straw and 2-10% of shredded coconut, and specifically, the first permeable filter membrane 112 is prepared from the following components in percentage by mass: 95-96% of PBST polyester fiber, 2-2.5% of straw and 2-2.5% of shredded coconut; the second permeable filter 122 is made of the following components in percentage by mass: 80-81% of PBST polyester fiber, 9.5-10% of straw and 9.5-10% of shredded coconut. By controlling the mixing ratio of the raw materials in the ecological reverse filtration material of the first water permeable filter membrane 112 and the second water permeable filter membrane 122, the two materials have different degradation rates, and the requirements of different drainage periods can be met. The first permeable filter membrane 112 and the second permeable filter membrane 122 are made of degradable materials and have a certain thickness, so that the seepage diameter can be effectively increased, the hydraulic gradient is reduced, the first permeable filter membrane 112 and the second permeable filter membrane 122 are automatically degraded after being buried in soil for a certain time, the filter holes 13 are blocked by the degraded soil body to cause the drainage main body 1 to lose drainage effectiveness, the hidden danger that the soft soil foundation continuously drains after construction and subsides is eliminated, and meanwhile, the soil environment is not polluted, so that the energy is saved and the environment is protected.
The implementation process of the invention is as follows: referring to fig. 4 in combination, a schematic structural diagram of another embodiment of the degradable environment-friendly telescopic drainage body according to the present invention is shown. The non-degradable plastic and auxiliary materials are selected, and the first pipe body 111 and the second pipe body 121 are manufactured through drying, heating, melting, screw extrusion and die forming, and the clamping parts are fixed on two opposite sides of two ends of the first pipe body 111, so that the actual number of the first pipe body 111 and the second pipe body 121 can be determined according to engineering practical conditions, such as two first pipe bodies 111 and two second pipe bodies 121 according to engineering requirements. The first and second water permeable filter membranes 112 and 122 are produced by selecting an ecological counter filter material as a raw material. The first water permeable filter membrane 112 is wrapped on the outer surface of the first pipe body 111 in a heat sealing mode to form a first section 11, the second water permeable filter membrane 122 is wrapped on the outer surface of the second pipe body 121 in a heat sealing mode to form a second section 12, and then the two first section 11 and the two second section 12 are spliced in a staggered mode to form the drainage main body 1. After the first section 11 and the second section 12 are spliced in a staggered manner, the clamping key 1112 is clamped on the second through hole of the second pipe 121 through the spring 1111 on the first pipe 111, so that the splicing position of the first section 11 and the second section 12 is maintained.
Referring to fig. 5 in combination, fig. 5 is a partially enlarged schematic view of a longitudinal section of a drainage body after a soft soil foundation of the degradable environment-friendly telescopic drainage body is settled. When the degradable environment-friendly telescopic drainage body works, water in the soft soil foundation can enter the filter holes 13 of the drainage body 1 through the first water permeable filter membrane 112 and the second water permeable filter membrane 122 and then is discharged out of soil body through the drainage body 1. When the soft soil foundation subsides due to drainage, the drainage main body 1 receives the extrusion force of surrounding soil body, because the second permeable filter membrane 122 is made of soft materials, and the first pipe body 111 and the second pipe body 121 are made of rigid materials, therefore, the soil body presses the clamping key 1112 positioned in the second through hole 1211 of the second pipe body 121 into the first through hole 1121 of the first permeable filter membrane 112 in the process of extruding the drainage main body 1, the spring 1111 is in a compressed state, the first section body 11 is not clamped with the second pipe body 121, the supporting force of the second pipe body 121 to the first section body 11 is smaller than the deformation force of the soft soil foundation subsidence, and the first section body 11 is gradually retracted into the second pipe body 121 to adapt to the deformation of the soft soil foundation, so that the drainage main body 1 can deform along with the deformation of the soft soil foundation, the interaction force of the drainage main body 1 and the surrounding soil body is reduced, and the phenomenon that the drainage main body 1 bends is avoided.
Compared with the prior art, the invention has the beneficial effects that: the processing is simple, the cost is low, the cross section size of the drainage main body 1 is small, and the disturbance to the soft soil foundation is small in the process of applying the drainage main body 1; when the soft soil foundation subsides, the first section 11 can be suitable for the soft soil foundation to deform and shrink into the second pipe 121, so that the interaction force between the drainage main body 1 and surrounding soil is reduced, the phenomenon that the drainage main body 1 is bent is avoided, meanwhile, the drainage performance is not influenced, and the drainage effect is ensured; the first permeable filter membrane 112 and the second permeable filter membrane 122 are made of degradable materials and have a certain thickness, so that the seepage diameter can be effectively increased, the hydraulic gradient is reduced, the first permeable filter membrane 112 and the second permeable filter membrane 122 are automatically degraded after being buried in soil for a certain time, the filter holes 13 are blocked by the degraded soil body to cause the drainage main body 1 to lose drainage effectiveness, the soft soil foundation stops draining, the hidden danger of settlement caused by continuous drainage of the soft soil foundation after construction is eliminated, and meanwhile, the soil environment is not polluted, so that the method is energy-saving and environment-friendly.
The present invention is not limited to the above-described embodiments, but, if various modifications or variations of the present invention are not departing from the spirit and scope of the present invention, the present invention is intended to include such modifications and variations as fall within the scope of the claims and the equivalents thereof.
Claims (8)
1. The degradable environment-friendly telescopic drainage body is characterized by comprising a drainage main body formed by axially staggering and splicing a first section body and a second section body;
the first section body comprises a first pipe body made of rigid materials and a first permeable filter membrane made of flexible materials and wrapped on the outer surface of the first pipe body, and the first permeable filter membrane is fixedly connected with the first pipe body in a heat sealing mode;
the second section body comprises a second pipe body made of rigid materials and a second permeable filter membrane made of flexible materials and wrapped on the outer surface of the second pipe body, and the second permeable filter membrane is fixedly connected with the second pipe body in a heat sealing mode;
the first water permeable filter membrane and the second water permeable filter membrane are both made of ecological reverse filtering materials, and the ecological reverse filtering materials are made of the following components in percentage by mass: 80-96% of PBST polyester fiber, 2-10% of straw and 2-10% of shredded coconut;
the first pipe body and the second pipe body are hollow cylinders, and a plurality of filtering holes are formed in the first pipe body and the second pipe body;
the outer diameter of the first section body is equal to the inner diameter of the second pipe body;
any one of the two ends of the first section body can be clamped in any one of the two ends of the second pipe body;
when the soft soil foundation subsides, the first section body is contracted into the second pipe body for adapting to the deformation of the soft soil foundation.
2. The degradable environment-friendly telescopic drainage body according to claim 1, wherein the inner diameter of the first pipe body is 15-17mm, and the pipe wall thickness of the first pipe body and the pipe wall thickness of the second pipe body are both 2mm.
3. The degradable environment-friendly telescopic drainage body according to claim 1, wherein the length of the first pipe body and the second pipe body is 0.5m.
4. The degradable environment-friendly telescopic drainage body according to claim 1, wherein the first pipe body and the second pipe body are both made of non-degradable plastics.
5. The degradable environmentally friendly telescoping drainage body of claim 1 wherein the thickness of the first and second water permeable filter membranes is 3mm.
6. The degradable environment-friendly telescopic drainage body according to claim 5, wherein the first permeable filter membrane is made of the following components in percentage by mass: 95-96% of PBST polyester fiber, 2-2.5% of straw and 2-2.5% of shredded coconut;
the second permeable filter membrane is prepared from the following components in percentage by mass: 80-81% of PBST polyester fiber, 9.5-10% of straw and 9.5-10% of shredded coconut.
7. The degradable environment-friendly telescopic drainage body according to claim 1, wherein the plurality of filtering holes are symmetrically arranged on two opposite sides of the first pipe body and the second pipe body respectively, and are uniformly distributed along the axial direction of the first pipe body and the second pipe body respectively.
8. The degradable environment-friendly telescopic drainage body according to claim 1, wherein clamping parts are arranged on two opposite sides of two ends of the first pipe body, a first through hole for the clamping parts to pass through is formed in the first permeable filter membrane, the clamping parts comprise springs and spherical clamping keys, two ends of the springs are fixedly connected with the clamping keys and the first pipe body respectively, and second through holes for being clamped with the clamping keys are formed in two opposite sides of two ends of the second pipe body respectively.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910806281.2A CN110565622B (en) | 2019-08-29 | 2019-08-29 | Degradable environment-friendly telescopic drainage body |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910806281.2A CN110565622B (en) | 2019-08-29 | 2019-08-29 | Degradable environment-friendly telescopic drainage body |
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| CN110565622A CN110565622A (en) | 2019-12-13 |
| CN110565622B true CN110565622B (en) | 2024-04-02 |
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| CN111305186B (en) * | 2020-02-20 | 2021-09-03 | 浙江省疏浚工程有限公司 | Double-layer vacuum preloading soft soil foundation reinforcing structure |
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| CN210917312U (en) * | 2019-08-29 | 2020-07-03 | 中交四航工程研究院有限公司 | Degradable novel environment-friendly telescopic drainage body |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| AU2017296075A1 (en) * | 2016-07-15 | 2019-01-24 | Hailing YANG | Device and method for soil moisture stabilization and tree or plant protection |
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- 2019-08-29 CN CN201910806281.2A patent/CN110565622B/en active Active
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| KR100491784B1 (en) * | 2004-03-10 | 2005-05-30 | 지호열 | Dehydration Construction Method for softclay using Diains Surrounded Ionized geotextile filter |
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