CN116043816A - Bamboo joint type vacuum preloading drain plate and construction method - Google Patents
Bamboo joint type vacuum preloading drain plate and construction method Download PDFInfo
- Publication number
- CN116043816A CN116043816A CN202310030358.8A CN202310030358A CN116043816A CN 116043816 A CN116043816 A CN 116043816A CN 202310030358 A CN202310030358 A CN 202310030358A CN 116043816 A CN116043816 A CN 116043816A
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- drainage plate
- drainage
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- casing
- bamboo joint
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- 235000017166 Bambusa arundinacea Nutrition 0.000 title claims abstract description 32
- 235000017491 Bambusa tulda Nutrition 0.000 title claims abstract description 32
- 241001330002 Bambuseae Species 0.000 title claims abstract description 32
- 235000015334 Phyllostachys viridis Nutrition 0.000 title claims abstract description 32
- 239000011425 bamboo Substances 0.000 title claims abstract description 32
- 238000010276 construction Methods 0.000 title claims abstract description 19
- 239000002689 soil Substances 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 4
- 230000005855 radiation Effects 0.000 claims description 3
- 238000005452 bending Methods 0.000 claims description 2
- 230000001681 protective effect Effects 0.000 claims description 2
- 210000002478 hand joint Anatomy 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000003014 reinforcing effect Effects 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 238000007596 consolidation process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 235000009754 Vitis X bourquina Nutrition 0.000 description 1
- 235000012333 Vitis X labruscana Nutrition 0.000 description 1
- 240000006365 Vitis vinifera Species 0.000 description 1
- 235000014787 Vitis vinifera Nutrition 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005370 electroosmosis Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000005067 remediation Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
Images
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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W90/00—Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
- Y02W90/10—Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics
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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 relates to a bamboo joint type drain board, which comprises a drain pipe, a drain board single board, a hand-shaped joint and a connecting nut, wherein holes matched with the connecting nut are formed in different positions of the side face of the drain pipe, and the drain board single board is fixedly connected to the drain pipe through the hand-shaped joint and the connecting nut; the connecting nut is hollow and is connected with one end of the hand-shaped connector. The invention also relates to a construction matched set of the bamboo joint type drain board, which comprises a pile casing and a pile casing base, wherein the pile casing can be detachably connected to the pile casing base. The invention also provides a construction method of the construction method.
Description
Technical Field
The invention relates to a novel bamboo joint type vacuum preloading drain plate which is used for treating deep ultra-soft soil foundations with water content more than 75%.
Background
With the development of economy, the contradiction of the shortage of land used for constructing urban infrastructure in coastal areas is increasingly prominent, so that each large city lifts a hot tide for sea reclamation, and dredged fill formed by channel dredging is often used as a foundation for sea reclamation. The treatment and the treatment of the dredging sludge of rivers, lakes and seas become a main bottleneck for restricting ecological construction and economic sustainable development in China. Therefore, large-scale silt remediation engineering is developed, and the vacuum preloading method is widely applied to the reinforcement of ultra-soft soil foundations with the water content of more than 75% as a relatively mature reinforcement method.
Kjellman et al first proposed a vacuum preloading method to solve the problem of reinforcing a blow-filled ultra-soft soil foundation. The vacuum preloading soft soil foundation treatment technology is introduced into China in the 80 th century, and is widely applied to the soft soil foundation treatment field through continuous improvement and innovation. In engineering practice, common vacuum preloading techniques are: direct-discharge vacuum preloading, vacuum preloading and preloading combined with electroosmosis, temperature vacuum preloading, double-layer filter tube sand-free cushion vacuum preloading, deep-layer air pressure splitting vacuum preloading, air injection pressurizing vacuum preloading technology and the like.
The essence of vacuum preloading treatment of the soft soil foundation is the soil consolidation and drainage process, and the mechanism for promoting the soft soil foundation to produce consolidation is divided into two parts: firstly, vacuum load and soil body form vertical pressure difference effect; secondly, a horizontal pressure difference effect is formed between the vertical drainage plate and the surrounding soil body due to vacuum pressure.
When the soft foundation is treated by conventional vacuum preloading, because the soil particles are gathered to form a relatively compact blocking layer on the outer side of the filter membrane of the drain plate, the vacuum negative pressure is difficult to be transmitted into soil outside the blocking layer, and the soil water is difficult to enter the drain plate to be discharged through the blocking layer, and a soil column like a grape string is formed around the drain plate.
The improved vacuum preloading method mainly uses the drain board as a vertical drain system, and although the reinforcing effect of the soft foundation can be enhanced to a certain extent, the influence of vacuum degree attenuation caused by horizontal drainage and drain board clogging on the foundation reinforcing effect is not considered yet. The inventor has proved that the horizontal drainage can improve the reinforcing effect by 10-20% compared with the vertical drainage.
Disclosure of Invention
Aiming at the problems, the invention aims to overcome the defects of the prior art and the device, and combines the specific requirements of site construction, and provides the novel bamboo joint type vacuum preloading drain plate which is simple to manufacture by connecting a vertical drain pipe with a horizontal drain plate, but has high practicability, can solve the problems of horizontal drainage and vacuum degree attenuation caused by the blockage of the drain plate in the site construction process, and realizes good drainage consolidation effect, and in order to realize the purposes, the invention adopts the following technical scheme:
the bamboo joint type drainage plate comprises a drainage pipe 6, a drainage plate single plate 7, a hand joint 8 and a connecting nut 9, wherein holes matched with the connecting nut 9 are formed in different positions on the side face of the drainage pipe 6, and the drainage plate single plate 7 is fixedly connected to the drainage pipe 6 through the hand joint 8 and the connecting nut 9; the coupling nut 9 is hollow and is coupled to one end of the hand joint 8.
Further, the drain board single boards are arranged in pairs on the side surfaces of the drain pipe, and each pair of drain board single boards is arranged on the opposite side surfaces of the drain pipe.
Further, the drain board veneers are arranged on the side face of the drain pipe in a staggered mode.
Further, the drain board veneers are arranged on different planes around the drain board pipes.
The invention provides a construction kit of the bamboo joint type drain board, which comprises a pile casing and a pile casing base, wherein the pile casing can be detachably connected to the pile casing base.
Further, the casing base is conical, and the height of the casing base is larger than that of the drain pipe.
Further, a base drain pipe connection interface is arranged on the pile casing base.
The construction method of the bamboo joint type drainage plate comprises the following steps:
(1) Manufacturing a construction kit comprising a casing and a casing base, the casing being capable of being detachably connected to the casing base;
(2) Bending each single plate of the drainage plate, sleeving the outer side of the bamboo-type drainage plate by using a pile casing, and installing a pile casing base so that the pile casing base is connected with the pile casing;
(3) Pressing the pile casing containing the bamboo joint type drainage plate into ultra-soft soil;
(4) After the bamboo joint type drainage plate is pressed into a preset position, taking out the protective cylinder;
(5) The upper part of the drainage plate pipe is connected with the main pipeline to form a vacuum radiation drainage system.
The invention has quite great application value, can generate great social value by popularization and use, and also provides a novel drain board device for construction and research of vacuum preloading in the scientific research institute, and has the following advantages:
(1) The novel bamboo joint type drain board is connected with the transverse drain board on the basis of the vertical vacuum drain pipe, and the formed bamboo joint type drain board is simple in manufacture, high in practicability and free of complex processing. Although the installation is convenient, the problem of vacuum degree attenuation caused by the blockage of the drain board of the deep ultra-soft soil foundation can be effectively solved.
(2) The novel bamboo joint type drainage plate is simple in structure and good in overall performance, in the construction process, the vacuum degree in the vacuum drainage pipe can be guaranteed, the attenuation of the vacuum degree is transferred to the transverse drainage plate by the vertical drainage plate of the traditional vacuum preloading, and the reinforcement effect is obvious.
Drawings
Fig. 1 is a schematic overall structure of a bamboo joint type drainage plate according to embodiment 1 of the present invention.
Fig. 2 is a schematic structural view of a bamboo joint type drainage board according to embodiment 2 of the present invention
FIG. 3 is a connection diagram of bamboo joint type drain boards
FIG. 4 is a block diagram of a casing base
Fig. 5 is an enlarged view of the hand fitting 8 and the coupling nut 9.
The reference numerals in the figures illustrate: 1, a thin-wall pile casing; 2, a pile casing base; 3 bamboo joint type drainage plates; 4, a base groove; 5 a base drain pipe connecting interface; 6, draining the water plate pipe; 7, a drainage board veneer; 8 hand-type joints; 9 connecting nut
Detailed Description
The invention is described below with reference to the drawings and examples.
Example 1
Referring to fig. 1 and 3, the novel bamboo joint type drain board provided by the invention specifically comprises a drain board single board 7, a hand joint 8, a connecting nut 9 and a drain pipe 6, wherein when a foundation is subjected to vacuum preloading treatment, the drain board single board 7 needs to be connected with one side of the hand joint 8 in advance, the other side of the hand joint 8 is inserted into a reserved hole of the drain pipe 6 in advance through the connecting nut 9 to form a bamboo joint type drain board, and the connecting nut 9 is hollow and is used for communicating the drain board single board 7 and the drain pipe 6.
Referring to fig. 1, fig. 4 and fig. 5, in order to ensure that the bamboo-type drainage plate is smoothly bought into the ground, the drainage plate single plate 7 needs to be bent along a certain direction, the thin-wall pile casing 1 is sleeved on the outer side of the bamboo-type drainage plate 3, the pile casing base 2 is installed, the base drainage pipe connection interface 5 is connected with the drainage plate pipe 6, the base groove 4 is connected with the thin-wall pile casing 1, and the bamboo-type drainage plate is pressed into ultra-soft soil by pile pressing mechanical equipment. After the bamboo joint type drainage plate is pressed into the preset position, the protection cylinder is taken out by rotating in the opposite direction. Finally, the upper part of the drain board pipe 6 is connected with a main pipeline in the circuit to form a vacuum radiation drain system. The bamboo joint type drainage plate has no difference between the materials of the drainage single plates and the materials of the drainage plates on the market, and also adopts plastic materials, so that the bamboo joint type drainage plate has certain flexibility, can be curled by external force, and can be naturally stretched when the external force is removed.
Due to the structural simplicity and the standard universality of all parts, the reinforcing effect and other mechanical effects of the device can be conveniently analyzed and demonstrated through the existing commercial finite element calculation software, so that engineering technicians can conveniently and flexibly set the positions of the connecting nuts 9 to optimally design the bamboo joint type vacuum pre-pressing drain plate according to different actual engineering requirements.
Example 2
Example 2 as shown in fig. 2, the difference from example 1 is only that the arrangement of the drain board veneer 7 on the drain board pipe 6 is different from that of the drain board veneer 7 of example 1. While the embodiment 1 is a pair of drain board veneers 7 connected to opposite sides of the drain board pipe 6, the drain board veneers 7 of the embodiment 2 are staggered, but the connection mode at the connection position is the same.
Example 3
Unlike example 1 or example 2, example 3 does not show that the individual drain board veneers of example 3 are not distributed on one plane, but are arranged on different planes around the drain board pipe, but the connection pattern at the connection point is the same.
Claims (9)
1. The bamboo joint type drainage plate comprises a drainage pipe, a drainage plate single plate, a hand-shaped joint and a connecting nut, wherein holes matched with the connecting nut are formed in different positions on the side face of the drainage pipe, and the drainage plate single plate is fixedly connected to the drainage pipe through the hand-shaped joint and the connecting nut; the connecting nut is hollow and is connected with one end of the hand-shaped connector.
2. The bamboo joint type drainage plate according to claim 1, wherein the drainage plate veneers are arranged in pairs on the side surfaces of the drainage pipe, and each pair of drainage plate veneers are arranged on opposite side surfaces of the drainage pipe.
3. The bamboo joint type drainage plate according to claim 1, wherein the drainage plate veneers are staggered on the side face of the drainage pipe.
4. The bamboo joint type drainage plate according to claim 1, wherein the drainage plate veneers are arranged on different planes around the drainage plate pipes.
5. The construction kit of bamboo joint type drainage plates of any one of claims 1 to 4, comprising a casing and a casing base, wherein the casing is detachably attachable to the casing base.
6. The construction kit of claim 5, wherein the cage base is tapered and has a height greater than a height of the drain pipe.
7. The construction kit of claim 5, wherein a base drain connection is provided on the casing base.
8. The construction method of the bamboo joint type drainage plate according to any one of claims 1 to 4, which is characterized by comprising the following steps:
(1) Manufacturing a construction kit comprising a casing and a casing base, the casing being capable of being detachably connected to the casing base;
(2) Bending each single plate of the drainage plate, sleeving the outer side of the bamboo-type drainage plate by using a pile casing, and installing a pile casing base so that the pile casing base is connected with the pile casing;
(3) Pressing the pile casing containing the bamboo joint type drainage plate into ultra-soft soil;
(4) After the bamboo joint type drainage plate is pressed into a preset position, taking out the protective cylinder;
(5) The upper part of the drainage plate pipe is connected with the main pipeline to form a vacuum radiation drainage system.
9. The method of construction of claim 8 wherein the cage base is tapered with a height greater than the height of the drain pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310030358.8A CN116043816A (en) | 2023-01-10 | 2023-01-10 | Bamboo joint type vacuum preloading drain plate and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310030358.8A CN116043816A (en) | 2023-01-10 | 2023-01-10 | Bamboo joint type vacuum preloading drain plate and construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116043816A true CN116043816A (en) | 2023-05-02 |
Family
ID=86117731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310030358.8A Pending CN116043816A (en) | 2023-01-10 | 2023-01-10 | Bamboo joint type vacuum preloading drain plate and construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116043816A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1158931A (en) * | 1996-12-30 | 1997-09-10 | 邱敏钟 | Soft base treating method by using permeable hose |
| CN101144274A (en) * | 2007-10-18 | 2008-03-19 | 上海交通大学 | Method for carrying vacuum prepressing consolidation by using plastic draining plate with box |
| CN202360434U (en) * | 2011-12-16 | 2012-08-01 | 谢振戈 | Small electric fan |
| KR101234264B1 (en) * | 2012-11-26 | 2013-02-21 | 주식회사 신아건설산업 | Structure for connecting drain boards |
| CN104878739A (en) * | 2015-04-08 | 2015-09-02 | 河海大学 | Drainage material assembly capable of being transversely connected with plastic drainage boards and method for constructing drainage material assembly |
| CN106703009A (en) * | 2017-01-05 | 2017-05-24 | 天津大学 | Vacuum preloading drainage assembly |
| CN212104019U (en) * | 2019-12-10 | 2020-12-08 | 浙江工业大学 | Novel geotechnical pipe bag sludge dewatering device combined with vacuum preloading |
| CN112127352A (en) * | 2020-08-25 | 2020-12-25 | 盐城工学院 | Anti-clogging vacuum consolidation drainage and special-shaped pile forming soft soil reinforcing method based on waste tires |
| CN113309070A (en) * | 2021-06-01 | 2021-08-27 | 浙江大学 | Drainage moso bamboo for soft soil foundation treatment and construction method thereof |
| CN113668499A (en) * | 2021-09-08 | 2021-11-19 | 天津大学 | Vacuum preloading drainage system and drainage method |
| CN218204364U (en) * | 2022-09-13 | 2023-01-03 | 戴茂容 | Anchor shoe for arranging plastic drainage plate |
-
2023
- 2023-01-10 CN CN202310030358.8A patent/CN116043816A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1158931A (en) * | 1996-12-30 | 1997-09-10 | 邱敏钟 | Soft base treating method by using permeable hose |
| CN101144274A (en) * | 2007-10-18 | 2008-03-19 | 上海交通大学 | Method for carrying vacuum prepressing consolidation by using plastic draining plate with box |
| CN202360434U (en) * | 2011-12-16 | 2012-08-01 | 谢振戈 | Small electric fan |
| KR101234264B1 (en) * | 2012-11-26 | 2013-02-21 | 주식회사 신아건설산업 | Structure for connecting drain boards |
| CN104878739A (en) * | 2015-04-08 | 2015-09-02 | 河海大学 | Drainage material assembly capable of being transversely connected with plastic drainage boards and method for constructing drainage material assembly |
| CN106703009A (en) * | 2017-01-05 | 2017-05-24 | 天津大学 | Vacuum preloading drainage assembly |
| CN212104019U (en) * | 2019-12-10 | 2020-12-08 | 浙江工业大学 | Novel geotechnical pipe bag sludge dewatering device combined with vacuum preloading |
| CN112127352A (en) * | 2020-08-25 | 2020-12-25 | 盐城工学院 | Anti-clogging vacuum consolidation drainage and special-shaped pile forming soft soil reinforcing method based on waste tires |
| CN113309070A (en) * | 2021-06-01 | 2021-08-27 | 浙江大学 | Drainage moso bamboo for soft soil foundation treatment and construction method thereof |
| CN113668499A (en) * | 2021-09-08 | 2021-11-19 | 天津大学 | Vacuum preloading drainage system and drainage method |
| CN218204364U (en) * | 2022-09-13 | 2023-01-03 | 戴茂容 | Anchor shoe for arranging plastic drainage plate |
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