CN110258505B - Soft foundation treatment drain pipe and matched drain board - Google Patents
Soft foundation treatment drain pipe and matched drain board Download PDFInfo
- Publication number
- CN110258505B CN110258505B CN201910636579.3A CN201910636579A CN110258505B CN 110258505 B CN110258505 B CN 110258505B CN 201910636579 A CN201910636579 A CN 201910636579A CN 110258505 B CN110258505 B CN 110258505B
- Authority
- CN
- China
- Prior art keywords
- drain
- drain pipe
- connecting section
- bayonet
- soft foundation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000007789 sealing Methods 0.000 claims description 15
- 210000002268 wool Anatomy 0.000 claims description 5
- 239000004576 sand Substances 0.000 abstract description 14
- 230000005540 biological transmission Effects 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 7
- 238000010276 construction Methods 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000012528 membrane Substances 0.000 description 4
- 239000002689 soil Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004746 geotextile Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000013049 sediment Substances 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
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Agronomy & Crop Science (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)
- Sewage (AREA)
Abstract
The invention discloses a soft foundation treatment drain pipe and a matched drain board in the technical field of soft foundation treatment, wherein the drain pipe comprises a water delivery section and a connecting section which are mutually communicated, a bayonet is arranged at the bottom of the connecting section, and the upper end of the drain board can be clamped and sealed at the bayonet of the connecting section. The beneficial effects of the invention are as follows: the direct clamping connection of the drain board and the drain pipe is utilized, the installation efficiency is high, the connection is stable and reliable, the vacuum transmission path can directly reach the drain board from the drain pipe, the vacuum loss of a sand cushion layer link in the traditional process is reduced, the semicircular section drain pipe is less than the middle coarse sand which needs to be paved in the common circular section drain pipe, the engineering cost is reduced, and the construction efficiency is improved.
Description
Technical Field
The invention relates to the technical field of soft foundation treatment, in particular to a soft foundation treatment drain pipe and a matched drain board.
Background
In the soft foundation vacuum preloading treatment process, water in the soft foundation needs to be pumped away by utilizing a vacuum pump, the soft foundation is generally realized through a drain pipe and a drain board, the drain pipe needs to be buried in a middle coarse sand cushion layer with the thickness of 50cm, one end of a plastic drain board is inserted into the soft foundation, the other end of the plastic drain board needs to be manually bound on the drain pipe, the vacuum pump is directly connected with the drain pipe, a vacuum transmission path is sequentially provided with the drain pipe, the sand cushion layer, the plastic drain board and a soft soil layer, and each transmission link has loss of vacuum transmission, so that the soft foundation treatment effect is influenced. The existing drain pipe is generally a PVC pipe with a circular section, a nonwoven geotextile filter membrane is arranged outside the drain pipe, a corrugated pipe is adopted for adapting to uneven deformation of a foundation, a penetrating air-extracting drain hole in the pipe wall is required to meet air-extracting and water-draining requirements between the drain pipe and a sand cushion, the sand cushion is generally middle coarse sand with the thickness of about 50cm, and in a large-area vacuum pre-pressing treatment project, the sand consumption is large, so that the engineering cost is greatly increased.
Disclosure of Invention
In order to overcome the defects of large vacuum transmission loss, low efficiency, high labor intensity, high cost and the like caused by the fact that a large amount of medium coarse sand needs to be filled in a drain pipe and a drain board adopted in the existing soft foundation treatment, the invention aims to solve the technical problems that: the soft foundation treatment drain pipe and the matched drain plate are low in vacuum loss, low in cost and high in installation and drainage efficiency.
The technical scheme adopted for solving the technical problems is as follows:
the soft foundation treatment drain pipe and supporting drain bar, the drain pipe includes the delivery segment and the linkage segment of mutual intercommunication, the bottom of linkage segment is equipped with the bayonet socket, but the upper end chucking seal of drain bar is in the bayonet socket department of linkage segment.
Further, a supporting bar is arranged at two ends of the bayonet in the length direction respectively, the upper end and the lower end of the supporting bar are connected with the upper surface and the lower surface of the connecting section respectively, first fixed teeth are arranged on the inner side of the supporting bar, and second fixed teeth matched with the first fixed teeth are arranged on two sides of the drainage plate.
Further, the supporting strips are made of hard plastic.
Further, a sealing block is arranged on the outer side of the bayonet of the connecting section, a circle of groove facing to the lower side of the connecting section is formed in the upper edge of the sealing block, and sealing wool tops are arranged in the groove.
Further, the radial sections of the water delivery section and the connecting section of the drain pipe are semicircular.
Further, the water delivery section of the drain pipe is a corrugated pipe.
The beneficial effects of the invention are as follows: the direct clamping connection of the drain board and the drain pipe is utilized, the installation efficiency is high, the connection is stable and reliable, the vacuum transmission path can directly reach the drain board from the drain pipe, the vacuum loss of a sand cushion layer link in the traditional process is greatly reduced, the semicircular section drain pipe is less than the common circular section drain pipe in which middle coarse sand is required to be paved, the engineering cost is reduced, and the construction efficiency is improved.
Drawings
Fig. 1 is a front view of the drain pipe of the present invention.
Fig. 2 is a bottom view of the drain pipe of the present invention.
Fig. 3 is a side view of the drain pipe of the present invention.
Fig. 4 is a schematic view of the support bar structure of the present invention.
Fig. 5 is a schematic view of a drain board structure of the present invention.
FIG. 6 is a schematic view of the connection structure of the drain pipe and the drain board of the present invention.
Fig. 7 is a detailed construction diagram of the bayonet of the drain pipe connecting section of the present invention.
The drawing is marked as 1-water delivery section, 2-connecting section, 3-drain board, 4-support bar, 5-sealing block, 6-filter membrane, 21-bayonet, 31-second fixed tooth, 41-first fixed tooth, 51-groove and 52-sealing wool top.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in fig. 1 to 6, the soft foundation treatment drain pipe and the matched drain plate of the invention comprise a water delivery section 1 and a connecting section 2 which are mutually communicated, a bayonet 21 is arranged at the bottom of the connecting section 2, and the upper end of the drain plate 3 can be clamped and sealed at the bayonet 21 of the connecting section 2. The clamping sealing mode can be realized by adopting plastic interference fit.
The application process of the invention is as follows: firstly, the drain board 3 is inserted into a soft foundation, then a drain pipe is arranged, a water outlet at the upper end of the drain board 3 is inserted into a bayonet 21 at the bottom of the connecting section 2, a small amount of medium coarse sand is paved, and finally, a vacuum pump is started, so that water in the soft foundation is pumped out through the drain pipe and the drain board 3.
In order to improve the connection reliability of the drain board 3 and the connection section 2, two ends of the bayonet 21 in the length direction are respectively provided with a support bar 4, as shown in fig. 3, the upper end and the lower end of the support bar 4 are respectively connected with the upper surface and the lower surface of the connection section 2, the inner side of the support bar 4 is provided with a first fixed tooth 41, as shown in fig. 4, and two sides of the drain board 3 are provided with second fixed teeth 31 matched with the first fixed tooth 41, as shown in fig. 5. The first fixed teeth 41 are preferably in the form of upper tooth surface level, lower tooth surface inclined, and the second fixed teeth 31 are in the form of opposite upper tooth surface inclined, lower tooth surface level, which can facilitate the insertion of the drain plate 3 into the bayonet 21 and prevent the drain plate 3 from falling off.
The supporting strips 4 are made of hard plastic. By adopting hard plastic, on one hand, the drain plate 3 can be inserted and detached by plastic deformation, and on the other hand, the connecting section 2 can be supported to a certain extent, so that the condition that the connection section 2 deforms to influence the connection condition of the drain pipe and the drain plate 3 is avoided.
In order to improve the drainage efficiency, besides ensuring the connection reliability of the drainage pipe and the drainage plate 3, the loss of vacuum in the transmission process needs to be reduced as much as possible, namely, the connection tightness is improved, therefore, a further scheme is that a sealing block 5 is arranged outside a bayonet 21 of the connecting section 2, as shown in fig. 7, a circle of grooves 51 facing to the lower side of the connecting section 2 are arranged on the sealing block 5 along the bayonet 21, and sealing wool tops 52 are arranged in the grooves 51. Because the surface of the plate core of the traditional plastic drain plate, such as an SPB-C plastic drain plate, is provided with groove teeth, the outer side of the plate core is also sleeved with a filter membrane 6, and gaps can be formed when the plate core is directly connected with the bayonet 21 of the connecting section 2, so that vacuum transmission is affected. After the sealing block 5 is added, the filter membrane 6 on the outer side can be pressed and stacked in the groove 51 in the inserting process of the plastic drain plate, and the sealing performance is improved under the action of the sealing wool tops 52, so that sediment is prevented from entering the drain pipe from the bayonet 21.
The conventional drain pipe is generally a circular pipe, and in order to facilitate the plugging with the drain plate 3, the water delivery section 1 and the connecting section 2 of the drain pipe are designed into a structure with semicircular radial sections. The semicircular pipe has other advantages, such as large contact area with the ground, difficult rolling to influence the connection with the drain plate 3, and lower drain pipe height, and reduced soil laying thickness. In addition, in order to adapt to the fluctuation of geology in the soft foundation treatment process, the water delivery section 1 of the drain pipe adopts a corrugated pipe.
The invention uses the direct clamping connection of the drainage plate and the drainage pipe to transfer vacuum, reduces the vacuum loss of the sand cushion link in the traditional process, has less middle coarse sand needed to be paved for the semicircular section drainage pipe compared with the common circular section drainage pipe, greatly reduces engineering cost, improves construction efficiency, and has good practicability and application prospect.
Claims (4)
1. The drain pipe and supporting drain bar are handled to soft foundation, characterized by: the drain pipe comprises a water delivery section (1) and a connecting section (2) which are communicated with each other, a bayonet (21) is arranged at the bottom of the connecting section (2), and the upper end of the drain plate (3) can be clamped and sealed at the bayonet (21) of the connecting section (2); the two ends of the bayonet (21) in the length direction are respectively provided with a supporting bar (4), the upper end and the lower end of the supporting bar (4) are respectively connected with the upper surface and the lower surface of the connecting section (2), the inner side of the supporting bar (4) is provided with a first fixed tooth (41), the two sides of the drainage plate (3) are provided with second fixed teeth (31) matched with the first fixed teeth (41), the first fixed teeth (41) are horizontal on the upper side tooth surface, the lower side tooth surface is inclined, the second fixed teeth (31) are inclined on the upper side tooth surface, and the lower side tooth surface is horizontal; the sealing block (5) is arranged on the outer side of a bayonet (21) of the connecting section (2), a circle of groove (51) facing the lower side of the connecting section (2) is formed in the upper edge of the sealing block (5) along the bayonet, and sealing wool tops (52) are arranged in the groove (51).
2. The soft foundation treatment drain pipe and associated drain board of claim 1, wherein: the supporting strips (4) are made of hard plastic.
3. A soft foundation treatment drain and associated drain board as claimed in claim 1 or claim 2, wherein: the radial sections of the water delivery section (1) and the connecting section (2) of the drain pipe are semicircular.
4. A soft foundation treatment drain and associated drain bar as defined in claim 3, wherein: the water delivery section (1) of the water delivery pipe is a corrugated pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910636579.3A CN110258505B (en) | 2019-07-15 | 2019-07-15 | Soft foundation treatment drain pipe and matched drain board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910636579.3A CN110258505B (en) | 2019-07-15 | 2019-07-15 | Soft foundation treatment drain pipe and matched drain board |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110258505A CN110258505A (en) | 2019-09-20 |
| CN110258505B true CN110258505B (en) | 2024-06-25 |
Family
ID=67926267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910636579.3A Active CN110258505B (en) | 2019-07-15 | 2019-07-15 | Soft foundation treatment drain pipe and matched drain board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110258505B (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN110258505A (en) | 2019-09-20 |
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