CN217976303U - Fretwork drain pipe is used in civil engineering - Google Patents
Fretwork drain pipe is used in civil engineering Download PDFInfo
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- CN217976303U CN217976303U CN202222130816.9U CN202222130816U CN217976303U CN 217976303 U CN217976303 U CN 217976303U CN 202222130816 U CN202222130816 U CN 202222130816U CN 217976303 U CN217976303 U CN 217976303U
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- drain pipe
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 41
- 239000004033 plastic Substances 0.000 claims abstract description 10
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- 239000000463 material Substances 0.000 claims abstract description 6
- 238000010276 construction Methods 0.000 claims description 14
- 239000002002 slurry Substances 0.000 claims description 6
- QNRATNLHPGXHMA-XZHTYLCXSA-N (r)-(6-ethoxyquinolin-4-yl)-[(2s,4s,5r)-5-ethyl-1-azabicyclo[2.2.2]octan-2-yl]methanol;hydrochloride Chemical compound Cl.C([C@H]([C@H](C1)CC)C2)CN1[C@@H]2[C@H](O)C1=CC=NC2=CC=C(OCC)C=C21 QNRATNLHPGXHMA-XZHTYLCXSA-N 0.000 claims description 2
- 239000011435 rock Substances 0.000 abstract description 8
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- 239000002689 soil Substances 0.000 description 11
- 238000010586 diagram Methods 0.000 description 4
- 229920000098 polyolefin Polymers 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000009435 building construction Methods 0.000 description 3
- 239000011440 grout Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- -1 Polyethylene Polymers 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
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- Lining And Supports For Tunnels (AREA)
Abstract
The utility model provides a fretwork drain pipe for civil engineering, includes the body of being made by plastic material, is equipped with a fretwork section at least along body length direction, is equipped with a plurality of fretwork holes on the pipe wall of fretwork section, and the fretwork hole is used for the business turn over of water or thick liquid. This fretwork drain pipe has good drainage performance, even the mouth of pipe is blockked up, can not hinder the drainage effect of this fretwork drain pipe yet. For the fixed water passing area of the pipe orifice, the water passing area of the hollowed-out hole can be designed to be larger according to requirements, and the size and the total water passing area of the hollowed-out hole can be customized according to the geological characteristics of the soil-rock layer. For the fixed directional diversion of mouth of pipe, the radiating scope of the circumference diversion of fretwork hole is bigger, and drainage effect is better. In addition, the structure of the hollow-out drain pipe is beneficial to realizing anchoring and reinforcement of the primary lining and the secondary lining on one hand, and reducing the occurrence of settlement; on the other hand, the structure of this fretwork drain pipe is favorable to realizing the packing to the annular gap, has thoroughly solved the problem of leaking.
Description
Technical Field
The utility model belongs to the technical field of the building construction and specifically relates to a fretwork drain pipe is used in building construction.
Background
In civil engineering works, problems of drainage, such as secondary lining of tunnels, are often encountered. The construction of the two lining linings is carried out in sections, and after one section of concrete is solidified, the next section of concrete is poured. This causes a problem that water leaks from the joint between the two sections of concrete and water in the soil and rock layer outside the tunnel leaks into the tunnel through the joint.
The existing solution is to pre-embed the drain pipe 2 when the primary lining 5 is poured, as shown in fig. 1. When the second lining 1 is poured, the water stop steel plate 3 is embedded in advance. The drain pipe 2 is used for guiding water in the soil stone layer 4 into the tunnel, and the drain pipe 2 is plugged in a grouting mode at the later stage of construction. The purpose of setting up drain pipe 2 is, reduces the water pressure in the stone layer 4, before next section concrete setting, avoids water pressure to cause the destruction to the seam. The water stop steel plate 3 has the function of blocking water permeation and preventing water leakage at the joint. The problem that exists at present is, the mouth of pipe that drain pipe 2 is located 4 one sides on the earth stone layer is blockked up by earth, stone easily, and drainage effect is not good. In addition, the moisture content of the earth and rock layers 4 of different geology is different, for example, when a pipe orifice is inserted into the rock layer, even if the earth and rock layer 4 contains a large amount of water, the water cannot be discharged.
In addition, because the plastic tubing is with low costs, easily construction, the drain pipe that uses at present is mostly the plastic tubing. Because the plastic pipe has contractibility and the concrete also contracts after solidification, the outer wall of the plastic pipe cannot be integrated with the concrete, and an annular gap is generated. Even if the drainage pipe is plugged, water in the soil stone layer enters the tunnel along the annular gap.
SUMMERY OF THE UTILITY MODEL
In order to overcome not enough among the background art, the utility model discloses a fretwork drain pipe is used in building construction adopts following technical scheme:
the utility model provides a fretwork drain pipe for civil engineering, includes the body of being made by plastic material, is equipped with a fretwork section at least along body length direction, is equipped with a plurality of fretwork holes on the pipe wall of fretwork section, and the fretwork hole is used for the business turn over of water or thick liquid.
Further improve technical scheme, be provided with the gasbag in the body, the gasbag can the shutoff after aerifing the fretwork hole.
According to the technical scheme, the air bag is a hose which is closed at one end and can be radially expanded.
Further improving the technical scheme that the shape of the hollow holes is circular, rhombic or rectangular.
Further improve technical scheme, the fretwork hole is irregularly arranged on the pipe wall of fretwork section.
Further improve technical scheme, the fretwork hole is arranged in array on the pipe wall of fretwork section.
Further improve technical scheme, one of them mouth of pipe of body, detachably is connected with the end cap.
According to the technical scheme, the number of the hollow sections is further improved, one section between every two adjacent hollow sections is a closed section, and the length of the closed section is 1-5 times that of the hollow sections.
Owing to adopt above-mentioned technical scheme, compare the background art, the utility model discloses following beneficial effect has:
in one embodiment, even if the pipe orifice is blocked by soil and stone or the pipe orifice is positioned in a rock layer which cannot be permeated with water, the hollow-out water drainage pipe cannot prevent water in the soil and stone layer from entering the pipe from the hollow-out hole and discharging from the pipe orifice at the other end. The water passing area of the hollow holes can be designed to be larger according to requirements relative to the water passing area fixed by the pipe orifice. Moreover, the hollow drainage pipe can customize the size of the hollow holes and the total water passing area according to the geological characteristics of the soil-rock layer, and prevents undersized stones from entering the pipe through the hollow holes to block a drainage channel. For the fixed directional diversion of mouth of pipe, the radiating scope of the circumference diversion of fretwork hole is bigger, and drainage effect is better.
In another embodiment, the hollow-out drain pipe is beneficial to realizing anchoring and reinforcement of the primary lining and the secondary lining on one hand, and reducing the occurrence of settlement; on the other hand, the structure of this fretwork drain pipe is favorable to realizing the packing to the annular gap, has thoroughly solved the problem of leaking.
Drawings
Fig. 1 shows a schematic view of a conventional drain pipe in a two-lined construction.
Fig. 2 is a partial structural schematic view of the hollow-out drain pipe in embodiment 1.
Fig. 3 is a schematic view showing the hollow-out drain pipe in the second lining construction in the embodiment 1.
Fig. 4 is a schematic structural view of the hollow-out drain pipe in embodiment 2.
Fig. 5 is a schematic view showing the hollow-out drain pipe in the second lining construction in the embodiment 2.
Fig. 6 is a schematic view of the hollow-out drainage pipe in grouting in embodiment 2.
FIG. 7 is a sectional view showing the case of injecting slurry into and out of the hollow drainpipe according to example 2.
In the figure: 1. a second liner; 2. a drain pipe; 3. a water stop steel plate; 4. a layer of terra cotta; 5. primary lining; 6. hollowing out a drain pipe; 61. a pipe body; 611. a closing section; 612. a hollow-out section; 62. hollowing out holes; 7. an air bag; 8. slurry; 9. and (6) grouting a plug.
Detailed Description
Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention. It should be noted that in the description of the present invention, the terms "front", "back", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate directions or positional relationships based on those shown in the drawings, which are merely for convenience of description, but do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. It should also be noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly and encompass, for example, both fixed and removable connections or integral connections; can be mechanically or electrically connected; either directly or indirectly through intervening media, or through both elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Example 1:
in this embodiment, the hollow-out drain pipe 6 is used in the lining construction of the second lining 1 of the tunnel, and water in the earth stone layer 4 is led into the tunnel, so that the joint is prevented from being damaged by water pressure before the next section of concrete is solidified.
Fig. 2 is a partial schematic view of the hollow-out drain pipe. The hollow drain pipe 6 includes a pipe body 61 made of polyolefin material. Polyolefin is one of general-purpose plastics, and mainly comprises Polyethylene (PE), polypropylene (PP), POE, EVA, MMA and other high-grade olefin polymers. The polyolefin plastic pipe can be formed by processes of extrusion, blow molding, injection and the like, is low in price and can save the construction cost. It should be noted that the hollow-out drain pipe 6 can be made of other materials, such as PVC or other plastic materials.
A hollow section 612 is arranged at one end of the tube body 61 along the length direction of the tube body 61, a plurality of hollow holes 62 are arranged on the tube wall of the hollow section 612, and the hollow holes 62 are used for enabling the slurry 8 or water to enter the tube from the tube or enabling the slurry 8 or water to enter the tube from the tube.
The shape of the hollow-out hole 62 shown in fig. 2 is rectangular. It is noted that the holes 62 may also be circular, diamond-shaped, or other shapes. In addition, the hollow holes 62 shown in fig. 2 are arranged in an array on the tube wall of the hollow section 612, and the hollow holes 62 may also be arranged in an irregular manner.
Fig. 3 is a schematic diagram of the hollow-out drainage pipe in two-lining construction. As shown in fig. 3, the hollow-out drain pipe 6 has a hollow-out section 612 on one side of the earthen stone layer 4, and the hollow-out section 612 has a hollow-out hole 62. This fretwork drain pipe 6 is when inserting soil stone layer 4, even the mouth of pipe is blockked up by earth, stone, or the mouth of pipe is located the rock stratum that can not seep water, can not hinder the water in soil stone layer 4 from the fretwork hole 62 admission pipe in to discharge in the mouth of pipe from the other end. And the water passing area of the hollow holes 62 can be designed to be larger according to requirements relative to the water passing area of the pipe orifice fixing. In addition, according to the geological characteristics of the stone layer 4 can customize the size of the hollowed-out holes 62 and the total water passing area, and prevent the undersized stones from entering the pipe through the hollowed-out holes 62 to block the drainage channel. For the fixed directional water diversion of the pipe orifice, the radiation range of the circumferential water diversion of the hollow hole 62 is larger, and the drainage effect is better. When some loose soil and stone layers 4 are met, even the plug can be used for plugging the pipe opening, so that the influence on the drainage of the hollow section 612 caused by too long depth of soil and stone entering the pipe is avoided.
The technical scheme in this embodiment has solved the problem that current drain pipe drainage effect is not good among the background art, but can't solve the water leakage problem of circumferential weld, consequently still needs to improve this technical scheme.
Example 2:
fig. 4 shows a schematic structural diagram of the hollow-out drain pipe. In fig. 4, three hollow sections 612 are arranged on the pipe body 61 of the hollow drain pipe 6, one section between two adjacent hollow sections 612 is a closed section 611, and the length of the closed section 611 is 1.5 times that of the hollow section 612. An air bag 7 is arranged in the tube body 61, and the air bag 7 can seal the hollow hole 62 after being inflated. In the present embodiment, the bladder 7 is a radially expandable hose having one end closed, and an air faucet is connected to the other end of the hose.
Fig. 5 is a schematic diagram showing the hollow-out drainage pipe in the construction of a two-lining. When the concrete of the second liner 1 is poured, the concrete enters the pipe through the hollow holes 62 and blocks the hollow drain pipe 6, so that the hollow drain pipe 6 loses the drainage function. This problem can be solved by providing the air bag 7 in the tube body 61. Specifically, before pouring the concrete of the second liner 1, the air bag 7 is inflated through the air nozzle, the air bag 7 radially expands to block the first section and the second section of the hollow-out section 612, and then the concrete of the second liner 1 is poured, so that the concrete cannot enter the pipe. After the concrete has set, the airbag 7 is ready to be removed from the tube 61. Then, the drain pipe 6 is hollowed to form a first hollow section 612 and a second hollow section 612, because the water leakage problem of the circular seam is solved.
Fig. 6 is a schematic diagram of the hollow-out drain pipe during grouting. In fig. 6, the grouting plug 9 is firstly inserted at the right end of the hollow-out drain pipe 6, the soil and stone layer 4 is subjected to diffusion grouting through the pipe opening and the hollow-out holes 62 on the third hollow-out section 612, the grout 8 is diffused towards the periphery of the soil and stone layer 4 in a tree root shape, and the grout 8 forms a tree root-shaped branch structure after being solidified, so that the primary lining 5 and the secondary lining 1 are anchored and reinforced. Meanwhile, the slurry 8 fills up the porosity and the pores caused by the water loss of the earth stone layer 4 after solidification, and reduces the risk of ground settlement. This anchoring reinforcement and anti-settling function is similar to that of a sleeve valve tube.
Fig. 7 shows a cross-sectional view of grouting inside and outside the hollowed-out drain pipe. The grouting plug 9 performs grouting from right to left, the grout 8 fills the space in the pipe, enters the annular gap between the hollow-out drain pipe 6 and the concrete of the second liner 1 through the hollow-out holes 62 on the first section hollow-out section 612 and the second section hollow-out section 612, and fills the annular gap, so that the hollow-out drain pipe 6 is completely sealed in the concrete of the second liner 1, and the possibility of water leakage is thoroughly eliminated.
Therefore, the hollow-out drain pipe can greatly improve the drainage effect and avoid the water leakage phenomenon.
It is worth noting that the hollow-out drain pipe is not limited to the field of tunnel construction, and can be used for construction of underground buildings such as foundation pits and air dams.
The details of which are not described in the prior art. Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a fretwork drain pipe is used in civil construction, characterized by: the device comprises a pipe body made of plastic materials, at least one hollow section is arranged along the length direction of the pipe body, a plurality of hollow holes are arranged on the pipe wall of the hollow section, and the hollow holes are used for the inlet and outlet of water or slurry; an air bag is arranged in the tube body, and the air bag can block the hollow hole after being inflated.
2. The hollowed-out drain pipe for civil engineering as claimed in claim 1, wherein: the air bag is a flexible pipe which is closed at one end and can be expanded radially.
3. The hollow-out drain pipe for civil construction as claimed in claim 1, wherein: the shape of the hollow holes is circular, rhombic or rectangular.
4. The hollowed-out drain pipe for civil engineering as claimed in claim 1, wherein: the hollow holes are irregularly arranged on the pipe wall of the hollow section.
5. The hollowed-out drain pipe for civil engineering as claimed in claim 1, wherein: the hollow holes are arrayed on the pipe wall of the hollow section.
6. The hollowed-out drain pipe for civil engineering as claimed in claim 1, wherein: one of the pipe orifices of the pipe body is detachably connected with a plug.
7. The hollowed-out drain pipe for civil engineering as claimed in claim 1, wherein: the hollow sections are multiple, one section between every two adjacent hollow sections is a closed section, and the length of the closed section is 1-5 times that of the hollow sections.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222130816.9U CN217976303U (en) | 2022-08-15 | 2022-08-15 | Fretwork drain pipe is used in civil engineering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222130816.9U CN217976303U (en) | 2022-08-15 | 2022-08-15 | Fretwork drain pipe is used in civil engineering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217976303U true CN217976303U (en) | 2022-12-06 |
Family
ID=84257939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222130816.9U Active CN217976303U (en) | 2022-08-15 | 2022-08-15 | Fretwork drain pipe is used in civil engineering |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217976303U (en) |
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2022
- 2022-08-15 CN CN202222130816.9U patent/CN217976303U/en active Active
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