CN214033717U - Multifunctional underground structure embedded pipe - Google Patents
Multifunctional underground structure embedded pipe Download PDFInfo
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- CN214033717U CN214033717U CN202022859020.8U CN202022859020U CN214033717U CN 214033717 U CN214033717 U CN 214033717U CN 202022859020 U CN202022859020 U CN 202022859020U CN 214033717 U CN214033717 U CN 214033717U
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Abstract
The utility model relates to the technical field of buildings, and discloses a multifunctional underground structure embedded pipe, which comprises a pipe body, wherein a plurality of grouting holes are arranged along the circumferential direction and the axial direction; an optical fiber embedded in the tube body; the sleeve pipe is sleeved on the outer wall of the pipe body and is provided with a plurality of grooves along the circumferential direction and the axial direction. The utility model provides a pair of multi-functional underground structure pre-buried pipe has data collection, cooling and slip casting function concurrently, and work efficiency is effectively improved to the rational utilization concrete inner space in integrated design to effectively protect optic fibre, be convenient for batch production, transportation and on-the-spot laying.
Description
Technical Field
The utility model relates to a building technical field especially relates to a multi-functional underground structure embedded pipe.
Background
With the progress of the times and the development of society, tunnel and underground engineering are increasingly emphasized by people and are widely applied to a plurality of fields such as traffic and logistics, municipal facilities, water conservancy and hydropower, resource storage, mineral development, national defense construction and the like.
The tunnel and underground engineering project has the characteristics of large concealment, complex technology, strong operation circulation, limited operation space and the like, the mechanical state of the structure is constantly changed in the construction process, and a plurality of uncertain risk factors exist. In order to ensure the construction safety, the underground structure is generally monitored in real time by means of embedding sensors, strain gauges, stressometers and the like in the structure. In recent years, the optical fiber sensor has received high attention in the health monitoring system of underground engineering due to its advantages of small volume, light weight, high sensitivity, corrosion resistance, electromagnetic interference resistance, etc., and is popularized and applied to engineering practice at home and abroad.
Most of underground works are mass concrete, and a large amount of hydration heat causes uneven temperature deformation and temperature stress in the concrete pouring process, so that cracks are generated in the concrete or on the surface of the concrete. In order to reduce the influence of hydration heat on the quality of concrete, a freezing pipe is generally arranged in the concrete.
In order to reduce or avoid groundwater infiltration, a grouting pipe is generally embedded in the concrete, and after concrete curing is finished, concrete cracks are plugged by injecting grout, so that the compactness and durability of the concrete are improved.
The optical fiber technology belongs to the monitoring field, a cooling pipe is a construction measure, a grouting pipe belongs to a water-proof and drainage project, and the three are difficult to be connected together, so that each professional is responsible for the optical fiber, the cooling pipe and the pre-buried grouting pipe.
In underground engineering, distributed optical cable laying is divided into comprehensive laying and fixed-point laying. The comprehensive arrangement refers to the fixation on the surface or inside of the structure in the forms of sticking, slotting or pre-embedding into the structure, and the like, and is suitable for cast-in-place continuous structures, such as underground continuous walls, secondary linings and the like; the fixed-point arrangement is fixed on the surface of the structure in a way of riding a horse card, customizing clamping pieces, customizing discs and the like, and is suitable for prefabricating discontinuous structures, such as shield segments and the like. However, in the process of carrying out construction dynamic monitoring and structural internal stress and strain monitoring in the use stage on the underground engineering by using the distributed optical fiber, due to the reasons of non-close and breakage of the optical fiber, signal adjustment and receiving are difficult, the accuracy of monitoring data is low, and the error is large.
On the other hand, the layout of the cooling pipes and the grouting pipes and the steel bars are difficult to avoid cross conflict, the internal space of the concrete is difficult to reasonably utilize, and unnecessary waste is caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims at: the utility model provides a multi-functional underground structure embedded pipe to solve prior art data collection, cooling and slip casting function and need the independent structure realization respectively, be difficult to the technical problem of rational utilization embedded structure concrete inner space.
In order to achieve the above object, the utility model provides a multi-functional underground structure embedded pipe, include:
the pipe body is provided with a plurality of grouting holes along the circumferential direction and the axial direction;
an optical fiber embedded in the tube body;
the sleeve pipe is sleeved on the outer wall of the pipe body and is provided with a plurality of grooves along the circumferential direction and the axial direction.
In some embodiments of the present application, the arrangement rule of the grouting holes is: four grouting holes are arranged in a row at equal intervals along the circumferential direction of the pipe body, and a plurality of rows of grouting holes are arranged at equal intervals along the axial direction of the pipe body.
In some embodiments of the present application, a ratio of a length of a space between two circumferentially adjacent grouting holes to a length of the grouting holes in the circumferential direction is between 0.9 and 1.
In some embodiments of the present application, a ratio of a length of the injection hole in an axial direction to a length of a space between two adjacent injection holes in the axial direction is between 0.7 and 1.
In some embodiments of the present application, a ratio of a depth of the groove to a thickness of the sleeve to the groove is between 0.85 and 0.95.
In some embodiments of the present application, the arrangement rule of the grooves is: the plurality of grooves are arranged in a row at equal intervals along the circumferential direction of the sleeve, a plurality of rows of the grooves are arranged at equal intervals along the axial direction of the sleeve, and the grooves in even rows correspond to the intervals between two circumferentially adjacent grooves in odd rows.
In some embodiments of the present application, the interval between two circumferentially adjacent grooves is twice the interval between two axially adjacent rows of the grooves.
In some embodiments of the present application, the thickness of the sleeve is 2mm, and the depth of the groove is 1.8 mm; two adjacent along circumference the interval between the recess is 6mm, along two adjacent rows of axial the interval between the recess is 3 mm.
In some embodiments of the present application, the recess is a cross recess.
In some embodiments of the present application, the tube and the sleeve are 0.94-0.97 g/cm3Is made of the high-density polyethylene.
The embodiment of the utility model provides a multi-functional underground structure pre-buried pipe compares with prior art, and its beneficial effect lies in:
the utility model provides a pair of multi-functional underground structure pre-buried pipe has data collection, cooling and slip casting function concurrently, and work efficiency is effectively improved to the rational utilization concrete inner space in integrated design to effectively protect optic fibre, be convenient for batch production, transportation and on-the-spot laying.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.
Fig. 1 is a schematic cross-sectional view of a multifunctional underground structure embedded pipe according to an embodiment of the present invention;
fig. 2 is a front view of a multifunctional underground structure embedded pipe according to an embodiment of the present invention;
FIG. 3 is an enlarged view at A in FIG. 2;
FIG. 4 is a schematic diagram of the deployment of a multifunctional underground structure pre-buried pipe;
FIG. 5 is an enlarged view at B in FIG. 4;
in the figure, 01, reinforcing steel bars; 02. deformation joints; 1. a pipe body; 2. an optical fiber; 3. a sleeve; 4. grouting holes; 5. burying a wire groove; 6. a groove; 7. buckling; 8. an injection port; 9. an injection port; 10. a portion of the tube; 100. completely embedding the pipe; 11. an outer sleeve.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "top", "bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
Referring to fig. 1 and 2, a cross-sectional view and a front view of a multifunctional underground structure embedded pipe according to a preferred embodiment of the present invention are shown, respectively, and include a pipe body 1, an optical fiber 2 and a sleeve 3.
Wherein, body 1 is equipped with a plurality of injected hole 4 along circumference and axial. The arrangement rule of the grouting holes 4 is as follows: four grouting holes 4 are provided in a row at equal intervals in the circumferential direction of the pipe body 1, and a plurality of rows of grouting holes 4 are provided at equal intervals in the axial direction of the pipe body 1. Further, referring to fig. 1, the ratio of the interval length X1 between two circumferentially adjacent grouting holes 4 to the length X2 of the grouting holes 4 in the circumferential direction is between 0.9 and 1. Further, referring to fig. 3, the ratio of the length L1 of the grout holes 4 in the axial direction to the length L2 of the space between two axially adjacent grout holes 4 is between 0.6 and 1. In this embodiment, X1 is the same as X2, the ratio of L1 to L2 is 0.88, and the grouting holes 4 are rectangular holes.
Referring to fig. 1, an optical fiber 2 is embedded in a tube body 1. Specifically, the wire embedding groove 5 can be preset when the tube body 1 is processed, and the optical fiber 2 is embedded while the tube is formed during the processing.
The outer wall of body 1 is located to the sleeve pipe 3 cover, and it is equipped with a plurality of recess 6 along circumference and axial. Further, the ratio of the depth of the groove 6 to the thickness of the sleeve 3 is between 0.85 and 0.95. Further, the arrangement rule of the grooves 6 is as follows: a plurality of grooves 6 are provided in a row at equal intervals in the circumferential direction of the sleeve 3, and a plurality of rows of grooves 6 are provided at equal intervals in the axial direction of the sleeve 3, and the grooves 6 of the even-numbered rows correspond to the intervals between two grooves 6 of the odd-numbered rows that are adjacent in the circumferential direction. Further, the interval N1 between two circumferentially adjacent grooves 6 is twice the interval N2 between two axially adjacent rows of grooves 6. Further, the groove 6 is a cross groove. In this embodiment, the thickness of sleeve pipe 3 is 2mm, and the degree of depth of recess 6 is 1.8mm, and the interval between two adjacent recesses 6 along circumference is 6mm, and the interval between two adjacent rows of recesses 6 along the axial is 3mm, and adjacent recess 6 interval is 6mm promptly, is plum blossom shape and arranges.
This application 1In some embodiments, the tube 1 and the sleeve 2 are 0.94-0.97 g/cm3Is made of High Density Polyethylene (HDPE).
Referring to fig. 4, in fig. 4, 01 is a reinforcing bar of an underground structure; 02 is a deformation joint of an underground structure; 8 is an injection port for grouting or water injection; 9 is an injection outlet for stopping slurry or discharging water; 10 is a partial tube body pre-embedded with the optical fiber 2 but not provided with the sleeve 3; 100 is a complete pre-buried tube comprising a tube body 1, an optical fiber 2 and a sleeve 3.
During actual construction, the layout process of the multifunctional underground structure embedded pipe is as follows:
firstly, at the beginning, the beginning and the intermediate connection position (around the deformation joint 02), the embedded pipe needs to be trimmed, leaving 1/4 pipe walls of the partial pipe body 10 containing the optical fiber 2, and the embedded pipe has three main purposes: firstly, an injection opening 8 is conveniently arranged at the position of a pipe orifice of a part of pipe body 10; secondly, the device is convenient to connect with an external monitoring instrument and send or receive optical signals; thirdly, the optical fiber 2 is convenient to be welded at the construction position.
Then, the complete pre-buried pipe 100 is reasonably arranged on the underground structure, and the complete pre-buried pipe 30 can be fixed on the steel bar 01 by using the buckles 7 at intervals, so that the arrangement is completed.
In actual use, when cooling water is injected into the embedded pipe, the cooling water enters from the injection port 8 and flows out from the injection port 9. When the hydration heat of the concrete is reduced by injecting cooling water into the embedded pipe, the embedded pipe is in a closed state due to the fact that the pressure of the cooling water is low and the periphery of the pipe wall is filled with the concrete.
When the slurry is injected into the embedded pipe, the injection port 9 is blocked, and then the slurry is injected from the injection port 8. When grout is injected into the embedded pipe to plug concrete microcracks, the grouting pressure is high, if concrete has defects, the cross groove at the position can be broken and opened under the action of the grouting pressure, and then the grout can smoothly enter the defects through the broken cross groove to plug the concrete cracks.
Further, referring to fig. 5, in order to avoid the water (slurry) leakage at the two ends of the initial portion, a section of outer sleeve 11 may be installed at the inlet and outlet.
To sum up, the utility model provides a multi-functional underground structure pre-buried pipe, its beneficial effect includes:
the integrated design is adopted, so that the device has multiple purposes and high working efficiency. The concrete structure pre-buried pipe has the functions of data acquisition, cooling and grouting, and can be used for tunnel and underground engineering construction and monitoring. Specifically, the distributed optical fibers are distributed by embedding a multifunctional grouting pipe in the underground structure, so that dynamic construction monitoring and structural stress and strain monitoring in the use stage are realized, various data of each stage are collected, and the construction safety is ensured; cooling water is introduced into the embedded pipe to cool the concrete, so that the hydration heat is reduced, and the pouring quality of the concrete is improved; and slurry is introduced into the embedded pipe to block cracks, so that the compactness of concrete is improved, and water leakage diseases in the use stage are reduced. Engineering technicians need to comprehensively consider underground engineering construction, monitoring, maintenance and reinforcement, and carry out integrated design on the arrangement of the embedded pipes, so that various kinds of cross repeated operation are avoided to a certain extent, and the internal space of the concrete is reasonably utilized besides the improvement of the working efficiency.
And secondly, batch production and quality guarantee of factories can be realized. Generally, the optical fiber, the cooling pipe and the grouting pipe need to be arranged on site, external interference factors are many, various joints are inevitable, and the quality is difficult to ensure. And to multi-functional buried pipe, the mill processes the back of accomplishing, can directly transport to the building site and lay the installation, effectively control product quality and installation effectiveness.
And thirdly, the optical fiber is effectively protected, and the durability is good. The optical fiber can be embedded in the tube at one time, the number of joints is small, and abrasion and breakage are not easy to occur. In addition, the embedded pipe is made of high-density polyethylene (HDPE), and the high-density polyethylene (HDPE) material has good corrosion resistance, has a protection effect on the optical fiber, and can be prevented from being influenced by external complex environmental factors.
Fourthly, the molding is easy, and the field installation is convenient. The characteristics that High Density Polyethylene (HDPE) pipe and optic fibre are easily crooked and easy butt fusion make the connection between the pre-buried intertube convenient, reliable to accessible buckle ligature is hugged closely and is fixed on the reinforcing bar, and the field installation is very convenient.
Fifthly, the weight is light, and the device is economical and practical. Different from the traditional cooling pipe and the grouting pipe, the embedded pipe is made of a heat-conducting high-density polyethylene (HDPE) material, is light in weight and low in price, can be packaged in a bundle, and is convenient to transport and install.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be considered as the protection scope of the present invention.
Claims (10)
1. A multifunctional underground structure pre-buried pipe, comprising:
the pipe body is provided with a plurality of grouting holes along the circumferential direction and the axial direction;
an optical fiber embedded in the tube body;
the sleeve pipe is sleeved on the outer wall of the pipe body and is provided with a plurality of grooves along the circumferential direction and the axial direction.
2. The multifunctional buried structural pipe of claim 1, wherein the arrangement rule of the grouting holes is as follows: four grouting holes are arranged in a row at equal intervals along the circumferential direction of the pipe body, and a plurality of rows of grouting holes are arranged at equal intervals along the axial direction of the pipe body.
3. The multifunctional buried structural pipe of claim 2, wherein the ratio of the length of the interval between two circumferentially adjacent grouting holes to the length of the grouting hole in the circumferential direction is between 0.9 and 1.
4. The multifunctional buried structural pipe of claim 2, wherein the ratio of the length of said grout holes in the axial direction to the length of the interval between two axially adjacent grout holes is 0.7-1.
5. The multifunctional buried structural pipe of claim 1, wherein the ratio of the depth of the groove to the thickness of the casing pipe is between 0.85 and 0.95.
6. The multifunctional buried structure pipe of claim 5, wherein the grooves are arranged according to the following rule: the plurality of grooves are arranged in a row at equal intervals along the circumferential direction of the sleeve, a plurality of rows of the grooves are arranged at equal intervals along the axial direction of the sleeve, and the grooves in even rows correspond to the intervals between two circumferentially adjacent grooves in odd rows.
7. The multifunctional buried structural pipe of claim 6, wherein a spacing between two circumferentially adjacent grooves is twice a spacing between two axially adjacent rows of the grooves.
8. The multifunctional buried structural pipe of claim 7, wherein the thickness of the sleeve is 2mm, and the depth of the groove is 1.8 mm; two adjacent along circumference the interval between the recess is 6mm, along two adjacent rows of axial the interval between the recess is 3 mm.
9. A multifunctional buried structural pipe of any one of claims 5 to 8, wherein said recess is a cross recess.
10. The multifunctional buried pipe of claim 1, wherein the pipe body and the sleeve are 0.94-0.97 g/cm3Is made of the high-density polyethylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022859020.8U CN214033717U (en) | 2020-12-02 | 2020-12-02 | Multifunctional underground structure embedded pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022859020.8U CN214033717U (en) | 2020-12-02 | 2020-12-02 | Multifunctional underground structure embedded pipe |
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| Publication Number | Publication Date |
|---|---|
| CN214033717U true CN214033717U (en) | 2021-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022859020.8U Active CN214033717U (en) | 2020-12-02 | 2020-12-02 | Multifunctional underground structure embedded pipe |
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| CN (1) | CN214033717U (en) |
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