CN111810238A - Annular supporting device for mounting oil and gas pipeline in shield tunnel - Google Patents
Annular supporting device for mounting oil and gas pipeline in shield tunnel Download PDFInfo
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- CN111810238A CN111810238A CN202010898725.2A CN202010898725A CN111810238A CN 111810238 A CN111810238 A CN 111810238A CN 202010898725 A CN202010898725 A CN 202010898725A CN 111810238 A CN111810238 A CN 111810238A
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 51
- 239000010959 steel Substances 0.000 claims abstract description 51
- 238000009434 installation Methods 0.000 claims description 9
- 238000003466 welding Methods 0.000 claims description 5
- 238000006073 displacement reaction Methods 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 20
- 238000005452 bending Methods 0.000 description 11
- 238000004364 calculation method Methods 0.000 description 10
- 238000013461 design Methods 0.000 description 10
- 238000010008 shearing Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/02—Suspension devices for tubes or the like, e.g. for ventilating ducts
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Abstract
The invention discloses an annular supporting device for installing an oil and gas pipeline in a shield tunnel, which comprises annular supports, pipeline supports and sliding supports, wherein the annular supports are arranged on inner wall ring plates of the shield tunnel; the pipeline supports are arranged at the bottom of the inner side of the annular supports, each annular support is provided with at least one pipeline support, and the top of each pipeline support is provided with a steel plate; the sliding support is installed on the steel plate. The invention has the beneficial effects that: through installing annular strutting arrangement in the shield tunnel, guaranteed that all stresses that produce among the oil gas pipeline operation process all transmit to ring carrier department through pipe bracket and sliding support, through ring carrier homodisperse to shield tunnel overall structure in, by the displacement of shield tunnel main part restraint pipeline, the at utmost guarantees that the pipeline does not produce the displacement deformation because of the stress is too big, has ensured oil gas pipeline operation safety.
Description
Technical Field
The invention relates to the technical field of petroleum and natural gas pipeline engineering, in particular to an annular supporting device for mounting an oil and gas pipeline in a shield tunnel.
Background
The shield tunnel is one of the common modes for the non-excavation penetration of the oil and gas pipeline, and after the shield tunnel construction is completed, the oil and gas pipeline needs to be installed in the shield tunnel. Compared with the installation of ground pipelines, the installation space in the shield tunnel is limited, the installation difficulty of pipeline welding, pipeline arrangement and the like is high, and particularly under the special condition that a plurality of pipelines share the shield tunnel, a series of problems of spatial arrangement, stress safety and the like of the pipelines need to be comprehensively coordinated and considered. At present, the tunnel passing length of the oil and gas pipeline shield tunnel is continuously increased, meanwhile, the tunnel passing is required by planning, environmental protection and the like, the tunnel lines are difficult to ensure to pass straight lines, and long-distance small-curvature horizontal curve tunnels are increased day by day. In addition, the installation quantity of the pipelines in the existing oil and gas tunnel is generally 1-3, when a plurality of pipelines are laid in the tunnel in parallel, the pipelines on two sides cannot be directly anchored with a tunnel cushion layer due to the fact that the installation space is small, and the oil and gas pipelines need to be laid in an overhead mode through buttresses.
Traditional concrete buttress only carries out the anchor through atress reinforcing bar and tunnel bed course, and both sides bed course is thinner in the tunnel, and the atress reinforcing bar anchor degree of difficulty is great. Meanwhile, the pipeline stress caused by pressure, temperature and the like in the long-distance curve tunnel is large, the anchoring position of the buttress is extremely easy to damage, the pipeline and the buttress are subjected to displacement deformation, the operation safety of an oil-gas pipeline is influenced, the difficulty of later-period maintenance work is increased, and serious potential safety hazards exist.
Disclosure of Invention
In order to solve the problems, the invention aims to provide an annular supporting device which is stable in structure and easy to install and is used for installing and fixing an oil and gas pipeline in a long-distance shield tunnel.
In order to achieve the purpose, the invention provides an annular supporting device for installing an oil and gas pipeline in a shield tunnel, which comprises:
the annular supports are arranged on inner wall ring pieces of the shield tunnel, the annular supports are arranged in a longitudinal direction of the shield tunnel, and the adjacent annular supports are connected through annular supporting connecting rods;
the pipeline bracket is arranged at the bottom of the inner side of the annular bracket; at least one pipeline bracket is arranged on each annular bracket, and a steel plate is arranged at the top of each pipeline bracket;
and the sliding support is arranged on the steel plate and is used for supporting and installing a pipeline.
As a further improvement of the present invention, the pipeline support includes a horizontal beam, a support steel column, and an inclined strut, the horizontal beam is horizontally disposed in the cross-sectional direction of the annular support, one end of the horizontal beam is fixed on the annular support, the other end of the horizontal beam is connected to one end of the support steel column, the other end of the support steel column is fixed on the annular support and is used for fixedly supporting the horizontal beam, one end of the inclined strut is fixed on the annular support, the other end of the inclined strut is fixed at the connection position of the horizontal beam and the support steel column, and the steel plate is disposed on the horizontal beam.
As a further improvement of the invention, the pipe brackets on adjacent ring brackets are connected through a longitudinal beam.
As a further improvement of the invention, the sliding support comprises a support bottom plate and a pipeline support, the support bottom plate is connected with the steel plate, the pipeline support is arranged above the support bottom plate, and the pipeline is fixedly arranged on the pipeline support.
As a further improvement of the invention, the pipeline support is of an annular structure consisting of an upper semicircle and a lower semicircle, and the upper semicircle and the lower semicircle are connected through a high-strength bolt.
As a further improvement of the invention, the pipeline is fixed on the pipeline bracket through a U-shaped pipe hoop, and the U-shaped pipe hoop is formed by welding steel sheets and is fixed on the pipeline bracket by bolts.
As a further improvement of the invention, the annular support comprises a plurality of splicing sections, and the plurality of splicing sections are connected end to form a finished annular support.
As a further improvement of the invention, adjacent splicing sections of the plurality of splicing sections are connected by a high-strength bolt group.
As a further improvement of the invention, the support base plate is connected with the steel plate through bolts, a plurality of bolt holes are arranged on the support base plate, and sliding bolt holes are arranged on corresponding positions on the steel plate.
As a further improvement of the invention, three pipe supports are arranged at the bottom of the inner side of each annular support, and the three pipe supports comprise one pipe support positioned in the center of the bottom and two pipe supports positioned at two sides of the pipe support positioned in the center, wherein the top surfaces of the two pipe supports positioned at two sides are higher than the top surface of the pipe support positioned in the center.
The invention has the beneficial effects that: through installing annular strutting arrangement in the shield tunnel, guaranteed that all stresses that produce among the oil gas pipeline operation process all transmit to ring carrier department through pipe bracket and sliding support, through ring carrier homodisperse to shield tunnel overall structure in, by the displacement of shield tunnel main part restraint pipeline, the at utmost guarantees that the pipeline is not warp because of the too big displacement that produces of stress, oil gas pipeline operation safety has been guaranteed, when having solved the many pipelines of shield tunnel and laying, the difficult anchor of tradition installation buttress, the condition of pipeline skew easily takes place. And can realize laying many oil gas pipelines in parallel in shield tunnel finite space, space utilization is high.
Drawings
FIG. 1 is a schematic mechanical diagram of an annular bracket and a pipeline bracket of an oil and gas pipeline installation annular support device in a shield tunnel according to an embodiment of the invention;
FIG. 2 is a schematic structural diagram of a longitudinal beam connecting pipeline bracket of an annular support device for installing an oil and gas pipeline in a shield tunnel according to an embodiment of the invention;
FIG. 3 is a schematic view of a connection structure of a support base plate and a steel plate of the annular support device for installing the oil and gas pipeline in the shield tunnel according to the embodiment of the invention;
FIG. 4 is a sectional view of an annular support of the annular support device for installing the oil and gas pipeline in the shield tunnel according to the embodiment of the present invention;
FIG. 5 is a schematic diagram of A in FIG. 4;
FIG. 6 is a schematic structural view of an annular support connecting rod connecting annular bracket of the annular support device for installing the oil and gas pipeline in the shield tunnel according to the embodiment of the invention;
fig. 7 is a schematic pipeline layout diagram of an annular support device for installing an oil and gas pipeline in a shield tunnel according to an embodiment of the present invention.
In the figure, the position of the upper end of the main shaft,
1. an annular support; 2. a pipe support; 3. a horizontal cross beam; 4. supporting a steel column; 5. bracing; 6. a stringer; 7. an annular support link; 8. a high-strength bolt group; 9. a steel plate; 10. a support base plate; 11. a slidable bolt hole; 12. a sliding support; 13. a pipeline support; 14. a pipeline; 15. u type ferrule.
Detailed Description
The present invention will be described in further detail below with reference to specific embodiments and with reference to the attached drawings.
The embodiment of the invention provides an annular supporting device for installing an oil and gas pipeline in a shield tunnel, which comprises the following components: the device comprises an annular bracket 1, a pipeline bracket 2 and a sliding support 12; the annular supports 1 are arranged on inner wall ring pieces of the shield tunnel, the plurality of annular supports 1 are arranged in a longitudinal direction of the shield tunnel, and the adjacent annular supports 1 are connected through annular supporting connecting rods 7; because the annular support 1 and the pipeline support 2 only form a unified whole in the direction of the section of the tunnel, the device can be kept stable in the axial direction of the tunnel, but the annular support 1 is independent along the tunneling direction and cannot keep stable in the longitudinal direction of the tunnel, and therefore the annular support connecting rods 7 are arranged between the annular supports 1 to increase the stability of the device in the longitudinal direction of the tunnel. As shown in fig. 6, all the ring supports 1 in the shield tunnel are connected through ring support connecting rods 7, the ring support connecting rods 7 can be made of section steel, and the ring support connecting rods 7 are uniformly welded on the upper portion and the lower portion of the ring supports 1, so that the plurality of ring supports 1 form a unified whole, and the stress stability of the structure in all directions is ensured. The pipeline bracket 2 is arranged at the bottom of the inner side of the annular bracket 1; at least one pipeline bracket 2 is arranged on each annular bracket 1, and a steel plate 9 is arranged at the top of each pipeline bracket 2; a sliding support 12 is mounted on the steel plate 9, the sliding support 12 being used to support and mount the pipe 14.
The ring-shaped support 1 is a core supporting part of the device, and the supporting force of the pipeline 14, the sliding support 12 and the pipeline support 2 is finally positioned on the ring-shaped support 1 and forms a unified whole with the ring-shaped support 1. Pipeline stress and device dead weight etc. all transmit to ring carrier 1 department, carry out the homodisperse of stress through ring carrier 1, make during stress transmission to the shield tunnel main part, by the deformation displacement of shield tunnel major structure restriction pipeline 14, avoided because the not firm condition that causes the pipeline to take place the displacement deformation of traditional pipeline buttress anchor, ensured the safety of pipeline operation in-process.
In an alternative embodiment, the bottom of the ring support 1 is horizontal, and the gap between the ring support 1 and the inner wall of the shield tunnel is filled by coagulation. Pipeline bracket 2 includes horizontal beam 3, support steel column 4 and bracing 5, the cross-section direction level of 3 ring carrier 1 of horizontal beam sets up, the one end of horizontal beam 3 is fixed on ring carrier 1, the other end of horizontal beam 3 is connected with the one end that supports steel column 4, the other end that supports steel column 4 is fixed on ring carrier 1, be used for fixed stay horizontal beam 3, the one end of bracing 5 is fixed on ring carrier 1, the other end of bracing 5 is fixed in the junction of horizontal beam 3 and support steel column 4, steel sheet 9 sets up on the horizontal beam 3, sliding support 12 installs on steel sheet 9. Horizontal beam 3, support steel column 4, bracing 5 three all connect on ring carrier 1, guarantee to form whole stress structure between pipeline 14, pipeline bracket 2 and the ring carrier 1. In order to increase the stability of the device, the pipeline brackets 2 on the adjacent annular brackets 1 are connected through the longitudinal beam 6, the connection mode that the longitudinal beam 6 is connected with the pipeline brackets 2 is shown in fig. 2, and the longitudinal beam 6 is connected at the intersection of the horizontal cross beam 3, the supporting steel column 4 and the inclined strut 5. The pipe support 2 supporting the same pipe 14 is located in the same position of the ring support 1 to which it is connected.
Further, as the pipeline 14 is subjected to large pipeline stress caused by pressure and temperature, the pipeline bracket 2 needs to be capable of bearing the self weight and the pipeline stress of the pipeline, and the pipeline bracket 2 needs to be subjected to strength, stability and deformation calculation to determine the cross sections of the horizontal cross beam 3, the longitudinal beam 6, the inclined strut 5 and the support steel column 4 in the pipeline bracket 2; the seismic design, the welding connection design, the beam column connection design, the column base connection design and the like of the connection node are considered. The structural design of the pipe bracket 2 includes: according to the method, a three-dimensional structure pipeline support model is established according to the graph shown in fig. 1 and fig. 2, numerical simulation analysis is carried out on the pipeline support 2, the strength, the stability and the deformation of a column and a beam of the pipeline support 2 are respectively calculated based on the pipeline support model, and the section sizes of a horizontal cross beam 3, a longitudinal beam 6, an inclined strut 5 and a supporting steel column 4 of the pipeline support 2 and the connection strength of a connection part are determined according to calculation. Wherein the content of the first and second substances,
the calculation formulas of the strength of the column and the beam of the pipe support bracket 2 are respectively as follows:
the column strength calculation formula is:
the beam strength calculation formula is:
wherein M isx、MyBending moments about the x-axis and y-axis for the same section, Wnx、WnyFor the modulus of the net section of the principal axes x, y, WnIs the modulus of the net section, gammax、γyFor the coefficient of section plasticity development for the principal axes x, y, gammamIs the section plasticity development coefficient, f is the bending strength design value of the steel, N is the axial pressure, AnIs the net cross-sectional area.
Column and beam stability of the pipe rack support 2 includes overall stability and local stability,
the calculation formulas of the overall stability of the column and the beam of the pipe support bracket 2 are respectively as follows:
the overall stability of the column is calculated as:
the overall stability of the beam is calculated by the formula:
wherein the content of the first and second substances,
the overall stability factor of the beam determined for bending about the strong axis,
stability factor of axial compression member, betamxIs equivalent bending moment coefficient, NEX' is a section parameter, Mx、MyBending moments about the x-axis and y-axis for the same section, Wx、WyIs the section modulus, γx、γyThe coefficient of section plasticity development is shown as f, the bending strength design value of the steel is shown as f, N is the axial pressure, and A is the net section area.
The calculation formulas of the local stability of the column and the beam of the pipe support bracket 2 are respectively as follows:
the local stability of the column is calculated as:
100(235/fy)
the local stability of the beam is calculated by the formula:
wherein σ is the bending compressive stress of the web calculated height edge resulting from the average bending moment in the calculated web cell, τ is the average shear force of the web resulting from the average shear force in the calculated web cell, σcσcrτcrσc,crCritical stress under the action of each stress alone, fyThe yield strength of steel.
The calculation formula of the deformation of the column and the beam of the pipe frame support 2 is as follows:
wherein q iskFor uniform load distribution, l is the length of the member, E is the modulus of elasticity, IxIs the member section moment of inertia, and upsilon is the perturbation generated by the member.
In an alternative embodiment, the sliding support 12 comprises a support base plate 10 and a pipe support 13, the support base plate 10 is connected with the steel plate 9, the pipe support 13 is arranged above the support base plate 10, and the pipe 14 is fixedly arranged on the pipe support 13. The steel sheet 9 sets up on pipe bracket 2's horizontal beam 3, as shown in fig. 3, carries out the bolt hole according to pipeline 14's mounted position on the steel sheet 9 and opens the hole, and the bolt hole is slidable bolt hole 11, can carry out the adjustment of sliding of bolt according to actual conditions in the assurance work progress, reduces the pipeline erection construction degree of difficulty. After the connection of the sliding support 12 and the steel plate 9 is anchored by the bolts, the support bottom 10 plate and the steel plate 9 are welded, so that the pipeline 14 is prevented from being separated from the pipeline support 2 due to overlarge stress, and the displacement deformation of the pipeline 14 is avoided.
Further, the pipe support 13 is an annular structure composed of an upper semicircle and a lower semicircle, and the upper semicircle and the lower semicircle are connected through a high-strength bolt.
Further, the pipeline 14 is fixed on the pipeline support 2 through a U-shaped pipe hoop 15, and the U-shaped pipe hoop 15 is formed by welding steel sheets and is fixed on the pipeline support 2 through bolts. After the pipeline 14 is installed in place, the pipeline is fixed on the pipeline support 2 through the U-shaped pipe hoop 15, and a 1-2 rnm installation gap is formed between the pipeline 14 and the U-shaped pipe hoop 15, so that the pipeline 14 can freely stretch and retract, and the whole device is guaranteed to only bear the lateral stress of the pipeline.
In an alternative embodiment, the ring-shaped stent 1 comprises a plurality of splicing sections, and the plurality of splicing sections are connected end to form a finished ring-shaped stent 1. As shown in fig. 5, the ring-shaped support 1 is tightly attached to the inner wall of the shield tunnel, so as to ensure that the load of the pipeline 14 and the pipeline support 2 is transmitted to the main structure of the shield tunnel through the ring-shaped support 1. The inner wall of the shield tunnel is not required to be provided with an embedded steel plate, the annular support 1 is not welded with the inner wall of the tunnel, the influence on the inner wall of the tunnel is reduced to the greatest extent, and the safety of a main body structure is guaranteed. As shown in fig. 4, a is a suggested splice location and B is a connecting beam location.
Furthermore, adjacent splicing sections of the multiple splicing sections are connected through the high-strength bolt group 8, the design size of the annular support 1 is slightly smaller than the actual inner diameter of the tunnel, and actual splicing is carried out on site after factory prefabrication production. Through adjusting the interval of the high-strength bolt group 8 at the splicing part, the annular support 1 can be just tightly propped against the inner wall of the tunnel and is perfectly attached to the tunnel. Meanwhile, the high-strength bolt group 8 can play a role in bearing shearing force of the annular support, and stability of the whole device is guaranteed. The stress of the bolts at the corner points of the high-strength bolt group 8 meets the requirement of the shearing resistance and the control condition, and the types of the bolts and the arrangement scheme of the bolt group can be determined through calculation. The calculation formula of the shearing force borne by the angular point bolt is as follows:
wherein the content of the first and second substances,
subjecting the bolt to shear forces for the angular point in the y-direction, i.e.
Angular point bolt caused by y-axis bending momentSubject to shear forces, i.e.
For corner bolts induced by bending moments in the x-direction, i.e. subjected to shearing forces
MxV is respectively a bending moment and a shear force design value at the beam splicing position; m and n are respectively the number of rows and columns of the bolt; e is the eccentricity from the splicing seam to the center of the bolt group; i isxj、IwjThe net section inertia distances of the beam and the beam web around the x axis are respectively;
the design value is the shearing resistance bearing capacity of the bolt.
In an alternative embodiment, three pipe supports 2 are arranged at the bottom of the inner side of each ring-shaped support 1, and the pipe supports 2 comprise one pipe support 2 positioned in the center of the bottom and two pipe supports 2 positioned at two sides of the pipe support positioned in the center, wherein the top surfaces of the two pipe supports 2 positioned at two sides are higher than the top surface of the pipe support 2 positioned in the center. As shown in fig. 7, the pipes on both sides are supported by the pipe support 2 composed of the horizontal beam 3, the support steel column 4 and the inclined strut 5, the pipe in the middle is directly installed at the bottom of the ring support 1 through the sliding support 12, and the bottom of the ring support 1 is horizontally arranged.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides an oil gas pipeline installation annular strutting arrangement in shield tunnel which characterized in that, the device includes:
the shield tunnel comprises annular supports (1) which are arranged on inner wall ring pieces of the shield tunnel, wherein the annular supports (1) are arranged in a row along the longitudinal direction of the shield tunnel, and the adjacent annular supports (1) are connected through annular supporting connecting rods (7);
the pipeline bracket (2) is arranged at the bottom of the inner side of the annular bracket (1); at least one pipeline bracket (2) is arranged on each annular bracket (1), and a steel plate (9) is arranged at the top of each pipeline bracket (2);
a sliding support (12) mounted on the steel plate (9), the sliding support (12) being used for supporting and mounting a pipeline (14).
2. The annular support device for installing the oil and gas pipeline in the shield tunnel according to claim 1, wherein the pipeline support (2) comprises a horizontal beam (3), a support steel column (4) and an inclined strut (5), the horizontal beam (1) is horizontally arranged along the cross section direction of the annular support (1), one end of the horizontal beam (1) is fixed on the annular support (1), the other end of the horizontal beam (3) is connected with one end of the support steel column (4), the other end of the support steel column (4) is fixed on the annular support (1) and is used for fixedly supporting the horizontal beam (3), one end of the inclined strut (5) is fixed on the annular support (1), and the other end of the inclined strut (1) is fixed at the connection position of the horizontal beam (3) and the support steel column (4), the steel plate (9) is arranged on the horizontal cross beam (3).
3. The annular support device for installing oil and gas pipelines in a shield tunnel according to claim 2, characterized in that the pipeline brackets (2) on adjacent annular brackets (1) are connected through longitudinal beams (6).
4. The annular support device for installing the oil and gas pipeline in the shield tunnel according to claim 1, wherein the sliding support (12) comprises a support bottom plate (10) and a pipeline support (13), the support bottom plate (10) is connected with the steel plate (9), the pipeline support (13) is arranged above the support bottom plate (10), and the pipeline (14) is fixedly installed on the pipeline support (13).
5. The annular supporting device for installing the oil and gas pipeline in the shield tunnel according to claim 4, wherein the pipeline support (13) is an annular structure consisting of an upper half circle and a lower half circle, and the upper half circle and the lower half circle are connected through a high-strength bolt.
6. The annular support device for mounting the oil and gas pipeline in the shield tunnel according to claim 1, wherein the pipeline (14) is fixed on the pipeline support (2) through a U-shaped pipe hoop (15), and the U-shaped pipe hoop (15) is formed by welding steel sheets and is fixed on the pipeline support (2) through bolts.
7. The annular support device for installing the oil and gas pipeline in the shield tunnel according to claim 4, wherein the annular support (1) comprises a plurality of splicing sections, and the splicing sections are connected end to form a finished annular support.
8. The annular support device for installing the oil and gas pipeline in the shield tunnel according to claim 7, wherein adjacent splicing sections of the splicing sections are connected through a high-strength bolt group (8).
9. The annular support device for installing the oil and gas pipeline in the shield tunnel according to claim 4, wherein the support base plate (10) is connected with the steel plate (9) through bolts, a plurality of bolt holes are formed in the support base plate (10), and sliding bolt holes (11) are formed in corresponding positions on the steel plate (9).
10. The annular support device for installing the oil and gas pipeline in the shield tunnel according to claim 1, wherein three pipeline supports (2) are arranged at the bottom of the inner side of each annular support (1), and comprises one pipeline support positioned in the center of the bottom and two pipeline supports positioned at two sides of the central pipeline support, wherein the top surfaces of the two pipeline supports at two sides are higher than the top surface of the pipeline support at the center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010898725.2A CN111810238B (en) | 2020-08-31 | 2020-08-31 | Annular supporting device for mounting oil and gas pipeline in shield tunnel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010898725.2A CN111810238B (en) | 2020-08-31 | 2020-08-31 | Annular supporting device for mounting oil and gas pipeline in shield tunnel |
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| Publication Number | Publication Date |
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| CN111810238A true CN111810238A (en) | 2020-10-23 |
| CN111810238B CN111810238B (en) | 2022-04-05 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204113295U (en) * | 2014-07-30 | 2015-01-21 | 广州电力设计院 | A kind of municipal shield tunnel |
| CN108915768A (en) * | 2018-08-28 | 2018-11-30 | 北京城建设计发展集团股份有限公司 | Heat distribution pipeline fixing force transfer bracket system in heating power shield tunnel |
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2020
- 2020-08-31 CN CN202010898725.2A patent/CN111810238B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204113295U (en) * | 2014-07-30 | 2015-01-21 | 广州电力设计院 | A kind of municipal shield tunnel |
| CN108915768A (en) * | 2018-08-28 | 2018-11-30 | 北京城建设计发展集团股份有限公司 | Heat distribution pipeline fixing force transfer bracket system in heating power shield tunnel |
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| CN111810238B (en) | 2022-04-05 |
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