CN109898414B - Suspension cable pipeline bridge tunnel type anchorage main cable anchoring system - Google Patents
Suspension cable pipeline bridge tunnel type anchorage main cable anchoring system Download PDFInfo
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- CN109898414B CN109898414B CN201910201699.0A CN201910201699A CN109898414B CN 109898414 B CN109898414 B CN 109898414B CN 201910201699 A CN201910201699 A CN 201910201699A CN 109898414 B CN109898414 B CN 109898414B
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- 238000004873 anchoring Methods 0.000 title claims abstract description 55
- 239000000725 suspension Substances 0.000 title claims abstract description 22
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 63
- 239000010959 steel Substances 0.000 claims abstract description 63
- 239000011435 rock Substances 0.000 claims abstract description 23
- 230000009471 action Effects 0.000 claims abstract description 5
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 13
- 230000008859 change Effects 0.000 claims description 9
- 238000012360 testing method Methods 0.000 claims description 8
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 238000010276 construction Methods 0.000 claims description 3
- 238000009412 basement excavation Methods 0.000 abstract description 2
- 238000011161 development Methods 0.000 abstract description 2
- 230000005484 gravity Effects 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 238000012876 topography Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 208000010392 Bone Fractures Diseases 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 206010017076 Fracture Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000037396 body weight Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention relates to a suspension cable pipeline bridge tunnel type anchorage main cable anchoring system, which comprises: the outer side of the head part of the anchor plug body is provided with a main cable anchor seat, and the outer side of the tail part of the anchor plug body is provided with an integral anchor plate; the anchor plug body is internally provided with a plurality of prestress steel strands, one ends of the prestress steel strands are anchored on the main cable anchoring seat, and the other ends of the prestress steel strands are anchored on the integral anchor plate; and under the action of the pre-stress anchor cable, the surrounding rock at the rear part of the anchor site area and the anchor plug body are connected into a whole to participate in stress together, so that the tension of an external main cable is resisted. According to the invention, the surrounding rock and the anchor plug body in the anchor site area are connected into a whole through the prestressed anchor cable and the prestressed steel strand, and the surrounding rock and the anchor plug body participate in stress together, so that the purposes of improving the safety coefficient of the tunnel anchor and reducing the excavation size of the anchor plug body under the conditions of poor geological conditions, low strength of the surrounding rock and development of structural fissures are achieved.
Description
Technical Field
The invention relates to a suspension cable pipeline bridge tunnel type anchorage main cable anchoring system, and belongs to the field of oil and gas pipeline crossing engineering design.
Background
The suspension cable type crossing is one of the common methods for crossing obstacles such as rivers, lakes, canyons and the like by using the oil and gas long-distance transmission pipeline, and is the first choice and the most main type of long-distance and large-span crossing. As four main structures of suspension cable crossing, the anchorage is a key component for anchoring a main cable and transmitting huge tensile force to a foundation, and is mainly divided into a self-anchored type and a ground anchored type, and all built oil-gas pipeline suspension bridges adopt the ground anchored type anchorage. According to the difference of the connection modes of the anchor body and the foundation, the ground anchor type anchorage is divided into a gravity type anchorage and a tunnel type anchorage, a foundation pit is excavated, a large volume of concrete is poured to form the anchorage, and the main cable tension is resisted by self gravity, so that the body weight is large, the manufacturing cost is high, and the disturbance of the large volume of foundation pit to the surrounding environment is large; the tunnel type anchorage is characterized in that a tunnel hole is formed by heavy-opening of a rock mass, concrete is poured in the tunnel and the combined action of surrounding rock is carried out to form an anchor plug body, so that the anchor plug body bears the tension of a main cable, and compared with the gravity type anchorage, the anchor plug body has the mass of only 20% -25% of that of a gravity anchor and has small influence on the surrounding environment. The tunnel anchor requires less rock mass joints and good integrity, and in some rock masses with poor geological conditions, lower surrounding rock strength and developed structural fissures, the conventional tunnel anchor main cable mode at present cannot meet the design requirement.
Disclosure of Invention
In order to solve the problems, the invention aims to provide a tunnel type anchorage main cable anchoring system of a suspension cable pipeline bridge, which realizes the main cable anchoring of a pipeline suspension cable crossing structure by arranging a prestressed anchor cable, an integral anchor plate, a prestressed steel strand, a positioning anchor plate and a main cable anchoring seat, improves the safety coefficient of the tunnel type anchorage and reduces the disturbance of the surrounding environment of an anchor site area, and provides a new mode for solving the problems of the safety and the main cable anchoring of the tunnel type anchorage of the pipeline crossing structure under the conditions of complex geology and limited topography.
The invention aims at realizing the following technical scheme:
a suspension cable pipeline bridge tunnel anchorage main cable anchoring system, comprising:
An external main cable, one end of which is anchored on the main tower, and the other end of which is anchored on a main cable anchoring seat at the head part of the anchor plug body;
the anchor plug body is positioned in the surrounding rock of the anchor site area, a main cable anchor seat is arranged on the outer side of the head part of the anchor plug body, and an integral anchor plate is arranged on the outer side of the tail part of the anchor plug body; the anchor plug body is internally provided with a plurality of prestress steel strands, the prestress steel strands are all arranged in parallel with the central axis of the anchor plug body, one end of each prestress steel strand is anchored on the main cable anchoring seat, and the other end of each prestress steel strand is anchored on the integral anchor plate;
And under the action of the pre-stress anchor cable, the surrounding rock of the anchor site area and the anchor plug body are connected into a whole to participate in stress together, so that the tension of the external main cable is resisted.
Furthermore, the inclination angle between the anchor plug body and the horizontal plane is the same as the included angle between the external main cable and the horizontal plane.
Further, the anchor plug body consists of a straight line section and a gradual change section, wherein the cross section of the straight line section is in a long shape, the cross section of the gradual change section is in an isosceles trapezoid shape, the short side of one side of the long shape is the head of the anchor plug body, the short side of the other side of the long shape is connected with the upper bottom of the isosceles trapezoid, and the lower bottom of the isosceles trapezoid is the tail of the anchor plug body; the section of the anchor plug body is horseshoe-shaped.
Furthermore, in the anchor plug body, two ends of the prestress steel strand are respectively provided with a reinforcing steel mesh for local bearing.
Furthermore, a positioning anchor plate is arranged below the main cable anchoring seat and used for integrally positioning the prestress steel strand, so that the accuracy of the anchoring position of the prestress steel strand is ensured.
Further, after the installation of the positioning anchor plate, the reinforcing mesh, the prestressed steel strands and the integral anchor plate is completed, the inside of the anchor plug body is filled with C30 concrete.
Further, through holes required by the prestressed steel strands are formed in the integral anchor plate, the prestressed steel strand through holes in the integral anchor plate correspond to the prestressed steel strand through holes in the positioning anchor plate one by one, the prestressed steel strand through holes in the integral anchor plate are symmetrically distributed on two sides of the integral anchor plate, and openings for installing prestressed anchor cables are formed in the middle of the integral anchor plate.
Furthermore, when the whole anchor plate is used for connecting the prestressed steel strand and the prestressed anchor cable, a test cable is arranged, and after the test cable is detected to reach 1.5 times of the designed anchoring force by the anchoring force, the construction of the prestressed anchor cable is performed.
Further, the method comprises the steps of,
The end part of the external main cable adopts a double-screw type adjusting anchorage device;
the main cable anchoring seat comprises a horizontal plate and 4 vertical plates which are arranged in parallel, wherein the vertical plates are arranged perpendicular to the horizontal plate, the vertical plates and the horizontal plate are integrally formed, and stiffening plates are arranged between the horizontal plate and the vertical plate and between the vertical plate and the vertical plate; through holes required by the prestressed steel strands are symmetrically formed in two sides of the horizontal plate, and the prestressed steel strand through holes in the horizontal plate correspond to the prestressed steel strand through holes in the positioning anchor plate one by one; holes for the pin shaft to pass through are respectively formed in the 4 vertical plates, and the screw rods at the end parts of the external main cables are fixed on the main cable anchoring seats through pin shafts.
Further, the horizontal plates of the positioning anchor plate, the integral anchor plate and the main cable anchor seat are all perpendicular to the section of the anchor plug body.
The beneficial effects of the invention are as follows:
According to the invention, the main cable anchoring of the pipeline suspension cable crossing structure is realized by arranging the prestressed anchor cable, the integral anchor plate, the prestressed steel stranded wire, the positioning anchor plate and the main cable anchoring seat, the purposes of improving the safety coefficient of the tunnel type anchorage and reducing the disturbance of the surrounding environment of an anchorage location area are achieved, and a novel mode is provided for solving the problem of anchoring the main cable of the tunnel type anchorage of the pipeline crossing structure under the conditions of complex geology and limited topography.
Meanwhile, when the anchor site area is limited by rock body topography conditions of poor geological conditions, lower surrounding rock strength and structural fracture development, the anchor plug body and the surrounding rock of the anchor site area participate in stress together, so that the safety coefficient of tunnel type anchorage is greatly improved, the tunnel excavation size is effectively reduced, and the disturbance of the surrounding environment of the anchor site area is reduced.
Drawings
FIG. 1 is a schematic cross-sectional view of a tunnel type anchorage main cable anchoring system of a suspension cable pipeline bridge;
Fig. 2 is a schematic diagram of the whole structure of the tunnel type anchorage main cable anchoring system of the suspension cable pipeline bridge;
FIG. 3 is a schematic view of an end structure of an external main cable according to an embodiment of the present invention;
FIG. 4 is a schematic view of the main cable anchor structure according to the present invention;
FIG. 5 is a schematic view of the overall anchor plate structure according to an embodiment of the present invention;
the two-screw adjusting anchor comprises a 1-double-screw adjusting anchor, a 2-main cable anchor seat, a 3-positioning anchor plate, a 4-reinforcing steel bar net piece, a 5-anchor plug straight line segment, a 6-prestress steel strand, a 7-pin shaft, an 8-anchor plug gradual change segment, a 9-test cable, a 10-prestress anchor cable, an 11-integral anchor plate, 12-C30 concrete, a 13-external main cable, a 14-main tower, 15-anchor site area surrounding rock, a 16-double-screw hot-cast anchor cup, 17-zinc-copper alloy, 18-sealing materials, 19-prestress steel strand through holes, 20-prestress anchor cable openings and 33-screws.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Referring to fig. 1-2, a suspension cable pipeline bridge tunnel type anchorage main cable anchoring system comprises:
An outer main cable 13, one end of which is anchored to the main tower 14, and the other end of which is anchored to the anchor site area surrounding rock 15 by inserting the main cable anchor seat 2 through a screw 33 at the end of the outer main cable 13. The end part of the outer main cable 13 connected with the main cable anchoring seat 2 adopts a double-screw type adjusting anchorage at the end part of the outer main cable 13, as shown in fig. 3.
The anchor plug body is positioned in the surrounding rock 15 of the anchor site area, the outer side of the head part of the anchor plug body is provided with a main cable anchor seat 2, and the outer side of the tail part of the anchor plug body is provided with an integral anchor plate 11; the anchor plug body is internally provided with a plurality of prestressed steel strands 6, the prestressed steel strands 6 are all arranged in parallel with the central axis of the anchor plug body, one end of each prestressed steel strand 6 is anchored on the main cable anchoring seat 2, and the other end of each prestressed steel strand 6 is anchored on the integral anchor plate 11. The connection and force transmission of the prestressed steel stranded wires 6 are used for realizing the connection of the main cable anchor seat 2 and the whole anchor plug body and transmitting the external main cable tension to the whole anchor plug body.
The anchor plug body is composed of a straight line section 5 and a gradual change section 8, wherein the cross section of the straight line section 5 is in a long shape, the cross section of the gradual change section 8 is in an isosceles trapezoid shape, one short side of the long shape is the head of the anchor plug body, the other short side of the long shape is connected with the upper bottom of the isosceles trapezoid, and the lower bottom of the isosceles trapezoid is the tail of the anchor plug body. The design of the gradual change section can strengthen the pulling resistance of the anchor plug body and strengthen the anchor plug effect.
As shown in fig. 4, the main cable anchoring seat 2 comprises a horizontal plate and 4 vertical plates which are arranged in parallel, wherein the vertical plates are arranged perpendicular to the horizontal plate, the vertical plates and the horizontal plate are integrally formed, and stiffening plates are arranged between the horizontal plate and the vertical plate and between the vertical plate and the vertical plate; the horizontal plate is provided with through holes required by the prestress steel strands 6, and the prestress steel strand through holes on the horizontal plate correspond to the prestress steel strand through holes on the positioning anchor plate 3 one by one; holes for the pin shaft to pass through are respectively formed in the 4 vertical plates, and the screw 1 at the end part of the external main cable 13 is fixed on the main cable anchoring seat 2 through the pin shaft 7.
And one end of the prestressed anchor cable 10 is anchored to the surrounding rock at the rear part of the anchor site area, and the other end of the prestressed anchor cable is anchored to the integral anchor plate 11, and under the action of the prestressed anchor cable 10, the surrounding rock at the rear part of the anchor site area and the anchor plug body are connected into a whole to participate in stress together so as to resist the tensile force of the external main cable 13.
The inclination angle of the whole anchor plug body and the horizontal plane is the same as the included angle of the outer main cable 13 and the horizontal plane, and is an arctangent function of the sagittal ratio of the outer main cable 13.
Preferably, in the anchor plug body, two ends of the prestressed steel strand 6 are respectively provided with a reinforcing mesh 4 for local bearing.
The positioning anchor plate 3 is arranged below the main cable anchoring seat 2 and used for integrally positioning the prestress steel strand 6, so that the accuracy of the anchoring position of the prestress steel strand 6 is ensured.
Further, after the installation of the positioning anchor plate 3, the reinforcing mesh 4, the prestressed steel strands 6 and the integral anchor plate 11 is completed, the inside of the anchor plug body is filled with C30 concrete 12.
Further, as shown in fig. 5, through holes required by the prestressed steel strands 6 are formed in the integral anchor plate 11, and the prestressed steel strand through holes in the integral anchor plate 11 are in one-to-one correspondence with the prestressed steel strand through holes in the positioning anchor plate 3. The integral anchor plate 11 is also provided with an opening for installing the prestressed anchor cable 10.
When the prestress steel strand 6 and the prestress anchor cable 10 are connected through the integral anchor plate 11, a test cable 9 is arranged, and after the test cable 9 is detected to reach 1.5 times of the designed anchoring force through the anchoring force, the construction of the prestress anchor cable 10 is carried out.
Examples
The invention is applied to a suspension cable pipeline bridge with a main span length of 355m and a main cable sagittal span ratio of 1/10, and is used for transporting a gas pipeline with a diameter phi 1016mm and a D150mm water pipeline. The suspension cable pipeline bridge comprises 2 groups of main cables, wherein the distance between each group of main cables is 3m; each set of main cables consists of 2 PES5 x 265 twin-screw main cables, each main cable having a pitch of 550mm. The main cable of the east shore of the pipeline bridge adopts a gravity type anchoring pier, the slope at the anchoring position of the main cable of the west shore is steeper, the length of a tunnel anchoring section is 35m, the cross section of the front end of the tunnel is 7.8x6m, the cross section of the bottom is 7.8x9.1m, the width of the cross section is 7.5m, the diameter of an upper arch is 7.8m, the height of a straight line section is 6m, and the bottom height of a gradual change section is 9.1m. And (3) arranging prestressed rock at the rear side of the tunnel anchor, and arranging 8 bundles of prestressed anchor cables, wherein the types of the anchor cables are CPS15-24.
The prestressed steel strands in the tunnel anchors are anchored on the anchor surface of the gradient section of the anchor plug body through the integral anchor plates, each anchor plate is 1400mm long and 2230mm wide, four integral anchor plates are designed in total according to an application example, through holes required by the prestressed steel strands are respectively arranged on two sides of each integral anchor plate, the through holes correspond to the holes of the positioning anchor plates one by one, and 2 prestressed anchor cables are installed on each integral anchor plate. The first layers of HRB400 phi 16mm reinforcing steel meshes are respectively arranged 100mm above the integral anchor plate, the first layers of reinforcing steel meshes are 100mm away from the integral anchor plate, the spacing between each two layers of reinforcing steel meshes is 80mm, the spacing between reinforcing steel meshes is 100 multiplied by 100mm, and 20 layers of reinforcing steel meshes are provided.
The application example designs 8 prestressed anchor cables in total, wherein the prestressed anchor cables adopt CPS15-24 type low-relaxation epoxy spraying unbonded steel strands, and are protected by adopting corrugated pipes and epoxy resin. The pre-stressed anchor cable should be tested before being excavated to the bottom of the hole, namely, the anchor cable test cable is firstly installed, then the anchoring force is detected, and the pre-stressed anchor cable can be constructed after reaching more than 1.5 times of the pre-determined anchoring force.
On the contact surface of the front part of the straight line section of the anchor plug body, the double-screw adjusting anchor device at the end part of the external main cable is anchored on the main cable anchoring seat, and four main cables are used in the application example, namely four main cable anchoring seats. The length 2130mm and the width 1360mm of the bottom of the anchor seat of each main cable are respectively provided with through holes required by the prestress steel strands at two sides of the bottom of each anchor seat, and each main cable is provided with 16 phi 15.2mm multiplied by 4 prestress steel strands. The positioning anchor plate and the HRB400 phi 16mm reinforcing steel bar meshes are sequentially arranged below the main cable anchor seat, the distance between the first reinforcing steel bar meshes and the positioning anchor plate is 100mm, the spacing between the reinforcing steel bar meshes is 80mm, the spacing between the reinforcing steel bars is 100 multiplied by 100mm, and 20 reinforcing steel bar meshes are arranged in total. After the anchor plate, the reinforcing mesh, the prestressed steel strand, the reinforcing mesh and the integral anchor plate are installed, the straight line section and the transition section of the anchor plug body are filled with C30 concrete.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A suspension cable pipeline bridge tunnel type anchorage main cable anchoring system, which is characterized by comprising:
An external main cable (13) with one end anchored on the main tower (14) and the other end anchored on the main cable anchor seat (2) at the head of the anchor plug body; the end part of the external main cable (13) adopts a double-screw type adjusting anchorage device (1); the main cable anchoring seat (2) comprises a horizontal plate and a plurality of vertical plates, the vertical plates are perpendicular to the horizontal plate, and stiffening plates are arranged between the horizontal plate and the vertical plates and between the vertical plates; the horizontal plate is provided with through holes for the prestress steel strands (6), the vertical plates are respectively provided with holes for the pin shafts to pass through, and the screw rods (33) at the end parts of the external main cables (13) are fixed on the main cable anchoring seats (2) through pin shafts (7); a positioning anchor plate (3) is arranged below the main cable anchoring seat (2) and is used for integrally positioning the prestress steel strand (6) to ensure the accuracy of the anchoring position of the prestress steel strand (6);
the anchor plug body is positioned in the surrounding rock (15) of the anchor site area, the outer side of the head part of the anchor plug body is provided with a main cable anchor seat (2), and the outer side of the tail part of the anchor plug body is provided with an integral anchor plate (11); the anchor plug body is internally provided with a plurality of prestressed steel strands (6), the prestressed steel strands (6) are arranged in parallel with the central axis of the anchor plug body, one end of each prestressed steel strand (6) is anchored on the main cable anchoring seat (2), and the other end of each prestressed steel strand (6) is anchored on the integral anchor plate (11); the integral anchor plate (11) is provided with through holes required by the prestressed steel strands (6), the prestressed steel strand through holes on the integral anchor plate (11) are in one-to-one correspondence with the prestressed steel strand through holes on the positioning anchor plate (3), and the prestressed steel strand through holes on the integral anchor plate (11) are symmetrically distributed on two sides of the integral anchor plate (11); the anchor plug body consists of a straight line section (5) and a gradual change section (8), wherein the cross section of the straight line section (5) is in a long strip shape, the cross section of the gradual change section (8) is in an isosceles trapezoid shape, the short side of one side of the long strip shape is the head of the anchor plug body, the short side of the other side of the long strip shape is connected with the upper bottom of the isosceles trapezoid, and the lower bottom of the isosceles trapezoid is the tail of the anchor plug body; inside the anchor plug body, two ends of the prestress steel strand (6) are respectively provided with a reinforcing steel mesh (4) for local bearing;
The prestressed anchor cable (10) is anchored at one end of the prestressed anchor cable to the surrounding rock at the rear part of the anchor site area, the other end of the prestressed anchor cable is anchored on the integral anchor plate (11), and an opening for installing the prestressed anchor cable (10) is arranged in the middle of the integral anchor plate (11); under the action of the pre-stress anchor cable (10), the surrounding rock of the anchor site area and the anchor plug body are connected into a whole to participate in stress together, so as to resist the tensile force of the external main cable (13);
After the anchor plate (3), the reinforcing mesh (4), the prestressed steel strands (6) and the integral anchor plate (11) are installed, the inside of the anchor plug body is filled with C30 concrete (12).
2. The anchoring system of a tunnel-type anchorage main cable of a suspension cable pipe bridge according to claim 1, wherein the inclination angle of the anchor plug body with respect to the horizontal plane is the same as the angle of the outer main cable (13) with respect to the horizontal plane.
3. The suspension pipeline bridge tunnel type anchorage main cable anchoring system according to claim 2, wherein the section of the anchor plug body is horseshoe-shaped.
4. The main cable anchoring system of the suspension cable pipeline bridge tunnel type anchorage according to claim 1, wherein when the prestressed steel stranded wires (6) and the prestressed anchor cables (10) are connected through the integral anchor plate (11), a test cable (9) is arranged, and after the test cable (9) is detected to reach 1.5 times of the designed anchoring force through the anchoring force, the construction of the prestressed anchor cables (10) is carried out.
5. The suspension pipeline bridge tunnel type anchorage main cable anchoring system according to claim 1, wherein,
The main cable anchoring seat (2) comprises a horizontal plate and 4 vertical plates which are arranged in parallel, and the vertical plates and the horizontal plates are integrally formed; the two sides of the horizontal plate are symmetrically provided with through holes required by the prestressed steel strands (6), and the prestressed steel strand through holes on the horizontal plate correspond to the prestressed steel strand through holes on the positioning anchor plate (3) one by one; holes for the pin shafts (7) to pass through are respectively formed in the 4 vertical plates, and screws (33) at the end parts of the external main cables (13) are fixed on the main cable anchoring seat (2) through the pin shafts (7).
6. The suspension cable tunnel bridge tunnel anchorage main cable anchoring system according to claim 1, wherein the horizontal plates of the positioning anchor plate (3), the integral anchor plate (11) and the main cable anchor seat (2) are all arranged perpendicular to the section of the anchor plug body.
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| CN201910201699.0A CN109898414B (en) | 2019-03-18 | 2019-03-18 | Suspension cable pipeline bridge tunnel type anchorage main cable anchoring system |
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| CN201910201699.0A CN109898414B (en) | 2019-03-18 | 2019-03-18 | Suspension cable pipeline bridge tunnel type anchorage main cable anchoring system |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8327978D0 (en) * | 1983-10-19 | 1983-11-23 | Manuf Aceros Caucho Sa | Cable anchorage |
| CN102352601A (en) * | 2011-08-15 | 2012-02-15 | 四川省交通运输厅公路规划勘察设计研究院 | Tunnel type composite anchorage |
| CN103590332A (en) * | 2013-11-25 | 2014-02-19 | 中铁第四勘察设计院集团有限公司 | Tunnel type anchorage suitable for soft rock area |
| CN108867378A (en) * | 2018-09-17 | 2018-11-23 | 四川省铁路产业投资集团有限责任公司 | A kind of Techniques of Tunnel-Type Anchorage for Suspension Bridge and construction method |
| CN209836796U (en) * | 2019-03-18 | 2019-12-24 | 中国石油天然气集团有限公司 | Tunnel type anchorage main cable anchoring system for suspension cable pipeline bridge |
| CN212358029U (en) * | 2020-06-08 | 2021-01-15 | 中铁五局集团机械化工程有限责任公司 | Tunnel type anchorage structure for cable crane |
-
2019
- 2019-03-18 CN CN201910201699.0A patent/CN109898414B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8327978D0 (en) * | 1983-10-19 | 1983-11-23 | Manuf Aceros Caucho Sa | Cable anchorage |
| CN102352601A (en) * | 2011-08-15 | 2012-02-15 | 四川省交通运输厅公路规划勘察设计研究院 | Tunnel type composite anchorage |
| CN103590332A (en) * | 2013-11-25 | 2014-02-19 | 中铁第四勘察设计院集团有限公司 | Tunnel type anchorage suitable for soft rock area |
| CN108867378A (en) * | 2018-09-17 | 2018-11-23 | 四川省铁路产业投资集团有限责任公司 | A kind of Techniques of Tunnel-Type Anchorage for Suspension Bridge and construction method |
| CN209836796U (en) * | 2019-03-18 | 2019-12-24 | 中国石油天然气集团有限公司 | Tunnel type anchorage main cable anchoring system for suspension cable pipeline bridge |
| CN212358029U (en) * | 2020-06-08 | 2021-01-15 | 中铁五局集团机械化工程有限责任公司 | Tunnel type anchorage structure for cable crane |
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