CN112176872B - Method for erecting main cable of anchor suspension bridge of two-bank tunnel - Google Patents
Method for erecting main cable of anchor suspension bridge of two-bank tunnel Download PDFInfo
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- CN112176872B CN112176872B CN202010966910.0A CN202010966910A CN112176872B CN 112176872 B CN112176872 B CN 112176872B CN 202010966910 A CN202010966910 A CN 202010966910A CN 112176872 B CN112176872 B CN 112176872B
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D11/00—Suspension or cable-stayed bridges
- E01D11/02—Suspension bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/14—Towers; Anchors ; Connection of cables to bridge parts; Saddle supports
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/16—Suspension cables; Cable clamps for suspension cables ; Pre- or post-stressed cables
Abstract
The invention belongs to the technical field of suspension bridge construction, and particularly provides a method for erecting a main cable of a two-bank tunnel anchor suspension bridge, which comprises the following steps: arranging main cable installation equipment, pulling a main cable strand anchor head to an anchor opening of the bank A by auxiliary traction equipment, and then separating the main cable strand anchor head from the auxiliary traction equipment; the main cable traction equipment is used for dragging the anchor head of the main cable strand to the front anchor surface of the B bank; leading the anchor head at the tail end of the main cable strand to a front anchor surface of the A bank by a main cable surplus length anchor-entering traction device; and 3) removing the connection between main cable traction equipment at the front anchor face of the bank B and a main cable strand anchor head, connecting the removed main cable strand anchor head with an anchoring point at the front anchor face of the bank B by adopting hoisting equipment, and completing the erection of the main cable.
Description
Technical Field
The invention belongs to the technical field of suspension bridge construction, and particularly relates to a method for erecting a main cable of a double-bank tunnel anchor suspension bridge.
Background
Most of domestic and foreign large-span suspension bridges are provided with tunnel type anchors on one bank or gravity type anchors on both banks. Main cable erection is typically accomplished using either a mature single or double line reciprocating traction system.
In the design of a main cable traction system of a two-bank gravity anchor, a steering wheel and a winch are arranged on the back of the two-bank anchor, so that the main cable is fully covered. For the design of a traction system of a main cable of a tunnel anchor on one shore, a winch is arranged on the back of the gravity anchor, and a steering wheel is arranged on the anchor surface of the tunnel anchor, so that the traction system can fully cover the main cable.
However, for the tunnel type anchors on both banks, the traditional main cable traction system cannot fully cover the main cable, and a set of new main cable erection method needs to be developed.
Disclosure of Invention
The invention provides a method for erecting a main cable of a two-bank tunnel anchor suspension bridge, and aims to solve the problems that the traditional main cable traction system cannot completely cover a main cable for a two-bank tunnel anchor in the prior art, and a set of new main cable erection method needs to be developed.
Therefore, the invention provides a method for erecting a main cable of a two-bank tunnel anchor suspension bridge, which comprises the following steps:
1) arranging main cable installation equipment, wherein the main cable installation equipment comprises main cable traction equipment, auxiliary traction equipment and main cable surplus length anchor entering traction equipment, the traction range of the main cable traction equipment is from an A-bank anchorage opening to a B-bank front anchor face, the traction range of the auxiliary traction equipment is from a cable releasing machine to the front of a portal frame of the A-bank anchorage opening, and the traction range of the main cable surplus length anchor entering traction equipment is from the cable releasing machine to the A-bank front anchor face;
2) the main cable strand anchor head is connected with auxiliary traction equipment, then the main cable strand anchor head is pulled to an anchor opening of the bank A by the auxiliary traction equipment, and then the main cable strand anchor head is separated from the auxiliary traction equipment;
3) connecting the main cable strand anchor head separated in the step 2) by main cable traction equipment, and then drawing the main cable strand anchor head to a front anchor surface of the B bank by the main cable traction equipment;
4) the main cable surplus length anchor-entering traction equipment is connected with the tail end anchor head of the main cable strand, and then the main cable surplus length anchor-entering traction equipment pulls the tail end anchor head of the main cable strand to the front anchor face of the bank A;
5) removing the connection between main cable traction equipment at the front anchor surface of the bank B and a main cable strand anchor head in the step 3), and then connecting the removed main cable strand anchor head with an anchoring point at the front anchor surface of the bank B by adopting hoisting equipment; and 4) removing the connection between the main cable surplus length anchor pulling equipment at the A shore front anchor surface and the main cable strand tail end anchor head, and then connecting the removed main cable strand tail end anchor head with the anchoring point at the A shore front anchor surface by adopting hoisting equipment to complete main cable erection.
Furthermore, the main cable traction equipment comprises a main cable winch, a rotary wheel and a main cable traction puller, wherein the main cable winch is located on the side face of the anchorage opening on the bank A, the rotary wheel is located on the front anchor face on the bank B, the main cable winch is connected with the rotary wheel through a traction steel rope, and the main cable traction puller is connected to the traction steel rope.
Furthermore, supplementary haulage equipment includes 2 supplementary hoists and pulls and draws the ware, and 2 supplementary hoists pass through steel cable connection, pull and draw the ware and connect on the steel cable.
Further, the distance from the cable releasing machine to the anchoring opening of the bank A is equal to the distance from the anchoring opening of the bank A to the front anchoring surface of the bank A.
Further, when the distance from the cable releasing machine to the A-bank anchorage opening is smaller than the distance from the A-bank anchorage opening to the A-bank front anchor face, S-shaped cable releasing equipment is arranged between the cable releasing machine and the A-bank anchorage opening.
Furthermore, the S-shaped cable releasing equipment comprises 2 fixed carrier rollers, 2 movable carrier rollers and a movable carrier roller traction winch, wherein the fixed carrier rollers are distributed at intervals from top to bottom, the 2 fixed carrier rollers are connected with the movable carrier rollers through main cable strands, and the movable carrier rollers are connected with the movable carrier roller traction winch.
Further, still include combination nylon bearing roller, combination nylon bearing roller arranges in main cable strand bend.
Furthermore, the hoisting equipment is an electric hoist.
The invention has the beneficial effects that:
1) according to the method for erecting the main cable of the two-bank tunnel anchor suspension bridge, the anchor head of the main cable strand is connected with the auxiliary traction equipment, the anchor head of the main cable strand is pulled to the anchorage opening of the bank A by the auxiliary traction equipment, then the anchor head of the main cable strand is separated from the auxiliary traction equipment, and the anchor head of the main cable strand is pulled to the front anchor surface of the bank B by the main cable traction equipment; the main cable surplus length anchor-entering traction equipment is connected with the tail end anchor head of the main cable strand, and the main cable surplus length anchor-entering traction equipment pulls the tail end anchor head of the main cable strand to the front anchor face of the bank A; the connection between main cable traction equipment and a main cable strand anchor head at the front anchor face of the bank B is released, and then the released main cable strand anchor head is connected with an anchoring point at the front anchor face of the bank B by adopting hoisting equipment; the connection between the main cable surplus length anchor-entering traction equipment at the front anchor face of the A bank and the anchor head at the tail end of the main cable strand is released, then the hoisting equipment is adopted to connect the released anchor head at the tail end of the main cable strand with the anchor point at the front anchor face of the A bank, the erection of the main cable is completed, the erection method is simple and practical, the tunnel type anchorage of two banks is realized, and the main cable traction system covers the main cable completely;
2) according to the method for erecting the main cable of the two-bank tunnel anchor suspension bridge, the combined nylon carrier roller is arranged at the turning position of the cable strand, so that the bending radius of the cable strand is increased, and wire bulging is avoided.
3) The method for erecting the main cable of the anchor suspension bridge of the two-bank tunnel provided by the invention can be used for construction and erection no matter the distance from the cable releasing machine to the anchoring opening of the bank A is equal to the distance from the anchoring opening of the bank A to the front anchoring surface of the bank A, or the construction site in front of the anchoring opening is small, and the distance from the cable releasing machine to the anchoring opening of the bank A is smaller than the distance from the anchoring opening of the bank A to the front anchoring surface of the bank A, so that the method has strong adaptability.
Drawings
The present invention will be described in further detail below with reference to the accompanying drawings.
FIG. 1 is a front view of a main cable installation apparatus;
FIG. 2 is a top plan view of the main cable installation apparatus;
FIG. 3 is a top view of the main strand anchor head attachment auxiliary pulling apparatus;
FIG. 4 is a top view of an auxiliary pulling apparatus pulling a main cable strand anchor head to an A-bank anchorage opening;
FIG. 5 is a top view of the main cable pulling apparatus pulling the main cable strand anchor head to the front anchor face of the B bank;
FIG. 6 is a top view of the movable idler pulling hoist of the S-shaped payout device without pulling the movable idler;
fig. 7 is a top view of a movable idler traction winch of the S-type payout device pulling a movable idler;
FIG. 8 is a top view of the main cable excess length anchor pulling device connected to the anchor head at the tail end of the main cable strand;
FIG. 9 is a top view of the anchor head at the tail end of the main cable strand pulled by the main cable excess length anchor pulling device;
FIG. 10 is a top view of the main cable strand tail end anchor head being pulled to the A bank front anchor surface by the main cable excess length anchor pulling device;
FIG. 11 is a front view of the anchor head at the tail end of the main cable strand pulled by the main cable excess length anchor pulling device;
fig. 12 is a front view of the main cable surplus length anchor pulling device for pulling the anchor head at the tail end of the main cable strand to the front anchor surface of the A bank.
Description of reference numerals: 1. an A bank anchorage opening; 2. b, a front anchor face of the bank; 3. a, a land front anchor face; 4. a cable releasing machine; 5. a main cable hoist; 6. a rotary wheel; 7. an auxiliary hoist; 8. a puller; 9. fixing the carrier roller; 10. a movable carrier roller; 11. the movable carrier roller pulls the winch; 12. combining a nylon carrier roller; 13. a main cable traction puller; 14. a main cable strand anchor head; 15. a tail end winch; 16. a tower top portal; 17. a cable tower; 18. a catwalk; 19. a traction steel rope; 20. a front anchor chamber; 21. an anchor plug body; 22. a rear anchor chamber; 23. b, anchoring an opening of the bank; 24. the surplus length is inserted into a steering wheel of the anchor traction equipment; 25. the rest length is inserted into the steel rope of the anchor traction equipment; 26. the anchor head at the tail end of the main cable strand.
Detailed Description
Example 1:
as shown in fig. 1-2, a method for erecting a main cable of a double-bank tunnel anchor suspension bridge comprises the following steps:
1) arranging main cable installation equipment, wherein the main cable installation equipment comprises main cable traction equipment, auxiliary traction equipment and main cable surplus length anchor entering traction equipment, the traction range of the main cable traction equipment is from an A-bank anchorage opening 1 to a B-bank front anchor face 2, the traction range of the auxiliary traction equipment is from a cable releasing machine 4 to the front of a portal frame of the A-bank anchorage opening 1, and the traction range of the main cable surplus length anchor entering traction equipment is from the cable releasing machine 4 to the A-bank front anchor face 3; the cable releasing machine 4 is positioned on the side surface of the anchorage opening 1 of the bank A;
2) the main cable strand anchor head 14 is connected with auxiliary traction equipment, then the main cable strand anchor head 14 is pulled to the A bank anchorage opening 1 by the auxiliary traction equipment, and then the main cable strand anchor head 14 is separated from the auxiliary traction equipment;
3) the main cable traction equipment is connected with the main cable strand anchor head 14 separated in the step 2), and then the main cable strand anchor head 14 is dragged to the front anchor surface 2 of the bank B by the main cable traction equipment;
4) the main cable surplus length anchor-entering traction equipment is connected with the main cable strand tail end anchor head 26, and then the main cable surplus length anchor-entering traction equipment pulls the main cable strand tail end anchor head 26 to the A bank front anchor face 3;
5) removing the connection between main cable traction equipment at the front anchor surface 2 of the bank B and a main cable strand anchor head 14 in the step 3), and then connecting the removed main cable strand anchor head 14 with an anchoring point at the front anchor surface 2 of the bank B by adopting hoisting equipment; and (4) removing the connection between the main cable surplus length anchor pulling equipment at the A shore front anchor surface 3 and the main cable strand tail end anchor head 26, and then connecting the removed main cable strand tail end anchor head 26 with the anchoring point at the A shore front anchor surface 3 by adopting hoisting equipment to complete main cable erection.
The catwalk 18 is a construction platform of a main cable of the suspension bridge, the tunnel type anchorage is composed of an anchor plug body 21, a cable saddle foundation, a front anchor chamber 20, a rear anchor chamber 22, a tunnel support, a main cable passing section opening and the like according to functions, the tunnel type anchorage is an underground excavation structure except an opening structure which is positioned outside the ground, the anchor plug body 21 mainly bears the tension of a main cable strand transmitted by a main cable anchoring system together with surrounding rocks, the cable saddle technology mainly bears the main cable force transmitted by a cable saddle, and the front anchor chamber 20 and the rear anchor chamber 22 are closed spaces and play a role in protecting the main cable; the main cable strand is wound on a cable reel, the cable reel is installed on a cable releasing machine 4, one end of the main cable strand is a main cable strand anchor head 14, the other end of the main cable strand is a main cable strand tail end anchor head 26, the main cable strand anchor head 14 is pulled to a B-bank front anchor surface 2 from an A-bank anchor hole 1 by main cable pulling equipment, and the same purpose can be achieved by adopting a common small-cycle pulling system or a large-cycle pulling system; the erection method is simple and practical, and realizes the tunnel type anchorage at both banks and the full coverage of the main cable by the main cable traction system.
Example 2:
on the basis of the embodiment 1, as shown in fig. 5, further, the main cable pulling device includes a main cable winch 5, a rotary wheel 6 and a main cable pulling and pulling device 13, the main cable winch 5 is located on the side surface of the anchorage opening 1 on the bank a, the rotary wheel 6 is located on the front anchor surface 2 on the bank B, the main cable winch 5 is connected with the rotary wheel 6 through a pulling steel cable 19, and the main cable pulling and pulling device 13 is connected to the pulling steel cable 19.
The main cable pulls drags and draws ware 13 and connects main cable strand anchor head 14, starts main cable hoist engine 5 and pulls main cable and pulls drags and draw ware 13, with main cable strand anchor head 14 by A bank anchorage entrance 1 to B bank front anchor face 2, gyrostat 6 is used for turning back drags the ware to A bank anchorage entrance 1, prepares to carry out next main cable strand anchor head 14 and pulls, convenient and fast pulls main cable strand anchor head 14 to B bank front anchor face 2's anchor point position by A bank anchorage entrance 1, simple and practical, maneuverability is strong.
Example 3:
on the basis of embodiment 2, as shown in fig. 3-4, further, the auxiliary traction device comprises 2 auxiliary winches 7 and a puller 8, wherein the 2 auxiliary winches 7 are connected through a steel rope, and the puller 8 is connected to the steel rope. The main cable strand anchor head 14 is connected with the dragging device 8, the 2 auxiliary winches 7 are started to drag the dragging device 8 to drive the main cable strand anchor head 14 to the A bank anchorage opening 1, then the main cable strand anchor head 14 is separated from the dragging device 8 and is connected with the main cable traction dragging device 13, and the dragging device 8 is driven by the auxiliary winches 7 to rotate to the cable releasing machine 4 to prepare for dragging the next main cable strand.
Further, the distance from the cable releasing machine 4 to the A-bank anchorage opening 1 is equal to the distance from the A-bank anchorage opening 1 to the A-bank front anchor face 3. Because the distance L2 between the cable releasing machine 4 and the anchorage opening 1 of the A bank is the same as the distance L1 between the anchorage opening 1 of the A bank and the front anchor surface 3 of the A bank, when the anchor head 14 of the main cable strand is pulled to the front anchor surface of the B bank, the main cable strand is completely separated from the cable disc of the cable releasing machine.
Further, the combined nylon carrier roller 12 is further included, and the combined nylon carrier roller 12 is arranged at the bend of the main cable strand. And a combined nylon carrier roller is arranged at the turning position of the main cable strand, so that the bending radius of the main cable strand is increased, and wire bulging is avoided.
Example 4:
on the basis of the embodiment 3, as shown in fig. 6 to 7, further, when the distance from the rope releasing machine 4 to the a-bank anchorage opening 1 is smaller than the distance from the a-bank anchorage opening 1 to the a-bank front anchor face 3, S-shaped rope releasing equipment is arranged between the rope releasing machine 4 and the a-bank anchorage opening 1. If the construction site in front of the anchorage opening is small, and the distance from the cable releasing machine 4 to the A bank anchorage opening 1 is smaller than the distance from the A bank anchorage opening 1 to the A bank front anchor face 3, S-shaped cable releasing equipment can be adopted, namely an S-shaped cable unfolding scheme is adopted to pull the surplus length of the cable strand in the cable tray of the cable releasing machine out of the cable tray, so that the main cable strand is completely separated from the cable tray of the cable releasing machine, the structure is simple, and the adaptability is strong.
Further, the S-shaped cable releasing equipment comprises fixed carrier rollers 9, movable carrier rollers 10 and movable carrier roller traction winches 11, wherein the number of the fixed carrier rollers 9 is 2, the 2 fixed carrier rollers 9 are distributed at intervals from top to bottom, the 2 fixed carrier rollers 9 and the movable carrier rollers 10 are connected through main cable strands, and the movable carrier rollers 10 are connected with the movable carrier roller traction winches 11. After the anchor head 14 of the main cable strand is pulled to the front anchor face 2 of the bank B, the movable carrier roller traction winch 11 pulls the movable carrier roller 10, the cable is released by matching with the cable releasing machine 4, and the surplus length of the main cable strand in the reel is completely pulled out of the cable reel.
As shown in fig. 8-12, the main cable surplus anchor-entering traction device is connected with the main cable strand tail end anchor head 26, and then the main cable surplus anchor-entering traction device pulls the main cable strand tail end anchor head 26 to the a-bank front anchor face 3; further, the main cable surplus length anchor-entering traction equipment comprises 2 tail end winches 15 and steel cables, wherein the 2 tail end winches 15 are connected through the steel cables, and the 2 tail end winches 15 are positioned on two sides of the A bank anchor opening 1; the specific operation method comprises the following steps: the anchor pulling equipment for the surplus main cable to be grown is connected with the anchor head 26 at the tail end of the main cable strand, 2 tail end windlasses 15 are started, the movable carrier rollers are synchronously loosened to pull the windlass 11, the strand tail end is pulled to the anchor face 3 in front of the A bank, the number of used equipment is reduced, and the operation is simple.
Further, the main cable surplus length anchor-entering traction device also comprises a surplus length anchor-entering traction device steering wheel 24, so that the tail end anchor head 26 of the main cable strand can be conveniently steered.
Furthermore, the hoisting equipment is an electric hoist. The electric hoist has small volume, light dead weight, simple operation and convenient use. The hoisting equipment is arranged in a front anchor chamber on the bank B and a front anchor chamber on the bank A, and is convenient for fixing the anchor head of the main cable strand and the anchor head 26 at the tail end of the main cable strand.
In the description of the present invention, it is to be understood that any terms indicating an orientation or positional relationship are based on those shown in the drawings, and do not indicate or imply that the referenced device or element must have a particular orientation, configuration or operation in a particular orientation, and therefore, the terms describing a positional relationship in the drawings are for illustrative purposes only and should not be construed as limiting the present patent.
The above examples are merely illustrative of the present invention and should not be construed as limiting the scope of the invention, which is intended to be covered by the claims and any design similar or equivalent to the scope of the invention.
Claims (8)
1. A method for erecting main cables of a two-bank tunnel anchor suspension bridge is characterized by comprising the following steps: the method comprises the following steps:
1) arranging main cable installation equipment, wherein the main cable installation equipment comprises main cable traction equipment, auxiliary traction equipment and main cable surplus length anchor entering traction equipment, the traction range of the main cable traction equipment is from an A bank anchorage opening (1) to a B bank front anchor face (2), the traction range of the auxiliary traction equipment is from a cable releasing machine (4) to the front of a portal frame of the A bank anchorage opening (1), and the traction range of the main cable surplus length anchor entering traction equipment is from the cable releasing machine (4) to the A bank front anchor face (3);
2) the main cable strand anchor head (14) is connected with auxiliary traction equipment, then the main cable strand anchor head (14) is pulled to the anchorage opening (1) of the A bank by the auxiliary traction equipment, and then the main cable strand anchor head (14) is separated from the auxiliary traction equipment;
3) the main cable traction equipment is connected with the main cable strand anchor head (14) separated in the step 2), and the main cable strand anchor head (14) is dragged to the front anchor surface (2) of the bank B by the main cable traction equipment;
4) the main cable surplus length anchor entering traction equipment is connected with a main cable strand tail end anchor head (26), and then the main cable surplus length anchor entering traction equipment pulls the main cable strand tail end anchor head (26) to the A bank front anchor face (3);
5) removing the connection between main cable traction equipment at the front anchor surface (2) of the bank B and a main cable strand anchor head (14) in the step 3), and then connecting the removed main cable strand anchor head (14) with an anchoring point at the front anchor surface (2) of the bank B by adopting hoisting equipment; and (4) removing the connection between the main cable surplus length anchor pulling equipment at the A shore front anchor face (3) and the main cable strand tail end anchor head (26), and then connecting the removed main cable strand tail end anchor head (26) with the anchoring point at the A shore front anchor face (3) by adopting hoisting equipment to complete main cable erection.
2. The method for erecting a main cable of a double-shore tunnel anchor suspension bridge according to claim 1, wherein: the main cable traction equipment comprises a main cable winch (5), a rotary wheel (6) and a main cable traction puller (13), wherein the main cable winch (5) is located on the side face of an A-bank anchorage opening (1), the rotary wheel (6) is located on a B-bank front anchor face (2), the main cable winch (5) is connected with the rotary wheel (6) through a traction steel rope (19), and the main cable traction puller (13) is connected to the traction steel rope (19).
3. The method for erecting a main cable of a double-shore tunnel anchor suspension bridge according to claim 2, wherein: the auxiliary traction equipment comprises 2 auxiliary winches (7) and a pulling device (8), wherein the 2 auxiliary winches (7) are connected through steel ropes, and the pulling device (8) is connected to the steel ropes.
4. The method for erecting a main cable of a double-shore tunnel anchor suspension bridge according to claim 1, wherein: the distance from the cable releasing machine (4) to the A-bank anchorage opening (1) is equal to the distance from the A-bank anchorage opening (1) to the A-bank front anchor face (3).
5. The method for erecting a main cable of a double-shore tunnel anchor suspension bridge according to claim 1, wherein: and when the distance from the cable releasing machine (4) to the A-bank anchorage opening (1) is smaller than the distance from the A-bank anchorage opening (1) to the A-bank front anchor face (3), S-shaped cable releasing equipment is arranged between the cable releasing machine (4) and the A-bank anchorage opening (1).
6. The method for erecting a main cable of a double-shore tunnel anchor suspension bridge according to claim 5, wherein: the S-shaped cable releasing equipment comprises fixed carrier rollers (9), movable carrier rollers (10) and movable carrier roller traction winches (11), wherein the number of the fixed carrier rollers (9) is 2, the 2 fixed carrier rollers (9) are distributed at intervals from top to bottom, the 2 fixed carrier rollers (9) are connected with the movable carrier rollers (10) through main cable strands, and the movable carrier rollers (10) are connected with the movable carrier roller traction winches (11).
7. The method for erecting a main cable of a double-shore tunnel anchor suspension bridge according to claim 1, wherein: the combined nylon carrier roller (12) is further included, and the combined nylon carrier roller (12) is arranged at the bent position of the main cable strand.
8. The method for erecting a main cable of a double-shore tunnel anchor suspension bridge according to claim 1, wherein: the hoisting equipment is an electric hoist.
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| CN202010966910.0A CN112176872B (en) | 2020-09-15 | 2020-09-15 | Method for erecting main cable of anchor suspension bridge of two-bank tunnel |
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| CN202010966910.0A CN112176872B (en) | 2020-09-15 | 2020-09-15 | Method for erecting main cable of anchor suspension bridge of two-bank tunnel |
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| CN113605230A (en) * | 2021-07-12 | 2021-11-05 | 中交二公局第二工程有限公司 | Main cable traction system and method suitable for suspension bridge two-bank tunnel anchor |
| CN113774806B (en) * | 2021-09-29 | 2023-10-20 | 中铁大桥局集团有限公司 | Suspension bridge main cable strand traction control system and method |
| CN114457670B (en) * | 2022-02-25 | 2024-03-19 | 中交第二公路勘察设计研究院有限公司 | Rotary anchoring main cable ground anchor type suspension bridge and construction method |
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