CN210003305U - Construction system for achieving traction in place in narrow anchor space of ultra-long tunnel in modes - Google Patents
Construction system for achieving traction in place in narrow anchor space of ultra-long tunnel in modes Download PDFInfo
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- CN210003305U CN210003305U CN201920581818.5U CN201920581818U CN210003305U CN 210003305 U CN210003305 U CN 210003305U CN 201920581818 U CN201920581818 U CN 201920581818U CN 210003305 U CN210003305 U CN 210003305U
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Abstract
The utility model discloses a construction system for realizing narrow space traction in place of an ultra-long tunnel anchor, which is provided with a traction system and a conversion device and comprises the following steps of (1) arrangement of the traction system, (2) arrangement of the conversion device and (3) a conversion method, wherein the ① strand traction rope is converted and is dragged before the conversion, the ② th conversion device hangs a traction rope, the ③ second conversion device is separated from the traction rope, the ④ second conversion device hangs the traction rope, the ⑤ third conversion device is separated from the traction rope, and the 0 third conversion device hangs the traction rope, so that when the tunnel anchor is longer in length, narrow in space and large in gradient, the main cable strand can be efficiently and safely pulled in place by using the conversion device arranged on a scattered cable saddle frame.
Description
Technical Field
The utility model relates to a civil engineering suspension bridge construction field, it utilizes traction system conversion equipment to realize kinds of main push-towing ropes strand specifically to realize that the narrow space of overlength tunnel anchor pulls the construction system who targets in place.
Background
When the main cable strand of the suspension bridge is pulled to the scattered cable saddle of the tunnel anchor, due to gradient change, the space is narrow, large-scale mechanical equipment cannot enter a hole for construction, times of pulling in place cannot be realized by adopting a conventional main cable strand pulling process, and times of pulling in place can be realized by adopting simple conversion of the system, so that the pulling efficiency is improved.
SUMMERY OF THE UTILITY MODEL
Therefore, in order to solve the above-mentioned deficiency, the utility model discloses kinds of main cable strands realize drawing construction system and method that the narrow space of overlength tunnel anchor put in place here, can be high-efficient, safe draw main cable times put in place.
The utility model is realized by constructing construction systems for realizing times of traction in place in the narrow anchor space of the ultra-long tunnel, and is characterized in that the construction system is provided with a traction system and a conversion device;
the traction system mainly comprises a cable scattering saddle frame, a chain block, a catwalk frame, a catwalk frame guide wheel set, a main traction winch, an auxiliary traction winch, a traction cable, a dragging device, a catwalk bottom plate traction device, a horizontal guide wheel and an anchoring steel pipe, wherein the traction cable on the main traction winch and the auxiliary traction winch is connected through the dragging device to form a traction system finally, the catwalk frame guide wheel set is installed on the catwalk frame, the horizontal guide wheel is arranged on the anchoring steel pipe, a conversion device is arranged in a cable scattering saddle frame in a tunnel anchor, 3 cables are arranged on a coaxial line and fixed on a tunnel anchor primary support arch ring steel through the chain block, the dragging device is arranged on the traction cable, and the traction cable passes through rotating wheels corresponding to the 3 conversion devices and then bypasses a guide wheel at the bottom and is connected to the horizontal guide wheel.
The construction system for achieving times of traction in place of the ultra-long tunnel anchor narrow space through main cable strands is achieved in the following mode;
, arranging a traction system, wherein the traction system mainly comprises a cable saddle buttress frame, a tunnel anchor opening frame, a tower top frame, a tower top arc guide wheel set, traction winches (a main traction winch and an auxiliary traction winch), a traction cable, a dragging device, a catwalk frame, a catwalk frame guide wheel set, carrier rollers at all parts, related guide wheels and the like, wherein the traction cable on the main traction winch and the auxiliary traction winch is connected through the dragging device to finally form the traction system;
arranging a conversion device, namely arranging the conversion device in a cable saddle frame in the tunnel anchor, arranging 3 devices on a coaxial line, and fixing the conversion device on the tunnel anchor primary support arch ring section steel through a chain block;
step three: the conversion operation method comprises the following steps:
①, dragging the main cable strand to the front end of the tunnel anchor cable saddle by a conventional method and passing through a -th conversion device, wherein in the process of effectively raising the height of the dragging cable at the tunnel anchor cable saddle, the dragging cable is hung in a rotating wheel groove of a second conversion device and a third conversion device, and the height of the dragging cable is controlled by a chain block;
② a conversion device hanging traction rope, wherein when the anchor head of a main cable strand is drawn to approach the conversion device, the traction speed is controlled and reduced, when the anchor head of the cable strand exceeds the conversion device by 50cm, the traction is stopped, a chain block at the conversion device is put down, a block hook is hung on the conversion device, the traction rope of the traction system is hung in a rotating wheel groove of the conversion device, and the chain block is slowly lifted due to the limitation of space height, so that the cable strand anchor head is lifted to a fixed height and is not contacted with the ground;
③ separating the second conversion device from the traction rope, continuously drawing the main cable strand, stopping drawing when the anchor head of the cable strand is 50cm away from the second conversion device, separating the second conversion device from the traction rope, and continuously drawing to make the anchor head of the cable strand smoothly pass through the second conversion device;
④ hanging a traction rope by a second conversion device, namely stopping traction after the anchor head of the cable strand passes through the second conversion device, hanging the traction rope in a rotating wheel groove of the second conversion device, lifting the traction rope to the maximum height by using a chain block, and continuously drawing the main cable strand;
⑤ separating the third conversion device from the hauling rope, when the cable strand anchor head is hauled 50cm away from the third conversion device, using the second conversion device as the fulcrum to separate the third conversion device from the hauling rope and continue hauling;
⑥ a traction rope is hung on the third conversion device, the space height of the rope strand anchor head is limited, if the rope strand anchor head is continuously pulled to be connected with the scattered rope saddle pier cap concrete to trigger friction and damage the main rope strand, the traction rope stops pulling after passing through the third conversion device, the traction rope is hung in the rotating wheel groove of the third conversion device, the main rope strand is lifted by the chain block, and the traction rope is continuously pulled to the place for times.
The utility model has the advantages that the utility model discloses a construction system and a method that main cable strands utilize traction system conversion equipment to realize traction in-place in the narrow space of overlength tunnel anchor, the construction system has traction system and conversion equipment, the operation includes the following steps (1) arrangement of traction system, (2) arrangement of conversion equipment, (3) conversion method, ① cable strand haulage rope is hauled before conversion, ② conversion equipment hangs the haulage rope, ③ second conversion equipment is separated from the haulage rope, ④ second conversion equipment hangs the haulage rope, ⑤ third conversion equipment is separated from the haulage rope, 0 third conversion equipment hangs the haulage rope, when being suitable for tunnel anchor length longer, space is narrow, when the slope is great, utilize the conversion equipment that sets up on scattered cable saddle frame can high-efficient, safe with main cable strand traction in-place.
Drawings
FIG. 1 is a drawing system and conversion equipment layout;
FIG. 2 is a schematic view of a switching device arrangement;
fig. 3 is a schematic view of the conversion device.
Detailed Description
The present invention will be described in detail with reference to fig. 1 to 3, and the technical solutions in the embodiments of the present invention will be clearly and completely described, and it is obvious that the described embodiments are only partial embodiments of the present invention , but not all embodiments.
The utility model discloses an improve and provide kinds of main cable strands here and realize that the narrow space of overlength tunnel anchor pull the construction system that targets in place, wherein this construction system has traction system and conversion equipment;
the traction system mainly comprises a cable scattering saddle frame 1, a chain block 2, a catwalk frame 3, a catwalk frame guide wheel group 4, a main and auxiliary traction winch, a traction cable 5, a puller 6, a catwalk bottom plate pull 7, a horizontal guide wheel 8 and an anchoring steel pipe 9, wherein the traction cable on the main and auxiliary traction winch is connected through the puller 6 to finally form the traction system, the catwalk frame guide wheel group 4 is installed on the catwalk frame 3, the horizontal guide wheel 8 is arranged on the anchoring steel pipe 9, a conversion device 10 is arranged in the cable scattering saddle frame 1 in a tunnel anchor, 3 guide wheels are arranged on a coaxial line and fixed on a tunnel anchor primary supporting arch ring section steel through the chain block 2, the puller 6 is arranged on the traction cable 5, and the traction cable 5 passes through corresponding rotating wheels of the 3 conversion devices 10 and then bypasses the guide wheel 11 at the bottom and then is connected to the horizontal guide wheel 8.
The construction method for achieving times of traction in place of the ultra-long tunnel anchor narrow space through main cable strands is achieved in the following mode;
, arranging a traction system, wherein the traction system mainly comprises a cable saddle buttress frame, a tunnel anchor opening frame, a tower top frame, a tower top arc guide wheel set, traction winches (a main traction winch and an auxiliary traction winch), a traction cable, a dragging device, a catwalk frame, a catwalk frame guide wheel set, carrier rollers at all parts, related guide wheels and the like, wherein the traction cable on the main traction winch and the auxiliary traction winch is connected through the dragging device to finally form the traction system;
arranging a conversion device, namely arranging the conversion device in a cable saddle frame in the tunnel anchor, arranging 3 devices on a coaxial line, and fixing the conversion device on the tunnel anchor primary support arch ring section steel through a chain block;
step three: the conversion operation method comprises the following steps:
①, dragging the main cable strand to the front end of the tunnel anchor cable saddle by a conventional method and passing through a -th conversion device, wherein in the process of effectively raising the height of the dragging cable at the tunnel anchor cable saddle, the dragging cable is hung in a rotating wheel groove of a second conversion device and a third conversion device, and the height of the dragging cable is controlled by a chain block;
② a conversion device hanging traction rope, wherein when the anchor head of a main cable strand is drawn to approach the conversion device, the traction speed is controlled and reduced, when the anchor head of the cable strand exceeds the conversion device by 50cm, the traction is stopped, a chain block at the conversion device is put down, a block hook is hung on the conversion device, the traction rope of the traction system is hung in a rotating wheel groove of the conversion device, and the chain block is slowly lifted due to the limitation of space height, so that the cable strand anchor head is lifted to a fixed height and is not contacted with the ground;
③ separating the second conversion device from the traction rope, continuously drawing the main cable strand, stopping drawing when the anchor head of the cable strand is 50cm away from the second conversion device, separating the second conversion device from the traction rope, and continuously drawing to make the anchor head of the cable strand smoothly pass through the second conversion device;
④ hanging a traction rope by a second conversion device, namely stopping traction after the anchor head of the cable strand passes through the second conversion device, hanging the traction rope in a rotating wheel groove of the second conversion device, lifting the traction rope to the maximum height by using a chain block, and continuously drawing the main cable strand;
⑤ separating the third conversion device from the hauling rope, when the cable strand anchor head is hauled 50cm away from the third conversion device, using the second conversion device as the fulcrum to separate the third conversion device from the hauling rope and continue hauling;
⑥ a traction rope is hung on the third conversion device, the space height of the rope strand anchor head is limited, if the rope strand anchor head is continuously pulled to be connected with the scattered rope saddle pier cap concrete to trigger friction and damage the main rope strand, the traction rope stops pulling after passing through the third conversion device, the traction rope is hung in the rotating wheel groove of the third conversion device, the main rope strand is lifted by the chain block, and the traction rope is continuously pulled to the place for times.
The utility model has the advantages that:
1. the system can solve the problem that traction can not be performed in place in a narrow space of the ultra-long tunnel anchor, effective conversion of conditions of different gradients and inclination angles in the ultra-long tunnel anchor is also solved through the system, traction is performed in place, a plurality of complex links are simplified, efficiency is improved, and construction safety is guaranteed.
2. The system can be repeatedly and cyclically utilized, the cost is low, the operation is simple, and the labor is saved.
Various modifications to these embodiments will be readily apparent to those skilled in the art, and the -like principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention.
Claims (1)
1, construction system for realizing times traction in place in the narrow space of the ultra-long tunnel anchor, which is characterized in that the construction system is provided with a traction system and a conversion device;
the traction system mainly comprises a cable scattering saddle frame (1), a chain block (2), a catwalk frame (3), a catwalk frame guide wheel set (4), a main traction winch and an auxiliary traction winch, a traction cable (5), a puller (6), a catwalk bottom plate pull (7), a horizontal guide wheel (8) and an anchoring steel pipe (9), wherein the traction cable on the main traction winch and the auxiliary traction winch is connected through the puller (6) to form a traction system finally, the catwalk frame guide wheel set (4) is installed on the catwalk frame (3), the horizontal guide wheel (8) is arranged on the anchoring steel pipe (9), a conversion device (10) is arranged in the cable scattering saddle frame (1) in a tunnel anchor, 3 traction cables are arranged on a coaxial line and fixed on a tunnel anchor primary arch ring steel through the chain block (2), the puller (6) is arranged on the traction cable (5), and the traction cable (5) passes through a rotating guide wheel (11) corresponding to the 3 platform conversion device (10) and then is connected to the horizontal guide wheel (8) after passing through the bottom of the rotating guide wheel (11).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920581818.5U CN210003305U (en) | 2019-04-26 | 2019-04-26 | Construction system for achieving traction in place in narrow anchor space of ultra-long tunnel in modes |
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| CN201920581818.5U CN210003305U (en) | 2019-04-26 | 2019-04-26 | Construction system for achieving traction in place in narrow anchor space of ultra-long tunnel in modes |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109973130A (en) * | 2019-04-26 | 2019-07-05 | 四川路桥华东建设有限责任公司 | Once draw construction system and method in place in a kind of main cable strand realization narrow space of Super Long Tunnel anchor |
| CN111877176A (en) * | 2020-07-31 | 2020-11-03 | 中交武汉港湾工程设计研究院有限公司 | Anchor structure for spreading anchor cable into anchor of guide tunnel and construction method |
| CN112176872A (en) * | 2020-09-15 | 2021-01-05 | 中交二公局第二工程有限公司 | Method for erecting main cable of anchor suspension bridge of two-bank tunnel |
| 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 |
-
2019
- 2019-04-26 CN CN201920581818.5U patent/CN210003305U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109973130A (en) * | 2019-04-26 | 2019-07-05 | 四川路桥华东建设有限责任公司 | Once draw construction system and method in place in a kind of main cable strand realization narrow space of Super Long Tunnel anchor |
| CN109973130B (en) * | 2019-04-26 | 2023-09-08 | 四川路桥华东建设有限责任公司 | Construction system and method for realizing one-time traction of extra-long tunnel anchor narrow space by main cable strand |
| CN111877176A (en) * | 2020-07-31 | 2020-11-03 | 中交武汉港湾工程设计研究院有限公司 | Anchor structure for spreading anchor cable into anchor of guide tunnel and construction method |
| CN111877176B (en) * | 2020-07-31 | 2021-12-31 | 中交武汉港湾工程设计研究院有限公司 | Anchor structure for spreading anchor cable into anchor of guide tunnel and construction method |
| CN112176872A (en) * | 2020-09-15 | 2021-01-05 | 中交二公局第二工程有限公司 | Method for erecting main cable of anchor suspension bridge of two-bank tunnel |
| CN112176872B (en) * | 2020-09-15 | 2022-03-01 | 中交二公局第二工程有限公司 | Method for erecting main cable of anchor suspension bridge of two-bank tunnel |
| 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 |
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