CN113815654A - Construction method for translating and replacing steel cable of cross-river cableway - Google Patents

Construction method for translating and replacing steel cable of cross-river cableway Download PDF

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Publication number
CN113815654A
CN113815654A CN202111273219.5A CN202111273219A CN113815654A CN 113815654 A CN113815654 A CN 113815654A CN 202111273219 A CN202111273219 A CN 202111273219A CN 113815654 A CN113815654 A CN 113815654A
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steel cable
new
rope
old
cable
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CN113815654B (en
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何前
赵志仁
藏隆超
杨彬
金卫
王成明
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Chengdu Environmental Engineering Construction Co ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61BRAILWAY SYSTEMS; EQUIPMENT THEREFOR NOT OTHERWISE PROVIDED FOR
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Abstract

The invention discloses a construction method for translating and replacing a steel cable of a river-crossing cableway, which comprises the following steps: s1Erecting a new bent frame and pouring a new anchor pile; s2Old wire rope translation: erecting a construction steel cable, enabling the construction steel cable to be clamped with the old steel cable after passing over a cable supporting wheel on the new bent, and driving the old steel cable to move horizontally towards the direction close to the new bent by using the construction steel cable; s3Wire rope replacement. The construction method for the steel cable translation and replacement of the across-river cableway can realize the rapid updating and reconstruction of the cableway and the removal of the old cableway, greatly reduce the consumption of manpower and material resources, and meanwhile, the steel cable replacement by adopting the method can be carried out under the condition that the across river does not stop the navigation, thereby greatly reducing the handling of the navigation stop procedure and the economic loss caused by the navigation stop, and also reducing the interference on the normal public traffic order.

Description

Construction method for translating and replacing steel cable of cross-river cableway
Technical Field
The invention relates to the technical field of river-crossing cableway transformation, in particular to a construction method for translating and replacing a steel cable of a river-crossing cableway.
Background
The steel cable is used as a bearing and traction rope for the car in a cableway system, and is easy to wear and even break after being used for a certain period of time, so that a new steel cable needs to be replaced in time to ensure the use safety of the cableway. Because the cableway is installed in the air, roads, rivers and the like are generally arranged below the cableway, when the steel cable is replaced, if the tension of the steel cable is released and the steel cable is replaced after being placed on the ground, the transportation and the shipping are affected, great economic loss is caused, and the normal public transportation order is interfered.
Disclosure of Invention
In order to solve the problems, the invention provides a construction method for translating and replacing a steel cable of a river-crossing cableway, which utilizes an old steel cable to assist the installation of a new steel cable, and the new steel cable can also assist the disassembly of the old steel cable, can translate and replace the steel cable under the condition of no-break navigation, reduces the difficulty of replacing the steel cable of the cableway, and also reduces the interference of the normal social order to the cableway.
The invention specifically adopts the following technical scheme for realizing the purpose:
a construction method for translating and replacing a steel cable of a river-crossing cableway comprises the following steps:
S1erecting a new bent frame and pouring a new anchor pile;
S2old wire rope translation: erecting a construction steel cable, enabling the construction steel cable to be clamped with the old steel cable after passing over a cable supporting wheel on the new bent, and driving the old steel cable to move horizontally towards the direction close to the new bent by using the construction steel cable;
S3wire rope replacement:
S31releasing the traction ropes crossing the two banks and hanging the traction ropes on the old steel cable;
S32the new steel cable is clamped with the traction cable after passing over the cable supporting wheel on the bent frame;
S33arranging winches at two ends of the traction cable, and driving the traction cable to move by using the winches to drive the new steel cable to cross two banks;
S34fixing one end of the new steel cable on the new anchor pile, and adjusting the sag of the new steel cable;
S35arc sag of new steel cableAfter the steel cable is tightened to the designed sag, the other end of the new steel cable is fixed on the new anchor pile;
S36and clamping the rope head at one end of the old steel rope on the traction rope, and driving the old steel rope to move by using a winch for recovery.
Further, the step S1In the middle, if a house is arranged between the new bent frame and the new anchor pile, scaffolds need to be erected on two sides of the house, and steel wire meshes are hung on the scaffolds for protection.
Further, the step S2The specific operation is as follows:
S21steel cable translation of the right bank
The tail end of the construction steel cable is anchored on a new anchor pile on the right bank, and the rope head is clamped with the old steel cable after crossing a rope supporting wheel at a new bent on the right bank;
the sag of the old steel cable is released by using the old anchor pile, and the construction steel cable is gradually tensioned by using the combination of the chain block and the pulley, so that the translation of the old steel cable on the right bank is realized;
S22left bank cable translation
Anchoring the tail end of the construction steel cable on a new anchor pile of the left bank, and enabling the rope head of the construction steel cable to cross a rope supporting wheel at a new bent of the left bank and then be clamped with the old steel cable;
the sag of the old steel cable is released by using the old anchor pile, and the construction steel cable is gradually tensioned by using the combination of the hand chain hoist and the pulley, so that the translation of the old steel cable on the left bank is realized.
Further, the step S2When the old steel cable is connected with the new steel cable in a clamping mode, workers are conveyed to one side, away from the bank, of the old anchor pile of the old bent frame through the hanging basket to operate, of the old steel cable, and an included angle between the old steel cable and the construction steel cable needs to be formed<5°。
Further, the step S31The traction cable is hung on the old steel cable through the uniformly distributed support horses; said step S32In the middle, the rope end of the new steel cable is clamped with the traction rope after passing over the rope supporting wheel at the top of the new bent and the first bearing horse close to the new bent, and the rope supporting wheel positioned between the new bent and the first bearing horse close to the new bent are arranged on the new steel cableThe gravity rotator is installed, and meanwhile, a heavy object with a certain weight is hung on the bearing at once.
Further, the step S33In the process of unfolding and placing the new steel cable, a bearing horse is additionally arranged at the rear part and synchronously detached at the front part along the moving direction of the new steel cable.
Further, the step S34In the process, after a new steel cable is pulled in place, the rope head at the end of the new steel cable is anchored on a new anchor pile, the traction rope on the opposite-shore winch is taken down, the traction rope is temporarily anchored, the rope head of the new steel cable is overturned over a new bent bracket rope wheel and a guide wheel at the position of the new anchor pile to be clamped with a movable pulley of a pulley group, the fixed pulley is clamped with the new bent bracket, the movable pulley is driven to move by using the winch, the sag of the new steel cable is improved, and the supporting horse is overturned.
Further, the step S36In the process, rope ends at two ends of a traction rope are wound on a winch, one end of an old steel rope is clamped on the traction rope, a gravity rotator is installed at the rope end of the old steel rope, meanwhile, a first bearing close to the clamping position is hung with a heavy object with certain weight at once, and meanwhile, a bearing is synchronously detached in the process of recycling the old steel rope.
The invention has the following beneficial effects:
1. when a new steel cable is replaced, the old steel cable can be used for drawing the new steel cable, so that the new steel cable can be erected, and the erection difficulty of the new steel cable is effectively reduced;
2. after the new steel cable is erected, the old steel cable can be disassembled and recycled by using the new steel cable, so that the disassembling and recycling difficulty of the old steel cable is reduced;
3. the new steel cable can be erected and the old steel cable can be recovered only by laying the traction rope once, so that the using quantity and the erecting time of auxiliary equipment are reduced, the consumption of manpower and material resources is reduced, and the speed of replacing the steel cable of the cableway is greatly increased;
4. the steel cable can be translated and replaced under the condition of no-break navigation, thereby reducing the difficulty of replacing the steel cable of the cableway and reducing the interference of replacing the steel cable on normal social order.
Drawings
FIG. 1 is a schematic view of a bearing mechanism;
FIG. 2 is a schematic view of a first engagement mode of an old steel cable and a construction steel cable;
FIG. 3 is a schematic diagram of a basket moving mode structure;
FIG. 4 is a schematic view of the fitting structure of the pulley and the chain block;
FIG. 5 is a schematic structural view of the old steel cable and the construction steel cable which are translated after being clamped in a first clamping manner;
FIG. 6 is a schematic view of a second engagement mode of an old steel cable and a construction steel cable;
FIG. 7 is a schematic structural view of the old steel cable and the construction steel cable which are translated after being clamped in a second clamping manner;
FIG. 8 is a schematic view of the connection of the traction cable to the old and new ropes;
FIG. 9 is a schematic view of a new rope pull configuration;
FIG. 10 is a schematic view of the sag adjustment structure of the new rope;
FIG. 11 is a schematic view of an old cable removal configuration;
FIG. 12 is a theoretical model diagram of the calculation of rope tension;
reference numerals: 1-new bent, 2-new anchor piles, 3-old bent, 4-old steel cables, 5-construction steel cables, 6-hanging basket, 7-pulley, 8-chain block, 9-traction cable, 10-bearing horse, 11-new steel cables, 12-gravity rotator, 13-weight, 14-winch, 15-fixed pulley and 16-movable pulley.
Detailed Description
In the description of the present invention, unless otherwise expressly specified or limited, the terms "disposed" and "in communication" are to be construed broadly, e.g., as meaning in fixed communication, in removable communication, or in integral communication; either mechanically or electrically; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Examples
The embodiment provides a construction method for translating and replacing a steel cable of a river-crossing cableway, which comprises the following steps:
S1selecting addresses, then erecting a new bent frame 1 and pouring a new anchor pile 2; wherein, the regional interior inspection is carried out earlier before setting up new framed bent 1, pouring new anchor pile 2, if there is the house, then preferably set up the scaffold frame in house both sides to hang at the scaffold frame and establish the wire net and protect, the erection height of scaffold frame and the length of wire net etc. all can adjust according to actual conditions.
S2Translation of the old steel cord 4: erecting a construction steel cable 5, enabling the construction steel cable 5 to be clamped with the old steel cable 4 after passing over a cable supporting wheel on the new bent 1, and driving the old steel cable 4 to translate towards the direction close to the new bent 1 by using the construction steel cable 5;
S3wire rope replacement:
S31the old steel rope 4 is used as a bearing rope, the traction ropes 9 crossing two banks are released, the traction ropes 9 are hung on the old steel rope 4, the traction ropes 9 only bear the traction function, the overlarge diameter can be omitted to reduce the weight, and the release of the traction ropes 9 can be realized by the traction system of the original cableway;
S32the new steel cable 11 is clamped with the traction cable 9 after passing over the cable supporting wheel on the bent;
S33arranging winches 14 at two ends of the traction cable 9, and driving the traction cable 9 to move by using the winches 14 to drive the new steel cable 11 to cross two banks;
S34fixing one end of the new steel cable 11 on the new anchor pile 2, and adjusting the sag of the new steel cable 11;
S35after the new steel cable 11 is sagged and tensioned to the designed sag, the other end of the new steel cable 11 is also fixed on the new anchor pile 2;
S36the rope end at one end of the old steel cable 4 is clamped on the traction rope 9, the old steel cable 4 is driven by the winch 14 to move for recycling, and all work can be completed only by dismantling the old bent frame 3, the old anchor pile and the like until the new steel cable 11 is completely erected.
In this embodiment, step S2Pulling the old steel cable 4 to the position between the new bent frames 1 to be overlapped with the position where the new steel cable 11 is erected, and connecting by using a traction ropeThe old steel cable 4 and the new steel cable 11 are used for erecting the new steel cable 11 and disassembling and recycling the old steel cable 4 through transfer of the hauling ropes, so that the difficulty of completely updating the cableway is effectively reduced, the channel is prevented from being occupied, and the updating speed of the cableway is greatly increased.
Specifically, the step S2The specific operation is as follows:
S21steel cable translation of the right bank
The tail end of a construction steel cable 5 is anchored on a new anchor pile 2 on a right bank, the rope head is clamped with an old steel cable 4 after turning over a rope supporting wheel at a new bent 1 on the right bank, certainly, the rope head can be clamped through a rope clamp when the rope head is clamped, wherein, the clamping condition of the construction steel cable 5 and the old steel cable 4 when two new bent 1 and old bent 3 are in position relation is respectively shown in figures 2 and 6;
as shown in fig. 3 and 4, the old anchor pile is used for releasing the sag of the old steel cable 4, the construction steel cable 5 is gradually tensioned by the combination of the hand chain hoist 8 and the pulley 7, the translation of the old steel cable 4 on the right bank is realized, and the translated situation is as shown in fig. 5 and 7;
S22left bank cable translation
Anchoring the tail end of the construction steel cable 5 on a new anchor pile 2 of the left bank, and enabling the rope head of the construction steel cable 5 to cross a rope supporting wheel at a new bent 1 of the left bank and then be clamped with an old steel cable 4;
the old anchor pile is used for releasing the sag of the old steel cable 4, and the construction steel cable 5 is gradually tensioned by the combination of the hand chain hoist 8 and the pulley 7, so that the translation of the old steel cable 4 on the left bank is realized.
Wherein, the step S2When the old steel cable 4 is connected with the new steel cable 11 in a clamped mode, workers are conveyed to one side, away from the bank, of the old anchor pile of the old bent frame 3 through the hanging basket 6 to operate, of the old anchor pile, the initial position and the length of the clamped mode need to be calculated according to the positions of the old bent frame 3 and the new bent frame 1, and therefore the included angle between the old steel cable 4 and the construction steel cable 5 is enabled to be formed<5 degrees is standard.
Wherein, as shown in FIG. 8, in step S31In the process, the traction rope 9 can be hung on the old steel cable 4 through the bearing horses 10 which are uniformly arranged, the arrangement distance of the bearing horses 10 can be set according to the actual situation, for example, one bearing horse is arranged every 40m, wherein the structure of the bearing horseAs shown in fig. 1; said step S32In the middle, the rope end of the new steel cable 11 is clamped with the traction rope after passing over the rope supporting wheel at the top of the new bent 1 and the first bearing horse 10 close to the new bent 1, a gravity rotator 12 is arranged between the rope supporting wheel of the new bent 1 and the first bearing horse 10 close to the new bent 1 and is arranged on the new steel cable 11, meanwhile, a heavy object with certain weight is hung on the bearing horse 10, the weight of the heavy object can be selected according to actual conditions, for example, 150kg, and the gravity rotator 12 can assist in releasing the twisting force of the new steel cable 11.
Further, as shown in fig. 9, the step S33In the process of unwinding the new wire rope 11, the bearing 10 is added at the rear and the bearing 10 is synchronously dismounted at the front along the moving direction of the new wire rope 11 to prepare for dismounting the old wire rope 4, of course, the arrow direction of fig. 9 indicates the moving direction of the sling 13.
Further, as shown in FIG. 10, the step S34In the process, after a new steel cable 11 is pulled in place, the rope head at the end of the new steel cable 11 is anchored on a new anchor pile 2, the traction rope on the opposite-bank winch 14 is taken down and temporarily anchored, meanwhile, the rope head of the new steel cable 11 is overturned over a rope supporting wheel of a new bent frame 1 and a guide wheel at the position of the new anchor pile 2 to be clamped with a movable pulley 16 of a pulley block, a fixed pulley 15 is clamped with the new bent frame 1, the movable pulley 16 is driven by the winch 14 to move, the verticality of the new steel cable 11 is improved, and the supporting horse 10 is overturned. Namely, the new steel cable 11 is pulled by the traction rope 9 to complete the erection of the new steel cable, the new steel cable and the old steel cable are controlled to sag, the reverse rotation of the support 10 is realized, the positions of the new steel cable 11 and the old steel cable 4 are exchanged, and the old steel cable 4 is pulled by the traction rope 9 to complete the recovery of the old steel cable 4.
Further, as shown in FIG. 11, the step S36In the process, rope heads at two ends of a traction rope 9 are wound on a winch 14, one end of an old steel rope 4 is clamped on the traction rope 9, a gravity rotator 12 is arranged at the rope head at the end of the old steel rope 4, a heavy object with certain weight is hung on a first bearing horse 10 close to the clamping position, the bearing horse 10 is synchronously detached in the process of recovering the old steel rope 4, and the detachment of the old steel rope 4 and the recovery of the traction rope 9 are completed.
The whole process of translating and replacing the steel cable is carried out in a hanging way, does not occupy the road and does not stop the navigation, thereby effectively reducing the difficulty of completely updating the cable channel, reducing the interference to the normal social order and greatly shortening the time for replacing the steel cable.
Of course, as shown in fig. 12, the tension of the empty rope can be calculated during the construction process according to the following formula to select a suitable winch:
Figure BDA0003329436540000081
Figure BDA0003329436540000082
wherein,
Figure BDA0003329436540000083
in the formula: f. of0-mid-span sag; gt-wire rope gravity;
beta-angle of penetration; smax-maximum pull;
H0-horizontal tension; vmx-fulcrum bearing reaction;
the above description is only a preferred embodiment of the present invention, and not intended to limit the present invention, the scope of the present invention is defined by the appended claims, and all structural changes that can be made by using the contents of the description and the drawings of the present invention are intended to be embraced therein.

Claims (8)

1. A construction method for translating and replacing a steel cable of a river-crossing cableway is characterized by comprising the following steps:
S1erecting a new bent frame and pouring a new anchor pile;
S2old wire rope translation: erecting a construction steel cable, enabling the construction steel cable to be clamped with the old steel cable after passing over a cable supporting wheel on the new bent, and driving the old steel cable to move horizontally towards the direction close to the new bent by using the construction steel cable;
S3wire rope replacement:
S31releasing the traction ropes crossing the two banks and hanging the traction ropes on the old steel cable;
S32the new steel cable is clamped with the traction cable after passing over the cable supporting wheel on the bent frame;
S33arranging winches at two ends of the traction cable, and driving the traction cable to move by using the winches to drive the new steel cable to cross two banks;
S34fixing one end of the new steel cable on the new anchor pile, and adjusting the sag of the new steel cable;
S35after the new steel cable sag is tensioned to the designed sag, the other end of the new steel cable is also fixed on the new anchor pile;
S36and clamping the rope head at one end of the old steel rope on the traction rope, and driving the old steel rope to move by using a winch for recovery.
2. The river-crossing cableway steel cable translation and replacement construction method according to claim 1, wherein the step S is carried out1In the middle, if a house is arranged between the new bent frame and the new anchor pile, scaffolds need to be erected on two sides of the house, and steel wire meshes are hung on the scaffolds for protection.
3. The river-crossing cableway steel cable translation and replacement construction method according to claim 1, wherein the step S is carried out2The specific operation is as follows:
S21steel cable translation of the right bank
The tail end of the construction steel cable is anchored on a new anchor pile on the right bank, and the rope head is clamped with the old steel cable after crossing a rope supporting wheel at a new bent on the right bank;
the sag of the old steel cable is released by using the old anchor pile, and the construction steel cable is gradually tensioned by using the combination of the chain block and the pulley, so that the translation of the old steel cable on the right bank is realized;
S22left bank cable translation
Anchoring the tail end of the construction steel cable on a new anchor pile of the left bank, and enabling the rope head of the construction steel cable to cross a rope supporting wheel at a new bent of the left bank and then be clamped with the old steel cable;
the sag of the old steel cable is released by using the old anchor pile, and the construction steel cable is gradually tensioned by using the combination of the hand chain hoist and the pulley, so that the translation of the old steel cable on the left bank is realized.
4. The river-crossing cableway steel cable translation and replacement construction method according to claim 3, wherein the step S is carried out2When the old steel cable is connected with the new steel cable in a clamping mode, workers are conveyed to one side, away from the bank, of the old anchor pile of the old bent frame through the hanging basket to operate, of the old steel cable, and an included angle between the old steel cable and the construction steel cable needs to be formed<5°。
5. The river-crossing cableway steel cable translation and replacement construction method according to claim 4, wherein the step S is carried out31The traction cable is hung on the old steel cable through the uniformly distributed support horses; said step S32And the rope end of the new steel rope is clamped with the traction rope after passing over the rope supporting wheel at the top of the new bent and the first bearing horse close to the new bent, a gravity rotator is arranged between the rope supporting wheel positioned on the new bent and the first bearing horse close to the new bent on the new steel rope, and meanwhile, a heavy object with proper weight is hung on the bearing horse at once.
6. The river-crossing cableway steel cable translation and replacement construction method according to claim 5, wherein the step S is carried out33In the process of unfolding and placing the new steel cable, a bearing horse is additionally arranged at the rear part and synchronously detached at the front part along the moving direction of the new steel cable.
7. The river-crossing cableway steel cable translation and replacement construction method according to claim 6, wherein the step S is carried out34In the process, after a new steel cable is pulled in place, the rope head at the end of the new steel cable is anchored on a new anchor pile, the traction rope on the opposite-shore winch is taken down, the traction rope is temporarily anchored, the rope head of the new steel cable is overturned over a new bent bracket rope wheel and a guide wheel at the position of the new anchor pile to be clamped with a movable pulley of a pulley group, the fixed pulley is clamped with the new bent bracket, the movable pulley is driven to move by using the winch, the sag of the new steel cable is improved, and the supporting horse is overturned.
8. The river-crossing cableway steel cable translation and replacement construction method according to claim 7, wherein the step S is carried out36In the process, rope ends at two ends of a traction rope are wound on a winch, one end of an old steel rope is clamped on the traction rope, a gravity rotator is installed at the rope end of the old steel rope, meanwhile, a first bearing close to the clamping position is hung with a heavy object with certain weight at once, and meanwhile, a bearing is synchronously detached in the process of recycling the old steel rope.
CN202111273219.5A 2021-10-29 2021-10-29 Construction method for translating and replacing steel rope of river-crossing cableway Active CN113815654B (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1079614A (en) * 1963-10-28 1967-08-16 Lorraine Escaut Sa An improved method of changing the carrying or traction cable of an aerial ropeway
CN201457370U (en) * 2009-09-07 2010-05-12 长沙有色冶金设计研究院 Ropeway rope replacing device
CN108660946A (en) * 2018-04-20 2018-10-16 武汉中交试验检测加固工程有限责任公司 A method of replacing suspension bridge main rope
CN113322834A (en) * 2021-04-15 2021-08-31 江苏法尔胜缆索有限公司 Method for replacing sling of suspension bridge through single-lifting-point tensioning
CN113371629A (en) * 2021-07-06 2021-09-10 余一霖 Method for replacing mutual-bearing steel wire rope

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1079614A (en) * 1963-10-28 1967-08-16 Lorraine Escaut Sa An improved method of changing the carrying or traction cable of an aerial ropeway
CN201457370U (en) * 2009-09-07 2010-05-12 长沙有色冶金设计研究院 Ropeway rope replacing device
CN108660946A (en) * 2018-04-20 2018-10-16 武汉中交试验检测加固工程有限责任公司 A method of replacing suspension bridge main rope
CN113322834A (en) * 2021-04-15 2021-08-31 江苏法尔胜缆索有限公司 Method for replacing sling of suspension bridge through single-lifting-point tensioning
CN113371629A (en) * 2021-07-06 2021-09-10 余一霖 Method for replacing mutual-bearing steel wire rope

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