Plateau canyon large-span railway suspension bridge cable crane anchorage structure

Abstract

The utility model provides a plateau canyon large-span railway suspension bridge cable crane anchorage structure which comprises an anchorage arranged in a tunnel anchor hole and provided with a first embedded part used for being connected with a main cable strand and a second embedded part used for being connected with a bearing cable. And the foundation base is arranged in the tunnel anchor hole, and the upper surface of the foundation base is provided with a splay cable saddle used for supporting the main cable strand and a steering cable saddle used for changing the extension direction of the bearing cable. Thus, by arranging the first embedded part and the second embedded part on the anchorage, the main cable strand and the bearing cable can be installed and fixed in the tunnel anchor hole at the same time, the anchoring position of the bearing cable is changed, the construction steps needed for anchoring the bearing cable are effectively reduced, the construction period is shortened, and the overall construction efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of bridge construction technology, especially relate to a highland gorge large span railway suspension bridge cable crane anchor structure. BACKGROUND

[0002] Suspension bridge steel truss installation adopts cable crane or cable load crane, cable crane can go on its back, is less affected by topography and water area condition, has obtained more extensive application, simultaneously, because cable crane design load is big, safety reserve requirement is high, leads to cable crane anchor construction engineering quantity, construction period is long and anchor excavation is disturbed and destroyed to main body side slope, causes the area of the required protection of side slope to increase, seriously influence construction efficiency. CONTENT

[0003] Therefore, the utility model aims at providing a highland gorge large span railway suspension bridge cable crane anchor structure to improve the overall construction efficiency and at least partially solve the problems in the related art.

[0004] To achieve the above-mentioned purpose, the technical scheme of the utility model is as follows:

[0005] A highland gorge large span railway suspension bridge cable crane anchor structure, comprising:

[0006] An anchor is arranged in a tunnel anchor hole and has a first embedded part for connecting a main cable strand and a second embedded part for connecting a load-bearing cable;

[0007] A foundation base is arranged in the tunnel anchor hole and has an upper surface of the foundation base mounted with a cable spreader for supporting the main cable strand and a turning cable saddle for changing the extension direction of the load-bearing cable.

[0008] Further, the foundation base is further provided with a first mounting part for connecting a hoisting cable on the end face of the tunnel anchor hole.

[0009] Further, the foundation base is further provided with a second mounting part for connecting a traction cable on the end face of the tunnel anchor hole, and the first mounting part and the second mounting part are arranged adjacent to each other.

[0010] Further, the hoisting cable is provided with a first turning wheel for changing the extension direction of the hoisting cable at one end away from the foundation base.

[0011] Further, the first turning wheel is arranged at the opening position of the tunnel anchor hole.

[0012] Further, the traction cable is provided with a second turning wheel for changing the extension direction of the traction cable at one end away from the foundation base.

[0013] Further, the second steering wheel is arranged at the opening position of the tunnel anchor hole.

[0014] Further, the first embedded part and the second embedded part are arranged adjacently and have an avoiding gap between the first embedded part and the second embedded part.

[0015] By the above technical solution, the first embedded part and the second embedded part are arranged on the anchor, the main cable strand and the load bearing cable can be simultaneously installed and fixed in the tunnel anchor hole, the anchoring position of the load bearing cable is changed, the construction steps required for anchoring the load bearing cable are effectively reduced, the construction period is saved, the overall construction efficiency is improved, and meanwhile, the steering cable saddle arranged on the foundation base can change the extension direction of the load bearing cable, the laying path of the load bearing cable is flexibly adjusted in the construction process, and the load bearing cable is prevented from interfering with the main cable strand. BRIEF DESCRIPTION OF DRAWINGS

[0016] The accompanying drawings, which form a part of this description, are included to provide a further understanding of the application. The embodiments of the application and its

[0017] Figure 1 is a structural schematic view of the anchor structure as a whole provided in the exemplary embodiment of the present disclosure;

[0018] Figure 2 is a structural schematic view of the anchor structure as a whole provided in the exemplary embodiment of the present disclosure; Figure 1 is a sectional schematic view of the A-A position in FIG. 1;

[0019] Figure 3 is a sectional schematic view of the B-B position in FIG. 1. Figure 1

[0020] Explanation of reference signs:

[0021] 1, anchor; 101, first embedded part; 102, second embedded part; 103, avoiding gap; 2, main cable strand; 3, load bearing cable; 4, foundation base; 401, first mounting part; 402, second mounting part; 5, cable saddle; 6, steering cable saddle; 7, first steering wheel; 8, second steering wheel; 9, hoisting cable; 10, traction cable. DETAILED DESCRIPTION

[0022] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0023] ​In the description of the utility model, need understanding is, the term "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "internal", "external" and so on indicate the orientation or positional relation based on the orientation or positional relation shown in the drawing, just is for the convenience of describing the utility model and simplifying the description, and is not indicate or imply the device or element indicated must have a particular orientation, with a particular orientation structure and operation, therefore cannot be understood as the restriction of the utility model. In addition, the term "first", "second" and so on are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" and so on can explicitly or implicitly include one or more features. In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more than two.

[0024] In the description of the utility model, it needs to be explained that, unless otherwise expressly provided and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integrally connected, can be mechanical connection, can also be electrical connection, can be directly connected, can also be indirectly connected through intermediate medium, can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood through specific circumstances.

[0025] The utility model will be described in detail below with reference to the drawings and in combination with embodiments.

[0026] In the related art, as a special form of bridge, the installation of the steel truss girder, the main cable strand and the supporting structure of the suspension bridge usually involves complex hoisting operations. During hoisting construction, as the main load-bearing part of the bridge deck system, the steel truss girder must be ensured to be stable and safe through precise installation operation, that is, in actual installation operation, a cable crane is usually selected to perform corresponding hoisting operation. The cable crane can move the hoisted object along the hoist track during hoisting, so as to realize weight walking, which means that the cable crane itself does not need to rely too much on the ground supporting structure, but distributes the load to the surrounding environment through the load bearing cable. In order to ensure the stability of the cable crane, the load bearing cable of the cable crane needs to be fixed through a solid anchorage system. However, the anchorage for fixing the load bearing cable is usually installed in the slope or rock mass. During excavation and installation, the soil or rock layer of the slope needs to be developed on a large scale, which not only increases the risk of environmental damage, but also may affect the stability of the surrounding area. Especially in the case of a fragile slope, large-scale construction disturbance may cause safety problems such as landslides and collapses. In order to ensure the stability of the slope, the slope also needs to be protected by means of support, protective net and other tools after the construction of the slope is completed, which not only prolongs the overall construction period, but also increases the construction cost.

[0027] Therefore, in the specific embodiments provided in the present disclosure, a highland canyon long-span railway suspension bridge cable crane anchorage structure is provided. As shown in Figures 1 to 3 The highland canyon long-span railway suspension bridge cable crane anchorage structure includes an anchorage 1 and a foundation base 4. The anchorage 1 is arranged in the tunnel anchorage hole and has a first embedded part 101 for connecting the main cable strand 2 and a second embedded part 102 for connecting the load bearing cable 3. The foundation base 4 is arranged in the tunnel anchorage hole, and the upper surface of the foundation base 4 is provided with a spreader saddle 5 for supporting the main cable strand 2 and a turning cable saddle 6 for changing the extension direction of the load bearing cable 3.

[0028] Through the above technical solution, the first embedded part 101 and the second embedded part 102 are arranged on the anchorage 1, so that the main cable strand 2 and the load bearing cable 3 can be simultaneously installed and fixed in the tunnel anchorage hole. The anchoring position of the load bearing cable 3 is changed, the construction steps required for anchoring the load bearing cable 3 are effectively reduced, the construction period is saved, and the overall construction efficiency is improved. At the same time, the turning cable saddle 6 arranged on the foundation base 4 can change the extension direction of the load bearing cable 3, flexibly adjust the laying path of the load bearing cable 3 during construction, and avoid the interference between the load bearing cable 3 and the main cable strand 2.

[0029] The turning rope saddle 6 provided on the base 4 can change the extension direction of the load bearing cable 3 of the cable crane, so that the load bearing cable 3 and the main cable strand 2 do not interfere with each other. If the load bearing cable 3 and the main cable strand 2 interfere with each other, the tension between the load bearing cable 3 and the main cable strand 2 may be unbalanced. If the load bearing cable 3 and the main cable strand 2 do not interfere with each other, the load bearing cable 3 and the main cable strand 2 can independently and stably bear their respective loads, thereby maintaining the stability of the entire bridge system. In addition, if the load bearing cable 3 and the main cable strand 2 cross or contact each other, long-term friction may cause material wear or even damage to the load bearing cable 3 and the main cable strand 2, which not only increases the cost of maintenance and replacement, but also may cause more serious safety hazards. Maintaining a proper distance between the load bearing cable 3 and the main cable strand 2 can effectively prolong the service life of the cable equipment.

[0030] In some embodiments, with reference to Figures 1 to 3 As shown, the first embedded part 101 is provided adjacent to the second embedded part 102, and the first embedded part 101 and the second embedded part 102 have a clearance gap 103 therebetween. Since the first embedded part 101 and the second embedded part 102 have the clearance gap 103 therebetween, direct contact and friction between the main cable strand 2 and the load bearing cable 3 can be avoided, thereby reducing metal wear or damage caused by friction. In addition, by providing the clearance gap 103, the adjustment space between the main cable strand 2 and the load bearing cable 3 is increased during installation, and the first embedded part 101 and the second embedded part 102 can be more accurately positioned and connected by the construction personnel, thereby avoiding problems such as rework caused by installation errors.

[0031] In some embodiments, the load bearing cable 3, the hoisting cable 9, and the traction cable 10 are three key cable equipments in the cable crane, which respectively bear different functions and work cooperatively to ensure the smoothness and safety of the hoisting process. The load bearing cable 3 is used to support and bear the main weight of the hoisted object (such as a steel truss girder, a cable, etc.) during the bridge installation process. The hoisting cable 9 cooperates with the load bearing cable 3, and the function of the hoisting cable 9 is to lift or raise the hoisted object, especially in large hoisting equipment, the hoisting cable 9 plays a core role by pulling the hoisted object to gradually raise it and finally position it to the predetermined position. The traction cable 10 is used to maintain the directional movement of the cable crane, and through the tension of the traction cable 10, the cable crane can overcome external factors such as terrain changes and gravity, to ensure the smooth progress of the hoisting operation.

[0032] In some embodiments, with reference to Figure 1 and Figure 2As shown, the first mounting member 401 is used to connect the hoisting cable 9, so that one end of the hoisting cable 9 is connected in the tunnel anchor hole, and the hoisting cable 9 is used to hoist heavy objects, support steel truss beams and other important structures during the construction of the suspension bridge. By arranging the first mounting member 401 on the end face of the foundation base 4 close to the tunnel anchor hole, the hoisting cable 9 can be reliably fixed and supported, so that the hoisting operation becomes more stable and efficient, that is, the first mounting member 401 provides a firm fixing point for the hoisting cable 9, thereby ensuring the smooth progress of the hoisting operation and preventing the hoisting cable 9 from falling off, slipping or being damaged during hoisting.

[0033] Meanwhile, referring to Figure 2 As shown, the second mounting member 402 is arranged on the end face of the foundation base 4 close to the tunnel anchor hole to connect the traction cable 10, and the first mounting member 401 and the second mounting member 402 are arranged adjacent to each other. Arranging the first mounting member 401 and the second mounting member 402 adjacent to each other helps to optimize the spatial layout, so that the arrangement between the traction cable 10 and the hoisting cable 9 is more compact, achieving the purpose of connecting and fixing the traction cable 10 and the hoisting cable 9 in limited space, and eliminating space waste as much as possible.

[0034] In addition, the adjacent arrangement of the first mounting member 401 and the second mounting member 402 facilitates the coordination of the hoisting cable 9 and the traction cable 10. Although the hoisting cable 9 and the traction cable 10 undertake different tasks (one is responsible for lifting; one is responsible for traction, thereby maintaining the directional movement of the cable crane) during the entire hoisting process, the hoisting cable 9 and the traction cable 10 need to work synchronously during hoisting. By arranging the hoisting cable 9 and the traction cable 10 adjacent to each other, the cooperation between the two during hoisting can be more accurate, avoiding operational incoordination caused by deviation of the installation position. At the same time, the adjacent arrangement of the first mounting member 401 and the second mounting member 402 can ensure that the mechanical actions of the traction cable 10 and the hoisting cable 9 cooperate with each other, maximally reducing uneven or misaligned loads, and ensuring the stability of hoisting.

[0035] In some embodiments, referring to Figure 1 As shown, the end of the hoisting cable 9 away from the foundation base 4 is provided with a first deflection wheel 7 for changing the extension direction of the hoisting cable 9, and the first deflection wheel 7 is arranged at the opening position of the tunnel anchor hole, that is, the extension direction of the hoisting cable 9 can be changed through the first deflection wheel 7, so that the hoisted object can be lifted along the required trajectory, improving the accuracy and safety of construction. At the same time, the arrangement of the first deflection wheel 7 can also effectively prevent the hoisting cable 9 and the bearing cable 3 from interfering with each other, improving the hoisting stability.

[0036] Meanwhile, the first steering wheel 7 arranged at the opening position of the tunnel anchor hole facilitates the regular inspection and maintenance of the tunnel anchor hole by the staff.

[0037] In some embodiments, reference is made to Figure 1 As shown, the end of the traction cable 10 away from the base 4 is provided with a second steering wheel 8 for changing the extension direction of the traction cable 10, and the second steering wheel 8 is arranged at the opening position of the tunnel anchor hole, that is, the second steering wheel 8 arranged at the opening position can ensure that the traction cable 10 can change direction smoothly and flexibly during hoisting, avoiding the instability of the crane due to inaccurate direction or uneven traction force. Meanwhile, by adjusting the extension direction of the traction cable 10 through the second steering wheel 8, the traction force can be evenly distributed, avoiding uneven traction force or excessive tension concentration, and ensuring that the crane can move smoothly in complex terrain or construction environment.

[0038] For example, the arrangement of the first steering wheel 7 and the second steering wheel 8 can ensure that the hoisted object and the crane are always in a stable state during hoisting, avoiding safety hazards caused by excessive tension, poor angle and other factors. By changing the extension direction of the traction cable 10 and the hoisting cable 9, the personal safety of the staff can be ensured as much as possible.

[0039] For example, arranging the first steering wheel 7 and the second steering wheel 8 at the opening position can prevent the limited space in the tunnel anchor hole from being occupied, and the staff can more reasonably plan the space in the tunnel anchor hole, so that the layout of the whole device is more reasonable.

[0040] Those skilled in the art will understand that the above discussion of any embodiment is only exemplary and is not intended to limit the scope of the disclosure (including the claims) to these examples; the above embodiments or technical features in different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes of different aspects of the present application as described above. In order to be brief, they are not provided in detail.

[0041] The embodiments of the present application are intended to cover all such alternatives, modifications and variations falling within the broad scope of the appended claims. Therefore, any omission, modification, equivalent replacement, improvement, etc. made in the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A high plateau canyon long span railway suspension bridge cable hoisting anchor anchorage structure, characterized in that, Comprising: an anchor (1) disposed in a tunnel anchor hole and having a first embedded part (101) for connecting a main cable strand (2) and a second embedded part (102) for connecting a load bearing cable (3); a foundation base (4) disposed in the tunnel anchor hole and having an upper surface of the foundation base (4) mounted with a fairlead (5) for supporting the main cable strand (2) and a turning fairlead (6) for changing an extension direction of the load bearing cable (3).

2. The highland gorge long-span railway suspension bridge cable hoisting anchor anchorage structure according to claim 1, characterized in that: The foundation base (4) is further provided with a first mounting part (401) for connecting a hoisting cable (9) on an end face of the foundation base (4) close to a hole opening side of the tunnel anchor hole.

3. The high plateau gorge long span railway suspension bridge cable hoisting anchor anchorage structure according to claim 2, characterized in that: The foundation base (4) is further provided with a second mounting part (402) for connecting a pulling cable (10) on an end face of the foundation base (4) close to the hole opening side of the tunnel anchor hole, and the first mounting part (401) and the second mounting part (402) are disposed adjacently.

4. The high plateau gorge long span railway suspension bridge cable hoisting anchor anchorage structure according to claim 2, characterized in that: An end of the hoisting cable (9) away from the foundation base (4) is mounted with a first turning wheel (7) for changing an extension direction of the hoisting cable (9).

5. The high plateau gorge long span railway suspension bridge cable hoisting anchor anchorage structure according to claim 4, characterized in that: The first turning wheel (7) is disposed at a hole opening position of the tunnel anchor hole.

6. The high plateau gorge long span railway suspension bridge cable hoisting anchor anchorage structure according to claim 3, characterized in that: An end of the pulling cable (10) away from the foundation base (4) is mounted with a second turning wheel (8) for changing an extension direction of the pulling cable (10).

7. The high-elevation canyon long-span railway suspension bridge cable hoisting anchor anchorage structure according to claim 6, characterized in that: The second turning wheel (8) is disposed at the hole opening position of the tunnel anchor hole.

8. The high plateau gorge long span railway suspension bridge cable hoisting anchor anchorage structure according to claim 1, characterized in that: The first embedded part (101) and the second embedded part (102) are disposed adjacently and have an avoiding gap (103) between the first embedded part (101) and the second embedded part (102).

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