A temporary support system for a hollow inclined cable saddle pier and its construction method

Abstract

The present application discloses a temporary support system for a hollow inclined cable saddle pier and a construction method thereof, which includes a diagonal bracing mechanism for connecting with a formwork; an anchoring mechanism for anchoring the diagonal bracing mechanism to the ground, the anchoring mechanism including an anchor pipe and a first driving assembly, the diameter of the anchor pipe being variably arranged, and the first driving assembly being used to drive the diameter of the anchor pipe to change. The present application has the effect of improving the construction efficiency of the cable saddle pier.

Description

Technical Field

[0001] The present application relates to the technical field of bridge construction, and in particular, to a temporary support system for a hollow inclined cable saddle pier and a construction method thereof. Background Technique

[0002] When constructing a suspension bridge, gravity anchorages need to be set on both sides of the riverbank or canyon to anchor the main cable. The gravity anchorage generally consists of an anchor block, a cable saddle pier, a front anchor chamber, and a cable saddle seat. Among them, the front anchor chamber is fixed on the anchor block, the cable saddle pier and the front anchor chamber form an octagonal structure, the cable saddle seat is arranged between the top of the cable saddle pier and the front anchor chamber, and the cable saddle is installed on the cable saddle seat. The main cable is divided into multiple strands after passing through the cable saddle and is anchored to the anchor block, thereby enhancing the compressive capacity of the main cable.

[0003] When constructing the gravity anchorage, the anchor block is constructed first, and then the construction of the cable saddle pier, the front anchor chamber, and the cable saddle seat is carried out synchronously. Since both the cable saddle pier and the front anchor chamber are inclined, when building the formwork support system, a floor full-bay support is mostly used for support. However, the installation and removal time of the floor full-bay support is long, which affects the construction efficiency. Summary of the Invention

[0004] In order to improve the construction efficiency of the gravity anchorage, the present application provides a temporary support system for a hollow inclined cable saddle pier and a construction method thereof.

[0005] A temporary support system for a hollow inclined cable saddle pier and a construction method thereof provided by the present application adopt the following technical solutions:

[0006] First aspect:

[0007] A temporary support system for a hollow inclined cable saddle pier, including a diagonal bracing mechanism for connecting with the formwork;

[0008] An anchoring mechanism for anchoring the diagonal bracing mechanism to the ground. The anchoring mechanism includes an anchor pipe and a first driving component, the diameter of the anchor pipe is variably arranged, and the first driving component is used to drive the diameter of the anchor pipe to change.

[0009] By adopting the above technical solution, when constructing the saddle pier of the cable spreading saddle in this application, it is only necessary to anchor the diagonal bracing mechanism to the ground by using the anchoring mechanism, and then build the formwork framework of the saddle pier of the cable spreading saddle on the diagonal bracing mechanism, with simple and efficient operation. Moreover, since the anchor pipe is driven into the soil layer, it can provide the supporting force for support, so that the diagonal bracing mechanism will not displace. At the same time, the diameter of the anchor pipe is set to be variable. Before driving the anchor pipe into the soil layer, the diameter of the anchor pipe is adjusted to the maximum by using the first driving component, and then the anchor pipe is driven into the soil layer. Because the diameter of the anchor pipe is large, the contact area between the anchor pipe and the soil layer is large, which is beneficial to improving the supportability. And when the formwork system is demolished later, it is only necessary to use the first driving component to reduce the diameter of the anchor pipe, and then the anchor pipe can be easily pulled out of the soil layer. Thus, it can be seen that the formwork system in this application is convenient for installation and demolition while maintaining good supportability, which is beneficial to improving the construction efficiency.

[0010] Preferably, the anchor pipe includes multiple pipe segments, and folding plates are hinged between adjacent two pipe segments; the first driving component includes a base and a driving rod, the driving rod penetrates through the base and is threadedly connected with the base, a movable ring is rotatably connected to the driving rod, connecting rods are hinged between the movable ring and each pipe segment, a blocking member is fixedly connected to one end of the driving rod extending into the anchor pipe, and the blocking member is used for blocking the lower opening of the anchor pipe; a driving block is fixedly connected to the upper end of the driving rod, and when the driving block moves to abut against the upper surface of the base, the folding plates are flattened.

[0011] By adopting the above technical solution, when it is necessary to increase the diameter of the anchor pipe, rotate the driving rod to make the driving rod move downward relative to the base, so that multiple pipe segments expand synchronously, and the folding plates gradually unfold under the pulling action of the pipe segments. When the driving block abuts against the base, the folding plates are flattened, and the diameter of the anchor pipe changes to the maximum, and the surface of the anchor pipe is relatively smooth, which is convenient for driving the anchor pipe into the soil layer. At the same time, the blocking member blocks the lower opening of the anchor pipe, so that during the subsequent process of driving the anchor pipe into the soil layer, the soil will not pour into the inside of the anchor pipe, which is convenient for driving the anchor pipe into the soil layer.

[0012] Preferably, the anchoring mechanism further includes:

[0013] An anti-slip component, the anti-slip component includes a sleeve arranged in the anchor pipe, the sleeve is slidably sleeved on the driving rod, multiple groups of anti-slip members are arranged between the sleeve and each pipe segment, each anti-slip member includes a movable rod and a plug rod, one end of the movable rod is hinged to the sleeve, the other end of the movable rod is hinged to the plug rod, and the plug rod penetrates through the pipe segment and is slidably connected with the pipe segment;

[0014] A second driving component, the second driving component is used to drive the sleeve to move relative to the driving rod.

[0015] By adopting the above technical solution, since there is a horizontal component of the pressure on the anchor pipe, an anti-slip component is specially provided to enhance the anti-slip ability of the anchor pipe. After the anchor pipe is driven into the soil layer, the second driving component is used to drive the sleeve to move downward relative to the driving rod. The sleeve drives the inserting rod to move away from the axis of the anchor pipe through the movable rod, so that the inserting rod gradually inserts into the soil layer, thereby enhancing the anti-slip ability of the anchor pipe.

[0016] Preferably, the second driving component includes a plurality of fixing rods fixed on the upper surface of the sleeve. The other ends of the fixing rods penetrate through the base and are slidably connected with the base; the upper ends of the fixing rods are provided with external threads and are threadedly connected with locking nuts, and the locking nuts abut against the upper surface of the base.

[0017] By adopting the above technical solution, the fixing rod is locked on the base through the locking nut, so as to support the sleeve, so that the sleeve will not slide relative to the driving rod, and when the anchor pipe has not been inserted into the soil layer, the inserting rod will not separate from the segment. After the anchor pipe is driven into the soil layer, loosen the locking nut, and then, by knocking on the fixing rod, the sleeve can be driven to move downward, so that the inserting rod is inserted into the soil layer.

[0018] Preferably, a fixing ring is sleeved and fixed on the fixing rod. When the fixing ring abuts against the lower surface of the base, the end of the inserting rod away from the movable rod is inserted into the segment and the inserting rod does not protrude from the segment.

[0019] By adopting the above technical solution, when pulling out the inserting rod from the soil layer, just lift the fixing rod. When the fixing ring moves with the fixing rod to abut against the lower surface of the base, tighten the locking nut to lock the fixing rod, so that after the subsequent anchor pipe is pulled out of the soil layer, the sleeve will not move relative to the driving rod. Since the inserting rod remains inserted into the segment, it is convenient to reuse the anchoring mechanism.

[0020] Preferably, the anchoring mechanism further includes an auxiliary installation component. The auxiliary installation component includes a resisting plate. One side of the resisting plate is provided with a plurality of lifting rods. One of the lifting rods is provided with external threads. The lifting rod with external threads is rotatably connected with the resisting plate. One of the upper ends of the plurality of fixing rods is provided with a threaded hole, and the upper ends of the remaining fixing rods are all provided with insertion holes for the lifting rods to be inserted. The lifting rod with external threads is threadedly connected with the fixing rod provided with the threaded hole.

[0021] By adopting the above technical solution, since the diameter of the fixing rod is small, it is inconvenient to knock or pull out the fixing rod; therefore, an auxiliary installation component is specially provided. After the anchor pipe is driven into the soil layer, insert the lifting rod into the corresponding insertion hole, thread the lifting rod with external threads with the fixing rod provided with the threaded hole, and then knock on the resisting plate to drive the sleeve to move downward. When it is necessary to pull out the fixing rod, just pull out the resisting plate to drive the sleeve to move upward. Since the area of the resisting plate is much larger than the cross-sectional area of the fixing rod, it is convenient for construction.

[0022] Preferably, the diagonal bracing mechanism includes a bottom plate, through holes for the anchor pipes to pass through are formed in the bottom plate, the aperture of the through holes is not less than the maximum pipe diameter of the anchor pipes, a diagonal bracing rod is fixedly connected to the upper surface of the bottom plate, and the diagonal bracing rod is used for connecting with the formwork.

[0023] Second aspect:

[0024] A construction method for a temporary support system of a hollow inclined cable saddle pier, comprising the following steps:

[0025] S1. According to the designed construction positions of the cable saddle pier and the front anchor chamber, divide a number of formwork devices into two groups by using, the two groups of formwork devices are the first formwork unit and the second formwork unit respectively, the first formwork unit is used to support the formwork frame of the cable saddle pier, the second formwork unit is used to support the formwork frame of the front anchor chamber, and then use the anchoring mechanism to anchor the corresponding diagonal bracing mechanism to the ground;

[0026] S2. Build a support frame on the ground for supporting the formwork frame of the cable saddle seat;

[0027] S3. Build a transverse support rod between the first formwork unit and the second formwork unit;

[0028] S4. After the construction of the cable saddle pier, the front anchor chamber and the cable saddle seat is completed, remove the support frame, the transverse support rod and the diagonal bracing mechanism, and then pull out the anchoring mechanism from the soil layer to complete the construction.

[0029] By adopting the above technical solution, since the cable saddle pier, the front anchor chamber and the cable saddle seat are constructed synchronously, therefore, the formwork frame of the front anchor chamber is also supported by the formwork device in the present application, the construction is more convenient and efficient, and a transverse support rod can also be built between the first formwork unit and the second formwork unit to improve the formwork support capacity of the diagonal bracing mechanism, thereby being beneficial to improving the construction safety.

[0030] Preferably, in step S1, when anchoring the bottom plate to the ground by using the anchoring mechanism, first rotate the driving rod to drive a number of segments to expand synchronously until the pipe diameter of the anchor pipe is the largest, then pass the anchor pipe through the through hole on the bottom plate, and knock the driving block to drive the anchor pipe into the soil layer; then connect the auxiliary installation component with the fixed rod, then loosen the locking nut, and then knock the impact plate until the impact plate abuts against the driving block.

[0031] Preferably, in step S4, when disassembling the anchoring mechanism, first pull the impact plate to drive the fixed rod and the sleeve to move upward until the fixed ring abuts against the base, then tighten the locking nut, then reverse the driving rod to make a number of segments contract synchronously, and then pull out the anchoring mechanism from the anchor hole.

[0032] In summary, the present application includes at least one of the following beneficial technical effects:

[0033] 1. The present application supports the formwork frame of the cable saddle pier by setting a diagonal bracing mechanism and an anchoring mechanism, which can not only provide strong support force, but also facilitate installation and disassembly, thus contributing to improving construction efficiency.

[0034] 2. By setting an anti-slip component, the present application enhances the connection strength between the anchor pipe and the soil layer, enabling the anchor pipe to provide stable support for the diagonal bracing mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 is a schematic structural diagram of the support device in the present application;

[0036] Figure 2 is a schematic internal structure diagram of the anchoring mechanism in the present application;

[0037] Figure 3 is a schematic connection diagram of the auxiliary installation component and the second driving component in the present application;

[0038] Figure 4 is a schematic diagram of using the support device for the construction of the cable saddle pier.

[0039] DESCRIPTION OF REFERENCE NUMERALS:

[0040] 1, bottom plate; 2, diagonal bracing rod; 3, anchor pipe; 31, segment; 32, folding plate; 321, first folding part; 322, second folding part; 4, first driving component; 41, base; 42, driving rod; 43, driving block; 44, conical head; 45, movable ring; 46, limiting ring; 47, connecting rod; 5, anti-slip component; 51, sleeve; 52, anti-slip part; 521, movable rod; 522, inserting rod; 6, second driving component; 61, fixed rod; 62, locking nut; 63, fixed ring; 7, auxiliary installation component; 71, impact plate; 72, lifting rod; 8, cable saddle pier; 9, front anchor chamber; 10, cable saddle seat. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0041] The following further elaborates on the present application in conjunction with the attached Figures 1-4 drawings.

[0042] The embodiment of the present application discloses a temporary support system for a hollow inclined cable saddle pier. Referring to Figure 1 , a temporary support system for a hollow inclined cable saddle pier includes a plurality of formwork support devices, and each formwork support device includes a diagonal bracing mechanism for connecting with the formwork and an anchoring mechanism for anchoring the diagonal bracing mechanism to the ground.

[0043] Referring to Figure 1 , the diagonal bracing mechanism includes a bottom plate 1 and a diagonal bracing rod 2 bolted and locked to the bottom plate 1, and the diagonal bracing rod 2 is formed by splicing a plurality of steel pipes.

[0044] Referring to Figure 1 and Figure 2 Figure 2 , the anchoring mechanism includes an anchor pipe 3 and a first driving assembly 4. The diameter of the anchor pipe 3 is variably arranged, and the first driving assembly 4 is used to drive the diameter of the anchor pipe 3 to change. A through hole for the anchor pipe 3 to pass through is formed in the bottom plate 1, and the aperture of the through hole is not less than the maximum diameter of the anchor pipe 3. In the embodiment of the present application, the aperture of the through hole matches the maximum diameter of the anchor pipe 3.

[0045] The side wall of the lower end of the anchor pipe 3 is arranged with a wider upper part and a narrower lower part. The anchor pipe 3 includes a plurality of pipe segments 31. The plurality of pipe segments 31 evenly divide the anchor pipe 3. A folding plate 32 is hinged between adjacent two pipe segments 31, and the folding plate 32 seals the gap between adjacent two pipe segments 31. The folding plate 32 includes a first folding part 321 and a second folding part 322. Both the first folding part 321 and the second folding part 322 are formed by hinging two steel plates to each other. The first folding part 321 is used to seal the gap between the straight line segments of adjacent two pipe segments 31, and the second folding part 322 is used to seal the gap between the tapered segments of adjacent two pipe segments 31.

[0046] The first driving assembly 4 includes a base 41 and a driving rod 42. The base 41 is arranged in a disc shape, and the diameter of the base 41 is greater than the aperture of the through hole. The upper part of the driving rod 42 is provided with an external thread. The driving rod 42 penetrates through the base 41 and is threadedly connected with the base 41. The driving rod 42 is coaxially arranged with the base 41. A driving block 43 is fixedly connected to the upper end of the driving rod 42. The driving block 43 is arranged in a disc shape, and the diameter of the driving block 43 is greater than the diameter of the driving rod 42. A plugging member for plugging the lower end opening of the anchor pipe 3 is fixedly connected to the lower end of the driving rod 42. The plugging member is a tapered head 44. The large end of the tapered head 44 is fixedly connected with the driving rod 42. The small end of the tapered head 44 penetrates out of the lower end of the anchor pipe 3, and the side wall of the tapered head 44 abuts against the edge of the lower end opening of the anchor pipe 3. The taper of the tapered head 44 is smaller than the taper of the lower end of the anchor pipe 3, so as to provide space for the movement of the second folding part 322. A movable ring 45 is rotatably sleeved on the driving rod 42. Two limiting rings 46 are sleeved and fixed on the driving rod 42. The movable ring 45 is clamped between the two limiting rings 46. A connecting rod 47 is hinged between the movable ring 45 and the upper part of each pipe segment 31.

[0047] Rotate the driving block 43 to drive the driving rod 42, and the connecting rod 47 and the tapered head 44 synchronously follow the driving rod 42 to move downward so as to expand the anchor pipe 3. When the driving block 43 moves to abut against the upper surface of the base 41, the connecting rod 47 is horizontally arranged, the tapered head 44 plugs the lower end opening of the anchor pipe 3, and the folding plate 32 is flattened. At this time, the diameter of the anchor pipe 3 is the largest.

[0048] The anchoring mechanism further includes an anti-slip component 5, a second driving component 6, and an auxiliary installation component 7. The anti-slip component 5 is used to enhance the connection strength between the anchor pipe 3 and the soil layer to enhance the anti-slip ability of the anchor pipe 3. The second driving component 6 is used to control the operation of the anti-slip component 5, and the auxiliary installation component 7 is used to cooperate with the second driving component 6 to control the operation of the anti-slip component 5.

[0049] Specifically, the anti-slip component 5 includes a sleeve 51 arranged inside the anchor pipe 3. The sleeve 51 is slidably sleeved on the driving rod 42, and multiple groups of anti-slip members 52 are arranged between the sleeve 51 and each segment 31. The anti-slip member 52 includes a movable rod 521 and an inserting rod 522. One end of the movable rod 521 is hinged to the sleeve 51, and the other end of the movable rod 521 is hinged to the inserting rod 522. The inserting rod 522 penetrates through the segment 31 and is slidably connected to the segment 31. When the diameter of the anchor pipe 3 changes to the maximum, the end of the inserting rod 522 away from the movable rod 521 is inserted into the segment 31 and the inserting rod 522 does not protrude from the segment 31.

[0050] The second driving component 6 includes multiple fixing rods 61 fixed on the upper surface of the sleeve 51. In the embodiment of the present application, there are four fixing rods 61. The four fixing rods 61 are circumferentially distributed on the sleeve 51 with the axis of the sleeve 51 as the center. The axis of the fixing rod 61 is parallel to the axis of the sleeve 51. The end of the fixing rod 61 away from the sleeve 51 penetrates through the base 41 and is slidably connected to the base 41. The upper end of the fixing rod 61 is provided with an external thread and is threadedly connected with a locking nut 62. The locking nut 62 abuts against the upper surface of the base 41. A fixing ring 63 is sleeved and fixed on the fixing rod 61. When the fixing ring 63 abuts against the lower surface of the base 41, the end of the inserting rod 522 away from the movable rod 521 is inserted into the segment 31 and the inserting rod 522 does not protrude from the segment 31.

[0051] Referring to Figure 2 and Figure 3 , the auxiliary installation component 7 includes a resisting plate 71. The resisting plate 71 is arranged in a disc shape. Multiple lifting rods 72 are arranged on one side of the resisting plate 71. In the embodiment of the present application, there are four lifting rods 72. The four lifting rods 72 are circularly distributed on the resisting plate 71 with the axis of the resisting plate 71 as the center, and the four lifting rods 72 correspond to the fixing rods 61 one by one. One of the lifting rods 72 is provided with an external thread. The lifting rod 72 provided with the external thread is rotatably connected to the resisting plate 71 through a bearing. One of the upper ends of the multiple fixing rods 61 is provided with a threaded hole, and the upper ends of the remaining fixing rods 61 are all provided with insertion holes for the lifting rods 72 to be inserted. The depth of the threaded hole is the same as the depth of the insertion hole. The lifting rod 72 provided with the external thread is threadedly connected to the fixing rod 61 provided with the threaded hole. When the lifting rod 72 is inserted into the fixing rod 61, there is a distance between the resisting plate 71 and the driving block 43. When the resisting plate 71 moves to abut against the driving block 43, the movable rod 521 is horizontally arranged.

[0052] The embodiment of the present application discloses a construction method for a temporary support system of a hollow inclined cable saddle pier, referring to Figures 1-4 , which includes the following steps:

[0053] S1. According to the designed construction positions of the cable saddle pier 8 and the front anchor chamber 9, several formwork devices are divided into two groups by using. The two groups of formwork devices are the first formwork unit and the second formwork unit respectively. The first formwork unit is used to support the formwork framework of the cable saddle pier 8, and the second formwork unit is used to support the formwork framework of the front anchor chamber 9. Then, the corresponding inclined support mechanism is anchored to the ground by using the anchoring mechanism, so that the inclined support rods 2 located on the first formwork unit and the second formwork unit are distributed in an inverted V shape.

[0054] When using the anchoring mechanism to anchor the corresponding inclined support mechanism to the ground, according to the construction drawings, the bottom plate 1 is placed at the corresponding position, and then the driving block 43 is rotated to drive the driving rod 42 to move downward. The downward movement of the driving rod 42 drives several segments 31 to expand synchronously. When the driving block 43 abuts against the top of the base 41, the rotation of the driving block 43 is stopped. At this time, the diameter of the anchor pipe 3 is the largest. Then, the anchor pipe 3 is passed through the through hole on the bottom plate 1, and the anchor pipe 3 is rotated so that the included angle between the insertion rod 522 and the axis of the inclined support rod 2 is 30° - 60°. The embodiment of the present application preferably uses 45°. Then, the driving block 43 is knocked to drive the anchor pipe 3 into the soil layer. Then, the lifting rod 72 is connected to the fixed rod 61, and then the locking nut 62 is loosened. After that, the impact plate 71 is knocked until the impact plate 71 abuts against the driving block 43. At this time, the insertion rod 522 is inserted into the soil layer, thereby enhancing the anti-slip ability of the anchor pipe 3.

[0055] S2. A support frame for supporting the formwork framework of the cable saddle 10 is built on the ground.

[0056] S3. A transverse support rod is built between the first formwork unit and the second formwork unit, and the transverse support rod and the inclined support rod 2 are tightly connected by fasteners.

[0057] S4. After the construction of the cable saddle pier 8, the front anchor chamber 9 and the cable saddle 10 is completed, the support frame, the transverse support rod and the inclined support mechanism are removed, and then the anchoring mechanism is pulled out from the soil layer to complete the construction.

[0058] When removing the anchoring mechanism, first pull the impact plate 71 until the limit ring 46 abuts against the base 41. During this period, the upward movement of the impact plate 71 drives the fixed rod 61 and the sleeve 51 to move upward, thereby pulling the insertion rod 522 out of the soil layer. Then, the locking nut 62 is tightened to lock the fixed rod 61 and the base 41. Then, the driving block 43 is reversed to drive the driving rod 42 to move upward. The upward movement of the driving rod 42 causes several segments 31 to contract synchronously. After that, the anchoring mechanism can be pulled out from the anchor hole.

[0059] The implementation principle of the embodiments of this application is as follows: By arranging the diagonal bracing mechanism and the anchoring mechanism to support the formwork frame of the cable saddle pier 8, this application can not only provide strong support force, but also facilitate installation and disassembly, thus helping to improve the construction efficiency. In addition, an anti-slip component 5 is provided on the anchor pipe 3 to enhance the connection strength between the anchor pipe 3 and the soil layer, improve the support performance of the anchor pipe 3, and thus contribute to improving safety and construction efficiency.

[0060] The above are all the preferred embodiments of this application. The protection scope of this application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A temporary support system for a hollow inclined cable saddle pier, characterized in that: It includes several groups of formwork support devices, and the formwork support devices include: An inclined strut mechanism for connecting with the formwork; An anchoring mechanism for anchoring the inclined strut mechanism to the ground. The anchoring mechanism includes an anchor pipe (3) and a first driving component (4). The diameter of the anchor pipe (3) is variably arranged. The first driving component (4) is used to drive the diameter of the anchor pipe (3) to change. The anchor pipe (3) includes multiple pipe segments (31). The anchoring mechanism further includes: an anti-slip component (5). The anti-slip component (5) includes a sleeve (51) arranged inside the anchor pipe (3). The first driving component (4) includes a base (41) and a driving rod (42). The sleeve (51) is slidably sleeved on the driving rod (42). Multiple groups of anti-slip members (52) are arranged between the sleeve (51) and each pipe segment (31). The anti-slip member (52) includes a movable rod (521) and an inserting rod (522). One end of the movable rod (521) is hinged to the sleeve (51), and the other end of the movable rod (521) is hinged to the inserting rod (522). The inserting rod (522) penetrates the pipe segment (31) and is slidably connected to the pipe segment (31).

2. A temporary support system for a hollow inclined cable saddle pier according to claim 1, characterized in that: A folding plate (32) is hinged between adjacent two pipe segments (31); the driving rod (42) penetrates the base (41) and is threadedly connected to the base (41). A movable ring (45) is rotatably connected to the driving rod (42). A connecting rod (47) is hinged between the movable ring (45) and each pipe segment (31). One end of the driving rod (42) extending into the anchor pipe (3) is fixedly connected with a blocking member for blocking the lower opening of the anchor pipe (3); the upper end of the driving rod (42) is fixedly connected with a driving block (43). When the driving block (43) moves to abut against the upper surface of the base (41), the folding plate (32) is flattened.

3. A temporary support system for a hollow inclined cable saddle pier according to claim 2, characterized in that: The anchoring mechanism further includes: A second driving component (6) for driving the sleeve (51) to move relative to the driving rod (42).

4. A temporary support system for a hollow inclined cable saddle pier according to claim 3, characterized in that: The second driving component (6) includes multiple fixing rods (61) fixed on the upper surface of the sleeve (51). The other ends of the fixing rods (61) penetrate the base (41) and are slidably connected to the base (41); external threads are provided at the upper ends of the fixing rods (61) and are threadedly connected with locking nuts (62). The locking nuts (62) abut against the upper surface of the base (41).

5. A temporary support system for a hollow inclined cable saddle pier according to claim 4, characterized in that: A fixing ring (63) is sleeved and fixed on the fixing rod (61). When the fixing ring (63) abuts against the lower surface of the base (41), the end of the inserting rod (522) away from the movable rod (521) is inserted into the segment (31) and the inserting rod (522) does not protrude from the segment (31).

6. A temporary support system for a hollow inclined cable saddle pier according to claim 4, characterized in that: The anchoring mechanism further includes an auxiliary installation component (7). The auxiliary installation component (7) includes a resisting plate (71). A plurality of lifting rods (72) are arranged on one side of the resisting plate (71). One of the lifting rods (72) is provided with an external thread. The lifting rod (72) with the external thread is rotatably connected to the resisting plate (71). A screw hole is formed at the upper end of one of the plurality of fixing rods (61), and insertion holes for the lifting rods (72) to be inserted are formed at the upper ends of the remaining fixing rods (61). The lifting rod (72) with the external thread is threadedly connected to the fixing rod (61) with the screw hole formed therein.

7. A temporary support system for a hollow inclined cable saddle pier according to claim 1, characterized in that: The inclined strut mechanism includes a bottom plate (1). A through hole for the anchor pipe (3) to pass through is formed in the bottom plate (1). The diameter of the through hole is not less than the maximum pipe diameter of the anchor pipe (3). A diagonal strut (2) is fixedly connected to the upper surface of the bottom plate (1). The diagonal strut (2) is used for connecting with the formwork.

8. A construction method for a temporary support system for a hollow inclined cable saddle pier according to any one of claims 1-7, characterized in that: It includes the following steps: S1. According to the designed construction positions of the cable saddle pier (8) and the front anchor chamber (9), divide a number of formwork devices into two groups. The two groups of formwork devices are the first formwork unit and the second formwork unit respectively. The first formwork unit is used to support the formwork framework of the cable saddle pier (8), and the second formwork unit is used to support the formwork framework of the front anchor chamber (9). Then use the anchoring mechanism to anchor the corresponding inclined strut mechanism to the ground; S2. Build a support frame on the ground for supporting the formwork framework of the cable saddle (10); S3. Build a transverse support rod between the first formwork unit and the second formwork unit; S4. After the construction of the cable saddle pier (8), the front anchor chamber (9) and the cable saddle (10) is completed, remove the support frame, the transverse support rod and the inclined strut mechanism, and then pull out the anchoring mechanism from the soil layer to complete the construction.

9. A construction method for a temporary support system for a hollow inclined cable saddle pier according to claim 8, characterized in that: In step S1, when using the anchoring mechanism to anchor the bottom plate (1) to the ground, first rotate the driving rod (42) to drive a number of segments (31) to expand synchronously until the pipe diameter of the anchor pipe (3) is the largest, and then pass the anchor pipe (3) through the through hole on the bottom plate (1), and knock the driving block (43) to drive the anchor pipe (3) into the soil layer; then connect the auxiliary installation component (7) to the fixing rod (61), then loosen the locking nut (62), and then knock the resisting plate (71) until the resisting plate (71) abuts against the driving block (43).

10. The construction method of a temporary support system for a hollow inclined cable saddle pier according to claim 9, characterized in that: In step S4, when disassembling the anchoring mechanism, first pull out the impact-resistant plate (71) to drive the fixing rod (61) and the sleeve (51) to move upward until the fixing ring (63) abuts against the base (41), then tighten the locking nut (62), then reverse the driving rod (42) to synchronously contract multiple segments (31), and then pull out the anchoring mechanism from the anchor hole.

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