Steel tube concrete arch bridge arch support large angle inclined pile guide arch pouring device and construction method

Abstract

The application relates to the field of bridge construction, in particular to a large-angle inclined pile guide arch pouring device for a concrete-filled steel tube arch bridge abutment and a construction method, which comprises a rock groove, a guide arch foundation and a shaped steel formwork. The rock groove is arranged on a rock wall, the guide arch foundation is arranged at the bottom of the rock groove, the shaped steel formwork is arranged at the groove opening of the rock groove, an anchor rod is arranged between the shaped steel formwork and the sidewall of the rock groove, one end of the anchor rod is fixedly connected with the sidewall of the rock groove, the other end is fixedly connected with the shaped steel formwork, an attached vibrator is arranged on the shaped steel formwork, the attached vibrator is used for vibrating the concrete poured in the shaped steel formwork, a pouring opening is arranged at the bottom of the arch of the shaped steel formwork, a slurry outlet is arranged at the top of the arch of the shaped steel formwork, the pouring opening is used for pouring the concrete into the rock groove, and the slurry outlet is used for discharging the slurry in the rock groove, so that the construction progress of the inclined pile guide arch is accelerated.

Description

TECHNICAL FIELD

[0001] The application relates to the field of bridge construction, in particular to a large-angle inclined pile guide arch pouring device for a concrete-filled steel tube arch bridge abutment and a construction method. BACKGROUND

[0002] At present, the abutment foundation of the deck-type concrete-filled steel tube arch bridge adopts an inclined rectangular bearing platform connected with an inclined pile foundation, a single abutment is provided with a bearing platform and a root inclined pile foundation in the transverse direction, the bearing platform adopts a rectangular section, the inclined pile foundation adopts a semi-circular end semi-rectangular section with a semi-circular top end, and a reinforced concrete guide arch is arranged for the inclined pile guide arch, and the guide arch needs to be arranged before the inclined pile enters the hole to ensure safety.

[0003] The existing reinforced concrete guide arch of the inclined pile is usually supported by full-frame supports or a trolley for formwork pouring operation.

[0004] The prior art in the above has the following defects: because the guide arch of the inclined pile is arranged obliquely, it is difficult to set up full-frame supports or use a trolley, resulting in slow construction progress. SUMMARY

[0005] The application provides a large-angle inclined pile guide arch pouring device for a concrete-filled steel tube arch bridge abutment and a construction method to speed up the construction progress of the inclined pile guide arch.

[0006] The above technical purpose of the application is achieved by the following technical scheme:

[0007] In a first aspect, the application discloses a large-angle inclined pile guide arch pouring device for a concrete-filled steel tube arch bridge abutment, which comprises a rock groove, a guide arch foundation and a shaped steel formwork. The rock groove is arranged on a rock wall, the guide arch foundation is arranged at the bottom of the rock groove, and the shaped steel formwork is arranged at the groove opening of the rock groove. An anchor rod is arranged between the shaped steel formwork and the side wall of the rock groove. One end of the anchor rod is fixedly connected with the side wall of the rock groove, and the other end is fixedly connected with the shaped steel formwork. An attached vibrator is arranged on the shaped steel formwork, and the attached vibrator is used for vibrating the concrete poured in the shaped steel formwork. A pouring opening is arranged at the bottom of the arch-shaped shaped steel formwork, and a slurry outlet is arranged at the top of the arch-shaped shaped steel formwork. The pouring opening is used for pouring concrete into the rock groove, and the slurry outlet is used for discharging the float slurry in the rock groove.

[0008] By using the above scheme, when the pouring device is used, first, the rock groove is opened on the rock wall, then the shaped steel formwork is moved to the rock groove, the shaped steel formwork is fixedly connected with the side wall of the rock groove, the attached vibrator is installed on the shaped steel formwork, the concrete is poured into the rock groove through the pouring port, the attached concrete vibrates the concrete entering the rock groove, as the concrete gradually increases, the concrete gradually moves to the slurry outlet, as the slurry with stones flows out from the slurry outlet, the pouring of the concrete is completed, after the pouring of the concrete is completed, the shaped steel formwork is taken off from the rock groove after the concrete reaches a certain strength, and the pouring of the inclined pile foundation guide arch is completed, and it is no longer necessary to erect a full frame and a trolley, so that the construction progress of the inclined pile guide arch is accelerated.

[0009] Further, the rock groove comprises a left half and a right half, the left half and the right half are symmetrically arranged, and the two ends of the left half and the right half are communicated.

[0010] By using the above scheme, the rock groove is provided with two parts, and the partition plate is arranged at the communication part of the two parts to divide the poured concrete, so that the concrete is prevented from moving from the left half to the right half during pouring, and the concrete vacancy on the poured guide arch is avoided, and the construction quality of the guide arch is affected.

[0011] Further, the partition plate is provided with a plurality of anti-shrinkage steel bars, each anti-shrinkage steel bar is fixedly connected with the partition plate, and the two ends of each anti-shrinkage steel bar are located in the left half and the right half.

[0012] By using the above scheme, the partition plate is connected with the left half and the right half as a whole by arranging the anti-shrinkage steel bars, and the separation of the concrete from the partition plate caused by shrinkage of the concrete during solidification is avoided.

[0013] Further, the shaped steel formwork is provided with a plurality of unit plates, each unit plate is provided with an attached vibrator, and the adjacent unit plates are provided with a connecting device for connecting the adjacent unit plates as a whole.

[0014] Further, the connecting device comprises a receiving groove, a connecting groove and a connecting block, the connecting groove and the receiving groove are arranged on the opposite sides of the two adjacent unit plates, the connecting block is arranged in the receiving groove, the connecting block is slidably connected with the receiving groove, a driving air bag is arranged in the receiving groove, the receiving groove and the connecting groove are communicated when the adjacent unit plates abut, and the driving air bag is used to drive one end of the connecting block to slide from the receiving groove into the connecting groove.

[0015] By adopting the above scheme, when the adjacent unit plates abut against each other, the driving air bag driving connecting block is started to slide in the accommodating groove, so that one end of the connecting block slides into the connecting groove, and the two ends of the connecting block are in the accommodating groove and the connecting groove, respectively, thereby connecting the two adjacent unit plates together, so that the connecting device is used to connect a plurality of unit plates into a shaped steel formwork, thereby facilitating the production, transportation and installation of the shaped steel formwork.

[0016] Further, a sealing device is arranged between each unit plate and the side wall of the rock groove, the sealing device comprising a sealing groove and a sealing air bag, the sealing groove being arranged on the side of the unit plate close to the rock groove, and the sealing air bag being arranged in the sealing groove and used to seal the gap between the unit plate and the rock groove, and a communication pipe being arranged between the sealing air bag and the driving air bag and fixedly connected with the sealing air bag and the driving air bag at two ends thereof.

[0017] By adopting the above scheme, when the unit plate is fixed on the side wall of the rock groove, the driving air bag is inflated, the two ends of the communication pipe are fixedly connected with the sealing air bag and the driving air bag and in communication, the sealing air bag is inflated through the communication pipe, and after the sealing air bag slides out of the sealing groove after being inflated, the sealing air bag is used to seal the gap between the unit plate and the rock groove, thereby avoiding the leakage of the slurry between the unit plate and the rock wall and causing the pockmarked surface of the concrete after solidification.

[0018] Further, each communication pipe is provided with a gas conveying pipe, one end of the gas conveying pipe is fixedly connected with the side wall of the communication pipe, the other end of the gas conveying pipe passes through the side wall of the unit plate and is located outside the unit plate, the gas conveying pipe is in communication with the communication pipe, and a connecting hose is arranged between the gas conveying pipes of a plurality of unit plates and fixedly connected with each gas conveying pipe in communication.

[0019] By adopting the above scheme, the gas pump is started to convey high-pressure gas into the gas conveying pipe through the connecting hose, the gas in the gas conveying pipe is conveyed into the communication pipe, and the communication pipe conveys the high-pressure gas into the sealing air bag and the driving air bag, thereby achieving the purpose of simultaneously inflating the sealing air bag and the driving air bag.

[0020] In a second aspect, the application discloses a large-angle inclined pile guide arch pouring construction method for a concrete-filled steel tube arch bridge abutment, and comprises the following steps:

[0021] S1, a rock groove is formed on a working face: a total station is used to perform contour line laying for a guide arch, and then a water drill is used to drill along the contour line of the guide arch, the drilling depth of the water drill is controlled to be within 0.6 m, after a round of drilling along the contour line, a rock drill is used to break and remove the middle part of the drilled hole, and the scattered stone debris in the groove is cleaned;

[0022] S2, pouring the guide arch foundation: steel reinforcement cages are bound at the guide arch foundation position, and then concrete is poured at the guide arch foundation position, and the concrete of the guide arch foundation is solidified;

[0023] S3, installing a partition plate in the rock groove: when the strength of the arch concrete reaches 10 MPa, the steel cage of the arch is placed in the rock groove, and then a partition plate is installed at the joint of the left half and the right half of the arch, and the partition plate is fixed in the rock groove;

[0024] S4, fixing the anchor rod: anchor rod holes with a diameter of 40 mm are drilled at a position 0.17 m away from the groove of the rock groove on both sides, the distance between adjacent anchor rod holes is 0.5 m, the depth of the anchor rod hole is 2 m, the anchor rod is 2.1 m, and the anchor rod is grouted and fixed in the anchor rod hole;

[0025] S5, installing a shaped steel formwork: a plurality of unit plates are fixed in turn at the groove of the rock groove, so that the shaped steel formwork seals the rock groove;

[0026] S6, installing an attached vibrator: one attached vibrator is fixed and connected to each unit plate;

[0027] S7, pouring concrete; the pumping pipes of the two concrete delivery pumps are connected to the pouring ports of the left half and the right half respectively, and at the same time, the left half and the right half are poured with concrete by the two concrete delivery pumps, so that the concrete is poured from bottom to top and from both sides to the middle, the concrete pouring height is determined by knocking the unit plate, when the concrete passes through the corresponding unit plate, the attached vibrator is started, and when the concrete containing stones flows out of the outlet, the valve on the pumping pipe is closed to prevent the concrete from flowing back;

[0028] S8, removing the shaped steel formwork: when the concrete solidifies to a certain extent, the nut is turned to separate the shaped steel formwork from the anchor rod, and the pouring of the arch is completed.

[0029] Further, in the S5, the following steps are included:

[0030] S5.1, fixing of the shaped steel formwork: align the anchor rod with the through hole on the shaped steel formwork, then push the shaped steel formwork so that one end of the anchor rod passes through the shaped steel formwork and is threadedly connected with the nut;

[0031] S5.2, connection of the gas conveying pipe: each gas conveying pipe is connected with the connecting hose as a whole, and the inflation pump is fixed with the connecting hose;

[0032] S5.3, sealing of the shaped steel formwork and the side wall of the rock groove: start the inflation pump, use the inflation pump to convey high-pressure gas in the connecting hose, the high-pressure gas enters the gas conveying pipe through the connecting hose, the gas conveying pipe fills the gas into the sealing air bag and the driving air bag through the communication pipe, the sealing air bag pushes the connecting block to slide in the accommodating groove, one end of the connecting block is inserted into the connecting groove, thereby connecting a plurality of unit plates in turn as a whole, and the sealing air bag is used to seal the gap between the shaped steel formwork and the side wall of the rock groove.

[0033] To sum up, the application has the following technical effects:

[0034] 1. By setting the pouring device, the rock groove is opened on the rock wall, and then the shaped steel formwork is moved to the rock groove, the shaped steel formwork is fixedly connected with the side wall of the rock groove, and then the attached vibrator is installed on the shaped steel formwork, the concrete is poured into the rock groove through the pouring port, the attached concrete vibrates the concrete entering the rock groove, as the concrete gradually increases, the concrete gradually moves to the slurry outlet, as the slurry with stones flows out from the slurry outlet, the pouring of the concrete is completed, after the pouring of the concrete is completed, the shaped steel formwork is removed from the rock groove after the concrete reaches a certain strength, the pouring of the inclined pile foundation arch is completed, and it is no longer necessary to set up a full frame and a trolley, so that the construction progress of the inclined pile arch is accelerated;

[0035] 2. By setting the partition plate and the anti-shrinkage steel bar, the concrete can be prevented from moving from the left half to the right half during pouring, so that the concrete gap exists on the poured arch, and the construction quality of the arch is affected; meanwhile, the anti-shrinkage steel bar connects the partition plate with the left half and the right half as a whole, so that the separation of the concrete and the partition plate caused by shrinkage of the concrete during solidification is avoided;

[0036] 3. By setting the connecting device, when the adjacent unit plates abut against each other, the driving air bag is started to drive the connecting block to slide in the accommodating groove, so that one end of the connecting block slides into the connecting groove, and the two ends of the connecting block are respectively in the accommodating groove and the connecting groove, so as to connect the two adjacent unit plates together, so that the connecting device is used to connect a plurality of unit plates as the shaped steel formwork, thereby facilitating the production, transportation and installation of the shaped steel formwork. BRIEF DESCRIPTION OF DRAWINGS

[0037] Figure 1 is a structural schematic view of the application when the pouring device of the large-angle inclined pile arch of the concrete-filled steel tube arch bridge is applied;

[0038] Figure 2 is a structural schematic view of the pouring device of the application;

[0039] Figure 3 is a structural schematic view of the application showing the partition plate;

[0040] Figure 4 is a structural schematic view showing the anchor rod and the arch foundation;

[0041] Figure 5 is a structural schematic view showing the connecting device;

[0042] Figure 6 is a structural schematic view showing the connecting device;

[0043] Figure 7is a structural schematic diagram of the sealing device.

[0044] In the figure, 1, rock wall; 11, rock groove; 111, left half; 112, right half; 2, guide arch foundation; 3, shaped steel formwork; 31, unit plate; 32, grout outlet; 33, pouring port; 4, attached vibrator; 5, partition; 51, anti-shrinkage reinforcement; 6, connecting device; 61, accommodating groove; 62, connecting groove; 63, connecting block; 7, driving air bag; 8, sealing device; 81, sealing groove; 82, sealing air bag; 9, communication pipe; 10, gas conveying pipe; 20, connecting hose; 30, concrete delivery pump; 301, pumping pipe; 40, anchor rod. DETAILED DESCRIPTION

[0045] The application will be further described in detail below with reference to the accompanying drawings.

[0046] Referring to Figures 1-4 The steel pipe concrete arch bridge abutment large-angle inclined pile guide arch pouring device provided by the embodiment comprises a rock groove 11, a guide arch foundation 2 and a shaped steel formwork 3. The rock groove 11 is arranged on the rock wall 1. The guide arch foundation 2 is arranged at the bottom of the rock groove 11. The shaped steel formwork 3 is arranged at the slot opening of the rock groove 11. An anchor rod 40 is arranged between the shaped steel formwork 3 and the side wall of the rock groove 11. One end of the anchor rod 40 is fixedly connected with the side wall of the rock groove 11, and the other end is fixedly connected with the shaped steel formwork 3. In the embodiment, the anchor rod 40 and the shaped steel formwork 3 are fixed by a nut. An anti-loosening washer is arranged between the shaped steel formwork 3 and the nut. An attached vibrator 4 is arranged on the shaped steel formwork 3. The attached vibrator 4 is used for vibrating the concrete poured in the shaped steel formwork 3. The shaped steel formwork 3 is provided with a pouring port 33 at the bottom of the arch. The pouring port 33 is connected with a concrete delivery pump 30. The pumping pipe 301 of the concrete delivery pump 30 is detachably fixedly connected with the pouring port 33. The pumping pipe 301 is used for conveying concrete into the rock groove 11. The shaped steel formwork 3 is provided with a grout outlet 32 at the top of the arch. The pouring port 33 is used for pouring concrete into the rock groove 11. The grout outlet 32 is used for discharging the float slurry in the rock groove 11.

[0047] Referring to Figures 2-4 The rock groove 11 comprises a left half 111 and a right half 112. The left half 111 and the right half 112 are symmetrically arranged. The two ends of the left half 111 and the right half 112 are communicated. The left half 111 and the right half 112 are both provided with the pouring port 33 and the grout outlet 32. The two connecting portions of the left half 111 and the right half 112 are both provided with a partition 5. The partition 5 is used for preventing the concrete in the left half 111 and the right half 112 from being mixed when the concrete is poured. A plurality of anti-shrinkage reinforcements 51 are arranged on the partition 5. Each anti-shrinkage reinforcement 51 is fixedly connected with the partition 5. The two ends of each anti-shrinkage reinforcement 51 are located in the left half 111 and the right half 112 respectively.

[0048] Referring to Figures 5-7 The steel formwork 3 is provided as a plurality of unit plates 31, each of which is provided with an attached vibrator 4, and a connecting device 6 is arranged between adjacent unit plates 31, which is used to connect the adjacent unit plates 31 as a whole; the connecting device 6 comprises a receiving groove 61, a connecting groove 62 and a connecting block 63, the connecting groove 62 and the receiving groove 61 are arranged on the opposite sides of two adjacent unit plates 31, the connecting block 63 is arranged in the receiving groove 61, and the connecting block 63 is in sliding connection with the receiving groove 61, a driving air bag 7 is arranged in the receiving groove 61, the receiving groove 61 and the connecting groove 62 are in communication when the adjacent unit plates 31 abut, and the driving air bag 7 is used to drive one end of the connecting block 63 to slide from the receiving groove 61 into the connecting groove 62; a sealing device 8 is arranged between each unit plate 31 and the sidewall of the rock groove 11, and the sealing device 8 comprises a sealing groove 81 and a sealing air bag 82, the sealing groove 81 is arranged on the side of the unit plate 31 close to the rock groove 11, the sealing air bag 82 is arranged in the sealing groove 81, the sealing air bag 82 is used to seal the gap between the unit plate 31 and the rock groove 11, and a communication pipe 9 is arranged between the sealing air bag 82 and the driving air bag 7, and the two ends of the communication pipe 9 are fixedly connected with the sealing air bag 82 and the driving air bag 7 respectively.

[0049] Referring to Figures 5-7 Each communication pipe 9 is provided with a gas conveying pipe 10, one end of the gas conveying pipe 10 is fixedly connected with the sidewall of the communication pipe 9, the other end of the gas conveying pipe 10 penetrates through the sidewall of the unit plate 31 and is located outside the unit plate 31, the gas conveying pipe 10 is in communication with the communication pipe 9, and a connecting hose 20 is arranged between the gas conveying pipes 10 of a plurality of unit plates 31, and the connecting hose 20 is fixedly connected and in communication with each gas conveying pipe 10.

[0050] The embodiment also provides a steel pipe concrete arch bridge abutment large-angle inclined pile guide arch pouring construction method, comprising the following steps:

[0051] S1, rock groove 11 is opened in working face: the contour of the guide arch is surveyed by using a total station, then a water abrasive drill is used to drill along the contour line of the guide arch, the drilling depth of the water abrasive drill is controlled within 0.6 m, after drilling a circle along the contour line, a rock drill is used to break the middle part of the drilled hole and take out, and the scattered stone chips in the slot are cleaned;

[0052] S2, pouring the guide arch foundation 2: binding the steel cage at the guide arch foundation 2 position, then pouring the concrete at the guide arch foundation 2 position, and waiting for the guide arch foundation 2 concrete to solidify;

[0053] S3, installing the partition plate 5 in the rock groove 11: when the strength of the guide arch concrete reaches 10Mpa, the steel cage of the guide arch is placed in the rock groove 11, then one partition plate 5 is installed at each of the two connecting positions of the left half 111 and the right half 112 of the guide arch, and the partition plate 5 is fixed in the rock groove 11;

[0054] S4, fixed anchor rod 40: in the slot of the groove 11, each 0.17 m from the slot on both sides of the anchor rod 40 hole, the diameter of the anchor rod 40 hole is 40 mm, the distance between adjacent anchor rod 40 holes is 0.5 m, the depth of the anchor rod 40 hole is 2 m, the anchor rod 40 is selected as 2.1 m, and the anchor rod 40 is grouted in the anchor rod 40 hole;

[0055] S5, install the shaped steel formwork 3: a plurality of unit plates 31 are fixed in the slot of the groove 11 in sequence, so that the shaped steel formwork 3 seals the groove 11;

[0056] S6, install the attached vibrator 4: one attached vibrator 4 is fixedly connected to each unit plate 31;

[0057] S7, pouring concrete; the pumping pipes 301 of the two concrete delivery pumps 30 are respectively connected with the pouring ports 33 of the left half 111 and the right half 112, and the left half 111 and the right half 112 are poured with concrete by the two concrete delivery pumps 30 at the same time, so that the concrete is poured from bottom to top and from both sides to the middle, the concrete pouring height is determined by knocking the unit plate 31, when the concrete passes through the corresponding unit plate 31, the attached vibrator 4 is started, and when the concrete containing stones flows out of the outlet 32, the valve on the pumping pipe 301 is closed to prevent the concrete from flowing back;

[0058] S8, remove the shaped steel formwork 3: when the concrete solidifies to a certain extent, rotate the nut to separate the shaped steel formwork 3 from the anchor rod 40, and complete the pouring of the guide arch.

[0059] Among them, S5 includes the following steps:

[0060] S5.1, fixing of the shaped steel formwork 3: align the anchor rod 40 with the through hole on the shaped steel formwork 3, then push the shaped steel formwork 3, so that one end of the anchor rod 40 passes through the shaped steel formwork 3 and is threadedly connected with the nut;

[0061] S5.2, connection of the gas conveying pipe 10: each gas conveying pipe 10 is connected with the connecting hose 20 as a whole, and the inflator is fixed with the connecting hose 20;

[0062] S5.3, sealing of the shaped steel formwork 3 and the side wall of the groove 11: start the inflator, use the inflator to convey high-pressure gas in the connecting hose 20, the high-pressure gas enters the gas conveying pipe 10 through the connecting hose 20, the gas conveying pipe 10 fills the gas into the sealing air bag 82 and the driving air bag 7 through the communication pipe 9, the sealing air bag 82 pushes the connecting block 63 to slide in the accommodating groove 61, one end of the connecting block 63 is inserted into the connecting groove 62, so that a plurality of unit plates 31 are connected in sequence, and the sealing air bag 82 is used to seal the gap between the shaped steel formwork 3 and the side wall of the groove 11.

[0063] The implementation principle of the pouring device and the construction method for the large-angle inclined pile guide arch of the concrete-filled steel tube arch bridge abutment of the embodiment of the application is as follows: when the pouring device is used, first, the rock groove 11 is formed on the rock wall 1, then the guide arch foundation 2 is poured, then the anchor rod 40 is fixedly connected with the rock wall 1, then the unit plate 31 is moved to the rock groove 11, the unit plate 31 seals the rock groove 11, then the unit plate 31 is fixed with the anchor rod 40, so that the unit plate 31 is fixed at the rock groove 11, a plurality of unit plates 31 are sequentially installed to form the shaped steel formwork 3, the connecting hose 20 is sequentially connected with a plurality of gas conveying pipes 10, the vacuum pump is started to convey high-pressure gas into the connecting hose 20, the high-pressure gas is conveyed into the gas conveying pipe 10 through the connecting hose 20, then the high-pressure gas is conveyed into the communication pipe 9 through the gas conveying pipe 10, finally the high-pressure gas is conveyed into the sealing air bag 82 and the driving air bag 7 through the communication pipe 9, the high-pressure gas pushes the sealing air bag 82 and the driving air bag 7 to expand at the same time, the driving air bag 7 pushes the connecting block 63 to slide in the accommodating groove 61, so that one end of the connecting block 63 slides into the connecting groove 62, thereby the connecting block 63 seals the gap between the adjacent unit plates 31, at the same time, the sealing air bag 82 expands to seal the gap between the unit plate 31 and the rock groove 11, so as to avoid the leakage of the poured concrete as much as possible, then the two concrete conveying pumps 30 are moved, the two pump pipes 301 are connected with the pouring ports 33 of the left half part 111 and the right half part 112 respectively, at the same time, the two concrete conveying pumps 30 are used to pour the concrete into the left half part 111 and the right half part 112, so that the concrete is poured from the bottom to the top and from the two sides to the middle, the pouring height of the concrete is determined by knocking the unit plate 31, when the concrete passes through the corresponding unit plate 31, the attached vibrator 4 is started, when the concrete containing stones flows out of the outlet 32, the valve on the pump pipe 301 is closed to prevent the backflow of the concrete.

[0064] The embodiment is only an explanation of the application, and is not a limitation of the application, and those skilled in the art can make modifications to the embodiment without creative contribution according to the needs after reading the specification, and the application is protected by the patent law as long as the scope of the claims is within the scope of the application.

Claims

1. A large-angle inclined pile guide arch pouring device for the arch support of a steel pipe concrete arch bridge, characterized in that: The utility model relates to a rock groove (11), a guide arch foundation (2) and a shaped steel formwork (3), the rock groove (11) is opened in rock wall (1), the guide arch foundation (2) is set up at the bottom of rock groove (11), the shaped steel formwork (3) is set up at the slot mouth of rock groove (11), the shaped steel formwork (3) with the lateral wall between rock groove (11) is provided with anchor rod (40), one end of anchor rod (40) is fixedly connected with the lateral wall of rock groove (11), the other end is fixedly connected with shaped steel formwork (3), the shaped steel formwork (3) is provided with attached type vibrator (4), attached type vibrator (4) is used for vibrating the concrete pouring in shaped steel formwork (3), the shaped steel formwork (3) is provided with the pouring port (33) at the bottom of arch, the shaped steel formwork (3) is provided with the slurry outlet (32) at the top of arch, the pouring port (33) is used for pouring the concrete to rock groove (11), the slurry outlet (32) is used for discharging the float slurry in rock groove (11); The shaped steel formwork (3) is provided with a plurality of unit plates (31), each unit plate (31) is provided with an attached type vibrator (4), and a connecting device (6) is arranged between adjacent unit plates (31), the connecting device (6) is used for connecting adjacent unit plates (31) as a whole. The connecting device (6) comprises a receiving groove (61), a connecting groove (62) and a connecting block (63), the connecting groove (62) and the receiving groove (61) are arranged on opposite sides of two adjacent unit plates (31), the connecting block (63) is arranged in the receiving groove (61), the connecting block (63) is in sliding connection with the receiving groove (61), a driving air bag (7) is arranged in the receiving groove (61), when the adjacent unit plates (31) abut, the receiving groove (61) and the connecting groove (62) are communicated, and the driving air bag (7) is used for driving one end of the connecting block (63) to slide from the receiving groove (61) to the connecting groove (62).

2. The large-angle inclined pile guide arch pouring device for the arch support of a concrete-filled steel tube arch bridge according to claim 1, characterized in that: The rock groove (11) comprises a left half (111) and a right half (112), the left half (111) and the right half (112) are symmetrically arranged, and the two ends of the left half (111) and the right half (112) are communicated, the left half (111) and the right half (112) are provided with the pouring port (33) and the slurry outlet (32), and the two connecting portions of the left half (111) and the right half (112) are provided with a partition plate (5), the partition plate (5) is used for preventing the concrete in the left half (111) and the right half (112) from being mixed when pouring the concrete.

3. The large-angle skew pile guide arch pouring device for the arch support of a concrete-filled steel tube arch bridge according to claim 2, characterized in that: The partition plate (5) is provided with a plurality of anti-shrinkage steel bars (51), each anti-shrinkage steel bar (51) is fixedly connected with the partition plate (5), and the two ends of each anti-shrinkage steel bar (51) are located in the left half (111) and the right half (112) respectively.

4. The large-angle skew pile guide arch pouring device for the arch support of a concrete-filled steel tube arch bridge according to claim 1, characterized in that: Each unit plate (31) is provided with a sealing device (8) between the unit plate (31) and the side wall of the rock groove (11), the sealing device (8) comprises a sealing groove (81) and a sealing air bag (82), the sealing groove (81) is arranged on the side of the unit plate (31) close to the rock groove (11), the sealing air bag (82) is arranged in the sealing groove (81), the sealing air bag (82) is used for sealing the gap between the unit plate (31) and the rock groove (11), and the sealing air bag (82) and the driving air bag (7) are provided with a communication pipe (9), the two ends of the communication pipe (9) are fixedly connected with the sealing air bag (82) and the driving air bag (7) respectively.

5. The large-angle skew pile guide arch pouring device for the arch support of a concrete-filled steel tube arch bridge according to claim 4, characterized in that: Each of the communication pipes (9) is provided with a gas conveying pipe (10), one end of the gas conveying pipe (10) is fixedly connected with the side wall of the communication pipe (9), the other end of the gas conveying pipe (10) penetrates through the side wall of the unit plate (31) and is located outside the unit plate (31), the gas conveying pipe (10) is in communication with the communication pipe (9), and the gas conveying pipes (10) of the plurality of unit plates (31) are provided with a connecting hose (20), the connecting hose (20) is fixedly connected and in communication with each gas conveying pipe (10).

6. The construction method of the large-angle inclined pile guide arch pouring of the arch support of the steel pipe concrete arch bridge is characterized in that, The use of the steel pipe concrete arch bridge abutment large-angle inclined pile guide arch pouring device according to any one of claims 1-5 comprises the following steps: S1, a rock groove (11) is opened on the working face: the contour of the guide arch is surveyed by using a total station, then a water drill is used to drill along the contour line of the guide arch, the drilling depth of the water drill is controlled to be within 0.6 m, after a circle of drilling is completed along the contour line, the middle part of the drilled hole is broken by using a pneumatic rock drill, and the scattered stone debris in the groove is cleaned; S2, pouring the guide arch foundation (2): binding the steel reinforcement cage at the guide arch foundation (2) position, then pouring the concrete at the guide arch foundation (2) position, and waiting for the concrete of the guide arch foundation (2) to solidify; S3, installing the partition plate (5) in the rock groove (11): when the strength of the guide arch concrete reaches 10Mpa, the steel reinforcement cage of the guide arch is placed in the rock groove (11), then one partition plate (5) is installed at each of the two connecting positions of the left half (111) and the right half (112) of the guide arch, and the partition plate (5) is fixed in the rock groove (11); S4, fixing the anchor rod (40): drilling the anchor rod (40) hole at a position 0.17 m away from the groove of the rock groove (11) on both sides, the diameter of the anchor rod (40) hole is 40 mm, the distance between adjacent anchor rod (40) holes is 0.5 m, the depth of the anchor rod (40) hole is 2 m, the anchor rod (40) is selected to be 2.1 m, and the anchor rod (40) is grouted and fixed in the anchor rod (40) hole; S5, installing the shaped steel formwork (3): a plurality of unit plates (31) are fixed in the groove of the rock groove (11) in sequence, so that the shaped steel formwork (3) seals the rock groove (11); S6, installing the attached vibrator (4): one attached vibrator (4) is fixedly connected to each unit plate (31). S7, pouring concrete; connecting the pumping pipes (301) of two concrete delivery pumps (30) with the pouring ports (33) of the left half (111) and the right half (112) respectively, and pouring concrete into the left half (111) and the right half (112) by using the two concrete delivery pumps (30), so that the concrete is poured from bottom to top and from both sides to the middle, and the concrete pouring height is determined by the knocking unit plate (31), when the concrete passes through the corresponding unit plate (31), the attached vibrator (4) is started, and when the concrete containing stones flows out of the outlet (32), the valve on the pumping pipe (301) is closed to prevent the concrete from flowing backward; S8, removing the shaped steel formwork (3): when the concrete solidifies to a certain extent, rotate the nut to separate the shaped steel formwork (3) from the anchor rod (40), and complete the pouring of the guide arch.

7. The method according to claim 6, wherein the method is characterized in that: In the S5, the following steps are included: S5.1, fixing of the shaped steel formwork (3): aligning the anchor rod (40) with the through hole on the shaped steel formwork (3), and then pushing the shaped steel formwork (3) so that one end of the anchor rod (40) passes through the shaped steel formwork (3) and is threadedly connected with the nut; S5.2, connection of the gas delivery pipe (10): connecting each gas delivery pipe (10) with the connecting hose (20) as a whole, and fixing the inflation pump with the connecting hose (20); S5.3, sealing of the shaped steel formwork (3) and the side wall of the rock groove (11): starting the inflation pump, using the inflation pump to deliver high-pressure gas in the connecting hose (20), the high-pressure gas enters the gas delivery pipe (10) through the connecting hose (20), the gas delivery pipe (10) fills the sealing air bag (82) and the driving air bag (7) with gas through the communication pipe (9), the sealing air bag (82) pushes the connecting block (63) to slide in the accommodating groove (61), one end of the connecting block (63) is inserted into the connecting groove (62), thereby connecting a plurality of unit plates (31) in sequence, and the sealing air bag (82) is used for sealing the gap between the shaped steel formwork (3) and the side wall of the rock groove (11).

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