Automatic positioning system for steel pipe pile and method of using same

Abstract

The application provides a steel pipe pile automatic positioning system, which comprises a positioning system, a signal transmission system and a control system, and the positioning system comprises a steel casing, a plurality of positioning devices are arranged on the side wall of the steel casing in the circumferential direction, the positioning device comprises an arc-shaped plate, the arc-shaped plate is connected with the outer wall of the steel casing, a fixing frame is arranged on the outer side of the arc-shaped plate, the arc-shaped plate and the steel casing are provided with an opening part, a moving frame is arranged at the opening part of the arc-shaped plate, a first top roller is arranged at the end of the moving frame, the first top roller abuts against the steel pipe pile, a first displacement sensor and at least two first hydraulic jacks are arranged between the fixing frame and the moving frame, the first hydraulic jack drives the moving frame to move in the radial direction of the steel casing, and the first displacement sensor is used for detecting the displacement of the moving frame.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of pile construction, in particular to a steel pipe pile automatic positioning system and a use method thereof. BACKGROUND

[0002] With the vigorous promotion of infrastructure in China, steel pipe piles are applied in various fields such as bridges, hydraulic engineering, municipal engineering, and especially in high-pile wharfs.

[0003] At present, the steel pipe pile construction in China has great difficulty in precision control, and the positioning effect is poor in construction, especially when the upper part of the steel pipe pile is a pile cap with a berthing component, the deviation of the steel pipe pile will cause the deviation of the berthing component, thereby affecting the straightness along the sea side of the wharf, and when positioning with a positioning frame, the positioning frame is complicated to process and has low precision. SUMMARY

[0004] The present application provides a steel pipe pile automatic positioning system and a use method thereof, which solves the problems of great positioning difficulty, low precision, complicated construction, and low efficiency of the positioning frame in traditional steel casing construction.

[0005] To solve the above technical problems, the technical scheme adopted by the present application is: a steel pipe pile automatic positioning system, comprising a positioning system, a signal transmission system and a control system, the positioning system comprising a steel casing, a plurality of positioning devices are arranged on the side wall of the steel casing in the circumferential direction, the positioning device comprising an arc-shaped plate, the arc-shaped plate is connected with the outer wall of the steel casing, a fixing frame is arranged on the outer side of the arc-shaped plate, the arc-shaped plate and the steel casing are provided with an opening part, a moving frame is arranged at the opening part of the arc-shaped plate, a first top roller is arranged at the end of the moving frame, the first top roller abuts against the steel pipe pile, a first displacement sensor and at least two first hydraulic jacks are arranged between the fixing frame and the moving frame, the first hydraulic jacks drive the moving frame to move in the radial direction of the steel casing, and the first displacement sensor is used to detect the displacement of the moving frame.

[0006] The outer wall of the first top roller is in a concave arc shape or a concave V shape.

[0007] In the preferred scheme, a plurality of rows of positioning devices are arranged along the length direction of the steel casing.

[0008] In the preferred scheme, the positioning system further comprises a guide frame device, the guide frame device is arranged higher than the positioning device, a plurality of reference piles are arranged on the outer side of the steel casing in the circumferential direction, the centers of the reference piles are equidistant from the central axis of the steel casing, the guide frame device is arranged on the reference piles, and the guide frame device comprises a guide frame base, a rotating arm frame is arranged on the guide frame base, a second top roller is arranged at the end of the rotating arm frame, and the second top roller abuts against the outer wall of the steel pipe pile.

[0009] In the preferred solution, the rotating arm frame comprises a rear vertical arm, a middle vertical arm and a front vertical arm arranged in parallel, the rear vertical arm, the middle vertical arm and the front vertical arm are hinged through at least two parallel rotating arms, the front vertical arm is provided with at least two second top rollers, the line connecting the contact points of the two second top rollers is vertical, a second hydraulic top is arranged between the middle vertical arm and the rear vertical arm, and the two ends of the second hydraulic top are connected with the rear vertical arm and the middle vertical arm respectively to drive the rotating arm frame to rotate.

[0010] In the preferred solution, the distance between the rear vertical arm and the middle vertical arm is less than the distance between the front vertical arm and the middle vertical arm, and the middle vertical arm is provided with a second displacement sensor, the second displacement sensor is provided with a movable telescopic measuring rod, the front end of the telescopic measuring rod is provided with a connecting sleeve, a retaining spring is arranged between one end of the connecting sleeve and the main body of the second displacement sensor, and the other end of the connecting sleeve is provided with a roller which rolls against the side wall of the rear vertical arm.

[0011] In the preferred solution, a dividing disc is arranged between the reference pile and the guide frame device, the dividing disc is provided with a plurality of connecting ears, the upper end of the reference pile is provided with a plurality of positioning columns, the connecting ears are clamped on the positioning columns for positioning, the positioning columns are provided with threadedly connected locking knobs, the locking knobs are provided with outwardly extending pressing blocks, and one end of the connecting ear is open.

[0012] In the preferred solution, a pressure sensor is arranged at the contact position of the second top roller and the front vertical arm.

[0013] In the preferred solution, a dividing disc is arranged between the reference pile and the guide frame device, the dividing disc is provided with a plurality of connecting ears, the upper end of the reference pile is provided with a plurality of positioning columns, the connecting ears are clamped on the positioning columns for positioning, the positioning columns are provided with threadedly connected locking knobs, the locking knobs are provided with outwardly extending pressing blocks, and one end of the connecting ear is open.

[0014] The construction steps include,

[0015] S1, driving a steel casing into the stratum, and measuring the center of the steel casing on the plane of the multi-layer positioning device;

[0016] S2, installing the positioning device;

[0017] S3, connecting the signal transmission system and the control system, and resetting the stroke of the first hydraulic jack;

[0018] S4, inputting the coordinates of the center of the steel casing, the design coordinates of the center of the steel pipe pile, and the angle between the actual axis of the virtual column composed of the plurality of positioning devices and the design coordinates;

[0019] S5, the control system adjusts the stroke of the first hydraulic jack according to the input information to ensure that the center of the steel pipe pile reaches the design position and the perpendicularity meets the requirements;

[0020] S6, insert the steel pipe pile;

[0021] S7, remove the positioning device and pull out the steel casing;

[0022] S8, repeat steps S1-S7 until all steel pipe pile construction is completed.

[0023] In the preferred embodiment, the method is further extended to include:

[0024] S11, determine the insertion position of multiple steel pipe piles;

[0025] S12, insert a reference pile at the midpoint of adjacent steel pipe piles;

[0026] S13, select the position of the steel pipe pile to be installed, and insert the steel casing with the selected position as the center;

[0027] S14, arrange and install the positioning device on the outer wall of the steel casing in a ring shape, and install multiple layers of the positioning device;

[0028] S15, install the indexing turntable on the reference pile around the steel casing, and install the guide frame device on each indexing turntable;

[0029] S16, electrically connect the positioning device and the guide frame device with the signal transmission system and the control system;

[0030] S17, move the insertion device downward into the steel casing and close to the stratum;

[0031] S18, according to the outer wall diameter of the steel pipe pile, control the rotation of the arm frame of each guide frame device to the center to tightly fit the outer wall of the steel pipe pile;

[0032] S19, horizontally move the insertion device to change the central axis position of the steel pipe pile, so that each second top roller is tightly fitted with the outer wall of the steel pipe pile;

[0033] S110, input the center coordinates of the steel casing, the design center coordinates of the steel pipe pile, and the angle between the actual axis of the virtual column composed of multiple positioning devices and the design coordinate axis;

[0034] S111, the control system adjusts the first hydraulic top stroke according to the input information to ensure that the center of the steel pipe pile reaches the design position and the perpendicularity meets the requirements;

[0035] S112, monitor the pressure sensor value, and insert the steel pipe pile by the insertion device;

[0036] S113, remove the positioning device, pull out the steel casing, and install the steel casing and the positioning device to the position of the next adjacent steel pipe pile to be installed;

[0037] S114, rotating the index disc on the reference pile adjacent to the steel pipe pile, removing the index disc on the reference pile not adjacent to the steel pipe pile and installing the index disc on the reference pile around the empty space of the steel pipe pile;

[0038] S115, repeating S3-S114 until all the steel pipe pile construction is completed, removing the positioning device, the index disc and the guide frame device and pulling out all the steel casing and the reference pile.

[0039] The beneficial effects of the present application are: the device can realize the accurate positioning and positioning function of the steel pipe pile, ensure the insertion accuracy of the steel pipe pile, and is especially suitable for the area with high requirement on the insertion accuracy of the steel pipe pile, the accuracy is more guaranteed and the construction efficiency is higher compared with the traditional guide frame construction; the reference piles are inserted around the steel casing, the reference positions are verified with each other, even if the steel casing is displaced due to the reaction force of the steel pipe pile when the steel casing is adjusted, the position can still be corrected through the reference piles; the installation height of the guide frame device is higher than that of the positioning device, the second top roller is exposed above the water surface, the visual guidance is formed for the construction personnel, the lower end of the steel pipe pile is positioned and the perpendicularity of the steel pipe pile is ensured; when the positioning device adjusts the steel pipe pile, the pressure sensor on the back side of the second top roller monitors the pressure in multiple directions in real time, the displacement of the center of the steel casing can be effectively monitored, and the insertion position and the perpendicularity of the steel pipe pile are doubly ensured. BRIEF DESCRIPTION OF DRAWINGS

[0040] The present application will be further described below in combination with the drawings and embodiments.

[0041] Figure 1 is a schematic diagram of the steel casing and the positioning device of the present application.

[0042] Figure 2 is a front view of the steel casing and the positioning device of the present application.

[0043] Figure 3 is a top view of the steel casing and the positioning device of the present application.

[0044] Figure 4 is an oblique view of the positioning device of the present application.

[0045] Figure 5 is a schematic diagram of the inside of the counterforce frame of the present application.

[0046] Figure 6 is a schematic diagram of the arrangement of the reference piles of the present application.

[0047] Figure 7 is a schematic diagram of the installation of the guide frame device of the present application.

[0048] Figure 8 is a structural diagram of the guide frame device of the present application.

[0049] Figure 9Figure is a schematic diagram of the displacement sensor of the present application.

[0050] Figure 10 Figure is a schematic diagram of the indexing turntable of the present application.

[0051] Figure 11 Figure is the installation state of the indexing turntable of the present application Figure 1 .

[0052] Figure 12 Figure is the installation state of the indexing turntable of the present application Figure 2 .

[0053] Figure: steel casing 1; steel pipe pile 2; positioning device 3; fixed frame 301; moving frame 302; first hydraulic jack 303; first jack roller 304; arc plate 305; reference pile 4; positioning column 401; guide frame device 5; second jack roller 501; guide frame base 502; swing arm 503; rear vertical arm 504; middle vertical arm 505; front vertical arm 506; second hydraulic jack 507; pressure sensor 508; indexing turntable 6; connecting lug 601; first displacement sensor 7; second displacement sensor 8; telescopic measuring rod 801; adapter sleeve 802; roller 803; retaining spring 804; adjusting head 805; locking female 806; locking knob 9; pressure block 901; handle 902. DETAILED DESCRIPTION

[0054] Example 1:

[0055] As Figures 1-12 In the present application, an automatic positioning system for steel pipe piles includes a steel casing 1, a plurality of positioning devices 3 are arranged on the side wall of the steel casing 1 in the circumferential direction, the positioning device 3 includes an arc plate 305, the arc plate 305 is connected with the outer wall of the steel casing 1, a fixed frame 301 is arranged on the outer side of the arc plate 305, the arc plate 305 and the steel casing 1 are provided with an opening part, a moving frame 302 is arranged at the opening part of the arc plate 305, a first jack roller 304 is arranged at the end of the moving frame 302, the first jack roller 304 abuts against the steel pipe pile 2, a first displacement sensor 7 and at least two first hydraulic jacks 303 are arranged between the fixed frame 301 and the moving frame 302, the first hydraulic jacks 303 drive the moving frame 302 to move radially along the steel casing 1, the first displacement sensor 7 is used to detect the displacement of the moving frame 302, and a plurality of rows of positioning devices 3 are arranged along the length direction of the steel casing 1.

[0056] The fixed frame 301 includes two counterforce frames and a housing part for mounting the first hydraulic jack 303, and the two first hydraulic jacks 303 can ensure the balance of the pushing force during the pushing of the steel pipe pile 2.

[0057] There are four positioning devices 3 per layer, and at least two layers are arranged, so that the verticality and center position of the steel pipe pile 2 can be adjusted by eight points.

[0058] The first displacement sensor 7 and the second displacement sensor 8 are structurally identical, and can detect the displacement of the moving frame 302 and communicate with the control system.

[0059] In the preferred embodiment, the outer wall of the first top roller 304 is concave arc-shaped or concave V-shaped.

[0060] The concave V-shaped structure can accommodate more outer diameters of the steel pipe pile 2. When the concave arc-shaped structure is selected, the curvature is preferably consistent with the outer diameter of the steel pipe pile 2.

[0061] Since the foundation of the high-pile wharf is mostly loose silt, it is convenient to insert the steel pipe or column, but the stress is easy to deform and shift. When the steel casing 1 pushes the steel pipe pile 2, the positioning device 3 often acts alone, and thus the reaction force can cause the steel casing 1 to deflect or translate.

[0062] In the preferred embodiment, a plurality of reference piles 4 are arranged on the outer side of the steel casing 1 in the circumferential direction, and a guide frame device 5 is arranged on the reference pile 4. The guide frame device 5 includes a guide frame base 502, a rotating arm frame is arranged on the guide frame base 502, and a second top roller 501 is arranged at the end of the rotating arm frame. The second top roller 501 abuts against the outer wall of the steel pipe pile 2.

[0063] The reference pile 4 is arranged at a certain distance from the outer side of the steel casing 1 and is not affected by the reaction force of the steel pipe pile 2. Taking four reference piles 4 as an example, the intersection of the connecting lines of the four reference piles 4 serves as the theoretical central axis position of the steel casing 1 or the steel pipe pile 2. Even if one of the two reference piles fails, the other reference pile can still accurately determine the insertion position.

[0064] If the second top roller 501 on the rotating arm frame is single, it mainly plays a role in initial positioning. When the steel pipe pile 2 is lowered, the second top roller 501 can be folded and centered. When the lower end of the steel pipe pile 2 passes through the second top roller 501, the center of the steel pipe pile 2 is close to the installation center. The verticality of the steel pipe pile 2 is monitored by a total station instrument or other verticality monitoring device. When the steel pipe pile 2 is lowered into the steel casing 1, only fine adjustment by the positioning device 3 is needed.

[0065] In the preferred embodiment, the rotating arm frame includes a rear vertical arm 504, a middle vertical arm 505, and a front vertical arm 506 arranged in parallel. The rear vertical arm 504, the middle vertical arm 505, and the front vertical arm 506 are hinged through at least two parallel rotating arms 503. The front vertical arm 506 is provided with at least two second top rollers 501, and the connecting line of the contact points of the two second top rollers 501 is vertical.

[0066] For the case where two second top rollers 501 are arranged on the front vertical arm 506, it is mainly suitable for near-shore shallow water working conditions such as high-pile wharfs. At this time, the verticality monitoring device lacks a placement position, the positioning device 3 is also submerged underwater, and there is a lack of intuitive visual guidance. It is difficult for the steel pipe pile 2 to directly align or closely align with the center of the steel casing 1.

[0067] Because the guide frame device 5 is higher than the positioning device 3, the water surface can be exposed, so that the second top roller 501 can determine a clear guide position above the water surface, and the steel pipe pile 2 is basically aligned with the installation center when the user needs to align the lower end of the steel pipe pile 2 with the folding area and insert the steel pipe pile 2 into the folding area. Because the contact surfaces of the two second top rollers 501 at different heights are vertically aligned, the steel pipe pile 2 can be guaranteed to be vertical when being attached, and an additional verticality monitoring device is not needed.

[0068] In the preferred embodiment, the distance between the rear vertical arm 504 and the middle vertical arm 505 is smaller than the distance between the front vertical arm 506 and the middle vertical arm 505. The middle vertical arm 505 is provided with a second displacement sensor 8. The second displacement sensor 8 is provided with a movable telescopic measuring rod 801. The front end of the telescopic measuring rod 801 is provided with a connecting sleeve 802. A retaining spring 804 is arranged between one end of the connecting sleeve 802 and the fixed body of the second displacement sensor 8. The other end of the connecting sleeve 802 is provided with a roller 803, which rolls against the side wall of the rear vertical arm 504.

[0069] The first displacement sensor 7 and the second displacement sensor 8 are electrically connected with the control system.

[0070] The roller 803 is installed on an adjusting head 805, which is threadedly connected to the connecting sleeve 802 and locked by a locking female 806, so as to facilitate the adjustment of the extension length of the adjusting head 805.

[0071] When the rotating arm 503 rotates, the distance between the front vertical arm 506 and the middle vertical arm 505 is always proportional to the distance between the rear vertical arm 504 and the middle vertical arm 505. The second displacement sensor 8 and the second hydraulic jack 507 can be selected to be relatively short to meet the needs.

[0072] In the preferred embodiment, a dividing disc 6 is arranged between the reference pile 4 and the guide frame device 5. The dividing disc 6 is provided with a plurality of connecting ears 601. The upper end of the reference pile 4 is provided with a plurality of positioning columns 401. The connecting ears 601 are clamped to the positioning columns 401 to be positioned. The positioning columns 401 are internally provided with a threadedly connected locking knob 9. The locking knob 9 is provided with a pressing block 901 extending outwardly to one side. One end of the connecting ear 601 is open. The locking knob 9 is rotated to press the upper end of the connecting ear 601 by the pressing block 901.

[0073] The connecting ear 601 is in a U-shaped structure. The upper end of the locking knob 9 is provided with a handle 902 extending outwardly in the same direction as the pressing block 901. The locking knob 9 is rotated to loosen the connecting ear 601. When the pressing block 901 is in the same direction as the opening of the connecting ear 601, the dividing disc 6 can be pulled out. Similarly, the dividing disc 6 can also be quickly installed.

[0074] The inside of the dividing disc 6 is connected with a worm gear. A worm is connected with an adjusting handle. A scale disc is sleeved on the adjusting handle to facilitate accurate adjustment of the angle.

[0075] In the preferred embodiment, a second hydraulic jack 507 is arranged between the middle vertical arm 505 and the rear vertical arm 504, and the two ends of the second hydraulic jack 507 are connected to the rear vertical arm 504 and the middle vertical arm 505 respectively to drive the rotation of the rotating arm frame.

[0076] The control system controls the pushing amount of the second hydraulic jack 507 through the pressure and flow control valve, so as to ensure that the second top roller 501 is tightly attached to the outer wall of the steel pipe pile 2.

[0077] Embodiment 2:

[0078] The construction method comprises the following steps:

[0079] S1, driving the steel casing 1 into the stratum, and measuring the center of the steel casing 1 on the plane of the multi-layer positioning device 3;

[0080] S2, installing the positioning device 3;

[0081] S3, connecting the signal transmission system and the control system, and clearing the stroke of the first hydraulic jack 303;

[0082] S4, inputting the center coordinates of the steel casing 1, the design center coordinates of the steel pipe pile 2, and the angle between the actual axis of the virtual cylinder composed of the plurality of positioning devices 3 and the design coordinate axis;

[0083] S5, the control system adjusts the stroke of the first hydraulic jack 303 according to the input information, so as to ensure that the center of the steel pipe pile 2 reaches the design position and the perpendicularity meets the requirements;

[0084] S6, inserting and driving the steel pipe pile 2;

[0085] S7, removing the positioning device 3 and pulling out the steel casing 1;

[0086] S8, repeating steps S1-S7 until all the steel pipe piles are constructed.

[0087] In the preferred embodiment, the method further comprises an expansion method:

[0088] S11, determining the required insertion and driving positions of a plurality of steel pipe piles 2;

[0089] S12, inserting and driving a reference pile 4 at the midpoint position of the adjacent steel pipe pile 2;

[0090] S13, selecting the position of the steel pipe pile 2 to be installed, and inserting and driving the steel casing 1 with the selected position as the center;

[0091] S14, arranging and installing the positioning device 3 on the outer wall of the steel casing 1 in a ring shape, and installing the positioning device 3 in multiple layers;

[0092] S15, installing the indexing turntable 6 on the reference pile 4 around the steel casing 1, and installing the guide frame device 5 on each indexing turntable 6;

[0093] S16, electrically connecting the positioning device 3 and the guide frame device 5 with the signal transmission system and the control system;

[0094] S17, the driving device moves the steel pipe pile 2 down into the steel casing 1 and approaches the stratum;

[0095] S18, according to the outer wall diameter of the steel pipe pile 2, the rotating arm frame of each guide frame device 5 is controlled to be folded towards the center to tightly adhere to the outer wall of the steel pipe pile 2;

[0096] S19, the driving device is horizontally moved to change the central axis position of the steel pipe pile 2, so that each second top roller 501 is tightly adhered to the outer wall of the steel pipe pile 2;

[0097] S110, inputting the center coordinates of the steel casing 1, the design center coordinates of the steel pipe pile 2, and the angle between the actual axis of the virtual column composed of multiple positioning devices 3 and the design coordinate axis;

[0098] S111, the control system adjusts the stroke of the first hydraulic jack 303 according to the input information to ensure that the center of the steel pipe pile 2 reaches the design position and the verticality meets the requirements;

[0099] S112, monitoring the value of the pressure sensor 508, and driving the steel pipe pile 2 by the driving device. Since the intersection of the four reference piles 4 coincides with the central axis of the steel casing 1 and the steel pipe pile 2 is vertical, theoretically, the pressure of the eight pressure sensors 508 is similar when driving. If some pressure sensors 508 vertically deviate, it means that the two sets of references do not correspond, and the driving position of the steel pipe pile 2 may be biased, which needs manual intervention for correction and inspection;

[0100] S113, removing the positioning device 3, pulling out the steel casing 1, and installing the steel casing 1 and the positioning device 3 to the position of the adjacent next steel pipe pile 2 to be installed;

[0101] S114, rotating the index turntable 6 on the reference pile 4 adjacent to the steel pipe pile 2, removing the index turntable 6 on the reference pile 4 not adjacent to the steel pipe pile 2, and installing the index turntable 6 on the reference pile 4 around the steel pipe pile 2;

[0102] S115, repeating S13-S114 until all steel pipe pile construction is completed, and removing the positioning device 3, the index turntable 6, and the guide frame device 5 and pulling out all the steel casings 1 and reference piles 4.

[0103] Embodiment 3:

[0104] A steel pipe pile automatic positioning device and its construction method, characterized by comprising a positioning system, a steel casing, a signal transmission system, and a control system;

[0105] The diameter of the steel casing is greater than the diameter of the steel pipe pile to be driven into the stratum.

[0106] The position adjusting system has two layers, each layer has four symmetrical position adjusting units, and is fixed on the steel casing;

[0107] The signal transmission system is connected with the position adjusting system at one end, receives the position signal of the position adjusting system, is connected with the control system at the other end, transmits the signal to the control system, and transmits the position signal transmitted by the control system to the position adjusting system;

[0108] After the steel casing is driven into the stratum, the center coordinates of the two layers of position adjusting units are recorded into the control system by measurement, the angle between the connecting line of the symmetrical position adjusting units and the axis of the coordinate system is recorded into the control system, the control system automatically calculates the perpendicularity of the steel casing according to the two center coordinates, and the center coordinates of the driven steel pipe pile are input into the control system in advance, the control system automatically calculates the difference between the center coordinates and the coordinates of the steel pipe pile, and adjusts the extension length of the position adjusting unit, so that the center of the steel pipe pile reaches the design position, and the two layers of position adjusting units can ensure that the perpendicularity of the steel pipe pile meets the design accuracy.

[0109] In the preferred scheme, the position adjusting system comprises a positioning plate, a roller, a roller fixing plate, a roller positioning plate, a jack, a hinged structure and a counterforce frame.

[0110] The position adjusting system is arranged in two layers, which can ensure that the perpendicularity of the steel pipe pile meets the requirements during the position adjustment;

[0111] The positioning plate is a circular arc plate with a hole in the middle, the inner diameter of which is the same as the outer diameter of the steel casing, and the positioning plate is connected with the steel casing through bolts, and a bolt hole is formed at the position of the bolt;

[0112] The roller is a circular arc pile roller with a small middle diameter and large diameters on both sides, and the radius of the circular arc is the same as the outer diameter of the steel pipe pile;

[0113] The roller fixing plate is a plate structure, the front end of which is connected with the two ends of the roller and fixes the roller, thereby restricting the displacement and rotation of the roller except the axis, so that the roller can only rotate along the axis, and the rear end is fixed with the roller positioning plate;

[0114] The roller positioning plate is a plate pile structure, the two ends of which are fixed with the roller fixing plate, and the rear end is fixed with the hinged structure, and the roller positioning plate is hingedly connected with the jack through the hinged structure;

[0115] The front section of the jack is provided with a hinged structure, the roller positioning plate is hingedly connected with the jack through the hinged structure, and each position adjusting unit has two jacks, the roller can be extended and rotated in the horizontal direction through the lifting of the two jacks;

[0116] The hinged structure is connected with the roller positioning plate and the jack respectively, so that the roller positioning plate can rotate in the horizontal direction;

[0117] The counterforce frame is fixed on the positioning plate and is fixedly connected with the jack inside.

[0118] In the preferred scheme, the steel casing is holed at the corresponding position of the roller, and the hole size is slightly larger than the roller.

[0119] In the preferred scheme, the signal transmission system can transmit the stroke data of the jack, and after the device positioning is cleared, the stroke data of the jack is transmitted to the control system, the computer converts the stroke data of the jack into the center data of the steel casing, compares the center coordinates of the steel casing with the design coordinates, obtains the stroke adjustment of the jack, and transmits the signal to the jack, so that the jack is adjusted to ensure that the center is aligned with the design coordinates when the steel pipe pile is driven in.

[0120] In the preferred scheme, the control system has a calculation function, and according to the stroke of the jack after being cleared, the center coordinates of the steel casing, the design center coordinates of the steel pipe pile, and the included angle information between the axis of the positioning unit and the design coordinate axis, the stroke of the jack corresponding to the center coordinates of the circle formed by the roller and the design center coordinates is calculated, and the signal is transmitted to the jack to automatically adjust.

[0121] In the preferred scheme, the positioning system has the following characteristics: the counterforce frame comprises a top and bottom plate, a jack support plate, a jack fixed plate, and a stiffened rib plate.

[0122] Each component of the counterforce frame is a plate structure.

[0123] The top and bottom plate is horizontal, the front section is a circular arc edge, the center and radius are the same as the steel casing, and the other three edges are straight lines, and the circular arc edge is fixed on the positioning plate.

[0124] The jack support plate is vertical, and the upper and lower ends are fixedly connected with the top and bottom plate, and the inside is fixed with the jack, serving as a jack support point.

[0125] The jack fixed plate is vertical, and the upper and lower ends are fixedly connected with the top and bottom plate, and is located in front of the jack support plate, and a hole is formed in the middle to fix the jack.

[0126] The stiffened rib plate is vertical and perpendicular to the jack fixed plate, and the upper and lower ends are fixedly connected with the top and bottom plate.

[0127] The above embodiments are only preferred technical solutions of the present application, and should not be regarded as a limitation of the present application, and the protection scope of the present application should be based on the technical solutions recited in the claims, including equivalent replacement schemes of the technical features recited in the claims. That is, within this range, equivalent replacement improvements are also within the protection scope of the present application.

Claims

1. A steel pipe pile automatic positioning system, characterized in that: The application relates to a steel pipe pile positioning system, which comprises a positioning system, a signal transmission system and a control system, wherein the positioning system comprises a steel casing (1), a plurality of positioning devices (3) are arranged on the side wall of the steel casing (1) in a circumferential direction, the positioning device (3) comprises an arc-shaped plate (305), the arc-shaped plate (305) is connected with the outer wall of the steel casing (1), a fixing frame (301) is arranged on the outer side of the arc-shaped plate (305), the arc-shaped plate (305) and the steel casing (1) are provided with opening portions, a moving frame (302) is arranged at the opening portion of the arc-shaped plate (305), a first top roller (304) is arranged at the end of the moving frame (302) and abuts against a steel pipe pile (2), a first displacement sensor (7) and at least two first hydraulic jacks (303) are arranged between the fixing frame (301) and the moving frame (302), the first hydraulic jacks (303) drive the moving frame (302) to move along the radial direction of the steel casing (1), and the first displacement sensor (7) is used for detecting the displacement of the moving frame (302). The positioning device (3) is arranged in a plurality of rows along the length direction of the steel casing (1). The positioning system further comprises a guide frame device (5), the guide frame device (5) is arranged higher than the positioning device (3), a plurality of reference piles (4) are arranged on the outer side of the steel casing (1) in a circumferential direction, the centers of the reference piles (4) are equidistant from the central axis of the steel casing (1), the guide frame device (5) is arranged on the reference pile (4), and the guide frame device (5) comprises a guide frame base (502), a rotating arm frame is arranged on the guide frame base (502), and a second top roller (501) is arranged at the end of the rotating arm frame and abuts against the outer wall of the steel pipe pile (2). The rotating arm frame comprises a rear vertical arm (504), a middle vertical arm (505) and a front vertical arm (506) arranged in parallel, the rear vertical arm (504), the middle vertical arm (505) and the front vertical arm (506) are hinged through at least two parallel rotating arms (503), the front vertical arm (506) is provided with at least two second top rollers (501), the connecting line of the contact points of the two second top rollers (501) and the steel pipe pile (2) is vertical, and a second hydraulic jack (507) is arranged between the middle vertical arm (505) and the rear vertical arm (504), the two ends of the second hydraulic jack (507) are connected with the rear vertical arm (504) and the middle vertical arm (505) respectively to drive the rotating arm frame to rotate.

2. The automatic positioning system for steel pipe pile according to claim 1, characterized in that: The distance between the rear vertical arm (504) and the middle vertical arm (505) is smaller than the distance between the front vertical arm (506) and the middle vertical arm (505), a second displacement sensor (8) is arranged on the middle vertical arm (505), the second displacement sensor (8) is provided with a movable telescopic measuring rod (801), a connecting sleeve (802) is arranged at the front end of the telescopic measuring rod (801), a retaining spring (804) is arranged between one end of the connecting sleeve (802) and the fixed body of the second displacement sensor (8), a roller (803) is arranged at the other end of the connecting sleeve (802), and the roller (803) rolls against the side wall of the rear vertical arm (504).

3. The automatic positioning system of the steel pipe pile according to claim 2, characterized in that a dividing disc (6) is arranged between the reference pile (4) and the guide frame device (5), the dividing disc (6) is provided with a plurality of connecting ears (601), the upper end of the reference pile (4) is provided with a plurality of positioning columns (401), the connecting ears (601) are clamped on the positioning columns (401) to be positioned, the positioning columns (401) are internally provided with a locking knob (9) connected by screw threads, the locking knob (9) is provided with a pressing block (901) extending to one side, one end of the connecting ear (601) is opened, and the locking knob (9) is rotated to press the upper end of the connecting ear (601) by the pressing block (901).

4. The automatic positioning system for steel pipe pile according to claim 3, characterized in that: The second top roller (501) is provided with a pressure sensor (508) at the contact position with the front vertical arm (506).

5. The automatic positioning system of the steel pipe pile according to claim 1, characterized in that a dividing disc (6) is arranged between the reference pile (4) and the guide frame device (5), the dividing disc (6) is provided with a plurality of connecting ears (601), the upper end of the reference pile (4) is provided with a plurality of positioning columns (401), the connecting ears (601) are clamped on the positioning columns (401) to be positioned, the positioning columns (401) are internally provided with a locking knob (9) connected by screw threads, the locking knob (9) is provided with a pressing block (901) extending to one side, one end of the connecting ear (601) is opened, and the locking knob (9) is rotated to press the upper end of the connecting ear (601) by the pressing block (901).

6. The use method of the automatic positioning system of the steel pipe pile according to claim 1 or 4, characterized in that: S1, the steel casing (1) is driven into the stratum, and the center of the steel casing (1) on the plane where the multi-layer positioning device (3) is located is measured; S2, the positioning device (3) is installed; S3, the signal transmission system and the control system are connected, and the stroke of the first hydraulic jack (303) is cleared; S4, the coordinates of the center of the steel casing (1), the designed coordinates of the center of the steel pipe pile (2), and the angle between the actual axis of the virtual cylinder composed of a plurality of positioning devices (3) and the designed coordinate axis are input; S5, the control system adjusts the stroke of the first hydraulic jack (303) according to the input information to ensure that the center of the steel pipe pile (2) reaches the designed position and the perpendicularity meets the requirements; S6, the steel pipe pile (2) is driven; S7, the positioning device (3) is removed, and the steel casing (1) is pulled out; S8, steps S1-S7 are repeated until all steel pipe pile constructions are completed.

7. The method of using the steel pipe pile automatic positioning system according to claim 6, characterized in that: Further comprising an extension method: S11, the required driving positions of a plurality of steel pipe piles (2) are determined; S12, a reference pile (4) is driven at the midpoint position of the adjacent steel pipe pile (2); S13, the position of the steel pipe pile (2) to be installed is selected, and the steel casing (1) is driven with the position as the center; S14, the positioning device (3) is arranged and installed on the outer wall of the steel casing (1) in a ring shape, and the positioning device (3) is installed in multiple layers; S15, the dividing disc (6) is installed on the reference pile (4) around the steel casing (1), and the guide frame device (5) is installed on each dividing disc (6); S16, the positioning device (3) and the guide frame device (5) are electrically connected with the signal transmission system and the control system. S17, the driving device moves the steel pipe pile (2) down into the steel casing (1) and approaches the stratum; S18, according to the outer wall diameter of the steel pipe pile (2), the rotating arm frame of each guide frame device (5) is controlled to be folded towards the center to tightly adhere to the outer wall of the steel pipe pile (2); S19, the driving device is horizontally moved to change the central axis position of the steel pipe pile (2), so that each second top roller (501) is tightly adhered to the outer wall of the steel pipe pile (2) to the same extent; S110, input the center coordinates of the steel casing (1), the designed center coordinates of the steel pipe pile (2), and the angle between the actual axis of the virtual column composed of the plurality of positioning devices (3) and the designed coordinate axis; S111, the control system adjusts the stroke of the first hydraulic jack (303) according to the input information to ensure that the center of the steel pipe pile (2) reaches the designed position and the perpendicularity meets the requirements; S112, monitor the value of the pressure sensor (508), and drive the steel pipe pile (2) by the driving device; S113, remove the positioning device (3), pull out the steel casing (1), and install the steel casing (1) and the positioning device (3) to the position of the adjacent next steel pipe pile (2) to be installed; S114, rotate the indexing turntable (6) on the reference pile (4) adjacent to the steel pipe pile (2), remove the indexing turntable (6) on the reference pile (4) not adjacent to the steel pipe pile (2), and install the indexing turntable (6) on the reference pile (4) around the steel pipe pile (2); S115, repeat S13-S114 until all steel pipe pile construction is completed, remove the positioning device (3), the indexing turntable (6) and the guide frame device (5), and pull out all steel casings (1) and reference piles (4).

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