Pile foundation pore-forming inspection device and construction method thereof

Abstract

The invention provides a pile foundation pore-forming inspection device and a construction method thereof, and relates to the technical field of pile foundation construction.The pile foundation pore-forming inspection device comprises an inspection main body, a supporting structure, a ground operation board and a hoisting steel wire measuring rope.The inspection main body is internally provided with a plurality of telescopic structures capable of stretching out of the inspection main body, and the telescopic structures are evenly distributed in the circumferential direction of the inspection main body; the telescopic structures are symmetrically arranged in pairs; one end of the hoisting steel wire measuring rope is connected with the detection main body, and the other end of the hoisting steel wire measuring rope is connected with the ground operation board through the steering pulley; the device has the beneficial effects that the operation is convenient, the construction efficiency is high, the construction safety is good, the hole-forming inspection requirements of pile foundations with different pile diameters can be met, and the device can be repeatedly utilized.

Description

Technical Field

[0001] The invention relates to the technical field of pile foundation construction, and in particular to a pile foundation hole forming inspection device and a construction method thereof. Background Art

[0002] With the acceleration of my country's urbanization process, the number of road and bridge projects in my country is increasing, and the scale is also expanding. To build high-quality road and bridge projects, it is necessary to grasp the key points of construction technology, take positive and effective construction measures, and improve the construction quality of municipal engineering roads and bridges. Municipal roads and bridges are generally located in bustling urban areas. During construction, they will have an impact on surrounding traffic. Affected by space and time, while ensuring the quality of municipal bridge construction, the construction progress should be accelerated and completed quickly. In bridge construction, pile foundation construction technology is of great significance to the quality assurance of municipal bridges. During construction, measures should be formulated for construction quality problems that arise and timely handling should be carried out to ensure the quality of piles.

[0003] After the pile foundation is drilled, the borehole needs to be inspected. The borehole inspection device generally uses a cage-type well caliper, which is generally made of Ф8 and Ф12 steel bars. The length is equal to 4 to 6 times the designed borehole diameter. At least one cage-type well caliper is made for each pile diameter and each drilling rig. In actual on-site construction, multiple sets of cage-type well calipers of different specifications need to be made. All cage-type well calipers are scrapped after use, resulting in great waste. If a collapsed hole is encountered during the pile foundation drilling process, it is impossible to accurately locate and measure the collapsed hole position. It can only be handled based on the experience of on-site construction personnel, which causes great difficulties for on-site processing. Summary of the invention

[0004] The object of the present invention is to provide a pile foundation hole inspection device and a construction method thereof. The preferred technical solution among the many technical solutions provided by the present invention can produce many technical effects as described in detail below.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] The present invention provides a pile foundation hole inspection device, comprising a detection body, a support structure, a ground operation panel and a hoisting wire measuring rope, wherein:

[0007] A plurality of telescopic structures capable of extending out of the detection body are arranged in the detection body, the telescopic structures are evenly distributed along the circumference of the detection body, and the telescopic structures are symmetrically arranged in groups of two;

[0008] A steering pulley is arranged on the supporting structure, one end of the hoisting wire measuring rope is connected to the detection body, and the other end of the hoisting wire measuring rope is connected to the ground operating panel through the steering pulley.

[0009] Preferably, each of the telescopic structures includes a rack and a gear, one end of the rack is arranged inside the detection body and is transmission-connected to the gear, the other end of the rack extends out of the detection body and is provided with a support foot, and the support foot is connected to the rack via a universal joint.

[0010] Preferably, each of the telescopic structures further comprises a forward and reverse motor and an inductor, wherein:

[0011] The forward and reverse motors are connected to the gears via a transmission shaft;

[0012] The sensor distance sensor and the axial pressure sensing device, the sensor is arranged at the transmission shaft;

[0013] The forward and reverse motors are connected to the ground operating panel via cables.

[0014] Preferably, the pile foundation hole inspection device further includes an emergency steel wire rope, an emergency steel wire main rope and an emergency steel wire rope connecting plate, wherein:

[0015] Each of the racks is provided with an emergency wire rope fixed end and an emergency wire rope diverting pulley;

[0016] One end of the emergency steel wire rope is fixed to the emergency steel wire rope fixed end, and the other end of the emergency steel wire rope passes through the emergency steel wire rope diverting pulley on another rack symmetrically arranged with the rack and is connected to the emergency steel wire rope connecting disk;

[0017] One side of the emergency wire rope connecting plate is connected to the emergency wire rope, and the other side is connected to the ground operating panel through the emergency wire main rope.

[0018] Preferably, the ground operating panel comprises a body, a first support frame arranged on the body, a second support frame and a support shaft arranged between the first support frame and the second support frame, and a cable take-up drum, a hoisting wire measuring rope take-up drum and an emergency wire main rope take-up drum are arranged on the support shaft, wherein:

[0019] The cable is connected to the cable take-up drum via the diverting pulley;

[0020] The emergency wire rope is connected to the emergency wire rope take-up drum through the diverting pulley;

[0021] The hoisting wire measuring rope is connected to the hoisting wire measuring rope take-up drum through the steering pulley.

[0022] Preferably, the ground operating panel further comprises a motor controller, a receiver and a display, wherein:

[0023] The motor controller is arranged on the first supporting frame;

[0024] The receiver and the display are arranged on the second supporting frame.

[0025] Preferably, the ground operating disk further comprises a turntable, and the turntable is arranged at one end of the supporting shaft.

[0026] Preferably, the supporting structure comprises a tripod, and the diverting pulley is arranged on the top of the tripod.

[0027] Preferably, the pile foundation hole inspection device further comprises a gripping device, and the gripping device is detachably arranged at the bottom of the detection body.

[0028] A construction method of the above-mentioned pile foundation hole inspection device comprises the following steps:

[0029] S1: Device assembly, including the detection body, support structure, ground operation panel and hoisting wire rope assembly;

[0030] S2: installing the racks, including selecting the racks according to the diameter of the pile foundation to be tested, and the diameter between the legs of each set of racks is at least 10 cm smaller than the diameter of the pile foundation to be tested;

[0031] S3: Turn on the power and check, including turning on the power and checking whether the motor, sensor, induction device, receiver and display can work normally;

[0032] S4: calibrating the racks, including making all the legs in the same circle and setting the reading of each rack in the display to zero;

[0033] S5: Calibrate the wire rope, including ensuring that the hoisting wire rope and the emergency wire rope are synchronized, and the motor cable is not shorter than the hoisting wire rope;

[0034] S6: Place the supporting structure into the pile foundation to be tested and conduct testing, including:

[0035] If a motor failure occurs during the detection process and the rack fails to reset, the rack is forced to retract by tightening the emergency wire rope.

[0036] The pile foundation hole inspection device and its construction method provided by the present invention include a detection body, a support structure, a ground operating panel and a hoisting wire measuring rope. A plurality of telescopic structures capable of extending out of the detection body are arranged in the detection body, the telescopic structures are evenly distributed along the circumference of the detection body, and the telescopic structures are arranged symmetrically in groups of two. A steering pulley is arranged on the support structure, one end of the hoisting wire measuring rope is connected to the detection body, and the other end of the hoisting wire measuring rope is connected to the ground operating panel through the steering pulley. When in use, the support structure is placed above the pile foundation hole, and the hoisting wire measuring rope slowly puts the detection body into the pile foundation to be inspected through the steering pulley for inspection. During inspection, the pile length is measured by the hoisting wire measuring rope; by setting up a plurality of telescopic structures, and symmetrically arranged in groups of two, the inspection requirements of different apertures can be met; by cooperating with the telescopic structure and the hoisting wire measuring rope, the local collapsed hole range can be accurately located and measured; by comparing the extended lengths of a plurality of telescopic structures, the offset of the center point of the pile foundation is calculated, thereby determining the verticality of the pile foundation, which can effectively save construction costs and reduce construction period under the premise of ensuring construction quality. After the inspection is completed, the ground operating panel is used to act on the hoisting wire measuring rope to recover the detection body and reuse it. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0038] Figure 1 It is a structural schematic diagram of an embodiment of a pile foundation hole inspection device of the present invention;

[0039] Figure 2 It is a schematic cross-sectional view of the pile foundation hole inspection device of the present invention;

[0040] Figure 3 It is a working principle diagram of the telescopic structure in the pile foundation hole inspection device of the present invention;

[0041] Figure 4 It is a structural schematic diagram of a ground operating panel in a pile foundation hole inspection device of the present invention;

[0042] Figure 5 It is a structural schematic diagram of a motor controller in a pile foundation hole inspection device of the present invention;

[0043] Figure 6 It is a structural schematic diagram of a receiver and a display in the pile foundation hole inspection device of the present invention.

[0044] In the figure: 1. detection body; 11. telescopic structure; 111. rack; 112. gear; 113. support foot; 114. universal joint; 115. forward and reverse motor; 116. sensor; 117. transmission shaft; 101. emergency wire rope fixed end; 102. emergency wire rope steering pulley;

[0045] 2. Support structure;

[0046] 3. Ground operation panel; 30. Main body; 31. First support frame; 32. Second support frame; 33. Support shaft; 34. Turntable; 35. Motor controller; 36. Receiver and display; 301. Cable take-up drum; 302. Hoisting wire measuring rope take-up drum; 303. Emergency wire main rope take-up drum;

[0047] 4. Hoisting wire rope; 5. Steering pulley; 6. Cable;

[0048] 71. Emergency wire rope; 72. Emergency wire rope; 73. Emergency wire rope connection plate;

[0049] 8. Grabbing device. DETAILED DESCRIPTION

[0050] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0051] Figure 1 Schematic diagram of the structure of this embodiment. Figure 1 As shown, the present invention provides a pile foundation hole inspection device, including a detection body 1, a support structure 2, a ground operating panel 3 and a hoisting wire measuring rope 4.

[0052] A plurality of telescopic structures 11 capable of extending out of the detection body 1 are arranged in the detection body 1 , the telescopic structures 11 are evenly distributed along the circumference of the detection body 1 , and the telescopic structures 11 are symmetrically arranged in groups of two.

[0053] A steering pulley 5 is provided on the supporting structure 2, one end of the hoisting wire measuring rope 4 is connected to the detection body 1, and the other end of the hoisting wire measuring rope 4 is connected to the ground operating panel 3 through the steering pulley 5. By setting the hoisting wire measuring rope 4, the depth of the pile foundation hole and the depth of the collapsed hole position can be read through the reading of the hoisting wire measuring rope 4 during inspection.

[0054] Optionally, the supporting structure 2 in this embodiment includes a tripod to provide sufficient supporting stability, and the diverting pulley 5 is arranged on the top of the tripod for easy use.

[0055] When using this pile foundation hole inspection device, the support structure 2 is placed above the pile foundation hole, and the hoisting wire measuring rope 4 slowly puts the detection body 1 into the pile foundation to be inspected through the steering pulley 5 for inspection. During the inspection, the length of the pile foundation is measured by the hoisting wire measuring rope 4; by setting up multiple telescopic structures 11, and symmetrically arranged in groups of two, the inspection requirements of different hole diameters can be met; the cooperation of the telescopic structure 11 and the hoisting wire measuring rope 4 can accurately locate and measure the local collapsed hole range; by comparing the extended lengths of multiple telescopic structures 11, the offset of the center point of the pile foundation is calculated, so as to determine the verticality of the pile foundation, which can effectively save construction costs and reduce construction period while ensuring construction quality. After the inspection is completed, the ground operating panel 3 acts on the hoisting wire measuring rope 4 to recover the detection body 1 for reuse.

[0056] As an optional implementation, Figure 2 yes Figure 1 The cross-sectional structural diagram of Figure 2 As shown, each telescopic structure 11 includes a rack 111 and a gear 112. One end of the rack 111 is arranged inside the detection body 1 and is transmission-connected to the gear 112. The other end of the rack 111 extends out of the detection body 1 and is provided with a support foot 113. The support foot 113 is connected to the rack 111 via a universal joint 114.

[0057] Specifically, in this embodiment, eight racks 111 are used to form four pairs of telescopic rods. The racks 111 are connected to the legs 113 on the outside of the detection body 1 by a universal joint 114. The racks 111 are driven by gears 112 to ensure that the racks 111 can be telescoped back and forth during use.

[0058] In this embodiment, Figure 3 It is the working principle diagram of the telescopic structure in this implementation, such as Figure 3 As shown, each telescopic structure 11 also includes a forward and reverse motor 115 and a sensor 116. The forward and reverse motor 115 is connected to the gear 112 through a transmission shaft 117; the sensor 116 includes a distance sensor and an axial pressure sensing device, and the distance sensor and the axial pressure sensing device are arranged on the transmission shaft 117; the eight forward and reverse motors 115 are connected to the ground operating panel 3 through a cable 6.

[0059] The gear 112 is driven by the forward and reverse motor 115 to drive the rack 111 to move back and forth, so as to achieve the purpose of detecting different pile diameters. In addition, in actual use, the detection of different pile diameters can be achieved by replacing racks of different lengths.

[0060] As an optional implementation, the pile foundation hole inspection device further includes an emergency steel wire rope 71 , an emergency steel wire main rope 72 and an emergency steel wire rope connecting plate 73 .

[0061] Among them, each rack 111 is provided with an emergency wire rope fixed end 101 and an emergency wire rope diverting pulley 102; each rack 111 is correspondingly provided with an emergency wire rope 71, one end of the emergency wire rope 71 of each rack 111 is fixed to the emergency wire rope fixed end 101, and the other end of the emergency wire rope 71 passes through the emergency wire rope diverting pulley 102 on another rack 111 arranged symmetrically with the rack 111 and is connected to the emergency wire rope connecting plate 73; one side of the emergency wire rope connecting plate 73 is connected to eight emergency wire ropes 71, and the other side is connected to the ground operating panel 3 through the emergency wire main rope 72.

[0062] As an optional implementation, Figure 4 Schematic diagram of the structure of the ground operating panel in this embodiment. Figure 4 As shown, the ground operating panel 3 includes a main body 30, a first support frame 31 and a second support frame 32 arranged on the main body 30, and a support shaft 33 arranged between the first support frame 31 and the second support frame 32, and a cable take-up drum 301, a hoisting wire measuring rope take-up drum 302 and an emergency wire main rope take-up drum 303 are arranged on the support shaft 33.

[0063] Among them, the cable 6 is connected to the cable take-up drum 301 through the steering pulley 5; the emergency wire main rope 72 is connected to the emergency wire main rope take-up drum 303 through the steering pulley 5; the hoisting wire measuring rope 4 is connected to the hoisting wire measuring rope take-up drum 302 through the steering pulley 5.

[0064] The main body 30 in this embodiment is made of square steel. Three coaxial wire take-up drums are arranged on the support shaft 33 of the ground operating panel 3. Preferably, a locking device is arranged between each wire take-up drum and the support shaft 33 to ensure that the three wire take-up drums can rotate independently or simultaneously.

[0065] Optionally, in this embodiment, the ground operating disk 3 also includes a turntable 34, and the turntable 34 is arranged at one end of the support shaft 33. By arranging the turntable on one side of the support shaft 33, it is convenient to perform line retracting and releasing operations by rotating the turntable 34.

[0066] As an optional implementation, Figure 5 is a schematic diagram of the structure of the motor controller in this embodiment, Figure 6 Schematic diagram of the structure of the receiver and the display in this embodiment. Figure 5 and Figure 6 As shown, the ground operation panel 3 also includes a motor controller 35, a receiver and a display 36. The motor controller 35 is arranged on the first support frame 31, and is used to effectively control the forward and reverse motors; the receiver and the display 36 are arranged on the second support frame 32, and are used to display the moving distance of each rack, so as to measure the hole diameter of the pile foundation.

[0067] As an optional implementation, the pile foundation hole inspection device in this embodiment further includes a grabbing device 8, which is detachably arranged at the bottom of the detection body 1. The grabbing device 8 is arranged to facilitate grabbing and sampling of pile bottom sediment and mud, facilitate on-site analysis, has a simple structure, is easy to use, and can greatly improve work efficiency.

[0068] During operation, the forward and reverse motor 115 is used to drive the gear 112 to drive the rack 111 and the support foot 113 to move. After the support foot 113 reaches the pile wall, a reverse force is generated. The gear 112 stops rotating through the axial pressure sensing device. The distance sensor measures the moving distance of the rack 111 by counting the number of rotations of the transmission shaft 117, and the distance moved by each rack 111 is displayed on the display through the receiver, so as to measure the hole diameter of the pile foundation; by comparing the extended lengths of each rack 111, it is determined whether the center of the pile foundation is offset, so as to measure the verticality of the pile foundation; at the same time, the range of the pile foundation collapse hole can be accurately measured; due to the limited travel of the rack 111, different lengths of racks can be replaced for different pile diameters to meet the measurement of different pile diameters. In addition, the grabbing device 8 can be used to grab and sample the sediment and mud at the bottom of the pile, which is convenient for on-site analysis. The emergency wire rope 71 can be used to manually force each rack 111 to retract, ensuring that the device can be smoothly removed in the event of a motor failure, making it safer, more convenient and more efficient to use.

[0069] A construction method of a pile foundation hole inspection device comprises the following steps:

[0070] S1: Device assembly, including assembly of the detection body 1, the ground operation panel 3 and the hoisting wire measuring rope 4;

[0071] Specifically, one end of the hoisting wire measuring rope 4 is connected to the detection body 1, and the other end is connected to the ground operating panel 3. Optionally, the detection body 1 in this embodiment is made of square steel, and a stainless steel plate is wrapped on the outside of the detection body 1 to increase its service life.

[0072] S2: installing the rack 111, including selecting the rack 111 according to the diameter of the pile foundation to be tested, and the diameter between the legs 113 of each set of racks 111 is at least 10 cm smaller than the diameter of the pile foundation to be tested;

[0073] It is understandable that when inspecting piles of different diameters, the rack 111 of corresponding length can be replaced according to the size of the pile diameter to meet the inspection requirements.

[0074] S3: Turn on the power and check, including turning on the power and checking whether the motor, sensor, induction device, receiver and display can work normally;

[0075] S4: Calibrate the rack 111, including making all the legs 113 located in the same circle and setting the reading of each rack in the display to zero; in this embodiment, calibration is performed on the ground so that the eight legs are located in the same circle.

[0076] S5: calibrating the wire rope, including ensuring that the hoisting wire rope 4 and the emergency wire rope 71 are synchronized, and the motor cable 6 is not shorter than the hoisting wire rope, and by setting the motor cable slightly longer than the hoisting wire rope, ensuring that the cable is not stressed;

[0077] S6: Place the supporting structure 2 into the pile foundation to be inspected for inspection. After the inspection is completed, retract the inspection device.

[0078] If a motor failure occurs during the detection process and the rack is not reset, the rack 111 is forced to retract by tightening the emergency wire rope 71 to ensure that the inspection device can be successfully retracted.

[0079] Clean the detection device promptly after each use to keep it clean; disassemble and assemble the detection device to facilitate storage and maintenance, avoid material waste, and save costs.

[0080] This construction method, through the pile foundation hole inspection device, has the advantages of convenient overall material acquisition, simple production, easy operation, high construction efficiency, good construction safety, and can meet the pile foundation hole inspection requirements of different pile diameters. The device is reusable and can not only detect the pile foundation depth and different pile diameters and verticality, but also accurately measure the location and range of the pile foundation collapse hole, thereby improving the problem of the single function of the conventional pile foundation cage caliper.

[0081] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A pile foundation hole inspection device, characterized in that: It includes the detection body, supporting structure, ground operation panel and hoisting wire rope, including: A plurality of telescopic structures capable of extending out of the detection body are arranged in the detection body, the telescopic structures are evenly distributed along the circumference of the detection body, and the telescopic structures are symmetrically arranged in groups of two; A steering pulley is arranged on the supporting structure, one end of the hoisting wire measuring rope is connected to the detection body, and the other end of the hoisting wire measuring rope is connected to the ground operating panel through the steering pulley.

2. The pile foundation hole inspection device according to claim 1, characterized in that: Each of the telescopic structures includes a rack and a gear, one end of the rack is arranged inside the detection body and is transmission-connected to the gear, the other end of the rack extends out of the detection body and is provided with a support foot, and the support foot is connected to the rack through a universal joint.

3. The pile foundation hole inspection device according to claim 2, characterized in that: Each of the telescopic structures also includes a forward and reverse motor and an inductor, wherein: The forward and reverse motors are connected to the gears via a transmission shaft; The sensor distance sensor and the axial pressure sensing device, the sensor is arranged at the transmission shaft; The forward and reverse motors are connected to the ground operating panel via cables.

4. The pile foundation hole inspection device according to claim 3, characterized in that: The pile foundation hole inspection device also includes an emergency steel wire rope, an emergency steel wire main rope and an emergency steel wire rope connecting plate, wherein: Each of the racks is provided with an emergency wire rope fixed end and an emergency wire rope diverting pulley; One end of the emergency steel wire rope is fixed to the emergency steel wire rope fixed end, and the other end of the emergency steel wire rope passes through the emergency steel wire rope diverting pulley on another rack symmetrically arranged with the rack and is connected to the emergency steel wire rope connecting disk; One side of the emergency wire rope connecting plate is connected to the emergency wire rope, and the other side is connected to the ground operating panel through the emergency wire main rope.

5. The pile foundation hole inspection device according to claim 4, characterized in that: The ground operation panel includes a body, a first support frame and a second support frame arranged on the body, and a support shaft arranged between the first support frame and the second support frame, and a cable take-up drum, a hoisting wire measuring rope take-up drum and an emergency wire main rope take-up drum are arranged on the support shaft, wherein: The cable is connected to the cable take-up drum via the diverting pulley; The emergency wire rope is connected to the emergency wire rope take-up drum through the diverting pulley; The hoisting wire measuring rope is connected to the hoisting wire measuring rope take-up drum through the steering pulley.

6. The pile foundation hole inspection device according to claim 5, characterized in that: The ground operating panel also includes a motor controller, a receiver and a display, wherein: The motor controller is arranged on the first supporting frame; The receiver and the display are arranged on the second supporting frame.

7. The pile foundation hole inspection device according to claim 5 or 6, characterized in that: The ground operating panel also includes a turntable, and the turntable is arranged at one end of the supporting shaft.

8. The pile foundation hole inspection device according to any one of claims 1 to 6, characterized in that: The supporting structure comprises a tripod, and the diverting pulley is arranged on the top of the tripod.

9. The pile foundation hole inspection device according to any one of claims 1 to 6, characterized in that: The pile foundation hole inspection device also includes a gripping device, and the gripping device is detachably arranged at the bottom of the detection body.

10. A construction method of the pile foundation hole inspection device according to any one of claims 1 to 9, characterized in that: The steps include: S1: Device assembly, including the detection body, support structure, ground operation panel and hoisting wire rope assembly; S2: installing the racks, including selecting the racks according to the diameter of the pile foundation to be tested, and the diameter between the legs of each set of racks is at least 10 cm smaller than the diameter of the pile foundation to be tested; S3: Turn on the power and check, including turning on the power and checking whether the motor, sensor, induction device, receiver and display can work normally; S4: calibrating the racks, including making all the legs in the same circle and setting the reading of each rack in the display to zero; S5: Calibrate the wire rope, including ensuring that the hoisting wire rope and the emergency wire rope are synchronized, and the motor cable is not shorter than the hoisting wire rope; S6: Place the supporting structure into the pile foundation to be tested and conduct testing, including: If a motor failure occurs during the detection process and the rack fails to reset, the rack is forced to retract by tightening the emergency wire rope.

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