An internal support device for the steel cage of a UHV cast-in-place pile foundation

Abstract

The invention provides an internal support device for a steel cage of an ultra-high voltage bored pile foundation, and relates to the technical field of steel cage pouring reinforcement; the device comprises a support connector, on which a traction side measuring part is installed; on which an anchoring driving part is fixedly installed; the anchoring driving part is located below the traction side measuring part; on which three anchoring propulsion parts are installed; the three anchoring propulsion parts are respectively attached to the anchoring driving part, and the support connector can perform anchoring and reinforcement work on the steel cage, and can improve the construction quality of wind turbine tower foundation piles, and can utilize the anchoring method to ensure that each section of the steel cage is concentric with the pile foundation hole, and the movable anchoring structure is more suitable for supporting and reinforcing deep foundation piles; the problem that the current internal support device for the steel cage is not convenient for realizing automatic control of anchoring the steel cage and the overall installation error of the steel cage is large is solved.

Description

Technical Field

[0001] The invention relates to the technical field of reinforcement cage pouring, and in particular to an internal support device for a reinforcement cage of an ultra-high voltage bored pile foundation. Background Art

[0002] In the actual construction of the generator tower, the foundation construction of the generator tower is usually constructed by ultra-high voltage deep foundation pile pouring. First, the pile foundation is drilled on the ground, and then a steel cage is placed in the pile foundation hole. It is necessary to set a steel cage in the pile foundation hole for pouring. The tensile strength of the pile is improved by the steel cage. During the pouring construction, the support steel cage must be positioned in real time to ensure the pouring quality. The steel cage is usually adjusted by an external steel cage support device. The current steel cage support device is not convenient for realizing internal automatic control of anchoring the steel cage. The overall installation error of the deep foundation steel cage is large, especially for the deep foundation pile of the generator tower. The lower steel cage is easily squeezed by concrete and other factors and fits on the pile foundation hole wall, affecting the pouring quality. At the same time, it is not convenient to carry out mobile and comprehensive anchoring of the steel cage. The pile foundation has poor stability and is prone to settlement. It is also not convenient to use lead gravity for tilt detection. Errors in the steel cage in the pile foundation hole are not easy to detect. Summary of the invention

[0003] The disclosed embodiment relates to an internal support device for a steel cage of an ultra-high voltage bored pile foundation, wherein the support connector can perform anchoring and reinforcement work on the steel cage, thereby improving the construction quality of the wind turbine tower pile foundation, and can utilize anchoring to ensure that each section of the steel cage is concentric with the pile foundation hole, and the movable anchoring structure is more suitable for supporting and reinforcing deep foundation piles.

[0004] The present disclosure provides an internal support device for a steel cage of a UHV bored pile foundation, specifically comprising a support connecting piece, a traction side measuring part being installed on the support connecting piece; an anchor driving part being fixedly installed on the support connecting piece; the anchor driving part being located below the traction side measuring part; three anchor propulsion pieces being installed on the support connecting piece; the three anchor propulsion pieces being respectively attached to the anchor driving part; a lead sinker connecting piece being fixedly installed on the bottom of the anchor driving part; an offset measuring part being installed on the lead sinker connecting piece; the offset measuring part being used for side measurement of the inclination of the support connecting piece; the support connecting piece comprising: a sliding mounting block, a stacking groove, an anchor discharge groove and an anchor pin, the sliding mounting block being a cylindrical structure; three stacking grooves being provided on the sliding mounting block; three anchor discharge grooves being provided on the sliding mounting block, and the three anchor discharge grooves being respectively aligned with the three stacking grooves; a row of anchor pins being stacked inside each of the three stacking grooves.

[0005] In at least some embodiments, the anchoring pusher includes: a pusher block, a sliding shaft and a sloped fitting block, the pusher block is slidably mounted on the anchoring discharge groove; the outer top of the pusher block is a sloped structure; the pusher block is used to push the anchor pin; two sliding shafts are fixedly mounted on the pusher block; the two sliding shafts are respectively slidably inserted on the sliding mounting block; a sloped fitting block is fixedly mounted on the inner side of the pusher block; the inner side of the sloped fitting block is a sloped structure; the inner side of the sloped fitting block is attached to the expansion extrusion block.

[0006] In at least some embodiments, the traction side measuring part includes: a traction mounting frame and a traction rope, the traction mounting frame is fixedly mounted on the sliding mounting block by bolts; the traction rope is fixedly mounted on the traction mounting frame; the traction rope is provided with scale lines; the traction rope is used to measure the depth of the pile foundation hole.

[0007] In at least some embodiments, the anchoring propulsion member further includes: a support spring, and the two sliding shafts are respectively sleeved with support springs; the support spring is used to press the inclined surface fitting block against the expansion extrusion block.

[0008] In at least some embodiments, the supporting connector also includes: a plug-in anchor shaft, a main reinforcement limiting strip, a main reinforcement and stirrups, and the anchor pin is a "U"-shaped structure; the two ends of the three rows of anchor pins are respectively fixedly installed with a plug-in anchor shaft, and the diameter of the plug-in anchor shaft is smaller than the anchor pin; the main reinforcement is provided with a circle, and the circle of main reinforcement is respectively located on the outside of the sliding mounting block; the anchor pin is used to position the anchor main reinforcement; a circle of main reinforcement limiting strips is fixedly installed on the sliding mounting block, and a circle of main reinforcement limiting strips is grouped in pairs, and a total of three groups are provided; the three groups of main reinforcement limiting strips are respectively aligned with the three anchor discharge grooves; the inner sides of the three groups of main reinforcement limiting strips are respectively fitted with the adjacent main reinforcements; stirrups are respectively welded on the circle of main reinforcements.

[0009] In at least some embodiments, the anchoring drive unit includes: an anchoring control hydraulic cylinder and an anchoring sliding column, the anchoring control hydraulic cylinder is fixedly installed inside the sliding mounting block through a bracket; an anchoring sliding column is fixedly installed on the output shaft of the anchoring control hydraulic cylinder; and the anchoring sliding column is located inside the sliding mounting block.

[0010] In at least some embodiments, the lead sinker connecting piece includes: a lead sinker connecting tube, a ball sleeve holder, an adapter ball head and a lead sinker ball, the lead sinker connecting tube is fixedly installed at the bottom of the expansion extrusion block; a ball sleeve holder is fixedly installed inside the lead sinker connecting tube, and a spherical groove is provided in the middle of the ball sleeve holder; an adapter ball head is sleeved on the ball sleeve holder; a lead sinker ball is fixedly installed at the bottom of the adapter ball head; six sockets are provided on the outside of the lead sinker ball.

[0011] In at least some embodiments, the offset measuring unit further includes: a reset spring, which is respectively sleeved on the inner side of a socket opened on the outer side of the lead ball; and the reset spring is connected between the socket opened on the outer side of the lead ball and the offset measuring shaft.

[0012] In at least some embodiments, the anchoring drive unit further includes: an expansion extrusion block, which is fixedly mounted at the bottom of the anchoring sliding column; the outer side of the expansion extrusion block is a slope structure; and the expansion extrusion block is used to control the outward expansion of the three anchoring propulsion members.

[0013] In at least some embodiments, the offset measuring part includes: an offset measuring shaft and a digital displacement sensor, the offset measuring shaft is slidably inserted into a socket opened on the outside of the lead sinker ball; the end of the offset measuring shaft is an arc structure; the end of the offset measuring shaft is attached to the lead sinker connecting tube; a digital displacement sensor is fixedly installed inside the offset measuring shaft, and the measuring end of the digital displacement sensor is connected to the inner side of the socket opened on the outside of the lead sinker ball; the digital displacement sensor is externally connected to a digital display screen; the digital displacement sensor is used to detect the offset of the digital displacement sensor.

[0014] The present invention provides an internal support device for a steel cage of an ultra-high voltage bored pile foundation, which has the following beneficial effects:

[0015] The present invention adopts a traction side measuring part, which can be used to pull the sliding installation block upward to recover the sliding installation block. At the same time, it can be used to detect the depth of the pile foundation hole, which is convenient for understanding the depth parameters of the pile foundation hole and avoiding the pile foundation hole from collapsing without being discovered before lowering the steel cage. By setting a row of anchor pins inside the anchor discharge groove, the anchoring work can be controlled according to the anchor quantity requirement, the stability of the steel cage can be improved, and the foundation pile and the pile foundation hole have a stronger anti-slip effect after the pouring process, thereby reducing the risk of settlement.

[0016] In addition, the use of anchoring propulsion devices can perform automatic anchoring reinforcement work. At the same time, anchoring work can be achieved by moving the steel cage along the axial direction of the foundation pile. It is not affected by the length of the steel cage and is more suitable for anchoring steel cages in deep foundations such as wind turbines. By moving and anchoring point by point, the anchoring accuracy is improved to ensure that each position of the steel cage can be concentric with the pile foundation hole, avoiding local deformation of the steel cage and sticking to the inner wall of the pile foundation hole, which affects the pouring quality. The stacking groove can be used to store multiple anchor pins at one time to ensure anchoring efficiency.

[0017] In addition, the offset measurement unit is used in conjunction with a lead sinker connector. The characteristic of the lead sinker allows it to sag under the action of gravity. This characteristic can be used to detect the inclination of the sliding mounting block and the steel cage. It is not limited by the depth of the deep foundation, and local deflection can be avoided without being discovered. The inclination detection work can be performed at one time, making it easier for staff to know the installation status of the steel cage support. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0019] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0020] In the attached picture:

[0021] Figure 1 A schematic diagram showing the overall structure of the present application;

[0022] Figure 2 A schematic diagram showing the bottom structure of the present application;

[0023] Figure 3 A cross-sectional view showing the internal structure of the present application;

[0024] Figure 4 A schematic diagram showing the structure of the traction side measuring part of the present application is shown;

[0025] Figure 5 A schematic diagram showing the supporting connecting member structure of the present application is shown;

[0026] Figure 6 A schematic diagram showing the structure of the anchoring drive unit of the present application is shown;

[0027] Figure 7 A cross-sectional view showing the internal structure of the anchoring drive unit of the present application;

[0028] Figure 8 A schematic diagram showing the structure of the anchor propulsion member of the present application is shown;

[0029] Fig. 9 A schematic diagram showing the structure of the lead sinker connector of the present application is shown;

[0030] Fig.10 This application shows Figure 3 A magnified view of the structure of the middle C region;

[0031] Fig.11 A cross-sectional view showing the structure of the offset measuring portion of the present application;

[0032] Fig.12 This application shows Figure 3 Enlarged view of the structure of region E in the middle.

[0033] Reference numerals list

[0034] 1. Support connector; 101. Sliding mounting block; 1011. Stacking groove; 1012. Anchor discharge groove; 102. Anchor pin; 1021. Plug-in anchor shaft; 103. Main reinforcement limit strip; 104. Main reinforcement; 105. Hoop reinforcement; 2. Traction side measurement unit; 201. Traction mounting frame; 202. Traction rope; 3. Anchor drive unit; 301. Anchor control hydraulic cylinder; 302. Anchor sliding column; 303. Expansion extrusion block; 4. Anchor pusher; 401. Pusher block; 4011. Sliding shaft; 402. Inclined fitting block; 403. Support spring; 5. Sink connector; 501. Sink connecting tube; 502. Ball sleeve holder; 503. Adapter ball head; 504. Sink ball; 6. Offset measurement unit; 601. Offset measurement shaft; 602. Digital displacement sensor; 603. Reset spring. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] Example 1: Please refer to Figures 1 to 12 :

[0037] The present invention proposes an internal support device for a steel cage of a UHV bored pile foundation, comprising a support connector 1, on which a traction side measuring part 2 is installed; an anchor driving part 3 is fixedly installed on the support connector 1; the anchor driving part 3 is located below the traction side measuring part 2; three anchor propulsion members 4 are installed on the support connector 1; the three anchor propulsion members 4 are respectively attached to the anchor driving part 3; a plumb bob connector 5 is fixedly installed at the bottom of the anchor driving part 3; an offset measuring part 6 is installed on the plumb bob connector 5; the offset measuring part 6 is provided with a plurality of anchoring members 4, and the plurality of anchoring members 4 are provided with a plurality of anchoring members 4. 6 is used to measure the inclination of the supporting connector 1 from the side; the supporting connector 1 includes: a sliding mounting block 101, a stacking groove 1011, an anchoring discharge groove 1012 and an anchoring pin 102, the sliding mounting block 101 is a cylindrical structure; three stacking grooves 1011 are provided on the sliding mounting block 101; three anchoring discharge grooves 1012 are provided on the sliding mounting block 101, and the three anchoring discharge grooves 1012 are respectively aligned with the three stacking grooves 1011; a row of anchoring pins 102 are stacked inside the three stacking grooves 1011 respectively.

[0038] In the embodiment of the present disclosure, the supporting connector 1 further includes: a plug-in anchoring shaft 1021, a main reinforcement limiting strip 103, a main reinforcement 104 and a stirrup 105, and the anchoring pin 102 is a "U"-shaped structure; the two ends of the three rows of anchoring pins 102 are respectively fixedly installed with a plug-in anchoring shaft 1021, and the plug-in anchoring shaft 1021 has a smaller diameter than the anchoring pin 102; the main reinforcement 104 is provided with a circle, and the circle of main reinforcement 104 is respectively located on the outside of the sliding mounting block 101; the anchoring pin 102 is used for positioning Anchor the main reinforcement 104; a circle of main reinforcement limit strips 103 is fixedly installed on the sliding mounting block 101, and a circle of main reinforcement limit strips 103 is a group of two, and there are three groups in total; the three groups of main reinforcement limit strips 103 are respectively aligned with the three anchor discharge grooves 1012; the inner sides of the three groups of main reinforcement limit strips 103 are respectively fitted with the main reinforcement 104 that is close to each other; stirrups 105 are respectively welded on a circle of main reinforcement 104; the main reinforcement 104 and the stirrups 105 are welded to form a steel cage; the traction side measurement part 2 It includes: a traction mounting frame 201 and a traction rope 202, the traction mounting frame 201 is fixedly installed on the sliding mounting block 101 by bolts; the traction rope 202 is fixedly installed on the traction mounting frame 201; the traction rope 202 is provided with a scale line; the traction rope 202 is used to measure the depth of the pile foundation hole, and the traction side measuring part 2 is used to pull the sliding mounting block 101 upward to recover the sliding mounting block 101, and can also be used to detect the depth of the pile foundation hole, so as to understand the pile foundation hole depth parameters and avoid the pile foundation hole from collapsing without being discovered before lowering the steel cage. At the same time, a row of anchor pins 102 are arranged inside the anchor discharge groove 1012, so that the anchoring work can be controlled according to the anchoring quantity requirements, the stability of the steel cage can be improved, and the foundation pile and the pile foundation hole have a stronger anti-slip effect after the pouring process, thereby reducing the settlement risk, and the anchor pin 102 can be used to cooperate with the plug-in anchor shaft 1021 to quickly carry out the anchoring work.

[0039] In the embodiment of the present disclosure, the anchor driving unit 3 includes: an anchor control hydraulic cylinder 301 and an anchor sliding column 302. The anchor control hydraulic cylinder 301 is fixedly installed inside the sliding mounting block 101 through a bracket; the anchor sliding column 302 is fixedly installed on the output shaft of the anchor control hydraulic cylinder 301; the anchor sliding column 302 is located inside the sliding mounting block 101; the anchor driving unit 3 also includes: an expansion extrusion block 303, the expansion extrusion block 303 is fixedly installed at the bottom of the anchor sliding column 302; the outer side of the expansion extrusion block 303 is an inclined structure; the expansion extrusion block 303 is used to control the three anchor propulsion members 4 to expand outward; the anchor propulsion member 4 includes: a propulsion block 401, a sliding shaft 4011 and an inclined surface bonding block 402, the propulsion block 401 is slidably installed on the anchor sliding column 302 On the discharge groove 1012; the outer top of the push block 401 is a slope structure; the push block 401 is used to push the anchor pin 102; two sliding shafts 4011 are fixedly installed on the push block 401; the two sliding shafts 4011 are respectively slidably inserted on the sliding mounting block 101; the inner side of the push block 401 is fixedly installed with a sloped bonding block 402; the inner side of the sloped bonding block 402 is a sloped structure; the inner side of the sloped bonding block 402 is attached to the expansion extrusion block 303; the anchoring pusher 4 also includes: a support spring 403, and the two sliding shafts 4011 are respectively sleeved with support springs 403; the support spring 403 is used to squeeze the sloped bonding block 402 to stick to the expansion extrusion block 303. The anchoring pusher 4 can be used to perform automatic anchoring reinforcement work, and at the same time can realize The steel cage is now moved axially along the foundation pile for anchoring work, which is not affected by the length of the steel cage and is more suitable for anchoring steel cages of deep foundation piles such as wind turbines. The anchoring accuracy can be improved by moving the point-by-point anchoring method to ensure that each position of the steel cage can be concentric with the pile foundation hole, and to avoid local deformation of the steel cage and sticking to the inner wall of the pile foundation hole, which affects the pouring quality. At the same time, the structure utilizes the stacking groove 1011, which can store multiple anchor pins 102 at one time, ensuring the anchoring efficiency. The anchoring positioning method of the structure also plays a role in axially limiting the steel cage to avoid the steel cage from sinking after pouring high-pressure concrete. The anchoring control hydraulic cylinder 301 is started to drive the expansion extrusion block 303 to extrude the inclined surface fitting block 402. At this time, the inclined surface fitting block 402 is squeezed outward by the inclined surface The push block 401 is used to push out the anchor pin 102 and insert the inserted anchor shaft 1021 into the inner wall of the pile foundation hole, thereby playing the role of concentrically positioning the main reinforcement 104. At the same time, the positioning and anchoring of the anchor pin 102 can also limit the stirrups 105 to prevent a large amount of sinking of the steel cage. The push block 401 can be inserted into the anchor discharge groove 1012 to push out the anchor pin 102 at the bottom. At the same time, when the expansion and extrusion block 303 moves downward, the push block 401 can be retracted and reset inward with the extrusion of the support spring 403 until the push block 401 does not block the stacking groove 1011. At this time, the anchor pin 102 located in the stacking groove 1011 naturally falls, and the anchor pin 102 located at the bottom can be pushed out again by the push block 401 for anchoring.

[0040] Embodiment 2, on the basis of embodiment 1, the plumb bob connector 5 comprises: a plumb bob connector 501, a ball sleeve holder 502, an adaptor ball head 503 and a plumb bob ball 504, the plumb bob connector 501 is fixedly mounted at the bottom of the expansion extrusion block 303; a ball sleeve holder 502 is fixedly mounted inside the plumb bob connector 501, and a spherical groove is provided in the middle of the ball sleeve holder 502; an adaptor ball head 503 is sleeved on the ball sleeve holder 502; a plumb bob ball 504 is fixedly mounted at the bottom of the adaptor ball head 503; six jacks are provided on the outer side of the plumb bob ball 504; The displacement measuring part 6 comprises: an offset measuring shaft 601 and a digital displacement sensor 602. The digital displacement sensor 602 can be a KPM type displacement sensor. The offset measuring shaft 601 is slidably inserted into a socket opened outside the lead ball 504. The end of the offset measuring shaft 601 is an arc-shaped structure. The end of the offset measuring shaft 601 is attached to the lead connecting tube 501. The digital displacement sensor 602 is fixedly installed inside the offset measuring shaft 601, and the measuring end of the digital displacement sensor 602 is connected to the inner side of the socket opened outside the lead ball 504. The digital displacement sensor 602 is connected to the inner side of the socket opened outside the lead ball 504. The sensor 602 is externally connected to a digital display screen; the digital displacement sensor 602 is used to detect the displacement of the digital displacement sensor 602; the displacement measuring unit 6 also includes: a reset spring 603, which is respectively sleeved on the inner side of the jack opened on the outer side of the lead ball 504; the reset spring 603 is connected between the jack opened on the outer side of the lead ball 504 and the displacement measuring shaft 601, and the displacement measuring unit 6 is used in conjunction with the lead connecting piece 5, and the characteristics of the lead can be used to sag under the action of gravity, so that the tilt detection of the sliding mounting block 101 and the steel cage is performed based on this characteristic. It is not limited by the depth of the deep foundation, avoids local deflection without being discovered, and can perform inclination detection at one time, which makes it easier for staff to know the installation status of the steel cage support. The digital displacement sensor 602 can be used for accurate detection. The sliding mounting block 101 can drive the lead pendant connecting tube 501 to tilt. At this time, the positions of the lead pendant connecting tube 501 and the lead pendant ball 504 change. At this time, the lead pendant ball 504 can drive the offset measurement shaft 601 to squeeze the digital displacement sensor 602 to perform detection, and the structural detection is stable.

[0041] The working principle of this embodiment is as follows: first, place the sliding installation block 101 directly in the pile foundation hole, hold or use a winch to connect the observation traction rope 202, lower the sliding installation block 101 to the bottom of the hole, and observe the scale of the traction rope 202 to measure the hole depth; place the main reinforcement 104 and stirrups 105 in the pile foundation hole, and limit the inner sides of the three sets of main reinforcement limit strips 103 by fitting them to the main reinforcement 104 respectively, ensuring that the middle of the anchor pin 102 is inserted into the main reinforcement 104, so that the main reinforcement 104 can be lifted and pulled. The pulling rope 202 is pulled, and the height is observed to control the anchoring position. The anchoring control hydraulic cylinder 301 is started to drive the expansion extrusion block 303 to move upward. At this time, the expansion extrusion block 303 squeezes the inclined surface fitting block 402. At this time, the inclined surface fitting block 402 is squeezed outward by the inclined surface, driving the propulsion block 401 to push out the anchor pin 102, and insert the plug-in anchor shaft 1021 into the inner wall of the pile foundation hole. At this time, the plug-in anchor shaft 1021 is smaller in diameter than the anchor pin 102, and the three anchor pins 102 will not be The three anchor pins 102 are of equal length and can play the role of concentrically positioning the main reinforcement 104. At the same time, the positioning and anchoring of the anchor pins 102 can also limit the stirrups 105 to prevent the steel cage from sinking a lot. The push block 401 can be inserted into the anchor discharge groove 1012 to push out the anchor pin 102 at the bottom and squeeze and insert the anchor shaft 1021 for anchoring. At the same time, when the expansion and extrusion block 303 moves downward, the push block 401 can be retracted and reset inward with the support spring 403 until the push block 401 does not block the stacking groove 1011. At this time, the anchor pin 102 located in the stacking groove 1011 naturally falls down and can be pushed out again by the push block 401. In this way, anchoring is performed again, and the push and anchoring work of the anchor shaft 1021 is continuously performed. During the process, the traction rope 202 is lifted to drive the sliding installation block 101 to move to adjust the anchor spacing.

[0042] When the sliding mounting block 101 is lowered, if the sliding mounting block 101 is skewed, the sliding mounting block 101 can drive the plumb bob connecting tube 501 to tilt. At this time, the positions of the plumb bob connecting tube 501 and the plumb bob ball 504 change, and the adapter ball head 503 rotates in the ball sleeve retaining frame 502. At this time, the plumb bob ball 504 can drive the offset measuring shaft 601 on the offset side to fit and squeeze the plumb bob connecting tube 501; the offset measuring shaft 601 on the offset side shrinks inward and squeezes the digital displacement sensor 602. The digital display screen data on the digital displacement sensor 602 with the largest shrinkage can be observed to judge the tilt of the sliding mounting block 101. After the sliding mounting block 101 returns to the horizontal state, under the squeezing of the reset spring 603, the offset measuring shaft 601 can continue to elastically fit the plumb bob connecting tube 501 to ensure continuous detection.

[0043] In this article, there are a few points to note:

[0044] 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0045] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0046] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. An internal support device for a steel cage of an ultra-high voltage bored pile foundation, comprising a support connector (1), wherein a traction side measuring portion (2) is mounted on the support connector (1); the characteristics are as follows: An anchoring drive unit (3) is installed on the supporting connection member (1); the anchoring drive unit (3) is located below the traction-side measuring unit (2); Three anchoring propulsion members (4) are installed on the supporting connection member (1); the three anchoring propulsion members (4) are respectively attached to the anchoring driving part (3); A lead sinker connector (5) is fixedly mounted on the bottom of the anchoring drive part (3); The plumb connecting member (5) is provided with a deflection measuring part (6); the deflection measuring part (6) is used to measure the inclination of the supporting connecting member (1); The supporting connection member (1) comprises: a sliding installation block (101), a stacking groove (1011), an anchoring discharge groove (1012) and an anchoring pin (102); the sliding installation block (101) is a cylindrical structure; three stacking grooves (1011) are provided on the sliding installation block (101); three anchoring discharge grooves (1012) are provided on the sliding installation block (101), and the three anchoring discharge grooves (1012) are respectively aligned with the three stacking grooves (1011); a row of anchoring pins (102) are stacked inside the three stacking grooves (1011); an anchoring pusher (4) is inserted into the anchoring discharge groove (1012) to push out the anchoring pin (102) at the bottom, and the anchoring pin (102) located in the stacking groove (1011) falls naturally, and the anchoring pin (102) located at the bottom is pushed out again by the anchoring pusher (4) to perform anchoring work.

2. The internal support device for the steel cage of a UHV bored pile foundation according to claim 1, characterized in that: The supporting connector (1) further comprises: a plug-in anchoring shaft (1021), a main reinforcement limiting strip (103), a main reinforcement (104) and stirrups (105); the anchoring pin (102) is a "U"-shaped structure; the two ends of the three rows of anchoring pins (102) are respectively fixedly mounted with a plug-in anchoring shaft (1021), and the diameter of the plug-in anchoring shaft (1021) is smaller than that of the anchoring pin (102); the main reinforcement (104) is provided with a circle, and the circle of main reinforcement (104) is respectively located on the outside of the sliding mounting block (101) ; The anchor pin (102) is used to position and anchor the main reinforcement (104); a circle of main reinforcement limiting strips (103) is fixedly installed on the sliding mounting block (101), and a circle of main reinforcement limiting strips (103) are grouped in pairs, and a total of three groups are provided; the three groups of main reinforcement limiting strips (103) are respectively aligned with the three anchoring discharge grooves (1012); the inner sides of the three groups of main reinforcement limiting strips (103) are respectively used to fit the adjacent main reinforcements (104); stirrups (105) are welded on a circle of the main reinforcement (104).

3. The internal support device of the steel cage of the UHV bored pile foundation according to claim 1, characterized in that: The traction-side measuring part (2) comprises: a traction mounting frame (201) and a traction rope (202); the traction mounting frame (201) is fixedly mounted on the sliding mounting block (101) by means of bolts; the traction rope (202) is fixedly mounted on the traction mounting frame (201); the traction rope (202) is provided with scale lines; and the traction rope (202) is used to measure the depth of a pile foundation hole.

4. The internal support device for the steel cage of a UHV bored pile foundation according to claim 1, characterized in that: The anchoring driving unit (3) comprises: an anchoring control hydraulic cylinder (301) and an anchoring sliding column (302); the anchoring control hydraulic cylinder (301) is fixedly mounted inside the sliding mounting block (101) via a bracket; the anchoring sliding column (302) is fixedly mounted on the output shaft of the anchoring control hydraulic cylinder (301); and the anchoring sliding column (302) is located inside the sliding mounting block (101).

5. The internal support device for the steel cage of a UHV bored pile foundation according to claim 4, characterized in that: The anchoring driving part (3) further comprises: an expansion extrusion block (303), the expansion extrusion block (303) being fixedly mounted on the bottom of the anchoring sliding column (302); the outer side of the expansion extrusion block (303) is a slope structure; the expansion extrusion block (303) is used to extrude the three anchoring propulsion members (4) to expand outwards.

6. The internal support device for the steel cage of a UHV bored pile foundation according to claim 5, characterized in that: The anchoring propulsion member (4) comprises: a propulsion block (401), a sliding shaft (4011) and a sloped fitting block (402); the propulsion block (401) is slidably mounted on the anchoring discharge groove (1012); the outer top of the propulsion block (401) is a sloped structure; the propulsion block (401) is used to propel the anchoring pin (102); two sliding shafts (4011) are fixedly mounted on the propulsion block (401); the two sliding shafts (4011) are respectively slidably plugged into the sliding mounting block (101); the inner side of the propulsion block (401) is fixedly mounted with a sloped fitting block (402); the inner side of the sloped fitting block (402) is a sloped structure; the inner side of the sloped fitting block (402) is attached to the expansion extrusion block (303).

7. The internal support device for the steel cage of a UHV bored pile foundation according to claim 6, characterized in that: The anchoring propulsion member (4) further comprises: a support spring (403), and the two sliding shafts (4011) are respectively sleeved with a support spring (403); the support spring (403) is used to press the inclined surface fitting block (402) to fit against the expansion extrusion block (303).

8. The internal support device for the steel cage of a UHV bored pile foundation according to claim 5, characterized in that: The plumb sinker connecting member (5) comprises: a plumb sinker connecting tube (501), a ball sleeve retaining frame (502), an adapting ball head (503) and a plumb sinker ball (504); the plumb sinker connecting tube (501) is fixedly mounted on the bottom of the expansion extrusion block (303); the ball sleeve retaining frame (502) is fixedly mounted inside the plumb sinker connecting tube (501), and a spherical groove is provided in the middle of the ball sleeve retaining frame (502); the adapting ball head (503) is sleeved on the ball sleeve retaining frame (502); the plumb sinker ball (504) is fixedly mounted on the bottom of the adapting ball head (503); and six insertion holes are provided on the outside of the plumb sinker ball (504).

9. The internal support device for the steel cage of a UHV bored pile foundation according to claim 8, characterized in that: The offset measurement unit (6) comprises: an offset measurement shaft (601) and a digital displacement sensor (602); the offset measurement shaft (601) is slidably inserted into a socket opened outside the lead ball (504); the end of the offset measurement shaft (601) is an arc-shaped structure; the end of the offset measurement shaft (601) is attached to the lead connecting tube (501); the digital displacement sensor (602) is fixedly installed inside the offset measurement shaft (601), and the measuring end of the digital displacement sensor (602) is connected to the inside of the socket opened outside the lead ball (504); the digital displacement sensor (602) is externally connected to a digital display screen; and the digital displacement sensor (602) is used to detect the offset of the digital displacement sensor (602).

10. The internal support device for the steel cage of a UHV bored pile foundation according to claim 9, characterized in that: The offset measuring part (6) further comprises: a return spring (603), wherein the return springs (603) are respectively sleeved on the inner side of a socket opened on the outer side of the lead sinker ball (504); and the return spring (603) is connected between the socket opened on the outer side of the lead sinker ball (504) and the offset measuring shaft (601).

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