A quick pile foundation construction device and method for preventing subsidence in a cave area

Abstract

The present invention relates to the technical field of equipment for engineering construction, and specifically to a rapid construction device and method for pile foundations to prevent settlement in a karst cave area, comprising a center plate, an additional plate, a stabilizing plate and an adjustment assembly, wherein the center plate comprises a first fixed plate, a first circular through hole is provided at the center of the first fixed plate, four first plug holes are provided on the center plate, a first fixed anchor is fixedly provided on the downward side of the first fixed plate, the additional plate comprises a second fixed plate, a movable plate and a limiting plate, a fixed protrusion capable of being inserted into the first plug hole is fixedly provided on the second fixed plate, a second plug hole is provided at one end of the second fixed plate away from the fixed protrusion, a second fixed anchor is fixedly provided on the movable plate, and a second circular through hole for the second fixed anchor to pass through is provided on the second fixed plate. When the area of ​​the overall device changes, the present invention ensures that the overall device can be inserted into the ground without expending much effort while maintaining a horizontal state and fitting with the ground.

Description

Technical Field

[0001] The invention relates to the technical field of engineering construction equipment, and in particular to a quick pile foundation construction device and method for preventing subsidence in a karst cave area. Background Art

[0002] A deep foundation consisting of a pile and a pile cap connected to the top of the pile, or a single pile foundation connected by a column and a pile foundation, is referred to as a pile foundation. The pile foundation is the basis for ensuring that all types of buildings can remain stable for a long time. In recent years, with the continuous growth of the population, the number of various buildings has been increasing. A good foundation is a guarantee for the quality of all types of buildings constructed. The existing technology clamps the pile foundation through a fixed component, and increases the contact area with the ground through a fixed component to ensure the stability of the pile foundation installation and avoid the phenomenon of pile foundation settlement caused by external factors. However, the applicability of the existing technology is poor and must be customized in advance according to the actual conditions of different piles. Once a special situation occurs and the pile foundation needs to be urgently prevented from settling, the device is difficult to use and cannot achieve a good anti-settling effect.

[0003] Chinese patent CN216194960U discloses a pile foundation anti-settling device based on engineering construction technology. The fixed base plate is adapted to pile foundations of different specifications by means of a stabilizing plate. The pile foundation can be placed in the center of the fixed base plate by means of the coordination of the fixed base plate and the adjustment assembly. The contact area with the ground can be increased as required by means of an additional plate. However, the scheme increases the contact area with the ground by means of an additional plate during use. Both the fixed base plate and the additional plate have fixed anchors for inserting into the ground. As the number of fixed anchors increases, greater effort is required to insert all the fixed anchors into the ground at a stable moving speed at the same time. If the force applied to the device cannot be evenly distributed to each additional plate, the entire device may not be able to maintain a horizontal state and move downward. Summary of the invention

[0004] In view of the above problems, a rapid construction device for pile foundation against subsidence in a cave area is provided, in which the contact area with the ground is increased by cooperating between a first fixed plate and a second fixed plate, and the first fixed anchor and the second fixed anchor are not inserted into the ground at the same time by cooperating between a movable plate and the second fixed plate, and the relative position between the movable plate and the first fixed plate is fixed by a limiting plate when the second anchor is inserted into the ground.

[0005] In order to solve the problems of the prior art, the technical solution adopted by the present invention is:

[0006] Provided is a rapid construction device for pile foundation against settlement in a karst cave area, comprising a center plate, an additional plate, a stabilizing plate and an adjustment component, wherein the center plate comprises a first fixed plate, a first circular through hole for setting the adjustment component is provided at the center of the first fixed plate, four first plug holes are provided on the center plate, all the plug holes are evenly arranged around the axis of the first circular through hole, a first fixed anchor is fixedly arranged on a downward side of the first fixed plate, the additional plate comprises a second fixed plate, a movable plate and a limiting plate, a fixed protrusion which can be inserted into the first plug hole is fixedly arranged on the second fixed plate, a second plug hole is provided at one end of the second fixed plate away from the fixed protrusion, the internal structure of the second plug hole is the same as the internal structure of the first plug hole, the movable plate is movably arranged on the second fixed plate in a vertical direction, a second fixed anchor is fixedly arranged on the movable plate, a second circular through hole for the second fixed anchor to pass through is provided on the second fixed plate, the limiting plate is slidably arranged on the second fixed plate, and when the interval between the movable plate and the second fixed plate is the smallest, the limiting plate fixes the position of the movable plate at this time.

[0007] Preferably, the additional plate also includes a first spring and a second spring, a raised plate is fixedly provided on the movable plate, a groove for placing the movable plate is formed on the second fixed plate, the first spring is sleeved on the second fixed anchor, the first spring is fixedly provided between the second fixed plate and the movable plate, the sliding direction of the limit plate is perpendicular to the extension direction of the raised plate, the sliding direction of the limit plate is perpendicular to the axis of the second fixed anchor, a first guide rod slidably connected to the limit plate is fixedly provided on the second fixed plate, the second spring is sleeved on the first guide rod, and the second spring is fixedly provided between the limit plate and the movable plate.

[0008] Preferably, there are two limit plates, each of which is provided with an inclined surface that can cooperate with the raised plate, and the inclined surfaces of the two limit plates are arranged facing each other.

[0009] Preferably, the additional plate also includes a limiting bolt, which is fixedly arranged on the second fixed plate. The limiting plate is provided with a limiting groove that cooperates with the sliding of the limiting bolt, and the length direction of the limiting groove is parallel to the sliding direction of the limiting plate.

[0010] Preferably, the center plate also includes a guide bar, which is slidably arranged inside the first socket, and the sliding direction of the guide bar is parallel to the axis of the first fixed anchor. A guide groove cooperating with the guide bar is provided on the limit plate, and the guide bar and the guide groove cooperate to enable the limit plate to perform a reciprocating movement in the first socket.

[0011] Preferably, the center plate further comprises a third spring, one end of the third spring is fixedly connected to the guide bar, the other end of the third spring is fixedly connected to the first fixed plate, and the upward end of the guide bar extends to the outside of the first fixed plate.

[0012] Preferably, the center plate also includes a limit block and a fourth spring. The limit block is slidably arranged in the first socket. The sliding direction of the limit block is parallel to the sliding direction of the limit plate. The limit block is fixedly provided with a second guide rod slidably connected to the first fixed plate. The fourth spring is sleeved on the second guide rod. The fourth spring is fixedly arranged between the first fixed plate and the limit block. The limit block is provided with an inclined surface cooperating with the fixed protrusion. The first fixed plate is provided with a fixed groove cooperating with the limit block.

[0013] Preferably, the center plate also includes a rack and a gear, the rack is fixedly connected to the limit block, the length direction of the rack is parallel to the sliding direction of the limit block, the gear is rotatably arranged inside the first socket, the axis of the gear is parallel to the axis of the first fixed anchor, the gear is meshed with the rack, and a fixing hole that can communicate with the first socket is opened on the first fixed plate.

[0014] Preferably, a limiting protrusion for limiting the moving range of the rack is fixedly provided inside the first plug hole.

[0015] A method for quickly constructing a pile foundation for preventing subsidence in a karst cave area, using the device for quickly constructing a pile foundation for preventing subsidence in a karst cave area, comprises the following steps:

[0016] S1. The pile foundation is coaxially fixed in the first circular through hole through a stabilizing plate and an adjusting assembly, and different numbers of additional plates are selected according to the ground conditions;

[0017] S2, inserting the additional plate into the first insertion hole, at this time controlling the movable plate and the second fixed plate to slide relative to each other, and the interval between the movable plate and the first fixed plate is not at the minimum;

[0018] S3, inserting the first fixing anchor into the ground, so that the lower surface of the first fixing plate contacts the ground, and at this time, only the tip of the second fixing anchor is driven to be inserted into the ground;

[0019] S4. At this time, the movable plates are pressed in sequence so that the second fixing anchors on different movable plates are inserted into the ground in sequence, the interval between the movable plate and the second fixing plate is minimized, and the limiting plate fixes the position of the second fixing plate.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The present invention achieves the function of increasing the contact area with the ground through the cooperation of the first fixed plate and the second fixed plate, achieves the function of preventing the first fixed anchor and the second fixed anchor from being inserted into the ground at the same time through the cooperation of the movable plate and the second fixed plate, and achieves the function of fixing the relative position between the movable plate and the first fixed plate when the second anchor is inserted into the ground through the limiting plate, thereby ensuring that the entire device can be inserted into the ground without expending much effort while maintaining a horizontal state and fitting the ground when the area of ​​the entire device changes. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A three-dimensional diagram of a rapid pile foundation construction device for preventing subsidence in a cave area Figure 1 ;

[0023] Figure 2 A three-dimensional diagram of a rapid pile foundation construction device for preventing subsidence in a cave area Figure 2 ;

[0024] Figure 3 It is a three-dimensional exploded schematic diagram of a pile foundation rapid construction device for preventing settlement in a karst cave area;

[0025] Figure 4 It is a three-dimensional schematic diagram of the center plate in a pile foundation rapid construction device for preventing settlement in a karst cave area;

[0026] Figure 5 It is a three-dimensional exploded schematic diagram of the center plate in a pile foundation rapid construction device for preventing settlement in a karst cave area;

[0027] Figure 6 yes Figure 5 A is a partial enlarged schematic diagram;

[0028] Figure 7 yes Figure 5 A partial enlarged schematic diagram of B in the middle;

[0029] Figure 8 It is a three-dimensional schematic diagram of adding a plate to a rapid pile foundation construction device for preventing settlement in a karst cave area;

[0030] Fig. 9 yes Figure 8 A partial enlarged schematic diagram of C in the middle;

[0031] Fig.10 It is a three-dimensional exploded schematic diagram of an additional plate in a rapid pile foundation construction device for preventing settlement in a karst cave area;

[0032] Fig.11 yes Fig.10 A partial enlarged schematic diagram of D in the middle.

[0033] The numbers in the figure are:

[0034] 1-Center board;

[0035] 11-first fixing plate; 111-first circular through hole; 112-first insertion hole; 113-first fixing anchor; 114-limiting protrusion; 115-fixing hole;

[0036] 12- guide strip;

[0037] 13- third spring;

[0038] 14-limiting block; 141-second guide rod;

[0039] 15- fourth spring;

[0040] 16- rack;

[0041] 17- Gear;

[0042] 2-Additional plates;

[0043] 21-second fixing plate; 211-fixing protrusion; 212-second insertion hole; 213-second circular through hole; 215-first guide rod; 216-fixing groove;

[0044] 22-movable plate; 221-second fixed anchor; 222-raised plate;

[0045] 23-limiting plate; 231-limiting slide groove; 232-guide groove;

[0046] 24-limit bolt;

[0047] 25- first spring;

[0048] 26- second spring;

[0049] 3- Stabilizing plate;

[0050] 4- Adjust the components. DETAILED DESCRIPTION

[0051] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0052] See also Figures 1 to 11As shown, a quick construction device for pile foundation against settlement in a karst cave region comprises a center plate 1, an additional plate 2, a stabilizing plate 3 and an adjusting assembly 4, wherein the center plate 1 comprises a first fixing plate 11, a first circular through hole 111 for setting the adjusting assembly 4 is provided at the center of the first fixing plate 11, four first plug holes 112 are provided on the center plate 1, and all the plug holes are evenly arranged around the axis of the first circular through hole 111, a first fixing anchor 113 is fixedly arranged on the downward side of the first fixing plate 11, the additional plate 2 comprises a second fixing plate 21, a movable plate 22 and a limiting plate 23, and a first fixing anchor 113 which can be inserted into the first plug hole 112 is fixedly arranged on the second fixing plate 21 The second fixing plate 21 has a fixing protrusion 211 in the middle, and a second plug hole 212 is provided at one end of the second fixing plate 21 away from the fixing protrusion 211. The internal structure of the second plug hole 212 is the same as the internal structure of the first plug hole 112. The movable plate 22 is movably arranged on the second fixing plate 21 in the vertical direction. A second fixing anchor 221 is fixedly arranged on the movable plate 22. A second circular through hole 213 for the second fixing anchor 221 to pass through is provided on the second fixing plate 21. The limiting plate 23 is slidably arranged on the second fixing plate 21. When the interval between the movable plate 22 and the second fixing plate 21 is the smallest, the limiting plate 23 fixes the position of the movable plate 22 at this time.

[0053] The pile foundation is coaxially fixed in the first circular through hole 111 by the stabilizing plate 3 and the adjusting assembly 4, and then different numbers of additional plates 2 are rotated according to the ground conditions, and the number of additional plates 2 is a multiple of four, and then the additional plates 2 are inserted into the first insertion hole 112 in sequence through the fixing protrusion 211, and the redundant additional plates 2 are inserted into the second insertion hole 212 in sequence, and so on. At this time, the upper surface of the first fixing plate 11 is parallel to the lower surface of the second fixing plate 21, and the upper surface of the first fixing plate 11 is parallel to the upper surface of the second fixing plate 21. Then, the movable plate 22 in the second fixing plate 21 is controlled to move, and the movable plate 22 and the second fixing plate 21 slide relative to each other, and the movable plate 22 moves up in the vertical direction until it protrudes from the upper surface of the second fixing plate 21, and then the tip of the first fixing anchor 113 is aligned with the ground, and a vertical downward force is applied to the first fixing plate 11, and the first fixing anchor 113 is inserted into the ground, and the lower surface of the first fixing plate 11 contacts the ground. At this time, the lower surface of the second fixed plate 21 is also in contact with the ground, and the tip of the second fixed anchor 221 is inserted into the ground, and then a vertical downward force is applied to all the movable plates 22 in turn, the second fixed anchor 221 is inserted into the ground, and the movable plate 22 and the second fixed plate 21 slide relative to each other, and the movable plate 22 moves down to the lowest point in the vertical direction. At this time, the limiting plate 23 works to fix the position of the movable plate 22. Compared with the prior art, the first fixed plate 11 and the second fixed plate 21 of the present invention cooperate to increase the contact area with the ground, and the first fixed anchor 113 and the second fixed anchor 221 are not inserted into the ground at the same time through the cooperation of the movable plate 22 and the second fixed plate 21. The relative position between the movable plate 22 and the first fixed plate 11 when the second anchor is inserted into the ground is fixed by the limiting plate 23, so that when the area of ​​the overall device changes, it is ensured that the overall device can be inserted into the ground without spending much effort while maintaining a horizontal state and fitting the ground.

[0054] See also Figure 3 , Figure 8 , Fig. 9 , Fig.10 and Fig.11 As shown: the additional plate 2 also includes a first spring 25 and a second spring 26, a raised plate 222 is fixedly provided on the movable plate 22, a groove for placing the movable plate 22 is provided on the second fixed plate 21, the first spring 25 is sleeved on the second fixed anchor 221, the first spring 25 is fixedly provided between the second fixed plate 21 and the movable plate 22, the sliding direction of the limit plate 23 is perpendicular to the extension direction of the raised plate 222, the sliding direction of the limit plate 23 is perpendicular to the axis of the second fixed anchor 221, a first guide rod 215 slidably connected to the limit plate 23 is fixedly provided on the second fixed plate 21, the second spring 26 is sleeved on the first guide rod 215, and the second spring 26 is fixedly provided between the limit plate 23 and the movable plate 22.

[0055] When the additional plate 2 is not inserted into the first insertion hole 112, the movable plate 22 and the second fixed plate 21 are fitted with each other, the movable plate 22 is stored in the groove, the limit plate 23 is above the raised plate 222 to fix the movable plate 22, the first spring 25 is in a compressed state, and then the fixed protrusion 211 is inserted into the first insertion hole 112, at this time the second fixed plate 21 is fitted with the first fixed plate 11, the control limit plate 23 slides to a position not above the raised plate 222, the second spring 26 is compressed, and the first spring 25 in the compressed state is released from the compressed state to push the movable plate 22 along the vertical direction The second spring 26 is released from the compressed state and pushes the limiting plate 23 to move below the raised plate 222. The tip of the first fixing anchor 113 is then aligned with the ground, and a vertical downward force is applied to the first fixing plate 11 so that the first fixing anchor 113 is inserted into the ground. Compared with the prior art, the first spring 25 of the present invention allows the movable plate 22 to automatically move up in the vertical direction after the constraint of the limiting plate 23 is released, thereby facilitating the user to prepare for use.

[0056] See also Figures 8 to 11 As shown, there are two limit plates 23 , and the limit plates 23 are provided with inclined surfaces that can cooperate with the raised plate 222 , and the inclined surfaces of the two limit plates 23 are arranged facing each other.

[0057] When the first fixing anchor 113 is fully inserted into the ground, the limit plate 23 is under the raised plate 222, and a vertical downward force is applied to the movable plate 22. The second fixing anchor 221 will be fully inserted into the ground while the movable plate 22 moves downward in the vertical direction. When the raised plate 222 moves downward in the vertical direction and contacts the limit plate 23, the raised plate 222 first contacts the inclined surface on the limit plate 23, and then the two limit plates 23 will move away from each other and leave from directly under the raised plate 222. The second spring 26 is compressed. When the second fixing anchor 221 is fully inserted into the ground When the movable plate 22 is moved down to release the limit plate 23, the vertical height of the raised plate 222 is lower than the vertical height of the limit plate 23. At this time, the second spring 26 is released from the compressed state to provide a thrust to push the limit plate 23 to move to the top of the raised plate 22, thereby fixing the position of the movable plate 22. Compared with the prior art, the inclined surface on the limit plate 23 of the present invention cooperates with the second spring 26 so that the two limit plates 23 move away from each other when the movable plate 22 moves down to release the limit plate 23, thereby ensuring that the limit plate 23 will not hinder the second fixing anchor 221 from being fully inserted into the ground, and can also automatically fix the lowest position of the movable plate 22.

[0058] See also Figure 3 , Figure 8 , Fig. 9 , Fig.10 and Fig.11 As shown: the additional plate 2 also includes a limiting bolt 24, which is fixedly arranged on the second fixed plate 21, and a limiting groove 231 is opened on the limiting plate 23 to cooperate with the limiting bolt 24 to slide, and the length direction of the limiting groove 231 is parallel to the sliding direction of the limiting plate 23.

[0059] After the compression state is released, the second spring 26 provides elastic force to push the limit plate 23 to move. After the limit plate 23 moves a certain distance, the limit bolt 24 will contact the end of the limit slot 231. At this time, the limit plate 23 stops moving. Compared with the prior art, the limit bolt 24 and the limit slot 231 of the present invention cooperate to limit the moving range of the limit plate 23 under the elastic force of the second spring 26, thereby ensuring that the inclined surface of the limit plate 23 can be on the moving path of the raised plate 222 when there is no external force.

[0060] See also Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Fig. 9 and Fig.11 As shown: the center plate 1 also includes a guide bar 12, which is slidably arranged inside the first socket 112, and the sliding direction of the guide bar 12 is parallel to the axis of the first fixed anchor 113. A guide groove 232 cooperating with the guide bar 12 is provided on the limit plate 23. The guide bar 12 and the guide groove 232 cooperate to enable the limit plate 23 to perform a reciprocating movement in the first socket 112.

[0061] The fixing protrusion 211 is inserted into the first insertion hole 112. During the process of inserting the fixing protrusion 211 into the first insertion hole 112, the guide bar 12 first contacts with the guide groove 232. The guide groove 232 is an acute angle as a whole. The guide bar 12 first cooperates with the first section of the guide groove 232. At this time, the two limit plates 23 will move away from each other, the second spring 26 is compressed, and the movable plate 22 moves up in the vertical direction under the action of the first spring 25. When the guide bar 12 cooperates with the second section of the guide groove 232, the two limit plates 23 will move closer to each other under the action of the second spring 26, so that the two limit plates 23 are directly below the protruding plate 222. Compared with the prior art, the guide bar 12 and the guide groove 232 of the present invention cooperate so that the limit plate 23 can spontaneously perform a reciprocating motion, so that the movable plate 22 can automatically move up in the vertical direction when the additional plate 2 is inserted into the center plate 1.

[0062] See also Figures 3 to 7As shown: the center plate 1 also includes a third spring 13, one end of the third spring 13 is fixedly connected to the guide bar 12, the other end of the third spring 13 is fixedly connected to the first fixed plate 11, and the upward end of the guide bar 12 extends to the outside of the first fixed plate 11.

[0063] When it is found in actual use that too many additional plates 2 are installed, the guide bar 12 is controlled to move up in the vertical direction. When the guide bar 12 moves up in the vertical direction, the third spring 13 will be compressed. When the guide bar 12 moves to the maximum distance in the vertical direction, the guide bar 12 disengages from the guide groove 232. At this time, the excess additional plates 2 are controlled to disengage from the center plate 1, and then the guide bar 12 is released. The third spring 13 is released from the compressed state and provides elastic force to push the guide bar 12 to move downward in the vertical direction. Compared with the prior art, the third spring 13 of the present invention limits the default position of the guide bar 12, so that the guide bar 12 can still work normally after the currently installed additional plate 2 is removed and a new additional plate 2 is installed.

[0064] See also Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Fig.10 and Fig.11 As shown: the center plate 1 also includes a limit block 14 and a fourth spring 15. The limit block 14 is slidably arranged in the first socket 112. The sliding direction of the limit block 14 is parallel to the sliding direction of the limit plate 23. A second guide rod 141 slidably connected to the first fixed plate 11 is fixedly arranged on the limit block 14. The fourth spring 15 is sleeved on the second guide rod 141. The fourth spring 15 is fixedly arranged between the first fixed plate 11 and the limit block 14. The limit block 14 is provided with an inclined surface cooperating with the fixing protrusion 211. The first fixed plate 11 is provided with a fixing groove 216 cooperating with the limit block 14.

[0065] Insert the fixing protrusion 211 into the first insertion hole 112, and the fixing protrusion 211 first contacts with the inclined surface of the limit block 14. As the fixing protrusion 211 continuously enters the first insertion hole 112, the two limit blocks 14 move away from each other, and the fourth spring 15 is compressed. When the fixing protrusion 211 is fully inserted into the first insertion hole 112, the fourth spring 15 releases the compression state and pushes the limit block 14 to move. The limit block 14 is inserted into the fixing groove 216 under the action of the fourth spring 15. Compared with the prior art, the limit block 14 and the fourth spring 15 of the present invention make the position of the additional plate 2 automatically fixed when the fixing protrusion 211 is fully inserted into the first insertion hole 112, thereby ensuring that the additional plate 2 and the center plate 1 will not be separated at will.

[0066] See also Figures 3 to 7As shown: the center plate 1 also includes a rack 16 and a gear 17. The rack 16 is fixedly connected to the limit block 14. The length direction of the rack 16 is parallel to the sliding direction of the limit block 14. The gear 17 is rotatably arranged inside the first socket 112. The axis of the gear 17 is parallel to the axis of the first fixed anchor 113. The gear 17 is meshed with the rack 16. A fixing hole 115 that can communicate with the first socket 112 is opened on the first fixed plate 11.

[0067] The movement of the limit block 14 is controlled through the fixed hole 115. When one limit block 14 in the first socket 112 moves, it drives the rack 16 fixedly connected thereto to move. When the rack 16 moves, it drives the gear 17 to rotate. The rotation of the gear 17 drives another rack 16 in the same first socket 112 to move, so that the other limit block 14 moves synchronously. Compared with the prior art, the rack 16 and the gear 17 of the present invention enable the two limit blocks 14 in the same first socket 112 to move closer to or away from each other at the same time, so that it is convenient for users to contact the fixed connection between the additional plate 2 and the center plate 1.

[0068] See also Figures 3 to 7 As shown, a limiting protrusion 114 for limiting the moving range of the rack 16 is fixedly arranged inside the first plug hole 112.

[0069] The fourth spring 15 that is released from the compressed state provides elastic force to push the limit block 14 to move. When the limit block 14 moves, it will drive the rack 16 fixedly connected to it to move. After the rack 16 moves a certain distance, it will contact the limit protrusion 114, and then the limit block 14 stops moving. Compared with the prior art, the limit protrusion 114 of the present invention limits the movement range of the limit block 14 under the elastic force of the fourth spring 15, thereby ensuring that the inclined surface on the limit block 14 can stably cooperate with the fixed protrusion 211.

[0070] See also Figures 1 to 11 As shown: a method for quickly constructing a pile foundation for preventing subsidence in a karst cave area, using the device for quickly constructing a pile foundation for preventing subsidence in a karst cave area, comprising the following steps:

[0071] S1, the pile foundation is coaxially fixed in the first circular through hole 111 through the stabilizing plate 3 and the adjusting assembly 4, and different numbers of additional plates 2 are selected according to the ground conditions;

[0072] S2, inserting the additional plate 2 into the first insertion hole 112, at this time controlling the movable plate 22 and the second fixed plate 21 to slide relative to each other, and the interval between the movable plate 22 and the first fixed plate 11 is not at the minimum;

[0073] S3, inserting the first fixing anchor 113 into the ground, so that the lower surface of the first fixing plate 11 contacts the ground, and at this time, only the tip of the second fixing anchor 221 is inserted into the ground;

[0074] S4. At this time, the movable plates 22 are pressed in sequence so that the second fixing anchors 221 on different movable plates 22 are inserted into the ground in sequence, the interval between the movable plates 22 and the second fixing plates 21 is minimized, and the limiting plates 23 fix the position of the second fixing plates 21.

[0075] Compared with the prior art, the first fixed plate 11 and the second fixed plate 21 of the present invention cooperate to increase the contact area with the ground, and the first fixed anchor 113 and the second fixed anchor 221 are not inserted into the ground at the same time through the cooperation of the movable plate 22 and the second fixed plate 21. The relative position between the movable plate 22 and the first fixed plate 11 is fixed by the limiting plate 23 when the second anchor is inserted into the ground, so as to ensure that the entire device can be inserted into the ground without expending much effort while maintaining a horizontal state and fitting the ground when the area of ​​the entire device changes.

[0076] The above embodiments only express one or several implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the attached claims.

Claims

1. A rapid pile foundation construction device for preventing subsidence in a karst cave area, comprising a central plate (1), an additional plate (2), a stabilizing plate (3) and an adjustment component (4), characterized in that: The center plate (1) comprises a first fixing plate (11), a first circular through hole (111) for setting the adjustment component (4) is provided at the center of the first fixing plate (11), four first plug holes (112) are provided on the center plate (1), all the plug holes are evenly arranged around the axis of the first circular through hole (111), and a first fixing anchor nail (113) is fixedly arranged on a downward side of the first fixing plate (11); The additional plate (2) comprises a second fixed plate (21), a movable plate (22) and a limiting plate (23); a fixing protrusion (211) capable of being inserted into the first plug hole (112) is fixedly arranged on the second fixed plate (21); a second plug hole (212) is provided at one end of the second fixed plate (21) away from the fixing protrusion (211); the internal structure of the second plug hole (212) is the same as the internal structure of the first plug hole (112); the movable plate (22) is movably arranged on the second fixed plate (21) in a vertical direction; a second fixing anchor (221) is fixedly arranged on the movable plate (22); a second circular through hole (213) for the second fixing anchor (221) to pass through is provided on the second fixed plate (21); the limiting plate (23) is slidably arranged on the second fixed plate (21); when the interval between the movable plate (22) and the second fixed plate (21) is the smallest, the limiting plate (23) fixes the position of the movable plate (22) at this time; The additional plate (2) further comprises a first spring (25) and a second spring (26); a protruding plate (222) is fixedly arranged on the movable plate (22); a groove for placing the movable plate (22) is provided on the second fixed plate (21); the first spring (25) is sleeved on the second fixed anchor (221); the first spring (25) is fixedly arranged between the second fixed plate (21) and the movable plate (22); the sliding direction of the limit plate (23) is perpendicular to the extension direction of the protruding plate (222); the sliding direction of the limit plate (23) is perpendicular to the axis of the second fixed anchor (221); a first guide rod (215) slidably connected to the limit plate (23) is fixedly arranged on the second fixed plate (21); the second spring (26) is sleeved on the first guide rod (215); the second spring (26) is fixedly arranged between the limit plate (23) and the movable plate (22); There are two limit plates (23), and the limit plates (23) are provided with an inclined surface capable of cooperating with the raised plate (222), and the inclined surfaces of the two limit plates (23) are arranged facing each other; The additional plate (2) further comprises a limiting bolt (24); the limiting bolt (24) is fixedly arranged on the second fixed plate (21); a limiting slide groove (231) cooperating with the limiting bolt (24) for sliding is provided on the limiting plate (23); and the length direction of the limiting slide groove (231) is parallel to the sliding direction of the limiting plate (23); The center plate (1) further comprises a guide bar (12); the guide bar (12) is slidably arranged inside the first insertion hole (112); the sliding direction of the guide bar (12) is parallel to the axis of the first fixed anchor (113); a guide groove (232) cooperating with the guide bar (12) is provided on the limit plate (23); the guide bar (12) and the guide groove (232) cooperate to enable the limit plate (23) to perform a reciprocating movement in the first insertion hole (112); The center plate (1) further comprises a third spring (13); one end of the third spring (13) is fixedly connected to the guide bar (12), the other end of the third spring (13) is fixedly connected to the first fixed plate (11), and the upward end of the guide bar (12) extends to the outside of the first fixed plate (11); The center plate (1) further comprises a limit block (14) and a fourth spring (15); the limit block (14) is slidably disposed in the first insertion hole (112); the sliding direction of the limit block (14) is parallel to the sliding direction of the limit plate (23); a second guide rod (141) slidably connected to the first fixed plate (11) is fixedly disposed on the limit block (14); the fourth spring (15) is sleeved on the second guide rod (141); the fourth spring (15) is fixedly disposed between the first fixed plate (11) and the limit block (14); an inclined surface cooperating with the fixing protrusion (211) is disposed on the limit block (14); and a fixing groove (216) cooperating with the limit block (14) is provided on the first fixed plate (11); The center plate (1) further comprises a rack (16) and a gear (17); the rack (16) is fixedly connected to the limit block (14); the length direction of the rack (16) is parallel to the sliding direction of the limit block (14); the gear (17) is rotatably arranged inside the first insertion hole (112); the axis of the gear (17) is parallel to the axis of the first fixing anchor (113); the gear (17) is meshed with the rack (16); and a fixing hole (115) capable of communicating with the first insertion hole (112) is provided on the first fixing plate (11).

2. A rapid pile foundation construction device for preventing subsidence in a karst cave area according to claim 1, characterized in that: A limiting protrusion (114) for limiting the movement range of the rack (16) is fixedly arranged inside the first insertion hole (112).

3. A method for quickly constructing pile foundations to prevent subsidence in a karst cave region, using a device for quickly constructing pile foundations to prevent subsidence in a karst cave region as claimed in claim 1 or 2, characterized in that: The following steps are included: S1, the pile foundation is coaxially fixed in the first circular through hole (111) through the stabilizing plate (3) and the adjusting assembly (4), and different numbers of additional plates (2) are selected according to ground conditions; S2, inserting the additional plate (2) into the first insertion hole (112), at which time the movable plate (22) and the second fixed plate (21) are controlled to slide relative to each other, and the interval between the movable plate (22) and the first fixed plate (11) is not at the minimum; S3, inserting the first fixing anchor (113) into the ground, so that the lower surface of the first fixing plate (11) contacts the ground, and at this time, the second fixing anchor (221) drives only the tip to be inserted into the ground; S4. At this time, the movable plates (22) are pressed in sequence so that the second fixing anchors (221) on different movable plates (22) are inserted into the ground in sequence, the interval between the movable plates (22) and the second fixing plates (21) is minimized, and the limiting plates (23) fix the position of the second fixing plates (21).

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