An assembled flexible support under complex geological conditions and a construction method thereof

Abstract

The present application belongs to the technical field of complex geological pile foundation support. The purpose is to provide an assembled flexible support under complex geological conditions and a construction method, which can ensure that the position of the pile foundation after being fixed meets the established position under complex geological conditions. The technical scheme comprises a bracket mechanism, a bottom support mechanism, a flexible support mechanism and a through supporting rod. Two bracket mechanisms are arranged on the hard geological area on both sides of the complex geological area. A plurality of bottom support mechanisms arranged on the complex geological area are located between the two bracket mechanisms and arranged in a row. Each bottom support mechanism is provided with a flexible support mechanism above. The bottom support mechanism corresponds to a plurality of pile foundation holes opened on the complex geological area. An installation base is arranged in the pile foundation hole. The two ends of the through supporting rod are connected to the two bracket mechanisms, and the plurality of flexible support mechanisms are connected to the middle part of the through supporting rod. The present application is used for fixing the installation base in the complex geological area.

Description

Technical Field

[0001] This invention relates to a prefabricated flexible support and construction method under complex geological conditions, belonging to the field of complex geological pile foundation support technology. Background Technology

[0002] When installing a photovoltaic power generation system on complex geological conditions (soft soil, uneven bearing capacity, slope), it is necessary to open the pile foundation holes and fix the pile foundation. That is, the pile foundation is fixed in the pile foundation hole with concrete. After the pile foundation is formed, the photovoltaic power generation system can be installed.

[0003] The existing pile foundations use relatively simple supports during fixing, with a small contact area with the ground. This makes the supports prone to rapid settlement on soft soil or uneven bearing surfaces, causing the pile foundation to deviate from its intended installation position after it is fully fixed, thus affecting subsequent installation.

[0004] In addition, when pile foundations are poured on complex geological conditions, problems such as large verticality deviations, easy collapse of the pile foundation, and uneven settlement may occur when there is a large difference in elevation. Summary of the Invention

[0005] To address the shortcomings of existing technologies, the present invention aims to provide a prefabricated flexible support and construction method under complex geological conditions, which can ensure that the pile foundation (installation base) is not displaced by complex geological conditions while waiting for concrete to form, and ensure that the position of the pile foundation (installation base) conforms to the predetermined position after fixing.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a prefabricated flexible support under complex geological conditions, comprising a bracket mechanism, a bottom support mechanism, a flexible support mechanism, and a through-support rod. Two bracket mechanisms are respectively set on the hard geological areas on both sides of the complex geological area. At least one bottom support mechanism set on the complex geological area is located between the two bracket mechanisms and arranged in a row. A flexible support mechanism is set above each bottom support mechanism. The bottom support mechanism corresponds one-to-one with the pile foundation holes opened in the complex geological area. An installation base is set in the pile foundation hole, and the upper part of the installation base extends out from the corresponding bottom support mechanism and flexible support mechanism. The flexible support mechanism includes a circular ring support, a stabilizing platform, and fan-shaped plates. Three stabilizing platforms are evenly distributed on the upper surface of the circular ring support. An arc-shaped elongated hole is opened on the circular ring support between every two stabilizing platforms. A support is provided on the inner side of each stabilizing platform. The three fan-shaped plates are spaced apart from the three stabilizing platforms. One end of the arc side of the fan-shaped plate is hinged to the corresponding support through a first pin, and the other end is hinged to one end of the rocker arm through a second pin. The central angle side of the fan-shaped plate faces the center of the circular ring support. A third pin is installed on the other end of the rocker arm. A guide ring is fitted on the third pin. The guide ring is fixed to one end of the guide rod. A spring is fitted on the outside of the guide rod. The guide ring is slidably disposed in the corresponding arc-shaped elongated hole. The guide rod is arc-shaped and disposed along the arc-shaped elongated hole. The end of the guide rod away from the guide ring is inserted into the arc-shaped guide hole on the inner wall of the arc-shaped elongated hole. One end of the spring presses on the guide ring, and the other end presses on the inner wall of the arc-shaped elongated hole. The upper part of the mounting base extends from the middle of the three fan-shaped pieces; The two ends of the through-support rod are respectively connected to the two corresponding bracket mechanisms, and the flexible support mechanism is connected to the middle of the through-support rod.

[0007] Preferably, the third pin has an axial locking hole, and the seventh bolt passes vertically through the locking hole through the third pin. The upper end of the seventh bolt is equipped with a tightening head, and the lower end is threadedly connected to a fifth nut. A tightening ring that can abut against the lower surface of the ring bracket is fixed on the fifth nut, and a tightening block that can abut against the upper surface of the ring bracket is fixed on the tightening head.

[0008] Preferably, the fan-shaped piece has tightening teeth distributed on the central corner side, and a rubber layer is attached to the surface of the tightening teeth.

[0009] The through-support rod includes multiple high-strength screw rods connected in sequence. The two ends of the high-strength screw rods are respectively provided with extension screw holes and extension bolts. The extension screw hole of the subsequent high-strength screw rod is connected to the extension bolt of the preceding high-strength screw rod. The flexible support mechanism also includes a balance frame. Two strip-shaped balance frames are arranged in parallel and fixed on both sides of the circular support. Horizontal balance holes are opened at both ends of the balance frame. The circular support is also provided with two balance ears with horizontal holes, and the two balance ears correspond to the balance holes at both ends of the balance frame. The two through-support rods pass through the balance holes and balance ears on the flexible support mechanism in the middle, and are connected to the bracket mechanism at both ends.

[0010] The bracket mechanism includes a fixed bracket, a support platform, adjusting bolts, and a top bracket. The support platform is horizontally set on the fixed bracket, and adjusting bolts are vertically fixed at the four corners of the support platform. Two strip-shaped top brackets are fitted onto the corresponding two adjusting bolts, and adjusting nuts are installed on the adjusting bolts at the positions corresponding to the upper and lower sides of the top brackets. Both ends of the top bracket are provided with bracket holes, and the two ends of the two through support rods pass through the corresponding bracket holes.

[0011] Preferably, the support platform is further provided with four mounting blocks, and a data scale is vertically provided on the top surface of the mounting blocks. The data scale is marked with a height value. The support platform is also provided with a leveling device, which is used to help the support platform keep horizontal in the length direction of the support rod. Two inspection holes are opened on each of the two top brackets, and each inspection hole is equipped with an indicator arrow. The data scale passes through the corresponding inspection hole.

[0012] Preferably, locking nuts are provided at both the through-hole and the bracket hole on the through-support rod.

[0013] Preferably, the base support mechanism includes a base frame, a baffle, an upper support, and a support frame. The upper support is arranged parallel above the base frame. The base frame is a square frame, and the upper support is a square frame smaller than the base frame. The base frame and the upper support are supported and fixed by four sets of diagonal braces. Each of the four corners of the base frame is provided with a baffle plate. The baffle plate has a right angle, and its right angle end is in contact with the inner corner of the base frame. The bottom surface of the baffle plate is flush with the bottom surface of the base frame. A mounting bracket is fixed on each of the two right angle sides of the baffle plate. A second bolt is fixed on the base frame at the corresponding position of the mounting bracket. The mounting bracket has a hole and is fitted onto the corresponding second bolt and tightened by a first nut. Two fourth bolts are fixed on each side of the support frame. The fourth bolts pass through the first through hole on the upper bracket and are then tightened by the third nut. The support frame is a hollow square column. Holes are opened on the opposite side walls of the support frame and fourth nuts are fixed thereon. The sixth bolt is threaded into the fourth nut and passes through the side wall of the support frame. A top seat is fixed to the end of the sixth bolt located inside the support frame. The upper part of the mounting base extends out from the support frame.

[0014] Preferably, the bottom support mechanism is divided into two parts at the center line, and the two halves of the bottom frame and the upper support are connected as one unit by a first bolt and a nut. A fourth through hole is provided on the joint surface of the two halves of the support frame, and a third bolt passes through the fourth through hole and is connected as one unit by a nut. The upper bracket has a second through hole perpendicular to the fourth bolt at each of the two half support frames, and a second nut is fixed at the second through hole. The two half support frames have a third through hole corresponding to the second through hole. The fifth bolt passes through the second through hole and the third through hole and is threadedly connected to the second nut.

[0015] The present invention also provides a construction method for prefabricated flexible supports under the above-mentioned complex geological conditions, comprising the following steps: S1. In complex geological areas, multiple rows of pile foundation holes are opened, and an installation base is placed in each pile foundation hole; S2. Place a corresponding number of bracket mechanisms on the hard geological areas on both sides of the complex geological area, corresponding to the number of rows of pile foundation holes, and measure and calibrate the height position of the bracket mechanisms to determine the height position of the top bracket on the adjusting bolt. S3. Prepare a bottom support mechanism and a flexible support mechanism with the same number of pile foundation holes. Assemble the bottom support mechanism at the corresponding pile foundation holes and make the upper part of the mounting base pass through the support frame. Tighten the sixth bolt and tighten the top seat against the mounting base to temporarily fix the mounting base. S4. Place the flexible support mechanism on the support frame in the corresponding bottom support mechanism; S5. Connect multiple high-strength screws in sequence to extend their length. During the connection process, insert the high-strength screws into the corresponding balance holes and balance ears in the flexible support mechanism, and tighten the lock nuts at the corresponding positions until the high-strength screws penetrate all the flexible support mechanisms in their row. S6. Insert two high-strength screws in the same row into the bracket holes at both ends of the top bracket in the corresponding bracket mechanism and tighten the lock nuts. Then connect them with the high-strength screws that have been connected to form two through support rods. The two through support rods support all the flexible support mechanisms. Fine-tune the lock nuts so that the flexible support mechanism is located directly above the corresponding bottom support mechanism. S7. Pour concrete into the pile foundation hole; S8. After the concrete pouring is completed, in order to prevent the installation base from shifting due to the influence of complex geological conditions while waiting for the concrete to form, it is changed to be supported by a flexible support mechanism. That is, loosen the top tightening ring, and the spring pushes the fan-shaped pieces through the guide ring, the third pin, and the rocker arm, so that the central corner side of the three fan-shaped pieces is pressed against the installation base. Lock the top tightening ring to complete the support of the installation base by the flexible support mechanism. Loosen the sixth bolt to release the fixation of the bottom support mechanism to the installation base. Even if the bottom support mechanism settles or shifts due to the influence of complex geological conditions while waiting for the concrete to form, it will not affect the position of the installation base. S9. After the concrete has fully solidified, remove all flexible support mechanisms, through-support rods, bottom support mechanisms, and bracket mechanisms to complete the pouring and fixing of the installation base under complex geological conditions.

[0016] Compared with the prior art, the present invention has the following beneficial effects.

[0017] 1. In this invention, the flexible support mechanism is supported by the bracket mechanism and the through support rod, and is not affected by complex geological conditions. In addition, during the process of waiting for the concrete to form, the installation base is supported by the flexible support mechanism, so that the installation base is also not affected by complex geological conditions, ensuring that the position of the installation base after the pouring and fixing is consistent with the predetermined position.

[0018] 2. In this invention, the flexible support mechanism uses the arc-shaped elongated hole on the circular ring support to assist the rocker arm in adjusting the angle of the fan-shaped pieces, so that the three fan-shaped pieces can provide multi-angle, multi-directional, and multi-form support, which has a large tolerance for the shape of the mounting base and a wide range of applications.

[0019] 3. The morphological changes in complex geological areas are slow and gradual. In this invention, the installation base is quickly positioned and supported by the bottom support mechanism in the early stage. The baffle on the bottom support mechanism increases the contact area between the bottom support mechanism and the ground and reduces the deformation range of the bottom support mechanism, thus providing effective support for the installation base in the early stage.

[0020] 4. In this invention, the adjusting bolts and adjusting nuts in the bracket mechanism can be used to adjust the height of the top bracket. When there is a height difference in the terrain, the height difference can be reduced by adjusting the height of the top bracket in the bracket mechanisms on both sides, thus ensuring the verticality of the mounting base. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the embodiments will be briefly introduced below.

[0022] Figure 1 This is a schematic diagram of the overall installation of the invention in different geological regions.

[0023] Figure 2 This is a schematic diagram of the overall structure of the present invention.

[0024] Figure 3 This is a schematic diagram showing the positional relationship between the bottom support mechanism, the flexible support mechanism, and the through support rod in this invention.

[0025] Figure 4 This is a schematic diagram of the flexible support mechanism in this invention. Figure 1 .

[0026] Figure 5 This is a schematic diagram of the flexible support mechanism in this invention. Figure 2 .

[0027] Figure 6 This is a schematic diagram of the installation of the sector plate in this invention. Figure 1 .

[0028] Figure 7 This is a schematic diagram of the installation of the sector plate in this invention. Figure 2 .

[0029] Figure 8 This is a schematic diagram of the installation of the guide ring, guide rod, and spring in this invention.

[0030] Figure 9This is a schematic diagram of the installation of the through-support rod and bracket mechanism in this invention.

[0031] Figure 10 This is a schematic diagram of the bracket mechanism in this invention.

[0032] Figure 11 This is a schematic diagram of the bottom support mechanism in this invention.

[0033] The attached figures are labeled as follows: 1. Installation base; 2. Pile foundation hole; 3. Base support mechanism; 301. Base frame; 3011. First bolt; 302. Diagonal brace; 303. Second bolt; 304. Baffle; 3041. Mounting bracket; 3042. First nut; 305. Upper bracket; 3051. First through hole; 3052. Second through hole; 3053. Second nut; 306. Support frame; 3061. Third through hole; 3062. Fourth through hole; 3063. Third bolt; 3064. Fourth bolt; 3065. Third nut; 307. Fifth bolt; 308. Sixth bolt; 3081. Top seat; 309. Fourth nut; 4. Flexible support mechanism; 401. Circular ring support; 4011. Arc-shaped elongated hole; 4012. Balance ear; 402. Balance frame; 4021. Balance through hole; 403. Stabilizing platform; 404. Support; 405. First pin; 406. Sector-shaped piece; 4061. Tightening tooth; 407. Second pin; 408. Rocker arm; 409. Third pin; 410. Locking through hole; 411. Guide ring; 412. Guide rod; 413. Spring; 414. Seventh bolt; 415. Tightening head; 416. Tightening block; 417. Fifth nut; 418. Tightening ring; 5. Through-support rod; 501. High-strength screw rod; 502. Extended screw hole; 503. Extended bolt; 504. Locking nut; 6. Bracket mechanism; 601. Fixed bracket; 602. Support platform; 603. Adjusting bolt; 604. Mounting block; 605. Data scale; 606. Leveling device; 607. Top bracket; 608. Bracket hole; 609. Inspection hole; 610. Indicating arrow; 611. Adjusting nut. Detailed Implementation

[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] The present invention provides the following embodiments.

[0036] like Figure 2 , Figure 3 As shown, the present invention provides a prefabricated flexible support under complex geological conditions, comprising a bracket mechanism 6, a bottom support mechanism 3, a flexible support mechanism 4, and a through-support rod 5. Two bracket mechanisms 6 are respectively set on the hard geological areas on both sides of the complex geological area. Multiple bottom support mechanisms 3 set on the complex geological area are located between the two bracket mechanisms 6 and arranged in a row. A flexible support mechanism 4 is set above each bottom support mechanism 3. The bottom support mechanism 3 corresponds one-to-one with multiple pile foundation holes 2 opened in the complex geological area. An installation base 1 is set in the pile foundation hole 2. The upper part of the installation base 1 extends out from the corresponding bottom support mechanism 3 and flexible support mechanism 4. like Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 As shown, the flexible support mechanism 4 includes a circular ring support 401, a stabilizing platform 403, and fan-shaped pieces 406. Three stabilizing platforms 403 are evenly distributed on the upper surface of the circular ring support 401. An arc-shaped long hole 4011 is opened on the circular ring support 401 between every two stabilizing platforms 403. A support 404 is provided on the inner side of each stabilizing platform 403. The three fan-shaped pieces 406 are spaced apart from the three stabilizing platforms 403. One end of the arc side of the fan-shaped piece 406 is hinged to the corresponding support 404 through a first pin 405, and the other end is hinged to one end of a rocker arm 408 through a second pin 407. The central angle side of the fan-shaped piece 406 faces the center of the circular ring support 401. A third pin 409 is installed on the other end of the rocker arm 408. A guide ring 411 is fitted on the third pin 409. The guide ring 411 is fixed to one end of a guide rod 412. A spring 413 is fitted on the outside of the guide rod 412. The guide ring 411 is slidably disposed in the corresponding arc-shaped elongated hole 4011. The guide rod 412 is arc-shaped and disposed along the arc-shaped elongated hole 4011. One end of the guide rod 412 away from the guide ring 411 is inserted into the arc-shaped guide hole on the inner wall of the arc-shaped elongated hole 4011. One end of the spring 413 presses on the guide ring 411, and the other end presses on the inner wall of the arc-shaped elongated hole 4011. The upper part of the mounting base 1 extends from the middle of the three fan-shaped pieces 406; The two ends of the through support rod 5 are respectively connected to the two corresponding bracket mechanisms 6, and the multiple flexible support mechanisms 4 are all connected to the middle of the through support rod 5.

[0037] The three sector-shaped pieces 406 in the flexible support mechanism 4 are each hinged to the corresponding support 404 and can rotate around the hinge point to adjust the angle. The spring 413 applies elastic force to the sector-shaped pieces through the rocker arm 408, so that the sector-shaped pieces 406 can press against the mounting base 1 to support the mounting base 1.

[0038] The third pin 409 has an axial locking hole 410. The seventh bolt 414 passes vertically through the locking hole 410 through the third pin 409. The upper end of the seventh bolt 414 is equipped with a tightening head 415, and the lower end is threadedly connected to a fifth nut 417. A tightening ring 418 that can abut against the lower surface of the ring bracket 401 is fixed on the fifth nut 417. A tightening block 416 that can abut against the upper surface of the ring bracket 401 is fixed on the tightening head 415.

[0039] By cooperating with the seventh bolt 414, the tightening head 415, the tightening block 416, the tightening ring 418 and the circular bracket 401, the position of the guide ring 411 can be fixed, thereby fixing the angle and position of the sector piece 406. In this way, when the bottom bracket mechanism 3 supports the installation base 1 in the early stage, a large space can be maintained between the three sector pieces 406 to avoid affecting the installation base 1 when adjusting their positions. When the flexible bracket mechanism 4 supports the installation base 1 in the later stage, it can stabilize the position of the sector piece 406, so that it can provide stable support for the installation base 1.

[0040] The fan-shaped pieces 406 have clamping teeth 4061 distributed on their central corner sides, and a rubber layer is attached to the surface of the clamping teeth 4061. The clamping teeth 4061 and the rubber layer make the support of the three fan-shaped pieces 406 on the mounting base 1 more stable.

[0041] The through support rod 5 includes multiple high-strength screw rods 501 connected in sequence. The two ends of the high-strength screw rod 501 are respectively provided with extension screw holes 502 and extension bolts 503. The extension screw hole 502 of the next high-strength screw rod 501 is connected to the extension bolt 503 of the previous high-strength screw rod 501. The flexible support mechanism 4 also includes a balance frame 402. Two strip-shaped balance frames 402 are arranged in parallel and fixed on both sides of the ring support 401 respectively. Both ends of the balance frame 402 are provided with horizontal balance holes 4021. The ring support 401 is also provided with two balance ears 4012 with horizontal holes. The two balance ears 4012 correspond to the balance holes 4021 at both ends of the balance frame 402. Two through-support rods 5 pass through the middle of the multiple flexible support mechanisms 4, through balance holes 4021 and balance ears 4012, and are connected at both ends to the bracket mechanism 6. The design of the balance holes 4021 and balance ears 4012 allows the flexible support mechanism 4 to be stably installed on the through-support rods 5.

[0042] like Figure 9As shown, multiple high-strength screws 501 are connected in sequence and extend their length to form a through-support rod 5, which can stably support the flexible support mechanism 4, preventing the flexible support mechanism 4 from being affected by complex geological conditions. The combination design of multiple high-strength screws 501 also facilitates construction. After one high-strength screw 501 is installed with one or two flexible support mechanisms 4, it can be connected to the already installed high-strength screws 501.

[0043] like Figure 10 As shown, the bracket mechanism 6 includes a fixed bracket 601, a support platform 602, adjusting bolts 603, and a top bracket 607. The support platform 602 is horizontally arranged on the fixed bracket 601. Adjusting bolts 603 are vertically fixed at the four corners of the support platform 602. Two strip-shaped top brackets 607 are fitted onto the corresponding two adjusting bolts 603. Adjusting nuts 611 are installed on the adjusting bolts 603 at the positions corresponding to the upper and lower sides of the top brackets 607. Both ends of the top bracket 607 are provided with bracket holes 608, and the two ends of the two through support rods 5 pass through the corresponding bracket holes 608.

[0044] The top bracket 607 in the bracket mechanism 6 is mounted on the adjusting bolt 603 via the adjusting nut 611, thereby allowing the height of the top bracket 607 to be adjusted to offset some of the terrain elevation differences, ensuring the horizontality of the through support rod 5, and thus ensuring the verticality of the mounting base 1. When the terrain elevation difference is large, exceeding the adjustable range of the adjusting bolt 603, the bracket mechanism 6 can be raised.

[0045] The support platform 602 is also provided with four mounting blocks 604. A data scale 605 is vertically provided on the top surface of the mounting block 604. The data scale 605 is marked with a height value. The support platform 602 is also provided with a leveling device 606. The leveling device 606 is used to help the support platform 602 keep horizontal in the length direction of the support rod 5. Two detection holes 609 are opened on each of the two top brackets 607. An indicator arrow 610 is provided at each detection hole 609, and a data scale 605 passes through the corresponding detection hole 609.

[0046] The data scale 605 can assist in adjusting the height of the top bracket 607, and can keep the top bracket 607 horizontal while keeping the platform 602 horizontal.

[0047] The leveling device 606 is used to assist the support platform 602 in maintaining a horizontal position along the length of the support rod 5. It can be any existing level or spirit level. In this invention, a structure integrated with the data scale 605 is provided, that is, a hollow ruler is set on one side of the data scale 605, and liquid is encapsulated inside the hollow ruler. Whether the support platform 602 is horizontal is determined by whether the liquid level is horizontal. Whether the liquid level is horizontal can be determined with the help of numerical markings on the data scale 605, or multiple horizontal markings can be set near the liquid level on the hollow ruler to assist in the determination.

[0048] Locking nuts 504 are provided at both the through-hole 4021 and the bracket hole 608 on the through-support rod 5. The locking nuts 504 fix the position of the flexible support mechanism 4 on the through-support rod 5, and the position of the flexible support mechanism 4 can be precisely adjusted by tightening the locking nuts 504. The locking nuts 504 at the bracket mechanism 6 are mainly used to fix the end of the through-support rod 5 to a suitable position on the bracket mechanism 6.

[0049] like Figure 11 As shown, the bottom support mechanism 3 includes a base frame 301, a baffle 304, an upper support 305, and a support frame 306. The upper support 305 is arranged parallel above the base frame 301. The base frame 301 is a square frame, and the upper support 305 is a square frame smaller than the base frame 301. The base frame 301 and the upper support 305 are supported and fixed by four sets of diagonal braces 302. Each of the four corners of the base frame 301 is provided with a baffle 304. The baffle 304 has a right angle, and its right angle end is in contact with the inner corner of the base frame 301. The bottom surface of the baffle 304 is flush with the bottom surface of the base frame 301. A mounting bracket 3041 is fixed on each of the two right angle sides of the baffle 304. A second bolt 303 is fixed on the base frame 301 at the corresponding position of the mounting bracket 3041. The mounting bracket 3041 has a hole and is fitted onto the corresponding second bolt 303, and is fastened by a first nut 3042. Two fourth bolts 3064 are fixed on each side of the support frame 306. The fourth bolts 3064 pass through the first through hole 3051 on the upper bracket 305 and are then fastened by the third nut 3065. The support frame 306 is a hollow square column. Holes are opened on the opposite side walls of the support frame 306 and fourth nuts 309 are fixed thereon. The sixth bolt 308 is threaded into the fourth nut 309 and passes through the side wall of the support frame 306. The top seat 3081 is fixed to the end of the sixth bolt 308 located inside the support frame 306. The upper part of the mounting base 1 extends out from the support frame 306.

[0050] The base support mechanism 3 is used for the initial placement of the flexible support mechanism 4 and the supporting mounting base 1. The base frame 301 is placed around the pile foundation hole 2, and the upper support 305 supports the support frame 306 above the pile foundation hole 2. Before the flexible support mechanism 4 and the through support rod 5 are installed, the flexible support mechanism 4 can be placed on the support frame 306. In addition, the sixth bolt 308 on the support frame 306 can be tightened against the mounting base 1 to provide stable support for the mounting base 1. Furthermore, a baffle 304 can be installed on the base frame 301 to increase the contact area between the base support mechanism 3 and the ground, and better resist the influence of complex geological areas on the base support mechanism 3.

[0051] The bottom support mechanism 3 is divided into two parts at the center line. The two halves of the bottom frame 301 and the upper support 305 are connected as one unit by the first bolt 3011 and the nut. The joint surface of the two halves of the support frame 306 is provided with a fourth through hole 3062. The third bolt 3063 passes through the fourth through hole 3062 and is connected as one unit by the nut. The upper bracket 305 has a second through hole 3052 perpendicular to the fourth bolt 306 at each of the two supporting halves. A second nut 3053 is fixed at the second through hole 3052. The two supporting halves 306 have a third through hole 3061 corresponding to the second through hole 3052. The fifth bolt 307 passes through the second through hole 3052 and the third through hole 3061 and is threaded to the second nut 3053. The fifth bolt 307 makes the supporting frame 306 more securely mounted on the upper bracket 305.

[0052] The above structure makes the bottom support mechanism 3 an assembly type, which facilitates its installation at the pile foundation hole 2. It does not require raising the mounting base 1 to pass through the support frame 306. The bottom support mechanism 3 can be assembled and installed on both sides of the mounting base 1.

[0053] like Figure 1 , Figure 2 As shown, this invention also provides a construction method for prefabricated flexible supports under the aforementioned complex geological conditions, comprising the following steps: S1. In complex geological areas, multiple rows of pile foundation holes 2 are opened, and an installation base 1 is placed in each pile foundation hole 2; S2. Place a corresponding number of bracket mechanisms 6 on the hard geological areas on both sides of the complex geological area, corresponding to the number of rows of pile foundation holes 2. Measure and calibrate the height of the bracket mechanisms 6, level the support platform 602 in the bracket mechanism 6, and determine the height position of the top bracket 607 on the adjusting bolt 603. When leveling the support platform 602 in the bracket mechanism 6, the soil at the higher position can be removed, or the lower position can be raised. After placement, there is one bracket mechanism 6 on each side of each row of pile foundation holes 2. S3. Prepare the same number of bottom support mechanisms 3 and flexible support mechanisms 4 as the pile foundation holes 2. Assemble the bottom support mechanisms 3 at the corresponding pile foundation holes 2, and make the upper part of the mounting base 1 pass through the support frame 306. Tighten the sixth bolt 308, and the top seat 3081 presses against the mounting base 1 to temporarily fix the mounting base 1. S4. Place the flexible support mechanism 4 on the support frame 306 in the corresponding bottom support mechanism 3; S5. Connect multiple high-strength screws 501 in sequence to extend their length. During the connection process, insert the high-strength screws 501 into the corresponding balance holes 4021 and balance ears 4012 in the flexible support mechanism 4, and tighten the lock nuts 504 at the corresponding positions until the high-strength screws 501 penetrate all the flexible support mechanisms 4 in their row. S6. Insert two high-strength screws 501 in the same row into the bracket holes 608 at both ends of the top bracket 607 in the corresponding bracket mechanism 6 and tighten the locking nuts 504. Then connect them with the high-strength screws 501 that have been connected to form two through support rods 5. The two through support rods 5 support all the flexible support mechanisms 4. Fine-tune the locking nuts 504 so that the flexible support mechanism 4 is located directly above the corresponding bottom support mechanism 3. S7. Concrete is poured into the foundation hole 2 of the pile foundation. S8. After the concrete pouring is completed, in order to prevent the installation base 1 from shifting due to the influence of complex geological conditions while waiting for the concrete to form, it is changed to be supported by the flexible support mechanism 4. That is, loosen the top tightening ring 418, and the spring 413 pushes the fan-shaped piece 406 through the guide ring 411, the third pin 409, and the rocker arm 408, so that the central corner side of the three fan-shaped pieces 406 is pressed against the installation base 1. Lock the top tightening ring 418 to complete the support of the installation base 1 by the flexible support mechanism 4. Loosen the sixth bolt 308 to release the fixation of the bottom support mechanism 3 to the installation base 1. Even if the bottom support mechanism 3 settles or shifts due to the influence of complex geological conditions while waiting for the concrete to form, it will not affect the position of the installation base 1. S9. After the concrete has fully solidified, remove all flexible support mechanisms 4, through support rods 5, bottom support mechanisms 3, and bracket mechanisms 6, thus completing the pouring and fixing of the installation base under complex geological conditions.

[0054] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A prefabricated flexible support for complex geological conditions, characterized in that: It includes a bracket mechanism (6), a bottom support mechanism (3), a flexible support mechanism (4), and a through support rod (5). Two bracket mechanisms (6) are respectively set on the hard geological areas on both sides of the complex geological area. At least one bottom support mechanism (3) set on the complex geological area is located between the two bracket mechanisms (6) and arranged in a row. A flexible support mechanism (4) is set above each bottom support mechanism (3). The bottom support mechanism (3) corresponds one-to-one with the pile foundation hole (2) opened on the complex geological area. An installation base (1) is set in the pile foundation hole (2). The upper part of the installation base (1) passes through the corresponding bottom support mechanism (3) and flexible support mechanism (4). The flexible support mechanism (4) includes a circular ring support (401), a stabilizing platform (403), and fan-shaped plates (406). Three stabilizing platforms (403) are evenly distributed on the upper surface of the circular ring support (401). An arc-shaped elongated hole (4011) is opened on the circular ring support (401) between every two stabilizing platforms (403). A support (404) is provided inside each stabilizing platform (403). The three fan-shaped plates (406) are spaced apart from the three stabilizing platforms (403). One end of the arc side is hinged to the corresponding bracket (404) via the first pin (405), and the other end is hinged to one end of the rocker arm (408) via the second pin (407). The central angle side of the fan-shaped plate (406) faces the center of the ring bracket (401). A third pin (409) is installed on the other end of the rocker arm (408). A guide ring (411) is fitted on the third pin (409). The guide ring (411) is fixed to one end of the guide rod (412). A spring (413) is fitted on the outside of the guide rod (412). The guide ring (411) is slidably disposed in the corresponding arc-shaped elongated hole (4011), the guide rod (412) is arc-shaped and disposed along the arc-shaped elongated hole (4011), one end of the guide rod (412) away from the guide ring (411) is inserted into the arc-shaped guide hole on the inner wall of the arc-shaped elongated hole (4011), one end of the spring (413) is pressed on the guide ring (411), and the other end is pressed on the inner wall of the arc-shaped elongated hole (4011); The upper part of the mounting base (1) extends from the middle of the three fan-shaped pieces (406); The two ends of the through support rod (5) are respectively connected to two bracket mechanisms (6), and the flexible support mechanism (4) is connected to the middle of the through support rod (5).

2. The prefabricated flexible support under complex geological conditions according to claim 1, characterized in that: The third pin (409) has an axial locking hole (410). The seventh bolt (414) passes vertically through the locking hole (410) through the third pin (409). The upper end of the seventh bolt (414) is equipped with a tightening head (415), and the lower end is threadedly connected to a fifth nut (417). The fifth nut (417) is fixed with a tightening ring (418) that can abut against the lower surface of the ring bracket (401). The tightening head (415) is fixed with a tightening block (416) that can abut against the upper surface of the ring bracket (401).

3. A prefabricated flexible support under complex geological conditions according to claim 1 or 2, characterized in that: The fan-shaped piece (406) has tightening teeth (4061) distributed on the central corner side, and a rubber layer is attached to the surface of the tightening teeth (4061).

4. The prefabricated flexible support under complex geological conditions according to claim 2, characterized in that: The through support rod (5) includes multiple high-strength screw rods (501) connected in sequence. The two ends of the high-strength screw rod (501) are respectively provided with extension screw holes (502) and extension bolts (503). The extension screw hole (502) of the next high-strength screw rod (501) is connected to the extension bolt (503) of the previous high-strength screw rod (501). The flexible support mechanism (4) also includes a balance frame (402). Two strip-shaped balance frames (402) are arranged in parallel and fixed on both sides of the ring support (401). Horizontal balance holes (4021) are opened at both ends of the balance frame (402). Two balance ears (4012) with horizontal holes are also provided on the ring support (401). The two balance ears (4012) correspond to the balance holes (4021) at both ends of the balance frame (402). The middle of the two through support rods (5) passes through the balance perforation (4021) and balance lug (4012) on the flexible support mechanism (4), and the two ends are connected to the bracket mechanism (6).

5. The prefabricated flexible support under complex geological conditions according to claim 4, characterized in that: The bracket mechanism (6) includes a fixed bracket (601), a support platform (602), adjusting bolts (603), and a top bracket (607). The support platform (602) is horizontally set on the fixed bracket (601). Adjusting bolts (603) are vertically fixed at the four corners of the support platform (602). Two strip-shaped top brackets (607) are fitted on the corresponding two adjusting bolts (603). Adjusting nuts (611) are installed on the adjusting bolts (603) at the positions corresponding to the upper and lower sides of the top brackets (607). Both ends of the top bracket (607) are provided with bracket holes (608), and the two ends of the two through support rods (5) pass through the corresponding bracket holes (608).

6. The prefabricated flexible support under complex geological conditions according to claim 5, characterized in that: The support platform (602) is also provided with four mounting blocks (604), and a data scale (605) is vertically provided on the top surface of the mounting block (604). The data scale (605) is marked with a height value. The support platform (602) is also provided with a leveling device (606), which is used to help the support platform (602) maintain a horizontal position in the length direction of the through support rod (5). Two detection holes (609) are opened on each of the two top brackets (607), and an indicator arrow (610) is provided at each detection hole (609). The data scale (605) passes through the corresponding detection hole (609).

7. The prefabricated flexible support under complex geological conditions according to claim 6, characterized in that: Locking nuts (504) are provided at the through balance hole (4021) and bracket hole (608) on the through support rod (5).

8. The prefabricated flexible support under complex geological conditions according to claim 7, characterized in that: The base support mechanism (3) includes a base frame (301), a baffle (304), an upper support (305), and a support frame (306). The upper support (305) is arranged parallel above the base frame (301). The base frame (301) is a square frame, and the upper support (305) is a square frame smaller than the base frame (301). The base frame (301) and the upper support (305) are supported and fixed by four sets of diagonal braces (302). Each of the four corners of the base frame (301) is provided with a baffle (304). The baffle (304) has a right angle, and its right angle end is in contact with the inner angle of the base frame (301). The bottom surface of the baffle (304) is flush with the bottom surface of the base frame (301). A mounting bracket (3041) is fixed on each of the two right angle sides of the baffle (304). A second bolt (303) is fixed on the base frame (301) at the corresponding position of the mounting bracket (3041). The mounting bracket (3041) has a hole and is fitted onto the corresponding second bolt (303) and is fastened by a first nut (3042). Two fourth bolts (3064) are fixed on each side of the support frame (306). The fourth bolts (3064) pass through the first through hole (3051) on the upper bracket (305) and are then fastened by the third nut (3065). The support frame (306) is a hollow square column. Holes are opened on the opposite side walls of the support frame (306) and fourth nuts (309) are fixed thereon. The sixth bolt (308) is threaded into the fourth nut (309) and passes through the side wall of the support frame (306). The end of the sixth bolt (308) located inside the support frame (306) is fixed with a top seat (3081). The upper part of the mounting base (1) extends out from the support frame (306).

9. The prefabricated flexible support under complex geological conditions according to claim 8, characterized in that: The bottom support mechanism (3) is divided into two parts at the center line. The two halves of the bottom frame (301) and the upper support (305) are connected as one unit by the first bolt (3011) and the nut. The joint surface of the two halves of the support frame (306) is provided with a fourth through hole (3062). The third bolt (3063) passes through the fourth through hole (3062) and is connected as one unit by the nut. The upper bracket (305) is provided with a second through hole (3052) perpendicular to the fourth bolt (3064) at each of the two half support frames (306), and a second nut (3053) is fixed at the second through hole (3052). The two half support frames (306) are provided with a third through hole (3061) corresponding to the second through hole (3052). The fifth bolt (307) is inserted into the second through hole (3052) and the third through hole (3061) and is threadedly connected to the second nut (3053).

10. The construction method of the prefabricated flexible support under complex geological conditions as described in claim 9, characterized in that: Includes the following steps: S1. In complex geological areas, multiple rows of pile foundation holes (2) are opened, and an installation base (1) is placed in each pile foundation hole (2). S2. Place a corresponding number of bracket mechanisms (6) on the hard geological area on both sides of the complex geological area, corresponding to the number of rows of the pile foundation hole (2), and measure and calibrate the height position of the bracket mechanism (6) to determine the height position of the top bracket (607) on the adjusting bolt (603). S3. Prepare a bottom support mechanism (3) and a flexible support mechanism (4) with the same number as the pile foundation holes (2). Assemble the bottom support mechanism (3) at the corresponding pile foundation holes (2) and make the upper part of the mounting base (1) pass through the support frame (306). Tighten the sixth bolt (308) and the top seat (3081) presses against the mounting base (1) to temporarily fix the mounting base (1). S4. Place the flexible support mechanism (4) on the support frame (306) in the corresponding bottom support mechanism (3); S5. Connect multiple high-strength screws (501) in sequence to extend their length. During the connection process, insert the high-strength screws (501) into the corresponding balance holes (4021) and balance ears (4012) in the flexible support mechanism (4), and tighten the lock nuts (504) at the corresponding positions until the high-strength screws (501) penetrate all the flexible support mechanisms (4) in their row. S6. Insert two high-strength screws (501) in the same row into the bracket holes (608) at both ends of the top bracket (607) in the corresponding bracket mechanism (6) and tighten the locking nuts (504). Then connect them with the high-strength screws (501) that have been connected to form two through support rods (5). The two through support rods (5) support all the flexible support mechanisms (4). Fine-tune the locking nuts (504) so ​​that the flexible support mechanism (4) is located directly above the corresponding bottom support mechanism (3). S7. Concrete is poured into the foundation hole (2) of the pile foundation; S8. After the concrete is poured, in order to prevent the installation base (1) from shifting due to the influence of complex geological areas during the waiting time for the concrete to form, it is changed to be supported by a flexible support mechanism (4). That is, loosen the top tightening ring (418), and the spring (413) pushes the fan-shaped piece (406) through the guide ring (411), the third pin (409), and the rocker arm (408) so that the central corner side of the three fan-shaped pieces (406) is pressed against the installation base (1). Lock the top tightening ring (418) to complete the support of the flexible support mechanism (4) for the installation base (1). Loosen the sixth bolt (308) to release the fixation of the bottom support mechanism (3) on the installation base (1). During the waiting time for the concrete to form, even if the bottom support mechanism (3) settles or shifts due to the influence of complex geological areas, it will not affect the position of the installation base (1). S9. After the concrete is fully formed, remove all flexible support mechanisms (4), through support rods (5), bottom support mechanisms (3) and bracket mechanisms (6) to complete the pouring and fixing of the installation base under complex geological conditions.

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