Foundation pit slope protection reinforcing device for construction engineering

Abstract

The application belongs to the technical field of foundation pit support, and particularly relates to a foundation pit slope protection and reinforcement device for construction engineering; the device comprises fixing piles, support cross bars and reinforcement baffle plates; the reinforcement baffle plates are laid on the reinforcement area of the foundation pit, the support cross bars are pressed on the reinforcement baffle plates, and the two ends of the support cross bars are connected with the fixing piles; the fixing piles comprise an insertion rod, a sleeve and a pile top which are connected in sequence; the fixing pile further comprises a mounting and locking mechanism and a locking driving mechanism; the mounting and locking mechanism comprises a driving screw rod and a gear, the gear is rotatably mounted on the pile top, and the driving screw rod is threadedly screwed with the gear through the gear; the lower end of the driving screw rod is fixedly connected with a connecting rod located in the sleeve; the lower end of the connecting rod is fixedly connected with a pushing rod located in the insertion rod, the side surface of the pushing rod is hingedly connected with a jacking rod, the insertion rod is provided with assembly perforations corresponding to the jacking rods in one-to-one manner, and the jacking rods movably extend into the assembly perforations; the foundation pit slope protection and reinforcement device for construction engineering has the advantages of convenient installation and high support strength.

Description

Technical Field

[0001] This invention belongs to the field of foundation pit support technology, specifically relating to a foundation pit slope protection and reinforcement device for building engineering. Background Technology

[0002] In foundation pit engineering, localized soil softness or slope instability often occurs, requiring targeted reinforcement. Currently, reinforcement of such localized areas often involves monolithic concrete pouring or large-area driving of retaining piles, which is cumbersome, costly, and lacks flexible and efficient specialized equipment. Therefore, a high-strength slope protection and reinforcement device that can be quickly installed and is suitable for localized areas of foundation pits is needed. Summary of the Invention

[0003] This invention aims to address the problems of cumbersome construction, high cost, and poor flexibility in current methods for reinforcing weak or unstable areas of foundation pits.

[0004] The present invention provides the following technical solution: a foundation pit slope protection and reinforcement device for building engineering, comprising fixed piles, supporting crossbars and reinforcement baffles; the reinforcement baffles are laid on the reinforcement area of ​​the foundation pit, the supporting crossbars are pressed on the reinforcement baffles, and the two ends of the supporting crossbars are connected to the fixed piles; The fixed pile consists of a rod, a sleeve, and a pile top connected in sequence. The rod is inserted into the soil of the foundation pit to fix the pile top to the surface of the foundation pit. The fixed pile also includes an installation locking mechanism and a locking drive mechanism. The installation locking mechanism includes a drive screw and a gear. The gear is rotatably mounted on the top of the pile. The inner hole of the gear is a threaded hole. The drive screw passes through the gear and engages with the gear thread. The locking drive mechanism is connected to the gear for inputting torque. The lower end of the drive screw is fixedly connected to the connecting rod located inside the sleeve. The connecting rod can slide axially and be fixed circumferentially inside the sleeve. The lower end of the connecting rod is fixedly connected to the push rod located inside the insert rod. The push rod is hinged to the side of the push rod and has a mounting hole that corresponds to the push rod. The push rod extends into the mounting hole. When the drive screw pushes or pulls the push rod, the push rod extends out or retracts from the mounting hole.

[0005] Furthermore, a cavity running through the front and rear is opened on the top of the pile, and the locking drive mechanism and drive screw are located in the cavity; The locking drive mechanism includes a fixed slider and a slide. The fixed slider is fixed on the top of the pile. The inner wall of the slide is provided with a slide rail. The slide and the fixed slider form a nested sliding structure through the slide rail. A connecting block is installed at one end of the slide, and a pull handle is provided on the connecting block. A rack is installed on the side of the slide, and the rack meshes with a gear.

[0006] Furthermore, a tapered roller bearing is connected between the gear and the top of the pile. An upper convex ring is provided on the bottom surface of the gear, and a lower convex ring is provided on the top of the pile. The tapered roller bearing is nested between the upper and lower convex rings, and the gear forms a rotating structure with the top of the pile through the tapered roller bearing.

[0007] Furthermore, the push rod includes a square rod segment, with a fixed seat installed on each face of the square rod segment. A hinge is provided on the fixed seat, and the push rod is connected to the hinge.

[0008] Furthermore, a limit stop is installed on the side of the connecting rod, and a limit rail is provided on the inner wall of the sleeve. The limit stop and the limit rail slide together to allow the connecting rod to slide axially and be fixed circumferentially within the sleeve.

[0009] Furthermore, the supporting crossbar includes end fixings and several unit bars; One end of the unit rod is equipped with a first clamp and the other end is equipped with a connecting screw. The first clamp has a screw hole. Adjacent unit rods are connected by the connecting screw and the screw hole of the first clamp through threaded engagement. The first clamp has two hooks and is fastened to the sleeve of the fixed pile through the hooks. The connecting screw of the unit rod at the end is connected to the end fixing part; the end fixing part has a through hole, and the connecting screw passes through the through hole and is threaded to tighten the nut; the end fixing part also has two hooks, and the end fixing part is fastened to the sleeve of the fixing pile through the hooks.

[0010] Furthermore, the reinforced baffle includes a unit plate; the upper end of the unit plate is provided with a ramp and the lower end is provided with a sedimentation chamber, the top surface of the sedimentation chamber is an open inlet and the side is provided with a water outlet.

[0011] Furthermore, each row of unit plates has three support crossbars: the first support crossbar is located at the bottom of the inclined platform, the second support crossbar is located at the top of the sedimentation chamber, and the third support crossbar is located in the middle.

[0012] Furthermore, a striking cap is installed at the top of the pile, and the striking cap is a block of ductile iron.

[0013] Compared with the prior art, the advantages of the present invention are: Firstly, the installation strength of the fixed pile is improved by inserting a rod. The push rod set inside the rod pushes the top rod to unfold as the drive screw goes down, and the top rod is fully pushed into the soil to take root. The fixed pile is installed stably without concrete pouring. The support crossbar is connected to the fixed pile, and the support crossbar presses down on the reinforcement baffle, providing support for the reinforcement baffle.

[0014] Secondly, the fixed pile can be quickly fixed by inserting a rod. A ductile iron hammer cap is installed at the top of the pile. The hammer cap can be directly hammered with a hammer to insert the rod, which is integrated with the pile top, into the soil of the foundation pit. The ductile iron hammer cap has both toughness and fatigue performance, is resistant to hammering, and has a long service life.

[0015] Third, the locking drive mechanism quickly unfolds the push rod. When the slide of the locking drive mechanism moves smoothly, the rack on the slide will also move. The rack drive gear rotates and drives the drive screw to move, which in turn drives the screw to push the push rod, and the push rod on the push rod unfolds synchronously. Attached Figure Description

[0016] Figure 1 A schematic diagram illustrating the use of foundation pit slope protection and reinforcement devices in construction engineering. Figure 2 A schematic diagram showing the connection between the end fixing component, the fixing pile, and the unit rod; Figure 3 A schematic diagram of the locking drive mechanism and the mounting of the locking mechanism; Figure 4 A schematic diagram of the locking drive mechanism and the installation of the locking mechanism (section of the pile top). Figure 5 A schematic diagram of the locking drive mechanism in the pushed-in state; Figure 6 A schematic diagram of the locking drive mechanism in the open state; Figure 7 This is a schematic diagram showing the connection between unit rods; Figure 8 A schematic diagram of the supporting crossbar; Figure 9 This is a schematic diagram showing the connection between the unit rod and the end fixing component; Figure 10 Schematic diagram of the connection between the drive screw and the connecting rod Figure 1 ; Figure 11 Schematic diagram of the connection between the drive screw and the connecting rod Figure 2 ; Figure 12 A schematic diagram showing the installation of the drive screw, connecting rod, and push rod; Figure 13 A schematic diagram showing the connection between the drive screw, connecting rod, and push rod; Figure 14 This is a schematic diagram showing the connection between the push rod and the push rod; Figure 15 This is a schematic diagram of a unit board; Figure 16 This is a schematic diagram of the installation of a tapered roller bearing.

[0017] In the diagram: 1-Fixed pile; 11-Pile top; 12-Peak top; 13-Locking drive mechanism; 1301-Fixed slider; 1302-Slide carriage; 1303-Connecting block; 1304-Pull handle; 1305-Slide rail; 1306-Rack; 14-Mounting locking mechanism; 1401-Gear; 1402-Drive screw; 1403-Tap roller bearing; 1404-Connecting rod; 1405-Limiting clip; 1406-Push rod; 1407-Fixed base; 1408-Hinge; 1409-Push rod; 15 - Sleeve; 1501 - Limiting rail; 16- Insert rod; 1601- Assembly hole; 2-Support crossbar; 21-Unit rod; 22-Connecting screw; 23-First clamp; 24-Screw hole; 25-End fixing piece; 26-Through hole; 27-Fastening nut 3-Reinforced baffle; 31-Unit plate; 32-Inclined platform; 33-Sedimentation chamber; 34-Water outlet. Detailed Implementation

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] like Figure 1 As shown: A foundation pit slope protection and reinforcement device for building construction includes fixed piles 1, supporting crossbars 2, and reinforcement baffles 3. The reinforcement baffles 3 are laid on the reinforcement area of ​​the foundation pit, and the supporting crossbars 2 press down on the reinforcement baffles 3. Both ends of the supporting crossbars 2 are connected to the fixed piles 1. The reinforcement baffles 3 directly cover the surface of the foundation pit slope (reinforcement area), providing initial protection. The supporting crossbars 2 press the reinforcement baffles 3 tightly and transfer the supporting force to the deep soil through the fixed piles 1, forming an integrated force-bearing system that effectively prevents further collapse of the reinforcement area.

[0020] like Figures 3-5 , Figures 10-12 As shown: The fixed pile 1 includes a rod 16, a sleeve 15 and a pile top 11 connected in sequence. The rod 16 is inserted into the soil of the foundation pit to fix the pile top 11 to the surface of the foundation pit.

[0021] A striking cap 12 is installed at the top of the pile top 11. The striking cap 12 is made of ductile iron. The striking cap 12 can be directly hammered with tools such as hammers. The ductile iron striking cap 12 has both toughness and fatigue performance, and has a longer service life. The striking cap 12 will not be damaged even under long-term hammering. The striking cap 12 will be directly hammered to insert the insertion rod 16, which is integrated with the pile top 11, into the foundation pit soil, and the initial installation of the insertion rod 16 will be completed quickly.

[0022] The fixed pile 1 also includes a mounting locking mechanism 14 and a locking drive mechanism 13. The mounting locking mechanism 14 includes a drive screw 1402 and a gear 1401. The gear 1401 is rotatably mounted on the pile top 11. The inner hole of the gear 1401 is a threaded hole. The drive screw 1402 passes through the gear 1401 and is threaded into the gear 1401. The locking drive mechanism 13 is connected to the gear 1401 for inputting torque.

[0023] The lower end of the drive screw 1402 is fixedly connected to the connecting rod 1404 located inside the sleeve 15. The connecting rod 1404 can slide axially and be fixed circumferentially inside the sleeve 15. Since the drive screw 1402 can only slide axially and cannot rotate with the connecting rod 1404, when the locking drive mechanism 13 drives the gear 1401 to rotate, the gear 1401 and the drive screw 1402 are screwed together, which will generate an axial thrust, thereby pushing the drive screw 1402 and the connecting rod 1404 fixedly connected to it to move axially.

[0024] The lower end of the connecting rod 1404 is fixedly connected to the push rod 1406 located inside the insert rod 16. The push rod 1406 has a push rod 1409 hinged to its side. The insert rod 16 has a mounting hole 1601 that corresponds to the push rod 1409. The push rod 1409 extends into the mounting hole 1601. When the drive screw 1402 pushes and pulls the push rod 1406, the push rod 1409 extends out of the mounting hole 1601 or retracts.

[0025] The connecting rod 1404 pushes the push rod 1406 downward; as the push rod 1406 moves downward, the hinged top rod 1409, constrained by the assembly hole 1601, changes its angle with the push rod 1406, and the top rod 1409 unfolds outward, protruding from the assembly hole 1601 and embedding into the surrounding soil, significantly enhancing the pull-out force and lateral bearing capacity of the fixed pile 1. The drive screw 1402, connecting rod 1404, and push rod 1406 are fixed together as one unit.

[0026] A limiting clip 1405 is installed on the side of the connecting rod 1404. The limiting clip 1405 is fixed to the connecting rod 1404 as a whole. A limiting rail 1501 is provided on the inner wall of the sleeve 15. The limiting clip 1405 and the limiting rail 1501 slide together so that the connecting rod 1404 can slide axially and be fixed circumferentially within the sleeve 15.

[0027] like Figure 13 , Figure 14 As shown: The push rod 1406 includes a square rod segment, and a fixed seat 1407 is installed on each vertical surface of the square rod segment. A hinge 1408 is provided on the fixed seat 1407, and the push rod 1409 is connected to the hinge 1408.

[0028] like Figure 3 , Figure 4 As shown: A cavity running through the front and back is opened on the top of the pile 11, and the locking drive mechanism 13 and the drive screw 1402 are located in the cavity.

[0029] like Figure 5 , Figure 6 As shown: The locking drive mechanism 13 includes a fixed slider 1301 and a slide 1302. The fixed slider 1301 is fixed on the pile top 11. The inner wall of the slide 1302 is provided with a slide rail 1305. The slide 1302 and the fixed slider 1301 form a nested sliding structure through the slide rail 1305. With the fixed slider 1301 as the guide support, the slide 1302 can slide linearly on the pile top 11. A connecting block 1303 is installed at one end of the slide 1302. A pull handle 1304 is provided on the connecting block 1303. A rack 1306 is installed on the side of the slide 1302. The rack 1306 meshes with a gear 1401.

[0030] The rack 1306 and the slide 1302 are integrated into one unit. The rack 1306 meshes with the gear 1401. By pushing and pulling the slide 1302 via the handle 1304, the rack 1306 mounted on the side of the slide 1302 also moves accordingly. As the rack 1306 moves, it drives the gears 1401 on both sides to rotate. The rotation of the gears 1401 drives the screw 1402 to move. The handle 1304 increases the operator's flexibility and enables convenient operation of the locking drive mechanism 13.

[0031] like Figure 12 , Figure 16 As shown: A tapered roller bearing 1403 connects the gear 1401 and the pile top 11. An upper convex ring is provided on the bottom surface of the gear 1401, and a lower convex ring is provided on the pile top 11. The tapered roller bearing 1403 is nested between the upper and lower convex rings, forming a rotating structure between the gear 1401 and the pile top 11 via the tapered roller bearing 1403. The tapered roller bearing 1403 can withstand radial loads and axial loads in a single direction, ensuring both flexible rotation of the gear 1401 and the axial load when the drive screw 1402 pushes the push rod 1406.

[0032] like Figure 8 , Figure 9As shown: The support crossbar 2 includes an end fixing member 25 and several unit bars 21. The number of unit bars 21 is configured according to the range of the foundation pit reinforcement area. After the several unit bars 21 are combined, the end fixing member 25 is installed at one end.

[0033] like Figure 7 , Figure 9 As shown: One end of the unit rod 21 is equipped with a first clamp 23 and the other end is equipped with a connecting screw 22. The first clamp 23 has a screw hole 24. Adjacent unit rods 21 are connected by the connecting screw 22 and the screw hole 24 of the first clamp 23, connecting several separate unit rods 21 into a whole rod. The first clamp 23 has two hooks. The first clamp 23 is fastened to the sleeve 15 of the fixed pile 1 through the hooks. The top 11 of the fixed pile 1 is pressed on the first clamp 23 to prevent it from popping up.

[0034] like Figure 2 As shown: the connecting screw 22 of the unit rod 21 at the end is connected to the end fixing member 25; the end fixing member 25 has a through hole 26, and the connecting screw 22 passes through the through hole 26 and is threaded to the fastening nut 27; the end fixing member 25 also has two hooks, and the end fixing member 25 is fastened to the sleeve 15 of the fixing pile 1 through the hooks, and the pile top 11 of the fixing pile 1 presses on the end fixing member 25 to prevent it from popping up.

[0035] After several unit rods 21 are connected to form a whole rod with a total length matching the length of the reinforcing baffle 3, the first clip 23 of the last unit rod 21 is hooked onto the sleeve 15 of the fixing pile 1 on one side of the reinforcing baffle 3. The connecting screw 22 of the first unit rod 21 passes through the sleeve 15 of the fixing pile 1 on the other side of the reinforcing baffle 3 and connects to the end fixing member 25. The end fixing member 25 is hooked onto the sleeve 15 of the fixing pile 1. The tightening nut 27 is screwed onto the connecting screw 22 to tighten the end fixing member 25, thus completing the connection between the supporting crossbar 2 and the fixing piles 1 on both sides of the reinforcing baffle 3.

[0036] like Figure 15 As shown: The reinforced baffle 3 adopts a modular structure and can be combined according to the range of the reinforced area. The reinforced baffle 3 includes a unit plate 31; the upper end of the unit plate 31 is provided with a ramp 32 and the lower end is provided with a sedimentation chamber 33. The top surface of the sedimentation chamber 33 is an open inlet and the side has a water outlet 34. The sedimentation chamber 33 performs sedimentation and filtration on the rainwater. Solids are deposited in the sedimentation chamber 33, and excess water flows out from the water outlet 34, thereby draining the clean water.

[0037] Each row of unit panels 31 has three supporting horizontal bars 2. The first supporting horizontal bar 2 is located at the bottom of the inclined platform 32, the second supporting horizontal bar 2 is located at the top of the sedimentation chamber 33, and the third supporting horizontal bar 2 is in the middle. Each row of unit panels 31 is firmly pressed onto the slope of the foundation pit by the three supporting horizontal bars 2. In the transverse direction, the unit panels 31 are embedded between the fixed piles 1 on both sides. In the longitudinal direction, the first supporting horizontal bar 2 cooperates with the inclined platform 32 to form a limit, and the second supporting horizontal bar 2 cooperates with the sedimentation chamber 33 to form a limit. Under the combined action of the fixed piles 1 and the supporting horizontal bars 2, the unit panels 31 are assembled into a whole and firmly "pressed" onto the reinforcement area of ​​the foundation pit, providing external support for the foundation pit.

[0038] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A foundation pit slope protection and reinforcement device for construction engineering, characterized in that: It includes a fixed pile (1), a support crossbar (2) and a reinforcing baffle (3); the reinforcing baffle (3) is laid on the reinforcing area of ​​the foundation pit, the support crossbar (2) is pressed on the reinforcing baffle (3), and the two ends of the support crossbar (2) are connected to the fixed pile (1); The fixed pile (1) includes a plug rod (16), a sleeve (15) and a pile top (11) connected in sequence. The plug rod (16) is inserted into the soil of the foundation pit to fix the pile top (11) to the surface of the foundation pit. The fixed pile (1) also includes a mounting locking mechanism (14) and a locking drive mechanism (13). The mounting locking mechanism (14) includes a drive screw (1402) and a gear (1401). The gear (1401) is rotatably mounted on the pile top (11). The inner hole of the gear (1401) is a threaded hole. The drive screw (1402) passes through the gear (1401) and engages with the gear (1401) by thread. The locking drive mechanism (13) is connected to the gear (1401) for inputting torque. The lower end of the drive screw (1402) is fixedly connected to the connecting rod (1404) located in the sleeve (15). The connecting rod (1404) can slide axially and be fixed circumferentially in the sleeve (15). The lower end of the connecting rod (1404) is fixedly connected to the push rod (1406) located in the insert rod (16). The push rod (1406) has a push rod (1409) hinged to its side. The insert rod (16) has a mounting hole (1601) that corresponds to the push rod (1409). The push rod (1409) extends into the mounting hole (1601). When the drive screw (1402) pushes and pulls the push rod (1406), the push rod (1409) extends out or retracts from the mounting hole (1601). The supporting crossbar (2) includes an end fixing member (25) and several unit bars (21); One end of the unit rod (21) is equipped with a first clamp (23) and the other end is equipped with a connecting screw (22). The first clamp (23) has a screw hole (24). Adjacent unit rods (21) are connected by the connecting screw (22) and the screw hole (24) of the first clamp (23) through threaded engagement. The first clamp (23) has two hooks. The first clamp (23) is fastened to the sleeve (15) of the fixed pile (1) through the hooks. The connecting screw (22) of the end unit rod (21) is connected to the end fixing part (25); the end fixing part (25) has a through hole (26), and the connecting screw (22) passes through the through hole (26) and is threaded to the fastening nut (27); the end fixing part (25) also has two hooks, and the end fixing part (25) is fastened to the sleeve (15) of the fixing pile (1) through the hooks; The reinforced baffle (3) adopts a modular structure and can be combined according to the range of the reinforced area; the reinforced baffle (3) includes a unit plate (31); the upper end of the unit plate (31) is provided with a ramp (32) and the lower end is provided with a sedimentation chamber (33). The top surface of the sedimentation chamber (33) is an open inlet and the side has a water outlet (34).

2. The foundation pit slope protection and reinforcement device for building engineering according to claim 1, characterized in that: The pile top (11) has a cavity that runs through the front and back, and the locking drive mechanism (13) and the drive screw (1402) are located in the cavity; The locking drive mechanism (13) includes a fixed slider (1301) and a slide (1302). The fixed slider (1301) is fixed on the top of the pile (11). The inner wall of the slide (1302) is provided with a slide rail (1305). The slide (1302) and the fixed slider (1301) form a nested sliding structure through the slide rail (1305). A connecting block (1303) is installed at one end of the slide (1302). A pull handle (1304) is provided on the connecting block (1303). A rack (1306) is installed on the side of the slide (1302). The rack (1306) meshes with a gear (1401).

3. The foundation pit slope protection and reinforcement device for building engineering according to claim 2, characterized in that: A tapered roller bearing (1403) is connected between the gear (1401) and the pile top (11). The bottom surface of the gear (1401) is provided with an upper convex ring, and the pile top (11) is provided with a lower convex ring. The tapered roller bearing (1403) is nested between the upper convex ring and the lower convex ring. The gear (1401) and the pile top (11) form a rotating structure through the tapered roller bearing (1403).

4. The foundation pit slope protection and reinforcement device for building engineering according to claim 3, characterized in that: The push rod (1406) includes a square rod segment, and a fixed seat (1407) is installed on each vertical surface of the square rod segment. A hinge (1408) is provided on the fixed seat (1407), and the push rod (1409) is connected to the hinge (1408).

5. The foundation pit slope protection and reinforcement device for building engineering according to claim 4, characterized in that: The connecting rod (1404) is equipped with a limiting clip (1405) on its side, and a limiting rail (1501) is provided on the inner wall of the sleeve (15). The limiting clip (1405) and the limiting rail (1501) slide together so that the connecting rod (1404) can slide axially and be fixed circumferentially within the sleeve (15).

6. The foundation pit slope protection and reinforcement device for building engineering according to claim 1, characterized in that: Each row of unit plates (31) has three support crossbars (2). The first support crossbar (2) is located at the bottom of the inclined platform (32), the second support crossbar (2) is located at the top of the sedimentation chamber (33), and the third support crossbar (2) is in the middle.

7. The foundation pit slope protection and reinforcement device for building engineering according to claim 1, characterized in that: The top of the pile top (11) is equipped with a striking top (12), which is a ductile iron block.

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