A protection device for subway protection area municipal bridge pile foundation construction

Abstract

The utility model relates to municipal construction protection technical field, concretely is a kind of protective device for subway protection area municipal bridge pile foundation construction, including ground, the concrete slab is poured in the ground top, the top of the concrete slab is equipped with a plurality of support plates, each support plate top is closely combined with damping grid, each damping grid top is closely combined with bottom damping plate, each bottom damping plate top is equipped with top damping plate, the inside of the ground is equipped with to be drilled area, the outside of the to be drilled area is equipped with a plurality of protective cylinder, the bottom of the protective cylinder of lowermost end is fixed with tool bit, the outside of the protective cylinder of lowermost end is fixed with protective pipe, the top of the protective cylinder of uppermost end is equipped with top connecting disc;The utility model prevents staff from entering the space surrounded by guardrail cross bar by the equipment of guardrail cross bar protection ground top, to prevent rotary drilling rig from hurting people, to protect staff.

Description

Technical Field

[0001] This utility model belongs to the field of municipal construction protection technology, specifically a protective device for the construction of municipal bridge pile foundations in a subway protection zone. Background Technology

[0002] With the advancement of intensive urban infrastructure construction, the spatial intersections between municipal bridges and subway lines are becoming increasingly frequent, requiring the construction of numerous bridge pile foundations within subway protection zones. Such construction places stringent requirements on vibration and settlement, thus necessitating protective measures during construction.

[0003] However, most existing protection methods only involve laying a rubber layer at the bottom of the rotary drilling rig to reduce vibration. This method has a poor vibration reduction effect. At the same time, there is a large gap between the outer cylinder of the existing protection device and the foundation, which makes the rotary drilling pile hole prone to collapse, resulting in poor protection effect. In order to solve the above problems, this utility model designs a protection device for the construction of municipal bridge pile foundations in subway protection zones. Utility Model Content

[0004] In view of the above situation and to overcome the defects of the prior art, this utility model provides a protective device for the construction of municipal bridge pile foundations in subway protection zones, which effectively solves the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a protective device for the construction of municipal bridge pile foundations in a subway protection zone, comprising a foundation, a plurality of guardrail crossbars on the top of the foundation, a concrete slab poured on the top of the foundation, a plurality of support plates on the top of the concrete slab, a vibration damping grid tightly attached to the top of each support plate, a bottom vibration damping plate tightly attached to the top of each vibration damping grid, a top vibration damping plate on the top of each bottom vibration damping plate, a top support plate on the top of each top vibration damping plate, a drilling area inside the foundation, a plurality of protective cylinders outside the drilling area, upper and lower protective cylinders fixedly connected by a connecting flange, a cutting head fixed to the bottom of the lowermost protective cylinder, a protective pipe fixed to the outside of the lowermost protective cylinder, a top connecting plate on the top of the uppermost protective cylinder, and a plurality of electric push rods fixed to the bottom of the top connecting plate.

[0006] Preferably, a plurality of guardrail support blocks are fastened to the top of the foundation by bolts, a guardrail vertical bar is fixed to the top of each guardrail support block, a plurality of guardrail positioning grooves are fixed to the side of each guardrail vertical bar, and each guardrail horizontal bar is tightly fitted with the guardrail positioning grooves on its exterior.

[0007] Preferably, a solenoid valve is fixed to the top of the top connecting plate, a mud conveying pump is fixed to the top of the solenoid valve, a mud conveying pipe is fixed to the top of the mud conveying pump, a controller is also fixed to the top of the top connecting plate, a battery is fixed to the front end of the controller, a positioning ring is fixed to the bottom of the battery, and the positioning ring is tightly fitted to the uppermost inner protective cylinder.

[0008] Preferably, the first protective cylinder has several mud outlet holes, the top of the protective pipe has a mud-blocking ring that is fixedly connected to the bottom protective cylinder, the top protective cylinder is fixedly connected to the top connecting plate through the top connecting flange, and each protective cylinder is fixedly connected to the inner protective cylinder inside it through several connecting rods.

[0009] Preferably, each of the electric actuators has an electric actuator support plate fixed at its bottom, and the bottom of each electric actuator is fastened to the concrete slab by bolts. Each bottom damping plate is fastened to the concrete slab by bolts. Each bottom damping plate has several damping rods fixed at its top. Each damping rod is provided with a damping spring on its exterior. Each damping rod is slidably connected to the top damping plate at its top. Each top damping plate is fixedly connected to the top support plate at its top by a connecting frame.

[0010] Compared with the prior art, the beneficial effects of this utility model are: (1) This utility model protects the equipment on the top of the foundation by guarding the guardrail horizontal bar, thereby preventing workers from entering the space enclosed by the guardrail horizontal bar, thereby preventing the rotary drilling rig from injuring people, thus protecting the workers. At the same time, the guardrail horizontal bar can be positioned by the guardrail positioning groove. The stability of the entire device can be ensured by pre-pouring concrete slabs, while preventing the foundation from collapsing, thereby ensuring the stability of the pile foundation construction, thus ensuring the safety of the pile foundation.

[0011] (2) This utility model uses a support plate to reduce vibration and a vibration-damping grid to reduce vibration, thereby preventing the borehole from collapsing, thus ensuring the drilling effect and construction effect. The vibration-damping spring can reduce the vibration of the top support plate, thereby reducing the vibration of the rotary drilling rig, thus preventing the vibration during drilling from damaging the buildings in the subway protection zone, thereby improving the safety of the buildings in the subway protection zone.

[0012] (3) This utility model facilitates the delivery of mud to the outside of the protective cylinder by using the protective pipe and the mud-blocking ring, while preventing the external mud from blocking the mud outlet hole, thereby ensuring the stability of the protective cylinder and the stability of the inner wall of the borehole, thus ensuring the stability of the pile foundation. At the same time, the cutter head facilitates the insertion of the protective cylinder into the foundation, thereby ensuring the drilling effect. Attached Figure Description

[0013] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0014] In the attached diagram: Figure 1 This is a schematic diagram of the overall design of this utility model; Figure 2 This is a schematic diagram of the overall top of this utility model; Figure 3 This is a schematic diagram of the top of the guardrail support block of this utility model; Figure 4 This is a schematic diagram of the overall bottom of this utility model; Figure 5 This is a schematic cross-sectional view of the present invention; Figure 6 This is a schematic cross-sectional view of the upper part of the present invention; Figure 7 This is a cross-sectional view of the lower end of the protective cylinder of this utility model; Figure 8 This is a cross-sectional view of the protective tube of this utility model; Figure 9 This is a schematic diagram of the top of the support plate of this utility model; Figure 10 This is a schematic diagram of the connecting flange of this utility model.

[0015] In the diagram: 1-Foundation; 2-Top support plate; 3-Top connecting plate; 4-Protective cylinder; 101-Guardrail support block; 102-Guardrail vertical bar; 103-Guardrail horizontal bar; 104-Guardrail positioning groove; 105-Concrete slab; 106-Drilling area; 201-Connecting frame; 202-Top vibration damping plate; 203-Vibration damping rod; 204-Vibration damping spring; 205-Bottom vibration damping plate; 206-Vibration damping grid Grid; 207-Support plate; 301-Controller; 302-Battery; 303-Mulch conveying pump; 304-Solenoid valve; 305-Electric push rod; 306-Positioning ring; 307-Mulch conveying pipe; 308-Electric push rod support plate; 401-Cutter head; 402-Protective pipe; 403-Inner casing; 404-Connecting flange; 405-Mud blocking ring; 406-Mulch outlet hole; 407-Connecting rod. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0017] Example 1, by Figures 1-2 , Figures 4-5 , Figure 9The present invention includes a foundation 1, which supports the entire device. The foundation 1 has several guardrail crossbars 103 on its top, made of alloy material. These crossbars protect the equipment on top of the foundation 1, preventing workers from entering the space enclosed by the crossbars and thus preventing injury from the rotary drilling rig. A concrete slab 105 is poured on top of the foundation 1. The concrete slab 105 is made of concrete and its levelness is checked during pouring. The concrete slab 105 supports the entire device and prevents collapse. Several support plates 207 are provided on top of the concrete slab 105. 7. The support plate 207, made of rubber material, is used for vibration damping. Each support plate 207 has a vibration damping grid 206 tightly fitted to its top. The vibration damping grid 206 has several honeycomb holes and is made of polyethylene material. The vibration damping grid 206 is used for vibration damping to prevent borehole collapse, thus ensuring drilling efficiency and construction effectiveness. Each vibration damping grid 206 has a bottom vibration damping plate 205 tightly fitted to its top. The bottom vibration damping plate 205 is made of alloy material and supports the vibration damping rod 203. Each bottom vibration damping plate 205 has a top vibration damping plate 202 at its top, also made of alloy material. For supporting the connecting frame 201, each of the top vibration damping plates 202 is provided with a top support plate 2, which is made of alloy material. The top support plate 2 is used to support the rotary drilling rig. The foundation 1 has a drilling area 106 inside, which is a pile foundation to be drilled. Several protective cylinders 4 are provided outside the drilling area 106. The protective cylinders 4 are made of alloy material and are used to position the inner protective cylinder 403. The upper and lower protective cylinders 4 are fixedly connected by a connecting flange 404, which is made of alloy material. The connecting flange 404 can ensure the stability of the upper and lower protective cylinders 4. A cutter head 401 is fixed at the bottom of the lowest protective cylinder 4. The head 401 is made of alloy material and is sharpened to facilitate the insertion of the protective cylinder 4 into the foundation 1. A protective tube 402 is fixed to the outside of the lowermost part of the protective cylinder 4. The protective tube 402 has an arc-shaped structure and is made of alloy material. The protective tube 402 and the mud-blocking ring 405 work together to facilitate the delivery of mud to the outside of the protective cylinder 4 while preventing external soil from clogging the mud outlet 406, thus ensuring the stability of the protective cylinder 4 and the inner wall of the borehole, thereby ensuring the stability of the pile foundation. A top connecting plate 3, made of alloy material, is provided at the top of the uppermost part of the protective cylinder 4 for easy insertion of the protective cylinder 4.Several electric push rods 305 are fixed to the bottom of the top connecting plate 3. These electric push rods 305 are extendable and retractable, thereby driving the top connecting plate 3 to rise and fall.

[0018] Example 2, based on Example 1, combined with... Figure 3 , Figures 6-8 , Figure 10As shown, the top of the foundation 1 is fastened with several guardrail support blocks 101 by bolts. The guardrail support blocks 101 are made of alloy material and support the guardrail vertical bars 102. Each guardrail support block 101 has a guardrail vertical bar 102 fixed to its top. The guardrail vertical bar 102 is also made of alloy material and positions the guardrail positioning groove 104. Each guardrail vertical bar 102 has several guardrail positioning grooves 104 fixed to its side. These grooves are also made of alloy material and position the guardrail horizontal bars 103. Each guardrail horizontal bar 103 fits tightly against its external guardrail positioning groove 104. A solenoid valve 304 is fixed to the top of the connecting plate 3. A mud pump 303 is fixed to the top of the solenoid valve 304. The mud pump 303 and the solenoid valve 304 work together to transport mud into the cavity formed by the protective cylinder 4 and the inner protective cylinder 403, thereby transporting the mud to the mud outlet 406 and then discharging it through the protective pipe 402. This transports the mud between the protective cylinder 4 and the foundation 1, ensuring the stability of the borehole and preventing borehole collapse. A mud delivery pipe 307 made of flexible material is fixed to the top of the mud pump 303. A controller 301 is also fixed to the top of the connecting plate 3. The controller 301 is used to control the entire device. A battery 302 is fixed to the front end of the controller 301, providing the necessary power for the entire device. A positioning ring 306, made of alloy material, is fixed to the bottom of the battery 302. The positioning ring 306 is used to position the uppermost inner protective cylinder 403, and the positioning ring 306 fits tightly against the uppermost inner protective cylinder 403. The uppermost protective cylinder 4 has several mud discharge holes 406 for easy discharge of mud. A mud-blocking ring 405, made of alloy material, is fixedly connected to the lowermost protective cylinder 4 at the top of the protective tube 402. The mud-blocking ring 405 prevents mud and sand from entering the interior of the protective cylinder 4. The uppermost protective cylinder 4 is connected to the uppermost inner protective cylinder 4 by the uppermost inner protective cylinder 4. The connecting flange 404 at the end is fixedly connected to the top connecting plate 3. Each protective cylinder 4 and its inner protective cylinder 403 are fixedly connected by several connecting rods 407. The connecting rods 407 are made of alloy material and can ensure the stability of the protective cylinder 4 and the inner protective cylinder 403. Each electric push rod 305 has an electric push rod support plate 308 fixed at its bottom. The electric push rod support plate 308 is made of rubber material and can ensure the stability of the electric push rod 305. The bottom of each electric push rod 305 is fastened to the concrete slab 105 by bolts. Each bottom vibration damping plate 205 is fastened to the concrete slab 105 by bolts.Each of the bottom damping plates 205 has several damping rods 203 fixed to its top. The damping rods 203 are made of alloy material and are used to position the damping springs 204. Each damping rod 203 has an external damping spring 204. The damping springs 204 are elastic and are damping springs. These springs dampen the vibration of the top support plate 2, thereby reducing vibration for the rotary drilling rig and preventing damage to the subway protection zone structure from drilling vibrations. Each damping rod 203 is slidably connected to the top damping plate 202 on its top. Each top damping plate 202 is fixedly connected to the top support plate 2 on its top through a connecting frame 201, which is also made of alloy material and is used to support the top support plate 2. When using this device, the worker first locates the required drilling position, and then pours the concrete slab 105 on top of the foundation 1 according to the pile foundation dimensions. At this time, the worker secures the bottom vibration damping plate 205 to the top of the concrete slab 105 with bolts. The bottom of the bottom vibration damping plate 205 is tightly fitted with a vibration damping grid 206, and the bottom of the vibration damping grid 206 is tightly fitted with a support plate 207. Next, the worker secures the electric push rod 305 to the top of the concrete slab 105 with bolts. Then, the worker installs several guardrail support blocks 101 on the top of the foundation 1 and inserts the guardrail crossbar 103 into each guardrail positioning groove 104 to achieve the protective purpose. Further... The operator fixes the top connecting plate 3 to the connecting flange 404. At this time, the controller 301 controls the electric push rod 305 to retract, thereby driving the top connecting plate 3 to descend, thus driving the protective cylinder 4 to insert into the foundation 1. Further, the operator disassembles the top connecting plate 3 and installs a second protective cylinder 4 on the top of the lower protective cylinder 4 through the connecting flange 404, and fixes the connecting flange 404 on the top of the second protective cylinder 4 to the top connecting plate 3. The above operation is repeated until the protective cylinder 4 reaches the required depth. The size of each protective cylinder 4 is fixed, so it can be adjusted according to the extension length of the electric push rod 305 and the length of several protective cylinders 4. The summation yields the depth of the cutter head 401. At this point, the cutter head 401 facilitates the insertion of the protective casing 4 into the foundation 1. The operator then inserts the mud delivery pipe 307 into the mud pit. Furthermore, the controller 301 controls the mud delivery pump 303 and the solenoid valve 304 to work together, thereby delivering mud to the cavity formed by the protective casing 4 and the inner casing 403, and then to the mud outlet 406. The mud is then ejected through the gap between the protective pipe 402 and the mud-blocking ring 405, filling the gap between the protective casing 4 and the foundation 1, thus preventing the inner wall of the foundation 1 from collapsing and ensuring stability during subsequent drilling. At this time, due to the mud-blocking ring 405 and the protective pipe 4... The structure of 02 prevents the mud outlet 406 from becoming clogged. At this point, the operator moves the rotary drilling rig to the top of the foundation 1, and then to the top of the top support plate 2, to begin rotary drilling of the pile foundation inside the inner casing 403. Initial vibration reduction is achieved through the vibration damping rod 203 and the vibration damping spring 204. Since the vibration damping spring 204 is a damping spring, the vibration reduction effect is ensured. Further vibration is transmitted to the bottom vibration damping plate 205, then to the vibration damping grid 206, and finally to the support plate 207. The honeycomb structure of the vibration damping grid 206 provides further vibration reduction, and the material of the support plate 207 provides even more vibration reduction, thus completing multiple vibration reduction operations.This prevents the vibration of the rotary drilling rig from being directly transmitted to the foundation 1, thus preventing the foundation 1 from collapsing, and also prevents vibration from affecting other buildings in the subway area, thereby protecting the remaining buildings.

[0019] The working process of this utility model is as follows: When using this device, the worker first locates the required drilling position, and then pours the concrete slab 105 on top of the foundation 1 according to the pile foundation size. At this time, the worker fastens the bottom vibration damping plate 205 on top of the concrete slab 105 with bolts. At this time, the bottom vibration damping plate 205 is tightly attached to the bottom of the bottom vibration damping plate 205, and the bottom of the vibration damping grid 206 is tightly attached to the bottom of the support plate 207. Further, the worker fastens the electric push rod 305 to the top of the concrete slab 105 with bolts. At this time, the worker installs several guardrail support blocks 101 on top of the foundation 1, and inserts the guardrail crossbar 103 into each guardrail positioning groove 104, thereby achieving the effect of preventing To further protect the object, the worker fixes the top connecting plate 3 to the connecting flange 404. At this time, the controller 301 controls the electric push rod 305 to retract, thereby driving the top connecting plate 3 to descend, thereby driving the protective cylinder 4 to insert into the foundation 1. Then, the worker disassembles the top connecting plate 3 and installs a second protective cylinder 4 on the top of the lower protective cylinder 4 through the connecting flange 404, fixing the connecting flange 404 on the top of the second protective cylinder 4 to the top connecting plate 3. This operation is repeated until the protective cylinder 4 reaches the required depth. The size of each protective cylinder 4 is fixed, thus allowing adjustment based on the extension length of the electric push rod 305 and the number of protective cylinders. The total length of the casing 4 is used to obtain the depth of the cutter head 401. At this point, the cutter head 401 facilitates the insertion of the casing 4 into the foundation 1. The worker then inserts the mud delivery pipe 307 into the mud pit. Furthermore, the controller 301 controls the mud delivery pump 303 and the solenoid valve 304 to work together, thereby delivering mud to the cavity formed by the casing 4 and the inner casing 403, and then to the mud outlet 406. The mud is then ejected through the gap between the protective pipe 402 and the mud-blocking ring 405, filling the gap between the casing 4 and the foundation 1, thus preventing the inner wall of the foundation 1 from collapsing and ensuring stability during subsequent drilling. At this time, due to the mud-blocking ring 405 and the mud-blocking ring 405... The structure of the protective casing 402 prevents the mud outlet 406 from becoming blocked. At this point, the operator moves the rotary drilling rig to the top of the foundation 1, and then to the top of the top support plate 2, to begin rotary drilling of the pile foundation inside the inner casing 403. Initial vibration reduction is achieved through the vibration damping rod 203 and the vibration damping spring 204. Since the vibration damping spring 204 is a damping spring, the vibration reduction effect is ensured. Further vibration is transmitted to the bottom vibration damping plate 205, then to the vibration damping grid 206, and finally to the support plate 207. The honeycomb structure of the vibration damping grid 206 provides further vibration reduction, and the material of the support plate 207 provides even more vibration reduction, thus completing multiple vibration reduction operations.This prevents the vibration of the rotary drilling rig from being directly transmitted to the foundation 1, thus preventing the foundation 1 from collapsing, and also prevents vibration from affecting other buildings in the subway area, thereby protecting the remaining buildings.

[0020] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0021] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A protective device for the construction of municipal bridge pile foundations in a subway protection zone, characterized in that: The system includes a foundation (1), with several guardrail crossbars (103) on top of the foundation (1). A concrete slab (105) is poured on top of the foundation (1). Several support plates (207) are provided on top of the concrete slab (105). A vibration damping grid (206) is tightly attached to the top of each support plate (207). A bottom vibration damping plate (205) is tightly attached to the top of each vibration damping grid (206). A top vibration damping plate (202) is provided on top of each bottom vibration damping plate (205). A top support plate (2) is provided. A drilling area (106) is provided inside the foundation (1). Several protective cylinders (4) are provided outside the drilling area (106). The upper and lower protective cylinders (4) are fixedly connected by a connecting flange (404). A cutting head (401) is fixed at the bottom of the lowermost protective cylinder (4). A protective pipe (402) is fixed outside the lowermost protective cylinder (4). A top connecting plate (3) is provided at the top of the uppermost protective cylinder (4). Several electric push rods (305) are fixed at the bottom of the top connecting plate (3).

2. The protective device for municipal bridge pile foundation construction in a subway protection zone according to claim 1, characterized in that: The foundation (1) is fastened to the top with several guardrail support blocks (101) by bolts. Each guardrail support block (101) is fixed with a guardrail vertical bar (102) at the top. Each guardrail vertical bar (102) is fixed with several guardrail positioning grooves (104) on the side. Each guardrail horizontal bar (103) is tightly fitted with the guardrail positioning groove (104) on its outside.

3. The protective device for municipal bridge pile foundation construction in a subway protection zone according to claim 2, characterized in that: A solenoid valve (304) is fixed to the top of the top connecting plate (3), a mud conveying pump (303) is fixed to the top of the solenoid valve (304), a mud conveying pipe (307) is fixed to the top of the mud conveying pump (303), a controller (301) is also fixed to the top of the top connecting plate (3), a battery (302) is fixed to the front end of the controller (301), a positioning ring (306) is fixed to the bottom of the battery (302), and the positioning ring (306) is tightly fitted to its uppermost inner sleeve (403).

4. A protective device for the construction of municipal bridge pile foundations in a subway protection zone according to claim 3, characterized in that: The first protective cylinder (4) is provided with several mud outlet holes (406). The top of the protective pipe (402) is provided with a mud-blocking ring (405) which is fixedly connected to the bottom protective cylinder (4). The top protective cylinder (4) is fixedly connected to the top connecting plate (3) through the top connecting flange (404). Each protective cylinder (4) is fixedly connected to the inner protective cylinder (403) inside it through several connecting rods (407).

5. A protective device for the construction of municipal bridge pile foundations in a subway protection zone according to claim 4, characterized in that: Each of the electric push rods (305) has an electric push rod support plate (308) fixed at its bottom. The bottom of each electric push rod (305) is fastened to the concrete slab (105) by bolts. Each bottom damping plate (205) is fastened to the concrete slab (105) by bolts. Each bottom damping plate (205) has several damping rods (203) fixed at its top. Each damping rod (203) is provided with a damping spring (204) on its outside. Each damping rod (203) is slidably connected to the top damping plate (202) at its top. Each top damping plate (202) is fixedly connected to the top support plate (2) at its top by a connecting frame (201).

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