Slurry leakage prevention structure of cast-in-situ bored pile

Abstract

The utility model relates to the field of constructional engineering facilities, in particular to a grout leakage prevention structure of a cast-in-situ bored pile, and solves the technical problems that when the cast-in-situ bored pile is used, a pile casing can generate a large amount of vibration, so that the pile casing sinks, and grout leakage is generated; according to the technical scheme, the grout leakage prevention structure of the cast-in-situ bored pile comprises a main body structure, a fixing assembly, a telescopic assembly, a waterproof assembly and a detection assembly; the main body structure is fixed in a drill hole of a cast-in-situ bored pile through the main body structure which is sleeved inside and outside in cooperation with the fixing assembly, the telescopic assembly further reinforces the main body structure by inserting a round rod into the wall of the drill hole, and the waterproof assembly has excellent waterproof performance and weather resistance and can effectively resist seepage of slurry; and the detection assembly is used for detecting whether the drill bit rotates too fast to cause vibration sinking of the main body structure or not, and the problems that when the cast-in-situ bored pile is used, a pile casing can generate a large amount of vibration, the pile casing sinks, and slurry leakage is generated are solved.

Description

Technical Field

[0001] The utility model relates to the field of construction engineering facilities, in particular to a grout leakage prevention structure for bored cast-in-place piles. Background Art

[0002] Bored cast-in-place piles refer to piles made by forming pile holes in the foundation soil at the construction site through mechanical drilling, steel pipe squeezing or manual excavation, placing steel cages inside and pouring concrete. Bored cast-in-place piles have been widely used in the foundations of structural engineering such as roads, railways and bridges due to their mature construction technology, high bearing capacity and wide range of applications.

[0003] However, existing bored piles may leak during construction. The drilling mud is composed of water, clay (bentonite) and additives, which has the functions of suspending drill cuttings, cooling the drill bit and lubricating the drill tool. However, the rotation of the drill bit will cause the casing to vibrate and sink, causing the mud to flow out of the casing, affecting the quality and stability of the hole, and posing a potential hidden danger to construction safety.

[0004] Therefore, in view of the situation that leakage may occur during the construction of the above-mentioned bored piles, a leakage-proof structure for the bored piles can be designed. Through bolts, nuts and a retractable and adjustable structure, the problem of a large amount of vibration in the casing, which causes the casing to sink and cause leakage, is solved when the bored piles are operated. Utility Model Content

[0005] In order to overcome the problem that bored cast-in-place piles will generate a lot of vibration during use, causing the casing to sink and cause leakage.

[0006] The technical solution of the utility model is: a slurry leakage prevention structure of bored cast-in-place piles, comprising a main structure, a fixed component, a telescopic component, a waterproof component, and a detection component; the main structure is two cylindrical structures connected inside and outside, the fixed component is fixed to the upper end of the outer cylinder of the main structure, the telescopic component is fixed around the outer side of the outer cylinder of the main structure, the waterproof component is installed on the inner side of the outer cylinder of the main structure, and the detection component is inlaid and fixed between two adjacent groups of telescopic components.

[0007] Preferably, the two cylindrical structures are made of high-quality materials to ensure their strength and durability. The fixing component is fixed to the upper end of the outer cylinder of the main structure to firmly fix the main structure to the ground, so that the entire structure can remain stable and will not shake or move easily. The waterproof component is installed on the inner side of the outer cylinder of the main structure to prevent mud from flowing out and achieve the effect of preventing leakage.

[0008] Preferably, the main structure includes an inner casing, an outer casing, a block and a slot; the inner casing is cylindrical, and a long strip of blocks is fixed on its surface; the outer casing is sleeved on the outside of the inner casing, and the inner wall of the outer casing is provided with slots that match the long strip of blocks. The design of these slots allows the blocks on the inner casing to be firmly fixed on the outer casing, further enhancing the structural stability of the entire main body. In addition, the design of the blocks and slots also provides a convenient installation and disassembly method, so that the inner casing and the outer casing can be easily assembled and separated, which provides convenience for the transportation of the equipment and subsequent maintenance and repair.

[0009] Preferably, the fixing assembly includes screw holes, connecting plates, bolts, and nuts; the screw holes are opened on the upper surface of the connecting plates, and the bolts pass through the screw holes to be connected with the nuts. The design of the fixing assembly comprehensively considers the requirements of stability, durability, and easy installation and disassembly. By using components such as screw holes, connecting plates, bolts and nuts, the main structure can be effectively fixed and supported, ensuring its stability and reliability during use.

[0010] Preferably, the fixing assembly also includes a circular hole, a rivet, and a washer; the circular hole is opened on one side of the screw hole, and the rivet passes through the circular hole and the washer to be fixed to the ground. This fixing method combines the functions of multiple components to ensure that the connecting plate is stably supported and fixed in both horizontal and vertical directions. At the same time, the design of the circular hole, rivet and washer also takes into account the factors of easy installation and disassembly, so that adjustment or maintenance can be conveniently carried out when necessary.

[0011] Preferably, the telescopic assembly includes a hexagonal hole, a cylinder, and a round rod: the hexagonal hole is opened on the outside of the outer casing, the cylinder is fixed in the hexagonal hole, the round rod is fixed on the cylinder power element, the cylinder generates thrust by compressed air, and pushes the round rod to perform telescopic movement. The round rod is usually made of solid material and has sufficient strength and rigidity, which further strengthens the main structure.

[0012] Preferably, the waterproof component includes a waterproof layer, a waterproof coating, and a sealing strip; the waterproof layer is arranged on the inner wall of the outer casing, the waterproof coating contains organic polymer materials and resins, the waterproof coating is coated on the surface of the waterproof layer, the sealing strip is fixed to the outer casing mouth, the waterproof coating contains organic polymer materials, resins and other ingredients, these materials have excellent waterproof performance and weather resistance, can effectively resist the seepage of mud, the waterproof coating is coated on the waterproof layer to form a tight protective layer, the sealing strip is arranged at the outer casing mouth, the sealing strip is elastic, can fit the shape of the outer casing tightly, and prevent mud or other liquids from leaking from the mouth, and at the same time, the sealing strip also has certain anti-aging properties, and can maintain its sealing effect for a long time.

[0013] Preferably, the detection component includes sensors and alarms; there are two groups of sensors, which are respectively installed in the hole grooves on the inner side of the outer casing and the outer side of the inner casing. The alarm is connected to the sensors through the outer casing. The two groups of sensors fit together. Once the drill bit rotates too fast and causes the inner casing to sink, the two groups of sensors will separate. The alarm control circuit is connected to the sensors, which have power terminals. When the sensors fit together, the control circuit is in a disconnected state, the sensors are separated, and the control circuit is closed, causing the alarm to start sounding, allowing the staff to make adjustments.

[0014] Beneficial effects of the utility model:

[0015] 1. The main structure is fixed in the borehole of the bored pile through the main structure with inner and outer fittings and the fixing components. The telescopic component further strengthens the main structure by inserting the round rod into the borehole wall. The waterproof component has excellent waterproof performance and weather resistance, and can effectively resist the seepage of mud. The detection component is used to detect whether the drill bit rotates too fast to cause the main structure to vibrate and sink;

[0016] 2. The telescopic assembly is fixed around the outer casing of the main structure. It uses the cylinder to push the round rod fixed on the power element into the borehole wall, thereby achieving a further reinforcement effect and preventing the main structure from sinking.

[0017] 3. The waterproof component is arranged on the inner side of the outer casing. When the inner casing sinks due to vibration, the mud can be kept in the outer casing and will not flow out into the borehole, thereby preventing the occurrence of leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The three-dimensional structure diagram of the anti-leakage slurry structure of the bored cast-in-place pile of the utility model is shown;

[0019] Figure 2 The three-dimensional structure schematic diagram of the main structure of the anti-leakage slurry structure of the bored cast-in-place pile of the utility model is shown;

[0020] Figure 3 The three-dimensional structure diagram of the anti-leakage slurry structure fixing component of the bored pile of the utility model is shown;

[0021] Figure 4 The three-dimensional structure schematic diagram of the telescopic component of the anti-leakage slurry structure of the bored pile of the utility model is shown;

[0022] Figure 5 The three-dimensional structure schematic diagram of the waterproof component of the anti-leakage slurry structure of the bored pile of the utility model is shown;

[0023] Figure 6 What is shown is a three-dimensional structural schematic diagram of the anti-leakage slurry structure detection component of the bored cast-in-place pile of the utility model.

[0024] Explanation of the reference numerals: 1. Main structure; 2. Fixing assembly; 3. Telescopic assembly; 4. Waterproof assembly; 5. Detection assembly; 101. Inner casing; 102. Outer casing; 103. Block; 104. Slot; 201. Screw hole; 202. Connecting plate; 203. Bolt; 204. Nut; 205. Round hole; 206. Rivet; 207. Washer; 301. Hexagonal hole; 302. Cylinder; 303. Round rod; 401. Waterproof layer; 402. Waterproof coating; 403. Sealing strip; 501. Sensor; 502. Alarm. Implementation

[0025] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0026] See also Figure 1-2 The utility model provides an embodiment: a grout leakage prevention structure for bored piles, comprising a main structure 1, a fixing component 2, a telescopic component 3, a waterproof component 4, and a detection component 5; the main structure 1 is a cylindrical structure with two inner and outer sleeves, the fixing component 2 is fixed to the upper end of the outer cylinder of the main structure 1, the telescopic component 3 is fixed around the outer side of the outer cylinder of the main structure 1, the waterproof component 4 is installed on the inner side of the outer cylinder of the main structure 1, and the detection component 5 is inlaid and fixed between two adjacent groups of telescopic components 3, the main structure 1 comprises an inner casing 101, an outer casing 102, a block 103, and a slot 104; the inner casing 101 is cylindrical, and a long strip of the block 103 is fixed on its surface, the outer casing 102 is sleeved on the outer side of the inner casing 101, and the inner wall of the outer casing 102 is provided with a slot adapted to the long strip of the block 103 104, these two cylindrical structures are made of high-quality materials to ensure their strength and durability. The fixing component 2 is fixed to the upper end of the outer cylinder of the main structure 1, and is used to firmly fix the main structure 1 to the ground, so that the entire structure can remain stable and will not shake or move easily. The waterproof component 4 is installed on the inner side of the outer cylinder of the main structure 1 to prevent mud from flowing out and achieve the effect of preventing leakage. The design of these slots 104 allows the blocks 103 on the inner casing 101 to be firmly fixed on the outer casing 102, further enhancing the structural stability of the entire main body. In addition, the design of the blocks 103 and the slots 104 also provides a convenient installation and disassembly method, so that the inner casing 101 and the outer casing 102 can be easily assembled and separated, which provides convenience for the transportation of the equipment and subsequent maintenance and repair.

[0027] See also Figure 3-4In this embodiment, the fixing component 2 includes a screw hole 201, a connecting plate 202, a bolt 203, and a nut 204; the screw hole 201 is opened on the upper surface of the connecting plate 202, and the bolt 203 passes through the screw hole 201 to connect with the nut 204. The fixing component 2 also includes a round hole 205, a rivet 206, and a washer 207; the round hole 205 is opened on one side of the screw hole 201, and the rivet 206 passes through the round hole 205 and the washer 207 to be fixed to the ground. The telescopic component 3 includes a hexagonal hole 301, a cylinder 302, and a round rod 303: the hexagonal hole 301 is opened on the outside of the outer casing 102, the cylinder 302 is fixed in the hexagonal hole 301, and the round rod 303 is fixed on the power element of the cylinder 302. The design of the fixing component 2 comprehensively considers stability, durability and ease of installation. In order to meet the requirements of installation and disassembly, by using components such as screw holes 201, connecting plates 202, bolts 203 and nuts 204, the main structure 1 can be effectively fixed and supported to ensure its stability and reliability during use. This fixing method combines the functions of multiple components to ensure that the connecting plate 202 is stably supported and fixed in both horizontal and vertical directions. At the same time, the design of the round holes 205, rivets 206 and washers 207 also takes into account the factors of easy installation and disassembly, so that adjustment or maintenance can be conveniently performed when necessary. The cylinder 302 generates thrust by compressed air to push the round rod 303 to perform telescopic movement. The round rod 303 is usually made of strong material and has sufficient strength and rigidity, which further strengthens the main structure 1.

[0028] See also Figure 5-6In this embodiment, the waterproof component 4 includes a waterproof layer 401, a waterproof coating 402, and a sealing strip 403; the waterproof layer 401 is arranged on the inner wall of the outer casing 102, the waterproof coating 402 includes organic polymer materials, resin, the waterproof coating 402 is coated on the surface of the waterproof layer 401, and the sealing strip 403 is fixed to the tube mouth of the outer casing 102. The detection component 5 includes a sensor 501 and an alarm 502; there are two groups of sensors 501, and the sensors 501 are respectively installed in the holes and grooves on the inner side of the outer casing 102 and the outer side of the inner casing 101. The alarm 502 is connected to the sensor 501 through the outer casing 102. The waterproof coating 402 includes organic polymer materials, resins and other components. These materials have excellent waterproof performance and weather resistance, and can effectively resist the seepage of mud. The waterproof coating 402 It is coated on the waterproof layer 401 to form a tight protective layer. The sealing strip 403 is set at the mouth of the outer casing 102. The sealing strip 403 is elastic and can fit the shape of the outer casing 102 tightly to prevent mud or other liquids from leaking from the mouth of the tube. At the same time, the sealing strip 403 also has a certain anti-aging performance and can maintain its sealing effect for a long time. The two sets of sensors 501 fit each other. Once the drill bit rotates too fast and causes the inner casing 101 to sink, the two sets of sensors 501 will be separated. The alarm 502 control circuit is connected to the sensor 501. The sensor 501 has a power terminal. When the sensor 501 fits together, the control circuit is in a disconnected state. The sensor 501 is separated and the control circuit is closed, causing the alarm 502 to start alarming, allowing the staff to make adjustments.

[0029] When working, first ensure that the drilling position of the bored pile is ready, then put the main structure 1 with inner and outer shells into the borehole, then the telescopic component 3 starts to work, and the round rod 303 is pushed out by the cylinder 302, inserted into the borehole wall for fixing, and then the fixing component 2 is first fixed to the outer casing 102 by the bolt 203 and the nut 204, and then the rivet 206 with the washer 207 is directly driven into the ground to achieve double fixation;

[0030] As the operation proceeds, the sensor 501 of the detection component 5 can detect the position of the inner casing 101 of the main structure 1 in real time, thereby preventing leakage caused by the sinking of the inner casing 101. The waterproof coating 402 in the waterproof component 4 contains organic polymer materials, resins and other components. These materials have excellent waterproof properties and weather resistance, and can effectively resist the seepage of mud. The waterproof coating 402 is coated on the waterproof layer 401 to form a tight protective layer. The detection component 5 is used to detect whether the drill bit rotates too fast and causes the main structure 1 to vibrate and sink, thereby avoiding leakage.

[0031] Through the above steps, the main structure 1 is fixed in the borehole of the bored pile by the inner and outer fitting main structure 1 and the fixing component 2. The telescopic component 3 further reinforces the main structure 1 by inserting the round rod 303 into the borehole wall. The waterproof component 4 has excellent waterproof performance and weather resistance, and can effectively prevent the seepage of mud. The detection component 5 is used to detect whether the drill bit rotates too fast to cause the main structure 1 to vibrate and sink, which solves the problem that when the bored pile is in use, the casing will generate a lot of vibrations, causing the casing to sink and leak mud.

[0032] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. A grout leakage prevention structure for bored piles, comprising: a main structure (1); characterized in that: It also includes a fixing component (2), a telescopic component (3), a waterproof component (4), and a detection component (5); the main structure (1) is two cylindrical structures connected inside and outside, the fixing component (2) is fixed to the upper end of the outer cylinder of the main structure (1), the telescopic component (3) is fixed around the outer side of the outer cylinder of the main structure (1), the waterproof component (4) is installed on the inner side of the outer cylinder of the main structure (1), and the detection component (5) is embedded and fixed between two adjacent groups of telescopic components (3).

2. The anti-leakage slurry structure of a bored pile according to claim 1, characterized in that: The main structure (1) comprises an inner protective tube (101), an outer protective tube (102), a clamping block (103), and a clamping groove (104); the inner protective tube (101) is cylindrical, and a long strip-shaped clamping block (103) is fixed on its surface; the outer protective tube (102) is sleeved on the outside of the inner protective tube (101), and a clamping groove (104) matching the long strip-shaped clamping block (103) is formed on the inner wall of the outer protective tube.

3. The anti-leakage slurry structure of a bored pile according to claim 1, characterized in that: The fixing assembly (2) comprises a screw hole (201), a connecting plate (202), a bolt (203), and a nut (204); the screw hole (201) is formed on the upper surface of the connecting plate (202), and the bolt (203) passes through the screw hole (201) and is connected to the nut (204).

4. The anti-leakage slurry structure of a bored pile according to claim 3, characterized in that: The fixing assembly (2) further comprises a circular hole (205), a rivet (206), and a washer (207); the circular hole (205) is opened on one side of the screw hole (201), and the rivet (206) passes through the circular hole (205) and the washer (207) to be fixed to the ground.

5. The anti-leakage slurry structure of a bored pile according to claim 2, characterized in that The telescopic assembly (3) comprises a hexagonal hole (301), a cylinder (302), and a round rod (303): the hexagonal hole (301) is opened on the outside of the outer casing (102), the cylinder (302) is fixed in the hexagonal hole (301), and the round rod (303) is fixed on a power element of the cylinder (302).

6. The anti-leakage slurry structure of a bored pile according to claim 2, characterized in that: The waterproof component (4) comprises a waterproof layer (401), a waterproof coating (402), and a sealing strip (403); the waterproof layer (401) is arranged on the inner wall of the outer casing (102); the waterproof coating (402) comprises an organic polymer material and a resin; the waterproof coating (402) is coated on the surface of the waterproof layer (401); and the sealing strip (403) is fixed to the tube mouth of the outer casing (102).

7. The anti-leakage slurry structure of a bored pile according to claim 2, characterized in that: The detection assembly (5) comprises a sensor (501) and an alarm (502); there are two sets of sensors (501), the sensors (501) are respectively installed in the holes on the inner side of the outer casing (102) and the outer side of the inner casing (101), and the alarm (502) is connected to the sensors (501) via the outer casing (102).

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