Pile cap pouring and maintenance method for high-pile beam-slab wharf

Abstract

The present invention relates to the field of building construction technology, and discloses a pile cap pouring and maintenance method for a high-pile beam-slab wharf, comprising rotary excavation of a pile cap pit, rotary cutting of a pile head, installation of a positioning template, concrete pouring, and covering and maintenance. The present invention is characterized in that a rotating shaft is arranged to cooperate with a vibration mechanism, and after each concrete pouring, an outer shell is placed in the pile cap pit containing concrete, an external motor is turned on, and the rotating shaft drives a connecting plate on its surface to rotate at high speed under the drive of a soft shaft, and the outer shell, the connecting shell, and the rotating shaft all generate vibrations and transmit the vibrations. During the rotation process, the connecting plate repeatedly contacts and separates from a spring sheet, and when the spring sheet separates from the connecting plate, the spring sheet recovers and swings in the direction of restoring its original state under the action of its own elastic force, so that the spring sheet repeatedly swings, thereby increasing the vibration intensity of the outer shell, and utilizing the vibration generated by the spring sheet to increase the number of vibration transmission directions of the outer shell to expand the vibration range.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, in particular to a pile cap pouring and curing method for a high-pile beam-slab type wharf. Background Art

[0002] The pile-beam-slab wharf, also known as the beam-slab high-pile wharf, is based on piles and consists of deck panels, longitudinal beams, transverse beams, and mooring components. During the construction of the top beam and slab of the high-pile-beam-slab wharf, the pile cap concrete pouring construction is required;

[0003] The pile cap preparation process in the prior art is usually pile cap pit → rotary cutting of pile head → installation of positioning template → concrete pouring → covering and curing. When pouring the concrete of the pile cap, bubbles in the concrete must be eliminated. Usually, a vibrator is used to vibrate the concrete to make the concrete densely combined, eliminate the honeycombed surface of the concrete, improve its strength, and ensure the quality of the concrete.

[0004] However, the vibrator in the prior art is generally composed of a motor, a rod head and a hose, etc., with an eccentric vibration system installed inside. Driven by the motor, it rotates at high speed, generating unbalanced centrifugal force, which drives the rod head to perform high-frequency micro-circular vibration. Since the mechanical wave form generated by the vibrator is fixed, the direction of transmitting stable energy is relatively single, which limits the range of vibration wave transmission, resulting in limited vibration amplitude, greatly reducing the vibration efficiency. Summary of the Invention

[0005] The purpose of the present invention is to solve the problem that the mechanical wave form generated by the vibrator in the prior art is fixed, the direction of transmitting stable energy is relatively single, and the range of vibration wave transmission is limited, so that the vibration amplitude is limited, which greatly reduces the vibration efficiency and affects the pile cap pouring and curing. A pile cap pouring and curing method for a high-pile beam-slab wharf is now proposed.

[0006] In order to achieve the above object, the present invention adopts the following technical solution: a method for pouring and curing a pile cap of a high-pile beam-slab wharf, comprising the following steps:

[0007] Step 1: First, use the pile cap pit rotary excavation device to rotary excavate the pile cap pit, and then use the pile head to rotary cut the excess pile head inside the pile cap pit;

[0008] Step 2: Concrete is poured inside the pile cap pit. During this process, the center point of the screw pile is first found and marked using a crosshair. Then, the pile cap positioning template is installed at the upper end of the excavated pile cap pit.

[0009] Step 3: Use a laser line projector and a level to adjust the elevation of the pile cap positioning template, use a hammer ball to adjust the positioning template into place, and then fix the pile cap positioning template with aluminum alloy plates and wooden wedges;

[0010] Step 4: Pour concrete into the pile cap pit until it reaches the pile cap positioning template, vibrate the poured concrete with a vibrating device to make it compact, and scrape the surface flat;

[0011] Step 5. Finally, cover the pile cap with geotextile and sprinkle water for maintenance. After completion, remove the positioning template.

[0012] Furthermore, the vibrating device for vibrating densely poured concrete includes an outer shell, a flexible shaft is provided at one end of the outer shell, and a rotating shaft is provided inside the outer shell along its central axis, the flexible shaft is connected to the rotating shaft, and the flexible shaft drives the rotating shaft to rotate, and a plurality of groups of connecting shells are symmetrically fixedly connected to the outer surface of the outer shell, and the connecting shells correspond to each other, each group of the connecting shells is communicated with the outer shell, and a vibration mechanism is provided inside the connecting shell.

[0013] Furthermore, the vibration mechanism includes a guide column, a connecting rod, a fixed plate and a spring sheet; the inner surface of the connecting shell is fixedly connected to the guide column at one end away from the outer shell, and one end of the guide column is fixedly connected to the outer shell, and the other end is movably connected to the connecting rod, one end of the connecting rod passes through the interior of the outer shell and is fixedly connected to the fixed plate, and the outer surface of the fixed plate is arc-shaped, and several groups of spring sheets are fixedly connected to the outer surface of the fixing plate at equal distances near the middle of the end away from the connecting rod.

[0014] Furthermore, the outer surface of the rotating shaft is fixedly connected with several groups of connecting plates at equal distances, a movable groove is provided at the connection between the outer surface of the connecting rod and the guide column, and a spring 1 is provided inside the movable groove, and one end of the spring 1 is fixedly connected to the guide column, and the other end is fixedly connected to the movable groove.

[0015] Furthermore, the cross-sectional area of ​​the opening of the movable groove is larger than the cross-sectional area of ​​the guide column, and sliding grooves are provided on both sides of the outer surface of the connecting rod close to one end of the outer shell, and the interior of the sliding groove is slidably connected to a slider, and the cross-section of the slider is T-shaped, and one end of the slider passes through the outside of the sliding groove and is fixedly connected to the movable column.

[0016] Furthermore, a connecting tube is fixedly connected to the position of the inner surface of the connecting shell corresponding to the movable column, and one end of the movable column passes through the interior of the connecting tube and is movably connected to it. A spring 2 is provided inside the connecting tube, and one end of the spring 2 is fixedly connected to the connecting tube, and the other end is fixedly connected to the movable column. Several groups of mounting plates are fixedly connected at equal distances on both sides of the outer surface of the connecting rod, and several groups of spring sheets 2 are fixedly connected to the positions of the fixed plates on both sides of the inner surface of the connecting shell.

[0017] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0018] In the present invention, by arranging a rotating shaft to cooperate with a vibration mechanism, after each pouring of concrete, the outer shell is placed in the pile cap pit with concrete, and the external motor is turned on. The rotating shaft drives the connecting plate on its surface to rotate at high speed under the drive of the soft shaft, and the outer shell, the connecting shell and the rotating shaft all generate vibration and transmit the vibration. During the rotation process, the connecting plate repeatedly contacts and separates with the spring piece 1. When the spring piece 1 separates from the connecting plate, the spring piece 1 recovers and swings in the direction of restoring its original state under the action of its own elastic force. Therefore, the spring piece 1 repeatedly swings, thereby increasing the vibration intensity of the outer shell, and utilizing the vibration generated by the spring piece 1 to increase the number of directions in which the vibration of the outer shell is transmitted, thereby expanding the vibration range.

[0019] In the present invention, by arranging the spring piece 2 to cooperate with the spring piece 1, the fixed plate is squeezed during the rotation of the connecting plate, and the connecting rod moves repeatedly along the guide column under the action of the push of the fixed plate and the elasticity of the spring 1. In the process of its movement, the mounting plate repeatedly contacts and separates from the spring piece 2, and squeezes the spring piece 2, causing the spring piece 2 to bend to one side. When the spring piece 2 is separated from the connecting plate, the spring piece 1 recovers and swings in the direction of restoring its original shape under the action of its own elastic force. Therefore, the spring piece 2 swings repeatedly, increasing the vibration intensity of the connecting shell, causing its vibration to propagate in multiple directions, and further improving the vibration effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a combined view of the guide column and the connecting rod of the present invention;

[0022] Figure 3 It is a combined view of the fixing plate and the fixing plate of the present invention;

[0023] Figure 4 For the present invention Figure 3 A magnified view of area A;

[0024] Figure 5 This is a combined view of the fixing plate and the second spring piece of the present invention.

[0025] Figure numerals: 1. outer shell; 2. flexible shaft; 3. rotating shaft; 4. connecting shell; 5. vibration mechanism; 501. guide column; 502. connecting rod; 503. fixed plate; 504. spring sheet 1; 505. connecting plate; 506. movable groove; 507. spring 1; 508. slide groove; 509. slider; 510. movable column; 511. connecting cylinder; 512. spring 2; 513. spring sheet 2; 514. mounting plate. DETAILED DESCRIPTION

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention. Example 1:

[0027] like Figure 1-5 As shown, the pile cap pouring and maintenance method of the high-pile beam-slab wharf proposed by the present invention is implemented based on a vibrating device for vibrating densely poured concrete. The vibrating device includes an outer shell 1, a flexible shaft 2 is provided at one end of the outer shell 1, and a rotating shaft 3 is provided inside the outer shell 1 along its axis. The flexible shaft 2 is connected to the rotating shaft 3, and the flexible shaft 2 drives the rotating shaft 3 to rotate. The outer surface of the outer shell 1 is symmetrically fixed with a plurality of groups of connecting shells 4, and the connecting shells 4 correspond to each other. Each group of connecting shells 4 is communicated with the outer shell 1. The interior of the pile cap pit is poured multiple times and in layers. After each pouring is completed, the outer shell 1 is placed in the pile cap pit with concrete, and the external motor is turned on. The rotating shaft 3 drives the connecting plate 505 on its surface to rotate at high speed under the drive of the flexible shaft 2. The outer shell 1, the connecting shell 4 and the rotating shaft 3 all generate vibration and transmit the vibration to vibrate the concrete. A vibration mechanism 5 is provided inside the connecting shell 4.

[0028] The vibration mechanism 5 includes a guide column 501, a connecting rod 502, a fixed plate 503 and a spring sheet 504; the guide column 501 is fixedly connected to the end of the inner surface of the connecting shell 4 away from the outer shell 1, and one end of the guide column 501 is fixedly connected to the outer shell 1, and the other end is movably connected to the connecting rod 502, one end of the connecting rod 502 passes through the interior of the outer shell 1 and is fixedly connected to the fixed plate 503, and the outer surface of the fixed plate 503 is arc-shaped, and several groups of spring sheets 504 are fixedly connected to the outer surface of the fixing plate 503 at equal distances near the middle of the end away from the connecting rod 502.

[0029] The outer surface of the rotating shaft 3 is fixedly connected with a plurality of connecting plates 505 at equal distances. During the rotation process, the connecting plates 505 repeatedly contact and separate with the spring piece 1 504, and the connecting plates 505 squeeze the spring piece 1 504 during the contact process, causing the spring piece 1 504 to bend to one side. When the spring piece 1 504 separates from the connecting plate 505, the spring piece 1 504 recovers and swings in the direction of restoring its original shape under the action of its own elastic force, and the spring piece 1 504 swings repeatedly, thereby increasing the vibration intensity of the housing 1, and utilizing the vibration generated by the spring piece 1 504 to increase the number of vibration propagation directions of the housing 1. A movable groove 506 is provided at the connection between the outer surface of the connecting rod 502 and the guide column 501, and a spring 1 507 is provided inside the movable groove 506, and one end of the spring 1 507 is fixedly connected to the guide column 501, and the other end is fixedly connected to the movable groove 506;

[0030] During the rotation of the connecting plate 505, it first contacts the outer surface of the fixed plate 503. Since the outer surface of the fixed plate 503 is arc-shaped, the connecting plate 505 pushes the fixed plate 503 to move toward the corresponding connecting shell 4 during the rotation. The connecting rod 502 moves along the guide column 501 and squeezes the spring 1 507. When the connecting plate 505 is separated from the fixed plate 503, the connecting rod 502 gradually returns to its original state under the action of the spring 1 507, which can change the contact position of the connecting plate 505 and the spring sheet 1 504, further enriching the propagation direction of the vibration. Example 2:

[0031] like Figure 2 As shown, the difference between this embodiment and embodiment 1 is that a plurality of groups of mounting plates 514 are fixedly connected at equal distances on both sides of the outer surface of the connecting rod 502, and a plurality of groups of spring leaves 513 are fixedly connected at positions corresponding to the fixing plates 503 on both sides of the inner surface of the connecting shell 4. The connecting rod 502 moves repeatedly along the guide column 501 under the push of the fixing plates 503 and the elasticity of the spring 1 507. During its movement, the mounting plates 514 repeatedly contact and separate from the spring leaves 513, squeezing the spring leaves 513 and causing the spring leaves 513 to bend to one side. When the spring leaves 513 separate from the mounting plates 514, the spring leaves 513 swing back to their original shape under the action of their own elastic force. The spring leaves 513 swing repeatedly, thereby increasing the vibration intensity of the connecting shell 4. The spring leaves 513 cooperate with the spring leaves 504 and the rotating shaft 3 to cause their vibration to propagate in multiple directions. Example 3:

[0032] like Figure 2-5As shown, the difference between this embodiment and embodiment 1 and embodiment 2 is that the cross-sectional area of ​​the opening of the movable groove 506 is larger than the cross-sectional area of ​​the guide column 501. When the fixed plate 503 is squeezed and pushes the connecting rod 502 to move, the connecting rod 502 can swing around the guide column 501. Slide grooves 508 are provided on both sides of the outer surface of the connecting rod 502 near the end of the shell 1, and the interior of the slide groove 508 is slidably connected to a slider 509, and the cross-section of the slider 509 is T-shaped. One end of the slider 509 passes through the outside of the slide groove 508 and is fixedly connected to the movable column 510. When the connecting rod 502 moves along the guide column 501, the slider 509 moves relative to the slide groove 508, so that it can adapt to the dynamic changes of its position while not separating from the connecting rod 502.

[0033] A connecting tube 511 is fixedly connected to the position on the inner surface of the connecting shell 4 corresponding to the movable column 510, and one end of the movable column 510 passes through the interior of the connecting tube 511 and is movably connected thereto. A spring 2 512 is provided inside the connecting tube 511, and one end of the spring 2 512 is fixedly connected to the connecting tube 511, and the other end is fixedly connected to the movable column 510. The movable column 510 moves along the connecting tube 511 and returns to its original state under the action of the spring 2 512. When the connecting rod 502 shakes, it and the connecting rod 502 will collide with the connecting shell 4 and the shell, thereby further enhancing the vibration strength of the outer shell 1 and the connecting shell 4. Example 4:

[0034] The method for pouring and curing the pile cap of a high-pile beam-slab wharf comprises the following steps:

[0035] Step 1: First, use the pile cap pit rotary excavation device to rotary excavate the pile cap pit, and then use the pile head to rotary cut the excess pile head inside the pile cap pit;

[0036] Step 2: Concrete is poured inside the pile cap pit. During this process, the center point of the screw pile is first found and marked using a crosshair. Then, the pile cap positioning template is installed at the upper end of the excavated pile cap pit.

[0037] Step 3: Use a laser line projector and a level to adjust the elevation of the pile cap positioning template, use a hammer ball to adjust the positioning template into place, and then fix the pile cap positioning template with aluminum alloy plates and wooden wedges;

[0038] Step 4: pour concrete in the pile cap pit until the pile cap positioning template is reached, and the interior of the pile cap pit is poured multiple times and in layers. After each pouring is completed, the shell 1 is placed in the pile cap pit with concrete, and the external motor is turned on. The shaft 3 drives the connecting plate 505 on its surface to rotate at high speed under the drive of the soft shaft 2. The shell 1, the connecting shell 4 and the shaft 3 all generate vibrations and transmit the vibrations, and the spring piece 1 504 swings repeatedly to increase the vibration intensity of the shell 1. The vibration generated by the spring piece 1 504 is used to increase the number of vibration propagation directions of the shell 1. At the same time, the spring piece 2 513 swings repeatedly to increase the vibration intensity of the connecting shell 4, and the spring piece 2 513 cooperates with the spring piece 1 504 and the shaft 3 to make the vibration of the device propagate in multiple directions, making the poured concrete more dense, and then the next layer is poured. After the concrete is poured to the pile cap positioning template, the surface is scraped flat.

[0039] Step 5. Finally, cover the pile cap with geotextile and sprinkle water for maintenance. After completion, remove the positioning template.

[0040] The working process and principle of the present invention are as follows:

[0041] 1, and the spring sheet 504 of the outer shell 1 is rotated repeatedly.

[0042] Step 2: During the rotation of the connecting plate 505, it first contacts the outer surface of the fixed plate 503. Since the outer surface of the fixed plate 503 is curved, the connecting plate 505 pushes the fixed plate 503 toward the corresponding connecting shell 4 during the rotation. The connecting rod 502 moves along the guide column 501 and squeezes the spring 1 507. When the connecting plate 505 separates from the fixed plate 503, the connecting rod 502 gradually returns to its original state under the action of the spring 1 507, thereby changing the contact position between the connecting plate 505 and the spring sheet 1 504, further enriching the propagation direction of the vibration.

[0043] Step 3: The connecting rod 502 moves repeatedly along the guide column 501 under the push of the fixing plate 503 and the elasticity of the spring 1 507. During the movement, the mounting plate 514 repeatedly contacts and separates from the spring 2 513, squeezing the spring 2 513 and causing the spring 2 513 to bend to one side. When the spring 2 513 separates from the mounting plate 514, the spring 2 513 recovers and swings in the direction of its original shape under the action of its own elastic force. Therefore, the spring 2 513 repeatedly swings, increasing the vibration intensity of the connecting shell 4. The spring 2 513 cooperates with the spring 1 504 and the rotating shaft 3 to cause the vibration to propagate in multiple directions, thereby improving the vibration effect.

[0044] Step 4. When the fixing plate 503 is squeezed and pushes the connecting rod 502 to move, since the cross-sectional area of ​​the opening of the movable groove 506 is larger than the cross-sectional area of ​​the guide column 501, the connecting rod 502 swings around the guide column 501, and in this process, the movable column 510 moves along the connecting tube 511 and returns to its original state under the action of the spring 2 512. While the connecting rod 502 swings, it and the connecting rod 502 will collide with the connecting shell 4 and the shell, thereby further enhancing the vibration strength of the outer shell 1 and the connecting shell 4.

[0045] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A method for pouring and curing pile caps for high-pile beam-slab wharfs, characterized in that: The following steps are involved: Step 1: First, use the pile cap pit rotary excavation device to rotary excavate the pile cap pit, and then rotary cut the excess pile head inside the pile cap pit; Step 2: Concrete is poured inside the pile cap pit. During this process, the center point of the screw pile is first found and marked using a crosshair. Then, the pile cap positioning template is installed at the upper end of the excavated pile cap pit. Step 3: Use a laser line projector and a level to adjust the elevation of the pile cap positioning template, use a hammer ball to adjust the positioning template into place, and then fix the pile cap positioning template with aluminum alloy plates and wooden wedges; Step 4: Pour concrete into the pile cap pit until it reaches the pile cap positioning template, vibrate the poured concrete with a vibrating device to make it compact, and scrape the surface flat; Step 5: Cover with geotextile and sprinkle water for maintenance, and finally remove the positioning template; A vibrating device for vibrating densely poured concrete comprises a shell (1), one end of the shell (1) is provided with a flexible shaft (2), and the interior of the shell (1) is provided with a rotating shaft (3) along its central axis, the flexible shaft (2) is connected to the rotating shaft (3), and the flexible shaft (2) drives the rotating shaft (3) to rotate, the outer surface of the shell (1) is symmetrically fixedly connected with a plurality of groups of connecting shells (4), and the connecting shells (4) correspond to each other, and each group of the connecting shells (4) is communicated with the shell (1), and a vibrating mechanism (5) is provided inside the connecting shell (4), and the vibrating mechanism (5) includes a guide column (501), a connecting rod (502), a fixing plate (503) and a spring sheet (504); The end of the inner surface of the connecting shell (4) away from the outer shell (1) is fixedly connected to a guide column (501), and one end of the guide column (501) is fixedly connected to the outer shell (1), and the other end is movably connected to a connecting rod (502), one end of the connecting rod (502) passes through the interior of the outer shell (1) and is fixedly connected to a fixing plate (503), and the outer surface of the fixing plate (503) is arc-shaped, and a plurality of groups of spring pieces (504) are fixedly connected at equal distances near the middle of the outer surface of the fixing plate (503) away from the connecting rod (502); a plurality of groups of mounting plates (514) are fixedly connected at equal distances on both sides of the outer surface of the connecting rod (502), and a plurality of groups of spring pieces (513) are fixedly connected at positions corresponding to the fixing plate (503) on both sides of the inner surface of the connecting shell (4); The outer surface of the rotating shaft (3) is fixedly connected with a plurality of connecting plates (505) at equal distances. A movable groove (506) is provided at the connection between the outer surface of the connecting rod (502) and the guide column (501), and a spring (507) is provided inside the movable groove (506). One end of the spring (507) is fixedly connected to the guide column (501), and the other end of the spring (507) is fixedly connected to the movable groove (506).

2. The method for pouring and curing pile caps of high-pile beam-slab wharf according to claim 1, characterized in that: The cross-sectional area of ​​the opening of the movable groove (506) is larger than the cross-sectional area of ​​the guide column (501), and a sliding groove (508) is provided on both sides of the outer surface of the connecting rod (502) close to one end of the shell (1), and the interior of the sliding groove (508) is slidably connected to a slider (509), and the cross-section of the slider (509) is T-shaped, and one end of the slider (509) passes through the outside of the sliding groove (508) and is fixedly connected to the movable column (510).

3. The method for pouring and curing pile caps of high-pile beam-slab wharf according to claim 2, characterized in that: A connecting tube (511) is fixedly connected to a position on the inner surface of the connecting shell (4) corresponding to the movable column (510), and one end of the movable column (510) passes through the interior of the connecting tube (511) and is movably connected thereto. A second spring (512) is provided inside the connecting tube (511), and one end of the second spring (512) is fixedly connected to the connecting tube (511), and the other end of the second spring (512) is fixedly connected to the movable column (510).

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