Device for controlling over-filling of pile foundation concrete

Abstract

The utility model provides a device for controlling over-filling of pile foundation concrete. The device comprises a left support and a right support, a supporting rod is arranged between the middle of the top end of the left support and the middle of the top end of the right support, a suspension structure is arranged in the middle of the supporting rod, a weight measuring device is connected to the bottom of the suspension structure, a hanging barrel is connected to the bottom of the weight measuring device, and a through hole is formed in the side wall of the hanging barrel. Whether the liquid level of the pile foundation concrete reaches the designed elevation can be effectively known, so that the over-filling of the concrete is controlled, the quality of a pile foundation finished product is controlled, and concrete materials are saved.

Description

Technical Field

[0001] This utility model relates to the field of bored pile construction technology, and in particular to a device for controlling over-pouring of pile foundation concrete. Background Technology

[0002] Mud-wall bored piles are constructed by slowly drilling with a pile driver under mud-wall conditions, using mud to carry out the drill cuttings and protect the borehole wall from collapse. After the borehole is formed, underwater concrete is poured using a guide pipe to replace the mud.

[0003] During underwater concrete pouring for pile foundations, when sealing the bottom, the first batch of concrete flows out of the tremie pipe and spreads around the bottom of the hole, mixing with sediment and mud inside the hole to form a thin layer of laitance. The first poured concrete is always on top of this layer, eventually solidifying at the pile top into a mixed layer of laitance, mud, and other materials. This mixed layer and the underlying inferior concrete layer have low strength and should be removed. When the laitance layer is at the pile top, the concrete pouring height must be controlled to ensure the pile strength at the design elevation.

[0004] Due to factors such as incomplete removal of sediment at the bottom of the borehole, poor geological conditions, and excessively high density of mud inside the borehole, traditional manual measurement using a conical hammer to measure the concrete surface is problematic. Because the conical hammer is heavy and applies high pressure, and the concrete contains fewer aggregates and has a large slump when poured to the top, individual feel varies, leading to significant measurement errors. This is especially true for piles where the top is less than 5 meters below ground level, where measurement errors are even greater. Relying on experience can easily result in over-pouring of concrete, wasting materials and increasing costs. Utility Model Content

[0005] The purpose of this invention is to provide a device for controlling over-pouring of concrete in pile foundations, so as to improve the quality of concrete pouring in pile foundations.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is: a device for controlling over-pouring of concrete in pile foundations, characterized in that it includes a left support and a right support; a support rod is provided between the top middle of the left support and the right support, a suspension structure is provided in the middle of the support rod, a weighing device is connected to the bottom of the suspension structure, a hanging bucket is connected to the bottom of the weighing device, and a through hole is provided on the side wall of the hanging bucket.

[0007] Furthermore, both the left and right supports have a limiting structure at the top center to restrict the rotation of the support rod.

[0008] Furthermore, the limiting structure is a set of rivets.

[0009] Furthermore, the support rod has a vertically penetrating connecting hole in the middle; the suspension structure includes a hook, the top of the hook has a threaded connecting section, the threaded connecting section passes through the connecting hole from bottom to top and is threadedly connected to a nut.

[0010] Furthermore, the weighing device includes a suspended electronic scale and a measuring rope that are assembled and connected. The top of the suspended electronic scale is provided with a hanging ring, which is connected to the bottom of the suspension structure. The bottom of the suspended electronic scale is provided with a hook, on which the measuring rope is connected. The bottom end of the measuring rope is connected to the hanging bucket.

[0011] Furthermore, the hanging bucket includes a bucket body, and a handle is provided on the top of the bucket body, which is connected to the bottom end of the weighing device.

[0012] Furthermore, the outer wall of the barrel is fixedly provided with reinforcing ribs.

[0013] Furthermore, both the left support and the right support are sleepers.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] I. This utility model provides left and right supports on both sides of the steel casing, with the left and right supports higher than the top surface of the steel casing. The support rod is set on the left and right supports, and two sets of limiting rivets are symmetrically arranged on the upper surface of the left and right supports. The support rod is perpendicular to the left and right supports, and both ends of the support rod pass through the gap between the two sets of limiting rivets, extending to the outside of the left and right supports to support the suspension structure. The weighing device includes a suspended electronic scale and a measuring rope. The suspension structure is set at the center of the support rod, passes vertically through and is fixed to the support rod. The suspended electronic scale and measuring rope are suspended on the suspension structure. The hanging bucket is suspended at the design elevation of the pile hole concrete by the measuring rope. The weight value of the hanging bucket is measured in real time by the suspended electronic scale to determine the relative position of the bottom surface of the hanging bucket and the concrete pouring surface.

[0016] Second, this utility model is simple to operate, easy to assemble and disassemble, and inexpensive. It can accurately control the over-pouring thickness of concrete by data quantification, avoiding the errors caused by traditional manual measurement based on experience. It can guide actual construction, save materials, and improve the quality of pile foundations. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of one embodiment of the present utility model;

[0018] Figure 2 This is a front view of one embodiment of the present utility model;

[0019] Figure 3 This is a left view of one embodiment of the present invention;

[0020] Figure 4 This is a top view of one embodiment of the present utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the hanging bucket in one embodiment of the present invention.

[0022] In the diagram:

[0023] 1. Left support; 2. Right support; 3. Support rod; 4. Limiting structure; 5. Suspension structure; 6. Suspended electronic scale; 7. Measuring rope; 8. Hanging bucket; 81. Bucket body; 82. Handle; 83. Reinforcing steel bar. Detailed Implementation

[0024] The present invention will be described in detail below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in the embodiments of the present invention can be combined with each other. For ease of description, the terms "upper," "lower," "left," and "right" appearing below only indicate that they correspond to the upper, lower, left, and right directions in the accompanying drawings and do not limit the structure.

[0025] like Figures 1-5 As shown, a device for controlling over-pouring of concrete in pile foundations according to this embodiment includes a left support 1 and a right support 2. Both the left support 1 and the right support 2 are sleepers.

[0026] A support rod 3 is provided between the top center of the left support 1 and the right support 2. In this embodiment, the support rod is made of a 340x40x2mm rectangular steel tube, and a hole with a diameter of 25mm is drilled on the top and bottom of the center position of the square steel tube.

[0027] The support rod 3 has a suspension structure 5 in the middle, and a weighing device is connected to the bottom of the suspension structure 5. A hanging bucket 8 is connected to the bottom of the weighing device, and a through hole is opened on the side wall of the hanging bucket 8.

[0028] like Figures 1-4 As shown, in this embodiment, both the left support 1 and the right support 2 have a limiting structure 4 at the top center to restrict the rotation of the support rod 3. The limiting structure 4 is a set of rivets. The rivets are made of round steel bars with a diameter of 20mm, and the spacing between the rivets is 5-10mm larger than the outer diameter of the support rod.

[0029] like Figures 1-4As shown, in this embodiment, the support rod 3 has a vertically penetrating connecting hole in its middle. The suspension structure 5 includes a hook, the top of which has a threaded connecting section. The threaded connecting section passes through the connecting hole from bottom to top and is threaded with a nut. Specifically, the suspension structure is made of bent steel bars with a diameter of 20mm, the ends of which are threaded and fixed to the connecting rod with hexagonal nuts.

[0030] like Figures 1-4 As shown, in this embodiment, the weighing device includes a suspended electronic scale 6 and a measuring rope 7 that are assembled and connected. The top of the suspended electronic scale 6 is provided with a hanging ring, which is connected to the bottom of the suspension structure 5. The bottom of the suspended electronic scale 6 is provided with a hook, on which the measuring rope 7 is connected. The bottom end of the measuring rope 7 is connected to the hanging bucket 8.

[0031] like Figures 1-5 As shown, the hanging bucket 8 includes a bucket body 81, with a handle 82 at the top of the bucket body 81, which is connected to the bottom of the weighing device. Reinforcing ribs 83 are fixedly provided on the outer wall of the bucket body 81. Specifically, the bucket body is made of a seamless round steel tube with an outer diameter of 219mm, a wall thickness of 8mm, and a length of 30cm. The bottom of the round steel tube is sealed by welding with a steel plate with a thickness of 8mm and a diameter of 219mm. Four rows of 6mm through holes are symmetrically opened around the bucket body. The reinforcing ribs are four 25mm diameter round steel bars evenly welded around the bucket body.

[0032] Before installing the device of this embodiment, first connect the suspended electronic scale to the measuring rope, then connect the measuring rope to the hanging bucket. Next, suspend the electronic scale or manually measure the weight G1 of the hanging bucket. Then, slowly place the hanging bucket into the container (box) containing the pile foundation slurry layer liquid, allowing the slurry layer liquid to enter the hanging bucket through the through-hole in the side wall. Then, suspend the electronic scale or manually measure the weight G2 of the hanging bucket at this point. Finally, slowly place the hanging bucket into the container (box) containing the pile foundation concrete, allowing some of the liquid from the pile foundation concrete to enter the hanging bucket through the through-hole in the side wall. Then, suspend the electronic scale or manually measure the weight G3 of the hanging bucket at this point.

[0033] The method of using this utility model device is as follows: Place left support 1 and right support 2 parallel to each other on both sides of the steel casing 9, ensuring that left support 1 and right support 2 are higher than the top surface of the steel casing. Then, place a support rod 3 on the left support 1 and right support 2, perpendicular to them. Symmetrically install two sets of limiting rivets 4 on the upper surfaces of the left and right supports, with the rivet spacing 5-10mm larger than the outer diameter of the support rod 3. Then, thread the top of the suspension structure 5 through the hole at the center of the support rod and fix it with hexagonal bolts. Hang the hanging ring of the electronic scale 6 on the suspension structure 5. Then, tie the top of the measuring rope to the hook of the electronic scale, calculate the length of the measuring rope, and suspend the bucket at the designed elevation of the pile hole concrete. Manually read the changes in the value of the suspended electronic scale in real time during the pile foundation concrete pouring process. When the reading of the suspended electronic scale is G1, the bucket is above the laitance layer. When the reading of the suspended electronic scale is in the G2-G1 range, the bottom of the bucket is in the laitance layer. When the reading on the suspended electronic scale is less than G2, the bottom of the bucket is in contact with the concrete layer, and the concrete in the pile hole has reached the design elevation. Concrete pouring should be stopped immediately to avoid over-pouring of concrete.

[0034] The device in this embodiment can determine the relative position of the bottom of the bucket to the concrete pouring surface by measuring the weight change of the bucket in real time using an electronic scale. This device is simple to operate, easy to assemble and disassemble, and inexpensive. It can precisely control the over-pouring thickness of concrete by quantifying data, avoiding errors caused by traditional manual measurements based on experience. This guides actual construction, saves materials, and improves the quality of pile foundations.

[0035] The above embodiments should be understood as being used only to illustrate the present invention more clearly, and not to limit the scope of the present invention. After reading the present invention, any modifications of the embodiments by those skilled in the art in various equivalent forms fall within the scope defined by the appended claims.

Claims

1. A device for controlling over-pouring of concrete in pile foundations, characterized in that, It includes a left support (1) and a right support (2); a support rod (3) is provided between the top center of the left support (1) and the right support (2), a suspension structure (5) is provided in the middle of the support rod (3), a weighing device is connected to the bottom of the suspension structure (5), a hanging bucket (8) is connected to the bottom of the weighing device, and a through hole is opened on the side wall of the hanging bucket (8).

2. The device for controlling over-pouring of pile foundation concrete according to claim 1, characterized in that, The top center of both the left support (1) and the right support (2) is provided with a limiting structure (4) for restricting the rotation of the support rod (3).

3. The device for controlling over-pouring of pile foundation concrete according to claim 2, characterized in that, The limiting structure (4) is a set of rivets.

4. The device for controlling over-pouring of pile foundation concrete according to claim 1, characterized in that, The support rod (3) has a vertically penetrating connecting hole in the middle; the suspension structure (5) includes a hook, the top of the hook is provided with a threaded connecting section, the threaded connecting section passes through the connecting hole from bottom to top and is threaded with a nut.

5. The device for controlling over-pouring of pile foundation concrete according to claim 1, characterized in that, The weighing device includes a suspended electronic scale (6) and a measuring rope (7) connected together. The top of the suspended electronic scale (6) is provided with a hanging ring, which is connected to the bottom of the suspension structure (5). The bottom of the suspended electronic scale (6) is provided with a hook, on which the measuring rope (7) is connected. The bottom end of the measuring rope (7) is connected to the hanging bucket (8).

6. The device for controlling over-pouring of pile foundation concrete according to claim 1, characterized in that, The hanging bucket (8) includes a bucket body (81), and a handle (82) is provided on the top of the bucket body (81). The handle (82) is connected to the bottom end of the weighing device.

7. The device for controlling over-pouring of pile foundation concrete according to claim 6, characterized in that, The outer wall of the barrel (81) is fixed with reinforcing ribs (83).

8. A device for controlling over-pouring of concrete in pile foundations according to any one of claims 1-7, characterized in that, Both the left and right supports are sleepers.

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