Slurry fullness detection device

Abstract

The utility model discloses a slurry plumpness detection device which comprises a transparent sleeve, a first pipeline, a valve, a second pipeline and a sealing plug, scales are arranged on the side wall of the transparent sleeve in the length direction of the transparent sleeve. One end of the first pipeline is communicated with a grouting opening below the side wall of the transparent sleeve; the valve is mounted on the first pipeline; the first end of the second pipeline is communicated with a slurry outlet above the side wall of the transparent sleeve; the sealing plug is installed in an upper end opening of the transparent sleeve, and a first through hole for a prefabricated pier column steel bar to penetrate through is axially formed in the middle of the sealing plug; the transparent sleeve is adopted, whether grout is full or not can be visually seen from the outer side of the transparent sleeve, the influence degree of the on-site grouting process and the grouting opening sealing process on the grouting plumpness can be detected, and then the grouting construction process is conveniently improved; and the bleeding rate and the expansion or shrinkage rate of the serous fluid can be measured from the scales on the outer side of the transparent sleeve.

Description

Technical Field

[0001] The utility model relates to the technical field of slurry fullness detection, in particular to a slurry fullness detection device. Background Technique

[0002] The sleeve grouting connection technology is to insert the ribbed precast pier column steel bar 3 into the grouting connection sleeve 10 to reach the specified depth, inject high-strength non-shrinking cement-based grouting material 9 (the 28-day strength is not less than 100 Mpa) into the inner cavity of the connection sleeve 10, fill the gap between the precast pier column steel bar 3 and the inner cavity of the connection sleeve 10, and the grouting material 9 solidifies and anchors the precast pier column steel bar 3 in the connection sleeve 10 until the design strength is reached, and the steel bars are connected together. The connection sleeve 10 is integrally cast with ductile iron, one end of which is a precast installation end, and the other end is a field assembly end. The penetration lengths of the steel bars at the precast installation end and the field assembly end should not be less than 10ds (ds is the diameter of the longitudinal steel bar to be connected); a grouting port is arranged at the lower end of the connection sleeve 10, and a slurry outlet is arranged at the upper end of the connection sleeve 10. In addition Figure 1 The sealing ring 2, leveling mortar layer 4, top edge of the bearing platform 5, bottom edge of the precast pier column 6, plug 7, grouting pipe 8, and slurry outlet pipe 11 are also shown. The layout structures are all prior arts and will not be elaborated here.

[0003] In the lower structure of the bridge, the pier column adopts the precast and assembled construction method, that is, the bearing platform is constructed by cast-in-place construction method according to the conventional method, the pier column is precast in the factory, and the connection between the bearing platform and the pier column adopts the precast assembly process of grouting sleeve connection. At present, there is no effective detection method for the fullness of the inner slurry in the grouting sleeve (including the simulation device). Only through destructive testing can the grouting fullness of the entity be seen. However, the current entity destructive inspection is difficult because the sleeve is made of high-strength ductile iron that meets the use requirements of HRB500E ribbed steel, and there is also a 5-cm-thick C50 concrete layer wrapped outside the sleeve. Therefore, it is not realistic to use destructive inspection to observe the fullness of the slurry in the grouting sleeve.

[0004] Therefore, it is necessary to develop a slurry fullness detection device to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to design a slurry fullness detection device to solve the above problems.

[0006] The utility model realizes the above purpose through the following technical solutions:

[0007] A slurry fullness detection device includes:

[0008] A transparent sleeve; both ends of the transparent sleeve are open, and a scale is arranged on the side wall of the transparent sleeve along its length direction;

[0009] The first pipeline; one end of the first pipeline is communicated with the grouting port below the side wall of the transparent sleeve;

[0010] A valve for controlling the opening and closing of the first pipeline; the valve is installed on the first pipeline;

[0011] The second pipeline; the second pipeline is formed in an L shape, the first end of the second pipeline is communicated with the slurry outlet above the side wall of the transparent sleeve, the second end of the second pipeline is arranged upward, and the setting height of the second end of the second pipeline is higher than the setting height of the slurry outlet;

[0012] A sealing plug; the sealing plug is installed in the upper end opening of the transparent sleeve, and a first through hole for the precast pier column steel bar to pass through is axially arranged in the middle of the sealing plug.

[0013] The beneficial effects of the utility model are as follows:

[0014] In this application, a transparent sleeve is adopted, which can not only directly see whether the slurry is full from the outside of the transparent sleeve, but also test the influence degree of the on-site grouting process and the grouting port sealing process on the grouting fullness, so as to facilitate the improvement of the grouting construction process; and the bleeding rate, expansion or shrinkage rate of the slurry can also be measured from the scale on the outside of the transparent sleeve. Description of the drawings

[0015] Figure 1 It is a schematic diagram of the on-site steel bar connection sleeve grouting connection structure;

[0016] Figure 2 It is a schematic diagram of the structure of this application;

[0017] Figure 3 It is a schematic diagram of the slurry fullness detection principle;

[0018] Figure 4 It is a top view of the sealing plug in this application.

[0019] In the figure: 1 - Embedded connecting steel bars in the bearing platform; 2 - Sealing ring; 3 - Precast pier column steel bar; 4 - Leveling mortar layer; 5 - Top edge of the bearing platform; 6 - Bottom edge of the precast pier column; 7 - Plug; 8 - Grouting pipe; 9 - Grouting material; 10 - Connecting sleeve; 11 - Slurry outlet pipe; 12 - Installation plate; 13 - Rib plate; 14 - Transparent sleeve; 15 - Scale; 16 - Sealing plug; 17 - First pipeline; 18 - Valve; 19 - Second pipeline; 20 - Initially filled slurry surface; 21 - Expanded slurry surface; 22 - Bleeding surface. Detailed implementation manners

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. The components of the embodiments of the present utility model usually described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the claimed present utility model, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0022] It should be noted that like reference numerals and letters denote like items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0023] In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "left", "right", etc. are based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationships in which the utility model product is usually placed during use, or the orientation or positional relationships commonly understood by those skilled in the art. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present utility model.

[0024] In addition, the terms "first", "second", etc. are only used for descriptive distinction and should not be understood as indicating or implying relative importance.

[0025] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, terms such as "set", "connected" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0026] The following will describe in detail the specific implementation manners of the present utility model with reference to the accompanying drawings.

[0027] Such as Figure 2 and 4As shown, a slurry fullness detection device includes:

[0028] A transparent sleeve 14; both ends of the transparent sleeve 14 are open, and a scale 15 is provided on the side wall of the transparent sleeve 14 along its length direction; the zero point of the scale 15 is located below the side wall of the transparent sleeve 14; the transparent sleeve 14 is preferably made of acrylic plexiglass;

[0029] A first pipeline 17; one end of the first pipeline 17 is communicated with the grouting port below the side wall of the transparent sleeve 14;

[0030] A valve 18 for controlling the opening and closing of the first pipeline 17; the valve 18 is installed on the first pipeline 17;

[0031] A second pipeline 19; the second pipeline 19 is formed in an L shape, the first end of the second pipeline 19 is communicated with the slurry outlet above the side wall of the transparent sleeve 14, the second end of the second pipeline 19 is arranged upward, and the height of the second end of the second pipeline 19 is higher than the height of the slurry outlet;

[0032] A sealing plug 16; the sealing plug 16 is installed in the upper opening of the transparent sleeve 14, and a first through hole for the precast pier column steel bar to pass through is axially arranged in the middle of the sealing plug 16.

[0033] As Figure 2 shown, in some embodiments, the slurry fullness detection device further includes a mounting plate 12, a second through hole is provided in the middle of the mounting plate 12, and the lower end of the transparent sleeve 14 is placed in the second through hole. Six rib plates 13 are uniformly arranged around the second through hole on the mounting plate 12, and the lower part of the transparent sleeve 14 passes through the guiding channel formed between the six rib plates 13. The rib plate 13 is formed in a right triangle, one right side of the rib plate 13 is connected to the mounting plate 12, and the other right side of the rib plate 13 is abutted against the side wall of the transparent sleeve 14.

[0034] In some embodiments, the sealing plug 16 is a rubber sealing plug 16. The maximum range of the scale 15 value is 500 mm, and the minimum scale division value is 1 mm.

[0035] The test operation steps of using the slurry fullness detection device of the present application are as follows:

[0036] (1) When the on-site grouting starts to be constructed, place this detection device on-site, and the placement conditions should be the same as those of the on-site grouting structure. It is not allowed to level the placement position of the slurry fullness detection device manually (this is to detect the influence of the structure installation process on the slurry fullness);

[0037] (2) Before use, the inside of the transparent sleeve 14 of the detection device should be kept dry, and no water droplets (clear water) are allowed to exist;

[0038] (3) Insert the precast pier reinforcement bars 3 through the first through-hole on the sealing plug 16 from the top into the transparent sleeve 14. The sealing plug 16 needs to tightly plug the upper opening of the transparent sleeve 14. Simulate the on-site grouting process and grout high-strength non-shrinking cement-based grouting material into the grouting port of the detection device until the second pipeline 19 connected to the outlet port discharges slurry, and then close the valve 18 on the first pipeline 17;

[0039] (4) As Figure 3 shown, after standing for 1 min, read and record the initial height A1 (the height of the initially filled slurry surface 20); after placing for 3 h and 24 h, measure the bleeding surface height A2 (the height of the bleeding surface 22) and the cement slurry expansion height A3 (the height of the expanded slurry surface 21) respectively;

[0040] (5) Result calculation:

[0041] The normal pressure bleeding rate after 3 h and 24 h: B = [(A2 - A3) / A1] × 100%;

[0042] The free expansion rate after 3 h and 24 h: ε = [(A3 - A1) / A1] × 100%;

[0043] (6) Observe whether there are air bubbles in the slurry inside the detection device, whether there is a foam layer in the shrunk and end slurry. If so, it is unqualified and the test should be repeated.

[0044] This application uses a transparent material to restore the on-site connection sleeve in a 1:1 ratio and fully simulates the on-site construction process, solving the problem that the solid grouting effect cannot be detected. The slurry fullness detection device of this application can not only visually see and detect the situation of the slurry in the pipe, but also provide a reference for further improving the grouting process.

[0045] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and refinements can still be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A slurry fullness detection device, characterized in that Comprising: A transparent sleeve; both ends of the transparent sleeve are open, and a scale is provided on the side wall of the transparent sleeve along its length direction; A first pipeline; one end of the first pipeline is communicated with a grouting port below the side wall of the transparent sleeve; A valve for controlling the opening and closing of the first pipeline; the valve is installed on the first pipeline; A second pipeline; the second pipeline is formed in an L shape, the first end of the second pipeline is communicated with a slurry outlet above the side wall of the transparent sleeve, the second end of the second pipeline is arranged upward, and the height of the second end of the second pipeline is higher than the height of the slurry outlet; A sealing plug; the sealing plug is installed in the upper end opening of the transparent sleeve, and a first through hole for the precast pier column reinforcement to pass through is axially arranged in the middle of the sealing plug.

2. The slurry fullness detection device according to claim 1, characterized in that, The slurry fullness detection device further includes a mounting plate, a second through hole is arranged in the middle of the mounting plate, and the lower end of the transparent sleeve is placed in the second through hole.

3. The slurry saturation detection device according to claim 2, characterized in that, A plurality of rib plates are uniformly arranged around the second through hole on the mounting plate, and the lower part of the transparent sleeve passes between the plurality of rib plates.

4. The slurry saturation detection device according to claim 3, characterized in that, The rib plates are formed in right-angled triangles, one right-angled side of the rib plate is connected to the mounting plate, and the other right-angled side of the rib plate abuts against the side wall of the transparent sleeve.

5. The slurry fullness detection device according to claim 1, wherein, The zero point of the scale is located below the side wall of the transparent sleeve.

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