A grouting device for polymer and soil sample interface

Abstract

The present invention discloses a grouting device for the interface between a polymer and a soil sample, comprising a mold forming mechanism for molding the polymer and a fixing mechanism for fixing the mold forming mechanism. The mold forming mechanism comprises a core body fixedly connected to the fixing mechanism, an outer ring sleeved on the outside of the core body, an injection molding cavity located between the outside of the core body and the inside of the outer ring, a circular ring located at the top of the injection molding cavity and used to mold the polymer, and an injection molding tube located within the circular ring. The present invention has a simple structure, wherein a soil sample is placed at the bottom of the injection molding cavity and contacts the circular ring at the top. The polymer is grout-molded by the circular ring at the top, and during the molding process, it effectively and fully contacts the soil sample and chemically bonds with it. The grouting mold device is closer to engineering practice, providing effective experimental basis and support for the bonding chemical reaction between the polymer and the soil sample in engineering practice, thereby facilitating the promotion and use of the project.

Description

Technical Field

[0001] The invention relates to the technical field of polymer grouting mold design, in particular to a grouting device for the interface between a polymer and a soil sample. Background Art

[0002] In civil and hydraulic engineering, interfaces between dissimilar materials are often encountered. Due to differences in the mechanical properties of the materials on either side of the interface, weak soil layers often exist at the interface, resulting in complex stress and deformation. Currently, most polymer grouting molds, both domestically and internationally, separate the polymer and soil sample, with little consideration given to interfacial grouting between the polymer and soil. Non-water-reactive polymers exhibit adhesiveness and fluidity, and they undergo a chemical reaction with the soil. Therefore, consideration of the bonding grouting between the polymer and soil is crucial.

[0003] Therefore, it is a problem worth studying to provide a polymer and soil sample interface grouting device that can bond the polymer and the soil sample. Summary of the Invention

[0004] The purpose of the present invention is to provide a polymer and soil sample interface grouting device for bonding the polymer and the soil sample.

[0005] The object of the present invention is achieved like this:

[0006] A grouting device for the interface between a polymer and a soil sample comprises a mold forming mechanism for molding the polymer and a fixing mechanism for fixing the mold forming mechanism. The mold forming mechanism comprises a core body fixedly connected to the fixing mechanism, an outer ring sleeved on the outside of the core body, an injection cavity located between the outside of the core body and the inside of the outer ring, a circular ring located at the top of the injection cavity and used to mold the polymer, and an injection tube located within the circular ring.

[0007] The fixing mechanism includes a bottom plate fixedly connected to the bottom of the core body and the bottom of the outer ring, an upper cover located on the top of the core body and fixedly connected to the top of the outer ring, a pressure relief cover plate fixedly connected to the upper surface of the upper cover, and an injection molding cover.

[0008] The pressure relief cover is provided with a pressure relief pipe, the upper cover is provided with a first through hole, the top of the ring is provided with a second through hole, the pressure relief pipe is connected with the first through hole and the second through hole, and the pressure relief pipe is connected with the interior of the ring through the first through hole and the second through hole.

[0009] The injection molding cover is provided with a third through hole for polymer liquid to enter, the upper cover is provided with a mounting hole connected with the third through hole, and the injection molding tube is located in the mounting hole and connected with the inside of the ring.

[0010] The injection molding tube includes a tube body fixedly connected to the injection molding cover and connected to the third through hole of the injection molding cover, grouting holes arranged along the length direction of the tube body, a plurality of grouting holes located on the side of the tube body and connected to the grouting holes, and a cleaning mechanism located at the bottom of the tube body.

[0011] The angle between the central axis of the slurry outlet hole and the horizontal direction is 15-20 degrees, and the plurality of slurry outlet holes are evenly distributed along the side of the pipe body.

[0012] The central axis of the grouting hole coincides with the central axis of the pipe body.

[0013] The cleaning mechanism includes a threaded hole located at the bottom of the tube body, and a bolt located at the bottom of the tube body and used for blocking the threaded hole, wherein the bolt is threadably matched with the threaded hole.

[0014] The present invention has the following beneficial effects: the structure is simple, a soil sample is placed at the bottom of the injection cavity, and the soil sample contacts the upper circular ring. The polymer is grout-molded through the upper circular ring, effectively and fully contacting the soil sample during the molding process and chemically bonding with it. This grouting mold device is more realistic in engineering practice, providing effective experimental basis and support for the chemical bonding reaction between polymers and soil samples in engineering practice, thereby facilitating the promotion and application of engineering projects. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the present invention;

[0016] Figure 2 for Figure 1 A top view of

[0017] Figure 3 Schematic diagram of the structure of the outer ring of the present invention;

[0018] Figure 4 A top view of the upper cover of the present invention;

[0019] Figure 5 It is the cross-sectional view in the AA direction;

[0020] Figure 6 Schematic diagram of the structure of the core of the present invention;

[0021] Figure 7 Schematic diagram of the structure of the injection molded tube of the present invention;

[0022] Figure 8 It is the cross-sectional view in the BB direction;

[0023] In the figure: base plate 1, outer ring 2, core body 3, upper cover 4, injection molding cover 5, pressure relief cover plate 6, pressure relief pipe 7, circular ring 8, injection molding pipe 9, injection molding cavity 10, tube body 11, grouting hole 12, slurry outlet hole 13, threaded hole 14. DETAILED DESCRIPTION

[0024] The present invention will be further described below with reference to the accompanying drawings and examples.

[0025] Example 1:

[0026] like Figures 1 to 6 As shown, a grouting device for the interface between a polymer and a soil sample comprises a mold forming mechanism for molding the polymer and a fixing mechanism for fixing the mold forming mechanism, wherein the mold forming mechanism comprises a core body 3 fixedly connected to the upper surface of the fixing mechanism, an outer ring 2 sleeved on the outside of the core body 3, an injection cavity 10 located between the outside of the core body 3 and the inside of the outer ring 2, a circular ring 8 located at the top of the injection cavity 10 and used for molding the polymer, and an injection tube 9 located in the circular ring 8, the outer ring 2 is fixed to the upper surface of the fixing mechanism, the bottom of the injection cavity 10 is the upper surface of the fixing mechanism, the circular ring 8 is an annular accommodating cavity with an opening facing downward, the injection tube 9 is connected to the annular accommodating cavity for molding the liquid polymer, the bottom of the circular ring 8 is connected to the injection cavity 10, the soil sample is placed at the bottom of the injection cavity 10, and the soil sample is in contact with the upper circular ring 8. The polymer is grout-formed through the upper circular ring 8. During the forming process, it effectively and fully contacts the soil sample and undergoes chemical bonding. The grouting mold device is closer to engineering practice, providing effective experimental basis and support for the bonding chemical reaction between the polymer and the soil sample in engineering practice, which is convenient for the promotion and use of the project.

[0027] The fixing mechanism includes a base plate 1 fixedly connected to the bottom of the core body 3 and the bottom of the outer ring 2 via a bolt assembly, an upper cover 4 located on the top of the core body 3 and fixedly connected to the top of the outer ring 2 via a bolt assembly, a pressure relief cover plate 6 fixedly connected to the upper surface of the upper cover 4 via a bolt assembly, and an injection molding cover 5. The pressure relief cover plate 6 is provided with a pressure relief pipe 7, the upper cover 4 is provided with a first through hole, and the top of the circular ring 8 is provided with a second through hole. The pressure relief pipe 7 is connected to the first through hole and the second through hole, and the pressure relief pipe 7 is connected to the interior of the circular ring 8 through the first through hole and the second through hole. The injection molding cover 5 is provided with a third through hole for allowing the polymer liquid to enter, and the upper cover 4 is provided with a mounting hole connected to the third through hole. The injection molding tube 9 is located in the mounting hole and is connected to the inside of the circular ring 8. The top of the injection molding tube 9 passes through the circular ring 8 and is fixedly connected to the circular ring 8. The circular ring 8 is fixedly connected to the upper cover 4 by a bolt assembly. The grouting gun injects the polymer into the injection molding tube 9 through the third through hole, and the injection molding tube 9 is discharged into the accommodating cavity of the circular ring 8. During the polymer injection molding process, it effectively and fully contacts the soil sample and undergoes chemical bonding. The grouting mold device is closer to engineering practice, and provides effective experimental basis and support for the bonding chemical reaction between the polymer and the soil sample in engineering practice, which is convenient for the promotion and use of the project. When pressure relief is required during the injection molding process, the pressure is discharged through the first through hole, the second through hole and the pressure relief tube 7, providing a good environment for polymer injection molding.

[0028] Example 2:

[0029] like Figures 1 to 6 As shown, a grouting device for the interface between a polymer and a soil sample comprises a mold forming mechanism for molding the polymer and a fixing mechanism for fixing the mold forming mechanism, wherein the mold forming mechanism comprises a core body 3 fixedly connected to the upper surface of the fixing mechanism, an outer ring 2 sleeved on the outside of the core body 3, an injection cavity 10 located between the outside of the core body 3 and the inside of the outer ring 2, a circular ring 8 located at the top of the injection cavity 10 and used for molding the polymer, and an injection tube 9 located in the circular ring 8, the outer ring 2 is fixed to the upper surface of the fixing mechanism, the bottom of the injection cavity 10 is the upper surface of the fixing mechanism, the circular ring 8 is an annular accommodating cavity with an opening facing downward, the injection tube 9 is connected to the annular accommodating cavity for molding the liquid polymer, the bottom of the circular ring 8 is connected to the injection cavity 10, the soil sample is placed at the bottom of the injection cavity 10, and the soil sample is in contact with the upper circular ring 8. The polymer is grout-formed through the upper circular ring 8. During the forming process, it effectively and fully contacts the soil sample and undergoes chemical bonding. The grouting mold device is closer to engineering practice, providing effective experimental basis and support for the bonding chemical reaction between the polymer and the soil sample in engineering practice, which is convenient for the promotion and use of the project.

[0030] The fixing mechanism includes a base plate 1 fixedly connected to the bottom of the core body 3 and the bottom of the outer ring 2 via a bolt assembly, an upper cover 4 located on the top of the core body 3 and fixedly connected to the top of the outer ring 2 via a bolt assembly, a pressure relief cover plate 6 fixedly connected to the upper surface of the upper cover 4 via a bolt assembly, and an injection molding cover 5. The pressure relief cover plate 6 is provided with a pressure relief pipe 7, the upper cover 4 is provided with a first through hole, and the top of the circular ring 8 is provided with a second through hole. The pressure relief pipe 7 is connected to the first through hole and the second through hole, and the pressure relief pipe 7 is connected to the interior of the circular ring 8 through the first through hole and the second through hole. The injection molding cover 5 is provided with a third through hole for allowing the polymer liquid to enter, and the upper cover 4 is provided with a mounting hole connected to the third through hole. The injection molding tube 9 is located in the mounting hole and is connected to the inside of the circular ring 8. The top of the injection molding tube 9 passes through the circular ring 8 and is fixedly connected to the circular ring 8. The circular ring 8 is fixedly connected to the upper cover 4 by a bolt assembly. The grouting gun injects the polymer into the injection molding tube 9 through the third through hole, and the injection molding tube 9 is discharged into the accommodating cavity of the circular ring 8. During the polymer injection molding process, it effectively and fully contacts the soil sample and undergoes chemical bonding. The grouting mold device is closer to engineering practice, and provides effective experimental basis and support for the bonding chemical reaction between the polymer and the soil sample in engineering practice, which is convenient for the promotion and use of the project. When pressure relief is required during the injection molding process, the pressure is discharged through the first through hole, the second through hole and the pressure relief tube 7, providing a good environment for polymer injection molding.

[0031] like Figure 7 and Figure 8As shown, the injection tube 9 includes a tube body 11 fixedly connected to the injection molding cover 5 and connected to the third through hole of the injection molding cover 5, a grouting hole 12 arranged along the length of the tube body 11, a plurality of slurry holes 13 located on the side of the tube body 11 and connected to the grouting hole 12, and a cleaning mechanism located at the bottom of the tube body 11. The angle between the central axis of the slurry hole 13 and the horizontal direction is 15-20 degrees. The plurality of slurry holes 13 are evenly distributed along the side of the tube body 11 in a circumferential manner. There are three slurry holes 13, and the three slurry holes are evenly distributed along the side of the tube body 11. The angle between two adjacent slurry holes 13 is 120 degrees. The slurry holes 13 are arranged at an angle, which greatly reduces the grouting pressure during grouting of the polymer material and avoids damage to the lower soil sample. The central axis of the grouting hole 12 coincides with the central axis of the tube body 11. The cleaning mechanism includes a threaded hole 14 located at the bottom of the tube body 11 and a bolt located at the bottom of the tube body 11 and used to seal the threaded hole. The bolt is threadedly engaged with the threaded hole 14, and the threaded hole 14 can be opened and closed. During polymer grouting, the threaded hole 14 is closed to prevent leakage; after the polymer grouting solidifies, the threaded hole 14 is opened to clear the solidified polymer material in the grouting pipe, so that the polymer grouting pipe device is more in line with actual environmental conditions.

[0032] The present invention has a simple structure. A soil sample is placed at the bottom of the injection cavity, where it contacts the upper circular ring. The polymer is then grout-molded through the upper circular ring. During the molding process, the polymer effectively and fully contacts the soil sample and chemically bonds with it. This grouting mold device is more realistic in engineering practice, providing effective experimental evidence and support for the chemical bonding reaction between polymers and soil samples in actual engineering, facilitating its promotion and application in engineering projects.

Claims

1. A grouting device for the interface between polymer and soil sample, characterized by: The invention comprises a mold forming mechanism for molding polymers and a fixing mechanism for fixing the mold forming mechanism, wherein the mold forming mechanism comprises a core body fixedly connected to the fixing mechanism, an outer ring sleeved on the outside of the core body, an injection cavity located between the outside of the core body and the inside of the outer ring, a circular ring located at the top of the injection cavity and used to mold the polymer, and an injection tube located inside the circular ring; the fixing mechanism comprises a bottom plate fixedly connected to the bottom of the core body and the bottom of the outer ring, an upper cover located at the top of the core body and fixedly connected to the top of the outer ring, a pressure relief cover plate fixedly connected to the upper surface of the upper cover, and an injection pressure cover; a pressure relief pipe is provided on the pressure relief cover plate, A first through hole is provided on the upper cover, a second through hole is provided on the top of the ring, the pressure relief pipe is connected with the first through hole and the second through hole, and the pressure relief pipe is connected with the interior of the ring through the first through hole and the second through hole; the injection molding cover is provided with a third through hole for allowing polymer liquid to enter, and the upper cover is provided with a mounting hole connected with the third through hole, the injection molding pipe is located in the mounting hole and connected with the interior of the ring; the injection molding pipe includes a tube body fixedly connected to the injection molding cover and connected with the third through hole of the injection molding cover, grouting holes arranged along the length direction of the tube body, a plurality of grouting holes located on the side of the tube body and connected with the grouting holes, and a cleaning mechanism located at the bottom of the tube body.

2. The polymer and soil sample interface grouting device according to claim 1, characterized in that: The angle between the central axis of the slurry outlet hole and the horizontal direction is 15-20 degrees, and the plurality of slurry outlet holes are evenly distributed along the side of the pipe body.

3. The polymer-soil interface grouting device according to claim 1, characterized in that: The central axis of the grouting hole coincides with the central axis of the pipe body.

4. The polymer-soil interface grouting device according to claim 1, characterized in that: The cleaning mechanism includes a threaded hole located at the bottom of the tube body, and a bolt located at the bottom of the tube body and used for blocking the threaded hole, wherein the bolt is threadably matched with the threaded hole.

Images