Joint anchoring body pouring device and method of use thereof

Abstract

The application discloses a joint anchoring body pouring device and a using method thereof, and the device can form a mold for pouring a test piece through a U-shaped channel steel, front and back baffles and a closed sliding block; the device can fix magnetic inserts A and B at a preformed joint seam by arranging a disc with a preformed joint in a circular groove of the front and back baffles, and can form the preformed joint during the pouring of the test piece, and can obtain joint rock bodies with different angles by rotating the disc; the device can form anchor rods intersecting with the joint by passing the anchor rods through a straight groove in the side of the U-shaped channel steel and a groove hole of the magnetic inserts during the pouring of the test piece; the method can obtain various test pieces with the anchor rods matched with the joint by adjusting the angle and joint distribution of the joint disc arranged in the circular groove of the front and back baffles, and the method can simply and quickly obtain the test pieces with the anchor rods matched with the joint, and provides effective test technology and test methods for exploring the control mechanism of the anchor rods on the deformation and damage of the joint rock body.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of engineering rock mass, in particular to a joint anchoring body pouring device and a using method thereof. BACKGROUND

[0002] For the production of joint anchoring body, at present, it is mostly through drilling holes in rock mass containing prefabricated joints to install anchor rods, but the drilling process may cause uncontrollable internal damage to the sample itself, change the fracture mode of the sample, and the test cannot guarantee that only one factor is changed, thereby leading to unreliable final research results; at present, when preparing joint rock mass samples in the laboratory, a plurality of molds are mostly used at one time, the production cost is high, the molds do not have a recycling function, and waste is serious; at present, the control effect and mechanism of anchor rods on joint rock mass fracture are less studied, and there is a lack of a device that can simply and efficiently produce joint anchoring body samples, and pouring equipment is relatively rare. SUMMARY

[0003] The purpose of the present application is to solve the above problems, and provide a joint anchoring body pouring device and a using method thereof. In order to solve the above technical problems, the present application adopts the following technical scheme:

[0004] A joint anchoring body pouring device, comprising a back baffle, a U-shaped channel steel, a closing sliding block, a magnetic insert, an anchor rod, a front baffle and a joint disc, the U-shaped channel steel is arranged between the back baffle and the front baffle, the joint disc is rotatably arranged on the back baffle and the front baffle, the joint disc is provided with a prefabricated joint slot for inserting the magnetic insert, the magnetic insert comprises a magnetic insert A and a magnetic insert B, a magnetic insert slot is formed at the connection between the magnetic insert A and the magnetic insert B, the closing sliding block is slidably arranged at the opening side of the U-shaped channel steel, the parallel ends of the U-shaped channel steel are provided with side straight grooves, and the anchor rod is inserted into the side straight grooves and the magnetic insert slot.

[0005] Further, a sealing gasket is arranged between the back baffle and the U-shaped channel steel.

[0006] Further, the front baffle is provided with a grouting hole.

[0007] Further, the present application further discloses a using method of the joint anchoring body pouring device, comprising the following steps:

[0008] (1) First, use transparent adhesive tape to tightly adhere the U-shaped channel steel from the left side, the middle and the right side of the inside of the U-shaped channel steel in sequence, close the side straight grooves at both sides of the U-shaped channel steel, prevent the slurry from leaking out, and avoid that the model is damaged due to too large friction between the slurry and the U-shaped channel steel after the slurry is solidified in the subsequent demolding;

[0009] (2) use screw to connect the U-shaped channel steel and the joint disc containing 10mm thick pre-prepared round hole backstop is fixed, 10mm deep, circular groove inside the 20mm thick backstop, 10mm thick,

[0010] (3) Place the backstop as the mold bottom to the horizontal plane, place a 35mm wide sealing gasket on the part where the upper edge of the backstop coincides with the U-shaped channel steel 4, and set a pre-prepared hole on the sealing gasket, which is the same as the side edge of the U-shaped channel steel, to prevent slurry leakage, and then place the U-shaped channel steel;

[0011] (4) Put the full-thread 304 stainless steel rod used to simulate the anchor rod through the transparent adhesive tape on the side edge straight groove of the U-shaped channel steel and the end reserved slot hole of the magnetic insert A, and fix the position and angle of the stainless steel rod on the side edge of the U-shaped channel steel with nuts. After fixing the stainless steel rod, use sealing cement to seal the remaining slot holes on the side edge of the U-shaped channel steel;

[0012] (5) Use screws to install the U-shaped channel steel and the 10mm thick front backstop containing through the circular hole, cooperate with the closed sliding block, and form a square mold for pouring the sample. Adjust the position of the closed sliding block in the U-shaped channel steel according to the height of the sample;

[0013] (6) In the 10mm thick front backstop containing pre-prepared round hole, pass the 2mm×15mm×115mm magnetic insert B through the 10mm thick joint disc containing the same pre-prepared joint, and connect the two magnetic inserts using the magnetic property of the inserts;

[0014] (7) Select cement, lime, and sand as the three materials, and determine the mass ratio of water, gypsum, and fine sand as 6:7:3 according to the simulated material to mix uniformly as slurry;

[0015] (8) Take an appropriate amount of prepared slurry and pour it from the two square injection ports of the front backstop. After pouring, use a wooden hammer to gently shake the U-shaped channel steel to eliminate air bubbles in the slurry;

[0016] (9) After 1 hour of initial setting, remove the closed sliding block and the front and back backstops containing pre-prepared circular grooves, and slowly pull out the magnetic insert A and the magnetic insert B from the front and back of the sample;

[0017] ​(10) After 24 hours of solidification, the anchor rod and the joint sample are pulled out from the straight groove on the side of the U-shaped steel, the joint rock mass sample anchored by the anchor rod is obtained, the sample poured and formed is placed in a dry and ventilated place, indoor curing is carried out for 21 days, the joint anchoring body sample is obtained, and subsequent tests can be carried out;

[0018] (11) After one experiment is completed, the rock-like material on the U-shaped steel is cleaned, the above steps (1) to step (9) are repeated, and the joint angle and the number of the joint containing the prefabricated joint disc are changed in step (2), so that the sample under different joint distribution forms can be obtained, and the angle of the magnetic insert A and the anchor rod is adjusted in step (3), so that the joint anchoring body sample with different anchoring angles and joint angles can be obtained.

[0019] The present application has the following technical effects: (1) The device realizes one-time pouring of the joint anchoring body intersected by the joint and the anchor rod, avoids uncontrollable damage to the joint sample caused by secondary punching processing, and better controls the single-factor change in the joint anchoring body test. (2) The method is simple and efficient, and the preparation of various joint anchoring body samples can be completed by changing the installation angle of the prefabricated joint disc containing the joint and the installation angle of the anchor rod. The device can be recycled, and the application range of the device can be expanded by replacing prefabricated joint discs with different joint forms. The method is economical and simple, and significantly reduces the waste caused by one-time pouring molds. (3) The device can realize the joint anchoring body sample in various anchoring forms through the cooperation of the magnetic insert slot hole and the straight groove on the side of the U-shaped steel, and realize the control effect and mechanism research of the anchor rod on the joint rock mass fracture. BRIEF DESCRIPTION OF DRAWINGS

[0020] Fig. 1 It is a structural schematic diagram of the device for pouring the joint anchoring body in the present application.

[0021] Fig. 2 It is a structural schematic diagram of the magnetic insert. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0023] In the description of this invention, it should be noted that the terms "vertical," "upper," "lower," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or a connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0025] like Figs. 1-2 As shown, a joint anchoring device of the present invention includes a rear baffle 10, a U-shaped channel steel 4, a closed slider 2, a magnetic insert 5, an anchor rod 3, a front baffle 7, and a jointing disc 8. The U-shaped channel steel 4 is arranged between the rear baffle 10 and the front baffle 7. The jointing disc 8 is rotatably arranged on both the rear baffle 10 and the front baffle 7. The jointing disc 8 is provided with a prefabricated joint seam for inserting the magnetic insert 5. The magnetic insert 5 includes a magnetic insert A11 and a magnetic insert B12. A magnetic insert slot is formed at the connection between the magnetic insert A11 and the magnetic insert B12. The closed slider 2 is slidably arranged on the open side of the U-shaped channel steel 4. The parallel ends of the U-shaped channel steel 4 are provided with side straight grooves 9. The anchor rod 3 is inserted into the side straight grooves 9 and the magnetic insert slots.

[0026] A sealing gasket 1 is provided between the rear baffle 10 and the U-shaped channel steel 4;

[0027] The front baffle 7 is provided with grouting holes 6;

[0028] The method of using the joint anchor solid casting device of the present invention includes the following steps:

[0029] (1) First, use transparent tape to tightly adhere the U-shaped channel steel 4 from the left, middle and right sides inside, seal the straight grooves 9 on both sides of the U-shaped channel steel 4 to prevent the slurry from leaking out, and avoid excessive friction between the slurry and the U-shaped channel steel 4 after the slurry solidifies during subsequent demolding, which could damage the model.

[0030] (2) Use The screws will connect the U-shaped channel steel 4 and contain 10mm thick pre-prepared round hole backstop is fixed, 10mm deep, circular groove inside the 20mm thick backstop, 10mm thick,

[0031] (3) Place the backstop 10 as the mold bottom to the horizontal plane, place a 35mm wide sealing gasket on the part where the upper edge of the backstop 10 coincides with the U-shaped channel steel 4, and set the same pre-prepared hole on the sealing gasket as the side of the U-shaped channel steel 4 to prevent slurry leakage, and then place the U-shaped channel steel 4;

[0032] (4) The full thread 304 stainless steel rod used to simulate the anchor rod 3 is inserted through the transparent adhesive tape on the side straight groove 9 of the U-shaped channel steel 4 and the end reserved groove hole of the magnetic plug A11 in sequence, and the position and angle of the stainless steel rod are fixed on the side of the U-shaped channel steel 4 with nuts. After the stainless steel rod is fixed, use sealing cement to seal the remaining groove holes on the side of the U-shaped channel steel 4;

[0033] (5) Install the U-shaped channel steel 4 and the 10mm thick front stop plate 7 containing through the circular hole with a screw, cooperate with the closed sliding block 2 to form a square mold for pouring the sample, and adjust the position of the closed sliding block 2 in the U-shaped channel steel 4 according to the height of the sample;

[0034] (6) In the 10mm thick front stop plate 7 containing pre-prepared round hole, pass the magnetic plug B12 (2mm x 15mm x 115mm) through the 10mm thick joint disc containing the same pre-prepared joint, and connect the two magnetic plugs by using the magnetic property of the plug;

[0035] (7) Select cement, lime, and sand as the three materials, and determine the mass ratio of water, gypsum, and fine sand as 6:7:3 according to the simulated material, and mix them uniformly as slurry;

[0036] (8) Take an appropriate amount of prepared slurry and pour the model from the two square injection ports 6 of the front stop plate 7. After pouring is completed, use a wooden hammer to gently shake the U-shaped channel steel 4 to eliminate air bubbles in the slurry;

[0037] (9) After 1 hour of initial setting, remove the closed sliding block 2 and the front and back stop plates containing pre-prepared circular grooves, and slowly pull out the magnetic plugs A and B from the front and back of the test piece;

[0038] ​​(10) After 24 hours of solidification, the anchor rod 3 and the joint sample are taken out from the straight groove 9 on the two sides of the U-shaped channel steel 4, the joint rock mass sample anchored by the anchor rod 3 is obtained, the cast sample is placed in a dry and ventilated place, indoor curing is carried out for 21 days, the joint anchoring body sample is obtained, and subsequent tests can be carried out.

[0039] (11) After one experiment is completed, the rock-like material on the U-shaped channel steel 4 is cleaned, the above steps (1) to (9) are repeated, and the joint angle and the number of the joint disc 8 containing prefabricated joints are changed in step (2), so that the sample under different joint distribution forms can be obtained, and the angle of the magnetic insert piece A11 and the anchor rod 3 is adjusted in step (3), so that the joint anchoring body sample with different anchoring angles and joint angles can be obtained.

[0040] The joint anchoring body pouring device and the use method thereof in the application solve the problem that when the control mechanism of the anchor rod on the joint rock mass deformation and damage is explored, multiple rock-like samples intersected by the anchor rod and the joint need to be prepared for tests, and the anchoring angle of the anchor rod and the angle of the prefabricated joint need to be adjusted according to different research objects in the experimental process. The U-shaped channel steel, the front and rear baffles and the closed sliding block can form a mold for pouring the test piece. The disc with the prefabricated joint is arranged in the circular groove of the front and rear baffles, the magnetic insert pieces A and B are fixed at the prefabricated joint seam, the prefabricated joint is formed during pouring of the test piece, and the joint rock mass with different angles can be obtained by rotating the disc. The anchor rod passes through the straight groove on the side of the U-shaped channel steel and the groove hole of the magnetic insert piece, and the anchor rod intersecting with the joint is formed during pouring of the test piece. After the slurry solidifies, the closed sliding block and the front and rear baffles are disassembled, the magnetic insert piece A and the magnetic insert piece B are taken out from the test piece by using the magnetism of the insert pieces, and the prefabricated joint anchored by the anchor rod can be formed. The joint anchoring body with different anchor rod angles can be obtained by adjusting the position of the anchor rod in the groove hole of the magnetic insert piece. The anchor rod and the sample are taken out from the straight groove on the two sides of the U-shaped channel steel, and the joint rock mass sample anchored by the anchor rod is obtained. The method can adjust the angle and distribution of the joint disc arranged in the circular groove of the front and rear baffles, and multiple test samples with the anchor rod and the joint can be obtained simply and quickly, which provides an effective test technology and test method for exploring the control mechanism of the anchor rod on the joint rock mass deformation and damage.

[0041] The technical features of the above-described embodiments can be combined in any manner, and to make the description concise, all possible combinations of the technical features in the above-described embodiments are not described, but as long as the combinations of the technical features do not exist, they should be considered as the scope of the description.

[0042] The above embodiments only express the implementation of the present application, which is described in more detail and in more detail, but cannot be understood as a limitation on the scope of the patent of the present application. It should be noted that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A device for joint anchoring body casting, characterized by: The utility model relates to a prefabricated joint anchorage body test device, including back baffle, U groove, closed sliding block, magnetic insert, anchor rod, front baffle and joint disc, U groove is arranged between back baffle and front baffle, and the joint disc is rotatably arranged on back baffle and front baffle, and the prefabricated joint seam for inserting magnetic insert is arranged on the joint disc, the magnetic insert includes magnetic insert A and magnetic insert B, the connecting place of magnetic insert A and magnetic insert B forms magnetic insert slot, the opening side of U groove is slidably provided with closed sliding block, and the parallel end of U groove is provided with side straight slot, and the anchor rod is inserted in side straight slot and magnetic insert slot.

2. A device for joint anchoring casting according to claim 1, characterized in that: A sealing gasket is arranged between the back baffle and the U-shaped channel.

3. A device for jointed rock mass anchoring pouring according to claim 1, characterized in that: The front baffle is provided with a grouting hole.

4. A method of using the apparatus for pouring of joint anchoring bodies according to any one of claims 1-3, characterized in that: The utility model relates to a prefabricated joint anchorage body test device, including the following steps: (1) first, the transparent adhesive tape is used to be closely attached to the groove from left side, middle and right side of U groove inside in proper order, and the side straight slot of both sides of U groove is closed, which is used for preventing slurry from leaking and avoiding that the model is damaged due to excessive friction between slurry and U groove after solidification in subsequent demolding; (2) Use The screws will connect the U-shaped channel steel and contain The rear baffle is fixed with a 10mm thick pre-drilled round hole, and a 10mm deep hole is reserved inside the 20mm thick rear baffle. Inside the circular groove, install 10mm thick pre-jointed... Rotate the jointing disc to adjust the joint angle. After adjustment, insert a 2mm×15mm×35mm magnetic insert A at the pre-fabricated joint position. (3) The back baffle is placed horizontally on the horizontal plane as the bottom of the mold. A 35mm wide sealing gasket is placed on the part where the upper edge of the back baffle coincides with the U-shaped channel steel 4, and the sealing gasket is provided with the same number of holes as the side edges of the U-shaped channel steel Pre-drilled holes are used to prevent slurry leakage, and then the U-shaped channel steel is placed; (4) Used to simulate anchor bolts The fully threaded 304 stainless steel rod is passed through the transparent tape of the straight groove on the side of the U-shaped channel steel and the pre-drilled hole at the end of the magnetic insert A. The position and angle of the stainless steel rod are fixed with nuts on the side of the U-shaped channel steel. After the stainless steel rod is fixed, the remaining slots on the side of the U-shaped channel steel are sealed with sealant. (5) Use The screws will connect the U-shaped channel steel and contain A 10mm thick front baffle with a through circular hole is installed, and together with the closed slider, a square mold for casting the sample is formed. The position of the closed slider inside the U-shaped channel steel is adjusted according to the height of the sample. (6) In a 10mm thick container The front baffle with pre-drilled round holes allows a 2mm×15mm×115mm magnetic insert B to pass through a 10mm thick baffle containing the same pre-drilled joints. The jointing disc uses magnetic inserts to connect two magnetic inserts; (7) selecting cement, lime and sand three materials, according to the simulated material, the mass ratio of water, gypsum and fine sand is 6:7:3, and the mixture is uniformly mixed as slurry; (8) taking the appropriate slurry prepared, the model is poured from the two square grouting holes of front baffle, after pouring, the U groove is lightly shaken using a wooden hammer, and the air bubbles in the slurry are eliminated; (9) after 1 hour initial setting, the closed sliding block and the front and back baffle containing the prefabricated circular groove are removed, and the magnetic insert A and the magnetic insert B are slowly pulled out from the front and back of the test piece; (10) after solidifying for 24 hours, the joint sample with anchor rod is pulled out from the side straight slot of both sides of U groove, the joint rock mass sample anchored by the anchor rod is obtained, the poured test piece is placed in a dry and ventilated place, and indoor curing is carried out for 21 days, the joint anchorage body sample is obtained, and subsequent test can be carried out; (11) after completing one experiment, the rock-like material on the U groove is cleaned, the above steps (1) to (9) are repeated, the joint angle and the number of prefabricated joint discs are changed in step (2), the test piece under different joint distribution forms is obtained, the angle of magnetic insert A and anchor rod is adjusted in step (3), and the joint anchorage body test piece with different anchoring angles and joint angles is obtained.

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