CN111307547A - Device and method for manufacturing original rock structural surface sample - Google Patents
Device and method for manufacturing original rock structural surface sample Download PDFInfo
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- CN111307547A CN111307547A CN202010154052.XA CN202010154052A CN111307547A CN 111307547 A CN111307547 A CN 111307547A CN 202010154052 A CN202010154052 A CN 202010154052A CN 111307547 A CN111307547 A CN 111307547A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/36—Embedding or analogous mounting of samples
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
- G01N2001/2873—Cutting or cleaving
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/36—Embedding or analogous mounting of samples
- G01N2001/366—Moulds; Demoulding
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/026—Specifications of the specimen
- G01N2203/0298—Manufacturing or preparing specimens
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Abstract
The invention provides a device and a method for manufacturing a sample of an original rock structural surface, wherein a bearing platform is used for bearing a structural surface bottom wall, a first level gauge is used for being installed on the side wall of the structural surface bottom wall, and a plurality of first height adjusting pieces are used for adjusting the first level gauge to be in a horizontal state; the lower disc mould and the upper disc mould are arranged in a square tube and extend along the vertical direction, the lower disc mould is used for being arranged on the periphery of the lower disc of the structural surface, and the lower fixing piece is used for fixing the lower disc of the structural surface; the supporting component comprises a supporting rod and a supporting cap, the supporting rod extends upwards and downwards, the supporting rod and the supporting cap are fixed on the outer side wall of the lower disc mold and the outer side wall of the upper disc mold respectively, the supporting rod is matched with the supporting cap to install the upper disc mold above the lower disc mold, so that the upper disc mold is opposite to the lower disc mold, and the upper fixing piece is used for fixing the upper disc on the structural plane. The technical scheme provided by the invention has the beneficial effects that: on the premise of ensuring that the upper disc of the sample structural surface is matched with the lower disc of the structural surface, the problem of how to determine the horizontal state of the structural surface is solved.
Description
Technical Field
The invention relates to the technical field of rock structural surface shear test devices, in particular to a device and a method for manufacturing an original rock structural surface sample.
Background
In the indoor direct shear test of the original rock structural surface, the size of a sample is generally required to meet a certain standard. However, due to the limitation of sampling conditions of the field original rock, the sample size which completely meets the requirements of indoor tests cannot be obtained, so that the rock needs to be reprocessed. The general method is to pour concrete around and at the bottom of the rock mass to expose the upper structural surface and form a sample of standard dimensions.
The prior art provides a manufacturing mold and a manufacturing method aiming at an original rock structural surface sample, but the practicability is poor. The proposed method for filling protective materials (wood chips) near the structural surface is theoretically feasible, but in practice, after concrete is poured on the upper parts of the wood chips, cement mortar penetrates into the wood chips to the vicinity of the structural surface and is solidified into blocks, so that the state of the structural surface is seriously influenced, and finally sample preparation failure is caused.
In addition, in the direct shear test of the rock structural plane, a normal force is required to be applied to the structural plane. This requires that the structural plane be horizontally placed during the sample preparation process, i.e. the bottom plane of the sample and the structural plane are kept horizontal. In the actual sample preparation process, a visual level method is adopted at present due to the lack of corresponding equipment and sample preparation standards. In addition, no specific measure has been proposed for the method of determining the horizontal state of the structural surface in the test because the structural surface is uneven.
Disclosure of Invention
In view of this, embodiments of the present invention provide a device and a method for manufacturing a raw rock structural surface sample, which solve the problem of how to determine the horizontal state of a structural surface on the premise of ensuring that an upper plate of the sample structural surface is matched with a lower plate of the structural surface.
The embodiment of the invention provides a device for manufacturing a sample of an original rock structural surface, which comprises a bearing table, a first level, a plurality of first height adjusting pieces, a lower disc die, an upper disc die, a lower fixing piece, a plurality of supporting components and an upper fixing piece, wherein the bearing table is provided with a plurality of first height adjusting pieces;
the bearing platform is used for bearing a structural surface bottom wall, the first level gauge is used for being installed on the side wall of the structural surface bottom wall and is parallel to an original rock structural surface fitting plane, and the plurality of first height adjusting pieces are fixedly installed at the bottom of the bearing platform along the annular interval and are used for adjusting the first level gauge to be in a horizontal state;
the lower disc mould and the upper disc mould are arranged in a square tube and extend along the vertical direction, the cross section of the lower disc mould is matched with a standard sample, the lower disc mould is used for being installed on the periphery of the lower disc of the structural surface, and the lower fixing piece is movably installed on the lower disc mould and is provided with a fixing position for fixing the lower disc of the structural surface in the lower disc mould and an unlocking position far away from the lower disc of the structural surface;
the supporting component comprises a supporting rod and a supporting cap, the supporting rod extends in the vertical direction, the supporting rod and the supporting cap are fixed on the outer side wall of the lower disc mold and the outer side wall of the upper disc mold respectively, the supporting rod is matched with the supporting cap to install the upper disc mold above the lower disc mold, so that the upper disc mold is opposite to the lower disc mold, and the upper fixing part is movably installed on the upper disc mold and is provided with a fixing position for fixing the upper disc of the structural surface in the upper disc mold and an unlocking position for keeping away from the upper disc of the structural surface.
Furthermore, the lower fixing part comprises a plurality of first fixing nuts and a plurality of first screw rods, the first fixing nuts are fixedly connected to the outer side wall of the lower disc mold and located above the lower disc mold, the first screw rods are respectively in one-to-one threaded connection with the first fixing nuts, and the inner ends of the first screw rods are used for abutting against the lower disc of the structural surface so as to fix the lower disc of the structural surface in the lower disc mold.
Furthermore, the lower fixing part comprises a plurality of second fixing nuts and a plurality of second screw rods, the second fixing nuts are fixedly connected to the outer side wall of the upper disc mold and located below the upper disc mold, the second screw rods are respectively in one-to-one threaded connection with the second fixing nuts, and the inner ends of the second screw rods are used for abutting against the upper disc of the structural surface so as to fix the upper disc of the structural surface in the upper disc mold.
Further, the lower disc die comprises two side plates with L-shaped cross sections, and the end parts of the two side plates are connected through bolts; and/or the presence of a gas in the gas,
the upper plate die comprises two side plates with L-shaped cross sections, and the end parts of the two side plates are connected through bolts.
Further, still include the workstation, the workstation is both ends open-ended tube-shape setting and follows horizontal extension, the workstation top surface is straight setting with the bottom surface, the plummer with first altitude mixture control spare is located in the workstation, the workstation top is run through and is equipped with the perforation, the perforation is used for the plummer passes, lower wall mould demountable installation in on the workstation, the workstation bottom is equipped with a plurality of second altitude mixture control spare that set up along the annular interval, be equipped with the second spirit level on the workstation, the second spirit level with the workstation top surface is parallel, the second altitude mixture control spare be used for with the second spirit level is adjusted to the horizontality.
Furthermore, the top surface of the workbench protrudes upwards to form two protruding parts which are respectively positioned at two sides of the through hole, and the lower disc die is used for being buckled between the two protruding parts.
Furthermore, a lifting platform is fixed on the bearing platform and used for bearing the structural surface lower disc.
Furthermore, the lifting platform is fixedly arranged on the rotating disc.
The embodiment of the invention provides a manufacturing method, which uses the original rock structural surface sample manufacturing device and comprises the following steps:
s1, cutting the periphery and the bottom of the original rock to roughly process the original rock;
s2, placing the structural surface footwall on a horizontal plane to enable the structural surface to face upwards, performing appearance surface scanning on the structural surface footwall to obtain a three-dimensional model of the structural surface footwall, independently extracting a three-dimensional point cloud data set of the structural surface footwall by adopting three-dimensional point cloud processing software, performing space discrete point plane fitting on the three-dimensional point cloud data set of the structural surface to obtain an equation of a fitting plane of the structural surface, and simulating the fitting plane of the original rock structural surface;
s3, overlapping and displaying the fitting plane and the three-dimensional model of the structural surface footwall to obtain an intersection line of the fitting plane and the side face of the three-dimensional model, marking a marking line on the side face of the structural surface footwall, wherein the marking line is parallel to the intersection line at the actual corresponding position of the structural surface;
s4, placing a structural surface bottom plate on a bearing table, installing a first level gauge on the side wall of the structural surface bottom plate, wherein the first level gauge is parallel to the marking line so that the first level gauge is parallel to a fitting plane of the original rock structural surface, and adjusting the first level gauge to be in a horizontal state by adjusting a plurality of first height adjusting pieces;
s5, a lower disc mold is placed on the periphery of a structural surface lower disc, the structural surface lower disc is fixed in the lower disc mold through a lower fixing piece, a structural surface upper disc is placed on the structural surface lower disc, an upper disc mold is placed on the periphery of the structural surface upper disc, the upper disc mold is installed on the lower disc mold through the matching of the supporting rods and the supporting caps, and the structural surface upper disc is fixed in the upper disc mold through an upper fixing piece;
s6, overturning the upper disc mould and the structural surface upper disc, filling concrete and slightly vibrating between the upper disc mould and the structural surface upper disc, curing in a proper environment, removing the upper disc mould after curing is finished, taking the lower disc mould and the structural surface lower disc, filling concrete and slightly vibrating between the lower disc mould and the structural surface lower disc, curing in a proper environment, and removing the lower disc mould after curing is finished.
The original rock structural surface sample manufacturing device further comprises a workbench, the workbench is in a cylindrical shape with openings at two ends and extends along the transverse direction, the top surface and the bottom surface of the workbench are in a straight arrangement, the bearing platform and the first height adjusting piece are located in the workbench, a through hole is formed in the top of the workbench in a penetrating mode, the bearing platform penetrates through the through hole, the lower disc mold is detachably mounted on the workbench, a plurality of second height adjusting pieces are arranged at the bottom of the workbench at intervals in an annular mode, a second level is arranged on the workbench and is parallel to the top surface of the workbench, and the second height adjusting pieces are used for adjusting the second level to a horizontal state;
in step S5, "placing the bottom wall mold on the periphery of the bottom wall of the structural surface" is specifically to place the bottom wall mold on the workbench, and adjust the second level gauge to a horizontal state by adjusting the plurality of second height adjusting members, so as to place the bottom wall mold on a horizontal plane and on the periphery of the bottom wall of the structural surface.
The technical scheme provided by the embodiment of the invention has the following beneficial effects: through going out the fitting plane to former rock structure face fitting, place the structural plane lower wall on the plummer, utilize first altitude mixture control spare to make the fitting plane of former rock structure face be in the horizontality to under the identical prerequisite of assurance sample structural plane hanging wall and structural plane lower wall, guarantee simultaneously that the structural plane is in the horizontality, make when rock mass structural plane direct shear is experimental, be convenient for exert normal force to the structural plane.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of a device for manufacturing a raw rock structural surface sample provided by the invention;
FIG. 2 is a front view of the rock structural surface specimen fabricating apparatus of FIG. 1;
FIG. 3 is a top view of the lower plate mold, lower fixture, support bar and structural surface of the lower plate of FIG. 1;
FIG. 4 is a bottom view of the chassis and the second height adjustment member of FIG. 1;
FIG. 5 is a schematic diagram of the results of surface fitting of the original rock structure.
In the figure: the device comprises a bearing table 1, a first level 2, a first height adjusting piece 3, a screw rod 31, a supporting cylinder 32, a supporting piece 33, a lower disc mold 4, an upper disc mold 5, a lower fixing piece 6, a first fixing nut 61, a first screw rod 62, a supporting assembly 7, a supporting rod 71, a supporting cap 72, an upper fixing piece 8, a second fixing nut 81, a second screw rod 82, a side plate 9, a bolt 91, a rubber pad 10, a workbench 11, a through hole 12, a second height adjusting piece 13, a supporting screw 131, a rotating nut 132, a second level 14, a protruding part 15, a protrusion 16, a bottom disc 17, a through hole 171, a lifting table 18, a rotating disc 19, a scale marking part 20, a structural surface upper disc 21, a structural surface lower disc 22, a structural surface 23 and a marking line 24.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be further described with reference to the accompanying drawings.
Referring to fig. 1 to 4, an embodiment of the present invention provides an original rock structural surface sample manufacturing apparatus, including a bearing platform 1, a first level 2, a plurality of first height adjusting members 3, a lower disc mold 4, an upper disc mold 5, a lower fixing member 6, a plurality of supporting assemblies 7, and an upper fixing member 8.
The plummer 1 is used for bearing structural plane lower wall 22, first spirit level 2 be used for install in structural plane lower wall 22 lateral wall, and parallel with former rock structural plane 23 fitting plane, it is a plurality of first height regulating part 3 sets up fixed mounting along annular interval in plummer 1 bottom, be used for with first spirit level 2 adjusts to the horizontality. The first height adjusting member 3 is provided in various ways, and in this embodiment, the first height adjusting member 3 includes a screw 31, a support cylinder 32 and a support member 33, the screw 31, the supporting cylinder 32 and the supporting piece 33 all extend along the vertical direction, one end of the supporting cylinder 32 is provided with an opening, the inner side wall is provided with internal threads, the screw 31 is in threaded connection with the supporting cylinder 32, the vertical height of the first height adjusting piece 3 can be adjusted by rotating the supporting cylinder 32, thereby adjusting the inclination angle of the bearing platform 1, and for the convenience of adjustment, the supporting member 33 can be axially and rotatably mounted at the other end of the supporting cylinder 32, which is far away from the screw 31, and in the embodiment, the upper end of the supporting cylinder 32 is open, the supporting member 33 can be axially and rotatably mounted at the lower end of the supporting cylinder 32, the screw 31 is in threaded connection with the upper end of the supporting cylinder 32, please refer to fig. 3, and the bottom of the plummer 1 is provided with three first height adjusting members 3.
The lower disc mold 4 and the upper disc mold 5 are both square tubes and extend in the vertical direction, the cross sections of the lower disc mold 4 and the upper disc mold 5 are matched with a standard sample, the lower disc mold 4 is used for being installed on the periphery of the structural surface lower disc 22, in the embodiment, please refer to fig. 3, the lower disc mold 4 comprises two side plates 9, the cross sections of the side plates 9 are arranged in an L shape, and the end parts of the side plates 9 are connected through bolts 91. The upper disc mold 5 is used for being installed on the periphery of the upper disc 21 on the structural plane, in the embodiment, the upper disc mold 5 comprises two side plates 9 with cross sections in L-shaped arrangement, and the end parts of the two side plates 9 are connected through bolts 91, so that the lower disc mold 4 and the upper disc mold 5 can be conveniently detached.
Referring to fig. 1 and 3, the lower fixing member 6 is movably mounted on the lower disc mold 4, and has a fixing position for fixing the structural surface lower disc 22 in the lower disc mold 4 and an unlocking position away from the structural surface lower disc 22. Specifically, the lower fixing member 6 includes a plurality of first fixing nuts 61 and a plurality of first screws 62, the plurality of first fixing nuts 61 are fixedly connected to the outer side wall of the lower disc mold 4 and located above the lower disc mold 4, the first screws 62 are respectively in one-to-one threaded connection with the first fixing nuts 61, and the inner ends of the first screws 62 are used for abutting against the structural surface lower disc 22 so as to fix the structural surface lower disc 22 in the lower disc mold 4. By rotating the first screw 62, the inner end of the first screw 62 abuts against the structural surface lower disc 22, so that the structural surface lower disc 22 can be fixed in the lower disc mold 4, and by rotating the first screw 62 in the opposite direction, the first screw 62 is far away from the structural surface lower disc 22, so that the lower fixing member 6 can be located at the unlocking position, and the structural surface lower disc 22 can be conveniently detached from the lower disc mold 4. The inner end of the first screw 62 is connected with a rubber pad 10, the rubber pad 10 is used for abutting against the structural surface lower disc 22, and friction force between the first screw 62 and the structural surface lower disc 22 can be increased, so that stability of fixing the structural surface lower disc 22 in the lower disc mold 4 is enhanced.
Referring to fig. 1 and 2, the support assembly includes a support rod 71 and a support cap 72, the support rod 71 extends in an up-down direction, the support rod 71 and the support cap 72 are fixed on an outer sidewall of the lower plate mold 4 and an outer sidewall of the upper plate mold 5, respectively, the support rod 71 and the support cap 72 cooperate to mount the upper plate mold 5 above the lower plate mold 4, so that the upper plate mold 5 is opposite to the lower plate mold 4.
Referring to fig. 1 and 3, the upper fixing member 8 is movably mounted on the upper disc mold 5, and has a fixing position for fixing the upper disc 21 on the structural surface in the upper disc mold 5 and an unlocking position away from the upper disc 21 on the structural surface. Specifically, the upper fixing member 8 includes a plurality of second fixing nuts 81 and a plurality of second screws 82, the plurality of second fixing nuts 81 are fixedly connected to the outer side wall of the upper disc mold 5 and located below the upper disc mold 5, the second screws 82 are respectively in one-to-one threaded connection with the second fixing nuts 81, and the inner ends of the second screws 82 are used for abutting against the upper disc 21 on the structural surface, so that the upper disc 21 on the structural surface is fixed in the upper disc mold 5. By rotating the second screw 82, the inner end of the second screw 82 is made to abut against the structural surface upper plate 21, so that the structural surface upper plate 21 is fixed in the upper plate mold 5, and by rotating the second screw 82 in the opposite direction, the second screw 82 is made to be away from the structural surface upper plate 21, so that the upper fixing member 8 is located at the unlocking position, and the structural surface upper plate 21 is conveniently detached from the upper plate mold 5. The inner end of the second screw 82 is connected with a rubber pad 10, the rubber pad 10 is used for abutting against the structural surface upper disc 21, and the friction force between the second screw 82 and the structural surface upper disc 21 can be increased, so that the stability of fixing the structural surface upper disc 21 in the upper disc mold 5 is enhanced.
In order to ensure that the lower disc mold 4 is placed on a horizontal plane, the original rock structural surface sample manufacturing device further comprises a workbench 11, the workbench 11 is in a cylindrical shape with two open ends and extends along the transverse direction, the top surface and the bottom surface of the workbench 11 are in a straight arrangement, the bearing platform 1 and the first height adjusting piece 3 are positioned in the workbench 11, a through hole 12 penetrates through the top of the workbench 11, the through hole 12 is used for the bearing platform 1 to pass through, the lower disc mold 4 is detachably mounted on the workbench 11, a plurality of second height adjusting pieces 13 arranged along an annular interval are arranged at the bottom of the workbench 11, a second level 14 is arranged on the workbench 11, in the embodiment, the bottom wall of the workbench 11 protrudes upwards to form a protrusion 16, the second level 14 is fixed on the protrusion 16, and a chassis 17 is arranged between the bottom wall of the workbench 11 and the second height adjusting piece 13, a through hole (not marked in the figure) for the protrusion 16 to pass through is arranged in the middle of the bottom plate 17.
The second level 14 is parallel to the top surface of the table 11, and the second height adjuster 13 is used to adjust the second level 14 to a horizontal state. The second height adjustment member 13 is provided with a plurality of setting manners, in this embodiment, the second height adjustment member 13 includes a plurality of positioning holes (not marked in the figure) and a rotating nut 132, a plurality of positioning holes (not marked in the figure) are provided at the bottom of the working table 11 in a penetrating manner, the plurality of positioning holes are in one-to-one correspondence with the plurality of positioning holes, the rotating nut 132 is screwed on each of the plurality of positioning holes 131, the positioning holes are passed through the upper end of the supporting screws 131, so that the bottom of the working table 11 is abutted to the top of the rotating nut 132, the rotating nut 132 is rotated, so as to adjust the height of the rotating nut 132, and further adjust the inclination angle of the working table.
In this embodiment, the top surface of the working platform 11 protrudes upwards to form two protruding portions 15 respectively located at two sides of the through hole 12, and the lower disc mold 4 is fastened between the two protruding portions 15, so that the lower disc mold 4 can be mounted and dismounted conveniently.
Further, a lifting table 18 is fixed on the bearing table 1, the lifting table 18 is used for bearing a structural surface lower disc 22, the through hole 12 is used for the lifting table 18 to penetrate through, the lifting table 18 is the prior art, and therefore no specific description is given, and the lifting table 18 can be used for adjusting the height of the structural surface lower disc 22, so that the original rock structural surface 23 is located between the lower disc mold 4 and the upper disc mold 5.
Because former rock structure face 23 shear strength has anisotropy, adjusts the direction of structure face 23 as required in the experiment the plummer 1 with be equipped with rolling disc 19 between the elevating platform 18, but rolling disc 19 axial rotation install in on the plummer 1, elevating platform 18 fixed mounting in on the rolling disc 19, rotate rolling disc 19 and can rotate former rock structure face 23, 19 outer peripheries of rolling disc are equipped with scale mark portion 20, are convenient for monitor and adjust the turned angle of rolling disc 19.
The embodiment of the invention also provides a manufacturing method, which uses the original rock structural surface sample manufacturing device and comprises the following steps:
s1, cutting the periphery and the bottom of the original rock to roughly process the original rock, enabling the structural surface 23 to be positioned in the middle of the original rock as much as possible, enabling the side surface to be vertical to the structural surface 23, enabling the bottom surface to be parallel to the structural surface 23, enabling the volumes of an upper tray and a lower tray of the structural surface 23 of the original rock to be similar as much as possible and not larger than the size of a standard sample required by a test, wherein the sizes of the standard sample are 15cm multiplied by 15cm, 10cm multiplied by 10cm and 5cm multiplied by 5 cm.
S2, placing the structural surface footwall 22 on a horizontal plane, with the structural surface 23 facing upward, and performing appearance surface scanning on the structural surface footwall 22 to obtain a three-dimensional model of the structural surface footwall 22, specifically, performing appearance surface scanning on the original rock by using a three-dimensional laser scanning or photogrammetry method. A three-dimensional point cloud processing software (such as clouddcompare, Bentley Pointools, and the like) is adopted to independently extract a three-dimensional point cloud data set of the structural surface 23 of the structural surface footwall 22, the three-dimensional point cloud data set is output in the form of (x, y, z), the three-dimensional point cloud data set of the structural surface 23 is subjected to space discrete point plane fitting, an equation of a fitting plane of the structural surface 23 is obtained, and the fitting plane of the original rock structural surface 23 is simulated (see fig. 5).
S3, displaying the fitting plane and the three-dimensional model of the structural surface lower plate 22 in an overlapping mode to obtain an intersection line of the fitting plane and the side face of the three-dimensional model, marking a marking line 24 on the side face of the structural surface lower plate 22, and enabling the marking line 24 to be parallel to the intersection line at the actual corresponding position of the structural surface 23.
S4, placing the structural surface bottom wall 22 on the bearing platform 1, specifically, placing the structural surface bottom wall 22 on the lifting platform 18, installing the first level 2 on the sidewall of the structural surface bottom wall 22, and being parallel to the mark line 24, so that the first level 2 is parallel to the fitting plane of the original rock structural surface 23, and adjusting the first level 2 to a horizontal state by adjusting the first height adjusting member 3.
S5, placing the bottom wall mold 4 on the periphery of the structural surface bottom wall 22, specifically, placing the bottom wall mold 4 on the workbench 11, and fastening the bottom wall mold 4 between the two protruding portions 15, and adjusting the second level gauge 14 to a horizontal state by adjusting the plurality of second height adjusting members 13, so as to place the bottom wall mold 4 on a horizontal plane and on the periphery of the structural surface bottom wall 22. The structural surface lower disc 22 is fixed in the lower disc mold 4 by the lower fixing piece 6, the structural surface upper disc 21 is placed on the structural surface lower disc 22, then the upper disc mold 5 is placed on the periphery of the structural surface upper disc 21, the upper disc mold 5 is installed on the lower disc mold 4 through the matching of the support rod 71 and the support cap 72, and the structural surface upper disc 21 is fixed in the upper disc mold 5 by the upper fixing piece 8.
S6, turning the upper disc mold 5 and the structural surface upper disc 21, filling concrete and slightly vibrating between the upper disc mold 5 and the structural surface upper disc 21, curing in a suitable environment, removing the upper disc mold 5 after curing is finished, removing the lower disc mold 4 and the structural surface lower disc 22, filling concrete and slightly vibrating between the lower disc mold 4 and the structural surface lower disc 22, curing in a suitable environment, and removing the lower disc mold 4 after curing is finished.
According to the technical scheme provided by the invention, a fitting plane is fitted to an original rock structural surface 23, a structural surface lower disc 22 is placed on a lifting table 18, the height of the structural surface lower disc 22 is adjusted by the lifting table 18, the structural surface lower disc 22 is rotated by a rotating disc 19, the fitting plane of the original rock structural surface 23 is in a horizontal state by a first height adjusting part 3, a lower disc mold 4 is placed on a working table 11, the working table 11 is in a horizontal state by a second height adjusting part 13, and the lower disc mold 4 is in a horizontal state, so that the structural surface 23 is ensured to be in a horizontal state on the premise of ensuring that an upper disc 21 of a sample structural surface is matched with the structural surface lower disc 22, and a normal force is conveniently applied to the structural surface 23 during a direct shear test of the rock structural surface.
In this document, the terms front, back, upper and lower are used to define the components in the drawings and the positions of the components relative to each other, and are used for clarity and convenience of the technical solution. It is to be understood that the use of the directional terms should not be taken to limit the scope of the claims.
The features of the embodiments and embodiments described herein above may be combined with each other without conflict.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. A device for manufacturing a sample of an original rock structural surface is characterized by comprising a bearing table, a first level, a plurality of first height adjusting pieces, a lower disc die, an upper disc die, a lower fixing piece, a plurality of supporting components and an upper fixing piece;
the bearing platform is used for bearing a structural surface bottom wall, the first level gauge is used for being installed on the side wall of the structural surface bottom wall and is parallel to an original rock structural surface fitting plane, and the plurality of first height adjusting pieces are fixedly installed at the bottom of the bearing platform along the annular interval and are used for adjusting the first level gauge to be in a horizontal state;
the lower disc mould and the upper disc mould are arranged in a square tube and extend along the vertical direction, the cross section of the lower disc mould is matched with a standard sample, the lower disc mould is used for being installed on the periphery of the lower disc of the structural surface, and the lower fixing piece is movably installed on the lower disc mould and is provided with a fixing position for fixing the lower disc of the structural surface in the lower disc mould and an unlocking position far away from the lower disc of the structural surface;
the supporting component comprises a supporting rod and a supporting cap, the supporting rod extends in the vertical direction, the supporting rod and the supporting cap are fixed on the outer side wall of the lower disc mold and the outer side wall of the upper disc mold respectively, the supporting rod is matched with the supporting cap to install the upper disc mold above the lower disc mold, so that the upper disc mold is opposite to the lower disc mold, and the upper fixing part is movably installed on the upper disc mold and is provided with a fixing position for fixing the upper disc of the structural surface in the upper disc mold and an unlocking position for keeping away from the upper disc of the structural surface.
2. The device for manufacturing a raw rock structural surface sample according to claim 1, wherein the lower fixing member includes a plurality of first fixing nuts and a plurality of first screws, the plurality of first fixing nuts are fixedly connected to the outer side wall of the lower disc mold and located above the lower disc mold, the first screws are respectively in one-to-one threaded connection with the first fixing nuts, and inner ends of the first screws are used for abutting against the structural surface lower disc so as to fix the structural surface lower disc in the lower disc mold.
3. The device for manufacturing a raw rock structural surface sample according to claim 1, wherein the lower fixing member includes a plurality of second fixing nuts and a plurality of second screws, the plurality of second fixing nuts are fixedly connected to the outer side wall of the upper disc mold and located below the upper disc mold, the second screws are respectively in one-to-one threaded connection with the second fixing nuts, and inner ends of the second screws are used for abutting against the structural surface upper disc so as to fix the structural surface upper disc in the upper disc mold.
4. The device for manufacturing a raw rock structural surface sample as claimed in claim 1, wherein the lower disc mold comprises two side plates with L-shaped cross sections, and the end parts of the two side plates are connected through bolts; and/or the presence of a gas in the gas,
the upper plate die comprises two side plates with L-shaped cross sections, and the end parts of the two side plates are connected through bolts.
5. The raw rock structure surface sample manufacturing device according to claim 1, further comprising a workbench, wherein the workbench is in a cylindrical shape with two open ends and extends in a transverse direction, the top surface and the bottom surface of the workbench are in a straight arrangement, the bearing table and the first height adjusting piece are located in the workbench, a through hole is formed in the top of the workbench in a penetrating mode, the through hole is used for the bearing table to pass through, the lower disc mold is detachably mounted on the workbench, a plurality of second height adjusting pieces are arranged at the bottom of the workbench at intervals in an annular mode, a second level gauge is arranged on the workbench and is parallel to the top surface of the workbench, and the second height adjusting pieces are used for adjusting the second level gauge to a horizontal state.
6. The original rock structure face sample manufacturing device according to claim 5, wherein the top surface of the workbench is upwardly protruded with two protrusions respectively located at two sides of the through hole, and the lower disc mold is used for being buckled between the two protrusions.
7. The device for manufacturing a raw rock structural surface sample according to claim 5, wherein a lifting table is fixed on the bearing table, and the lifting table is used for bearing a structural surface lower disc.
8. The device for manufacturing a raw rock structural surface sample according to claim 5, further comprising a rotating disc, wherein the rotating disc is axially and rotatably mounted on the bearing table, and the lifting table is fixedly mounted on the rotating disc.
9. A manufacturing method using the original rock structural surface sample manufacturing apparatus according to claim 1, comprising the steps of:
s1, cutting the periphery and the bottom of the original rock to roughly process the original rock;
s2, placing the structural surface footwall on a horizontal plane to enable the structural surface to face upwards, performing appearance surface scanning on the structural surface footwall to obtain a three-dimensional model of the structural surface footwall, independently extracting a three-dimensional point cloud data set of the structural surface footwall by adopting three-dimensional point cloud processing software, performing space discrete point plane fitting on the three-dimensional point cloud data set of the structural surface to obtain an equation of a fitting plane of the structural surface, and simulating the fitting plane of the original rock structural surface;
s3, overlapping and displaying the fitting plane and the three-dimensional model of the structural surface footwall to obtain an intersection line of the fitting plane and the side face of the three-dimensional model, marking a marking line on the side face of the structural surface footwall, wherein the marking line is parallel to the intersection line at the actual corresponding position of the structural surface;
s4, placing a structural surface bottom plate on a bearing table, installing a first level gauge on the side wall of the structural surface bottom plate, wherein the first level gauge is parallel to the marking line so that the first level gauge is parallel to a fitting plane of the original rock structural surface, and adjusting the first level gauge to be in a horizontal state by adjusting a plurality of first height adjusting pieces;
s5, a lower disc mold is placed on the periphery of a structural surface lower disc, the structural surface lower disc is fixed in the lower disc mold through a lower fixing piece, a structural surface upper disc is placed on the structural surface lower disc, an upper disc mold is placed on the periphery of the structural surface upper disc, the upper disc mold is installed on the lower disc mold through the matching of the supporting rods and the supporting caps, and the structural surface upper disc is fixed in the upper disc mold through an upper fixing piece;
s6, overturning the upper disc mould and the structural surface upper disc, filling concrete and slightly vibrating between the upper disc mould and the structural surface upper disc, curing in a proper environment, removing the upper disc mould after curing is finished, taking the lower disc mould and the structural surface lower disc, filling concrete and slightly vibrating between the lower disc mould and the structural surface lower disc, curing in a proper environment, and removing the lower disc mould after curing is finished.
10. The original rock structure surface sample manufacturing device according to claim 9, further comprising a workbench, wherein the workbench is in a cylindrical shape with two open ends and extends in a transverse direction, the top surface and the bottom surface of the workbench are in a straight arrangement, the loading platform and the first height adjusting member are located in the workbench, a through hole is formed in the top of the workbench in a penetrating manner, the loading platform penetrates through the through hole, the lower disc mold is detachably mounted on the workbench, a plurality of second height adjusting members are arranged at intervals in a ring shape at the bottom of the workbench, a second level is arranged on the workbench, the second level is parallel to the top surface of the workbench, and the second height adjusting members are used for adjusting the second level to a horizontal state;
in step S5, "placing the bottom wall mold on the periphery of the bottom wall of the structural surface" is specifically to place the bottom wall mold on the workbench, and adjust the second level gauge to a horizontal state by adjusting the plurality of second height adjusting members, so as to place the bottom wall mold on a horizontal plane and on the periphery of the bottom wall of the structural surface.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010154052.XA CN111307547A (en) | 2020-03-07 | 2020-03-07 | Device and method for manufacturing original rock structural surface sample |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010154052.XA CN111307547A (en) | 2020-03-07 | 2020-03-07 | Device and method for manufacturing original rock structural surface sample |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114878279A (en) * | 2022-06-01 | 2022-08-09 | 成都理工大学 | Rock sample manufacturing device and manufacturing method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114878279A (en) * | 2022-06-01 | 2022-08-09 | 成都理工大学 | Rock sample manufacturing device and manufacturing method thereof |
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