CN114858561A - Preparation test device for fracture-containing rock material and use method - Google Patents
Preparation test device for fracture-containing rock material and use method Download PDFInfo
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- CN114858561A CN114858561A CN202210807073.6A CN202210807073A CN114858561A CN 114858561 A CN114858561 A CN 114858561A CN 202210807073 A CN202210807073 A CN 202210807073A CN 114858561 A CN114858561 A CN 114858561A
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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
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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
- G01N1/36—Embedding or analogous mounting of samples
- G01N2001/366—Moulds; Demoulding
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Abstract
The invention discloses a preparation test device and a use method of a crack-containing rock material, wherein the preparation test device comprises a bottom plate, a static side plate and a dynamic side plate; the static side plate is fixed on the bottom plate, the edge end of the static side plate is connected with one edge of the triangular auxiliary baffle plate, and the other edge of the triangular auxiliary baffle plate is fixed on the bottom plate; the movable side plate is movably arranged on the bottom plate, and a crack accommodating cavity is formed between the movable side plate and the static side plate; at least one group of crack arrangement structures are arranged on the static side plate and the dynamic side plate; the crack arrangement structure comprises at least one group of crack structures, and the crack structures are positioned in the crack arrangement cavity; connecting pieces used for limiting the horizontal displacement of the movable side plate are arranged at the connecting parts between the static side plate and the movable side plate; the triangular auxiliary baffle plate is provided with at least two adjusting bolts, and the adjusting bolts penetrate through the triangular auxiliary baffle plate and are connected with the movable side plate in a contact mode. Compared with the traditional rock-like molding equipment, the invention has more flexible model size control capability, convenient mold removal, simple operation, long service life of the molding equipment and wide application range.
Description
Technical Field
The invention belongs to the technical field of rock material preparation, and particularly relates to a preparation test device for a rock material containing fractures and a using method of the preparation test device.
Background
Due to physical effects such as weathering and erosion and the influence of shear dislocation between jointed rock walls, the rock joints generate fillers with certain thickness to form filled rock joints, which are widely existed in natural rock bodies. Because the natural filling rock joint test piece has the defects of difficult on-site sampling, high cost and discreteness, and the thickness of the filling medium between the upper surface and the lower surface of the natural filling rock joint test piece is also very difficult to accurately measure. The method is a sample preparation method commonly adopted by a large number of rock joint test pieces required by the current rock mechanics field for obtaining indoor tests, and based on the similarity simulation theory, the rock-like materials prepared by gypsum, sand, cement and other materials in a laboratory instead of the original rock materials for remodeling the rock can effectively reproduce the mechanical characteristics research of the fractured rock under different fracture conditions, thereby providing scientific basis for the practical engineering application. The method has important practical significance for the research of the mechanical properties of rock materials containing various joint forms, so that the design of a mold for conveniently and quickly manufacturing the joint rock test piece is particularly critical.
Chinese patent CN106248449B, a mold for manufacturing a rock-like sample containing a non-through type crack, realizes the arrangement of a crack precast piece at any angle when the rock sample is at a fixed position through two groups of designed crack angle adjusting blocks, namely realizes the arrangement of a sheet-shaped crack at any angle at a certain fixed position.
Chinese patent application CN111665105A, a test device and method for realizing accurate control of degree of filling of rock-like rough joint test piece, provides a test device for accurately controlling degree of filling of rock-like rough joint test piece, after completing preparation work, respectively installs the upper half joint test piece and the lower half joint test piece, controls the thickness of filling medium between two parts of joints by a handle and a locking device, and displays the thickness of filling medium by a digital display dial indicator. However, the invention does not have good performance in controlling the shape of the fissure joint surface, and the control of the shape of the fissure joint surface is not mentioned.
The Chinese patent application CN111487114A discloses a joint rock manufacturing die and a method capable of adjusting the size of a test piece, and discloses the joint rock manufacturing die and the method capable of adjusting the size of the test piece.
The Chinese patent application CN112362442A, a model for manufacturing rock-like samples and a use method thereof, can prefabricate double-crack or multi-crack rock-like samples with different sizes and orientations and manufacture the model and the use method thereof, but can not control the size of a test piece.
In conclusion, the existing preparation of the rock material containing the cracks has special functions and purposes, but the applicability is not comprehensive enough, the rock material cannot be used for various cracks at will, the crack width of a pouring model is difficult to control, and meanwhile, few devices are used for realizing integration of model pouring and crack accurate filling.
Disclosure of Invention
The invention aims to provide a preparation test device and a use method of a fracture-containing rock material to solve the problem that the preparation applicability of the existing fracture-containing rock material is not comprehensive enough.
In order to achieve the purpose, the invention adopts the technical scheme that:
in a first aspect, a crack-containing rock material preparation test device comprises a bottom plate, a static side plate and a dynamic side plate; the static side plate is fixed on the bottom plate, the edge end of the static side plate is connected with one edge of the triangular auxiliary baffle plate, and the other edge of the triangular auxiliary baffle plate is fixed on the bottom plate; the movable side plate is movably arranged on the bottom plate, and a crack accommodating cavity is formed between the movable side plate and the static side plate; at least one group of crack arrangement structures are arranged on the static side plate and the dynamic side plate; the crack arrangement structure comprises at least one group of crack structures, and the crack structures are positioned in the crack arrangement cavity; connecting pieces used for limiting the horizontal displacement of the movable side plate are arranged at the connecting parts between the static side plate and the movable side plate; the triangular auxiliary baffle plate is provided with at least two adjusting bolts, and the adjusting bolts penetrate through the triangular auxiliary baffle plate and are connected with the movable side plate in a contact mode.
Furthermore, three first threaded holes are reserved in the triangular auxiliary baffle plate, and are respectively located at the triangular positions of the triangular auxiliary baffle plate; and the triangular auxiliary baffle plate is respectively fixedly connected with the static side plate and the bottom plate through the threaded matching of the three fixing bolts and the three first threaded holes.
Furthermore, the adjusting bolt comprises a threaded bolt, two groups of fixing screws, two groups of gaskets and a contact block; one end of the threaded bolt is positioned on the outer side of the triangular auxiliary baffle; the other end of the threaded bolt penetrates through a triangular auxiliary baffle plate which is pre-provided with a second threaded hole and is fixedly connected with a contact block, and the contact block is in contact connection with the movable side plate; and the threaded bolt is locked on the triangular auxiliary baffle plate through the matching of the two groups of gaskets and the fixing screw.
Furthermore, the connecting piece comprises a connecting plate, two connecting screws, a fixing screw and a gasket; two screw holes matched with the connecting screws are formed in the connecting plate; one end of the connecting plate is movably arranged on the track on one side of the static side plate through a connecting screw, and the other end of the connecting plate is fixed on the movable side plate through the matching of the connecting screw, the fixing screw and the gasket.
Further, the crack arrangement structure comprises a crack arrangement track, two threaded columnar supports and at least one group of crack structures;
the crack arrangement track is positioned above the movable side plate and the static side plate; one end of the threaded columnar support is fixed on one end of the crack mounting rail in a matched mode through a fixing screw and a gasket, and the other end of the threaded columnar support is fixed on the rail of the movable side plate in a matched mode through the fixing screw and the gasket; one end of the other threaded columnar support is fixed to the other end of the crack arrangement rail in a matched mode through a fixing screw and a gasket, and the other end of the threaded columnar support is fixed to the rail of the fixed side plate in a matched mode through the fixing screw and the gasket.
Further, the crack structure comprises a prefabricated crack steel plate and a clamp for clamping the prefabricated crack steel plate; the upper end of the clamp is connected with one end of a fixing screw, and the other end of the fixing screw is fixed on the crack arrangement track.
Further, the crack structure comprises at least two fixing strips and a prefabricated crack; one end of the fixing strip is fixed on the crack arrangement track, and the other end of the fixing strip is in threaded connection with a hole reserved in the prefabricated crack.
In a second aspect, the use method of the test device for preparing the fractured rock-like material comprises the steps of preparing a non-through fracture and preparing a through fracture.
Further, the method for manufacturing the non-through crack comprises the following steps:
s1, welding the static side plate on the bottom plate, and fixedly connecting the triangular auxiliary baffle plate with the static side plate and the movable side plate respectively through three fixing bolts;
s2, movably connecting the movable side plate with the fixed side plate by adopting two groups of connecting pieces to limit the horizontal movement of the movable side plate;
s3, arranging two groups of adjusting bolts on the triangular auxiliary baffle plate, wherein a contact block at the bottom of each adjusting bolt is in contact with the movable side plate to limit the movement of the movable side plate in the vertical direction;
s4, selecting the number of crack arrangement structures, and fixing crack arrangement tracks on the tracks of the movable side plate and the static side plate;
s5, arranging the crack structure in the crack arrangement cavity through the crack arrangement track, namely, connecting the upper end of the clamp with one end of a fixing screw, fixing the other end of the fixing screw on the crack arrangement track, and clamping the prefabricated crack steel plate in the clamp;
s6, matching pouring materials and pouring in layers, after 24 hours, sequentially removing the crack arrangement rails and the crack structures until all crack arrangement structures, the prefabricated crack steel plates and the clamps are removed, and continuing maintenance until the test piece is maintained;
and S7, removing the connecting piece, withdrawing the adjusting bolt until a space for removing the movable side plate is reserved between the contact block and the movable side plate, and taking out the rock-like test piece after removing the movable side plate.
Further, the manufacturing of the through crack comprises the following steps:
t1, welding the static side plate on the bottom plate, and fixedly connecting the triangular auxiliary baffle plate with the static side plate and the movable side plate respectively through three fixing bolts;
t2, movably connecting the movable side plate with the fixed side plate by adopting two groups of connecting pieces to limit the horizontal movement of the movable side plate;
t3, two groups of adjusting bolts are arranged on the triangular auxiliary baffle plate, and contact blocks at the bottoms of the adjusting bolts are in contact with the movable side plate to limit the movement of the movable side plate in the vertical direction;
t4, selecting the number of crack arrangement structures, and fixing crack arrangement rails on the rails of the movable side plate and the static side plate;
t5, arranging the crack structure in the crack arrangement cavity through the crack arrangement track, namely fixing one end of a fixing strip on the crack arrangement track, and connecting the other end of the fixing strip with a hole reserved on the prefabricated crack through a thread;
t6, matching pouring materials and performing layered pouring, after 24 hours, sequentially removing the crack arrangement rail and the crack structure until the crack arrangement structure, the fixing strips and the prefabricated cracks are removed, and continuing maintenance until the test piece is maintained;
t7, adjusting the connecting piece to a loose state, adjusting the connecting piece through an adjusting bolt, measuring the width of the crack simultaneously, filling the crack with a material when the crack reserved between the two rock test pieces reaches a preset value, removing the connecting piece after the crack is filled stably, withdrawing the adjusting bolt until a space for removing the movable side plate is reserved between the contact block and the movable side plate, and taking out the rock-like test piece after removing the movable side plate.
The preparation test device and the use method of the fracture-containing rock material provided by the invention have the following beneficial effects:
1. compared with the traditional rock-like molding equipment, the invention has more flexible model size control capability, convenient mold removal, simple operation, long service life of the molding equipment and wide application range.
2. According to the invention, through the crack arrangement structure, the prefabricated rock specimen can be installed with the non-through block-shaped cracks with any angle and quantity and the through cracks with any angle and shape at any position, and meanwhile, the use shape, quantity and combination mode of the prefabricated cracks can be flexibly selected according to the test requirements, so that the preparation of various complicated prefabricated rock joints can be better met.
3. The movable side plate has the characteristics of flexible movement and fixation, is suitable for prefabricated fracture molds with any thickness and size, and can be used for preparing rock-like joint test pieces with standard sizes; besides, the method can be used for pouring the rock-like test piece, the size of the test piece in the direction can be flexibly adjusted, and the method can also be used for accurately controlling the filling thickness of the through rock joints.
Drawings
FIG. 1 is a schematic structural diagram of a test device for preparing a fractured rock-like material according to the invention;
FIG. 2 is a schematic structural view of the device of the present invention when a through-crack is preformed;
FIG. 3 is a schematic view of a freely movably mounted fracture setting configuration of the apparatus of the present invention;
FIG. 4 is a schematic view of two types of fractures of the device of the present invention;
fig. 5 is a schematic structural view of an adjusting bolt of the device of the present invention.
FIG. 6 is a schematic view of a connecting member between a movable side plate and a stationary side plate of the device according to the present invention.
Wherein, 1, a bottom plate; 2. a static side plate; 3. a triangular auxiliary baffle plate; 4. a movable side plate;
5. adjusting the bolt; 5-1, a threaded bolt; 5-2, a contact block;
6. fixing the bolt;
7. a connecting member; 7-1, connecting plates; 7-2, connecting screws;
8-1, arranging a track in the crack; 8-2, supporting the screw thread column; 8-3, clamping; 8-4, prefabricating a fractured steel plate; 8-5, fixing strips; 8-6, and prefabricating cracks.
Detailed Description
The following description of the embodiments of the present invention is provided to facilitate the understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and it will be apparent to those skilled in the art that various changes may be made without departing from the spirit and scope of the invention as defined and defined in the appended claims, and all matters produced by the invention using the inventive concept are protected.
According to the first embodiment of the application, referring to fig. 1, the test device for preparing the crack-containing rock-like material comprises a bottom plate 1, a static side plate 2 and a movable side plate 4.
The static side plate 2 and the dynamic side plate 4 are provided with at least one group of crack arrangement structures, each crack arrangement structure comprises at least one group of crack structures, and each crack structure is located in a crack arrangement cavity.
The static side plate 2 is fixed on the bottom plate 1, the edge end of the static side plate 2 is connected with one edge of the triangular auxiliary baffle 3, and the other edge of the triangular auxiliary baffle 3 is fixed on the bottom plate 1; the movable side plate 4 is movably arranged on the bottom plate 1, and a crack settling cavity is formed between the movable side plate and the static side plate 2 and can contain a plurality of groups of crack structures.
The connecting parts between the static side plate 2 and the movable side plate 4 are provided with connecting pieces 7 for limiting the horizontal displacement of the movable side plate 4; the triangular auxiliary baffle 3 is provided with at least two adjusting bolts 5, and the adjusting bolts 5 penetrate through the triangular auxiliary baffle 3 and are connected with the movable side plate 4 in a contact manner.
The bottom plate 1, the static side plate 2, the triangular auxiliary baffle plate 3, the movable side plate 4, the adjusting bolts 5, the fixing bolts 6, the connecting pieces 7 and the crack arrangement structure are all made of high-strength stainless steel plates.
Specifically, referring to fig. 5, the adjusting bolt 5 has the following structure:
the adjusting bolt 5 comprises a threaded bolt 5-1, two groups of fixing screws, two groups of gaskets and a contact block 5-2, and one end of the threaded bolt 5-1 is positioned on the outer side of the triangular auxiliary baffle 3 so as to be convenient to operate; the other end of the threaded bolt 5-1 penetrates through a triangular auxiliary baffle 3 which is pre-provided with a second threaded hole and is fixedly connected with a contact block 5-2, and the contact block 5-2 is connected with a movable side plate 4 in a contact way; and the threaded bolt 5-1 is locked on the triangular auxiliary baffle 3 by the matching of the two groups of gaskets and the fixing screws.
During specific operation, two groups of large-diameter threaded bolts 5-1 penetrate through a triangular auxiliary baffle 3 which is provided with a second threaded hole in advance, the whole position of the adjusting bolt 5 is controlled by rotating the threaded bolts 5-1, then the whole position of the adjusting bolt 5 is fixed by two groups of fixing screws and two groups of matched gaskets, and the movable side plate 4 can be driven to move on the bottom plate 1 by the rotating push of the adjusting bolt 5, namely the movable side plate 4 and the static side plate 2 can be fixed in the vertical direction in the track range.
Referring to fig. 6, the structure of the connecting member 7 is:
the connecting piece 7 comprises a connecting plate 7-1, two connecting screws 7-2, a fixing screw and a gasket; two screw holes matched with the connecting screws 7-2 are formed in the connecting plate 7-1; one end of a connecting plate 7-1 is movably arranged on the track at one side of the static side plate 2 through a connecting screw 7-2, and the other end of the connecting plate 7-1 is fixed on the movable side plate 4 through the matching of the connecting screw 7-2, a fixed screw and a gasket.
During specific operation, the two groups of connecting pieces 7 can freely translate in the track range of the static side plate 2 along with the position adjustment of the dynamic side plate 4, so that the dynamic side plate 4 and the static side plate 2 can be fixed and limited in the horizontal direction in the track range.
Referring to fig. 3 and 4, the fracture setting structure includes a fracture setting rail 8-1, two threaded columnar stays 8-2, and at least one set of fracture structures.
The crack arrangement track 8-1 is positioned above the movable side plate 4 and the static side plate 2; one end of the threaded columnar support 8-2 is fixed on one end of the crack mounting rail 8-1 in a matched manner by a fixing screw and a gasket, and the other end of the threaded columnar support 8-2 is fixed on the rail of the movable side plate 4 in a matched manner by the fixing screw and the gasket; one end of the other threaded columnar support 8-2 is fixed to the other end of the crack mounting rail 8-1 through a fixing screw and a gasket in a matched mode, and the other end of the threaded columnar support 8-2 is fixed to the rail of the fixed side plate 2 through the fixing screw and the gasket in a matched mode.
During specific operation, a plurality of groups of crack arrangement structures are selected according to test design requirements, each group of crack arrangement tracks 8-1 are fixed on the tracks of the movable side plate 4 and the static side plate 2 through two pairs of threaded columnar supports 8-2, fixed screws and matched gaskets, and then a plurality of groups of crack structures are installed according to the test design requirements.
The first one is: when the non-through crack is manufactured, the crack structure comprises a prefabricated crack steel plate 8-4 and a clamp 8-3 for clamping and fixing the prefabricated crack steel plate 8-4; the upper end of the clamp 8-3 is connected with one end of a fixing screw, the other end of the fixing screw is fixed on the crack arranging track 8-1, one clamp 8-3 is matched with one crack steel plate 8-4, and the number of pairs of the crack steel plates 8-4 and the clamps 8-3 can be selected according to actual needs.
The second method is as follows: when the through crack is manufactured, the crack structure comprises at least two fixing strips 8-5 and a prefabricated crack 8-6; one end of each fixing strip 8-5 is fixed on the crack arrangement track 8-1, the other end of each fixing strip is in threaded connection with a hole reserved on the corresponding prefabricated crack 8-6 and used for preparing each prefabricated crack 8-6, and the two fixing strips 8-5 correspond to one prefabricated crack 8-6.
Referring to fig. 1, the apparatus of this example produces a non-through type fracture rock-like sample according to a second example of the present application by the following steps:
step S1, welding the static side plate 2 on the bottom plate 1, and fixedly connecting the triangular auxiliary baffle plate 3 with the static side plate 2 and the movable side plate 4 through three fixing bolts 6 respectively;
step S2, the triangular auxiliary baffle 3 is simultaneously fixedly connected with the static side plate 2 and the bottom plate 1 through 3 fixing bolts 6; the movable side plate 4 is placed on the upper portion of the bottom plate 1, the movable side plate 4 is connected with the static side plate 2 through two groups of connecting pieces 7, and the two groups of connecting pieces 7 are used for limiting the horizontal movement of the movable side plate 4;
step S3, two groups of adjusting bolts 5 are arranged on the triangular auxiliary baffle 3, contact blocks 5-2 at the bottoms of the adjusting bolts 5 are in contact with the movable side plate 4, and the vertical movement of the movable side plate 4 is limited through the two groups of adjusting bolts 5 according to the size required by experimental design;
s4, selecting a specific number of crack arrangement structures according to test design requirements, selecting a plurality of prefabricated crack steel plates 8-4 and corresponding clamps 8-3 according to requirements, wherein one crack steel plate 8-4 is matched with one clamp 8-3, and the specific number is determined according to actual test requirements;
s5, connecting the upper end of a clamp 8-3 with one end of a fixing screw, fixing the other end of the fixing screw on a crack setting track 8-1, and clamping a prefabricated crack steel plate 8-4 in the clamp 8-3 to complete the installation of the model;
step S6, matching pouring materials, pouring in layers, and after 24 hours, removing all fixing screws and gaskets on the crack arrangement track 8-1, all crack arrangement tracks 8-1, the threaded columnar supports 8-2, the prefabricated crack steel plates 8-4 and the clamps 8-3 in sequence to complete the removal of the crack arrangement structure and continue to maintain; after the test piece is cured;
step S7, removing the two groups of connecting pieces 7, and rotating the adjusting bolt 5 in the opposite direction to the position of the rock-like test piece until a large space is reserved between the contact block 5-2 and the movable side plate 4; and then the movable side plate 4 is removed, and the rock-like test piece is taken out.
According to a third embodiment of the present application, referring to fig. 2, the device of the present embodiment comprises the following steps of:
step T1, welding the static side plate 2 on the bottom plate 1, and fixedly connecting the triangular auxiliary baffle plate 3 with the static side plate 2 and the movable side plate 4 respectively through three fixing bolts 6;
step T2, the triangular auxiliary baffle 3 is simultaneously fixedly connected with the static side plate 2 and the bottom plate 1 through 3 fixing bolts 6; the movable side plate 4 is placed on the upper part of the bottom plate 1, the movable side plate 4 is connected with the static side plate 2 through two groups of connecting pieces 7, and the two groups of connecting pieces 7 are used for limiting the horizontal movement of the movable side plate 4;
step T3, arranging two groups of adjusting bolts 5 on the triangular auxiliary baffle 3, contacting a contact block 5-2 at the bottom of each adjusting bolt 5 with the movable side plate 4, and limiting the vertical movement of the movable side plate 4 through the two groups of adjusting bolts 5 according to the size required by experimental design;
t4, selecting a specific number of crack arrangement structures according to the test design requirements, and selectively installing a plurality of fixing strips 8-5 and prefabricated cracks 8-6 according to the requirements;
and T5, fixing one end of the fixing strip 8-5 on the crack mounting rail 8-1, and connecting the other end of the fixing strip with a hole reserved on the prefabricated crack 8-6 in a threaded manner to finish the installation of the model.
Step T6, matching pouring materials, pouring in layers, and after 24 hours, sequentially removing all fixing screws, gaskets, all fracture setting rails 8-1, threaded columnar supports 8-2, prefabricated fractures 8-6 and fixing strips 8-5 on the fracture setting rails 8-1 to finish the removal of the fracture setting structure, and continuing to maintain until the maintenance of the test piece is finished;
step T7, firstly adjusting the two groups of connecting pieces 7 to be in a loose state, adjusting the width of the crack by the adjusting bolt 5 according to the test design requirement until the crack reserved between the two types of rock test pieces meets the design requirement, filling the crack with a material, after the crack is stabilized, sequentially detaching the two groups of connecting pieces 7, and rotating the adjusting bolt 5 in the opposite direction to the position of the rock test piece until a large space is reserved between the contact block 5-2 and the movable side plate 4; and then the movable side plate 4 is removed, and the rock-like test piece is taken out.
While the embodiments of the invention have been described in detail in connection with the accompanying drawings, it is not intended to limit the scope of the invention. Various modifications and changes may be made by those skilled in the art without inventive step within the scope of the appended claims.
Claims (10)
1. A contains crack class rock material preparation test device which characterized in that: comprises a bottom plate, a static side plate and a movable side plate; the static side plate is fixed on the bottom plate, the edge end of the static side plate is connected with one edge of the triangular auxiliary baffle plate, and the other edge of the triangular auxiliary baffle plate is fixed on the bottom plate; the movable side plate is movably arranged on the bottom plate, and a crack accommodating cavity is formed between the movable side plate and the static side plate; at least one group of crack mounting structures are arranged on the static side plate and the dynamic side plate; the fracture arrangement structure comprises at least one group of fracture structures, and the fracture structures are positioned in the fracture arrangement cavity; the connecting parts between the static side plates and the movable side plates are provided with connecting pieces for limiting the horizontal displacement of the movable side plates; and at least two adjusting bolts are arranged on the triangular auxiliary baffle plate and penetrate through the triangular auxiliary baffle plate and are connected with the movable side plate in a contact manner.
2. The fissured rock-like material preparation test apparatus of claim 1, wherein: three first threaded holes are reserved in the triangular auxiliary baffle plate and are respectively positioned at the triangular positions of the triangular auxiliary baffle plate; and the triangular auxiliary baffle plate is respectively fixedly connected with the static side plate and the bottom plate through the threaded matching of the three fixing bolts and the three first threaded holes.
3. The fissured rock-like material preparation test apparatus of claim 1, wherein: the adjusting bolt comprises a threaded bolt, two groups of fixing screws, two groups of gaskets and a contact block; one end of the threaded bolt is positioned on the outer side of the triangular auxiliary baffle; the other end of the threaded bolt penetrates through a triangular auxiliary baffle plate which is pre-provided with a second threaded hole and is fixedly connected with a contact block, and the contact block is in contact connection with the movable side plate; and the threaded bolt is locked on the triangular auxiliary baffle plate through the matching of the two groups of gaskets and the fixing screws.
4. The fissured rock-like material preparation test apparatus of claim 1, wherein: the connecting piece comprises a connecting plate, two connecting screws, a fixing screw and a gasket; the connecting plate is provided with two screw holes matched with the connecting screws; one end of the connecting plate is movably arranged on the track on one side of the static side plate through a connecting screw, and the other end of the connecting plate is fixed on the movable side plate through the matching of the connecting screw, the fixing screw and the gasket.
5. The fissured rock-like material preparation test apparatus of claim 1, wherein: the crack arrangement structure comprises a crack arrangement track, two threaded columnar supports and at least one group of crack structures;
the crack arrangement track is positioned above the movable side plate and the static side plate; one end of the threaded columnar support is fixed on one end of the crack mounting rail in a matched mode through a fixing screw and a gasket, and the other end of the threaded columnar support is fixed on the rail of the movable side plate in a matched mode through the fixing screw and the gasket; one end of the other threaded columnar support is fixed to the other end of the crack arrangement rail in a matched mode through a fixing screw and a gasket, and the other end of the threaded columnar support is fixed to the rail of the fixed side plate in a matched mode through the fixing screw and the gasket.
6. The fissured rock-like material preparation test apparatus of claim 5, wherein: the crack structure comprises a prefabricated crack steel plate and a clamp for clamping the prefabricated crack steel plate; the upper end of the clamp is connected with one end of a fixing screw, and the other end of the fixing screw is fixed on the crack arrangement track.
7. The fissured rock-like material preparation test apparatus of claim 5, wherein: the crack structure comprises at least two fixing strips and a prefabricated crack; one end of the fixing strip is fixed on the crack arrangement track, and the other end of the fixing strip is in threaded connection with a hole reserved in the prefabricated crack.
8. The use method of the crack-containing rock material preparation test device according to any one of claims 1 to 7 is characterized by comprising the steps of making a non-through crack and making a through crack.
9. The use method of the crack-containing rock material preparation test device according to claim 8, wherein the step of making a non-through crack comprises the following steps:
s1, welding the static side plate on the bottom plate, and fixedly connecting the triangular auxiliary baffle plate with the static side plate and the movable side plate respectively through three fixing bolts;
s2, movably connecting the movable side plate with the fixed side plate by adopting two groups of connecting pieces to limit the horizontal movement of the movable side plate;
s3, arranging two groups of adjusting bolts on the triangular auxiliary baffle plate, wherein a contact block at the bottom of each adjusting bolt is in contact with the movable side plate to limit the movement of the movable side plate in the vertical direction;
s4, selecting the number of crack arrangement structures, and fixing crack arrangement tracks on the tracks of the movable side plate and the static side plate;
s5, arranging the crack structure in the crack arrangement cavity through the crack arrangement track, namely, connecting the upper end of the clamp with one end of a fixing screw, fixing the other end of the fixing screw on the crack arrangement track, and clamping the prefabricated crack steel plate in the clamp;
s6, matching pouring materials and pouring in layers, after 24 hours, sequentially removing the crack arrangement rails and the crack structures until all crack arrangement structures, the prefabricated crack steel plates and the clamps are removed, and continuing maintenance until the test piece is maintained;
and S7, removing the connecting piece, withdrawing the adjusting bolt until a space for removing the movable side plate is reserved between the contact block and the movable side plate, and taking out the rock-like test piece after removing the movable side plate.
10. The use method of the fracture-containing rock material preparation test device according to claim 8, wherein the making of the through fracture comprises the steps of:
t1, welding the static side plate on the bottom plate, and fixedly connecting the triangular auxiliary baffle plate with the static side plate and the movable side plate respectively through three fixing bolts;
t2, movably connecting the movable side plate with the fixed side plate by adopting two groups of connecting pieces to limit the horizontal movement of the movable side plate;
t3, two groups of adjusting bolts are arranged on the triangular auxiliary baffle plate, and contact blocks at the bottoms of the adjusting bolts are in contact with the movable side plate to limit the movement of the movable side plate in the vertical direction;
t4, selecting the number of crack arrangement structures, and fixing the crack arrangement tracks on the tracks of the movable side plate and the static side plate;
t5, arranging the crack structure in the crack arrangement cavity through the crack arrangement track, namely fixing one end of a fixing strip on the crack arrangement track, and connecting the other end of the fixing strip with a hole reserved on the prefabricated crack through a thread;
t6, matching pouring materials and performing layered pouring, after 24 hours, sequentially removing the crack arrangement rail and the crack structure until the crack arrangement structure, the fixing strips and the prefabricated cracks are removed, and continuing maintenance until the test piece is maintained;
t7, adjusting the connecting piece to a loose state, adjusting the connecting piece through an adjusting bolt, measuring the width of the crack simultaneously, filling the crack with a material when the crack reserved between the two rock test pieces reaches a preset value, removing the connecting piece after the crack is filled stably, withdrawing the adjusting bolt until a space for removing the movable side plate is reserved between the contact block and the movable side plate, and taking out the rock-like test piece after removing the movable side plate.
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Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100036614A1 (en) * | 2005-12-12 | 2010-02-11 | Hannes Georges Zuecher | Locating oil or gas passively by observing a porous oil and gas saturated system giving off its characteristic resonance response to ambient background noise, including optional differentiation of oil, locatinggas and water |
| CN101832324A (en) * | 2009-03-13 | 2010-09-15 | 西门子公司 | Locking mechanism for nut on screw stem |
| CN102519767A (en) * | 2011-12-16 | 2012-06-27 | 武汉大学 | Mould for manufacturing fissure surface of rock like test block |
| CN102620967A (en) * | 2012-04-06 | 2012-08-01 | 河海大学 | Rock-class test piece mould for field of rock mechanics |
| CN106370498A (en) * | 2016-12-05 | 2017-02-01 | 山东科技大学 | Adjustable model for preparation of rock specimen containing cracks and use method thereof |
| CN109387414A (en) * | 2018-12-19 | 2019-02-26 | 东北大学 | A kind of device and method preparing the artificial sample of sizes hydraulic fracturing experiments |
| CN111207972A (en) * | 2020-01-13 | 2020-05-29 | 白逸凡 | Rock test piece manufacturing die capable of adjusting joint angle and position and using method |
| CN112362442A (en) * | 2020-11-09 | 2021-02-12 | 武汉科技大学 | Rock-like sample manufacturing mold and using method thereof |
| CN212722305U (en) * | 2020-09-09 | 2021-03-16 | 东华理工大学 | Surrounding rock crack prefabrication system under excavation disturbance |
| CN113155565A (en) * | 2021-04-16 | 2021-07-23 | 武汉科技大学 | Rock-like material test piece preparation device and use method |
| AU2021105045A4 (en) * | 2021-08-06 | 2021-09-30 | Jilin University | Adjustable Rock-like Material Crack Prefabrication Device |
| CN214364143U (en) * | 2021-01-11 | 2021-10-08 | 中城建第十三工程局江苏有限公司 | T-shaped member connecting piece |
| CN215913844U (en) * | 2020-12-10 | 2022-03-01 | 浙江圣奥家具制造有限公司 | Ready-package drawer structure |
| WO2022121016A1 (en) * | 2020-12-09 | 2022-06-16 | 山东科技大学 | Variable inclination angle fault slip simulation test method |
-
2022
- 2022-07-11 CN CN202210807073.6A patent/CN114858561B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100036614A1 (en) * | 2005-12-12 | 2010-02-11 | Hannes Georges Zuecher | Locating oil or gas passively by observing a porous oil and gas saturated system giving off its characteristic resonance response to ambient background noise, including optional differentiation of oil, locatinggas and water |
| CN101832324A (en) * | 2009-03-13 | 2010-09-15 | 西门子公司 | Locking mechanism for nut on screw stem |
| CN102519767A (en) * | 2011-12-16 | 2012-06-27 | 武汉大学 | Mould for manufacturing fissure surface of rock like test block |
| CN102620967A (en) * | 2012-04-06 | 2012-08-01 | 河海大学 | Rock-class test piece mould for field of rock mechanics |
| CN106370498A (en) * | 2016-12-05 | 2017-02-01 | 山东科技大学 | Adjustable model for preparation of rock specimen containing cracks and use method thereof |
| CN109387414A (en) * | 2018-12-19 | 2019-02-26 | 东北大学 | A kind of device and method preparing the artificial sample of sizes hydraulic fracturing experiments |
| CN111207972A (en) * | 2020-01-13 | 2020-05-29 | 白逸凡 | Rock test piece manufacturing die capable of adjusting joint angle and position and using method |
| CN212722305U (en) * | 2020-09-09 | 2021-03-16 | 东华理工大学 | Surrounding rock crack prefabrication system under excavation disturbance |
| CN112362442A (en) * | 2020-11-09 | 2021-02-12 | 武汉科技大学 | Rock-like sample manufacturing mold and using method thereof |
| WO2022121016A1 (en) * | 2020-12-09 | 2022-06-16 | 山东科技大学 | Variable inclination angle fault slip simulation test method |
| CN215913844U (en) * | 2020-12-10 | 2022-03-01 | 浙江圣奥家具制造有限公司 | Ready-package drawer structure |
| CN214364143U (en) * | 2021-01-11 | 2021-10-08 | 中城建第十三工程局江苏有限公司 | T-shaped member connecting piece |
| CN113155565A (en) * | 2021-04-16 | 2021-07-23 | 武汉科技大学 | Rock-like material test piece preparation device and use method |
| AU2021105045A4 (en) * | 2021-08-06 | 2021-09-30 | Jilin University | Adjustable Rock-like Material Crack Prefabrication Device |
Non-Patent Citations (2)
| Title |
|---|
| MOSTAFA ASADIZADEH ET AL: "Investigation of mechanical behaviour of non-persistent jointed blocks under uniaxial compression", 《GEOMECHANICS AND ENGINEERING》 * |
| 王奇智 等: "预制裂隙类岩石材料板动态压缩破坏试验研究", 《岩石力学与工程学报 》 * |
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| CN114858561B (en) | 2022-09-20 |
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