CN103196717A - Rock-similar sample mold capable of accurately positioning filling-type prefabricated cracks - Google Patents
Rock-similar sample mold capable of accurately positioning filling-type prefabricated cracks Download PDFInfo
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- CN103196717A CN103196717A CN2013100731657A CN201310073165A CN103196717A CN 103196717 A CN103196717 A CN 103196717A CN 2013100731657 A CN2013100731657 A CN 2013100731657A CN 201310073165 A CN201310073165 A CN 201310073165A CN 103196717 A CN103196717 A CN 103196717A
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Abstract
The invention relates to a rock-similar sample mold capable of accurately positioning filling-type prefabricated cracks. The mold comprises a pedestal, side plates, separating plates, clamps, studs and cap bolts, wherein two side plates are respectively located at front and rear sides of the pedestal and are connected through the studs, inner sides of the side plates is provided with concave mortises, three separating plates are respectively connected between the two side plates through the mortises, each side plate is provided with two circular gear-shaped hole grooves, each circular gear-shaped hole groove is located between two adjacent separating plates, the clamps are arranged in the circular gear-shaped hole grooves, and the cap bolts respectively pass through the studs and are connected with the pedestal. Compared with prior art, the mold is simple in structure, easy to process, convenient and rapid to dismount, accurate in positioning of the prefabricated cracks and various in crack types, and improves preparation efficiency and precision of the rock-similar samples containing the prefabricated cracks.
Description
Technical field
The invention belongs to the rock mechanics field, be specifically related to regulate a kind of rocks sample mould that can accurately locate the packed type prefabricated crack of prefabricated crack angle, length, thickness equidimension parameter.
Background technology
Along with the Large scale construction of China's Geotechnical Engineering, the expansion of research rock cranny and the mechanism of destroying thereof are very important.Because natural rock sample structure complexity, the crack size is difficult for obtaining in the sample, the orientation is difficult to determine, be difficult to by real rock sample the mechanical behavior in crack to be carried out Research on Regularity, therefore extensively adopt be the rocks sample as analog materials such as pottery, gypsum, sand-cement slurry, study by the crack of prefabricated certain form in sample.Because the location of prefabricated crack is comparatively complicated loaded down with trivial details, in the process of vibrating, usually cause the prefabricated crack dislocation, miss fire, and pre-controlling angle, the thickness in crack to be isoparametric changeable and complicated, the rocks sample production that contains prefabricated crack is very difficult.Existing mould structure complexity, dismounting mold process are loaded down with trivial details, the prefabricated crack location is inaccurate, have brought very big inconvenience for the sample production process, and all consider to make the prefabricated crack that contains stuff.In order to address this problem, needing badly provides a kind of rocks sample mould that can accurately locate the packed type prefabricated crack.
It is a kind of for the hard brittle material of making rocks and the preparation method of specimen prefabricated crack thereof that application number is that 200910013928.2 Chinese patent has been introduced, and the carriage that the location, crack adopts iron wire to do is fixed.This mould can't directly be regulated crack angle, sample build and the process of vibrating in prefabricated crack do not have locating device, easily misplace, precision is low.
It is a kind of for the mould of making rocks test block fissure-plane that application number is that 201110422886.5 Chinese patent has been introduced, and utilizes chute, steel disc backstay, protractor, slide bar and steel disc etc. to carry out the making of prefabricated crack.This mould crack locating device complexity, assembling and form removal process are loaded down with trivial details, and can't make the prefabricated crack that contains stuff.
Summary of the invention
Purpose of the present invention be exactly provide in order to overcome the defective that above-mentioned prior art exists a kind of simple in structure, cost is low, easy to operate, the rocks sample mould that can accurately locate the packed type prefabricated crack that precision is high.
Purpose of the present invention can be achieved through the following technical solutions:
A kind of rocks sample mould that can accurately locate the packed type prefabricated crack, this mould comprises base, side plate, dividing plate, anchor clamps, stud bolt and nut bolt, described side plate is provided with 2, lay respectively at the both sides, front and back of base, connect by stud bolt between 2 side plates, the inboard of described side plate is provided with the spill tongue-and-groove, described dividing plate is provided with 3,3 dividing plates are connected between 2 side plates by the spill tongue-and-groove respectively, be respectively equipped with 2 round tooth colyliform hole slots on each side plate, each round tooth colyliform hole slot lays respectively between two adjacent dividing plates, described anchor clamps are located at respectively in the round tooth colyliform hole slot, and described nut bolt runs through stud bolt respectively and is connected with base.This mould once can prepare two samples.
Each side plate is combined by first side plate and second side plate, the lower edge of first side plate offers 2 semi-circular teeth colyliform hole slots, the upper edge of second side plate offers 2 semi-circular teeth colyliform hole slots, when first side plate and second side plate were connected, the semi-circular teeth colyliform hole slot that lays respectively on first side plate and second side plate was combined to form round tooth colyliform hole slot.
The two ends that are positioned at 2 first side plates of both sides, base front and back all offer bolt hole, the two ends of 2 first side plates connect by 2 stud bolts respectively, the two ends that are positioned at 2 second side plates of both sides, base front and back all offer bolt hole, and the two ends of 2 second side plates connect by 2 stud bolts respectively.
The inboard of described round tooth colyliform hole slot is smooth surface, and the outside of round tooth colyliform hole slot is the gear-like structure, big outer little shape in namely being.
The rounded gear-like of described anchor clamps, its shape is corresponding with round tooth colyliform hole slot on the side plate, each anchor clamps is combined by first anchor clamps and lower clamp half, and the diameter edge place of first anchor clamps and lower clamp half all offers a rectangle sipes, and filling has a rubber cushion blocks in this rectangle sipes.
Described rubber cushion blocks is replaceable.
By cooperating between the gear-like structure of anchor clamps and round tooth colyliform hole slot, anchor clamps can be the different angles setting in round tooth colyliform hole slot, and the direction in slit changes with the change of chucking position between two rubber cushion blocks in first anchor clamps and the lower clamp half.Utilize the rubber cushion blocks of first anchor clamps and lower clamp half to step up crack packing material such as mica sheet, paraffin sheet, steel disc etc., thickness, the width equidimension parameter of regulating the filling crack by the shape that changes rubber cushion blocks.The angle of regulating prefabricated crack in the position of side plate round tooth colyliform hole slot by anchor clamps.
Angle between described anchor clamps adjacent gear is 15 °.
The centre position of described base is provided with two and is higher than platform all around, form a spill tongue-and-groove between two platforms, be used for stationary barrier, 3 dividing plates are inserted in the middle of two side plates by the spill tongue-and-groove on base and the side plate, base, side plate, dividing plate are fixed together closely, two platforms lay respectively in two spaces of adjacent 2 dividing plates and 2 side plate formations, and the floorage in the space of adjacent 2 dividing plates and 2 side plate formations is identical with the area of platform.
The middle part of described stud bolt offers hole slot, and the two ends of described base offer bolt hole, and described nut bolt runs through stud bolt and is connected with the bolt hole of base.
All parts of this mould all adopt aluminum alloy materials.
Use the rocks sample mould that accurately to locate the packed type prefabricated crack of the present invention to make and contain prefabricated crack rocks sample.Wherein, when the prefabricated crack type was through crack, method for making may further comprise the steps:
(1) will be positioned at that second side plate of both sides is placed on the base before and after the base, and be fixed with stud bolt, according to the angle of inclination of the angle between the anchor clamps adjacent gear and prefabricated crack, lower clamp half will be placed in the semi-circular teeth colyliform hole slot of second side plate.
(2) according to a certain size rubber cushion blocks of the thickness of prefabricated crack and width cutting, clip with the crack packing material of rubber cushion blocks with well cutting, and be placed in the rectangle sipes of lower clamp half, then first anchor clamps are placed in the semi-circular teeth colyliform hole slot of second side plate.
(3) first side plate is slowly pushed by the outside, its semi-circular teeth colyliform hole slot is filled by the gear of anchor clamps, with stud bolt first side plate of side before and after the base is fixed then, utilized the round tooth colyliform hole slot on anchor clamps and the side plate that the crack packing material is fixed chucking.
(4) dividing plate is inserted into base along the spill tongue-and-groove of side plate, the hole slot that nut bolt is passed stud bolt is fixed on the bolt hole of base, and then two side plates are fixed on the base.Final base, side plate and dividing plate enclose to the space that forms the cast sample.
(5) sand-cement slurry of certain proportioning is stirred after, slowly pour in the mould, vibrate, floating.After treating the sample moulding, carry out form removal, in the form removal process, the nut bolt that will connect base is laid down earlier, twists the nut of all stud bolts, slowly first side plate, second side plate and anchor clamps is removed successively, take away dividing plate then, the sample of finally building moulding just is presented on the platform of base.After cutting off the unnecessary crack packing material in sample side, the rocks sample that contains through prefabricated crack just completes.
When the prefabricated crack type was the internally-arranged type crack, method for making may further comprise the steps:
(1) will be positioned at that second side plate of both sides is placed on the base before and after the base, and be fixed with stud bolt, according to the angle of inclination of the angle between the anchor clamps adjacent gear and prefabricated crack, lower clamp half will be placed in the semi-circular teeth colyliform hole slot of second side plate.
(2) according to a certain size rubber cushion blocks of the thickness of prefabricated crack and width cutting, mark 2 points at rubber cushion blocks, clip with the crack packing material of rubber cushion blocks with well cutting, and be placed in the rectangle sipes of lower clamp half, then first anchor clamps are placed in the semi-circular teeth colyliform hole slot of second side plate.
(3) first side plate is slowly pushed by the outside, its semi-circular teeth colyliform hole slot is filled by the gear of anchor clamps, with stud bolt first side plate of side before and after the base is fixed then, utilized the round tooth colyliform hole slot on anchor clamps and the side plate that the crack packing material is fixed chucking.
(4) four apertures are bored at four angle point places of pre-buried crack packing material, one of thin nylon wire with four root knot realities ties up on the aperture, the point that rubber cushion blocks marks is above passed in the other end, regulate the position of crack packing material after, in the thin nylon wire tension knotting of rubber cushion blocks one end.
(5) dividing plate is inserted into base along the spill tongue-and-groove of side plate, the hole slot that nut bolt is passed stud bolt is fixed on the bolt hole of base, and then two side plates are fixed on the base.Final base, side plate and dividing plate enclose to the space that forms the cast sample.
(6) sand-cement slurry of certain proportioning is stirred after, slowly pour in the mould, vibrate, floating.After treating the sample moulding, carry out form removal, in the form removal process, cut the tieing of thin nylon wire earlier, the nut bolt that connects base is laid down, twisted the nut of all stud bolts, slowly first side plate, second side plate and anchor clamps are removed successively, take away dividing plate then, the sample of finally building moulding just is presented on the platform of base.After cutting off the unnecessary thin nylon wire in sample side with scissors, the rocks sample that contains through prefabricated crack just completes.
Compared with prior art, the present invention has the following advantages and beneficial effect:
(1) the mould structure simple and durable, be easy to processing, can reuse, convenient to disassembly, improved the preparation efficiency that contains prefabricated crack rocks sample.
(2) adopt gear-like anchor clamps location crack angle, firm position, easy accessibility, reduced as far as possible build and the process of vibrating in to the influence in prefabricated crack orientation, can change the angle of inclination in crack again accurately and quickly.
(3) clamp stuff by reeded rubber cushion blocks, both protected the integrality of compaction material, can play the effect of the compaction material that is fixedly clamped again preferably.
(4) the mould each several part adopts stud bolt, spill tongue-and-groove to be fixed together, and can dismantle easily, assemble.
(5) utilize this mould not only can make the crack sample that contains stuff and do not contain stuff, can also prepare the rocks sample in through, surface type, internally-arranged type crack.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of latus inframedium of the present invention;
Fig. 3 is the structural representation of anchor clamps among the present invention;
Fig. 4 is the structural representation of anchor clamps fixed position among the embodiment 1;
Fig. 5 is the structural representation of anchor clamps fixed position among the embodiment 2.
Among the figure: 1 is base, and 2 is side plate, and 21 is first side plate, 22 is second side plate, and 23 is the spill tongue-and-groove, and 24 is round tooth colyliform hole slot, 25 is bolt hole, and 3 is anchor clamps, and 31 is first anchor clamps, 32 is lower clamp half, and 33 is the rectangle sipes, and 4 is rubber cushion blocks, 5 is dividing plate, and 6 is stud bolt, and 7 is nut bolt, 8 is mica sheet, and 9 is thin nylon wire.
Embodiment
The present invention is described in detail below in conjunction with the drawings and specific embodiments.
A kind of rocks sample mould that can accurately locate the packed type prefabricated crack, as Fig. 1～shown in Figure 3, this mould comprises 1 base 1,2 side plates 2,3 dividing plates 5,4 sleeve clamps 3,4 stud bolts 6 and 2 nut bolts 7,2 side plates 2 lay respectively at the both sides, front and back of base 1, connect by 4 stud bolts 6 between 2 side plates 2, the inboard of 2 side plates 2 is equipped with spill tongue-and- groove 23,3 dividing plates 5 are connected between 2 side plates 2 by spill tongue-and-groove 23 respectively, be respectively equipped with 2 round tooth colyliform hole slots 24 on each side plate 2, each round tooth colyliform hole slot 24 lays respectively between two adjacent dividing plates 5,4 sleeve clamps 3 are located at respectively in the round tooth colyliform hole slot 24, and 2 nut bolts 7 run through stud bolt 6 respectively and are connected with base 1.
Wherein, the structure of side plate 2 as shown in Figure 2, each side plate 2 is combined by first side plate 21 and second side plate 22, the lower edge of first side plate 21 offers 2 semi-circular teeth colyliform hole slots, the upper edge of second side plate 22 offers 2 semi-circular teeth colyliform hole slots, when first side plate 21 was connected with second side plate 22, the semi-circular teeth colyliform hole slot that lays respectively on first side plate 21 and second side plate 22 was combined to form round tooth colyliform hole slot 24.The two ends that are positioned at 2 first side plates 21 of both sides, base 1 front and back all offer bolt hole 25, the two ends of 2 first side plates 21 connect by 2 stud bolts 6 respectively, the two ends that are positioned at 2 second side plates 22 of both sides, base 1 front and back all offer the two ends of 25,2 second side plates 22 of bolt hole respectively by 6 connections of 2 stud bolts.The inboard of round tooth colyliform hole slot 24 is smooth surface, and the outside of round tooth colyliform hole slot 24 is the gear-like structure, big outer little shape in namely being.
The structure of anchor clamps 3 as shown in Figure 3, anchor clamps 3 rounded gear-like, its shape is corresponding with round tooth colyliform hole slot 24 on the side plate 2, each anchor clamps 3 is combined by first anchor clamps 31 and lower clamp half 32, the diameter edge place of first anchor clamps 31 and lower clamp half 32 all offers a rectangle sipes 33, and filling has a rubber cushion blocks 4 in this rectangle sipes 33.Wherein rubber cushion blocks 4 is replaceable.
By cooperating between the gear-like structure of anchor clamps 3 and round tooth colyliform hole slot 24, anchor clamps 3 can be the different angles setting in round tooth colyliform hole slot 24, the direction in slit changes with the change of anchor clamps 3 positions between two rubber cushion blocks 4 in first anchor clamps 31 and the lower clamp half 32.Utilize the rubber cushion blocks 4 of first anchor clamps 31 and lower clamp half 32 to step up crack packing material such as mica sheet, paraffin sheet, steel disc etc., thickness, the width equidimension parameter of regulating the filling crack by the shape that changes rubber cushion blocks 4.The angle of regulating prefabricated crack by the position of the round tooth colyliform hole slot 24 of anchor clamps 3 on side plate 2.
The centre position of base 1 is provided with two and is higher than platform all around, form a spill tongue-and-groove between two platforms, be used for stationary barrier 5,3 dividing plates 5 are inserted in the middle of two side plates 2 by the spill tongue-and-groove on the base 1 and the spill tongue-and-groove 23 on the side plate 2, base 1, side plate 2, dividing plate 5 are fixed together closely, two platforms lay respectively in two spaces of adjacent 2 dividing plates 5 and 2 side plate 2 formations, and the floorage in the space of adjacent 2 dividing plates 5 and 2 side plate 2 formations is identical with the area of platform.The middle part of stud bolt 6 offers hole slot, and the two ends of base 1 offer bolt hole, and nut bolt 7 runs through stud bolt 6 and is connected with the bolt hole of base 1.All parts of this mould all adopt aluminum alloy materials.
Use the rocks sample mould that accurately to locate the packed type prefabricated crack of the present invention to make and contain prefabricated crack rocks sample, the rocks specimen size that adopts is 70mm * 70mm * 140mm, sample material adopts sand-cement slurry, the prefabricated crack type is through crack, stuff are the natural mica sheet in the crack, and the angle of inclination, crack is 30 °, and the crack width is 20mm, crack thickness is 0.1mm, and the concrete operations step is as follows:
(1) second side plate 22 that will be positioned at both sides, base 1 front and back is placed on the base 1, and be fixed with stud bolt 6, according to the angle between anchor clamps 3 adjacent gear and the angle of inclination of prefabricated crack, lower clamp half 32 is placed in the semi-circular teeth colyliform hole slot of second side plate 22, angle in the present embodiment between anchor clamps 3 adjacent gear is 15 °, and the fixed position of anchor clamps 3 as shown in Figure 4.
(2) according to a certain size rubber cushion blocks 4 of the thickness of prefabricated crack and width cutting, clip with the mica sheet 8 of rubber cushion blocks 4 with well cutting, and be placed in the rectangle sipes 33 of lower clamp half 32, first anchor clamps 31 are placed in the semi-circular teeth colyliform hole slot of second side plate 22 then.
(3) first side plate 21 is slowly pushed by the outside, its semi-circular teeth colyliform hole slot is filled by the gear of anchor clamps 3, with stud bolt 6 that first side plate 21 of base 1 front and back side is fixing then, utilize the round tooth colyliform hole slot 24 on anchor clamps 3 and the side plate 2 that mica sheet 8 is fixed chucking.
(4) dividing plate 5 is inserted into base 1 along the spill tongue-and-groove 23 of side plate 2, the hole slot that nut bolt 7 is passed stud bolt 6 is fixed on the bolt hole of base 1, and then two side plates 2 are fixed on the base 1.Final base 1, side plate 2 and dividing plate 5 enclose to the space that forms the cast sample.
(5) sand-cement slurry of certain proportioning is stirred after, slowly pour in the mould, vibrate, floating.After treating the sample moulding, carry out form removal, in the form removal process, the nut bolt 7 that will connect base 1 is earlier laid down, twist the nut of all stud bolts 6, slowly first side plate 21, second side plate 22 and anchor clamps 3 are removed successively, taken away dividing plate 5 then, the sample of finally building moulding just is presented on the platform of base 1.After cutting off the unnecessary mica sheet in sample side 8, the rocks sample that contains through prefabricated crack just completes.
Embodiment 2
Use the rocks sample mould that accurately to locate the packed type prefabricated crack of the present invention to make and contain prefabricated crack rocks sample.The rocks specimen size that adopts is 70mm * 70mm * 140mm, sample material adopts sand-cement slurry, the prefabricated crack type is the internally-arranged type crack, stuff are the natural mica sheet in the crack, the angle of inclination, crack is 45 °, and crack length is 20mm, and the crack width is 20mm, crack thickness is 0.1mm, and the concrete operations step is as follows:
(1) second side plate 22 that will be positioned at both sides, base 1 front and back is placed on the base 1, and is fixed with stud bolt 6.
(2) cutting rubber cushion blocks 4, its size is identical with rectangle sipes 33 of anchor clamps 3 centres, and the center line in the side of rubber cushion blocks 4 marks 2 points, and 2 are 10mm (distance between two points is crack width 20mm) apart from the center line mid point; According to the angle between anchor clamps 3 adjacent gear and the angle of inclination of prefabricated crack, the anchor clamps 3 that will have rubber cushion blocks 4 are placed in the semi-circular teeth colyliform hole slot of second side plate 22, angle in the present embodiment between anchor clamps 3 adjacent gear is 15 °, and the fixed position of anchor clamps 3 as shown in Figure 5.
(3) first side plate 21 is slowly pushed by the outside, its semi-circular teeth colyliform hole slot is filled by the gear of anchor clamps 3, with stud bolt 6 that first side plate 21 of base 1 front and back side is fixing then, utilize the round tooth colyliform hole slot 24 on anchor clamps 3 and the side plate 2 that mica sheet 8 is fixed chucking.
(4) four apertures are bored at four angle point places of pre-buried mica sheet 8,9 one of thin nylon wires with four root knot realities tie up on the aperture, the point that rubber cushion blocks 4 marks is above passed in the other end, regulate the position of mica sheet 8 after, in the thin nylon wire 9 tension knotting of rubber cushion blocks 4 one ends.
(5) dividing plate 5 is inserted into base 1 along the spill tongue-and-groove 23 of side plate 2, the hole slot that nut bolt 7 is passed stud bolt 6 is fixed on the bolt hole of base 1, and then two side plates 2 are fixed on the base 1.Final base 1, side plate 2 and dividing plate 5 enclose to the space that forms the cast sample.
(6) sand-cement slurry of certain proportioning is stirred after, slowly pour in the mould, vibrate, floating.After treating the sample moulding, carry out form removal, in the form removal process, cut the tieing of thin nylon wire 9 earlier, the nut bolt 7 that connects base 1 is laid down, twisted the nut of all stud bolts 6, slowly first side plate 21, second side plate 22 and anchor clamps 3 are removed successively, take away dividing plate 5 then, the sample of finally building moulding just is presented on the platform of base 1.Because carefully nylon wire 9 is own very little to the impact effect of sample, for reducing the disturbance to sample, thin nylon wire 9 is stayed sample inside will not be removed, cut off the unnecessary thin nylon wire 9 in sample side with scissors after, the rocks sample that contains the internally-arranged type prefabricated crack just completes.
Claims (10)
1. the rocks sample mould that can accurately locate the packed type prefabricated crack, it is characterized in that, this mould comprises base, side plate, dividing plate, anchor clamps, stud bolt and nut bolt, described side plate is provided with 2, lay respectively at the both sides, front and back of base, connect by stud bolt between 2 side plates, the inboard of described side plate is provided with the spill tongue-and-groove, described dividing plate is provided with 3,3 dividing plates are connected between 2 side plates by the spill tongue-and-groove respectively, be respectively equipped with 2 round tooth colyliform hole slots on each side plate, each round tooth colyliform hole slot lays respectively between two adjacent dividing plates, described anchor clamps are located at respectively in the round tooth colyliform hole slot, and described nut bolt runs through stud bolt respectively and is connected with base.
2. a kind of rocks sample mould that can accurately locate the packed type prefabricated crack according to claim 1, it is characterized in that, each side plate is combined by first side plate and second side plate, the lower edge of first side plate offers 2 semi-circular teeth colyliform hole slots, the upper edge of second side plate offers 2 semi-circular teeth colyliform hole slots, when first side plate and second side plate were connected, the semi-circular teeth colyliform hole slot that lays respectively on first side plate and second side plate was combined to form round tooth colyliform hole slot.
3. a kind of rocks sample mould that can accurately locate the packed type prefabricated crack according to claim 2, it is characterized in that, the two ends that are positioned at 2 first side plates of both sides, base front and back connect by 2 stud bolts respectively, and 2 stud bolts connections are passed through at the two ends that are positioned at 2 second side plates of both sides, base front and back respectively.
4. a kind of rocks sample mould that can accurately locate the packed type prefabricated crack according to claim 1 is characterized in that the inboard of described round tooth colyliform hole slot is smooth surface, and the outside of round tooth colyliform hole slot is the gear-like structure.
5. a kind of rocks sample mould that can accurately locate the packed type prefabricated crack according to claim 1, it is characterized in that, the rounded gear-like of described anchor clamps, its shape is corresponding with round tooth colyliform hole slot on the side plate, each anchor clamps is combined by first anchor clamps and lower clamp half, the diameter edge place of first anchor clamps and lower clamp half all offers a rectangle sipes, and filling has a rubber cushion blocks in this rectangle sipes.
6. a kind of rocks sample mould that can accurately locate the packed type prefabricated crack according to claim 5 is characterized in that described rubber cushion blocks is replaceable.
7. a kind of rocks sample mould that can accurately locate the packed type prefabricated crack according to claim 5, it is characterized in that, by cooperating between the gear-like structure of anchor clamps and round tooth colyliform hole slot, anchor clamps can be the different angles setting in round tooth colyliform hole slot, the direction in slit changes with the change of chucking position between two rubber cushion blocks in first anchor clamps and the lower clamp half.
8. a kind of rocks sample mould that can accurately locate the packed type prefabricated crack according to claim 5 is characterized in that the angle between described anchor clamps adjacent gear is 15 °.
9. a kind of rocks sample mould that can accurately locate the packed type prefabricated crack according to claim 1, it is characterized in that, the centre position of described base is provided with two and is higher than platform all around, two platforms lay respectively in two spaces of adjacent 2 dividing plates and 2 side plate formations, and the floorage in the space of adjacent 2 dividing plates and 2 side plate formations is identical with the area of platform.
10. a kind of rocks sample mould that can accurately locate the packed type prefabricated crack according to claim 1, it is characterized in that, the middle part of described stud bolt offers hole slot, the two ends of described base offer bolt hole, and described nut bolt runs through stud bolt and is connected with the bolt hole of base.
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| CN201310073165.7A CN103196717B (en) | 2013-03-07 | 2013-03-07 | A kind of rocks sample mould accurately locating packed type prefabricated crack |
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| CN201310073165.7A CN103196717B (en) | 2013-03-07 | 2013-03-07 | A kind of rocks sample mould accurately locating packed type prefabricated crack |
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