CN103616272A - Mold and method for manufacturing intermittent-fissure rock mass simulating test piece - Google Patents
Mold and method for manufacturing intermittent-fissure rock mass simulating test piece Download PDFInfo
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- CN103616272A CN103616272A CN201310641618.1A CN201310641618A CN103616272A CN 103616272 A CN103616272 A CN 103616272A CN 201310641618 A CN201310641618 A CN 201310641618A CN 103616272 A CN103616272 A CN 103616272A
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Abstract
The invention discloses a mold and a method for manufacturing an intermittent-fissure rock mass simulating test piece. The mold comprises a bottom plate on which a fixed long side plate, a movable long side plate, movable short side plates, a grooved bottom base plate and a grooved top cover plate are arranged, wherein reinforcing ribs are arranged between the outer side of the fixed long side plate and the bottom plate; a bolt end plate is arranged at the outer side of the movable long side plate and on the bottom plate and is provided with a side edge bolt; the inner end of the side edge bolt pushes against the outer side of the movable long side plate; grooves are formed in the grooved top cover plate and the grooved bottom base plate. The mold can be used for manufacturing simulating test pieces of rock masses under the combination of geometrical parameters of various fissures, and has the advantages that fissures can be accurately positioned, the pouring of the test piece is easy, air bubbles can be easily discharged, de-molding is convenient, and the mold can be used repeatedly; besides, the pouring and curing processes of the test piece can be strictly controlled.
Description
Technical field
The present invention relates to a kind of crack rock imitation specimen manufacturing technology, relate in particular to a kind of making mould and method of interrupted crack rock imitation specimen.
Background technology
Natural rock mass is comprised of complete rock and the structural plane of different scale (schistosity, crack, joint, tomography, bed plane, shear zone and vein etc.), and these structural planes play control action to rock mass macromechanics characteristic.
At present, along with large water conservancy hydroelectric engineering, traffic engineering, mining engineering, oil and gas exploitation engineering, and the underground development of the engineering such as sealing up for safekeeping of nuke rubbish underground buried, carbon dioxide, for reaching, rock mass engineering project system is carried out to safe, economic design, correct evaluation structure in the face of the impact of the mechanical characteristics such as the intensity of rock mass, distortion, perviousness be vital, Chinese scholars is being carried out a large amount of Test And Research Works aspect crack rock imitation specimen mechanical characteristic.
Interrupted crack rock imitation specimen mechanical test, is the effective ways of structural plane to rock mass mechanics behavior control action such as quantitative examination joint fissure, and achievement in research has important theory significance to rock mass mechanics, and has wide practical use in rock engineering; In current crack rock imitation specimen mechanical test, lack about the system test research under each geometric parameter combination of fracture set, wherein the most key technology is design and the corresponding test specimen method for making of mould; Requirement to crack rock simulation test piece mould: crack accurate positioning, handling ease, form removal facilitate, can be repeatedly used; To the normalized object of test specimen method for making: realize building with maintenance processes of simulation material controlled, keep the stability of test specimen on material property, improve the reliability of test findings.
In existing correlation technique, for crack rock imitation specimen, make, adopt fixing side and base plate more, and on movable panel cutting to insert sheet metal and pouring hole to be set and vent port.
At least there is following shortcoming in above-mentioned prior art:
Only cutting on top board, the sheet metal of prefabricated crack is difficult for inserting thoroughly and is fixing, easily in specimen thickness direction generation deflection, cannot accurately realize the joint of design in advance and arrange; Vent port and plug hole are only set on top board, when having a large amount of prefabricated crack, are difficult for injecting equably the liquefied mixture of simulation material, and the difficult discharge of bubble, this will affect the pouring quality of test specimen and the stability of mechanical property greatly; Only top board is movable detachable, the easy unfilled corner of form removal difficulty and test specimen.
Summary of the invention
The object of this invention is to provide a kind ofly have crack accurate positioning, test specimen to build easily, bubble is easily discharged, form removal convenient, making mould and the method for the interrupted crack rock imitation specimen that can be repeatedly used.
The object of the invention is to be achieved through the following technical solutions:
The making mould of interrupted crack rock imitation specimen of the present invention, comprise base plate, described base plate is provided with fixed length side plate and movable long side plate, between the outside of described fixed length side plate and described base plate, be provided with stiffening rib, the outside of described movable long side plate is provided with Bolted End-plate on base plate, described Bolted End-plate is provided with side bolt, and the inner of described side bolt is against the outside of described movable long side plate;
Described fixed length side plate is provided with two pairs of relative grooves with the inner side of movable long side plate, is inserted with respectively movable short side plate in every pair of groove;
On base plate between described fixed length side plate, movable long side plate and two movable short side plates, be placed with cutting backing plate at bottom, the top of two movable short side plates is placed with cutting top blind flange, on described cutting top blind flange and cutting backing plate at bottom, is processed with cutting.
The method for making of above-mentioned interrupted crack rock imitation specimen of the present invention, comprises step:
The long side plate of installation activity on base plate, and fix with base plate screw and side bolt tightening;
Insert the movable short side plate of a side, place cutting top blind flange and cutting backing plate at bottom, and sheet metal is inserted in cutting according to how much, the joint of design arrangement mode;
The simulation material flow-like potpourri modulating by proportioning is poured in mould, on shaking table, vibrated, treat the movable short side plate of opposite side on the discharge bonnet of bubble;
Before potpourri just solidifies, all sheet metals are extracted;
After the complete moulding of thing to be mixed, by the order of cutting top blind flange, movable short side plate, movable long side plate, cutting backing plate at bottom, carry out form removal;
Test specimen after the demoulding carries out maintenance under the curing condition of constant temperature, constant humidity, until reach the length of time of design.
As seen from the above technical solution provided by the invention, making mould and the method for the interrupted crack rock imitation specimen that the embodiment of the present invention provides, can carry out the lower rock simulation test specimen making of various geometric parameters of fissures combination, and there is the advantages such as crack accurate positioning, test specimen are built easily, bubble is easily discharged, form removal facilitates, can be repeatedly used.With the supporting test specimen method for making of this mould, can strictly control building with maintenance processes of test specimen.
Accompanying drawing explanation
The plan structure schematic diagram of the making mould of the interrupted crack rock imitation specimen that Fig. 1 provides for the embodiment of the present invention;
Fig. 2 is that the A-A of Fig. 1 is to structural representation;
Fig. 3 is that the B-B of Fig. 1 is to structural representation;
Fig. 4 is the structural representation of cutting top blind flange in the embodiment of the present invention;
Fig. 5 is the structural representation of cutting backing plate at bottom in the embodiment of the present invention.
In figure:
1, fixed length side plate, 2, stiffening rib, 3, base plate, 4, cutting top blind flange, 5, movable long side plate, 6, movable short side plate, 7, Bolted End-plate, 8, side bolt, 9, cutting backing plate at bottom.
Embodiment
To be described in further detail the embodiment of the present invention below.
The making mould of interrupted crack rock imitation specimen of the present invention, its preferably embodiment be:
Comprise base plate, described base plate is provided with fixed length side plate and movable long side plate, between the outside of described fixed length side plate and described base plate, be provided with stiffening rib, the outside of described movable long side plate is provided with Bolted End-plate on base plate, described Bolted End-plate is provided with side bolt, and the inner of described side bolt is against the outside of described movable long side plate;
Described fixed length side plate is provided with two pairs of relative grooves with the inner side of movable long side plate, is inserted with respectively movable short side plate in every pair of groove;
On base plate between described fixed length side plate, movable long side plate and two movable short side plates, be placed with cutting backing plate at bottom, the top of two movable short side plates is placed with cutting top blind flange, on described cutting top blind flange and cutting backing plate at bottom, is processed with cutting.
The bottom of described fixed length side plate is screwed on base plate, and described Bolted End-plate and stiffening rib are welded on base plate, and the bottom of described movable long side plate is connected on base plate by base plate screw.
Described base plate, fixed length side plate, movable long side plate, movable short side plate, stiffening rib, Bolted End-plate, bolt all adopt stainless steel material or common iron, and described cutting top blind flange and cutting backing plate at bottom adopt acrylic material.
The making mould of above-mentioned interrupted crack rock imitation specimen of the present invention is realized the method for making test specimen, its preferably embodiment comprise step:
The long side plate of installation activity on base plate, and fix with base plate screw and side bolt tightening;
Insert the movable short side plate of a side, place cutting top blind flange and cutting backing plate at bottom, and sheet metal is inserted in cutting according to how much, the joint of design arrangement mode;
The simulation material flow-like potpourri modulating by proportioning is poured in mould, on shaking table, vibrated, treat the movable short side plate of opposite side on the discharge bonnet of bubble;
Before potpourri just solidifies, all sheet metals are extracted;
After the complete moulding of thing to be mixed, by the order of cutting top blind flange, movable short side plate, movable long side plate, cutting backing plate at bottom, carry out form removal;
Test specimen after the demoulding carries out maintenance under the curing condition of constant temperature, constant humidity, until reach the length of time of design.
The making mould of interrupted crack rock imitation specimen of the present invention, can carry out the lower rock simulation test specimen making of various geometric parameters of fissures combination, and there is the advantages such as crack accurate positioning, test specimen are built easily, bubble is easily discharged, form removal facilitates, can be repeatedly used.With the supporting test specimen method for making of this mould, can strictly control building with maintenance processes of test specimen.
Specific embodiment:
As shown in Figure 1, Figure 2, Figure 3 shows, comprise base plate, fixed length side plate, movable long side plate, movable short side plate, ribbed stiffener, Bolted End-plate, bolt, cutting top blind flange and cutting backing plate at bottom etc.
Base plate, fixed length side plate, movable long side plate, movable short side plate, the floor of putting more energy into, Bolted End-plate, bolt all adopt stainless steel material or common iron, and cutting top blind flange and cutting backing plate at bottom adopt acrylic material.
Fixed length side plate is connected on base plate with screw, and Bolted End-plate and the floor of putting more energy into are all welded on base plate, and movable long side plate is supported on base plate by the mode of base plate screw (not shown) and side bolt.Two movable short side plates insert by the groove on fixed length side plate and movable long side plate.
As shown in Figure 4, Figure 5, the different geometric parameters of fissures combinations for crack rock imitation specimen need to adopt laser technology to process corresponding cutting, the cutting in the horizontal joint crack that for example alignment is arranged on cutting top blind flange and cutting backing plate at bottom.
The method and the operation steps that adopt this mould to carry out test specimen making comprise:
(1) the long side plate of installation activity on base plate, and fix with base plate screw and side bolt tightening;
(2) insert the movable short side plate of a side, place cutting top blind flange and cutting backing plate at bottom, and sheet metal is inserted in cutting according to how much, the joint of design arrangement mode;
(3) the simulation material flow-like potpourri modulating by proportioning is poured in mould, on shaking table, vibrated to guarantee the movable short side plate of opposite side on the discharge bonnet of bubble;
(4) before potpourri just solidifies, all sheet metals are extracted;
(5), after the complete moulding of thing to be mixed, by the order of cutting top blind flange, movable short side plate, movable long side plate, cutting backing plate at bottom, carry out form removal;
(6) test specimen after the demoulding carries out maintenance under the curing condition of constant temperature, constant humidity, until reach the length of time of design.
The present invention adopts acrylic material to make top blind flange and backing plate at bottom, is convenient to adopt laser technology to carry out cutting according to the joint geometric parameter of design.And before building simulation material potpourri inserted sheet in advance, guaranteed the accuracy of location, crack.And other material of main parts of mould are stainless steel material or common iron, there is machining precision high, not yielding, can guarantee repeatedly to use and not produce larger making error.Long side plate and two short side plates are set to movable plate, can guarantee the fixing of joint position, are also convenient to build, discharge and the form removal of bubble.Strictly observe proposed method for making, can farthest guarantee approaching of each test specimen matrix material mechanical property.
Compare with the mould that traditional side plate is fixing, interrupted crack rock imitation specimen Collapsible mould builds that cross section is large, bubble is easily discharged, the demoulding is simple and convenient, has greatly improved precision and efficiency that test specimen is made; Adopt acrylic material to make top blind flange and backing plate at bottom, be convenient to adopt laser technology to cut out designed interrupted crack at roof and floor and arrange for how much, improved the accuracy of location, interrupted crack; The plate such as side plate, base plate adopts common iron or stainless steel material, has improved the machining precision of mould, not yielding, and can adopt the multiple connected modes such as screw, bolt, slot realize mould detachable function, can be repeatedly used; Each plate of mould almost all detachably, is convenient to build, bubble is discharged and form removal is convenient.
The present invention to the inserted sheet in the installation and removal order of each plate of mould and test specimen manufacturing process, build, the operation steps such as paddle, form removal, maintenance standardizes, and guaranteed quality and standardization that test specimen is made.
The above; be only the present invention's embodiment preferably, but protection scope of the present invention is not limited to this, is anyly familiar with in technical scope that those skilled in the art disclose in the present invention; the variation that can expect easily or replacement, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.
Claims (4)
1. the making mould of an interrupted crack rock imitation specimen, it is characterized in that, comprise base plate, described base plate is provided with fixed length side plate and movable long side plate, between the outside of described fixed length side plate and described base plate, be provided with stiffening rib, the outside of described movable long side plate is provided with Bolted End-plate on base plate, and described Bolted End-plate is provided with side bolt, and the inner of described side bolt is against the outside of described movable long side plate;
Described fixed length side plate is provided with two pairs of relative grooves with the inner side of movable long side plate, is inserted with respectively movable short side plate in every pair of groove;
On base plate between described fixed length side plate, movable long side plate and two movable short side plates, be placed with cutting backing plate at bottom, the top of two movable short side plates is placed with cutting top blind flange, on described cutting top blind flange and cutting backing plate at bottom, is processed with cutting.
2. the making mould of interrupted crack rock imitation specimen according to claim 1, it is characterized in that, the bottom of described fixed length side plate is screwed on base plate, described Bolted End-plate and stiffening rib are welded on base plate, and the bottom of described movable long side plate is connected on base plate by base plate screw.
3. the making mould of interrupted crack rock imitation specimen according to claim 2, it is characterized in that, described base plate, fixed length side plate, movable long side plate, movable short side plate, stiffening rib, Bolted End-plate, bolt all adopt stainless steel material or common iron, and described cutting top blind flange and cutting backing plate at bottom adopt acrylic material.
4. a method for the making Mold Making test specimen of the interrupted crack rock imitation specimen described in claim 1,2 or 3, is characterized in that, comprises step:
The long side plate of installation activity on base plate, and fix with base plate screw and side bolt tightening;
Insert the movable short side plate of a side, place cutting top blind flange and cutting backing plate at bottom, and sheet metal is inserted in cutting according to how much, the joint of design arrangement mode;
The simulation material flow-like potpourri modulating by proportioning is poured in mould, on shaking table, vibrated, treat the movable short side plate of opposite side on the discharge bonnet of bubble;
Before potpourri just solidifies, all sheet metals are extracted;
After the complete moulding of thing to be mixed, by the order of cutting top blind flange, movable short side plate, movable long side plate, cutting backing plate at bottom, carry out form removal;
Test specimen after the demoulding carries out maintenance under the curing condition of constant temperature, constant humidity, until reach the length of time of design.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310641618.1A CN103616272B (en) | 2013-11-26 | 2013-11-26 | The making mould of intermittent joints rock simulation test specimen and method |
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| CN201310641618.1A CN103616272B (en) | 2013-11-26 | 2013-11-26 | The making mould of intermittent joints rock simulation test specimen and method |
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| CN103616272B CN103616272B (en) | 2016-02-24 |
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| CN103900882A (en) * | 2014-04-08 | 2014-07-02 | 中国矿业大学 | Rock test piece die for triaxial compression test on intermittent double-fracture rock |
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| CN110057636B (en) * | 2019-04-15 | 2024-01-30 | 中国矿业大学 | Mould for manufacturing rock sample with anchor rod and crack and manufacturing method of rock sample |
| CN110450263A (en) * | 2019-06-28 | 2019-11-15 | 山东科技大学 | A kind of tools that prefabricated joint samples are adjusted, mold and method |
| CN111413171B (en) * | 2020-04-16 | 2021-06-01 | 武汉理工大学 | Method for manufacturing sample containing non-through cross joint |
| CN111413171A (en) * | 2020-04-16 | 2020-07-14 | 武汉理工大学 | Method for manufacturing sample containing non-through cross joint |
| CN114323845A (en) * | 2021-12-16 | 2022-04-12 | 山西潞安环保能源开发股份有限公司常村煤矿 | Manufacturing tool and method for jointed rock mass |
| CN117074150A (en) * | 2023-07-18 | 2023-11-17 | 中国矿业大学(北京) | Preparation device and preparation method of joint fracture similar simulated rock stratum sample |
| CN117074150B (en) * | 2023-07-18 | 2024-03-19 | 中国矿业大学(北京) | Preparation device and preparation method of joint fracture similar simulated rock stratum sample |
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