CN110108529A - A kind of rocks-concrete assembly preparation method of sample - Google Patents
A kind of rocks-concrete assembly preparation method of sample Download PDFInfo
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- CN110108529A CN110108529A CN201910392531.2A CN201910392531A CN110108529A CN 110108529 A CN110108529 A CN 110108529A CN 201910392531 A CN201910392531 A CN 201910392531A CN 110108529 A CN110108529 A CN 110108529A
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- rock
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- rocks
- concrete assembly
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y70/00—Materials specially adapted for additive manufacturing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y80/00—Products made by additive manufacturing
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
- G01N2001/2866—Grinding or homogeneising
Abstract
The invention discloses a kind of rocks-concrete assembly preparation method of sample, the described method comprises the following steps: collection site rock-coagulation local soil type zoarium rock stratum and distribution of pores data；The three-dimensional digital model of rock sample is established according to the rock stratum and distribution of pores data；According to raw material needed for the preparation of rock-coagulation local soil type zoarium mechanical property；3D printer prints initial rock sample according to the three-dimensional digital model and raw material；It will be put into mold after rock sample processing, the concrete after stirring is added obtains complete test specimen.The rocks that the present invention obtains-concrete assembly sample really can accurately simulate live rock and coagulation local soil type zoarium situation, and method simple and effective.
Description
Technical field
The present invention relates to a kind of preparation methods of rocks concrete assembly sample, belong to rock mechanics and engineering, geology
With the multi-crossed disciplines technical field of 3D printing technique.
Background technique
In large scale civil engineering and hydraulic engineering infrastructure, concrete structure is all built upon on rock foundation,
And both media are due to the otherness of material, contact surface becomes link most weak in total.Under native state
Rock forms a kind of natural body with special composition and structure in the comprehensive function by a variety of environment, rock itself at
Different and inside is divided to have the defects that different degrees of, including crack, joint, fracture of structural plane etc., these are all seriously affected
The mechanical property of rock.Similarly, there is also a large amount of holes during production is poured and smash for concrete, for example, under free state
Water also contain a certain amount of hole in the cavity that leaves and the cementing place of cement and aggregate after concrete setting molding.Therefore,
Preferably to provide basic data to the safe prevention of infrastructure engineering and early warning, need to carry out the mechanics examination of this assembly
Research is tested, effectively to disclose the stress deformation characteristic of natural geologic body and engineering body assembly and the mechanical characteristic of contact surface.
At present when carrying out this rock-concrete assembly test, is sampled, polished from live rock using bored machine mostly
The integral sample of hand-placed concrete directly on rock afterwards, however there are many shortcomings for this method: utilize machine
The defects of easily destroying rock when device drill hole sampling, cause internal crack further expansion；The rock chosen at the scene,
Its result has discreteness；Grinding process is carried out to the rock fetched and be easy to cause the secondary destruction of rock, and not can guarantee two kinds
The cement plane of medium and the irregularity degree of engineering site are consistent.As the patent of Publication No. CN107271235A passes through drill core twice
Secondary destruction is be easy to cause when obtaining rock and mortar mix sample, but preparing rock sample.
In conclusion existing rock-concrete assembly method for preparing cannot really reflect rock-concrete in Practical Project
The property of bi-body mode, how accurately easily to prepare can reflect actual rock-concrete assembly sample as important and
The research topic needed.
Summary of the invention
In view of the deficiencies of the prior art, the present invention intends to provide a kind of rocks-concrete assembly sample system
Preparation Method cannot really reflect that rock-concrete one two is situated between in Practical Project to solve existing method existing in the prior art
The problem of matter property.
To achieve the goals above, the present invention adopts the following technical scheme that realize:
A kind of rocks-concrete assembly preparation method of sample, the described method comprises the following steps:
Collection site rock-coagulation local soil type zoarium rock stratum and distribution of pores data；
The three-dimensional digital model of rock sample is established according to the rock stratum and distribution of pores data；
According to raw material needed for the preparation of rock-coagulation local soil type zoarium mechanical property；
3D printer prints initial rock sample according to the three-dimensional digital model and raw material；
It will be put into mold after rock sample processing, the concrete after stirring is added obtains complete test specimen.
Further, the rock-coagulation local soil type zoarium is cylindrical body；The rock-coagulation local soil type zoarium concrete
Height ratio with rock is 1:1.
Further, the rock raw material include rock dust and glued binding material；
The rock dust passes through live rock block and carries out pulverization process acquisition.
Further, the glued binding material includes epoxy resin.
Further, the rock sample prints in such a way that 3D printer successively prints.
Further, the mold includes copper mold；The inner wall of the copper mold is coated with oil reservoir.
Further, the method also includes:
Post-processing is carried out to the rock sample；
The post-processing includes checking that the size of rock sample is carried out with the presence or absence of deviation, by the outer surface to rock sample
Polishing is filled up so that rock sample surface roughness is uniform, determine sample filling operation and whether contact surface meets the geometry of model
Form.
Further, the method also includes:
By the complete test specimen in temperature 202oC, relative humidity standard are 95Under conditions of conserve 28d after, use stone mill
It polishes complete test specimen upper and lower end face, obtains the standard cylinder sample of diameter 50mm* height 100mm.
Further, the rock and concrete surface that live rock-coagulation local soil type zoarium is scanned by CT scanner, determine
The combined situation of bi-body mode, wherein rock stratum distribution is poured above mainly based on sedimentary rock-sandstone as fast rigid coagulation
Soil, and measure rock and concrete surface and have two kinds of zigzag, arcuation forms.
Compared with prior art, the beneficial effects of the present invention are:
The method of the present invention is carried out rock-concrete assembly sample using 3D printing technique and is prepared based on mathematical model, safety collar
It protects, printing precision is high, can be good at the practical geological conditions of incorporation engineering, simulates the combined situation of practical bi-body mode；This
Inventive method overcomes coupon results discreteness problem caused by field sampling, and the sample prepared is simple and reliable；Side of the present invention
Method really reflects the out-of-flatness and bonding degree of rock and Combined concrete contact level, is the base of large water conservancy hydroelectric engineering
The analysis of plinth stress test provides reliable method support.
Detailed description of the invention
Fig. 1 is rocks of the invention-concrete assembly preparation method of sample flow chart；
Fig. 2 is the two kinds of geometric shape schematic diagrames in rocks of the invention-concrete assembly media contact face；
Fig. 3 is copper mold schematic diagram in the present invention.
Specific embodiment
The experimental rig is further elaborated with specific implementation with reference to the accompanying drawing, it should be understood that these examples are only used
In illustrate the present invention and do not have to limit the scope of the invention.After the present invention has been read, those skilled in the art are for this hair
The modification of bright various equivalent forms falls within the application range defined in the appended claims.
As shown in Figure 1, a kind of rocks-concrete assembly preparation method of sample, described method includes following steps:
Step 1, the geologic survey of Practical Project is carried out, the geometric shape of collection site rock-coagulation local soil type zoarium contact surface,
The data such as rock stratum and distribution of pores.
Conduct a geological survey to Practical Project, the actual sample of collection site different zones rock and coagulation local soil type zoarium into
Row research, the surface of rock and concrete is scanned by CT scanner, measures rock stratum and distribution of pores and different medium contact
The geometric shape in face is prepared to simulate the irregularity degree of contact surfaces of different media below.
Rock stratum distribution is poured above as fast rigid concrete mainly based on sedimentary rock-sandstone, and measures rock and coagulation
Soil contact face has two kinds of zigzag, arcuation forms, as shown in Figure 2.
Step 2, according to the rock stratum and distribution of pores measured, the 3-dimensional digital mould of lower part rock sample is established with computer
Type.
Rock-coagulation local soil type zoarium is neat cylindrical body, and the height ratio of top concrete and lower part rock is 1:1, root
According to the distribution of pores and geometric shape measured, by the 3-dimensional digital of the 3DMAX software building assembly sample on computer
Model.
Step 3, required rock raw material when preparing 3D printing according to the mechanical property of practical combinations body: rock institute is prepared
The rock dust and glued binding material needed.
Using sandstone powder as the printing raw material of lower part rock sample, the rock block of the optional enchashment field of sandstone powder into
Row pulverization process, powder diameter need to meet the printing demand of 3D printer, and glued binding material chooses the biggish ring of adhesion strength
Oxygen resin.
Step 4, three-dimensional digital model is input in 3D printer, raw material loading printer is printed into initial lower part
Rock sample.
The lower part rock three-dimensional digital model established before is imported in Project 660Pro3D intelligence printer, powder
It is fitted into printer, prints initial rock sample by layer-by-layer printing.
Step 5, it is put into copper mold as shown in Figure 3 after carrying out post-processing to rock sample, it is mixed after stirring is added
Solidifying soil, standing of vibrating about rear demoulding for 24 hours, obtains complete test specimen.
Mainly include to the post-processing of rock sample check the size of sample with the presence or absence of deviation, to sample outer surface into
Row polishing is filled up, and is kept specimen surface roughness uniform, can be simulated actual contact region feature, and determine that sample fills by CT scan
It fills out degree and whether contact surface meets the geometric shape of model.
Lubricating oil is painted to copper mould inner wall, avoids disassembly process that from damaging sample, lower part rock sample is put into mould
Tool, concrete are weighed after the raw materials such as suitable fast hydraulic cement, quartz sand and water stir by match ratio and mold are added, slowly uniformly
Demoulding after standing vibrate for 24 hours, obtains complete test specimen.
Step 6, with stone mill polishing sample upper and lower end face after complete sample conserves 28 days, standard cylinder sample is obtained.
The obtained complete test specimen is in temperature 202, relative humidity standard is 95Under conditions of conserve 28d after, use
Stone mill polishing sample upper and lower end face, obtains the standard cylinder sample of diameter 50mm* height 100mm.
This method application 3D printing technique, the sample of preparation can sufficiently simulate the combination of rock and concrete in Practical Project
Situation, and method for making sample is easy, efficient.
Below for preparing Sichuan engineering site blueness sandstone-coagulation local soil type zoarium, illustrate a type rock of the invention
Stone-concrete assembly preparation method of sample is as follows:
(1) on-site land survey and geologic survey in situ are utilized, measures the green sandstone in scene-coagulation local soil type zoarium using CT scanner
Rock stratum and distribution of pores, the geometric shape of two media contact surface are mainly arcuation.
(2) according to the rock stratum and distribution of pores measured, with the 3-dimensional digital mould of 3DMAX software building lower part rock sample
Type, and exporting is stl formatted file.
(3) it chooses the green sandstone that scene is fetched and carries out pulverization process, powder diameter is controlled 50Left and right, the glue of powder
It closes binding material and is chosen for epoxy resin.
(4) the lower part rock three-dimensional digital model file of foundation is imported in Project 660Pro3D intelligence printer,
Powder and glue are fitted into printer prints initial rock sample by layer-by-layer printing.
(5) rock sample printed is post-processed, sample filling operation and hole is determined by CT scan
Whether distribution meets the requirements, and then paints two layers of lubricating oil to copper mold, rock sample is put into mold lower layer, mold glue
Band wraps.Concrete is by 52.5 fast rigid portland cements, quartz sand, water, high-efficiency water-reducing agent of poly-carboxylic acid (liquid) and silicon
Ash composition, match ratio 1:0.5:0.25:0.01:0.08, the cement of selection, sand dosage are determined by calculation, according to practical examination
Water consumption can suitably be increased by mixing situation, and be stirred evenly.This process needs to calculate related aggregate in strict accordance with code requirement and uses
Amount.It is slowly uniformly added into mold and is vibrated using funnel after uniform stirring, vibrated and stand demoulding for 24 hours, obtain complete test specimen.
(6) the complete test specimen obtained is in temperature 202 oC, relative humidity standard are 95Under conditions of conserve 28d after, use
Stone mill polishing sample upper and lower end face, obtains standard cyan sandstone-coagulation local soil type zoarium sample of diameter 50mm* height 100mm.
Particular embodiments described above, pair present invention solves the technical problem that, technical scheme and beneficial effects carry out
Be further described, should the technical means disclosed in the embodiments of the present invention be not limited only to skill disclosed in above embodiment
Art means, also include technical solutions formed by any combination of the above technical features.It should be pointed out that for the art
For those of ordinary skill, various improvements and modifications may be made without departing from the principle of the present invention, these improvement
Also it is considered as protection scope of the present invention with retouching.
Claims (8)
1. a kind of rocks-concrete assembly preparation method of sample, which is characterized in that the described method comprises the following steps:
Collection site rock-coagulation local soil type zoarium rock stratum and distribution of pores data；
The three-dimensional digital model of rock sample is established according to the rock stratum and distribution of pores data；
According to raw material needed for the preparation of rock-coagulation local soil type zoarium mechanical property；
3D printer prints initial rock sample according to the three-dimensional digital model and raw material；
It will be put into mold after rock sample processing, the concrete after stirring is added obtains complete test specimen.
2. a kind of rocks according to claim 1-concrete assembly preparation method of sample, which is characterized in that the rock-
Coagulation local soil type zoarium is cylindrical body；The height ratio of the rock-coagulation local soil type zoarium concrete and rock is 1:1.
3. a kind of rocks according to claim 1-concrete assembly preparation method of sample, which is characterized in that
The rock raw material include rock dust and glued binding material；
The rock dust passes through live rock block and carries out pulverization process acquisition.
4. a kind of rocks according to claim 3-concrete assembly preparation method of sample, which is characterized in that
The gluing binding material includes epoxy resin.
5. a kind of rocks according to claim 1-concrete assembly preparation method of sample, which is characterized in that
The rock sample prints in such a way that 3D printer successively prints.
6. a kind of rocks according to claim 1-concrete assembly preparation method of sample, which is characterized in that
The mold includes copper mold；The inner wall of the copper mold is coated with oil reservoir.
7. a kind of rocks according to claim 1-concrete assembly preparation method of sample, which is characterized in that the method
Further include:
Post-processing is carried out to the rock sample；
The post-processing includes checking that the size of rock sample is carried out with the presence or absence of deviation, by the outer surface to rock sample
Polishing is filled up so that rock sample surface roughness is uniform, determine sample filling operation and whether contact surface meets the geometry of model
Form.
8. a kind of rocks according to claim 1-concrete assembly preparation method of sample, which is characterized in that the method
Further include:
By the complete test specimen in temperature 202 oC, relative humidity standard are 95Under conditions of conserve 28d after, use stone mill
It polishes complete test specimen upper and lower end face, obtains standard cylinder sample.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110967237A (en) * | 2019-12-24 | 2020-04-07 | 贵州大学 | Concrete test piece with three-dimensional built-in cracks and manufacturing method thereof |
| CN112098187A (en) * | 2020-10-19 | 2020-12-18 | 安徽理工大学 | Method for testing stability of coal pillar-artificial dam complex connection structure |
| CN112268774A (en) * | 2020-11-11 | 2021-01-26 | 石家庄铁道大学 | Sample preparation device and process for mechanical test of frozen soil and concrete contact surface |
| CN112480601A (en) * | 2020-10-19 | 2021-03-12 | 煤炭科学研究总院 | Rock-like similar material and preparation method thereof |
| CN114889124A (en) * | 2022-05-23 | 2022-08-12 | 昆明理工大学 | Preparation method of rock mechanics experiment test piece |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013043908A1 (en) * | 2011-09-20 | 2013-03-28 | The Regents Of The University Of California | 3d printing powder compositions and methods of use |
| CN104515696A (en) * | 2014-12-09 | 2015-04-15 | 河海大学 | Method for preparation of columnar jointed rock mass similar material sample by 3D printing technology |
| CN104807685A (en) * | 2015-05-19 | 2015-07-29 | 中国矿业大学 | Joint test specimen method using 3D (three-dimensional) printing for making structure surface containing specific geometrical characteristics |
| CN105352884A (en) * | 2015-05-20 | 2016-02-24 | 天地科技股份有限公司 | Experiment method and experiment member for testing bond strength of concrete and coal, rock or concrete |
| CN105675365A (en) * | 2016-01-18 | 2016-06-15 | 河海大学 | Method for preparing fractured rock mass samples with filler |
| CN106769322A (en) * | 2017-01-11 | 2017-05-31 | 河海大学 | A kind of prismatical joint rock mass preparation method of sample of cylinder containing stomata |
| CN108593373A (en) * | 2018-01-30 | 2018-09-28 | 上海理工大学 | The method for preparing rock joint shear rheological test sample based on 3D printing technique |
| WO2018182632A1 (en) * | 2017-03-30 | 2018-10-04 | Halliburton Energy Services, Inc. | Methods of reconstituting cores, formation cores with actual formation materials for lab testing |
| CN108819215A (en) * | 2018-05-22 | 2018-11-16 | 中国石油大学(北京) | Unconventional petrophysical model 3D printing method and apparatus in high precision |
| CN109001237A (en) * | 2018-09-25 | 2018-12-14 | 长安大学 | A kind of rock mass internal structure production method based on CT scan and 3D printing |
| CN109253910A (en) * | 2018-10-30 | 2019-01-22 | 哈尔滨工业大学 | The method and artificial core finished product of artificial core are prepared based on 3D printing technique |
-
2019
- 2019-05-13 CN CN201910392531.2A patent/CN110108529A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013043908A1 (en) * | 2011-09-20 | 2013-03-28 | The Regents Of The University Of California | 3d printing powder compositions and methods of use |
| CN104515696A (en) * | 2014-12-09 | 2015-04-15 | 河海大学 | Method for preparation of columnar jointed rock mass similar material sample by 3D printing technology |
| CN104807685A (en) * | 2015-05-19 | 2015-07-29 | 中国矿业大学 | Joint test specimen method using 3D (three-dimensional) printing for making structure surface containing specific geometrical characteristics |
| CN105352884A (en) * | 2015-05-20 | 2016-02-24 | 天地科技股份有限公司 | Experiment method and experiment member for testing bond strength of concrete and coal, rock or concrete |
| CN105675365A (en) * | 2016-01-18 | 2016-06-15 | 河海大学 | Method for preparing fractured rock mass samples with filler |
| CN106769322A (en) * | 2017-01-11 | 2017-05-31 | 河海大学 | A kind of prismatical joint rock mass preparation method of sample of cylinder containing stomata |
| WO2018182632A1 (en) * | 2017-03-30 | 2018-10-04 | Halliburton Energy Services, Inc. | Methods of reconstituting cores, formation cores with actual formation materials for lab testing |
| CN108593373A (en) * | 2018-01-30 | 2018-09-28 | 上海理工大学 | The method for preparing rock joint shear rheological test sample based on 3D printing technique |
| CN108819215A (en) * | 2018-05-22 | 2018-11-16 | 中国石油大学(北京) | Unconventional petrophysical model 3D printing method and apparatus in high precision |
| CN109001237A (en) * | 2018-09-25 | 2018-12-14 | 长安大学 | A kind of rock mass internal structure production method based on CT scan and 3D printing |
| CN109253910A (en) * | 2018-10-30 | 2019-01-22 | 哈尔滨工业大学 | The method and artificial core finished product of artificial core are prepared based on 3D printing technique |
Non-Patent Citations (2)
| Title |
|---|
| QUAN JIANG等: "Reverse modelling of natural rock joints using 3D scanning and 3D printing", 《COMPUTERS AND GEOTECHNICS》 * |
| 项伟等: "冻融循环条件下岩石-喷射混凝土组合试样的力学特性试验研究", 《岩石力学与工程学报》 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110967237A (en) * | 2019-12-24 | 2020-04-07 | 贵州大学 | Concrete test piece with three-dimensional built-in cracks and manufacturing method thereof |
| CN112098187A (en) * | 2020-10-19 | 2020-12-18 | 安徽理工大学 | Method for testing stability of coal pillar-artificial dam complex connection structure |
| CN112480601A (en) * | 2020-10-19 | 2021-03-12 | 煤炭科学研究总院 | Rock-like similar material and preparation method thereof |
| CN112480601B (en) * | 2020-10-19 | 2021-10-26 | 煤炭科学研究总院 | Rock-like similar material and preparation method thereof |
| CN112098187B (en) * | 2020-10-19 | 2023-10-03 | 安徽理工大学 | Coal pillar-artificial dam complex connection structure stability test method |
| CN112268774A (en) * | 2020-11-11 | 2021-01-26 | 石家庄铁道大学 | Sample preparation device and process for mechanical test of frozen soil and concrete contact surface |
| CN112268774B (en) * | 2020-11-11 | 2022-05-24 | 石家庄铁道大学 | Sample preparation device and process for mechanical test of frozen soil and concrete contact surface |
| CN114889124A (en) * | 2022-05-23 | 2022-08-12 | 昆明理工大学 | Preparation method of rock mechanics experiment test piece |
| CN114889124B (en) * | 2022-05-23 | 2023-12-15 | 昆明理工大学 | Rock mechanics experiment test piece preparation method |
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