Similar material for small and medium solid-fluid coupled model test and preparation method thereof
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A technology of coupled models and similar materials, applied in the field of material science, can solve the problems of lack of representation, insignificant actual effect, and failure to reflect the actual situation of rock mass
Active Publication Date: 2013-12-18
SHANDONG UNIV OF SCI & TECH
View PDF4 Cites 19 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
[0002] At present, research in the field of similar materials in common geomechanical model tests is generally limited to the two aspects of keeping the material from disintegrating when exposed to water and how to improve the compressive strength. The problem of unstable physical and mechanical properties of force often cannot be accurately applied to solid-fluid coupling
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0056] Take sand, cement, kaolin, vaseline and water in proportion, the total weight is 1000 grams, and the weights of each component are respectively: 750 grams of sand, 60 grams of cement, 65 grams of kaolin, 70 grams of vaseline, and 55 grams of water;
[0057] Experimental results: the uniaxial compressive strength is 0.6Mpa, and the permeability coefficient is 3.87×10 -6cm / s; the modulus of elasticity is 178Mpa, the cohesive force is 76Kpa, and the friction angle is 45 degrees.
Embodiment 2
[0059] Take sand, cement, kaolin, vaseline and water in proportion, the total weight is 1000 grams, and the weights of each component are respectively: 792 grams of sand, 50 grams of cement, 55 grams of kaolin, 55 grams of vaseline, and 48 grams of water;
[0060] Experimental results: the uniaxial compressive strength is 0.5Mpa, and the permeability coefficient is 9.37×10 -5 cm / s; the modulus of elasticity is 144Mpa, the cohesive force is 67Kpa, and the friction angle is 40 degrees.
Embodiment 3
[0062] Take sand, cement, kaolin, vaseline and water in proportion, the total weight is 1000 grams, and the weights of each component are respectively: 717 grams of sand, 81 grams of cement, 110 grams of kaolin, 44 grams of vaseline, and 48 grams of water;
[0063] Experimental results: the uniaxial compressive strength is 0.4Mpa, and the permeability coefficient is 8.54×10 -6 cm / s; the modulus of elasticity is 130Mpa, the cohesive force is 56Kpa, and the friction angle is 34 degrees.
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
PUM
Property
Measurement
Unit
Particle size
aaaaa
aaaaa
Uniaxial compressive strength
aaaaa
aaaaa
Elastic modulus
aaaaa
aaaaa
Login to view more
Abstract
The invention discloses a similar material for a small and medium solid-fluid coupled model test and a preparation method thereof. The similar material is prepared from the following raw material components in percentage by weight: 71.7-79.2% of sand, 2.4-8.1% of cement, 2.4-11.0% of kaolin, 2.0-9.0% of vaseline and 4.6-6.7% of water. The preparation method comprises the following steps: weighting the sand, the cement, the kaolin, the vaseline and the water in proportion; stirring the sand, the cement and the kaolin in a stirrer to form a first mixed material, and standing the first mixed material in a room at a temperature of 25 DEG C; uniformly stirring the water and the vaseline in a vessel to form a second mixed material; stirring the first mixed material and the second mixed material at a normal temperature for 3-5 minutes to form a third mixed material, then placing the third mixed material into a forming die, tamping and forming, standing the material at the room temperature for 24 hours after demolding and the like, thereby preparing the similar material. The prepared similar material has the uniaxial compressive strength of 0.3-0.8Mpa, the elastic modulus of 130-223Mpa, the osmotic coefficient of 7.45*10<-7>-9.37*10<-5>cm/s, the cohesive force of 54-87Kpa and the frictional angle of 34-46 degrees and is suitable for simulating the model tests of rocks with different mechanical properties and osmosis.
Description
technical field [0001] The invention relates to a coupling model test similar material and a preparation method thereof, in particular to a medium-sized solid-fluid coupled model test similar material and a preparation method thereof, belonging to the field of material science and technology. Background technique [0002] At present, research in the field of similar materials in common geomechanical model tests is generally limited to the two aspects of keeping the material from disintegrating when exposed to water and how to improve the compressive strength. The problem of unstable physical and mechanical properties of forces is often not accurately applied to solid-fluid coupling model tests. [0003] In the past, because the conditions for using similar materials were not specified, the actual effect of the research results in large-scale simulation experiments was not obvious, and it could not reflect the actual situation of the rock mass in the engineering state. It was...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.