Model similar material for simulating slope dangerous rock mass and preparation method of material

A technology of similar model and dangerous rock mass, applied in the field of slope dangerous rock simulation test, can solve the problems of unable to model cracks, unable to adjust bulk density, mechanical index, unable to meet the simulation of high slope dangerous rock mass, etc., to achieve easy mechanical properties Control, low cost, affordable results

Pending Publication Date: 2021-07-27
四川华能泸定水电有限公司 +2
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] Obviously, the above-mentioned types of model materials either cannot adjust the bulk density and mechanical indicators, cannot model cracks, or are used to simulate relatively complete and hard rock, or are mainly developed for the rock mass of the dam abutment and dam foundation, which cannot meet the requirements of simulating high slopes. Requirements for dangerous rock mass

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
  • Model similar material for simulating slope dangerous rock mass and preparation method of material
  • Model similar material for simulating slope dangerous rock mass and preparation method of material

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0054] A method for preparing a model-similar material for simulating a slope dangerous rock mass, comprising the following steps:

[0055] S1. Mix the barite powder and semi-refined paraffin evenly, then bake in an oven at 100°C for 3 hours, let the paraffin fully melt, soak into the barite powder, take it out and cool to room temperature;

[0056] S2, then add hydraulic oil and ultra-light clay to dry barite powder and semi-refined paraffin, mix evenly, and let stand for 2 hours;

[0057] S3. Finally, sieve the mixed materials to ensure that the paraffin, engine oil, ultra-light clay and barite powder are evenly mixed.

[0058] During the preparation process, the materials were weighed according to the size and bulk density of a single piece of similar material, and then put into the corresponding mold for compression molding, and then the mechanical properties were tested after a week of natural drying in the room. By selecting materials with different ratios, similar mate...

Embodiment 1

[0062] 100 parts of barite powder, 1 part of semi-refined paraffin, 4 parts of hydraulic engine oil, and 30 parts of ultra-light colored clay were made into a test piece with a bulk density of 18KN / m3 by the above preparation method, and then the mechanical performance test was carried out. The results showed that the prepared The compressive strength of the similar material of the dangerous rock mass is 0.14MPa, and the deformation modulus is 11.0MPa.

Embodiment 2

[0064] 100 parts of barite powder, 5 parts of semi-refined paraffin, 7 parts of hydraulic engine oil, and 30 parts of ultra-light colored clay were made into a test piece with a bulk density of 18KN / m3 by the above preparation method, and then the mechanical performance test was carried out. The results showed that the prepared The resulting dangerous rock mass has a compressive strength of 0.07MPa and a deformation modulus of 9.4MPa.

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

PropertyMeasurementUnit
compressive strengthaaaaaaaaaa
melting pointaaaaaaaaaa
particle size (mesh)aaaaaaaaaa
Login to view more

Abstract

The invention discloses a model similar material for simulating slope dangerous rock mass and a preparation method of the material, each raw material has unique functions, barite powder is used as a weighting material, semi-refined paraffin is used as a binder, No.32 hydraulic engine oil is used as a lubricant, and ultralight clay is used as an additive. The finally mixed similar material has the properties of high weight, low strength and low elastic modulus, and meets the mechanical properties of the dangerous rock mass under natural conditions; by changing the ratio of the raw materials, the compressive strength and the deformation modulus of the similar material can be changed under the condition of ensuring the required volume weight, and both the semi-refined paraffin and the No.32 hydraulic engine oil in the raw materials have the effect of changing the mechanical properties of the material; change of the compressive strength and the deformation modulus of the similar material in a large range can be controlled by slightly changing the ratio of the raw materials; and in the preparation process, only the raw materials need to be dried and dewatered, other steps are carried out at room temperature, the preparation process is simple, the preparation efficiency is high, and the cost is relatively low.

Description

technical field [0001] The invention relates to the technical field of slope dangerous rock simulation tests, in particular to a model-like material for simulating slope dangerous rock mass and a preparation method thereof. Background technique [0002] When constructing hydropower stations in the mountainous areas of Southwest my country, they often face the threat of collapse and instability of dangerous rock masses and rockfall disasters on rocky artificial excavation slopes or natural slopes. Especially on the high slope at the exit of the underground cavern group or the high slope on the side of the building, even if a small scale of dangerous rock mass damage or instability occurs, it may cause serious damage to various buildings in the power station and damage national property. pose a threat to the safety of construction workers. At present, although there are some results of numerical calculations and model tests, due to the complexity, uncertainty, suddenness and ...

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
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): C04B26/26
CPCC04B26/26C04B2111/00991C04B2201/50C04B14/368C04B24/00C04B14/10
Inventor 范庆龙李俊峰张良吴少儒李联书聂亮郝利军侯争军杨宝全陈媛王森颢
Owner 四川华能泸定水电有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap