Unlock instant, AI-driven research and patent intelligence for your innovation.

Soft rock similar model test material and soft rock similar model preparation method

A technology for similar models and test materials, which is applied in the field of soft rock similar model test materials and the preparation of soft rock similar models, can solve the problems of lack of simulated similar materials, and achieve the effects of high adjustability, strong cementation performance, and wide sources

Active Publication Date: 2018-12-21
CHENGDU UNIVERSITY OF TECHNOLOGY
View PDF5 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a kind of similar model test material of soft rock, to solve the existing problem of lacking similar materials for simulating different weak interlayers in the rock mass structure under simulated earthquake action

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
  • Soft rock similar model test material and soft rock similar model preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The soft rock similar model test material of the present embodiment comprises: by weight, 80 parts of aggregate, 32 parts of cement, wherein aggregate comprises 35 parts of 60 mesh quartz sand, 35 parts of 100 mesh quartz sand, 24 parts of 200 mesh quartz sand 6 parts and 6 parts of bentonite. The cementing agent is an organic salt polymer solution with a concentration of 0.8wt%, wherein the organic salt polymer solution includes an aqueous solution of 3wt% sodium carboxymethylcellulose, an aqueous solution of 1wt% polyacrylamide, and an aqueous solution of 1wt% ammonium persulfate.

[0024] The preparation method of the soft rock similar model of the present embodiment comprises:

[0025] S1: Weigh the quartz sand and bentonite according to the above ratio, put them into a container and stir evenly to obtain a uniform aggregate;

[0026] S2: At room temperature, dissolve sodium carboxymethyl cellulose, polyacrylamide and ammonium persulfate in water respectively, and ...

Embodiment 2

[0030] The soft rock similar model test material of the present embodiment includes: by weight, 90 parts of aggregate, 28 parts of cement, wherein the aggregate includes 35 parts of 60 mesh quartz sand, 35 parts of 100 mesh quartz sand, 24 parts of 200 mesh quartz sand 6 parts and 6 parts of bentonite. The cementing agent is an organic salt polymer solution with a concentration of 1.0wt%, wherein the organic salt polymer solution includes an aqueous solution of 4wt% sodium carboxymethyl cellulose, an aqueous solution of 2wt% polyacrylamide, and an aqueous solution of 1.5wt% ammonium persulfate.

[0031] The preparation method of the soft rock similar model of the present embodiment comprises:

[0032] S1: Weigh the quartz sand and bentonite according to the above ratio, put them into a container and stir evenly to obtain a uniform aggregate;

[0033] S2: At room temperature, add water to dissolve sodium carboxymethyl cellulose, polyacrylamide and ammonium persulfate, and then...

Embodiment 3

[0037] The soft rock similar model test material of the present embodiment includes: by weight, 100 parts of aggregate, 24 parts of cement, wherein aggregate includes 35 parts of 60 mesh quartz sand, 35 parts of 100 mesh quartz sand, 24 parts of 200 mesh quartz sand 6 parts and 6 parts of bentonite. The cementing agent is an organic salt polymer solution with a concentration of 1.1wt%, wherein the organic salt polymer solution includes an aqueous solution of 5wt% sodium carboxymethylcellulose, an aqueous solution of 2.5wt% polyacrylamide, and an aqueous solution of 1.5wt% ammonium persulfate.

[0038] The preparation method of the soft rock similar model of the present embodiment comprises:

[0039] S1: Weigh the quartz sand and bentonite according to the above ratio, put them into a container and stir evenly to obtain a uniform aggregate;

[0040] S2: At room temperature, dissolve sodium carboxymethyl cellulose, polyacrylamide and ammonium persulfate in water respectively, a...

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

No PUM Login to View More

Abstract

The invention discloses a soft rock similar model test material and a soft rock similar model preparation method and belongs to the technical field of seismic modeling experiments. The soft rock similar model test material disclosed by the invention is prepared from materials in parts by weight of 80 to 120 parts of aggregate and 16 to 32 parts of cementing agent, wherein the aggregate is preparedfrom materials in parts by weight: 30 to 60 parts of 40 to 60-mesh quartz sand, 20 to 50 parts of 70 to 100-mesh quartz sand, 20 to 30 parts of 170 to 200-mesh quartz sand and 0 to 10 parts of bentolite; the cementing agent is a 0.8 to 1.5wt% organic salt polymer solution. The soft rock similar model preparation method comprises the steps: mixing the aggregate and the cementing, pouring into a mold to be mashed, standing, removing from the mold after 1 day, maintaining under the normal temperature and hardening after 2 to 4 days to obtain a soft rock similar model. The prepared soft rock similar model test material disclosed by the invention has the advantages of better permeability and water stability, relatively lower elasticity modulus and ability in better simulating the soft rock strata hole water pressure change characteristics under the earthquake action; meanwhile, the prepared soft rock similar model test material has the advantages of wide material sources, simpleness in preparation, convenience in maintenance, low preparation cost and no toxin and harm.

Description

technical field [0001] The invention relates to the technical field of earthquake simulation tests, in particular to a soft rock similar model test material and a method for preparing a soft rock similar model. Background technique [0002] Similarity model test is a scale-down research method based on the principle of similarity. It mainly uses similar materials to simulate the characteristics of engineering entities and their geological structures, and studies the safety and stability of geotechnical engineering construction and operation by simulating load action modes, rainfall patterns and other conditions. For a long time, it has been an important method for the safety and stability research and mechanism analysis of various complex geotechnical engineering such as high slopes, dams, underground caverns and mines. [0003] The geological structure is complex, and there are many different types of weak thin layers in the slope rock mass, that is, weak interlayers. Soft...

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
IPC IPC(8): C04B26/28C04B111/54
CPCC04B26/285C04B2111/542C04B14/06C04B14/104C04B24/2652C04B22/14
Inventor 崔圣华裴向军朱凌高会会
Owner CHENGDU UNIVERSITY OF TECHNOLOGY