Geomechanical model similar material for simulating V-class surrounding rock

Abstract

The invention discloses a geomechanical model similar material for simulating V-class surrounding rock, and belongs to the field of engineering similar simulation materials. The similar material is formed by mixing the following components in parts by weight: 380-430 parts of quartz sand, 140-200 parts of fly ash and 60-100 parts of liquid detergent, wherein cohesion measured is 0.476-17.774MPa and an internal friction angle is 13.393-22.264 degrees. Furthermore, the invention discloses influence of the quartz sand, the fly ash and the liquid detergent on the cohesion and the internal friction angle, so as to facilitate a rock mass to simulate required V-class surrounding rock materials differing in performance through regulating mixing amounts conveniently; moreover, the material is simple in preparation process, stable in performance, low in energy consumption, high in efficiency, low in cost, clean and harmless to humans.

Description

technical field [0001] The invention belongs to the field of engineering similar simulation materials, in particular to a geomechanical model similar material for simulating V-type surrounding rocks. Background technique [0002] Due to the development of modern production and construction and science and technology, more and more buildings, such as dams, factory buildings, tunnels, underground power stations, etc., need to be built on rock foundations or rock bodies with complex geological structures. The anti-sliding stability of buildings and the influence of foundation deformation on building structures have become the main contents of geomechanics model test research. [0003] The geomechanics model test is a method of scaled-down research on specific engineering geological problems based on a certain similarity principle. The main purpose of the test is to study the ultimate bearing capacity, failure form, failure mechanism and Deformation distribution properties. Th...

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Problems solved by technology

[0007] 1) In the material preparation process, there are not only problems of high temperature curing and energy consumption, but also the toxic gas emitted during the curing process will endanger human health

[0008] 2) The process is complicated, which increases the production cost. Once the iron powder outer film used is easy to rust, it will affect the stability of the material properties and easily lead to the failure of the test. Similar materials are difficult to simulate weak rock mass

[0009] 3) For the model materials of continuum, some can satisfy the similarity relationship well, but their configuration requires more raw materials, it is difficult to control the mix ratio in the test, and the configuration is difficult; while the materials with simple configuration are in the similarity relationship There are many deficiencies in

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