Method for simulating weathering slate mass

A simulation method and technology of rock mass, applied in physical model test, material production of indoor model test, simulation field of weathered slate rock mass, can solve problems such as rock mass bedding characteristics without considering structural characteristics such as rock mass fragmentation, Achieve the effect of economical production and overcome errors

Inactive Publication Date: 2015-06-24
DALIAN UNIV OF TECH
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Problems solved by technology

In the previous studies, the physical model tests conducted by geotechnical centrifuges did not consider the structural properties of the rock mass, such as structur

Method used

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Embodiment Construction

[0017] The specific implementation manners of the present invention will be further described below in conjunction with the technical solutions.

[0018] (1) First, determine the thickness of the glass or tiles according to the scale of the geotechnical centrifuge model and the layered thickness of the slate on site. Considering that slate is a kind of flaky metamorphic rock, the present invention utilizes flaky glass or tiles, which are bonded by cementitious materials, to simulate the plate-like structure of slate.

[0019] In a centrifuge, the centrifugal acceleration of N-g will enlarge the model size by N times. For example, at a centrifugal acceleration of 100g, in order to simulate a 0.2m thick slate slice, a glass or porcelain slice with a thickness of 0.2cm can be used.

[0020] (2) One or two or more components of clay, gypsum, and barite powder are used in a certain proportion to be bonded between glass sheets or ceramic sheets to simulate bedding and weak interlay...

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Abstract

The invention belongs to the field of construction engineering and relates to a method for simulating weathering slate mass. The method can be used for physical modeling experiment. Common glass or ceramic chips are adopted for simulating schistose slate; according to the on-site rock mass features, more than one or two compounds of clay, gypsum and blanc fixe are mixed according to a certain proportion, the mixture is adhered among the glass pieces or the ceramic chips, and the stratification and soft rock strata of the rock mass are simulated; the attitude of rock stratum is simulated according to the laying direction of the glass pieces or the ceramic chips; the materials are processed hierarchically by scraping, and the crushing characteristics of natural rock mass are simulated. According to the method, aiming at the simulation for rock mass, the main factors which affect the strength of the rock mass, such as structural surfaces, dip angles, broken degrees and the like, are taken into consideration sufficiently. By means of the slate mass manufactured according to the method, indoor physical modeling experiment can be conducted through the combination of geotechnical centrifuge equipment, and stability analysis and research for critical engineering such as rock slopes and tunnel surrounding rocks in which weathering broken slate mass serves as the main geology condition can be conducted.

Description

technical field [0001] The invention belongs to the field of construction engineering, and relates to a material manufacturing method for an indoor model test, in particular to a simulation method for a weathered slate body, which can be used for a physical model test. Background technique [0002] At present, domestic and foreign research on the stability of rock slopes and tunnel surrounding rocks is mainly concentrated in the field of numerical analysis. Due to the complexity of material production, there are few physical model experiments. In the numerical model test, the determination of the parameters and the selection of the mathematical model often have a great influence on the calculation results. [0003] With the application of geotechnical centrifuges in China, the physical model test under N-g conditions can simulate the stress state of the prototype very well, and has become a relatively reliable analysis method. The centrifuge simulation method uses the centr...

Claims

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Application Information

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IPC IPC(8): G09B23/40
CPCG09B23/40
Inventor 赵维吴昊范宁
Owner DALIAN UNIV OF TECH
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