Manufacturing method of cemented soil and stone mixed sample

A technology of soil-rock mixture and production method, which is applied in the field of geotechnical engineering tests, can solve the problems of small size, consistent properties, and inability to guarantee the original sample, etc., and achieve the effect of reducing discreteness

Inactive Publication Date: 2016-03-23
HOHAI UNIV
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Problems solved by technology

However, the size of the existing indoor test is small, which cannot guarantee the same prope

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  • Manufacturing method of cemented soil and stone mixed sample
  • Manufacturing method of cemented soil and stone mixed sample

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Embodiment Construction

[0023] Below in conjunction with specific embodiment, further illustrate the present invention, should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention, after having read the present invention, those skilled in the art will understand various equivalent forms of the present invention All modifications fall within the scope defined by the appended claims of the present application.

[0024] like figure 1 As shown, the present invention discloses a method for determining the permeability coefficient of inhomogeneous rock and soil materials based on digital images, comprising the following steps:

[0025] (1) Obtain the geological structure characteristics and macroscopic mechanical properties of the cemented soil-rock mixture on site. Carry out geological surveys on site to study the geological structure characteristics and macro-mechanical properties of cemented soil-rock mix...

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Abstract

The invention discloses a manufacturing method of a cemented soil and stone mixed sample. Firstly, the geological structure characteristics, the macroscopic mechanical properties and basic physical and mechanical parameters of a cemented soil and stone mixed body are acquired; then, according to the model similarity principle, a sample and the size of aggregate of the sample are determined, corresponding aggregate is prepared and evenly mixed according to proportion; finally, the prepared rock soil sample is placed in a pre-manufactured resin mold to be maintained and formed. Compared with the prior art, the manufacturing method has the advantages that the rock and soil mixed sample with the properties (including the cementing varieties, the geological shape and size of the aggregate, grain composition and the like) according with those of an original-shape sample can be obtained through the sample manufacturing steps, and manufacturing and forming can be performed according to the size of a needed standard sample suitable for the corresponding indoor experiment. The defect that properties of an existing indoor experimental sample do not conform with those of the original-shape sample is overcome, the discreteness of an experimental result is reduced, and sample manufacturing and experiments can be repeated.

Description

technical field [0001] The invention relates to the field of geotechnical engineering tests, in particular to a method for preparing a cemented soil-rock mixture sample. Background technique [0002] In nature, the cemented soil-rock mixture is widely distributed, and it is the most important geological body for the occurrence and breeding of geological disasters such as landslides and debris flows. These cemented soil-rock mixtures exist in complex hydrological and geological environments. After reaching the critical instability state, they will show obvious characteristics of accelerated rheological failure. The time of instability and failure is short, which is harmful, The characteristics of strong randomness and difficult governance have caused great losses to engineering construction. Therefore, the cemented soil-rock mixture is one of the unfavorable geological bodies that civil engineering construction focuses on. [0003] Soil-rock mixture is a geological material...

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Application Information

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IPC IPC(8): G01N1/28
CPCG01N1/28
Inventor 张久长杨兰兰孟庆祥王如宾徐卫亚王环玲闫龙俞隽
Owner HOHAI UNIV
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