Hypabyssal rock sand and soil type stratum overall deformation modulus parameter obtaining method

Abstract

The invention relates to the field of geological engineering, discloses a hypabyssal rock sand and soil type stratum overall deformation modulus parameter obtaining method and solves the problem of no method aiming at hypabyssal rock sand and soil type stratum overall deformation modulus parameter choice currently. The method comprises the steps: firstly, investigating and testing macrogeological features, macro mechanical characters and stratum features of hypabyssal rock sand and soil type stratums and dividing different types of areas aiming at the specific hypabyssal rock sand and soil type stratums; then performing deformation test on the stratums within all types of area ranges and obtaining corresponding deformation modulus of different types of stratums of all the divided areas; finally, calculating to obtain overall deformation modulus parameters according to the corresponding deformation modulus of the different types of stratums of all the divided areas and by combining with region areas of all types of the stratums. The hypabyssal rock sand and soil type stratum overall deformation modulus parameter obtaining method disclosed by the invention is suitable for hypabyssal rock sand and soil type stratum overall deformation modulus parameter choice. The hypabyssal rock sand and soil type stratum overall deformation modulus parameter obtaining method disclosed by the invention is suitable for facial models with sparer exploratory points.

Description

technical field [0001] The invention relates to the field of geological engineering, in particular to a method for obtaining comprehensive deformation modulus parameters of semi-diagenetic sand and soil strata. Background technique [0002] Semi-diagenetic strata are sand and soil strata with incomplete sedimentary diagenesis of the Tertiary system, which have the characteristics of soil and rock, and they are obviously different from soil and rock in the normal sense. In terms of composition, structure and structure, they have the characteristics of part soil and part rock. How to determine the deformation modulus of this type of formation has not been clearly stipulated in various current domestic codes. The physical mechanics of strata of different semidiagenetic types are quite different, and the distribution and combination forms of various eroded semidiagenetic strata are complicated, and the regularity is not strong. The degree of work and research of this kind of st...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a method for obtaining comprehensive deformation modulus parameters of semi-diagenetic sand and soil strata, and to solve the problem that there is no method for obtaining the value of comprehensive deformation modulus parameters of semi-diagenetic sand and soil strata. It provides support for the targeted development of geological survey and testing of similar strata, and also provides a strong basis for the engineering geological classification and engineering treatment design scheme of semi-diagenetic sand and soil strata in the later stage.

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