Deep soil mass load deformation test standard penetrometer and operation method thereof

Abstract

The invention discloses a deep soil mass load deformation test standard penetrometer successively including from top to bottom a guide rod, a hammer cushion, a sounding rod and a hydraulic penetrationsystem, a displacement sensor is arranged in the hydraulic penetration system, the guide rod is sheathed with a pilereing hammer, the telescopic end of the hydraulic penetration system is connected with a standard penetrometer body, and the invention also discloses an operation method of the deep soil mass load deformation test standard penetrometer. The deep soil mass load deformation test standard penetrometer and the operation method thereof solve the shortcomings that domestic standard penetration test systems cannot evaluate underground soil mass load deformation rules and static parameters, has the advantages of simple structure, good quality control, convenient operation, fast detection speed, high measurement efficiency, detection result accuracy and reliability, and good repeatability, and provides a powerful testing tool for civil engineering exploration and practice.

Description

technical field [0001] The invention relates to a standard penetrator and an operating method, in particular to a standard penetrator and an operating method for load deformation testing. Background technique [0002] The standard penetration test has a long history of application in the field of civil engineering investigation. It refers to the use of a pressure device to press a cylindrical standard penetrator into the soil layer through a probe rod. To judge the engineering properties of the underground soil, and then determine some basic physical and mechanical properties of the soil, such as the deformation modulus of the soil, the allowable bearing capacity of the soil, etc. indoor test. The standard penetration test has been widely used at home and abroad, and is one of the most commonly used in-situ test methods. [0003] From a mechanical point of view, the impact number provided by the standard penetration test is the strength characteristic of the soil under dyn...

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Problems solved by technology

[0005] Purpose of the invention: The purpose of the present invention is to address the deficiencies of the prior art, to provide a standard penetrator for deep soil load deformation testing, and the operation method of the standard penetrator, in order to solve the problem of the standard penetration test system Disadvantages of not being able to evaluate the law of load deformation and static parameters of underground soil

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