Soil shear strength testing equipment and testing method

A technology of shear strength and testing equipment, which is applied in the direction of applying stable shear force to test material strength, strength characteristics, measuring devices, etc., which can solve the lack of accurate judgment and measurement data that affect surveyors on the stability of soil layers Insufficient precision and other problems, to achieve the effect of improving accuracy
CN111307618AInactive Publication Date: 2020-06-19上海金地工程勘察有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
上海金地工程勘察有限公司
Publication Date
2020-06-19
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses soil shear strength testing equipment and a testing method, and relates to the technical field of soil shear strength testing equipment. The technical problem that a common direct shear apparatus is inaccurate in measurement of shear force borne by soil is solved. According to the technical scheme, the device is characterized by comprising a bottom plate and a shearing boxlocated on the bottom plate; the shearing box comprises a lower box body and an upper box body arranged on the lower box body in a sliding mode. A driving device and a force measuring device are respectively arranged at two ends of the upper surface of the bottom plate in the length direction of the shearing box; the force measuring device comprises a supporting plate, an abutting block and a force measuring ring, an extending strip is vertically arranged on the outer side wall of the upper box and faces the side wall of the force measuring ring, a connecting block is arranged at the end, awayfrom the upper box, of the extending strip, and an abutting groove is formed in the side wall, away from the extending strip, of the connecting block; scale marks are arranged on the upper surface ofthe supporting plate in the length direction of the supporting plate, a stopwatch is arranged on the upper surface of the supporting plate, and the effect of effectively improving the accuracy of thesoil direct shear apparatus for measuring the soil shear strength is achieved.
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Description

technical field

[0001] The invention relates to the technical field of soil shear strength testing equipment, more specifically, it relates to a soil shear strength testing equipment and a testing method. Background technique

[0002] At present, the stability of the soil layer mainly depends on the shear strength of the soil itself. When the shear stress in the soil cake exceeds its own shear strength, the soil cake will slide along any part of its surface or inside. The surface slides, and the whole piece of soil agglomerates and falls apart, which can easily cause slope landslides and the phenomenon that the cultivated layer is difficult to support the cultivation of crops. Soil direct shear instrument is a kind of soil shear strength testing equipment, which can more accurately detect the shear strength that the soil can withstand, and then allow surveyors to evaluate the stability of the soil layer where the soil is located.

[0003] Existing application number is that...

Claims

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