Loading force measuring device for slope model experiment and loading fixing method of loading force measuring device

Abstract

The invention discloses a loading force measuring device for a slope model experiment and a loading fixing method of the loading force measuring device. The loading force measuring device comprises a bracket, wherein the bracket comprises a smooth rod and a threaded rod which are mutually parallel; the bottom end of the smooth rod is fixedly arranged on a base; a horizontal plate is arranged between the top ends of the smooth rod and the threaded rod; scales are arranged on the horizontal plate; the bottom end of the threaded rod is connected with the base through a second rolling bearing; the top end of the threaded rod penetrates through the horizontal plate; a rotating disk is arranged at the top end of the threaded rod; a first rolling bearing is arranged in the position where the top end of the threaded rod penetrates through the horizontal plate; an adjusting platform is arranged on the smooth rod and the threaded rod; the adjusting platform can move in the vertical direction. Through the adoption of the structure, prestressed anchorage is carried out according to practical construction work, and the stress change of an anchor rope is measured in real time, so that stability of experimental data is guaranteed, and the anchoring effect of practical construction site and the stability condition of the slope can be accurately judged with high precision.

Description

technical field [0001] The invention relates to the field of slope model experiment equipment, in particular to a loading force-measuring device and a loading fixing method for slope model experiments. Background technique [0002] At present, many large-scale projects are built on foundations with complex geological conditions, and the existence of unfavorable geological structures has become a key factor affecting the smooth completion and safe operation of projects. The geomechanics model can not only simulate the characteristics of the engineering structure but also approximate the impact of rock mass faults, fissures, joints and other unfavorable geological bodies on the stability of the engineering structure. Therefore, corresponding anchoring devices will be provided. [0003] In the construction of large-scale geotechnical engineering, prestressed anchorage technology has become the most common geotechnical reinforcement technology. The prestressed anchor cable can ...

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Problems solved by technology

[0004] Shandong University has introduced a kind of method (patent number is ZL101343882A) that is used for model test miniature prestressed anchor cable and its embedding and loading, prefabricated anchor hole in the model prefabricated block, and it is masonry in the model body, but its Using springs and bolts as its loading method, in the case of irregular slopes or faults in the slope, the production of prefabricated blocks will be limited, so it is not suitable for model bodies that are poured in layers and classified, and the springs will be buried at the same time Loading inside the model body, due to the elasticity of the spring, the spring may shake slightly during the loading process, which will affect the overall stability of the model, and the detected data will produce certain errors; Chinese Journal of Rock Mechanics and Engineering (2007, No. 26) In the model test, combining multiple anchor cables in the actual project into one cannot accurately simulate the distribution of the anchor cables in the actual project. It controls the anchoring force through the bolt process, and cannot truly simulate the measurement of the anchoring force during the excavation process. Variety

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