High-precision three-dimensional soil pressure test device and range adjustment system thereof

Abstract

The invention discloses a high-precision three-dimensional soil pressure test device and a range adjustment system thereof. The device comprises a vertical main dynamometer spring, multiple horizontal dynamometer springs, a bottom plate, an inner cylinder, a central top plate, a side top plate and multiple outer side plates. The device is an inner-outer cylinder system, the inner cylinder is used for measuring vertical soil pressure and soil displacement, and an outer cylinder is used for measuring horizontal soil pressure and soil displacement of surrounding soil. The range adjustment system makes a conductor inside the dynamometer springs generate a magnetic field by electrifying the dynamometer springs, magnetic field force is controlled by controlling the magnitude of a current, stiffness of a dynamometer system is regulated, a range of the test device is controlled, and thus soil pressure real-time monitoring of ultra deep foundation pit soil, excavation soil close to a bridge pier and ultra high side slope internal soil is achieved.

Description

technical field [0001] The invention relates to a high-precision three-dimensional earth pressure testing device and a range adjustment system thereof, which are suitable for the field of civil engineering. Background technique [0002] With the continuous increase of large-scale infrastructure in the field of civil engineering, the scale of super-high and super-long-span buildings, long-span bridges, tunnels, high-speed railways and subways continues to expand. In order to ensure the safety and reliability of the construction process, excavation on high slopes, deep During the construction process of foundation pit excavation and adjacent high-speed railway bridge piers, the displacement field variation parameters of the adjacent soil need to be monitored in real time to avoid huge losses to people's lives and property due to engineering accidents. [0003] Engineering problems such as high slope instability and foundation pit collapse occur from time to time. Facts show th...

AI Technical Summary

Problems solved by technology

[0006] (2) The uncontrollability of the measuring range of the earth pressure testing device

[0007] The controllability of the soil pressure test device itself is poor, and it is difficult to apply to various soils, especially the measurement of soil pressure and displacement with a large buried depth

Images