In-situ tester for horizontal resistance coefficient of deep formation

Abstract

The invention discloses a deep stratum horizontal resistance coefficient in-situ tester. The deep stratum horizontal resistance coefficient in-situ tester comprises an elevating mechanism, a loading mechanism, a positioning mechanism, a test mechanism and a controller; the elevating mechanism comprises a truss, the truss is provided with a hoisting machine, and the hoisting machine is connected with the loading mechanism through a steel cable; the loading mechanism comprises a rectangular cabin connected with the steel cable, a bidirectional hydraulic jack is disposed in the rectangular cabin, two ends of the bidirectional hydraulic jack are respectively connected with force transmission beams, and the force transmission beams pass through openings of the rectangular cabin and then are connected with pressure bearing plates; the positioning mechanism comprises bidirectional hydraulic jacks, and two ends of each bidirectional hydraulic jack are connected with cross supports; and the test mechanism comprises stress sensors and displacement sensors, the controller controls the hoisting machine and the bidirectional hydraulic jacks to work, and the stress sensors and the displacement sensors are connected with the controller through data lines. A deep stratum horizontal resistance coefficient can be directly tested, and a guarantee is provided for anti-slide pile design and construction safety.

Description

technical field [0001] The invention belongs to the field of geotechnical engineering and engineering geology, and in particular relates to an in-situ tester for the horizontal resistance coefficient of deep formations. Background technique [0002] Landslide refers to the unfavorable geological phenomenon that the slope rock and soil mass slides along the internal weak zone or failure surface under the action of its own weight and other external inducing factors. It is a major type of geological disaster. Severe landslide disasters often destroy roads, block rivers, bury houses, and cause huge losses of people's lives and property. Therefore, landslide prevention and control engineering is one of the important research and work directions in the field of geotechnical engineering and engineering geology. Landslide prevention and control engineering measures mainly include three categories: retaining engineering, drainage engineering and geotechnical reinforcement engineerin...

AI Technical Summary

Problems solved by technology

Since there is no test device specially used to directly test the horizontal resistance coefficient of rock and soil at different depths, the current design of anti-slide piles mainly selects the horizontal resistance coefficient of rock and soil based on the experience of designers, and there are inevitably some artificial inaccuracies. factor

If the value of the resistance coefficient is too low, it will increase the project cost and cause waste, and if the value of the resistance coefficient is too high, it will leave hidden dangers to the safety of the project

[0007] Therefore, we urgently need a device that can directly test the horizontal resistance coefficient of deep formations to reduce the hidden dangers of engineering construction caused by inaccurate horizontal resistance coefficients.

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