Stirring device for soil body improvement test in construction of soil pressure balance shield

Abstract

The invention relates to a stirring device for a soil body improvement test in the construction of a soil pressure balance shield. The stirring device can be used for an indoor stirring test for testing the frictional property and the stirring torque of a soil body. The device is characterized in that a beam is arranged above a frame-shaped bracket, and a motor, a motor transmission and an ampere meter are arranged on the beam; stirring buckets are fixed on a base, the base is arranged on the frame-shaped bracket, and stirring blades are arranged in each stirring bucket and connected with an output shaft of the motor through a rotating shaft; a series of fixing devices on which stirring buckets in different sizes can be arranged is arranged on the base, and the fixing devices can lift and horizontally slide through a lifting frame at the bottom of the bracket and a base rail; and a computer is connected with the ampere meter so as to record the change process of the motor current along with the time during the stirring process in real time. The invention is used for the indoor stirring test for testing the frictional property and the stirring torque of the soil body, is suitable for a plurality of soil layers and has the advantages of simple and convenient test procedure, real-time current change recording and favorable testing effect.

Description

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AI Technical Summary

Benefits of technology

This technology allows us to measure how well two materials mix together when they are mixed by rotating an agitation tool called a mixing cup that holds them tightly inside another container like a tube or jar. By measuring this changes from one material's state to other materials we get more accurate data on their properties compared against previous methods such as experiments conducted beforehand without any further analysis being done at once.

Problems solved by technology

This patented technical problem addressed in this patents relates to improving the quality of ground underground during drilling operations for oil wells due to low levels of sand and other debris found near sandsy areas caused by cutting tools used at depths below sea level. Existing solutions involve increasing the power output from an electric motor driving one end of a long spiral shaft called the rotating bit, which helps mix up any loose material around it before entering into the hole. However, these existing techniques only work effectively when the surrounding terrain contains large rocks like gravel.

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