A small probe abrasion test platform, test method and evaluation method

Abstract

The invention discloses a small-sized probe abrasion test platform, a test method and an evaluation method, which solves the problem that the friction force cannot be measured by rock abrasion in the prior art, and has the beneficial effects of being easy to operate and improving measurement accuracy. The specific scheme is as follows: A small-scale probe abrasion test platform, including a test platform frame, the test platform frame is provided with a movable rock base, and the movable rock base is provided with a rock sample limiter for clamping the rock sample, and the top of the movable rock base A load applying mechanism is provided, the load applying mechanism can move up and down, and applies a load to the measuring probe, the measuring probe is set through the test platform frame, and the test platform is provided with a force sensor at the position where the measuring probe passes to measure the measuring probe The frictional force experienced during the movement.

Description

technical field [0001] The invention relates to the field of civil engineering, in particular to a small probe abrasion test platform, a test method and an evaluation method. Background technique [0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art. [0003] The shield tunneling method / TBM has been widely used in tunnel engineering due to its advantages such as fast excavation speed, not limited by construction site conditions, no impact on ground buildings and traffic facilities, and no noise and disturbance during construction. During the shield tunneling / TBM construction process, tool wear has a very high risk. For example, when constructing in sand and pebble formations, severe tool wear will make it difficult to advance the shield and even be forced to open the warehouse to change tools, which will affect the construction period and cost of the entire project. Bring se...

AI Technical Summary

Problems solved by technology

[0007] 1. The probe is often affected by rock friction during lateral movement, and the original device cannot measure the friction

[0008] 2. The lateral movement device of the rock sample base in the original test device is manually controlled, which is inconvenient to operate and cannot accurately control the lateral movement distance of the base

[0009] 3. In the process of scratching the rock sample with the probe, there is often a loss of heat energy, which cannot be measured by existing devices, regardless of the loss of heat energy, which affects the accuracy of the test results

[0010] 4. In the process of cutting rock samples with the probe, a certain amount of sound energy loss is often generated, which greatly hinders the improvement of the cutting efficiency of the tool on the rock. The existing test device cannot measure the sound energy, which further affects the test. accuracy of results

[0011] 5. The existing rock abrasiveness evaluation index can only start from the physical wear state, and cannot characterize the consumption and transfer process of different energy

Images