| For researching into the question of the large-scale underground workshop's anchor rod stress ultra limits, multi-means were adopted in this paper to analyze and study thoroughly. The content and the character of this paper mainly include as follows:1. to study the condition and the measured values of reliability of anchor taseometer under ultimate stress through carrying on the pulling test to all kinds of anchor;2. to test the cohere intensity between reinforcing bar and cement by using the method of the pulling test of middle;3. to study the model test of anchor's working state by making physical model:all kinds of anchor's state is imitated, the characteristic of anchor stress distributing will be studied under all conditions;4. to analyze the characteristic of anchor stress distributing by using the numerical simulation software ANSYS.5. to analyze the reliability of rebar strain meter's readout... |
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