The authors described the structure of a newly - developed wedge-tube bolt, its reinforcement principles and anchoring performance, and the results of in situ pull test and productive applications.
当前某些新型锚杆有忽视顶锚的不良倾向。作者介绍了新研制的楔管式锚杆的结构、加固原理、锚固性能、及其在现场条件下的拔拉试验与工业应用结果。
The method uses laser speckle technique to record the shift amount of speckle patterns due to micro wedge angles, and thus micro wedge cangles of the test piece are induced.
它利用激光散斑技术，记录了由于微小楔角引起的散斑位移量的散斑图，由此导出被测试件的微小楔角。这种方法具有光路简单、非接触、精度高等特点。
The method uses laser speckle technique to record the shift amount of speckle patterns due to micro wedge angles, and thus micro wedge cangles of the test piece are induced.
它利用激光散斑技术，记录了由于微小楔角引起的散斑位移量的散斑图，由此导出被测试件的微小楔角。这种方法具有光路简单、非接触、精度高等特点。
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