The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Rock bolt is one of the most important methods in rock engineering for ground stabilization and the anchorage quality is of the most concern in the field. The characterization of bolts is always evaluated by pullout or torque wrench test which are destructive or inaccurate. It is proposed that some nondestructive methods for testing rock bolt anchors has been preliminary tested in the laboratory and...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.