An Innovative Approach of Drilling Process Monitoring for Slope Characterization in Mountainous Regions
In Hong Kong, there are so many drill works for landslide prevention, such as drilling holes for soil nailing. To recognize the geotechnical condition of slope in detail based on these drillholes, we have developed and invented the drilling process monitoring (DPM) technique to accurately and quickly quantify and characterize the mechanical strength distribution beneath the slope surface. This technique is associated with the conventional air-driven rotary-percussive drilling machines with down-the-hole hammer. This drilling machine is manually portable to quickly form holes of upto 100 m deep in sloping ground. Such ground can comprise any kinds of geomaterials from soft or loose geomaterials such as caverns, clay or sand to extremely hard or strong geomaterials such concrete or granite. Therefore, we have proposed an innovative approach by using DPM method to accurately and quickly quantify the ground conditions in slopes in mountainous regions. It is trusted that the proposed approach will be able to upgrade our current slope engineering practice in mountainous regions.
Chunliang Zhang and Paul P. Lin
J. Chen et al., "An Innovative Approach of Drilling Process Monitoring for Slope Characterization in Mountainous Regions", Applied Mechanics and Materials, Vols. 226-228, pp. 2088-2092, 2012