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Article
Determination of cutting force and failure surface using a blunt cutter under confining condition: analytical modelling
Digital drilling is a common method for detecting the deep rock mass information, but the cutter wear leads to an irregular shape of the rock chip affecting the detecting accuracy. The detecting methodology la...
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Article
Anisotropy on the ductile-to-brittle transition for rock in process of drilling
Anisotropy is an inherent property of rocks. It refers to the different response of the rock properties in each direction. Understanding the anisotropy characteristics of rock failure by drilling has practical...
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Article
Experimental investigation on brittleness characteristics of rock based on the ubiquitiformal complexity: strain rate effect and size effect
Brittleness is a crucial parameter for assessing the mechanical behavior of rocks, including fracturability, drillability, and rockburst tendency. The ubiquitiform geometry has been widely used to describe com...
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Article
Determining Method of Tensile Strength of Rock Based on Friction Characteristics in the Drilling Process
Measuring-while-drilling has been considered as an effective method to determine the mechanical properties of rock. In this paper, drilling models are improved for predicting the rock strength on the basis of ...
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Article
Evaluating the Anisotropy of Drilling Mechanical Characteristics of Rock in the Process of Digital Drilling
The engineering behaviour of rock is strongly associated with the anisotropy, which exists at different scales for construction safety and evaluation of rock properties. It is also well known that the anisotro...
