Bearing Characteristics of Rock Joints under Different Bolts Installation Angles and Their Underlying Mechanism
نویسندگان
چکیده
To explore the mechanical failure characteristics of bolted joints under different bolt installation angles and effect bolting on shear strength joints, a numerical model structural plane anchoring with was established based improved Pile element, series uniaxial compression tests were carried out to systematically study effects angle bolts. The results show that as increases, peak stress specimen is first constant then decreases, elastic modulus decreases nonlinearly. When lower than 45°, bearing capacity higher. interaction between specimen’s force mainly concentrated at intersection area where nut gaskets are installed both ends bolt. horizontal higher in With an increase angle, plastic zone volume anchored joint increases linearly exponential function. slowly, when rapidly. small, contribution axial greater force. In contrast, large, nonlinearly, linearly, resistance optimal about but also changes constantly influence factors such type, rock strength, external load.
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ژورنال
عنوان ژورنال: Sustainability
سال: 2023
ISSN: ['2071-1050']
DOI: https://doi.org/10.3390/su151712876