基于Flac3D验证锚杆在层状岩体中的优化锚固角度

Verification of Optimal Anchoring Angle of Anchor in Layered Rock Mass Based on Flac3D

为验证得到在含有层理面岩石体中锚杆优化锚固角度的正确性,基于优化锚固角度的力学推导计算式45°+φ_(j)/2-α,采用数值模拟软件Flac3D建立含层理面岩石边坡进行数值模拟。通过数值模拟结果表明,该计算公式能够用于含层理面岩石体边坡锚杆锚固角度的计算,并得到锚杆在含层理面岩石体中的受力变化规律和对边坡稳定性的影响,研究结果可为工程建设提供依据和参考。

In order to verify the correctness of the optimal anchorage angle of the bolt in the rock body with bedding plane,the mechanical formula of 45°+φ_(j)/2-αbased on the optimal anchorage angle is derived in this paper.The numerical simulation software Flac3D is used to establish a rock slope with bedding plane for numerical simulation.Through the numerical simulation results,the calculation formula can be used to calculate the anchor angle of rock slope with bedding plane,and the stress variation law of anchor in rock slope with bedding plane and its influence on slope stability are obtained.The conclusion can provide basis and reference for engineering construction.