一种基于FEM-SPH自适应转换的TBM双滚刀破岩数值模拟与参数优化方法

By using the FEM-SPH adaptive conversion method, the problems of local large deformation and discontinuous fracture during the TBM cutter rock breaking process were solved, achieving high-precision numerical simulation and parameter optimization, thereby improving rock breaking efficiency and equipment service life.

CN122174577BActive Publication Date: 2026-07-17SHANDONG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHANDONG UNIV
Filing Date
2026-05-11
Publication Date
2026-07-17

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Abstract

本发明涉及岩石破碎数值模拟与隧道掘进参数优化技术领域，提供了一种基于FEM‑SPH自适应转换的TBM双滚刀破岩数值模拟与参数优化方法，其包括如下步骤：构建三维双滚刀破岩计算模型；为所述岩石模型赋予岩石弹塑性损伤本构关系，并设置自适应转换判据；对模型施加边界条件并执行先压入后切削的分步加载控制；执行FEM‑SPH自适应耦合求解；提取响应数据并依据载荷特征划分稳定切削阶段，剔除瞬态过渡阶段数据；对不同刀间距和 / 或不同贯入度工况下的双滚刀协同破岩效果进行评价，并输出优选参数。本方案不仅能够提高滚刀破岩过程数值模拟的真实性和稳定性，而且能够为TBM滚刀布置与施工参数优化提供具有工程说服力的技术支撑。
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