[最新文献]锚杆加固全饱和断裂多孔介质的数值过程 [11/5/2020]

1 论文

Enriched numerical procedures for bolt reinforced fully saturated fractured porous media 锚杆加固全饱和断裂多孔介质的数值过程

Abstract: Stability analysis of underground structures made in fractured porous continua requires knowledge of rock deformation and pore pressure. Often, reinforcements in terms of rock bolts are installed to enhance the stability and hence the interaction between rock mass and bolt shank becomes inevitable. Extended Finite Element Method (XFEM) has been applied to handle the pre-existing joint planes and rock bolts. Porous media is simulated using Biot’s consolidation theory, whereas fluid flow through fracture is achieved via Cubic law. This paper presents a comprehensive numerical formulation of fractured porous rock media with reinforcement and fluid flow. Apart from solving a benchmark problem, stability of a reinforced tunnel in the vicinity of a joint is also presented using the proposed numerical procedure.

Keywords: XFEM, Biot, Bolt reinforcement, Fractured porous media

摘要：在断裂多孔连续体中进行地下结构稳定性分析需要了解岩石变形和孔隙压力。通常情况下，使用岩石锚杆进行加固以提高稳定性，因此，岩石质量和锚杆柄之间的相互作用变得不可避免。扩展有限元法（XFEM）已被应用于处理预先存在的连接平面和岩石锚杆。多孔介质采用Biot固结理论进行模拟，而流体通过裂缝的流动则通过立方定律实现。本文提出了一个带加固和流体流动的裂缝多孔岩石介质的数值计算公式。除了解决一个基准问题外，还利用提出的数值程序介绍了节理附近加固隧道的稳定性。

2 相关文献

[1] Enriched finite element procedures for analyzing decoupled bolts installed in rock mass

[2] Enriched Finite Element Procedures for Analysis of Bolt Crossing Multiple Rock Joints

[3] An enhanced numerical procedure for modelling fully grouted bolts intersected by rock joint

[4] Modelling of fully grouted rock bolt based on enriched finite element method

[5] Study of Fully Grouted Rock Bolt in Tabas Coal Mine Using Numerical and Instrumentation Methods

[6] XFEM Modelling in Multi-bolted Joints Using a Unified Bolt Preload

Continuum approach to the numerical simulation of material failure in concrete

[7] A critical comparison of several numerical methods for computing effective properties of highly heterogeneous materials

[8] Introduction to eXtended Finite Element (XFEM) Method

[9] Extended finite element method (XFEM) modeling of fracture in additively manufactured polymers

[10] eXtended Finite Element Method (XFEM) in Abaqus

[11] Dynamic extended finite element method (XFEM) analysis of discontinuous media

Note: '相关文献' 是按照Google的排序算法产生出来的.

岩石锚杆和锚索(Rockbolts and Cables)

岩石锚杆锚固节理化岩体产生的楔形效应

GIIC-UDEC操作教程---边坡支护

岩石锚固的机理(Physical Mechanisms of Rock Bolting)

Cording E.J. : 2020年太沙基讲座 (TL56): 地下结构设计和性能分析

Reducing Landslides: 应对滑坡的预防措施(Part I)

Reducing Landslides: 应对滑坡的预防措施(Part II)