2013年2月1日 · The dimensioning of a fibreglass dowel intervention can be obtained, using the proposed procedure, by analysing the face extrusion, the maximum force induced inside the …

The technique consists in inserting sub-horizontal fibreglass dowels into the core ahead of the excavation face. These dowels are continuously connected to the surrounding rock through …

2012年4月3日 · The technique consists in inserting sub-horizontal fibreglass dowels into the core ahead of the excavation face. These dowels are continuously connected to the surrounding …

2023年11月1日 · In this study, an analytical method named the CCM based on the spherical symmetry hypothesis is responsible for outputting the data of tunnel face deformation, which is …

2023年9月24日 · Fiberglass longitudinal dowels increase the stability forces and decrease the instability forces on the excavation face. Therefore, fiberglass tensile dowels are an effective …

2023年1月1日 · A new theoretical method is proposed to simulate the fiberglass dowels performance in the confinement of the tunnel face in weak rock masses. In this method, to find …

2019年11月21日 · Fiberglass dowels are used widely to stabilize the poor ground for excavating tunnels. Face dowels are installed over the cross-section of the tunnel. Fiberglass …

2013年8月24日 · A new calculation procedure is illustrated in this study for the analysis of the effect on the face stability in shallow tunnels of the following key factors: pre-support …

A new calculation procedure is illustrated in this paper for the analysis of face reinforcement with fibreglass dowels in shallow tunnels. The procedure is based on the limit equilibrium method …

One of the most popular and affordable solutions is the use of face longitudinal dowels, which has benefits including high strength, flexibility, and ease of cutting. In order to examine the …