An investigation into the forces acting on a TBM during driving – Mining the TBM logged data

Festa, D.; Broere, W.; Bosch, J.W.

doi:10.1016/j.tust.2012.06.006

Cited by 36 publications

(18 citation statements)

References 7 publications

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“…The Hubertus tunnel is a twin-tube road tunnel located in The Hague, The Netherlands, excavated between 2006 and 2007. Situated in a residential area, the tunnel passes close to the foundations of some houses and in part underpasses several low buildings on a military barracks.The two tunnel tubes, north and south, are 1496.81 m and 1483.59 m long, respectively (Festa et al, 2012).…”

Section: Hubertus Tunnelmentioning

confidence: 99%

Correlation between the kinematics of a Tunnel Boring Machine and the observed soil displacements

Broere

Festa

2017

Tunnelling and Underground Space Technology

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Constructing tunnels in soft soil with the use of Tunnel Boring Machines (TBMs) may induce settlements. A considerable amount of the total soil displacements is correlated with the passage of the TBM-shield. Even so, the TBM-induced soil displacements are so far only coarsely correlated to the total settlements. This paper relates the shield geometry and its advance through the soil with the observed soil displacements. The snake-like motion of the shield induces unevenly distributed soil displacements at the shield-soil interface, which spread through the soil with a similar pattern. The results of an earlier numerical investigation on the TBM kinematics and the observed soil response are compared here in order to quantify their correlation. The analysis has been based on the monitoring data from the construction of a twin-tube bored road tunnel in The Hague, The Netherlands. Results confirm that the geometry and the advance of the TBM-shield through the soil influence the amount and distribution of the induced soil displacements. The analysis also highlights the essential role of the tail-void grouting not only in filling-in the tail-void, but also in compensating the kinematical effects of shield advance.

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Section: Hubertus Tunnelmentioning

confidence: 99%

Correlation between the kinematics of a Tunnel Boring Machine and the observed soil displacements

Broere

Festa

2017

Tunnelling and Underground Space Technology

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“…That stress field has to be balanced by the forces acting on the shield such as advance forces, shield self-weight, and hydrostatic pressure of the support fluid (Festa et al, 2012). Another validation approach may consist in matching the displacements calculated at the shield-soil interface with those observed in the soil in the vicinity of the tunnel under construction.…”

Section: Discussionmentioning

confidence: 99%

Kinematic behaviour of a Tunnel Boring Machine in soft soil: Theory and observations

Festa

Broere

Bosch

2015

Tunnelling and Underground Space Technology

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“…Therefore, TBM has been widely applied to construct tunnels for subways, railways, highways and hydro-power projects, etc. including projects in challenging conditions, such as urbanized environment and in adverse mining and geological conditions (Alber, 2008;Cho, Jeon, Yu, & Chan, 2010;Festa, Broere, & Bosch, 2012;Gong, Yin, Ma & Zhao, 2016).…”

Section: Introductionmentioning

confidence: 99%

Scale factors for conversion of forces on disc cutters for the main domestic and foreign methods

Zhabin¹,

Polyakov²,

Averin³

2017

Min. miner. depos.

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Purpose. Disc cutter is an important tool which is used in tunneling to destroy the rock during excavation as it directly influences rock-breaking efficiency, advance rate and economy of a project. Thus, it is of critical importance to have a reliable and accurate method for making predictions on cutting forces during rock destruction by disc cutters. Russian (including Soviet) research in the field is limited by studying small-diameter and/or wedge-shaped disc cutters which are not currently used. This paper is meant to coordinate domestic research by Baron and Glatman with the most widely used and fully accepted foreign theoretical and semi-empirical methods (by Roxborough and Phillips, Bilgin and Phillips, and Rostami and Ozdemir) that have proven accurate and reliable for TBM (tunnel boring machine) performance prediction.Methods. The analysis of methods includes a brief review, a series of numerical experiments, which were performed for disc cutters with diameters 160 and 483 mm, and a comparison with the use of graphs. Then by approximation of the data obtained in this way, we have derived formulas for converting values of cutting forces gained by foreign methods into the values suitable for the same conditions and the domestic method. Findings.The method by Baron and Glatman itself could not be used for TBM performance prediction and tunneling planning nowadays. The approach based on the scale factors could be used for correlating any of the represented methods. Scale factors depend on the depth of cut (DOC) for rolling forces or on DOC and disc cutter diameter for normal forces.Originality. The analysis has also shown that mutual arrangement of the graph lines for all figures remains unchanged. The invariance of the relative positioning and trends of the graph lines allowed to assume that it is possible to introduce scale factors which help to convert values from one method into the values of other methods. The scale factor, which enables to relate domestic method and the main foreign methods, is determined by consecutive division of the calculated values obtained via the method of Baron and Glatman by the values used in other considered methods. Practical implications.The results could be used in TBM designing and in tunneling projects.

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An investigation into the forces acting on a TBM during driving – Mining the TBM logged data

Cited by 36 publications

References 7 publications

Correlation between the kinematics of a Tunnel Boring Machine and the observed soil displacements

Correlation between the kinematics of a Tunnel Boring Machine and the observed soil displacements

Kinematic behaviour of a Tunnel Boring Machine in soft soil: Theory and observations

Scale factors for conversion of forces on disc cutters for the main domestic and foreign methods

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