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Publications tagged with [tunnel boring machine]

Tunnel boring machine is a machine used to excavate tunnels in a circular cross section through rock or soil. Tunnel boring machines have been developed in recent years. There are different types of tunnel boring machines such as: slurry machine, earth pressure balance machine and rock machine. 

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<p>With the urban population increasing, conurbation is getting more and more crowed, traffic jam happens everywhere. In this case, utilization of the underground space has become an effective way to undertake this set of problems. Tunnel construction is one ...
Reference: EJGE, Vol. 21 [2016], Bund. 14
<p>The Klang Valley Mass Rapid Transit Sungai Buloh-Kajang (KVMRT-SBK) Line is the first MRT Project in Malaysia. The 9.3-km underground twin-tunnels between Semantan North Portal and Maluri South Portal are constructed using tunnel boring machines (TBMs). ...
Reference: International Conference and Exhibition of Tunnelling and Underground Space IEM Kuala Lumpur 3-5 March 2015
<p>In tunneling, it is very important to select the correct tunneling machines. Choosing a wrong method may be very costly to the company. There are many parameters affecting the decision stage of selection of the tunneling machine. Geology ...
Reference: Acta Montanistica Slovaca, Volume 20 (2015), number 2, 98-109
<p>A case study associated with shield-machine bored tunnels in sand is presented in this paper. Observations show that driving the first bored tunnel resulted in up to 10 mm of surface settlement, and the ground between two tunnels seems to have been affected ...
Reference: Journal of GeoEngineering, Vol. 6, No. 3, pp. 113-123, December 2011
The paper discusses a number of techniques used to control surface settlement during tunnelling with Earth Pressure Balance (EPB) Tunnel Boring Machines (TBMs). Surface settlement may result from over-excavation, mining with low EPB pressure or inadequate ...
Reference: ITA–AITES WORLD TUNNEL CONGRESS 2009 and 35th ITA–AITES General Assembly, Budapest, Hungary May 23–28, 2009
Specific correlations developed to predict the Rate of Advance for open TBMs, double-shields and single-shields, using the RME index are presented.
Reference: ITA Congress, Budapest, 2009
Recording drilling parameters is a useful and economical technique for acquiring geomechanical information of rock mass parameters. Although it is not usually emplyed at geotechnical boreholes it is systematically used in TBM. This paper shows the obtained ...
Reference: ITA-AITES World Tunnel Congress 2009, Budapest, Hungary
<p>The paper describes the selected significant developments, with the emphasis on the following findings: Charts are presented for more accurate determination, of the five input parameters of the RME, using graphical representation. New expressions to evaluate ...
Reference: ITA-AITES World Tunnel Congress 2008, Agra, India
<p>Tunneling challenges include difficult ground conditions, low rock cover, the presence of historic buildings along the alignment, and the large tunnel span, ranging from approximately 50 to 65 feet. Three mined tunnel construction methods were evaluated: ...
Reference: Rapid Excavation and Tunneling Conference (RETC) Proceedings, 2007
The inspection of the waste chips has consisted not only in the weight in the belt but also in the size and shape of the waste. Finally, the drilling parameters controlled were: - rate of advance - time of excavation - weight of material in the belt - thrust ...
Reference: ITA-AITES World Tunnel Congress 2007 - Underground Space - the 4th Dimension of Metropolises