Search Results: 'Herrenknecht'

Micro modifications give macro improvements
12 December, 2000
After over 15 years of development, microtunnelling is now practically a mature technology but some improvements are still being made.

Looking ahead for stability
14 November, 2000
While TBM technology has made various degrees of rapid face stabilisation possible during excavation, it can be a much more difficult task with open face excavation where TBMs are deemed not suitable. Yet even here ground control is becoming more and more sophisticated.

Fast route through Zurich
15 October, 2000
Zurich's new railway tunnel has made exceptionally good going southwards, but now the north end must pass under buildings, sometimes just a few metres down. It will be difficult work.

Lötschberg – Steg and Raron
14 October, 2000

Hastings Bathing Water Improvement Scheme
01 September, 2000
The paper was presented by Marcus Cato of Southern Water, Colin Eddy, of Miller Civil Engineering, John Corcoran, the tunnel agent for Miller Civil Engineering, and Helen Nattras, the tunnel resident engineer for Charles Haswell & Partners.

Determination to overcome difficulties
01 August, 2000
No stranger to meeting difficulties the tunnelling industry was presented with plenty during the past year.

Leading roles in LA
01 July, 2000
North America is a major growth area for microtunnelling. T&TI speaks to Paul Nicholas, president of leading firm Soltau Microtunnelling, about projects under way.

Snapshots of Scotland
01 July, 2000
Scotland's tunnels were the theme of a British Tunnelling Society informal dicussion on 13 April with a four part presentation. Chairman was David Donaldson.

Dutch courage
06 June, 2000
Soft soils; high pressure ground water; complex existing infrastructure: these are some of the problems posed by the Netherlands for the tunnelling engineer. Here o. Prof. Dr.-Ing. Dr. h.c. mult. Bernhard R. Maidl, Ruhr-Universität Bochum, Germany, and ing. Jan H. Jonker, NS Railinfrabeheer, Utrecht, Netherlands, look at how shield tunnelling techniques were developed to tackle a number of large scale road and rail tunnelling projects.

Driving beneath Buenos Aires
06 May, 2000
In its first five years' expansion plan to improve the potable water supply, Aguas Argentinas committed itself to spending $540m. As part of this plan, a 15.3km water supply tunnel has been built with a loan from the Inter American Development Bank. The new tunnel extends the existing tunnel network from the Saavedra connection structure to Moron. Future expansion is planned to take place in the 30 year long concession period. Nicola Della Valle, Production Manager,Wayss & Freytag-Sollazzo Hnos JV, describes this prestigious project.

Tunnelling for an oil pipeline
30 April, 2000
Alessandro Olcese, Oil Transmission Network, ENI Group; and Ugo Lazzarini and Carlo Vescovo, Gas Transmission Network, ENI Group, discuss the trenchless tunnelling solutions employed to solve the difficulties inherent in laying a long trans-national oil pipeline in difficult terrain. The technologies employed comprised microtunnelling; horizontal directional drilling; TBM tunnelling; raiseboring; and pipejacking.

Driving the Elbe Tunnel
30 March, 2000
The meeting of the BTS on January 20 took place in London at the Institution of Civil Engineers and was devoted to a paper by Martin Herrenknecht of Herrenknecht International on the Fourth Elbe Road Tunnel in Hamburg.

All systems go in Singapore
30 March, 2000
Traditionally, the underground construction industry in Singapore has been more concerned with the successful delivery of infrastructure projects than blowing its own trumpet. However, with the volume of investment now under way in this small island state and a rolling programme of schemes earmarked for the next three decades, there is huge interest in the tunnelling market here. Editor Steve McCormack was invited by the Land Transport Authority to visit key contracts in progress.

Roads & metros
27 January, 2000

New TBM launch system
27 January, 2000

TBM of distinction
27 January, 2000

North-south in Berlin
25 January, 2000
Changes to design and the near catastrophic flooding of a main tunnel caisson have resulted in the construction of central Berlin's missing transport route - the north-south rail link - slip from its original planned completion of 2002 to latest estimates of 2005. However, with the start of the final set of TBM tunnel drives, Lot 3 construction supervisor Lahmeyer International believes the project is now on the home stretch.