Technical Excursions

The conference participants can choose from four site visits to the underground structures in and around Prague organised on Wednesday morning, 25th May. 
 

Site visit A: TBM excavation of the tunnel Ejpovice 

Departure from the Conference Venue will be at 8:00, the excursion will last 2,5 to 3 hours, return to the Conference Venue at 14:00.
 
The construction project „Modernization of the railway line Rokycany - Pilsen" is part of the national Railway transit corridor III - western part. The project implements the modernization of the rail line leading from Rokycany to the station Ejpovice mainly along the existing railway body. Between Ejpovice and the station Pilsen - Doubravka it follows the assumed location of the route for the new high-speed line on new land plots. Under the morphological features Homolka and Chlum it is conducted in tunnels. The length of the two single-track tunnels is 4150 meters. The length of the line was thus shortened by about 6100 m.
The tunnels are made by an adjustable EPBM with a diameter of 9.89 m. The excavation is carried downhill in a very complex geological and hydrogeological setting, poor quality Paleozoic and Proterozoic shales and spilites with very high groundwater inflows. During the construction, rings of steel fiber reinforced concrete, class C 45/55 with a length of 2.0 m are installed as the final lining. More information can be found on the website: http://www.rokycanyplzen.cz

We recommend that you wear outdoor shoes into the tunnel.
Translation into English will be provided for foreign participants.
The maximum number of participants for Site Visit A is 45.


Site visit B:Tunnels and landslide on the highway D8, repository Richard 

Departure from the Conference Venue will be at 8:00, the excursion will last 4 hours, return to the Conference Venue at 15:00.
 
The excursion is focused on the essentially already completed Prackovice and Radejčín tunnels, which are part of the newly built section of the D8 motorway (the expected date of commissioning of the construction project is December 2016). A part of the excursion will also be a visit to the stabilization of the landslide, which occurred in the area of the constructed road in front of the tunnels.
The Prackovice tunnel presents a newly constructed two-lane motorway tunnel of category T 9.5. The length of the right tunnel tube is 260 m (tunneled section 138 m), the length of left one is 270 m left (tunneled section 155.47 meters). The length of the southern excavated section is 85.8 meters, 25.0 meters in the north one. The actual construction of the tunnel was preceded by an exploration gallery (length 175 m), which was implemented in the right abutment of the left tunnel tube in the length of 175 m.
The tunnel Radejčín connects to the bridge beyond the Prackovice tunnel. The tunnel parameters are the same as for the tunnel Prackovice. The length of the right tunnel tube is 600 m (tunneled section 446 m), the length of the left one 620 m (tunneled section 446 m).

We recommend that you wear outdoor shoes into the tunnel.
Translation into English will be provided for foreign participants.
The maximum number of participants for Site Visit B is 45.
 

Site visit C: Josef Regional Underground Research Centre  

Departure from the Conference Venue will be at 8:00, the excursion will last 2,5 to 3 hours, return to the Conference Venue at 14:00.
 
The Josef URC is responsible for the operation of the Josef Underground Laboratory, the activities of which commenced in 2007 with the commissioning of 650 metres of underground galleries. Today there is available 5 km of underground galleries for the research activities and for the teaching of students and also the new administrative centre with laboratories is possible to exploit. The Josef Underground Laboratory is used by students from Prague universities as well as those from universities throughout the Czech Republic (approximately 300 students per semester). A total of 12 Czech and other European projects will make use of the underground facilities in 2013.
The lab is located next to Slapy dam, close to Čelina village not far from the town of Příbram (approx. 65 km from Prague).
 
We recommend wearing outdoor boots and warm clothes (constant temperature of + 8 °C).
English interpretation will be provided for foreign participants. 
The maximum number of participants for Site Visit D is 40.
 

Site Visit D: Control room Strahov - operation control of the road tunnels in the Prague centre

The tour will take about 1.5 hours from 9:30 to 11:00. 
 
HDŘÚ Praha is the traffic control centre for road tunnels in Prague and it is the most advanced telematic traffic control system operated in Prague. The control centre is located in the building of the Central Dispatch Centre of the Prague public transport company at Prague 2.  It is operated by members of the police. This specialised centre collects and processes data on the traffic on specific sections of the roads and road network, traffic data from telematic applications at each level of sensor profiles, process information from plant and equipment and alarms and warnings related to emergencies.

The visit will focus on the control centre and everything related to traffic monitoring and control in tunnels in the centre of Prague.

English interpretation will be provided for foreign participants.
The maximum number of participants for Site Visit E is 20.

Meeting point: in front of the entrance building Velín Strahov
Address: Šermířská 11, 169 00 Prague 6 – Břevnov
Transportation: individually, public transport – bus nr. 143 or 149 from metro station Dejvická
(green line A), or by bus nr. 176 from Karlovo square (metro station, yellow line B), eventually by bus nr. 191 from metro station Na Knížecí (yellow line B)

Application for the Site Visit

When registering, please tick the selected site visit on the registration form.

More details on the site visits will be published in the Conference Final Programme.