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Współczesne metody drążenia tuneli - wybrane problemy w zakresie doboru obudowy

Cała Marek, Tajduś Antoni, Stopkowicz Agnieszka, Kolano Malwina, Blajer Mateusz

Mosty

2019

nr 5

42--45

W artykule przedstawiono ogólną charakterystykę metod NATM i ADECO-RS. Wskazano ich podobieństwa oraz istotne różnice. Przedstawiono także wybrane problemy doboru obudowy.

The article presents the general characteristics of the NATM i ADECO-RS tunneling methods. Their similarities and crucial differences are identified. Selected issues of the tunnel lining choice are also presented.

Tunele – nowoczesne podejście do projektowania

Jończyk M.

Builder

2018

R.22, nr 7

50--52, 54, 56

The dynamic development of tunnelling construction that has been observed in recent years results in the necessity to carry out a deeper analysis of previously used methods of designing tunnel facilities. The problem concerns both determining the magnitude of loads acting on the tunnel casing at the stage of its dimensioning and the technology of their drilling. Current studies suggest the possibility of using new design methods taking into account, to a much greater extent, the cooperation of the rock mass with the tunnel lining. An example of such approach is the ADECO-RS method (analysis of controlled deformations in rocks and soils), which was used in the project of a road tunnel under the Mały Luboń mountain along the S7 expressway Kraków-Rabka Zdrój on the Lubień - Rabka Zdrój section. The paper presents the main assumptions of the ADECO-RS method and the way of determining the load acting on the preliminary and final liningbased on the rock mass reaction curve. This method relies to a large extent on the measurements and observations of the behaviour of the face of the tunnel's ancestor and its contour. The paper also presents the results of geodetic measurements carried out in the tunnel, which form the basis for making decisions regarding the construction of individual stages of the tunnel casing. Based on the site visits, the work describes the next stages of ongoing works as well and discusses the issues related to the methods used to identify the rock mass used in the tunnel.