The control of ground movements in tunneling is essential for the protection of main assets and superstructures in the vicinity of the underground operations. The prediction of surface settlements induced by tunnel excavations in shallow depth is a combination of experience with a good knowledge of the ground conditions. Buildings damage risk assessment in the areas affected by the tunneling operations is extremely important for deciding about the needed mitigation measures to protect their aesthetic, as well as their structural integrity. Experiences gained by major tunnel projects (Jubilee Metro Line extension in London) have offered the principles for establishing a complete framework of assessing buildings damage risk caused by tunneling induced settlements.
The course: (i) offers to the participants the knowledge about methodologies, which are used for the estimation of tunneling induced surface settlements in a wide range of geotechnical conditions, (ii) familiarizes the participants with well-established building damage categories and (iii) gives details about the methods, which can be used for assessing the buildings damage risks both in free field conditions and with the consideration of the buildings actual stiffness.
1. Empirical and Analytical methods for the estimation of tunneling induced surface settlements. The derivation of ground loss in various geotechnical conditions (Soils to weak rocks).
2. Building damage categories.
3. Ideal beam method and the critical tensile strain concept for assessing the building damage risks.
4. The adoption of the buildings’ stiffness in assessing the building damage risks.
5. The use of 3 stages building damage risks assessment in urban tunneling projects.
Who Should Attend
Geotechnical, Tunnel and Structural Engineers (5 to 15 years of experience)