On behalf of the Organizing Committee, it is our pleasure to welcome you all to the FirstInternational Workshop on Service Life Design for Underground Structures co - organized by Tongji University and Delft University of Technology. The workshop is supported by International Concrete Structure Association (fib), China Civil Engineering Society (CCES),International Union of Laboratories and Experts in Construction Materials, Systems and Structures (RILEM), National Natural Science Foundation of China (NSFC), and Science and Technology Commission of Shanghai Municipality (STCSM).

Preface

Organizers

Scientific Committee

Organizing Committee

Part One: Keynote Papers

 High performance concrete as a tool for durability of structures

 Durability and service life prediction of concrete under coupling action of chloride penetration and carbonation in sea air

 The relevance of advanced models for service life prediction: a critical appraisal

 Early age cracking and its prevention

 Life cycle design: principles and modeling

 Design for durability in Denmark

 Research progress and project practice of durability of concrete structure in China's coastal areas

 Service life for mornitoring and analysis of tunnels

 Durability threats for tunnels

Part Two: Materials

 Formation of thaumasite at low sulphate concentrations

 Back-propagation network and eleman network for predicting carbonation depth of concrete

 A microstructural model for the diffusion coefficient

 Evaluation on Sulfate Resistance of Cement Matrix Containing Limestone Powder

 Durability of fly ash concrete subjected to the combined external load and freeze- thaw cycles

 State of Research on durability research of self- compacting concrete

 Effect of heat cure and decalcification on the drying shrinkage behavior of hydrated cement pastes

 Effects of limestone filler on the behavior of mortar during external sulfate attack

 Two and three dimensional carbonation of fly ash concrete

 Selection of materials for concrete patch repair

Part Three: Durability and Service Life

 State estimation of reinforced drift lining exposed in aggressive conditions and prediction of its continuous service life

 Numerical simulation of the effect of blasting load on existing underground construction

 Delayed deformation analyses for mountain tunnel

 Bending moment analysis of underground diaphragm wall considering the limit value of crack resistance design

 Discussion on the limit standard of crack resistance design of concrete diaphragm wall in soft soil

 Steel Fiber Reinforced Concrete for Precast Tunnel Segments

 FRP mechanical properties and its potential applications under severe environmental and load conditions

 Study on stray current intensity and its effect on subway structures durability

 An efficient passive fire protection system for concrete

 Study on the influence of crack on the durability of tunnel segments and its fuzzy evaluation

 Fire damages to tunnel linings and fire protection measures

 The living environment and maintenance theory of tunnel

Part Four: Case Studies

 The appraisal of state of reinforced concrete jamb stone of dado tunnels exposed in aggressive conditions so as to predict its durability

 Visco- elastic model evaluations in view of crack risk assessments of hardening concrete elements

 Analysis on time- dependent property of structure during construction

 Study on the present state and repairing method of the existing river- crossing tunnel of Huangpu River in Shanghai

 Coefficient of lateral earth pressure for unsaturated soils

 In- situ testing study on durability of prestressed anchorage structures

 Mechanical models of rock- bolt crane girder in ultimate limit state

 Study on the fracture mechanism and the structure forms of shaft lining in huge alluvium

 Study on Auto- monitoring health system of underground structure in the operation metro system

 Nonlinear finite element buckling analysis of square reinforced concrete long columns confined with carbon fiber reinforced

 Numerical simulation of oversized deep foundation pit constructed by "top- down" method

 Long- term health monitoring to tunnel structure at high groundwater inflow lot

 Typical damages of tunnel entrance in working and case studies

 The rock mass monitoring and long-term stability analysis of the underground transformer house of yixing pumped storage power station,

 Stability analysis of rock tunnel using newly keyblock modeling technique