Developments in Geotechnical Aspects of Embankments, Excavations and Buried Structures

A.S. Balasubramaniam, Y. Honjo, D.T. Bergado, N.Phien-Wej, B. Indraratna, Prinya Nutalya all from the Asian Institute of Technology, Bangkok, Thailand.

• Preface 1. Laboratory and field tests An introduction to centrifuge model testing; Centrifugal modeling of soil-structure interaction; Centrifugal model tests - Recent projects; Influence of a non-random fabric on macroscopic properties of geomaterials; CPT correlations for sands from calibration chambers; Testing of very soft clay; Full scale laboratory and field test for development of gravel drains system; X-ray diffraction of the five component clay shales; Correlation of sampling effect in Hong Kong; Mechanics of wave pulse in rock fragmentation; Filter design for tropical residual soils; Strength and displacements of model infilled rock joints; Large scale model loading tests performed in a pneumatic caisson; Performance and monitoring of a deep, large diameter shaft; Pile driving measurements for assessment of hammer performance and pile adequacy; Pile diagnostics by FPDS; The study of the swelling properties of the altered granite by means of large scale field tests for underground excavations of the largest pumped storage power station in China 2. Embankments, excavations, slopes, and earth retaining structures; Excavation of submarine ground in the world’s largest pneumatic caisson; Full-scale slope failure at Selbome, UK; Study on the mechanisms of slope failure due to heavy rainfall by using laboratory and numerical models; Time-dependent deformation of anchored excavation in soft clay; Evaluation of earth pressure on retaining walls; Groundwater recharge to prevent subsidence of adjacent structure in a subway excavation; Model tests of slope failure due to seepage water; Model test on sheet-pile countermeasures for clay foundation under embankment 3. Tunnels and buried structures Behavior and simulation of sandy ground tunnels; Earth pressure acting on buried pipes; Large pipes buried in soft soil - Prefabricated pipes in river Nile sediments; Analyses of the longitudinal bending strain of pipelines subjected to vehicle loads; TBM tunneling and supports in ravelling and squeezing rock; Behavior of a buried flexible steel pipe under groundwater level; Shotcrete mix design, process of shotcreting for tunnel support (Narmada Power House Tunnel); Geotechnical experiences from construction of large diameter underground water pipe in soft Bangkok clay 4. Soil and rock improvements; Consolidation of clayey soils using combined dewatering method; Some examples of field tests for soil improvement methods in Japan; Soil improvement for tank foundation on sand deposit; Behavior of the improved ground by the Deep Mixing Method under embankment loading; Mechanically stabilized earth (MSE) and other ground improvement techniques for infrastructure constructions on soft and subsiding ground; Interaction of steel geogrids and low-quality, cohesive-frictional backfill and behavior of mechanically stabilized earth (MSE) wall on soft ground; A computational method for the design of passive bolts 5. Site investigation and selected topics Geotechnical aspects of the construction of the Singapore MRT; The geotechnical aspects of Malaysia’s North-South Expressway; Pile-tip cap driving method for precast concrete pile; Stochastic three dimensional joint geometry modelling including a verification to an area in Stripa Mine, Sweden; Geotechnical characteristics of soft soils in Indonesia; Field and laboratory tests of tropical residual soils as materials for dam; Preliminary report on the sand liquefaction induced by the 16 July earthquake in Dagupan City (Pangasinan Province, Philippines) Author Index