... monitoring carried out for the basement of the Airport Central Sheraton Hotel at Mascot, Sydney (Figure 1). The building is 12 stories high with down to 4 levels (depth of excavation about 12.5m) of basement parking and contains commercial premises as well as a five star hotel. The design and construct...

... limestone limestone borehole excavation geophysical model ABSTRACT: Active design is an expression that has been used fore some years now. This paper will present a case study from an excavation of two cavern constructions (80m long × 16m wide × 12m high) and access tunnels in a Bryozoan...

... ABSTRACT: This study focus on the optimal design of diaphragm wall system, which becomes more popular for sustaining large deep excavation in soft soil, though it is the most expensive way at all. After analyses the principle of discrete variable optimization, Genetic Algorithm (GA) is applied...

... by frequent fault zones and greatly crushed shear planes harboring high volumes of groundwater. The discussion will address the excavation hazards encountered no matter whether TBM or DB, and the construction methods used to overcome difficulties. INTRODUCTION The Pinglin tunnel of 12.9 km long...

... ABSTRACT: Certain points on tunnel section start to displace before measurements begin from within the tunnel. This paper is focused on methods to estimate the unmeasured displacements and to predict the total final displacements using measurement data obtained in early stages of excavation...

... ABSTRACT: This paper presents the analytical displacement of the sheet pile braced excavation system by means of the FEM technique based on case studies of deep excavation in Bangkok city with full geotechnical instrumentation. The research sites consists of 4 projects where the field...

... the predicted temporary support design requirements. Actual settlement monitoring during the five-staged excavation was carried out between September 1995 and March 1998 by means of extensometers, inclinometers and convergence, level and water level monitors. A maximum settlement of 33mm, observed during...

... ABSTRACT: Dewatering of soils by wells and wellpoints is a cost effective way of controlling pore water pressures and inflows into deep excavations. Traditionally installations have been carried out by drilling from the surface and installing wells with sand filters placed around a wellscreen...

... Upstream Oil & Gas back analysis natural gas storage cavern Sakurai application Artificial Intelligence displacement reduction factor rock mass non-elastic strain Reservoir Characterization inhomogeneous zone cavern excavation strain distribution excavation iterative...

... Artificial Intelligence displacement Excavation Procedure evaluation machine learning function parameter correlation excavation method rock mass ground transportation information excavation Case History procedure rail transportation accuracy prediction application sequential...

... boulevard contractor tunnel alignment boulder soft ground tunnel flood deposit US government Columbia Slough Consolidation Conduit Oregon excavation settlement construction mining alignment initial support system tunnel COLUMBIA SLOUGH CONSOLIDATION CONDUIT, A SOFT GROUND TUNNEL...

... on the deformational behavioral characteristics with time after roadway excavation. In view of the characteristics described, principles regarding roadway support within soft rocks are briefly outlined INTRODUCTION Soft rock, according to the International Society for Rock Mechanics classification scheme...

... rail transportation Reservoir Characterization structural geology tunnel envelope ground condition strength subsurface condition mountain Upstream Oil & Gas groundwater level sandstone ground transportation Piezometer hydraulic conductivity Los Angeles alignment excavation...

... ABSTRACT: The municipality of Amsterdam wish to reduce the level of car traffic within the City Centre. As a consequence the public transport is to be extended by a new North/South Metro line. This paper will focus on the design philosophy of the deep station boxes. The excavations depths...

... strength steel requirement shotcrete tunnel lining metals & mining shotcrete lining lining soft lining Thickness ductility excavation construction materials deformation stiffness tunnel relative stiffness soft ground tunnel lining tunnel lining design ABSTRACT...

... ABSTRACT: Excavation of a tunnel provides an opening into which the soil can deform and gives rise to "ground loss". The ground loss is generally defined as the volume of soil that has been excavated in excess of the theoretical design volume of tunnel excavation. In practice, the ground loss...

... construction in Korea. In this study, ground inspection, geological investigation, laboratory test and numerical analysis by means of finite difference method were carried out. The tunnel excavation was stopped because of over excessive brake of tunnel crown and shotcrete was installed to prevent deformation...

... undercrosses the city centre of Mainz with a length of about 1,250 m. Regarding the actual ground conditions and the existing settlement-sensitive structures at the surface the driving is carried out in shotcrete tunnelling method with sequential excavation steps. A sidewall drift hurrying on ahead was chosen...

... excavation methods offer a certain flexibility to cope with heterogeneous conditions, TBM´s still have to be improved to successfully master fault zones in Alpine tunnels. Emphasis in this paper is put to recent developments in short term prediction of rock mass behavior, prediction of tunnel closure...

... the application of the solution to the construction of the GRC using the closed-form solution is discussed and results compared with those from the classical Hoek-Brown criterion as implemented in the finite difference code FLAC 3D . INTRODUCTION Estimation of the support required to stabilize excavations...