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Keywords: excavation
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Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-053
... ABSTRACT: Various types of deep foundation result in difficulty when excavating and supporting in soft soil strata during construction. An unpleasant situation is that too much project cost have to be invested in foundation engineering, among which quite a lot is dedicated to supporting...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-139
... to commercial/industrial. The remediation strategy involves developing specific clean up goals based on the future use of each part of the site, excavation and replacement of contaminated soil to meet these goals and placement of contaminated soil in an engineered on-site repository. The potentially complex...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-019
... a quasi-monolith. In the case of retaining structures or underground excavations, prestressed anchors are used in addition to conventional reinforcement. The paper focuses on retaining structures, underpinning of buildings, and tunnelling. Residual shear strength of the ground is considered an essential...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-291
...AN INVESTIGATION OF LONG-TERM STABILITY OF A SOIL NAILED EXCAVATION USING CENTRIFUGE MODELLING Alun M.C. Jones1 and Michael C.R Davies2 ABSTRACT Soil nailing is an earth retaining technique used to stabilise existing slopes and support excavations. The stability post construction can change due...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-281
...LATERAL BENDING OF SOIL-NAILS IN AN EXCAVATION W.L.Cheang 1, S.Q.Luo2, S.A.Tan 3 & K.Y.ong4 ABSTRACT Soil nailing is an in-situ reinforcement technique that has been widely used in the stabilisation of slopes and excavations by retaining in-situ soils with metallic bars or relatively small fully...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-296
.... To counteract this, a method is being employed in which a large amount of earth is excavated from the building site of a structure in order to reduce the extent of settlement caused by its weight. Generally the ground rebound and the settlement are caused by the excavation and the weight of a structure...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-292
... displacement permanent phase excavation Reservoir Characterization superficial water level water inflow reduction construction solicitation water level diaphragm wall bottom plug Rio de Janeiro São Paulo Drilling jet-grouting column Upstream Oil & Gas temporary support...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-346
... Meijiu Wei, PhD, MIES, formerly Senior Geotechnical Engineer, Ove Arup & Partners Singapore, Currently Senior Engineer, Connell Wagner Melbourne Australia A SHEETPILE RETAINING WALL AND JGP IMPROVEMENT SYSTEM FOR EXCAVATION IN SOFT MARINE CLAY Meijiu Wei ABSTRACT An excavation, 3.5m deep into soft...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-317
... SOILSTABILISATION WITH LIME-CEMENT COLUMNS A SOLUTION FOR DEEP SHEET PILE WALL IN SOFT CLAY Phung Duc Long1 and Håkan Bredenberg2 ABSTRACT: Lime-cement columns have been widely used for stabilisation of soft clay below embankments. However they can also be used for deep excavations to increase...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-284
... APPLICATION OF SOIL NAILED WALL IN SOFT SOIL AREA FOR DEEP EXCAVATION Feng Shi 1 ABSTRACT The technique of a soil nailed wall in a soft soil area for deep excavation was developed in this paper. Soil nailed walls are generally used to reinforce clay, residual soil, sand and angular soil etc...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-423
...STABILITY ANALYSIS AND DEFORMATION BEHAVIOR OF LARGE EXCAVATED ROCK SLOPES Kentaro Kido1, Ryunoshin Yoshinaka2, Katsuo Hagiwara3 and Katsuji Sasaki4 ABSTRACT This paper investigates the mechanism of slope displacement using the results of long-term monitoring of the unstable behavior and failure...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-305
... to founding conditions; the piled retaining structure would require a retained height in the order of 15m; the MSE wall would require excavation down to papa rock of suitable integrity and importation of suitable backfill. The options report (Opus: 1998) considered that only the MSE wall and bridging...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-348
... occupation of large areas at the surface, due, among other factors, to the high cost of the expropriations. To create a passage of electrical cables up to the city s down-town, the responsible Power Company, opted for a tunnel to be excavated according to the NATM method. The 5,4 km tunnel s layout crosses...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-455
...GENERATING DISCONTINUITY ORIENTATION DATA FOR USE IN PROBABILISTIC MODELS FOR MODELLING EXCAVATIONS IN ROCK. Anthony (Tony) G. Meyers1 and Stephen D. Priest2 ABSTRACT Proprietary probabilistic software generally requires discontinuity orientation to be defined according to two distributions, one...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-345
... 20 and 70. natural water content peat water table peaty ground apartment block sewer treatment plant ground treatment excavation construction peaty clay peaty soil Sri Lanka infrastructure facility settlement energy intensity operation tamper compressible material compression...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-543
... were used. Three basement levels were planned for the station. As deep excavation required stringent tolerances for the diaphragm walls and barrettes, a high level of quality control was necessary. Upstream Oil & Gas diaphragm wall panel rail transportation cage section diaphragm wall...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-533
... of the support systems. Typical readings of tunnel deformation with respect to the face advance and excavation over elapsed time are illustrated. Rock bolt deformations in pullout load tests are compared with a simplified theoretical prediction for geotechnical evaluations. Deformation responses of rock bolts...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-469
... is presented with an application to a well - documented experimental excavation site. Undrained strength values are model led as outcomes of a stochastic process. This permits to reproduce the random nature of measured soil properties and the associated spatial variability structure. Variogram analyses...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-523
... Pit flexural toppling failures have restricted overall slope angles to 37o. This paper discusses the geology, history and stability analyses of these toppling failures. The computer software programme UDEC has been successfully used to model excavation history, groundwater depressurisation and slope...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-514
.... During the existing practice they have proved to be as very exacting and unpredictable. Investigations often show much better stiffness characteristics of permo-carboniferous slates than they display after construction works. The most influential condition change is large excavations of cuts...

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