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Pit slope manual, supplement 2-4. Joint mapping by terrestrial photogrammetry
87A
with a defined time-elevation history. The analyses are based on the simplified form of Bishop's model with circular failure surface and vertical slices. Two options are available for determining the pore pressure. In the timedepemdent drawdown analysis, a differential equation equates the volume of water that flows out of t h e slope in a given time with the product of the velocity of flow I area of flowj amd time interval. The solution of this equation yields the position of the phreatic surface with time. The information helps determine the l~essures elomg a trial circular sliding surface, amd the variation of the factor of safety with time. The factor of safety decreases rapidly with the lowering of the reservoir level, followed by a slow ard nonlinear increase to the steady state value.
ters on principles of photo~rA,m~try ard available equipment, errors and limitations, desigz of a photogrammetric system, field operation, case histories, cost of terrestrial photogrammerry. Avail: C A ~ , KIA OGI
784174
784170 SIMPLIFIED APPROACH TO SLOPE STABILITY ANALYSIS IN THAWING SOILS Phukan, A Proc 2rod Int Syrup Cold Regions Emgineering, Fairbanks, 12-14 Aug 1~6, P252-261 784171 EXTENSIONS TO THAWING SLOPE STABILITY THEORY McRobe~tsj E C; Nixon, J F Proc 2nd Int Syrup Cold Regions Engineering, Falrbarks, 12-14 Aug 1976, P262-276 784172 FIT SLOPE MANUAL, SUPHLEMENT 4-1. COMPUEER MANUAL FOR SEEPAGE ANALYSIS Marion-Lambert, J Canada Centre for Mineral and Energy Technology (CAlUmET) report 77-30, Dec 1977, 97P Gives engineering documentation, program capabilities and system documentation for the computar program FEFPM, which performs a steadystate seepage analysis to determine fluid pressures, flow quantities, rates anl direction of groundwater in slopes. It assumes either planar or radially symmetric flow, linear in a finite element in a porous medium. It computes the location of phreatic surface for unconfined flow problems, material type and permeability for a specific soil element, and fluid potential and stream function values. The program generates nodes and elements of a finite element mesh during iterations to locate a phreatic surface ani automatically limits the flow regime to the slope profile. Avail: C A I ~ , K~A OG1
ESTIMATION OF UPPER BOUNDS TO ROCK SLOPES BY ANALYSIS OF EXISTING SLOPE DATA. WALL STABILIT~ I N THE SOUTH ROHERTS PIT - AN E X ~ OF THE USE OF PREVIOUS SLOPES McMahon, B K Canada Centre for Mineral and Energy Technology (CA~MET) report 76-14, Aug 1976, 64P The development of a new analytical procedure for the design of rock slopes is reported and examined. The method uses statistical and probability analysis together with present theory on economic decision.
78~168 SLOPE PROCESSES, VOL 2. PHOTOGRAMMEVfRIC METHOD OF STUDYING SLOPE PROCESSES (IN RUSSIAN) Knizhnikov~ I F Moscow: Unlversitet, 1977~ 168P 78416 9 EXI~IMENTAL STABILIZATION OF EXCAVATION SLOPES IN THE WESTERN SECTION OF THE BAYKAL R~U2OAD (IN RUSSIAN) Palkln, I S; Stafeev, P F; G~a~lev, E 0 Trsluep Stroit, NT, July 1977, P4-5
555 Booth St, OttsHa, Camsda,
Earth retaining structures
784175
DIAPHRAGM WALL SOLUTION IN DOCKLANDS Civ Engng, London, Dec 1977, P17-19 Breifly describes the construction of the new pumping station at Beckton, where the outer walls of the permanent structure (2 interconnec ting diaphragm walls) were used as a cofferdsm, obviating the need for temporary works.
784176 REINFORCED EARTH CONCEP±' AT VALDEZ REDUCED CONSTRUCTION TIME, CUT COST McKittrick, D P Pipeline Gas J, V204, Nil, Sept 197V, P48-50 Reports the construction of a reinforced earth contai~nent dike and 4 reinforced earth retai~ ir~ walls, total surface area 125000sq ft, at the oil storage ar~ transfer terminal at Pc~t Valdez, Alaska. Claims that the use of reinforced earth eliminated the need for at least 450000cu yd of rock fill, significantly reduce~ construction time and cost, and now provides stable fou~datlons for various access roads at the t~am~inal, with suitable stability under possible earthquake cor~itions. Claims the following advantages for reinforced earth strut tures: (1) stress concentrations are avoided, (2) forces are evenly distributed within the rock mass, (3) ability to withstand signlfican~ differential settlements, (4) ability to resis~ external and internal forces, geostatic and hydrostatic pressures, and ~ c forces from moving or seismic loads. (The author is president of the Reinforced Earth Company, Waahingt(
DC).
555 Booth St, Ottawa, Carla,
784173 PIT SLOPE MANUAL, SUI~PL~Nr 2-4. JOINT MAPPING BY TERRESTRIAL PHOTOGRAMME~RY Herget, G Camsda Centre for Mineral amd E r ~ g y Technology (CA~MET) report 77-23, Oct 1977, B4P Terrestrial photogrammetry can be used to obtain geological information on orientation, spacing and lemgth of Joints from steep rock slopes with limited access. This supplement includes chap-
Base courses and p a v e m e n t s 784177 ROADS ON FF~. PARTS I AND 2 Bell, F G Civ Engmg, London, Jan 1978, P45-49 (Part i), Feb 1978, P49-53 (Part 2) Discusses the geotechnlcal properties of peat, with a tabulation of physical properties for different peats which includes shear strer@ Young's modulus szd moisture content. Studies
with a defined time-elevation history. The analyses are based on the simplified form of Bishop's model with circular failure surface and vertical slices. Two options are available for determining the pore pressure. In the timedepemdent drawdown analysis, a differential equation equates the volume of water that flows out of t h e slope in a given time with the product of the velocity of flow I area of flowj amd time interval. The solution of this equation yields the position of the phreatic surface with time. The information helps determine the l~essures elomg a trial circular sliding surface, amd the variation of the factor of safety with time. The factor of safety decreases rapidly with the lowering of the reservoir level, followed by a slow ard nonlinear increase to the steady state value.
ters on principles of photo~rA,m~try ard available equipment, errors and limitations, desigz of a photogrammetric system, field operation, case histories, cost of terrestrial photogrammerry. Avail: C A ~ , KIA OGI
784174
784170 SIMPLIFIED APPROACH TO SLOPE STABILITY ANALYSIS IN THAWING SOILS Phukan, A Proc 2rod Int Syrup Cold Regions Emgineering, Fairbanks, 12-14 Aug 1~6, P252-261 784171 EXTENSIONS TO THAWING SLOPE STABILITY THEORY McRobe~tsj E C; Nixon, J F Proc 2nd Int Syrup Cold Regions Engineering, Falrbarks, 12-14 Aug 1976, P262-276 784172 FIT SLOPE MANUAL, SUPHLEMENT 4-1. COMPUEER MANUAL FOR SEEPAGE ANALYSIS Marion-Lambert, J Canada Centre for Mineral and Energy Technology (CAlUmET) report 77-30, Dec 1977, 97P Gives engineering documentation, program capabilities and system documentation for the computar program FEFPM, which performs a steadystate seepage analysis to determine fluid pressures, flow quantities, rates anl direction of groundwater in slopes. It assumes either planar or radially symmetric flow, linear in a finite element in a porous medium. It computes the location of phreatic surface for unconfined flow problems, material type and permeability for a specific soil element, and fluid potential and stream function values. The program generates nodes and elements of a finite element mesh during iterations to locate a phreatic surface ani automatically limits the flow regime to the slope profile. Avail: C A I ~ , K~A OG1
ESTIMATION OF UPPER BOUNDS TO ROCK SLOPES BY ANALYSIS OF EXISTING SLOPE DATA. WALL STABILIT~ I N THE SOUTH ROHERTS PIT - AN E X ~ OF THE USE OF PREVIOUS SLOPES McMahon, B K Canada Centre for Mineral and Energy Technology (CA~MET) report 76-14, Aug 1976, 64P The development of a new analytical procedure for the design of rock slopes is reported and examined. The method uses statistical and probability analysis together with present theory on economic decision.
78~168 SLOPE PROCESSES, VOL 2. PHOTOGRAMMEVfRIC METHOD OF STUDYING SLOPE PROCESSES (IN RUSSIAN) Knizhnikov~ I F Moscow: Unlversitet, 1977~ 168P 78416 9 EXI~IMENTAL STABILIZATION OF EXCAVATION SLOPES IN THE WESTERN SECTION OF THE BAYKAL R~U2OAD (IN RUSSIAN) Palkln, I S; Stafeev, P F; G~a~lev, E 0 Trsluep Stroit, NT, July 1977, P4-5
555 Booth St, OttsHa, Camsda,
Earth retaining structures
784175
DIAPHRAGM WALL SOLUTION IN DOCKLANDS Civ Engng, London, Dec 1977, P17-19 Breifly describes the construction of the new pumping station at Beckton, where the outer walls of the permanent structure (2 interconnec ting diaphragm walls) were used as a cofferdsm, obviating the need for temporary works.
784176 REINFORCED EARTH CONCEP±' AT VALDEZ REDUCED CONSTRUCTION TIME, CUT COST McKittrick, D P Pipeline Gas J, V204, Nil, Sept 197V, P48-50 Reports the construction of a reinforced earth contai~nent dike and 4 reinforced earth retai~ ir~ walls, total surface area 125000sq ft, at the oil storage ar~ transfer terminal at Pc~t Valdez, Alaska. Claims that the use of reinforced earth eliminated the need for at least 450000cu yd of rock fill, significantly reduce~ construction time and cost, and now provides stable fou~datlons for various access roads at the t~am~inal, with suitable stability under possible earthquake cor~itions. Claims the following advantages for reinforced earth strut tures: (1) stress concentrations are avoided, (2) forces are evenly distributed within the rock mass, (3) ability to withstand signlfican~ differential settlements, (4) ability to resis~ external and internal forces, geostatic and hydrostatic pressures, and ~ c forces from moving or seismic loads. (The author is president of the Reinforced Earth Company, Waahingt(
DC).
555 Booth St, Ottawa, Carla,
784173 PIT SLOPE MANUAL, SUI~PL~Nr 2-4. JOINT MAPPING BY TERRESTRIAL PHOTOGRAMME~RY Herget, G Camsda Centre for Mineral amd E r ~ g y Technology (CA~MET) report 77-23, Oct 1977, B4P Terrestrial photogrammetry can be used to obtain geological information on orientation, spacing and lemgth of Joints from steep rock slopes with limited access. This supplement includes chap-
Base courses and p a v e m e n t s 784177 ROADS ON FF~. PARTS I AND 2 Bell, F G Civ Engmg, London, Jan 1978, P45-49 (Part i), Feb 1978, P49-53 (Part 2) Discusses the geotechnlcal properties of peat, with a tabulation of physical properties for different peats which includes shear strer@ Young's modulus szd moisture content. Studies