- Email: [email protected]
Protection of slopes against rainfall erosion
~ A R O V ,BV Experimental deformation of the parameters of a nonllnearly deforming composite type foundation. 2R. SOIL MECH .FoUND.ENGNG,V13, N1, JAN-FEB .1976, P52- 54 • 1397 SERGEEV, IT GH IKHOV, VS ,~xperimental studies of the character of the contact stress distribution in a pile model subjected to vertical and horizontal forces. 1R. SOIL MECH .FOUND. ~GNG,V13, N1, J~N-FEB •1976, P55- 57 • 1398 BARVASHOV, VA Composite models of an earth foundation bed. 8R. SO IL MECH. FOUND. ENGNG. V13, N1, JAN-FEB. 1976, P61-65.
1399 SHOJI,M MATSUMOTO, T Consolidation of embankment foundation. 18F,26R. SOILS FOUND.VI6, NI, MAR .1976, P59-74. A variational principle is introduced in which the Euler equations are the theoretical three-dimensional equations of consolidation in fully saturated and heterogemecus poro-elastic media with the fundamental consideration by Sandhu and Wilson. A finite element method is then used in both the space and time domains to develop a practical solution technique. In order to discuss the various ~roblems and difficulties in applying this numerical method to the practical design of foundation settlements, the results of the analyses are compared with the observations on the Aiko test embankment for the conStruction of the Tomei Expressway. The calculated settl~nents and pore water pressure fields agree well with the measurements when the permeability coefficient can be predicted accurately, except the parts where plastic settlements occur. 1400 BOZOZUK,M Mud creek bridge foundation moven~mts. 5F,hR. CAN .GEOTECH .J,V13,N1,FEB .1976,P21-26. A 122m long, five-span concrete bridge over Mud Creek, supported on end bearing steel piles, was instrumemted to measure horizontal movements of its foundations. Fifteen years of observations show that the abutments and piers have moved downslope end rocked back and forth through a small vertical angle about their bases. The net convergence of the abutments is about 4cm. The horizontal movements were cs~sed by soll creep in the mar. ine clams of the steep valley slopes. The change in verticality of the piers was attributed to the expansion and contraction of the bridge deck due to seasonal temperature variations. The steel end bearing batter piles were ineffective in maintaining the piers and abutments in their original positions. 1401 NIXON,JF RM HARDY & ASSOC,CALGARY, CD~ MCROBERTS,EC RM HARDY & ASSOC,CALGARY, CDN Design approach for pile foundations in permafrost. 18F, 12R. CAN. GEOTECH. J, V13, N1, FEB. 1976, P40 - 57. A design philosophy is proposed, whereby the pile settlements over the design life of the structure are retained within acceptable limits. The secondary creep law for ice is reviewed and the relationships between secondary p rate, stress, and temperature are obtained. An ysis is performed which relates the steady pile settlement rate to the pile shaft stress and the constant ground temperature. A review of pile load test data is carried out, and the results are compared with the theoretical predictions provided by the pile settlement anal. ysis. Reasonable agreement is obtained. The analysis is extended to account for the compression of the pile
~
shaft, varying ground temperature profiles, stress readJustment along the pile shaft, and the end bearing capacity of the pile. The analysis claims to provide a rational basis for pile design in permafrost and also to explain many of the phenomena likely to be observed in the behavior of piles under sustained loading. 1402 F ~ I ENIUS,BH SA~v~ON,L Testing of drivabillty of concrete piles and disturbance to sensitive clay. 14F,36R. CAN.GEOTECH. J, V13, N2,5~AY, 1976, P139-160 • The res~klts reported are of a~ investigation of a group of thirteen 12 in. (30cm) diameter precast concrete piles driven through 60ft (18m) of sensitive marine clay followed by 1Oft (3m) of silt and sand and 13ft (hm) of very dense silt to end bearing in glacial till. The purpose of the test was to study the drivability of the piles through very dense soll and to measure the disturbance caused to the sensitive clay by the driving of displacement piles. Following a literature review, the paper presents the soil conditions at the site and the testing program. The test results are discussed and experience gained from the follow-up of the driving of 520 piles at the site is presented.
Slopes See also abstract: 1429. 1403 SAGE,R, EDITOR Pit slope ms.nual, chapter 1.Summary. 66F. CANADA CENTRE FOR M L N ~ A L AND ENERGY TECHNOLOGY, CANMET, REPORT 76-22,SEPT.1976,65P. Chapter i of the Manual summarizes the remaining nine chapters, scheduled to appear early in 1977. These describe data gathering for structural geology, groundwater and mechanical properties, and the design process that mast follow. Particular emphasis is laid upon probability based stability analysis, and upon the incorporation of these analyses into overall financial planning of a mine. The ~aaual also describes monitoring procedures, perimeter blasting techniques to minimize wall damage, and methods of stabilizing slopes. *-he design of waste embankments and environmental practice in the mining industry is also covered.
1404 PERRY, EB Protection of slopes against rainfall erosion. US ARMY ENGINEER WATERWAYS E~ERIMENT STATION FINAL RE~RT, SEPT. 1975,41P .ADA- 0161&7. Presents a review of previous research on rainfall erosion processes, mechanics of rainfall erosion, cheracteristlcs of natural rainfall, rair_fall simulators. 1405 SC~4E rv.~,RJ WRIGHT, SG Su~,ey and e~-aluatlon of remedial measures for earth slope stabilization. TEXAS UNIV,AUSTIN,FINAL REPORT,AUG.1974,133P.PB-2k&626. Presents the results of a literature survey on remedial measures which have been used to stabilize earth slopes, concentrating on case histories. Measured included drain. age, restraint structures, elimination and avoido.nce of the slide area, benching, slope flattening, electroosmosis, thermal treatment, use of stabilizing ~sd_nixtures. SCULLY, J Landslides in the Pierre shale in central South Dakota. Executive s u ~ report. SOb'fH DAKOTA DEPT. OF TRANSPORTATION FINAL REPORT, 1975,28P .PB-2481~0.
1399 SHOJI,M MATSUMOTO, T Consolidation of embankment foundation. 18F,26R. SOILS FOUND.VI6, NI, MAR .1976, P59-74. A variational principle is introduced in which the Euler equations are the theoretical three-dimensional equations of consolidation in fully saturated and heterogemecus poro-elastic media with the fundamental consideration by Sandhu and Wilson. A finite element method is then used in both the space and time domains to develop a practical solution technique. In order to discuss the various ~roblems and difficulties in applying this numerical method to the practical design of foundation settlements, the results of the analyses are compared with the observations on the Aiko test embankment for the conStruction of the Tomei Expressway. The calculated settl~nents and pore water pressure fields agree well with the measurements when the permeability coefficient can be predicted accurately, except the parts where plastic settlements occur. 1400 BOZOZUK,M Mud creek bridge foundation moven~mts. 5F,hR. CAN .GEOTECH .J,V13,N1,FEB .1976,P21-26. A 122m long, five-span concrete bridge over Mud Creek, supported on end bearing steel piles, was instrumemted to measure horizontal movements of its foundations. Fifteen years of observations show that the abutments and piers have moved downslope end rocked back and forth through a small vertical angle about their bases. The net convergence of the abutments is about 4cm. The horizontal movements were cs~sed by soll creep in the mar. ine clams of the steep valley slopes. The change in verticality of the piers was attributed to the expansion and contraction of the bridge deck due to seasonal temperature variations. The steel end bearing batter piles were ineffective in maintaining the piers and abutments in their original positions. 1401 NIXON,JF RM HARDY & ASSOC,CALGARY, CD~ MCROBERTS,EC RM HARDY & ASSOC,CALGARY, CDN Design approach for pile foundations in permafrost. 18F, 12R. CAN. GEOTECH. J, V13, N1, FEB. 1976, P40 - 57. A design philosophy is proposed, whereby the pile settlements over the design life of the structure are retained within acceptable limits. The secondary creep law for ice is reviewed and the relationships between secondary p rate, stress, and temperature are obtained. An ysis is performed which relates the steady pile settlement rate to the pile shaft stress and the constant ground temperature. A review of pile load test data is carried out, and the results are compared with the theoretical predictions provided by the pile settlement anal. ysis. Reasonable agreement is obtained. The analysis is extended to account for the compression of the pile
~
shaft, varying ground temperature profiles, stress readJustment along the pile shaft, and the end bearing capacity of the pile. The analysis claims to provide a rational basis for pile design in permafrost and also to explain many of the phenomena likely to be observed in the behavior of piles under sustained loading. 1402 F ~ I ENIUS,BH SA~v~ON,L Testing of drivabillty of concrete piles and disturbance to sensitive clay. 14F,36R. CAN.GEOTECH. J, V13, N2,5~AY, 1976, P139-160 • The res~klts reported are of a~ investigation of a group of thirteen 12 in. (30cm) diameter precast concrete piles driven through 60ft (18m) of sensitive marine clay followed by 1Oft (3m) of silt and sand and 13ft (hm) of very dense silt to end bearing in glacial till. The purpose of the test was to study the drivability of the piles through very dense soll and to measure the disturbance caused to the sensitive clay by the driving of displacement piles. Following a literature review, the paper presents the soil conditions at the site and the testing program. The test results are discussed and experience gained from the follow-up of the driving of 520 piles at the site is presented.
Slopes See also abstract: 1429. 1403 SAGE,R, EDITOR Pit slope ms.nual, chapter 1.Summary. 66F. CANADA CENTRE FOR M L N ~ A L AND ENERGY TECHNOLOGY, CANMET, REPORT 76-22,SEPT.1976,65P. Chapter i of the Manual summarizes the remaining nine chapters, scheduled to appear early in 1977. These describe data gathering for structural geology, groundwater and mechanical properties, and the design process that mast follow. Particular emphasis is laid upon probability based stability analysis, and upon the incorporation of these analyses into overall financial planning of a mine. The ~aaual also describes monitoring procedures, perimeter blasting techniques to minimize wall damage, and methods of stabilizing slopes. *-he design of waste embankments and environmental practice in the mining industry is also covered.
1404 PERRY, EB Protection of slopes against rainfall erosion. US ARMY ENGINEER WATERWAYS E~ERIMENT STATION FINAL RE~RT, SEPT. 1975,41P .ADA- 0161&7. Presents a review of previous research on rainfall erosion processes, mechanics of rainfall erosion, cheracteristlcs of natural rainfall, rair_fall simulators. 1405 SC~4E rv.~,RJ WRIGHT, SG Su~,ey and e~-aluatlon of remedial measures for earth slope stabilization. TEXAS UNIV,AUSTIN,FINAL REPORT,AUG.1974,133P.PB-2k&626. Presents the results of a literature survey on remedial measures which have been used to stabilize earth slopes, concentrating on case histories. Measured included drain. age, restraint structures, elimination and avoido.nce of the slide area, benching, slope flattening, electroosmosis, thermal treatment, use of stabilizing ~sd_nixtures. SCULLY, J Landslides in the Pierre shale in central South Dakota. Executive s u ~ report. SOb'fH DAKOTA DEPT. OF TRANSPORTATION FINAL REPORT, 1975,28P .PB-2481~0.