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Strength changes due to reservoir-induced pore pressure and stresses and application to lake oroville
IOTA
strikes were d m ~ = ~ i m d for ~ of the isla~s. From the preferred J c l n ~ - c ~ l e ~ o n s , for the area as a whole one obtei~s e s s e n ~ a l l y a n E~ tectonic c ~ , . ~ - e s s i o n .
795065 INDUCED SEISMICITY ~
THE MANIC 3 ~SERVOIR,
Leblanc, G; AD~lin, F Bull Seismol Soc Am. V68. ~ . Oct 1978.
n~69-~85 795059 ~TATE C~ S~ESS IN F I S ~ ROCK A ~ ITS ~NON M I N ~ COnDiTiONS (IN ~ ' ~ )
795066 R ~ T I R ~
Tm-tschaDi~x~w, I A Rock M~a~h~ VII, N2, Sept 1978~ P123-129
P781-801
Discusses the stress s~ate of the ~ earth crust a~i the evidence for the e f f e c t s o f t a n ~ e n t i a l c r u s t a l contractions ~aleb e~e r e l a t e ~
This paper ~resents a procedure for rel~ese~e.iDg a~i synthesizing stroDg-motion accelarograms to be used in ccmpu~i~ ~ a l respomee in earthq,,~ In,me areas. This ~ocedure models t h e t a r g e t e a r t h q u a k e a s a nonstaticmary seco~i-arder ~ e g r e s s i v e (AR) ~ocess. The AR parameters are d e t e r m i n e d either b y se~mentiDg the record or by contim~usly u ~ i ~ g the simulation of accelero~rams u s i ~ the Orion Boulevard reccrdi~ of the 1971 San Ferm-neo earthquake as a target. Auth.
t o modern c r u s t a l movements. Wc~k on m e a s u r e ment o f s t r e s s f i e l d s in r o c k m a s s e s i s r e -
viewed briefly. The Influence of residual stresses on mining co~rlitions is a l s o discusse~. 795060 ACTUAL CRUSTAL M~EMENTS IN THE ALPS ARD THEIR SIGNIFICANCE FOR C O N ~ O N (IN G~%qAN) ~tti~r, T ROCk MeCh, St~pl 6, 1978, P17-23 (pal~r %o 2~th Gecmecha~ical Colloquimn, AUstrian Society for Gecmecha~ics~ Salzburg~ 14-15 Oct 1976) 7m~
c~m~n~
ASm~S
OF ~
Gmm~O~C
A~D SIMULATI~ ~TRO~ GROJ~D
MOTION J~rkevlcs, A; ~irych, T J Bull Selsmol Soc Am. %,68. N3. June 1978.
795067 STRENGTH ~ S
DUE TO EE~RVOIR-I~K~CED PORE FF~SS~EE AND ST~ES~S AND AFFLIC~IOI~ TO LAKE
~ Bell, M L; N ~ , A J Geophys Res, V83, NBg. i0 Sept 1978. P ~ 9 "
Scheidegger, A E Rock Mech. m m ~ l 6. 1978. P55-6~ (;epar to 25"~ ~ c a l Colloqui1~m, AUstrian Society fc~ Gece~a~hanlcs, Salzburg~ 14-i~
~83 Relating to the phe~.~uon of reservoir imduced seismicity, the pape~ comslde~s the two
tri~er~ Discusses the relationship b e t w e e n ~/tonic stn-esses~ tectonic pla~e boundaries, seismic effects~ an~ in situ stress ~ a s u r ~ - t s on a global basis. In particular, t h e analysis of Joint c~ienta%ion can be used fc~ ascertaining the l~ir~Ipal dlrec~ions of ~eutectonic stress fields.
Earthquake mechanisms and effects see also: 795o~9
795062 L~IAH EARTHQUAKE, 25 MARCH 1978. SEIa~ICITY POSSIBLY I~)bl~) BY LAKE MERDOCIN0 Toppozada, T R; Crame~ C H Calif Geol~ V~I~ NI2~ Dec 1978~ P275-281 Of Interest because Lake Memdoclmo 18 relatively s m a l l compared t o o t h ~ s w i t h d o c ~ e n t e d histories of i~duced seismici~y. It is however within 2kin of the Maacama Fault and %he San A~ireas Fault is 50kin further west.
795063 ESTIMATIR~ THE SEISMICITY FROM GEOLOGICAL STRUCTURE FOR SEISMIC RISK S~/DIES A~derson, J G Bull Seismol SOc Am, V69, NI, Feb 1979,
P~-~8 79506~ M I C R O T R ~ R SE~R2~ES AND TILTING IN A DEEP MINE McGs~r, A~ Green, R W E Bull Selsmol Soc Am, ~o8, R6, Dec 1978, P1679-
1697 Relx~rt8 a study of fc~eshocks~ af~ershocks ar~ the c~rrespo~limg rock deformation associated with 2 t r ~ s of m ~ t u d e 1.5 amd 1.2. A a~a~11 ~ sensitive array of geo~homes was u s e d a~d t h e d e f o r m a t i o n was m o n i t o r e d w i t h a tlltmeter in c l o s e I~W~L~I~F t o the hypocen-
ires. No Irdications of instability developing before either of the ~r~ors was found.
m e ~ :
(1) ~ . ~ t
effect o t
the added stress in trig~eri~ %he release of a large pres~ress~ (2) increase in pure pressure due ~o the water load. To do this,
the i~rm~ntal strength change of simple 2dimensioDal ~alf space models wi~h s~rface loadi~ is calcUlated~ a~i the pure pressure mechanism is shown to be feasible.
795~
PEESEISMIC FAULT S~ IP AND EARTHQUAE~ PEEDICTION Dietrich, J H J G e O ~ s Res, V83, ~ , i0 AI~ i~78, P3~0-
s~ Presents lab~atory evidence f ~ l~eseismlc s l i p i n artificially faulted samples, amd shows that mechanisms involvi~6 ~remonitory fault slip are cc~ps~ible with the slope of the log t versus M data. 39 refs. 795069 SCAI-A'~.~INGOF HCRIZONTALLY-H~2~ITR~ SHEAR WAVES BY SURFACE IRREGULARITIES Sills. L B G e o ~ s J R Astr SOc. VS~. N2. Aug 1978. P319-
3~8 E x a m ~ s the scattering of SH waves by an arbitrary surface irregularity in order to detert h e e f f e c t of topography on t h i s type
of sei~mLc grounl motion. A knowledge of the amplification ths~ oce~s at the top of miDences is i ~ a n t i n a~tlcIpe~Ing effect cf e a r t h q , ~ 8 on e~giaeeri~g structures.
Frost action, permafrost and frozen ground
79o7o ~ m i m ~ (IN ~SSZ~)
sm~ss~s IN m o z ~ ROCKS
Senuk, D P; Skuba, V N; Tiunin, V P Fiz-1~eh Probl Razrab Polezn Iskop~ N3,
M a ~ j u ~ 1978, P92-9~
strikes were d m ~ = ~ i m d for ~ of the isla~s. From the preferred J c l n ~ - c ~ l e ~ o n s , for the area as a whole one obtei~s e s s e n ~ a l l y a n E~ tectonic c ~ , . ~ - e s s i o n .
795065 INDUCED SEISMICITY ~
THE MANIC 3 ~SERVOIR,
Leblanc, G; AD~lin, F Bull Seismol Soc Am. V68. ~ . Oct 1978.
n~69-~85 795059 ~TATE C~ S~ESS IN F I S ~ ROCK A ~ ITS ~NON M I N ~ COnDiTiONS (IN ~ ' ~ )
795066 R ~ T I R ~
Tm-tschaDi~x~w, I A Rock M~a~h~ VII, N2, Sept 1978~ P123-129
P781-801
Discusses the stress s~ate of the ~ earth crust a~i the evidence for the e f f e c t s o f t a n ~ e n t i a l c r u s t a l contractions ~aleb e~e r e l a t e ~
This paper ~resents a procedure for rel~ese~e.iDg a~i synthesizing stroDg-motion accelarograms to be used in ccmpu~i~ ~ a l respomee in earthq,,~ In,me areas. This ~ocedure models t h e t a r g e t e a r t h q u a k e a s a nonstaticmary seco~i-arder ~ e g r e s s i v e (AR) ~ocess. The AR parameters are d e t e r m i n e d either b y se~mentiDg the record or by contim~usly u ~ i ~ g the simulation of accelero~rams u s i ~ the Orion Boulevard reccrdi~ of the 1971 San Ferm-neo earthquake as a target. Auth.
t o modern c r u s t a l movements. Wc~k on m e a s u r e ment o f s t r e s s f i e l d s in r o c k m a s s e s i s r e -
viewed briefly. The Influence of residual stresses on mining co~rlitions is a l s o discusse~. 795060 ACTUAL CRUSTAL M~EMENTS IN THE ALPS ARD THEIR SIGNIFICANCE FOR C O N ~ O N (IN G~%qAN) ~tti~r, T ROCk MeCh, St~pl 6, 1978, P17-23 (pal~r %o 2~th Gecmecha~ical Colloquimn, AUstrian Society for Gecmecha~ics~ Salzburg~ 14-15 Oct 1976) 7m~
c~m~n~
ASm~S
OF ~
Gmm~O~C
A~D SIMULATI~ ~TRO~ GROJ~D
MOTION J~rkevlcs, A; ~irych, T J Bull Selsmol Soc Am. %,68. N3. June 1978.
795067 STRENGTH ~ S
DUE TO EE~RVOIR-I~K~CED PORE FF~SS~EE AND ST~ES~S AND AFFLIC~IOI~ TO LAKE
~ Bell, M L; N ~ , A J Geophys Res, V83, NBg. i0 Sept 1978. P ~ 9 "
Scheidegger, A E Rock Mech. m m ~ l 6. 1978. P55-6~ (;epar to 25"~ ~ c a l Colloqui1~m, AUstrian Society fc~ Gece~a~hanlcs, Salzburg~ 14-i~
~83 Relating to the phe~.~uon of reservoir imduced seismicity, the pape~ comslde~s the two
tri~er~ Discusses the relationship b e t w e e n ~/tonic stn-esses~ tectonic pla~e boundaries, seismic effects~ an~ in situ stress ~ a s u r ~ - t s on a global basis. In particular, t h e analysis of Joint c~ienta%ion can be used fc~ ascertaining the l~ir~Ipal dlrec~ions of ~eutectonic stress fields.
Earthquake mechanisms and effects see also: 795o~9
795062 L~IAH EARTHQUAKE, 25 MARCH 1978. SEIa~ICITY POSSIBLY I~)bl~) BY LAKE MERDOCIN0 Toppozada, T R; Crame~ C H Calif Geol~ V~I~ NI2~ Dec 1978~ P275-281 Of Interest because Lake Memdoclmo 18 relatively s m a l l compared t o o t h ~ s w i t h d o c ~ e n t e d histories of i~duced seismici~y. It is however within 2kin of the Maacama Fault and %he San A~ireas Fault is 50kin further west.
795063 ESTIMATIR~ THE SEISMICITY FROM GEOLOGICAL STRUCTURE FOR SEISMIC RISK S~/DIES A~derson, J G Bull Seismol SOc Am, V69, NI, Feb 1979,
P~-~8 79506~ M I C R O T R ~ R SE~R2~ES AND TILTING IN A DEEP MINE McGs~r, A~ Green, R W E Bull Selsmol Soc Am, ~o8, R6, Dec 1978, P1679-
1697 Relx~rt8 a study of fc~eshocks~ af~ershocks ar~ the c~rrespo~limg rock deformation associated with 2 t r ~ s of m ~ t u d e 1.5 amd 1.2. A a~a~11 ~ sensitive array of geo~homes was u s e d a~d t h e d e f o r m a t i o n was m o n i t o r e d w i t h a tlltmeter in c l o s e I~W~L~I~F t o the hypocen-
ires. No Irdications of instability developing before either of the ~r~ors was found.
m e ~ :
(1) ~ . ~ t
effect o t
the added stress in trig~eri~ %he release of a large pres~ress~ (2) increase in pure pressure due ~o the water load. To do this,
the i~rm~ntal strength change of simple 2dimensioDal ~alf space models wi~h s~rface loadi~ is calcUlated~ a~i the pure pressure mechanism is shown to be feasible.
795~
PEESEISMIC FAULT S~ IP AND EARTHQUAE~ PEEDICTION Dietrich, J H J G e O ~ s Res, V83, ~ , i0 AI~ i~78, P3~0-
s~ Presents lab~atory evidence f ~ l~eseismlc s l i p i n artificially faulted samples, amd shows that mechanisms involvi~6 ~remonitory fault slip are cc~ps~ible with the slope of the log t versus M data. 39 refs. 795069 SCAI-A'~.~INGOF HCRIZONTALLY-H~2~ITR~ SHEAR WAVES BY SURFACE IRREGULARITIES Sills. L B G e o ~ s J R Astr SOc. VS~. N2. Aug 1978. P319-
3~8 E x a m ~ s the scattering of SH waves by an arbitrary surface irregularity in order to detert h e e f f e c t of topography on t h i s type
of sei~mLc grounl motion. A knowledge of the amplification ths~ oce~s at the top of miDences is i ~ a n t i n a~tlcIpe~Ing effect cf e a r t h q , ~ 8 on e~giaeeri~g structures.
Frost action, permafrost and frozen ground
79o7o ~ m i m ~ (IN ~SSZ~)
sm~ss~s IN m o z ~ ROCKS
Senuk, D P; Skuba, V N; Tiunin, V P Fiz-1~eh Probl Razrab Polezn Iskop~ N3,
M a ~ j u ~ 1978, P92-9~