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Risks connected with abandoned underground quarries in Normandy (In French)
152A
883391 Some aspects of groundwater control by ground freezing and grmting metheds Harris, J S; Pollard, C In: Grmmdwater in F.~i~eriag Geology (papers to the 21st Amuml Conference of the F~i~eri~g Group of the Geological Society, S&e.~i~ld, 1.$-19 Septemlk,r, 1985) P455466. Publ London: Geological Society, 1986 Before commencing a shaft sinking project, hydrological and geophysical testing and core examination are carried out to identify the water hearing strata and select appropriate groundwater control methods. Three techniques are discussed, grouting to reduce the permeability of the water bearing strata, construction of an impermeable barrier by ground freezing, and the construction of pressure relief wells, which create preferential paths for groundwater flow and reduce uncontrolled inflow into the excavation.
883392 water eeatmi ia vtrlem ~ widt the helpof vaemm treatment Arutjunjan, R N
of eemtrnetien
l~oc Nistk E~ropecm Co~fereace on SoilM~ekanics a~l F ~ Fa~erigg, G ~ e r EJrects is Geoteelmical ~ , B~dd~, 31 Aq-3 Sept 1987 VI, Pl13-115. Publ Rotterdam: A A Balkema, 1987 Vacuum dewatering may be used in areas of complex hydrology or to protect construction works in areas where conventional methods are inapplicable. Theoretical analysis of groundwater flow in vacuum dewatering is presented. Practical data from projects to dewater and stabilisc low permeability soils are given. Notable increases in shear strength for landslide protection or stabilisation of ground around excavations are evident. 883393 Cmmndwater i a v ~ and ¢mmfl for rite Dairy lamells Carter, P G; Forsyth, F M Proe Nistll Faw~mm Cecflrct~e on Soil Mcelm~s aml Fmmdadew ~ , Grmmcl'~ter Ejects is Gemt~deal ~ , ~ , Jl Auf-J ~ p t 1987 VI, P125-128. Publ Rotterdam: A A Balkema, 1987 Sewer tunnels were driven through permeable gravels and sensitive silts beneath a railway without interrupting tral~. Pumping tests suggested that dewatering the tunnels was not feasible. Clay-cement and chemical grouts were injected to fill the relatively large and small pore spaces in the gravels respectively. Compressed air was used to minimise groundwater flow and prevent heave of soft silt in the invert. The tunnels were successfully completed.
were installed through the tunnel inverts, which drew the water table down such that it stopped the inflow of water and sand.
Surface snbsidence, caving and roekbursts 8833~ Nonmmdy (In French) Evrard, H
~ Labs PoRts Cbawsces N150-151, July-Aug~SeptOct 1987, P96-108 There are many disused underground chalk and limestone quarries, dating back over hundreds of years, in the Normandy region. The geology, distribution and form of these cavities, and modifications caused by groundwater flow and time dependent deformation, are first described. The forms and consequences of surface failure associated with ~ r ground quarries are considered. Methods of cavity location and risk evaluation are examined. The value of systematic collation of regional data is emphasised.
883396 I d m , z e of ~ oa ~ mevemeat dm to ce,,lmt,,~. The U~ u / ~ expedmee Hellewell, E G Mira Emgr V147, 31316, Jan 1988, P334-337 It is recognised that geological faults can have a significant influence on ground movements due to coalextraction. Published data from the UK and Europe have been s t y , Due to the very wide rmage of geological conditions encountered and the limited depth of investigation of particular aspects, some contradictory conclusions have been drawn. The need for further work is emphasised.
883397 Hodges, D J; Cooper, S M
Mira Es~r V147, N316, Jan 1988, P339,343 An automated system to record, process, and plot sub~dence data is described. The monitoring of the d e v e ~ t of subsidence with the p r o ~ n of the Iongwall ~ , sub~lencc and strain profiles are i l l ~ t e d . Actual s ~ are cam, pared to those ~ a~ordin$ to the Sul~k, nce Engineers Handbook and N o t t i ~ r e methods.
_R8_3394 P m . m e m ,~.waterlsS . y s t m I m u , l ~ ie -., m,lmSmmJ railway IGrkland, C J, Rowdon, I J; Smyth-Osbourne, K R
g833N SIdnd~nee ~ of ~ eoai at~l Park, D W; Ash, N F evoc~oart*A ~ wa¢.~, ~ M~m~ r ~ O Ceres, Mbte b3mtcms I ~ ~ G ~ m d Com¢¢i, Mcmcew, Ida,. 2#-21 ~ I ~ P81-92. Publ B ~ ; Virginia Polytechnic Institute and State University, 1986
F.afism#q, ~ M AI~-$ &q~ 1957 VI, P179-182. Pubi Rotterdam: A A Baikema, 1987 Settlement of a short length of the tunnels of the Glasgow metro was found to be due to subsurface soil erosion associated with groundwater flow into the tunnel through cracks in the lining. To ensure future stability, permanent well points
Results of subsidence monitoring over three years for two sites in the Warrior coalf~ld are ~ . D i t e e n t ~ubsideitce behaviour is evident for ~ and deep ~ F i n element numerical analysis of the two case s ~ was undertaken, and the effect of s ~ on ~ n d w a t e r hyarology investigated. ~ ~te that s u ~ i ~ hydrology, but that groundwater level returns t o n o ~ ~ n mining is completed.
© 1988 Pergamon Press pie. Reproduction not permitted
883391 Some aspects of groundwater control by ground freezing and grmting metheds Harris, J S; Pollard, C In: Grmmdwater in F.~i~eriag Geology (papers to the 21st Amuml Conference of the F~i~eri~g Group of the Geological Society, S&e.~i~ld, 1.$-19 Septemlk,r, 1985) P455466. Publ London: Geological Society, 1986 Before commencing a shaft sinking project, hydrological and geophysical testing and core examination are carried out to identify the water hearing strata and select appropriate groundwater control methods. Three techniques are discussed, grouting to reduce the permeability of the water bearing strata, construction of an impermeable barrier by ground freezing, and the construction of pressure relief wells, which create preferential paths for groundwater flow and reduce uncontrolled inflow into the excavation.
883392 water eeatmi ia vtrlem ~ widt the helpof vaemm treatment Arutjunjan, R N
of eemtrnetien
l~oc Nistk E~ropecm Co~fereace on SoilM~ekanics a~l F ~ Fa~erigg, G ~ e r EJrects is Geoteelmical ~ , B~dd~, 31 Aq-3 Sept 1987 VI, Pl13-115. Publ Rotterdam: A A Balkema, 1987 Vacuum dewatering may be used in areas of complex hydrology or to protect construction works in areas where conventional methods are inapplicable. Theoretical analysis of groundwater flow in vacuum dewatering is presented. Practical data from projects to dewater and stabilisc low permeability soils are given. Notable increases in shear strength for landslide protection or stabilisation of ground around excavations are evident. 883393 Cmmndwater i a v ~ and ¢mmfl for rite Dairy lamells Carter, P G; Forsyth, F M Proe Nistll Faw~mm Cecflrct~e on Soil Mcelm~s aml Fmmdadew ~ , Grmmcl'~ter Ejects is Gemt~deal ~ , ~ , Jl Auf-J ~ p t 1987 VI, P125-128. Publ Rotterdam: A A Balkema, 1987 Sewer tunnels were driven through permeable gravels and sensitive silts beneath a railway without interrupting tral~. Pumping tests suggested that dewatering the tunnels was not feasible. Clay-cement and chemical grouts were injected to fill the relatively large and small pore spaces in the gravels respectively. Compressed air was used to minimise groundwater flow and prevent heave of soft silt in the invert. The tunnels were successfully completed.
were installed through the tunnel inverts, which drew the water table down such that it stopped the inflow of water and sand.
Surface snbsidence, caving and roekbursts 8833~ Nonmmdy (In French) Evrard, H
~ Labs PoRts Cbawsces N150-151, July-Aug~SeptOct 1987, P96-108 There are many disused underground chalk and limestone quarries, dating back over hundreds of years, in the Normandy region. The geology, distribution and form of these cavities, and modifications caused by groundwater flow and time dependent deformation, are first described. The forms and consequences of surface failure associated with ~ r ground quarries are considered. Methods of cavity location and risk evaluation are examined. The value of systematic collation of regional data is emphasised.
883396 I d m , z e of ~ oa ~ mevemeat dm to ce,,lmt,,~. The U~ u / ~ expedmee Hellewell, E G Mira Emgr V147, 31316, Jan 1988, P334-337 It is recognised that geological faults can have a significant influence on ground movements due to coalextraction. Published data from the UK and Europe have been s t y , Due to the very wide rmage of geological conditions encountered and the limited depth of investigation of particular aspects, some contradictory conclusions have been drawn. The need for further work is emphasised.
883397 Hodges, D J; Cooper, S M
Mira Es~r V147, N316, Jan 1988, P339,343 An automated system to record, process, and plot sub~dence data is described. The monitoring of the d e v e ~ t of subsidence with the p r o ~ n of the Iongwall ~ , sub~lencc and strain profiles are i l l ~ t e d . Actual s ~ are cam, pared to those ~ a~ordin$ to the Sul~k, nce Engineers Handbook and N o t t i ~ r e methods.
_R8_3394 P m . m e m ,~.waterlsS . y s t m I m u , l ~ ie -., m,lmSmmJ railway IGrkland, C J, Rowdon, I J; Smyth-Osbourne, K R
g833N SIdnd~nee ~ of ~ eoai at~l Park, D W; Ash, N F evoc~oart*A ~ wa¢.~, ~ M~m~ r ~ O Ceres, Mbte b3mtcms I ~ ~ G ~ m d Com¢¢i, Mcmcew, Ida,. 2#-21 ~ I ~ P81-92. Publ B ~ ; Virginia Polytechnic Institute and State University, 1986
F.afism#q, ~ M AI~-$ &q~ 1957 VI, P179-182. Pubi Rotterdam: A A Baikema, 1987 Settlement of a short length of the tunnels of the Glasgow metro was found to be due to subsurface soil erosion associated with groundwater flow into the tunnel through cracks in the lining. To ensure future stability, permanent well points
Results of subsidence monitoring over three years for two sites in the Warrior coalf~ld are ~ . D i t e e n t ~ubsideitce behaviour is evident for ~ and deep ~ F i n element numerical analysis of the two case s ~ was undertaken, and the effect of s ~ on ~ n d w a t e r hyarology investigated. ~ ~te that s u ~ i ~ hydrology, but that groundwater level returns t o n o ~ ~ n mining is completed.
© 1988 Pergamon Press pie. Reproduction not permitted