Korelativni odnosi za definisanje deformabilnosti stene

In the framework of geotechnical investigations of the rock mass at the partition site MHE Bočac 2 (BiH), Jelašnica dams on the same river in southern Serbia and nine partition sites of hydroelectric power plants on the river Ibar, detailed geotechnical investigations of the rock mass were carried out. They included exploration drilling with the definition of quasihomogenic zones within the drilled core, determination of RQD for each separated quasi-chemical zone, dilatometric tests in each well, seismic ventilation between exploratory wells or seismic carotid, core testing by the Point Load method and laboratory tests of the single-axial strength of the samples. By connecting the results of the one-axial strength, the velocity of the elastic waves and the quality of the rockl mass (RMR), i.e. these indirect data for defining the deformability of the rock masses with the obtained results of in situation deformability testing, with the results of dilatometric tests, the analysis of correlation bonds is carried out which is applied in engineering geological or geotechnical practice. As is known, in engineering practice, the following correlations are used to define the deformation module: D = f(RMR); D= f(RMR,σci); D= f(Vp) i D = f(Vp, σci). After the analysis, a correlation was applied which included all three indirect data and it gave the closest data for defining the deformability of the rock mass.U okviru geotehničkih istraživanja stenske mase na pregradnom mestu MHE 'Bočac 2‟ (BiH), brane 'Jelašnica' na istoimenoj reci u južnoj Srbiji i na devet pregradnih mesta hidroelektrana na Ibru (Srbija) izvršena su detaljna geotehnička ispitivanja stenske mase. Ona su obuhvatila: istražno bušenje sa definisanjem kvazihomogenih zona u okviru izbušenog jezgra, određivanje RQD-a za svaku izdvojenu kvazihomogenu zonu, dilatometarska ispitivanja u svakoj bušotini, seizmičko prozračivanje između istražnih bušotina ili seizmički karotaž, ispitivanje jezgra metodom PointLoad i laboratorijska ispi-tivanja jednoaksijalne čvrstoće uzoraka. Na navedenim istražnim lokacijama teren grade različite ste-nske mase. Teren pregradnog mesta MHE 'Bočac 2' je izgrađen od krednih krečnjaka, teren brane 'Jelašnica' od paleozojskih gnajseva, a teren hidroelektrana na Ibru od mezozojskih peridotita i serpentinita. Povezivanjem rezultata jednoaksijalne čvrstoće, brzine elastičnih talasa i kvaliteta stenske mase (RMR), odnosno ovih posrednih podataka za definisanje deformabilnosti stenskih masa sa do-bijenim rezultatima ispitivanja deformabilsnosti in situ, tj. Sa rezultatima dilatometarskih ispitivanja, urađena je analiza korelacionih veza koja se primenjuje u inženjeresko-geološkoj odnosno geotehničkoj praksi. Kao što je poznato, u inženjerskoj praksi primenjuju se sledeće korelacije za definisanje modula deformacije: D=f(RMR); D=f(RMR,); D=f(Vp) i D=f(Vp, ). Nakon analize, primenjena je korelacija, koja je obuhvatila sva tri posredna podatka i ona je dala najbliže podatke za definisanje deformabilnosti stenske mase. Sva navedena ispitivanja deformabilnosti metodom dilatometra, geofizička ispitivanja i inženjersko-geološko kartiranje jezgra i okolne stenske mase izvršena su od strane Instituta za vodoprivredu 'Jaroslav Černi' iz Beograda

Correlative relations for defining the rock deformability

In the framework of geotechnical investigations of the rock mass at the partition site MHE Bočac 2 (BiH), Jelašnica dams on the same river in southern Serbia and nine partition sites of hydroelectric power plants on the river Ibar, detailed geotechnical investigations of the rock mass were carried out. They included exploration drilling with the definition of quasihomogenic zones within the drilled core, determination of RQD for each separated quasi-chemical zone, dilatometric tests in each well, seismic ventilation between exploratory wells or seismic carotid, core testing by the Point Load method and laboratory tests of the single-axial strength of the samples. By connecting the results of the one-axial strength, the velocity of the elastic waves and the quality of the rockl mass (RMR), i.e. these indirect data for defining the deformability of the rock masses with the obtained results of in situation deformability testing, with the results of dilatometric tests, the analysis of correlation bonds is carried out which is applied in engineering geological or geotechnical practice. As is known, in engineering practice, the following correlations are used to define the deformation module: D = f(RMR); D= f(RMR,σci); D= f(Vp) i D = f(Vp, σci). After the analysis, a correlation was applied which included all three indirect data and it gave the closest data for defining the deformability of the rock mass