21.04.2014 Views

Qhafor Ameen Hamasur

Qhafor Ameen Hamasur

Qhafor Ameen Hamasur

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

Chapter One Introduction<br />

Rock mass units<br />

Suface section rock mass units<br />

Borehole rock mass units<br />

Rock mass characterization<br />

Carbonate rock mass units<br />

Clastic rock mass<br />

units (Flysch)<br />

Condition of<br />

discontinuities:<br />

bedding planes<br />

Rock mass<br />

structure: Type<br />

of Flysch<br />

Intact<br />

rock<br />

Intact rock<br />

Groundwater<br />

condition<br />

Attitude of<br />

foundation rocks<br />

Condition of<br />

discontinuities<br />

Average<br />

spacing of<br />

discontinuities<br />

Rock Quality<br />

Designation<br />

(RQD)<br />

Weighted<br />

joint density<br />

(wJd)<br />

Thin section<br />

study<br />

Laboratory<br />

tests<br />

Thin section<br />

study<br />

Laboratery tests<br />

Volumetric joint<br />

count (Jv)<br />

Rock type<br />

Rock type<br />

Modulus Ratio<br />

(MR)<br />

Material<br />

constant (mi)<br />

Unconfined<br />

compressive<br />

strength (σci)<br />

Rock mass classification system :<br />

RMR1976, RMR1989 & DMR<br />

Modulus<br />

Ratio (MR)<br />

Rock mass classification system :<br />

Geological Strength Index (GSI)<br />

Material<br />

constant<br />

(mi)<br />

σci<br />

Hoek - Brown failure creterion<br />

(Mechanical properties of rock mass by<br />

RocLab programme)<br />

Choosing the best site for the dam<br />

Evaluation of rock mass units<br />

Fig (1- 3) : Flow chart showing the procedure followed in the dam site evaluation<br />

9

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!