4. Support of underground excavations in hard rock

Author:

Library: (South Khorasan)

Subject: Excavation,Rock mechanics,Underground areas,Retaining walls,Lavra subterranea--larpcal

Classification :
TA740
.
H64
1997

6. Underground excavation in rock

Author:

Library: Tehran University, technical faculty libraries 1 (Tehran)

Subject: Excavation,Rock mechanics,Underground areas

Classification :
TA
710
.
H64
1982

7. Underground excavation in rock

Author:

Library: Library of Campus2 Colleges of Engineering of Tehran University (Tehran)

Subject: Excavation,Rock mechanics,Underground areas

Classification :
TA
710
.
H64
1982

8. Underground excavations in rock

Author:

Library: Central Library of Sharif University of Technology (Tehran)

Subject: ، Rock mechanics,، Underground areas,، Rock excavation,، Rocks

Classification :
TA
706
.
H622
1980

9. Underground excavations in rock

Author:

Library: Central Library of Amirkabir University of Technology (Tehran)

Subject: ROCK EXCAVATION , ROCK MECHANICS , UNDERGROUND AREAS

Classification :
TA
740
.
H63