000			01938nam a22002537a 4500
999			_c198238 _d198238
005			20190719164612.0
008			190612b1980 enk||||gr|||| 00| 0 spa d
020			_a0900488549
020			_a9780900488542
040			_aCO-BoUGC _cCO-BoUGC _d21
041		0	_aeng
082	0	4	_a624.15132 _bH634u _223
245	1	0	_aUnderground excavations in rock _cEvert Hoek; Edwin T Brown
250			_a1a edición
260	3		_aLondon _bInstitution of Mining and Metalurgy _c1980
300			_a28 cm _bilustraciones,. fotografías _c28 cm
504			_aIncludes bibliography
505	0		_aPlanning considerations ; 2. Classification of rock masses ; 3.Geological data collection ; 4. graphical presentation of geological data ; 5. Stresses around underground excavations ; 6. Strength of rock and rock masses ; 7. Underground excavation failure mechanisms ; 8. Underground excavation support desing ; 9.Rockbolst. Shotcrete and mesh ; 10 Blasting in underground excavations ; 11 Instrumentation.
520	1		_aAnyone setting out to write a book on the desing of underground excavation in rock soon realizes the enormity of the task being undertaken and the impossibility of satisfying the requirements of all possible readers. Underground excavation are constructed for a wide variety of uses in a large number of different rock types. In the mining industry, many different underground mining methods are used. Depending upon the dip and the thickness of the ore body and the characteristics of the country rock. In civil engineering applications, excavations designed to store gas or oil, to house power generating equipment, for the disposal of waste materials, to conduct water or to low the passage of vehicles must all satisfy different requirements.
650	1	7	_2ARMARC _aExcavaciones _9144097
650	2	7	_2ARMARC _aCanteras _9143089
650	1	7	_2ARMARC _aExcavación en roca _vMovimientos de tierras _9144098
942			_2ddc _cBK _n0