[標準規(guī)范]水利工程圍巖分類規(guī)范英文翻譯（精編）

1、1The appendix J engineering geology classification of surrounding rockJ.0.1 The engineering geologic classification of surrounding rock can be divided into preliminary classification and detailed classification. The clas

2、sification results can be used to evaluate the stability of surrounding rock and as the basis of support type. Classification of surrounding rock shall conform to table 0.1.JTable J.0.1 Engineering geology classificati

3、on of surrounding rockJ.0.2 A preliminary classification of surrounding rock is mainly on the basis of rock type and rock mass structure type or the integrite degree, rock mass is suitable for the planning and preliminar

4、y feasibility study phase, and should be in accordance with the table below.Surrounding Rock typeStability evaluationof surrounding rockSupport typeⅠ Stability: stable for a long timeⅡStable on the whole, the overall sta

5、bility of surrounding rock, won't produce plastic deformation and local combination block instability may be produced.No need supporting or use anchor at some place or filling with concrete. Big span, shotcrete, syst

6、em anchoring bolt and steel mesh.ⅢStability is poor at Some place: the strength of surrounding rock is insufficient, plastic deformation, may produce at some place, landslides or deformation may be produced when there is

7、 not supporting. The intact soft rock may be short-term instabilityShotcrete, system anchoring bolt and steel mesh, for the big span case, it should be strengthen the flexible and rigid supporting.ⅣUnstable: the stabili

8、ty of surrounding rock is short-time, larger deformation and damage can occur.ⅤVery poor stability: the surrounding rock can't keep stability at short-term. deformation and failure will occur seriously.Shotcrete, s

9、ystem anchoring bolt and steel mesh, for the big span case,strengthen the flexible and rigid supporting or pour concrete lining.3J.0.3 The determination of rock types, should comply with the table J.0.3.Table J.0.3 The

10、classification of rock typesHard Rock Soft Rockrock typesHard Rock Mid Hard Rock Little Soft Rock Soft RockSaturated uniaxial compressive strength of rockRc(Mpa)Rc>60 60≥Rc>30 30≥Rc>15 15≥Rc>5J.0.4 The determ

11、ination of rockmass integral degree, should comply with the table J.0.4Table J.0.4 The determination of rockmass integral degreeIntegral degree of rock mass Integral Relatively integral Low integral Little crush Crush

12、Group Number of structural plane development 1~2 1~2 2~3 2~3 2~3 >3 disorderlyStructural plane spacing>100 100~50 50~30 30~1085 >4Ⅱ 85≥T>65 >4Ⅲ 65≥T>45 >2Ⅳ 45≥T>25 >2Ⅴ T≤25 -Note:For Ⅰ、Ⅱ、Ⅲ、Ⅳ