ELSEVIER GEO-ENGINEERING BOOK SERIES VOLUME 5 Part 4 doc

... >1 .5 0. 05 1 .5 2 m 2 40 –10 5 14 >10 <1 .5 0. 05 1 .5 2 m 20–30 mm 2 40 –10 15 23 >10 0. 05 1 .5 2 m ≤ 2,3 b 40 –10 15 23 >10 0. 05 1 .5 2 m 50 –100 mm 2,3 c 40 –10 9– 15 0. 05 1 .5 2 m ≤ 2 ,4 b 40 –10 ... m 100 40 14 30 >30 0.0 25 1 .5 2 m ≤ b 100 40 23–72 >30 0.0 25 2–3 m 100 40 23–72 >30 0.0 25 1 .5 2 m ≤ b 40 –10 5 14 >10 >1 .5 0. 05...

Ngày tải lên: 08/08/2014, 13:21

... noise 13. 12223–12267 1100 42 75 42 212 .57 . 54 5 29.7 59 .4 37.0 108.7 1.6 0 .55 Heavy burst Mod. slabbing with noise 14. 12273–12322 1090 50 70 43 312 .57 .0 45 29 .4 58 .9 36.2 107.2 1.6 0 .55 Heavy burst Mod. ... separation. 9. 11860–11917 1230 50 67 6 1 .5 3 1 2 .5 2.2 45 33.2 66 .4 24. 7 1 04. 9 2.7 0.63 Heavy burst Mod. slabbing with noise 10. 12 044 –12070 1180 42 70...

Ngày tải lên: 08/08/2014, 13:21

... Cement 44 6 55 8 > ;4 45 2. Blended sand 6. 35 mm maximum size 148 3–1679 697–880 3. 10 mm aggregate – 700–8 75 4. Steel fiber 39– 157 39– 150 5. Accelerator Varies Varies 6. Water/cement (by weight) 0 .40 –0. 45 ... tunnel driving (i) Perpendicular 20 to 90 ◦ along dip, 45 to 90 ◦ against dip (i) Perpendicular 20 to 45 ◦ against dip (i) Parallel 45 to 90 ◦ (ii) Parallel 20 to...

Ngày tải lên: 08/08/2014, 13:21

... extensometer 233 14. 8 Case histories 2 34 14. 9 Layout of a typical test section 238 References 239 15 Tunnelling machines 241 15. 1 General 241 15. 2 System’s mis-match 241 15. 3 Tunnel jumbo 242 15. 4 Muck ... 244 15. 5 Tunnel boring machine (TBM) 2 45 15. 6 Safety during tunnelling 247 References 248 16 Rock mass quality for tunnel boring machines (Q TBM ) 249 16.1 In...

Ngày tải lên: 08/08/2014, 13:21

... typical value (60%) Maximum value (30%) Weighted average RQD 25 65 85 67 J n 12 9 – 9 .42 J r 1 .5 3 4 2. 05 J a 42 11.9 J w 0.66 1 1 0.966 SRF 7 .5 5 2 .5 4 .5 observed parameter, i.e., 10% poorest, 60% most typical, ... undulating 1 .5 63 ◦ 56 ◦ 37 ◦ 27 ◦ 21 ◦ E. Rough, planar 1 .5 63 ◦ 56 ◦ 37 ◦ 27 ◦ 21 ◦ F. Smooth, planar 1.0 53 ◦ 45 ◦ 27 ◦ 18 ◦ 14 ◦ G. Slickens...

Ngày tải lên: 08/08/2014, 13:21

... London, Chapters5&9. Rabcewicz, L. V. (19 64 19 65) . The new Austrian tunnelling method. Water Power, Part I, 19 64, 45 3 - 45 7 ; Part II, 19 64, 51 1 -51 5; and Part III, Jan. 19 65, 19- 24. Rabcewicz, ... (MPa) (1) (2) (3) 0 .5 2.7 0.86 1 2.2 0.7 2 1 .5 0 .4 75 3 1.2 0.38 4 1.0 0.317 5 0.8 0. 25 0123 45 6 0.2 0 .4 0.6 0.8 1.0 Boundary Conditions Tunnel depth = 50...

Ngày tải lên: 08/08/2014, 13:21

... new discontinuities Less discontinuities induced in good quality rock mass 4, 1 4, 2 4, 3 4, 4 4 ,5 4, 6 5, 1 5, 2 5, 3 5, 4 5, 5 5, 6 6,1 6,2 6,3 6 ,4 6 ,5 6,6 Larger caverns may be created in better quality rock masses Fig. ... pressure phenomenon in a tunnel – Part I and II. Tunnelling and Underground Space Technology, 1(1), 35- 39 (Part I) and 41 -48 (Part II), US...

Ngày tải lên: 08/08/2014, 13:21

... (surface) 25 30 55 0. 45 Elevated (super structure) 100 30 130 0. 75 Long span bridge 250 30 280 0.90 Cut and cover 100 to 200 40 140 to 240 0.70 to 0.80 Tunnelled 150 to 50 0 50 200 to 55 0 0. 75 to 0.90 Tunnelling ... advance Favorable ground 50 –60 m/month 200–700 m/month 350 –800 m/month 150 –300 m/month 50 0– 150 0 m/month Unfavorable ground 7–10 m/month 50 –60m/month 75 150...

Ngày tải lên: 08/08/2014, 13:21

... 45 4. 8 23.8 35. 1 108.0 83 .4 70.2 7 1300 1.8 55 45 4. 8 23.1 35. 1 107.3 80 .5 70.2 8 1300 3.3 50 45 4. 8 28.0 35. 1 112.2 82.7 70.2 9 1230 2.2 50 45 4. 8 24. 7 33.2 1 04. 4 77.9 66 .4 10 1180 4. 7 42 55 ... 4. 68 6920 6220 56 30 51 30 5 ′′ × 5 ′′ H 18.9 5. 54 7860 7060 6390 58 20 6 ′′ I 12 .5 3.67 55 90 50 30 45 4 0 41 30 3790 6 ′′ I 17. 25 5.07 7100 6380 5...

Ngày tải lên: 08/08/2014, 13:21

... 1987) Catholic Males Females Protestant Males Females Velar stop 38 80 79 90 Formal speech (%) Palatal stop 52 20 20 10 Glide insertion 10 0 1 0 Velar stop 10 15 13 43 Informal Palatal stop 40 55 54 40 speech (%) Glide insertion 50 30 33 17 three phonetic values in ... 1982: 42 9); for further discussion and suggested transcriptions see Henry (1 958 : 123), Barry (1981c: 68), C...

Ngày tải lên: 05/08/2014, 14:20