Research Article
A Novel Method for Evaluating Dredging Productivity Using a Data Envelopment Analysis-Based Technique
Table 5
2011 Cao Gongzhao I dredging record data.
| Work day | Hydraulic excavator (SL-330) (A) | Hydraulic excavator (320B) (B) | Daily trucks (C) | Daily dredging (m3)(D) |
| 1 | 2 | 7 | 79 | 1086 | 2 | 1 | 8 | 175 | 2936 | 3 | 1 | 8 | 385 | 6804 | 4 | 2 | 7 | 235 | 4147 | 5 | 2 | 7 | 178 | 3811 | 6 | 2 | 7 | 194 | 3763 | 7 | 2 | 7 | 353 | 6135 | 8 | 1 | 8 | 142 | 2087 | 9 | 1 | 8 | 194 | 4203 | 10 | 2 | 7 | 203 | 4565 | 11 | 2 | 7 | 292 | 4857 | 12 | 2 | 7 | 292 | 5280 | 13 | 2 | 7 | 193 | 3288 | 14 | 1 | 8 | 193 | 5367 | 15 | 1 | 8 | 296 | 5078 | 16 | 2 | 7 | 267 | 4569 | 17 | 2 | 7 | 275 | 4636 | 18 | 2 | 7 | 277 | 4650 | 19 | 2 | 7 | 302 | 5173 | 20 | 1 | 8 | 351 | 6055 | 21 | 2 | 7 | 427 | 7397 | 22 | 2 | 7 | 443 | 7741 | 23 | 2 | 7 | 409 | 7164 | 24 | 1 | 8 | 310 | 5431 | 25 | 2 | 7 | 333 | 5835 | 26 | 2 | 7 | 359 | 6290 | 27 | 2 | 7 | 443 | 7751 | 28 | 1 | 8 | 343 | 6007 | 29 | 1 | 8 | 403 | 7062 | 30 | 2 | 7 | 412 | 7210 | 31 | 2 | 7 | 423 | 7396 | 32 | 2 | 7 | 372 | 6510 | 33 | 2 | 7 | 421 | 7375 | 34 | 1 | 8 | 423 | 7410 | 35 | 2 | 7 | 422 | 7384 | 36 | 2 | 7 | 435 | 7620 | 37 | 2 | 7 | 437 | 7627 | 38 | 1 | 8 | 449 | 7841 | 39 | 2 | 7 | 449 | 7847 | 40 | 2 | 7 | 450 | 7866 | 41 | 2 | 7 | 434 | 7592 | 42 | 2 | 7 | 436 | 7625 | 43 | 1 | 8 | 426 | 7452 | 44 | 2 | 7 | 431 | 7540 | 45 | 2 | 7 | 440 | 7708 | 46 | 2 | 7 | 437 | 7643 | 47 | 1 | 8 | 383 | 6703 | 48 | 1 | 8 | 433 | 7580 | 49 | 1 | 8 | 436 | 7634 | 50 | 2 | 7 | 443 | 7754 | 51 | 2 | 7 | 435 | 7616 | 52 | 1 | 8 | 437 | 7643 | 53 | 2 | 7 | 433 | 7577 | 54 | 2 | 7 | 431 | 6754 | 55 | 2 | 7 | 443 | 7746 | 56 | 2 | 7 | 447 | 7752 | 57 | 1 | 8 | 10 | 400 | 58 | 1 | 8 | 10 | 400 | 59 | 2 | 7 | 303 | 5298 | 60 | 2 | 7 | 129 | 2266 | 61 | 2 | 7 | 40 | 686 | 62 | 2 | 7 | 252 | 5177 | 63 | 1 | 8 | 380 | 6651 | 64 | 1 | 8 | 355 | 6212 | 65 | 2 | 7 | 303 | 5298 | 66 | 2 | 7 | 129 | 2266 |
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