A Novel Method for Evaluating Dredging Productivity Using a Data Envelopment Analysis-Based Technique

Table 1

2011 Nanhua Reservoir dredging record data.

Work day	Hydraulic excavator (SL-330) (A)	Hydraulic excavator (320B) (B)	Daily trucks (C)	Daily dredging (m^3) (D)
1	1	5	98	1668
2	1	5	98	1683
3	2	3	100	1701
4	2	3	100	1702
5	1	4	100	1700
6	1	5	99	1696
7	2	3	98	1665
8	2	4	100	1701
9	1	5	101	1716
10	1	5	101	1720
11	2	4	91	1706
12	2	4	93	1717
13	1	5	94	1729
14	1	5	95	1737
15	2	5	96	1747
16	2	5	98	1759
17	1	6	99	1770
18	1	6	100	1782
19	2	5	101	1792
20	2	5	102	1798
21	1	6	104	1826
22	1	6	106	1855
23	2	5	107	1871
24	2	6	108	1895
25	2	6	110	1925
26	2	6	112	1950
27	2	6	114	1985
28	2	6	117	2041
29	2	6	120	2093
30	2	6	116	2089
31	2	6	113	2083
32	2	6	109	2076
33	2	6	106	2067
34	2	6	103	2058
35	2	6	100	2047
36	2	6	97	2036
37	2	6	94	2024
38	2	6	92	2012
39	2	6	89	1999
40	2	6	87	1986
41	2	6	85	1973
42	2	6	83	1959
43	2	6	81	1946
44	2	6	79	1932
45	2	6	78	1918
46	2	6	76	1905
47	2	6	74	1891
48	2	6	73	1877
49	2	6	71	1863
50	2	6	70	1850
51	2	6	68	1836
52	2	6	67	1823
53	2	6	66	1809
54	2	6	65	1796