Changes in the Structures and Directions of Rock Excavation Research from 1999 to 2020: A Bibliometric Study

Table 3

Analysis of the top 20 institutes.

Rank	Institute	Documents	Citations	Citations per paper
1	Chinese Academy of Sciences	278	4572	16.44604
2	China University of Mining & Technology	269	3824	14.21561
3	Wuhan University	134	1819	13.57463
4	Shandong University	118	1455	12.33051
5	Northeastern University	113	1825	16.15044
6	Central South University	91	1760	19.34066
7	Shandong University of Science Technology	79	1128	14.27848
8	Chongqing University	74	878	11.86486
9	Dalian University	65	1159	17.83077
10	Sichuan University	63	757	12.01587
11	Colorado School of Mines	59	743	12.59322
12	Laurentian University	54	3471	64.27778
13	Chengdu University Technology	54	312	5.777778
14	Monash University	49	668	13.63265
15	Tongji University	45	1063	23.62222
16	China University of Mining & Technology (Beijing)	45	658	14.62222
17	Southwest Jiaotong University	45	345	7.666667
18	Nanyang Technology University	44	1013	23.02273
19	University of the Witwatersrand	44	996	22.63636
20	Politecnico di Torino	42	628	14.95238