Propagation Laws of Reclamation Risk in Tailings Ponds Using Complex Network Theory
Abstract
:1. Introduction
2. Research Methods
2.1. Overview
2.2. Identification Method
2.2.1. The Definition of Hazard
2.2.2. Hazard Identification and Data Extraction
2.3. Network Model
2.3.1. Model Building
2.3.2. Degree
2.3.3. Average Path Length and Diameter
2.3.4. Clustering Coefficient
2.3.5. Betweenness Centrality
3. Results
3.1. Hazard List
3.2. Mode of the ENRRTP
3.2.1. Network Model
3.2.2. Degree and Degree Distribution
3.2.3. Average Path Length and Diameter of the ENRRTP
3.2.4. Clustering Coefficient and Small World Property
3.2.5. Betweenness Centrality and Key Hazards
4. Application Case
5. Discussion
6. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
Appendix A
Tailings Pond Subsystem | Elements of the System | Number (v) | Hazard Name | Number of Hazards Caused |
---|---|---|---|---|
Pond area system | Pond environment | 1 | Environmental pollution | 338, 358, 359 |
2 | Flood | 1, 7, 9, 19, 60, 62, 64–67, 69, 150, 156, 158, 167, 190–193, 195, 273, 325, 358 | ||
3 | Ice and snow | 19, 67, 195 | ||
4 | Strong wind | 1, 7, 19, 66, 142, 325 | ||
5 | Heavy rainfall | 9, 19, 67, 69, 150, 193, 195 | ||
6 | Extreme temperature changes | 19, 62, 65–67, 191, 267, 325, 358 | ||
7 | Surge | 62, 65–67, 69, 150, 190, 193, 358 | ||
8 | Beyond standard earthquake | 19, 60, 62, 64–66, 70, 136, 150, 191–192, 267, 273, 325, 358 | ||
9 | Mudslide | 1, 39, 358 | ||
10 | Gravel foundation | 157 | ||
11 | Liquefied soil, soft clay and collapsible loess foundation | 68, 70, 135–136, 157 | ||
12 | Water burst in the tailings pond | 158 | ||
13 | Karst cave or existence of mine shafts | 68, 135–136, 158 | ||
17 | Inadequate research on adverse geological problems and improper handling measures | 19 | ||
19 | Landslides in the tailings pond | 1, 7, 9, 39, 195, 358 | ||
20 | The overburden of the bank slope connected to both ends of the tailings dam is thin | 158 | ||
21 | The rock on the bank slope is broken, joints are developed, or faults pass through | 19, 158 | ||
22 | Animals burrow, camp, and graze illegally | 19, 64, 66, 142, 150, 158 | ||
23 | Private digging in the tailings impoundment | 19, 64, 66, 142, 150 | ||
24 | Illegal soil borrowing behind the dam | 64, 66, 142, 157 | ||
25 | There are mining activities near the site | 19, 62, 64, 66, 142 | ||
Selection of pond location | 27 | Located on the upstream of important facilities and residential areas | 338, 358 | |
28 | Located on the upwind side of the dominant wind in a concentrated residential area | 338, 358 | ||
29 | Occupy a lot of arable land and move a large number of residents | 338 | ||
30 | Located on a valuable deposit | 338 | ||
32 | Insufficient impoundment length (upstream wet tailings impoundment) | 39 | ||
34 | Large catchment area | 195 | ||
39 | Insufficient storage capacity of tailings pond | 190 | ||
40 | The grade of tailings pond does not match the grade of the structures | 338 | ||
42 | No antifreeze measures have been taken for tailings facilities | 66, 191 | ||
43 | Anti-freezing measures have not been finished before freezing | 66, 191, 338 | ||
44 | Blasting construction does not meet the technical specifications | 19, 62, 64–66, 191 | ||
Material system | 45 | Tailings particle size/gradation does not meet the requirements | 47, 51, 66, 68, 70, 61, 142, 234 | |
47 | Excessive tailings unit weight | 51–52, 68, 61 | ||
49 | Strongly corrosive tailings | 238 | ||
51 | Unqualified dry beach covering materials | 53, 142, 157–158, 195 | ||
52 | Unqualified filling materials | 64–68, 70, 73, 135–136, 157 | ||
53 | Erodible tailings exposure | 157 | ||
54 | Mismatch between tailings pond type and stockpiled waste | 1 | ||
Dam system | Dam body | 60 | Dam break | 1, 9, 338, 358, 359 |
62 | Local landslide and collapse of the dam | 1, 9, 60, 63, 338 | ||
63 | Decrease of dam elevation | 39, 190, 194 | ||
64 | Dam instability | 60, 62 | ||
65 | Dam deformation | 62, 64, 157, 267, 273 | ||
66 | Dam crack | 62, 64, 73, 158 | ||
67 | Dam surface water saturation | 62, 64–66, 70, 73, 157 | ||
68 | Uneven settlement of the dam | 62–66, 191–192, 267, 273 | ||
69 | Scour the dam | 1, 62, 64–66 | ||
70 | Tailings liquefaction | 62, 64, 68, 136, 156–158 | ||
73 | Poor stability of tailings dam slope | 62, 64, 70 | ||
77 | The tailings dam slope ratio is unreasonable | 62, 64–65, 70, 73, 157 | ||
78 | Unreasonable width of dam crest | 62, 64–65, 157 | ||
79 | Improper dam type selection for the initial dam | 39, 64, 157 | ||
80 | The height of initial dam is unreasonable | 39, 64–65, 73, 81, 194, 228, 338 | ||
81 | The ratio of the initial dam height to the total dam height of the upstream tailings dam is unreasonable | 64–65, 73 | ||
61 | Poor control of tailings deposits | 64–65, 68, 77, 142, 152, 157 | ||
85 | The accumulation dam is too high | 62, 64–65, 81, 338 | ||
86 | The height of the accumulation dam is lower than the height of tailings accumulation | 39, 65, 190, 194 | ||
89 | Use the upstream method to build dams on the seismic zone | 60, 62, 70 | ||
90 | Fine-grained tailings dams using direct method | 64–65, 61 | ||
93 | No filtration water and sediment storage dams are built in the centerline and downstream tailings dams | 64 | ||
94 | Unreasonable height of the filtration water and sediment storage dams | 39, 64–65 | ||
110 | Improper paving | 64–66, 68 | ||
113 | Improper unloading method | 65–66 | ||
114 | Filling and slope adjustment are not carried out at the same time | 64, 66, 77 | ||
115 | Construction machinery and personnel crossing the dam surface in violation of regulations | 65–66 | ||
116 | Resuming work in violation of regulations | 119 | ||
117 | The maintenance platform in downstream dam slope is defective | 65–66, 73, 122 | ||
119 | Construction under environmental indicators exceeding limits | 64, 77–78 | ||
120 | The subsidence allowance of the dam filling is unreasonable | 358 | ||
122 | There is a horizontal weld on the slope | 64, 66, 73 | ||
123 | Improper selection and care of slope protection turf | 73 | ||
124 | Slope cutting did not follow the design requirements | 19, 64–65 | ||
125 | Slope protection was not carried out in time | 19, 62, 64–65, 73, 122 | ||
126 | Unreasonable design of cast-in-place protective surface | 19, 62, 64–66, 73, 77, 122, 157 | ||
Dam foundation | 132 | No effective filter layer is set on the dam foundation | 157, 165 | |
135 | Uneven foundation subsidence | 63–66, 68, 73, 136, 191, 267, 273 | ||
136 | Dam foundation instability | 64–66, 68, 73 | ||
Dry beach | 142 | Raise dust in the pond area | 1, 338, 358–359 | |
143 | No watering to reduce dust | 142 | ||
144 | Insufficient dust prevention measures in the tailings accumulation area(dry) | 142 | ||
145 | No coverage measures in the pond area | 53, 142, 157 | ||
146 | The main dam has not been reclaimed and greened in time | 53, 142 | ||
147 | Insufficient soil cover or greening on the dam slope(dry) | 53, 142 | ||
148 | Weakness of paving has not been reinforced | 158, 142 | ||
130 | Poor construction quality of horizontal paving | 157, 142 | ||
149 | The length or thickness of the horizontal paving in front of the dam is insufficient | 157, 142 | ||
150 | Natural paving (covering) is destroyed | 158, 142 | ||
152 | Poor deposition control for dry beach face | 142, 157 | ||
Seepage system | 156 | Seepage damage | 1, 60, 62, 64, 338, 359 | |
157 | Filter failure | 64, 67, 136, 156, 167, 195 | ||
158 | Leakage channel | 64, 68, 135–136, 156 | ||
163 | The substandard seepage water has not been collected, recovered and treated | 1 | ||
164 | The dam foundation area between the initial dam and sediment storage dam is not equipped with drainage facilities | 157 | ||
165 | Defects of dam foundation drainage facilities | 157 | ||
167 | Seepage line is higher than control seepage line | 65–67, 70, 156 | ||
168 | Improper measures to reduce the seepage line | 167 | ||
170 | Insufficient protection measures for seepage prevention facilities | 158, 165, 183 | ||
174 | Unqualified geomembrane | 157, 165 | ||
175 | No drainage measures under the geomembrane protective layer | 157, 165 | ||
176 | Poor drainage of composite geotechnical drainage network | 157, 165 | ||
182 | Unqualified filter material | 183 | ||
183 | Filter failure | 65, 157, 165 | ||
187 | Geotextile clogged | 165, 183 | ||
Drainage system | Drainage plan | 190 | Overtopping | 1, 60, 62, 64, 69, 338, 358–359 |
191 | Fracture of drainage structure | 66, 69, 158, 192, 200 | ||
192 | Leaking drainage structure | 1, 66–67, 69, 150, 158, 195, 200 | ||
193 | Scour or cavitation drainage structures | 191–192 | ||
194 | Insufficient regulating water storage | 39 | ||
195 | Rapid rise of pond water level | 39, 65, 67, 152, 167, 190, 194 | ||
196 | No drainage facilities | 195, 200 | ||
197 | The foundation pit at the higher groundwater level has no drainage facilities | 195, 200 | ||
200 | Insufficient flood discharge capacity | 193, 195 | ||
201 | Blocking defects of flood drainage facilities | 192–193, 195, 200 | ||
202 | Unreasonable temporary flood control plan during construction period | 195, 200 | ||
203 | Improper diversion measures | 195, 200 | ||
205 | The installation location and elevation of drainage facilities do not meet the design requirements | 193, 195, 200 | ||
206 | Insufficient elevation of drainage holes in front of the dam | 200 | ||
207 | Flood drainage structures are directly located on the tailings sediment beach | 191 | ||
208 | The foundation of the flood drainage structure is set in the area with poor engineering geology | 191 | ||
209 | Insufficient foundation bearing capacity of underground flood drainage structures | 191 | ||
211 | The dry tailings pond of third–class and above adopts flood interception ditch for flood discharge | 200 | ||
212 | Drainage facilities are not located in front of the blocking dam | 193 | ||
213 | Use mechanical flood drainage | 200 | ||
214 | The on–site line setting is inconsistent with the construction drawing | 77–78, 205, 273 | ||
218 | Improper installation of energy dissipation facilities | 191, 193 | ||
219 | No energy dissipation measures have been taken in the tailings facility | 191, 193 | ||
Backwater plan | 221 | The clarified water of the tailings pond is not used for backwater utilization | 195, 338 | |
222 | One–sided pursuit of backwater quality | 195 | ||
223 | Excessive pursuit of backwater in tailings pond | 228 | ||
224 | Low tailings water recovery rate | 195, 338 | ||
225 | The backwater design of the tailings pond does not utilize the potential energy | 338 | ||
227 | Insufficient volume of backwater pond | 224 | ||
228 | Unqualified backwater quality | 1 | ||
229 | Turbid tailings water | 1 | ||
230 | Unexpected discharge or misdischarge water that does not meet the discharge standard | 1, 359 | ||
Conveyor system | Conveying facilities | 234 | Blockage or siltation | 165, 176, 191, 195, 200 |
236 | No flow and pressure detection instrument | 191, 234 | ||
238 | Serious corrosion of equipment | 191, 228, 231, 325, 338 | ||
240 | No anti–corrosion treatment in tailings facilities | 238 | ||
241 | Unqualified anti–corrosion materials | 193, 238 | ||
260 | Improper handling of local hydraulic phenomena | 234, 238, 267 | ||
Other transportation facilities | 267 | Pipes and grooves deformation | 191, 193, 234, | |
268 | Defects of the interception ring in pipe body | 69, 192–193 | ||
269 | The pipe body is in direct contact with the big rocks | 191, 267 | ||
270 | The outer wall of the pipe is not protected | 191, 267 | ||
271 | The dimensions of pipes, grooves, tunnels, etc. do not meet the requirements | 191, 193, 234, 267 | ||
272 | Pipes and grooves material unqualified | 191, 193, 267 | ||
273 | Subsidence or deformation of supporting facilities such as pipes, trenches and tunnels | 191, 267 | ||
275 | Excessive slope deviation for laying pipes, trenches, tunnels, etc. | 191, 193, 234, 267 | ||
281 | Poor quality of fill around the pipeline | 191, 267 | ||
285 | No settlement joints between pipe and well | 191, 267 | ||
286 | The joint length of the drain pipe is unreasonable | 191–192, 267 | ||
287 | Deformation joints are not provided at both ends of the drain pipe according to the design requirements | 191, 267 | ||
289 | Improper excavation (pipes, trenches, tunnels, etc.) | 65–66, 117, 120, 191 | ||
Pump | 291 | Poor construction ventilation | 358 | |
296 | Poor pump quality | 192–193, 234, 307 | ||
307 | Pump failure | 61, 192, 195, 200, 228, 338 | ||
373 | No liquid can be discharged from the sand pump | 307 | ||
374 | Insufficient liquid output from sand pump | 307 | ||
375 | Pump consumes too much power | 307 | ||
376 | Pump bearing heat | 307 | ||
377 | Deformed or broken pump shaft | 307 | ||
310 | The surrounding environment improvement does not meet the requirements | 1, 9, 19, 142 | ||
312 | Dam body renovation does not meet the requirements | 62–70, 73, 135–136, 142, 148, 157–158, 167, 183 | ||
313 | The improvement of flood discharge system does not meet the requirements | 191–192, 195, 228, 234, 267, 273, 307 | ||
315 | Unreasonable reclamation plan | 1, 19, 310, 312–313 | ||
Monitoring System | 324 | Improper selection of monitoring instruments and equipment | 327, 338, 343 | |
325 | Monitoring instrument failure, work interruption | 327, 338, 343 | ||
326 | The third–class and above tailings ponds are not equipped with monitoring facilities that combine manual and automatic monitoring | 1, 19, 22–24, 142, 327 | ||
327 | Safety monitoring facilities cannot fully reflect the operating status of the tailings pond | 1, 7, 9, 19, 22–24, 37, 45, 47, 49, 54, 65–69, 135–136, 163, 191–192, 200, 228–230, 267, 343 | ||
328 | No monitoring points are arranged outside the dam toe | 9, 19, 22–23, 142, 144, 310, 327 | ||
329 | No additional monitoring facilities are installed at the dam abutment, bedrock faults, and buried pipes in the dam | 65–69, 135–136, 191–192, 267, 327 | ||
331 | No external drainage and composition monitoring | 1, 163, 200, 228–230, 327 | ||
332 | No monitoring of groundwater and surrounding water bodies | 1, 230, 327 | ||
334 | The number of water quality monitoring wells around the tailings pond is insufficient | 1, 230, 327 | ||
Management system | 338 | Economic losses | 359 | |
339 | Insufficient capital investment | 17, 24, 42, 52, 54, 89–90, 93, 132, 145–148, 163–164, 196–197, 221, 230, 236, 240, 268, 291, 310, 312, 324, 326, 328, 329, 331–332, 334, 351 | ||
340 | Insufficient safety supervision | 7, 9, 17, 19, 22–24, 40, 42, 43–45, 47, 49, 51–52, 54, 60, 62–70, 73, 77–81, 85–86, 89–90, 93–94, 110,113–117, 119–120, 122–126, 130, 132, 135–136, 142–150, 152, 156–158, 163–168, 170, 174–176, 182–183, 187, 190–197, 200–203, 205–209, 211–214, 218–219, 221–225, 227–230, 234, 236, 238, 240–241, 260, 267–273, 275, 281, 285–287, 289, 291, 296, 307, 310, 312–313, 315, 324–329, 331–332, 334, 346, 348, 351–352, 354–355, 358 | ||
343 | Inadequate safety evaluation | 1, 19, 60, 142, 156, 190, 200, 224, 228, 327, 358–359 | ||
344 | Outdated specifications and standards for survey, design, construction, and acceptance | 17, 23–24, 27–30, 32, 40, 42–43, 61, 73, 77–81, 85–86, 89–90, 93–94, 110, 115–116, 120, 123–124, 130, 145, 157–158, 164, 168, 170, 174, 191–192, 194, 196–197, 200, 207–208, 211–212, 214, 221, 225, 227, 238, 240, 268–271, 275, 281, 285–287, 289, 296, 310, 312–313, 315, 324, 326–329, 331–332, 334, 343, 346, 351, 354, 358 | ||
345 | Defects in safety production rules and regulations and operating procedures | 23–24, 39, 42–43, 54, 80, 85–86, 90, 93–94, 110, 113–115, 119–120, 122–125, 130, 132, 142–148, 150, 157–158, 163–165, 167–168, 170, 174–175, 183, 191–193, 201, 203, 205–208, 213–214, 218–219, 221–224, 229–230, 234,236, 238, 240, 260, 267–268, 270, 275, 281, 285–289, 291, 307, 310, 312–313, 325, 343, 352, 358 | ||
346 | Improper data management | 17, 42–43, 79, 197, 205, 207–208, 225, 315, 324, 327, 343, 352 | ||
347 | Insufficient or wrong hydrological and geological data | 17, 42–43, 79, 197, 205, 207–208, 225, 309, 315, 324, 327, 343, 352 | ||
348 | Improper quality acceptance | 19, 60, 62–70, 135–136, 142, 156–158, 167, 183, 190–193, 200, 234, 238, 267, 307, 310, 312–313 | ||
351 | Improper maintenance | 60, 62, 64–70, 142, 156–158, 167, 183, 190–193, 234, 238–239, 254, 267, 307, 325 | ||
352 | Design defects of emergency plan | 1, 19, 60, 62, 142, 156, 190–191, 195, 338, 358 | ||
354 | Insufficient emergency plan drills | 1, 19, 60, 62, 142, 156, 190–191, 195, 338, 358 | ||
Personnel system | 355 | Insufficient experience in personnel or organization qualification problems | 17, 23–24, 44, 54, 61, 79, 110, 113–116, 119, 123–126, 130, 132, 143–149, 163–164, 168, 170, 174–176, 187, 196–197, 201–203, 205–209, 211–214, 218–219, 221–225, 230, 240, 260, 268–272, 275, 281, 285–289, 291, 310, 312–315, 324, 326, 328–332, 334, 343, 346–348, 351–352, 354 | |
358 | Personal injury | 338, 359 | ||
359 | Loss of reputation | 338 |
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Zhen, Z.; Zhang, Y.; Hu, M. Propagation Laws of Reclamation Risk in Tailings Ponds Using Complex Network Theory. Metals 2021, 11, 1789. https://0-doi-org.brum.beds.ac.uk/10.3390/met11111789
Zhen Z, Zhang Y, Hu M. Propagation Laws of Reclamation Risk in Tailings Ponds Using Complex Network Theory. Metals. 2021; 11(11):1789. https://0-doi-org.brum.beds.ac.uk/10.3390/met11111789
Chicago/Turabian StyleZhen, Zhixin, Ying Zhang, and Mengrong Hu. 2021. "Propagation Laws of Reclamation Risk in Tailings Ponds Using Complex Network Theory" Metals 11, no. 11: 1789. https://0-doi-org.brum.beds.ac.uk/10.3390/met11111789