CN102865080A - Induced fracture engineering arrangement and non-blasting mining process for high-geostress hard rock - Google Patents
Induced fracture engineering arrangement and non-blasting mining process for high-geostress hard rock Download PDFInfo
- Publication number
- CN102865080A CN102865080A CN2012103774772A CN201210377477A CN102865080A CN 102865080 A CN102865080 A CN 102865080A CN 2012103774772 A CN2012103774772 A CN 2012103774772A CN 201210377477 A CN201210377477 A CN 201210377477A CN 102865080 A CN102865080 A CN 102865080A
- Authority
- CN
- China
- Prior art keywords
- ore
- tunnel
- induced fracture
- rock
- mining
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000011435 rock Substances 0.000 title claims abstract description 43
- 238000005065 mining Methods 0.000 title claims abstract description 29
- 238000000034 methods Methods 0.000 title claims abstract description 25
- 238000005422 blasting Methods 0.000 title abstract description 8
- 238000004519 manufacturing process Methods 0.000 claims abstract description 29
- 230000001939 inductive effects Effects 0.000 claims abstract description 17
- 238000009423 ventilation Methods 0.000 claims abstract description 8
- 239000000428 dust Substances 0.000 claims abstract description 5
- 238000004880 explosion Methods 0.000 claims description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances data:image/svg+xml;base64,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 data:image/svg+xml;base64,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 O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 230000000694 effects Effects 0.000 claims description 8
- 239000012141 concentrate Substances 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 230000002787 reinforcement Effects 0.000 claims description 5
- 239000007921 spray Substances 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 210000001367 Arteries Anatomy 0.000 claims description 4
- 210000003462 Veins Anatomy 0.000 claims description 4
- 238000010276 construction Methods 0.000 claims description 3
- 231100001004 fissure Toxicity 0.000 claims description 3
- 239000000725 suspension Substances 0.000 claims description 3
- 238000009412 basement excavation Methods 0.000 abstract description 7
- 239000010410 layers Substances 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 7
- 229910052500 inorganic mineral Inorganic materials 0.000 description 5
- 239000011707 mineral Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000004146 energy storage Methods 0.000 description 3
- 238000005273 aeration Methods 0.000 description 2
- 239000010459 dolomite Substances 0.000 description 2
- 229910000514 dolomite Inorganic materials 0.000 description 2
- 230000003203 everyday Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound data:image/svg+xml;base64,<?xml version='1.0' encoding='iso-8859-1'?>
<svg version='1.1' baseProfile='full'
              xmlns='http://www.w3.org/2000/svg'
                      xmlns:rdkit='http://www.rdkit.org/xml'
                      xmlns:xlink='http://www.w3.org/1999/xlink'
                  xml:space='preserve'
width='300px' height='300px' viewBox='0 0 300 300'>
<!-- END OF HEADER -->
<rect style='opacity:1.0;fill:#FFFFFF;stroke:none' width='300' height='300' x='0' y='0'> </rect>
<text x='138' y='170' class='atom-0' style='font-size:40px;font-style:normal;font-weight:normal;fill-opacity:1;stroke:none;font-family:sans-serif;text-anchor:start;fill:#3B4143' >C</text>
<path d='M 168.364,138 L 168.356,137.828 L 168.334,137.657 L 168.297,137.489 L 168.246,137.325 L 168.181,137.166 L 168.103,137.012 L 168.011,136.867 L 167.908,136.729 L 167.793,136.601 L 167.667,136.483 L 167.532,136.377 L 167.388,136.282 L 167.237,136.201 L 167.079,136.132 L 166.916,136.078 L 166.749,136.037 L 166.578,136.012 L 166.407,136 L 166.235,136.004 L 166.064,136.023 L 165.895,136.056 L 165.729,136.103 L 165.569,136.165 L 165.414,136.24 L 165.266,136.328 L 165.126,136.429 L 164.996,136.541 L 164.875,136.664 L 164.766,136.797 L 164.669,136.939 L 164.584,137.088 L 164.512,137.245 L 164.454,137.407 L 164.41,137.573 L 164.38,137.743 L 164.365,137.914 L 164.365,138.086 L 164.38,138.257 L 164.41,138.427 L 164.454,138.593 L 164.512,138.755 L 164.584,138.912 L 164.669,139.061 L 164.766,139.203 L 164.875,139.336 L 164.996,139.459 L 165.126,139.571 L 165.266,139.672 L 165.414,139.76 L 165.569,139.835 L 165.729,139.897 L 165.895,139.944 L 166.064,139.977 L 166.235,139.996 L 166.407,140 L 166.578,139.988 L 166.749,139.963 L 166.916,139.922 L 167.079,139.868 L 167.237,139.799 L 167.388,139.718 L 167.532,139.623 L 167.667,139.517 L 167.793,139.399 L 167.908,139.271 L 168.011,139.133 L 168.103,138.988 L 168.181,138.834 L 168.246,138.675 L 168.297,138.511 L 168.334,138.343 L 168.356,138.172 L 168.364,138 L 166.364,138 Z' style='fill:#000000;fill-rule:evenodd;fill-opacity:1;stroke:#000000;stroke-width:0px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1;' />
<path d='M 168.364,162 L 168.356,161.828 L 168.334,161.657 L 168.297,161.489 L 168.246,161.325 L 168.181,161.166 L 168.103,161.012 L 168.011,160.867 L 167.908,160.729 L 167.793,160.601 L 167.667,160.483 L 167.532,160.377 L 167.388,160.282 L 167.237,160.201 L 167.079,160.132 L 166.916,160.078 L 166.749,160.037 L 166.578,160.012 L 166.407,160 L 166.235,160.004 L 166.064,160.023 L 165.895,160.056 L 165.729,160.103 L 165.569,160.165 L 165.414,160.24 L 165.266,160.328 L 165.126,160.429 L 164.996,160.541 L 164.875,160.664 L 164.766,160.797 L 164.669,160.939 L 164.584,161.088 L 164.512,161.245 L 164.454,161.407 L 164.41,161.573 L 164.38,161.743 L 164.365,161.914 L 164.365,162.086 L 164.38,162.257 L 164.41,162.427 L 164.454,162.593 L 164.512,162.755 L 164.584,162.912 L 164.669,163.061 L 164.766,163.203 L 164.875,163.336 L 164.996,163.459 L 165.126,163.571 L 165.266,163.672 L 165.414,163.76 L 165.569,163.835 L 165.729,163.897 L 165.895,163.944 L 166.064,163.977 L 166.235,163.996 L 166.407,164 L 166.578,163.988 L 166.749,163.963 L 166.916,163.922 L 167.079,163.868 L 167.237,163.799 L 167.388,163.718 L 167.532,163.623 L 167.667,163.517 L 167.793,163.399 L 167.908,163.271 L 168.011,163.133 L 168.103,162.988 L 168.181,162.834 L 168.246,162.675 L 168.297,162.511 L 168.334,162.343 L 168.356,162.172 L 168.364,162 L 166.364,162 Z' style='fill:#000000;fill-rule:evenodd;fill-opacity:1;stroke:#000000;stroke-width:0px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1;' />
<path d='M 168.364,146 L 168.356,145.828 L 168.334,145.657 L 168.297,145.489 L 168.246,145.325 L 168.181,145.166 L 168.103,145.012 L 168.011,144.867 L 167.908,144.729 L 167.793,144.601 L 167.667,144.483 L 167.532,144.377 L 167.388,144.282 L 167.237,144.201 L 167.079,144.132 L 166.916,144.078 L 166.749,144.037 L 166.578,144.012 L 166.407,144 L 166.235,144.004 L 166.064,144.023 L 165.895,144.056 L 165.729,144.103 L 165.569,144.165 L 165.414,144.24 L 165.266,144.328 L 165.126,144.429 L 164.996,144.541 L 164.875,144.664 L 164.766,144.797 L 164.669,144.939 L 164.584,145.088 L 164.512,145.245 L 164.454,145.407 L 164.41,145.573 L 164.38,145.743 L 164.365,145.914 L 164.365,146.086 L 164.38,146.257 L 164.41,146.427 L 164.454,146.593 L 164.512,146.755 L 164.584,146.912 L 164.669,147.061 L 164.766,147.203 L 164.875,147.336 L 164.996,147.459 L 165.126,147.571 L 165.266,147.672 L 165.414,147.76 L 165.569,147.835 L 165.729,147.897 L 165.895,147.944 L 166.064,147.977 L 166.235,147.996 L 166.407,148 L 166.578,147.988 L 166.749,147.963 L 166.916,147.922 L 167.079,147.868 L 167.237,147.799 L 167.388,147.718 L 167.532,147.623 L 167.667,147.517 L 167.793,147.399 L 167.908,147.271 L 168.011,147.133 L 168.103,146.988 L 168.181,146.834 L 168.246,146.675 L 168.297,146.511 L 168.334,146.343 L 168.356,146.172 L 168.364,146 L 166.364,146 Z' style='fill:#000000;fill-rule:evenodd;fill-opacity:1;stroke:#000000;stroke-width:0px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1;' />
<path d='M 168.364,154 L 168.356,153.828 L 168.334,153.657 L 168.297,153.489 L 168.246,153.325 L 168.181,153.166 L 168.103,153.012 L 168.011,152.867 L 167.908,152.729 L 167.793,152.601 L 167.667,152.483 L 167.532,152.377 L 167.388,152.282 L 167.237,152.201 L 167.079,152.132 L 166.916,152.078 L 166.749,152.037 L 166.578,152.012 L 166.407,152 L 166.235,152.004 L 166.064,152.023 L 165.895,152.056 L 165.729,152.103 L 165.569,152.165 L 165.414,152.24 L 165.266,152.328 L 165.126,152.429 L 164.996,152.541 L 164.875,152.664 L 164.766,152.797 L 164.669,152.939 L 164.584,153.088 L 164.512,153.245 L 164.454,153.407 L 164.41,153.573 L 164.38,153.743 L 164.365,153.914 L 164.365,154.086 L 164.38,154.257 L 164.41,154.427 L 164.454,154.593 L 164.512,154.755 L 164.584,154.912 L 164.669,155.061 L 164.766,155.203 L 164.875,155.336 L 164.996,155.459 L 165.126,155.571 L 165.266,155.672 L 165.414,155.76 L 165.569,155.835 L 165.729,155.897 L 165.895,155.944 L 166.064,155.977 L 166.235,155.996 L 166.407,156 L 166.578,155.988 L 166.749,155.963 L 166.916,155.922 L 167.079,155.868 L 167.237,155.799 L 167.388,155.718 L 167.532,155.623 L 167.667,155.517 L 167.793,155.399 L 167.908,155.271 L 168.011,155.133 L 168.103,154.988 L 168.181,154.834 L 168.246,154.675 L 168.297,154.511 L 168.334,154.343 L 168.356,154.172 L 168.364,154 L 166.364,154 Z' style='fill:#000000;fill-rule:evenodd;fill-opacity:1;stroke:#000000;stroke-width:0px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1;' />
</svg>
 data:image/svg+xml;base64,<?xml version='1.0' encoding='iso-8859-1'?>
<svg version='1.1' baseProfile='full'
              xmlns='http://www.w3.org/2000/svg'
                      xmlns:rdkit='http://www.rdkit.org/xml'
                      xmlns:xlink='http://www.w3.org/1999/xlink'
                  xml:space='preserve'
width='85px' height='85px' viewBox='0 0 85 85'>
<!-- END OF HEADER -->
<rect style='opacity:1.0;fill:#FFFFFF;stroke:none' width='85' height='85' x='0' y='0'> </rect>
<text x='35.0455' y='53.5909' class='atom-0' style='font-size:23px;font-style:normal;font-weight:normal;fill-opacity:1;stroke:none;font-family:sans-serif;text-anchor:start;fill:#3B4143' >C</text>
<path d='M 53.5909,35.0455 L 53.5866,34.9458 L 53.5738,34.8469 L 53.5525,34.7495 L 53.5229,34.6542 L 53.4852,34.5619 L 53.4398,34.4731 L 53.3868,34.3886 L 53.3268,34.3089 L 53.2602,34.2347 L 53.1874,34.1665 L 53.1091,34.1048 L 53.0257,34.0501 L 52.9379,34.0027 L 52.8464,33.9631 L 52.7518,33.9314 L 52.6549,33.908 L 52.5563,33.8931 L 52.4568,33.8866 L 52.357,33.8888 L 52.2579,33.8995 L 52.16,33.9187 L 52.0642,33.9462 L 51.971,33.9819 L 51.8813,34.0254 L 51.7957,34.0765 L 51.7147,34.1348 L 51.6391,34.1998 L 51.5693,34.2711 L 51.506,34.3481 L 51.4494,34.4303 L 51.4002,34.517 L 51.3586,34.6077 L 51.3249,34.7015 L 51.2995,34.798 L 51.2824,34.8962 L 51.2738,34.9956 L 51.2738,35.0953 L 51.2824,35.1947 L 51.2995,35.2929 L 51.3249,35.3894 L 51.3586,35.4833 L 51.4002,35.5739 L 51.4494,35.6606 L 51.506,35.7428 L 51.5693,35.8198 L 51.6391,35.8911 L 51.7147,35.9561 L 51.7957,36.0144 L 51.8813,36.0655 L 51.971,36.109 L 52.0642,36.1447 L 52.16,36.1722 L 52.2579,36.1914 L 52.357,36.2021 L 52.4568,36.2043 L 52.5563,36.1978 L 52.6549,36.1829 L 52.7518,36.1595 L 52.8464,36.1279 L 52.9379,36.0882 L 53.0257,36.0408 L 53.1091,35.9861 L 53.1874,35.9244 L 53.2602,35.8562 L 53.3268,35.782 L 53.3868,35.7023 L 53.4398,35.6178 L 53.4852,35.529 L 53.5229,35.4367 L 53.5525,35.3414 L 53.5738,35.244 L 53.5866,35.1451 L 53.5909,35.0455 L 52.4318,35.0455 Z' style='fill:#000000;fill-rule:evenodd;fill-opacity:1;stroke:#000000;stroke-width:0px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1;' />
<path d='M 53.5909,48.9545 L 53.5866,48.8549 L 53.5738,48.756 L 53.5525,48.6586 L 53.5229,48.5633 L 53.4852,48.471 L 53.4398,48.3822 L 53.3868,48.2977 L 53.3268,48.218 L 53.2602,48.1438 L 53.1874,48.0756 L 53.1091,48.0139 L 53.0257,47.9592 L 52.9379,47.9118 L 52.8464,47.8721 L 52.7518,47.8405 L 52.6549,47.8171 L 52.5563,47.8022 L 52.4568,47.7957 L 52.357,47.7979 L 52.2579,47.8086 L 52.16,47.8278 L 52.0642,47.8553 L 51.971,47.891 L 51.8813,47.9345 L 51.7957,47.9856 L 51.7147,48.0439 L 51.6391,48.1089 L 51.5693,48.1802 L 51.506,48.2572 L 51.4494,48.3394 L 51.4002,48.4261 L 51.3586,48.5167 L 51.3249,48.6106 L 51.2995,48.7071 L 51.2824,48.8053 L 51.2738,48.9047 L 51.2738,49.0044 L 51.2824,49.1038 L 51.2995,49.202 L 51.3249,49.2985 L 51.3586,49.3923 L 51.4002,49.483 L 51.4494,49.5697 L 51.506,49.6519 L 51.5693,49.7289 L 51.6391,49.8002 L 51.7147,49.8652 L 51.7957,49.9235 L 51.8813,49.9746 L 51.971,50.0181 L 52.0642,50.0538 L 52.16,50.0813 L 52.2579,50.1005 L 52.357,50.1112 L 52.4568,50.1134 L 52.5563,50.1069 L 52.6549,50.092 L 52.7518,50.0686 L 52.8464,50.0369 L 52.9379,49.9973 L 53.0257,49.9499 L 53.1091,49.8952 L 53.1874,49.8335 L 53.2602,49.7653 L 53.3268,49.6911 L 53.3868,49.6114 L 53.4398,49.5269 L 53.4852,49.4381 L 53.5229,49.3458 L 53.5525,49.2505 L 53.5738,49.1531 L 53.5866,49.0542 L 53.5909,48.9545 L 52.4318,48.9545 Z' style='fill:#000000;fill-rule:evenodd;fill-opacity:1;stroke:#000000;stroke-width:0px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1;' />
<path d='M 53.5909,39.6818 L 53.5866,39.5822 L 53.5738,39.4833 L 53.5525,39.3858 L 53.5229,39.2906 L 53.4852,39.1983 L 53.4398,39.1095 L 53.3868,39.025 L 53.3268,38.9453 L 53.2602,38.8711 L 53.1874,38.8029 L 53.1091,38.7412 L 53.0257,38.6864 L 52.9379,38.6391 L 52.8464,38.5994 L 52.7518,38.5678 L 52.6549,38.5444 L 52.5563,38.5294 L 52.4568,38.523 L 52.357,38.5251 L 52.2579,38.5359 L 52.16,38.555 L 52.0642,38.5826 L 51.971,38.6183 L 51.8813,38.6618 L 51.7957,38.7129 L 51.7147,38.7712 L 51.6391,38.8362 L 51.5693,38.9075 L 51.506,38.9845 L 51.4494,39.0667 L 51.4002,39.1534 L 51.3586,39.244 L 51.3249,39.3379 L 51.2995,39.4343 L 51.2824,39.5326 L 51.2738,39.632 L 51.2738,39.7317 L 51.2824,39.831 L 51.2995,39.9293 L 51.3249,40.0257 L 51.3586,40.1196 L 51.4002,40.2103 L 51.4494,40.297 L 51.506,40.3792 L 51.5693,40.4562 L 51.6391,40.5274 L 51.7147,40.5925 L 51.7957,40.6507 L 51.8813,40.7018 L 51.971,40.7454 L 52.0642,40.7811 L 52.16,40.8086 L 52.2579,40.8278 L 52.357,40.8385 L 52.4568,40.8406 L 52.5563,40.8342 L 52.6549,40.8192 L 52.7518,40.7959 L 52.8464,40.7642 L 52.9379,40.7246 L 53.0257,40.6772 L 53.1091,40.6225 L 53.1874,40.5608 L 53.2602,40.4926 L 53.3268,40.4183 L 53.3868,40.3387 L 53.4398,40.2541 L 53.4852,40.1654 L 53.5229,40.073 L 53.5525,39.9778 L 53.5738,39.8804 L 53.5866,39.7815 L 53.5909,39.6818 L 52.4318,39.6818 Z' style='fill:#000000;fill-rule:evenodd;fill-opacity:1;stroke:#000000;stroke-width:0px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1;' />
<path d='M 53.5909,44.3182 L 53.5866,44.2185 L 53.5738,44.1196 L 53.5525,44.0222 L 53.5229,43.927 L 53.4852,43.8346 L 53.4398,43.7459 L 53.3868,43.6613 L 53.3268,43.5817 L 53.2602,43.5074 L 53.1874,43.4392 L 53.1091,43.3775 L 53.0257,43.3228 L 52.9379,43.2754 L 52.8464,43.2358 L 52.7518,43.2041 L 52.6549,43.1808 L 52.5563,43.1658 L 52.4568,43.1594 L 52.357,43.1615 L 52.2579,43.1722 L 52.16,43.1914 L 52.0642,43.2189 L 51.971,43.2546 L 51.8813,43.2982 L 51.7957,43.3493 L 51.7147,43.4075 L 51.6391,43.4726 L 51.5693,43.5438 L 51.506,43.6208 L 51.4494,43.703 L 51.4002,43.7897 L 51.3586,43.8804 L 51.3249,43.9743 L 51.2995,44.0707 L 51.2824,44.169 L 51.2738,44.2683 L 51.2738,44.368 L 51.2824,44.4674 L 51.2995,44.5657 L 51.3249,44.6621 L 51.3586,44.756 L 51.4002,44.8466 L 51.4494,44.9333 L 51.506,45.0155 L 51.5693,45.0925 L 51.6391,45.1638 L 51.7147,45.2288 L 51.7957,45.2871 L 51.8813,45.3382 L 51.971,45.3817 L 52.0642,45.4174 L 52.16,45.445 L 52.2579,45.4641 L 52.357,45.4749 L 52.4568,45.477 L 52.5563,45.4706 L 52.6549,45.4556 L 52.7518,45.4322 L 52.8464,45.4006 L 52.9379,45.3609 L 53.0257,45.3136 L 53.1091,45.2588 L 53.1874,45.1971 L 53.2602,45.1289 L 53.3268,45.0547 L 53.3868,44.975 L 53.4398,44.8905 L 53.4852,44.8017 L 53.5229,44.7094 L 53.5525,44.6142 L 53.5738,44.5167 L 53.5866,44.4178 L 53.5909,44.3182 L 52.4318,44.3182 Z' style='fill:#000000;fill-rule:evenodd;fill-opacity:1;stroke:#000000;stroke-width:0px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1;' />
</svg>
 [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002367 phosphate rock Substances 0.000 description 1
- 229910052904 quartz Inorganic materials 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials data:image/svg+xml;base64,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 data:image/svg+xml;base64,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 O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000002269 spontaneous Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000003325 tomography Methods 0.000 description 1
Abstract
The invention discloses an induced fracture engineering arrangement and non-blasting mining process for high-geostress hard rock. An induction roadway which is 3 meters high and 4 meters wide is excavated in a mine layer to be exploited by using blasting or relevant machinery (such as a heading machine), the excavation of the roadway causes the adjustment of geostress to prompt ores to fracture, local ores can avalanche spontaneously in a short period after the induction roadway is excavated, and other ores which do not avalanche can be mined in a mechanical mode, accordingly, the production capability is improved. During the continuous operation after the induced fracture of mine rock, the roof support for workers and devices to pass through should be strengthened, an anchor net supporting mode is selected, and relevant devices of a heading machine and the like are used for non-blasting mining of fractured rock, ventilation during non-blasting mining should be enhanced, and measures of drawing type local fans and the like are used for performing local ventilation and dust removing. The induced fracture engineering arrangement and non-blasting mining process for high-geostress hard rock is high in mechanical degree, low in labor intensity, high in production efficiency and large in production capability.
Description
Technical field
The present invention relates to a kind of mining technology, particularly relate to a kind of high-ground stress mine induced fracture, non-explosion continuous mining technology.The method mainly is applicable to high buried depth ore body, and orebody trend is long, ore body is more regular, more than the rock moderately stable of ore deposit, the exploitation of level～gentle dip～Medium Thickness And Medium Slope Angle ore body.
Background technology
Increasing mine enters the deep mining stage, high buried depth just means high-ground stress, show the phenomenons such as " cutting a hole well explosive ", " crackedization of rock mass after the excavation off-load ", " rock autoclasis after the microvariations " in the heavily stressed hard rock digging process, and bring out easily rock burst, the subregion disaster such as break, safe and efficient production has been brought inconvenience.Succeeding in developing of coal-winning machine brought up colliery " the comprehensive method of adopting of underground coal mine exploitation ", emerges a large amount of ten million ton of mine; Succeeding in developing of opencut main equipment realized large-scale and ultra-large type opencut " interruption-continuous mining technology " theory, significantly promoted the production capacity of surface mine; The metal mine underground mining almost all adopts the blasting method back production, and narrow and small underground roadway is not suitable for main equipment and uses, and production capacity is limited.Therefore, take full advantage of the high energy storage induced fracture ore of heavily stressed hard rock, realize that non-explosion high-efficiency mining is core of innovation of the present invention.
Summary of the invention
Technical problem to be solved by this invention provides the high-ground stress hard rock induced fracture engineering that a kind of mechanization degree is high, labour intensity is low, production efficiency is high, production capacity is large and arranges and non-explosion process for stoping.
In order to solve the problems of the technologies described above, high-ground stress hard rock induced fracture engineering provided by the invention arranges and non-explosion process for stoping that its process conditions are as follows:
1, deep high-ground stress mining:
More than the mining degree of depth 600m, the slanting angle of ore body is not limit; Orebody thickness 15m induces the tunnel across pitch to arrange with interior ore body, when surpassing 15m, induces the tunnel capwise to arrange, more than rock equal moderately stable in ore deposit reaches;
2, induce the tunnel to be laid in the ore bed arteries and veins:
Depending on upper and lower armor rock degree of stability, to induce the tunnel to be laid in the more firm ore body of country rock one side, induce tunnel size height * wide=3m * 4m, if the mining device size is larger after next step fracturing, suitably increase the size of inducing the tunnel, it is square or trapezoidal inducing the tunnel form, is conducive to geostatic stress and concentrates, act on and induce ore bed around the tunnel, induced fracture ore;
3, ore back production behind the induced fracture:
The induced fracture degree depends on that ore body developmental joint fissure degree, stress of primary rock size and stress concentrates level, if scraper relevant device ore removal is directly used in the avalanche of ore large tracts of land fracturing; If the fracturing effect is only limited to the ore body propagation of internal cracks, without extensive avalanche phenomenon, exploit continuously with the non-explosion of development machine relevant device, be connected ore removal and mining device, can realize the continuous stoping truly in similar colliery;
4, carry out personnel and equipment by the roof timbering work in zone: adopting bolting with wire mesh is main support pattern, guarantee the steady of roof in non-explosion exploitation process, inducing back to utilize the split anchor pole, construction parameter is 2 * 2m, and suspension steel mesh reinforcement, grid is 100mm * 100mm, and every wire lath size is 1000mm * 2000mm;
5, aeration technology in the exploitation process: good for guaranteeing operating environment, adopt pull-out type portable blower and the dedusting of artificial water curtain dual mode, to induce the pull-out type portable blower is set on the wall, portable blower in time extends to the scope of operation; Choose larger intensive fountain head and make intensive fountain head by oneself, activity duration water spray dedusting.
Adopt the high-ground stress hard rock induced fracture engineering of technique scheme to arrange and non-explosion process for stoping, be applicable to deeps mines, it is the above mine of mining depth 600m, after entering deep mining, the vertical stress of primary rock that gravity causes add tectonic stress usually surpass the compressive strength of engineering rock mass (＞20MPa) since the caused stress of engineering excavation concentrate level then especially much larger than the intensity of engineering rock mass (＞40MPa).At this moment, ore is in high energy storage state, utilize himself high energy storage fracturing, high * wide=3m * 4m of application explosion or associated mechanical (such as development machine) excavation induces the tunnel in layer to be opened a mine, induce the excavation in tunnel to cause that the geostatic stress adjustment can impel ore to break, induce behind the roadway excavation in the short time, local ore can spontaneous avalanche, other not the ore of avalanche can use the mechanical system back production, production capacity is improved.Behind the rock induced fracture of ore deposit, continue operation, strengthen personnel and equipment by the roof timbering in area, choose the bolting with wire mesh mode, and carry out the non-explosion back production of ore after the fracturing with relevant devices such as development machines, ventilation when noting strengthening non-explosion back production relates to the pull-out type portable blower and carries out the measures such as local ventilation dedusting in the patent.
Its beneficial effect of the present invention is:
1. mechanization degree is high, labour intensity is low
Can adopt the trackless equipment exploitation behind the ore induced fracture, be equipped with the advanced winning equipments such as dump truck, rock bolting jumbo in scraper and the hole, not only mechanization degree is high, and has saved the labour, reduce workman's labour intensity, strengthened the safety of mining work efficiency and operation.
2. production efficiency is high, production capacity is large
Single mineral building production capacity is 515t/d during the blasting method exploitation; And ore extraction behind the induced fracture, single mineral building two classes every day, general 6 hours of per tour effective production time, then machine instruction statement mining mineral building production capacity is about 867t/d, and production capacity has improved 352t/d, has improved about 68%.
In sum, the present invention is that the high-ground stress hard rock induced fracture engineering that a kind of mechanization degree is high, labour intensity is low, production efficiency is high, production capacity is large is arranged and non-explosion process for stoping.
Description of drawings
Fig. 1 is that the present invention induces tunnel fracturing schematic diagram.
Fig. 2 is for inducing tunnel laying and non-popping to adopt schematic diagram.
Fig. 3 is to cut-away view along III-III among Fig. 2.
Fig. 4 is to cut-away view along II-II among Fig. 2.
Fig. 5 is for inducing lane, tunnel profile.
Fig. 6 is that bolting with wire mesh is schematic diagram.
Fig. 7 is pull-out type portable blower scheme of installation.
The specific embodiment
The invention will be further described below in conjunction with accompanying drawing.
Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 and Fig. 6, among the figure: the 1-crossdrift, 2-induces the tunnel, 3-the first machine pick tunnel, 4-the second machine pick tunnel, the 5-development machine is prepared the space, 6-pull-out type portable blower and air duct, the upper armor rock of 7-, 8-ore bed, 9-lower wall country rock, the 10-induced fracture, 11-exploits disturbance, 12-stress is concentrated, 13-steel mesh reinforcement, 14-split anchor pole, high-ground stress hard rock induced fracture engineering provided by the invention arranges and non-explosion process for stoping that its process conditions are as follows:
1, deep high-ground stress mining:
More than the mining degree of depth 600m; The slanting angle of ore body is not limit; Orebody thickness 15m induces the tunnel across pitch to arrange with interior ore body, when surpassing 15m, induces the tunnel capwise to arrange, more than rock equal moderately stable in ore deposit reaches;
2, induce the tunnel to be laid in the ore bed arteries and veins:
Depending on upper and lower armor rock degree of stability, to induce the tunnel to be laid in the more firm ore body of country rock one side, induce tunnel size height * wide=3m * 4m, if the mining device size is larger after next step fracturing, suitably increase the size of inducing the tunnel, it is square or trapezoidal inducing the tunnel form, is conducive to geostatic stress and concentrates, act on and induce ore bed around the tunnel, induced fracture ore;
3, ore back production behind the induced fracture:
The induced fracture degree depends on that ore body developmental joint fissure degree, stress of primary rock size and stress concentrates level, if scraper relevant device ore removal is directly used in the avalanche of ore large tracts of land fracturing; If the fracturing effect is only limited to the ore body propagation of internal cracks, without extensive avalanche phenomenon, exploit continuously with the non-explosion of development machine relevant device, be connected ore removal and mining device, can realize the continuous stoping truly in similar colliery;
4, carry out personnel and equipment by the roof timbering work in zone: adopting bolting with wire mesh is main support pattern, guarantee the steady of roof in non-explosion exploitation process, inducing back to utilize the split anchor pole, construction parameter is 2 * 2m, and suspension steel mesh reinforcement, grid is 100mm * 100mm, and every wire lath size is 1000mm * 2000mm.
5, aeration technology in the exploitation process: good for guaranteeing operating environment, adopt pull-out type portable blower and the dedusting of artificial water curtain dual mode, to induce the pull-out type portable blower is set on the wall, portable blower in time extends to the scope of operation; Choose larger intensive fountain head and make intensive fountain head by oneself, activity duration water spray dedusting.
Embodiment 1: Kaiyang phosphate rocks high-ground stress hard rock induced fracture engineering is arranged and technology.
Ore deposit, road level ground limit of mining is the part of the foreign-water anticline east wing, and south gets E 14+40 exploration line, long 2880m is moved towards to the F210 tomography in north; Ore body Average True thickness 6.5m, 33 ° of mean obliquities, unit weight is 2.78t/m
3Tendency is 100 °～125 °, and ore bed is more stable at the thickness of walking to make progress; Grade of ore average out to 34.03%; Ore bed and roof and floor country rock boundary line are clear, and top board is dolomite, and firm, the ore bed immediate bottom is quartz sandstone or red shale, moderately stable.
Specific embodiments
1. because 33 ° at the slanting angle of ore body and upper dish dolomite are firm, thus the trapezoidal tunnel of inducing selected, the upper dish of the ore bed of laying, the concrete size in tunnel is as shown in Figure 1.Induce in the ore bed arteries and veins of tunnel layout.
2. after excavation is induced tunnel fracturing ore, use development machine to carry out constantly with the ore of scraper cleaning extraction, directly being transported to drop shaft or truck transport to drop shaft along inducing tunnel ore back production in the exploitation process.
3. adopt bolting with wire mesh, anchor pole is selected the split anchor pole, spacing * array pitch=0.9m * 1.5m, and hang steel mesh reinforcement, and grid is 100mm * 100mm, every wire lath size is 1000mm * 2000mm.
4. install the pull-out type portable blower and carry out local ventilation, guarantee that the operating environment of the non-quick-fried exploitated ore of machinery is good, avoid dust to cross operating personnel's harm; And with fountain head water spray dedusting within the activity duration.
This induced fracture, non-quick-fried mining methods increase substantially mine capacity, single mineral building two classes every day, and general 6 hours of per tour effective production time, then machine instruction statement mining mineral building production capacity is about 867t/d, has improved about 70% than explosion back production mode.
Claims (5)
1. a high-ground stress hard rock induced fracture engineering is arranged and non-explosion process for stoping, it is characterized in that:
(1), deep high-ground stress mining:
More than the mining degree of depth 600m, the slanting angle of ore body is not limit; Orebody thickness 15m induces the tunnel across pitch to arrange with interior ore body, when surpassing 15m, induces the tunnel capwise to arrange, the ore deposit rock be moderately stable and more than;
(2), induce the tunnel to be laid in the ore bed arteries and veins:
Depending on upper and lower armor rock degree of stability, will induce the tunnel to be laid in the more firm ore bed of country rock one side, induced fracture ore;
(3), ore back production behind the induced fracture:
The induced fracture degree depends on that ore body developmental joint fissure degree, stress of primary rock size and stress concentrates level, if scraper relevant device ore removal is directly used in the avalanche of fracturing ore large tracts of land; If the fracturing effect is only limited to the ore body propagation of internal cracks, without extensive avalanche phenomenon, with the non-explosion continuous stoping of development machine relevant device ore, be connected back production and ore removal equipment, realize the continuous stoping truly in similar colliery;
(4), carry out personnel and equipment by the roof timbering work in zone;
(5), strengthen dust removal by ventilation in the exploitation process.
2. high-ground stress hard rock induced fracture engineering according to claim 1 is arranged and non-explosion process for stoping, it is characterized in that: the described tunnel of inducing is of a size of: height * wide=3m * 4m, if the mining device size is larger after next step fracturing, suitably increase the size of inducing the tunnel.
3. high-ground stress hard rock induced fracture engineering according to claim 1 is arranged and non-explosion process for stoping, and it is characterized in that: the described tunnel form of inducing is square or trapezoidal, is conducive to geostatic stress and concentrates, and acts on and induces ore bed around the tunnel.
4. high-ground stress hard rock induced fracture engineering according to claim 1 and 2 is arranged and non-explosion process for stoping, it is characterized in that: the personnel that carry out described in the above-mentioned steps (4) and equipment are by the roof timbering work in zone, namely utilize the split anchor pole at the described back of inducing, construction parameter is 2 * 2m, and suspension steel mesh reinforcement, grid is 100mm * 100mm, and every wire lath size is 1000mm * 2000mm.
5. high-ground stress hard rock induced fracture engineering according to claim 1 and 2 is arranged and non-explosion process for stoping, it is characterized in that: strengthen dust removal by ventilation in the exploitation process described in the above-mentioned steps (4), namely adopt and set up pull-out type portable blower and the dust removal by ventilation of water spray dual mode, described pull-out type portable blower and artificial water curtain dedusting, namely inducing wall that the pull-out type portable blower is set, the portable blower air duct in time extends to the scope of operation; Make intensive fountain head by oneself, activity duration water spray dedusting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103774772A CN102865080A (en) | 2012-10-08 | 2012-10-08 | Induced fracture engineering arrangement and non-blasting mining process for high-geostress hard rock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103774772A CN102865080A (en) | 2012-10-08 | 2012-10-08 | Induced fracture engineering arrangement and non-blasting mining process for high-geostress hard rock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102865080A true CN102865080A (en) | 2013-01-09 |
Family
ID=47444181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103774772A Pending CN102865080A (en) | 2012-10-08 | 2012-10-08 | Induced fracture engineering arrangement and non-blasting mining process for high-geostress hard rock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102865080A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103791789A (en) * | 2014-01-13 | 2014-05-14 | 河海大学 | Blasting construction method based on certain angle formed between boreholes and joints |
| CN104314574A (en) * | 2014-10-13 | 2015-01-28 | 福州市规划设计研究院 | Hard rock tunnel non-blasting digging blocking method and construction method |
| CN109026005A (en) * | 2018-09-07 | 2018-12-18 | 陕西华源矿业有限责任公司 | A kind of comprehensive mechanization falls mine stripping method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201254994Y (en) * | 2008-07-24 | 2009-06-10 | 义马煤业(集团)有限责任公司 | Advanced supporting construction for arched section tunnel composite support working surface |
| CN201254993Y (en) * | 2008-07-24 | 2009-06-10 | 义马煤业(集团)有限责任公司 | O-shaped composite supporting construction for tunnel |
| CN101469612A (en) * | 2007-12-26 | 2009-07-01 | 孙世超 | Mining method for segmented metallic ore |
| RU2381369C1 (en) * | 2008-08-28 | 2010-02-10 | Открытое акционерное общество "Научно-исследовательский институт горной геомеханики и маркшейдерского дела - Межотраслевой научный центр ВНИМИ" | Method for prevention of rock bursts in rocks of mine soil |
| CN101737051A (en) * | 2009-12-14 | 2010-06-16 | 昆明理工大学 | Covering layer forming method of blind ore bodies |
| CN102226396A (en) * | 2011-05-19 | 2011-10-26 | 中南大学 | Non-explosive mining method by excavation, artificial group-column reconstruction, long-hole caving and subsequent filling |
-
2012
- 2012-10-08 CN CN2012103774772A patent/CN102865080A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101469612A (en) * | 2007-12-26 | 2009-07-01 | 孙世超 | Mining method for segmented metallic ore |
| CN201254994Y (en) * | 2008-07-24 | 2009-06-10 | 义马煤业(集团)有限责任公司 | Advanced supporting construction for arched section tunnel composite support working surface |
| CN201254993Y (en) * | 2008-07-24 | 2009-06-10 | 义马煤业(集团)有限责任公司 | O-shaped composite supporting construction for tunnel |
| RU2381369C1 (en) * | 2008-08-28 | 2010-02-10 | Открытое акционерное общество "Научно-исследовательский институт горной геомеханики и маркшейдерского дела - Межотраслевой научный центр ВНИМИ" | Method for prevention of rock bursts in rocks of mine soil |
| CN101737051A (en) * | 2009-12-14 | 2010-06-16 | 昆明理工大学 | Covering layer forming method of blind ore bodies |
| CN102226396A (en) * | 2011-05-19 | 2011-10-26 | 中南大学 | Non-explosive mining method by excavation, artificial group-column reconstruction, long-hole caving and subsequent filling |
Non-Patent Citations (1)
| Title |
|---|
| 姚金蕊等: "基于地压诱导致裂的高应力硬岩矿床优化回采数值模拟", 《TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103791789A (en) * | 2014-01-13 | 2014-05-14 | 河海大学 | Blasting construction method based on certain angle formed between boreholes and joints |
| CN103791789B (en) * | 2014-01-13 | 2015-06-03 | 河海大学 | Blasting construction method based on certain angle formed between boreholes and joints |
| CN104314574A (en) * | 2014-10-13 | 2015-01-28 | 福州市规划设计研究院 | Hard rock tunnel non-blasting digging blocking method and construction method |
| CN109026005A (en) * | 2018-09-07 | 2018-12-18 | 陕西华源矿业有限责任公司 | A kind of comprehensive mechanization falls mine stripping method |
| CN109026005B (en) * | 2018-09-07 | 2019-12-17 | 陕西华源矿业有限责任公司 | Comprehensive mechanized ore-breaking layered caving mining method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103527200B (en) | Bottom-column-free sectional Rhombic room afterwards filling mining method | |
| CN102619513B (en) | Room and pillar type medium-length hole filling mining method using bottom ore withdrawal structures simultaneously arranged in original rock | |
| CN102493806B (en) | Mechanized continuous mining method for wall-type gentle-inclined thin ore body | |
| CN103437769B (en) | Combination is reproduced structure medium-length hole ore blast and is worked in coordination with cable bolting afterwards filling mining method | |
| CN103967494B (en) | A kind of shallow-hole shrinkage afterwards filling mining methods | |
| CN102168579A (en) | Rib-pillar-free continuous sublevel filling method for mining preparation in medium-thickness slope crushed ore body vein | |
| CN103790588B (en) | A kind of gently inclined orebody is from slipping mining methods | |
| CN100554642C (en) | A kind of method of long-wall integrated-extraction reclaiming room-type coal column mining | |
| CN104481543B (en) | Stage shrink caved stopes | |
| CN102953732A (en) | Room-and-pillar major-diameter longhole inverted-step-like segmented lateral caving subsequent filling mining method | |
| CN106223958A (en) | The slant middle thick orebody subregion rock drilling stage ore deposit afterwards filling that falls works in coordination with mining codes | |
| CN102587914A (en) | Strip-type Wongawilli mining method of coal buried under building | |
| CN104632220A (en) | Mining method with adjustable and controllable structure size of gentle dip medium-thickness ore body strip column reconstructed stope | |
| CN1982649A (en) | Mining method | |
| CN107893658B (en) | Big thick ore body stage open stope afterwards filling mining methods in pole under strong ground pressure ring border | |
| CN105041314A (en) | Method for united mining of deep subsequent stoping chamber and layered stoping jamb | |
| CN102953733A (en) | Central outside-vein house pillar type combined crosscut two-end inside-vein continuous segment filling mining method | |
| CN105909247A (en) | Non-pillar sublevel mining cemented filling mining method | |
| CN106089205A (en) | A kind of room-and-pillar method filling mining method being applicable to very thin ore body under water body | |
| CN103104259A (en) | Inclination fragmentation ore body segment top board reconstruction middle-deep hole ore break down filling mining method | |
| CN102720500A (en) | Mechanized underground mining method for sharply inclined thin ore body | |
| CN103075156A (en) | Chessboard chamber pre-protection top upward middle-length hole ore-breaking segmented filling mining method | |
| CN106499396B (en) | Medium-thickness slowly-inclined waste rock-containing interlayer ore body room-column mining method | |
| CN105464700A (en) | Method for determining length of filling segment of fully mechanized mining and filling mixed mining working face | |
| CN101725350A (en) | Footwall vein rock drilling vein-passing access road ore removal stope caving method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| C06 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| C10 | Entry into substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130109 |
|
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) |