CN103590832A - Pillar pre-isolation sublevel stick-filling mining method and ore body therefor - Google Patents

Pillar pre-isolation sublevel stick-filling mining method and ore body therefor Download PDF

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Publication number
CN103590832A
CN103590832A CN201310635332.2A CN201310635332A CN103590832A CN 103590832 A CN103590832 A CN 103590832A CN 201310635332 A CN201310635332 A CN 201310635332A CN 103590832 A CN103590832 A CN 103590832A
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China
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stick
ore
filling
route
segmentation
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CN201310635332.2A
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Chinese (zh)
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CN103590832B (en
Inventor
张玉华
潘尔斌
吕建全
王进佺
侯俊
谷元勋
李典兵
曲炳强
栾东朋
鲍军涛
刘志祥
彭康
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山东盛大矿业有限公司
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Abstract

The invention discloses a pillar pre-isolation sublevel stick-filling mining method and an ore body therefor. The pillar pre-isolation sublevel stick-filling mining method comprises the following steps of 1, dividing the whole mining area into multiple zones, dividing each one of the zones into a step-I stick chamber, a step-III stick pillar, a step-II stick chamber and a step-IV stick pillar orderly arranged along an ore growth direction, and 2, orderly carrying out stoping on the step-I stick chamber, the step-II stick chamber, the step-III stick pillar and the step-IV stick pillar, wherein the same-step stick stopes in all the zones are stoped simultaneously. The pillar pre-isolation sublevel stick-filling mining method has the advantages of low mining cost and high production efficiency.

Description

Ore pillar is isolated in advance the segmentation stick method of mining by the way of filling and is applicable to the ore body of these mining codes
Technical field
The present invention relates to a kind of mining methods and ore body, relate to specifically a kind of be applicable to exploit ore body built on the sand, earth's surface do not allow the gentle dip of subsiding, the ore pillar of metal deposit with steep occurrence and large thickness body to isolate in advance the segmentation stick method of mining by the way of filling.
Background technology
The exploitation utmost point is built on the sand during thick large low-grade ore body, the general Caving Method with Large Space that adopts is exploited, yet Caving Method with Large Space exploitation can cause surface subsidence to affect sustainable development, while particularly exploiting under farmland, earth's surface does not allow to subside, therefore need to adopt method of mining by the way of filling exploitation, method of mining by the way of filling cost is high, production efficiency is low.
Summary of the invention
The object of this invention is to provide a kind of ore pillar and isolate in advance the segmentation stick method of mining by the way of filling and ore body, this mining methods mining cost is low, production efficiency is high.
To achieve these goals, technical solution of the present invention is: a kind of ore pillar is isolated the segmentation stick method of mining by the way of filling in advance, comprise the following steps: 1) whole exploiting field is divided into several regions, each region is divided into I step stick mineral building, III step stick ore pillar, II step stick mineral building and the IV step stick ore pillar being arranged in order along orebody trend, according to the step back production successively of I step stick mineral building, II step stick mineral building, III step stick ore pillar, IV step stick ore pillar, and the same steps stick stope in each region is constructed simultaneously.
Ore pillar of the present invention is isolated the segmentation stick method of mining by the way of filling in advance, wherein, in described I step stick mineral building exploitation process, I is walked to stick mineral building to be divided into, lower two segmentations, the filling route of the lower segmentation of first construction, ore removal route, filling route and ore removal route all spray anchor net combined supporting, and in filling route, lay filling pipeline, then from ore removal route one end construction slot raise, the slot raise of take again carries out explosion as layout medium-length hole big gun hole, the scope of freedom, the ore deposit height that falls is a segmentation, then adopt scraper ore removal, after ore removal finishes, at ore removal route construction fire dam, utilize filling pipeline to carry out classified tailings consolidated fill to goaf, after the classified tailings cemented fill of lower segmentation solidifies, carry out the back production of upper segmentation, during upper substoping, the filling route of the first upper segmentation of construction, the filling route of lower segmentation is as the ore removal route of upper segmentation, then start the actual mining identical with lower division step.
Ore pillar of the present invention is isolated the segmentation stick method of mining by the way of filling in advance, wherein, the back production of II step stick mineral building is carried out carrying out after classified tailings consolidated fill completes in the goaf of the upper segmentation of described I step stick mineral building, and the exploitation process of described II step stick mineral building is identical with the exploitation process of I step stick mineral building.
Ore pillar of the present invention is isolated the segmentation stick method of mining by the way of filling in advance, wherein, described I, the classified tailings cemented fill of II step stick mineral building solidifies and intensity reaches after requirement, carry out the back production of described III step stick ore pillar, during back production, III is walked to stick ore pillar to be divided into, lower two segmentations, first carry out the actual mining of lower segmentation, filling route and the ore removal route of the lower segmentation of construction, and the filling route to III step stick ore pillar, ore removal route is compiled bolting with wire mesh, in the filling route of III step stick ore pillar, lay filling pipeline, in the ore removal route end of III step stick ore pillar and inboard interval several III step slot raises of constructing successively, each III step slot raise all runs through filling route and the ore removal route of III step stick ore pillar, then each III step slot raise explosion is become to concrete post large open well, after each concrete post large open well end opening is constructed respectively fire dam to filling high strength cemented fill in concrete post large open well, form several concrete posts, ore body between every two concrete posts is a back production unit, in a back production unit, the III of take step slot raise carries out explosion as layout medium-length hole big gun hole, the scope of freedom, the ore deposit height that falls is a segmentation, then adopt scraper ore removal, after ore removal, a back production unit back production finishes, utilize filling pipeline to carry out disposable classified tailings filling to this back production filling unit, classified tailings obturation bottom is provided with filter pipe, after tailings filling body drainage precipitation, to sinking, part is carried out classified tailings consolidated fill, form top dressing on concrete, next carry out the back production filling operation of next back production unit, until the back production filling operation of lower segmentation finishes, lower substoping finish and the concrete of lower segmentation on top dressing intensity reach after requirement, carry out the back production of upper segmentation, during upper substoping, the filling route of the upper segmentation of the III of first constructing step stick ore pillar, under III step stick ore pillar, the filling route of segmentation, as the ore removal route of upper segmentation, then carries out and the identical actual mining of lower segmentation.
Ore pillar of the present invention is isolated the segmentation stick method of mining by the way of filling in advance, wherein, after the back production of described III step stick ore pillar completes, adopts the step back production IV step stick ore pillar identical with III step stick ore pillar, and described each fork lift truck is remote control fork lift truck.
A kind of ore body that adopts above-mentioned mining methods, described ore body is divided into several regions, each region is divided into the I step stick mineral building being arranged in order along orebody trend, III step stick ore pillar, II step stick mineral building and IV step stick ore pillar, described I step stick mineral building is identical with II step stick mineral building structure, wherein said I step stick mineral building is divided into, lower two segmentations, lower segmentation is provided with filling route, ore removal route, filling route, ore removal route is equipped with spray anchor net combined supporting, in filling route, lay filling pipeline, ore removal route one end is provided with slot raise, the other end is provided with fire dam, upper segmentation is provided with filling route, the filling route of upper segmentation sprays anchor net combined supporting, and lay filling pipeline.
Ore body of the present invention, wherein, described III walks stick ore pillar, IV step stick ore pillar structure is identical, wherein, described III step stick ore pillar is divided into upper and lower two segmentations, and the lower segmentation of III step stick ore pillar is provided with filling route and ore removal route, and filling route and the ore removal route of III step stick ore pillar are equipped with volume bolting with wire mesh, in the filling route of III step stick ore pillar, lay filling pipeline, in ore removal route end and the inboard of III step stick ore pillar, several concrete posts are set interval successively.
Adopt after such scheme, because ore pillar of the present invention is isolated in advance the segmentation stick method of mining by the way of filling whole exploiting field is divided into several regions, each region is all divided into four step sticks that are arranged in order along orebody trend, four step stick back production successively, and the same steps stick in each region is constructed simultaneously, therefore stope production efficiency improves greatly, cost.
In addition, adopt medium-length hole big gun hole to carry out explosion in work progress, the ore deposit amount of stope avalanche is large, adds that ore removal passage is many, further improves production efficiency.
Filling route, ore removal route all carry out supporting, and filling immediately after back production is complete is until whole mineral building back production gestalt becomes high strength obturation, on the ore removal route of III step stick ore pillar, IV step stick ore pillar, concrete intercolumniation is set every tailings filling body, makes operation process safer.
In orebody mining process, do not stay panel barrier and some post, thereby avoided because stope underground pressure management need to design the ample resources loss that a large amount of ore pillars cause, so Ore loss and dilution rates is low.Adopt tailings and Cemented Filling filling, stacking problem, the reduction filling cost of exploitation waste material have not only been solved, also can prevent the safety hazard that down-hole large-area pressure activity brings, stop earth's surface because of distortion and sinking that exploitation causes, realize mine exploration without waster.
Accompanying drawing explanation
Fig. 1 is that ore pillar of the present invention is isolated the front view that segmentation stick method of mining by the way of filling chats body divides in advance;
Fig. 2 is that the C-C of Fig. 1 is to sectional view;
Fig. 3 is the structural representation that ore pillar of the present invention is isolated I step stick mineral building exploitation process in the segmentation stick method of mining by the way of filling in advance;
Fig. 4 is that the B-B of Fig. 1 is to sectional view.
The specific embodiment
Take the mining methods in grand mining industry Co., Ltd's Dazhuohe iron ore district, Shandong as example illustrates ore pillar of the present invention isolate in advance the segmentation stick method of mining by the way of filling:
Grand mining industry Co., Ltd's Dazhuohe iron ore district, Shandong is positioned at the ground, boundary of western Yue1km,Shu Yantai City, great Zhuo He village, Tu Shan town, Laizhou City and Qingdao City.The long 2100m of orebody trend, 0 °~20 °, inclination angle, varied in thickness is large, maximum ga(u)ge 77.74m, minimum thickness 2.98m, general thickness 10~30m.Dazhuohe iron ore is possessed iron ore deposit reserves 4493.90 ten thousand t, and average grade TFe28.97% adopts ore pillar to isolate in advance the exploitation of the segmentation stick method of mining by the way of filling, and the specific embodiment is as follows:
(1) whole exploiting field is divided into a plurality of regions, as shown in Fig. 1,4, each region is divided into I step stick mineral building 11, III step stick ore pillar 13, II step stick mineral building 12 and the IV step stick ore pillar 14 being arranged in order along orebody trend;
(2) each segmentation level haulage gallery 22 of vertical orebody trend of constructing in the lower wall country rock 21 of ore body one side, and the drop shaft 23 in the panel of constructing in level haulage gallery 22, by the ramp slice drift 24 of constructing;
(3) back production I step stick mineral building 11, I is walked to stick mineral building 11 to be divided into, lower two segmentations, each height of lift is 12.5m, as shown in Figure 3, the filling route 112 of 11 times segmentations of the I of first constructing step stick mineral building, ore removal route, above-mentioned two route specifications sections are 3 * 4m(wide * height), filling route 111 first carries out the spray anchor net combined supporting of high gauge, then lay filling pipeline, ore removal route carries out junior spray anchor net combined supporting, guaranteed ore removal operation, then the slot raise that is 1.5 * 1.5m from ore removal route away from one end construction specifications section of level haulage gallery 22, the slot raise of take again carries out explosion as layout medium-length hole big gun hole, the scope of freedom, the ore deposit height that falls is a segmentation, adopt remote-controlled scraper ore removal, after ore removal finishes, at ore removal route construction fire dam, utilize filling pipeline to carry out classified tailings consolidated fill to goaf, after the classified tailings cemented fill of lower segmentation solidifies, carry out the back production of upper segmentation, during upper substoping, the filling route 111 of the first upper segmentation of construction, the filling route 112 of lower segmentation is as the ore removal route of upper segmentation, the filling route 111 of upper segmentation carries out the spray anchor net combined supporting of high gauge, and lay filling pipeline, then start the actual mining identical with lower division step,
(4) goaf of the upper segmentation of I step stick mineral building 11 carries out after classified tailings consolidated fill completes, adopting the step back production II identical with above-mentioned steps (3) to walk stick mineral building 12;
(5) I, II step stick mineral building 11, 12 classified tailings cemented fill solidifies and intensity reaches after requirement, carry out the back production of III step stick ore pillar 13, as shown in Figure 4, III is walked to stick ore pillar 13 to be divided into, lower two segmentations, each height of lift is 12.5m, first carry out the actual mining of 13 times segmentations of III step stick ore pillar, filling route 132 and the ore removal route of the lower segmentation of construction, and filling route 132 is carried out to the volume bolting with wire mesh of higher level, ore removal route carries out the volume bolting with wire mesh of lower grade, in filling route, lay filling pipeline, in ore removal route end and every the position of 20~30m, a plurality of slot raises of constructing, each slot raise runs through filling route and ore removal route, then each slot raise explosion being become to specifications section is the concrete post large open well of 4 * 4m, rear to filling high strength cemented fill in concrete post large open well at each concrete post large open well end opening fire dam 134 of constructing respectively, form a plurality of concrete posts 135, ore body between every two concrete posts 135 is a back production unit, in a back production unit, the slot raise of take carries out explosion as layout medium-length hole big gun hole, the scope of freedom, the ore deposit height that falls is a segmentation, then adopt remote-controlled scraper ore removal, after ore removal, a back production unit back production finishes, utilize filling pipeline to carry out disposable classified tailings filling to this back production filling unit, classified tailings obturation bottom is provided with filter pipe 137, after tailings filling body drainage precipitation, to sinking, part is carried out classified tailings consolidated fill, top dressing 136 on the concrete that formation thickness is approximately 0.5 meter, next carry out the back production filling operation of next back production unit, until the back production filling operation of lower segmentation finishes, lower substoping finish and the concrete of lower segmentation on top dressing intensity reach after requirement, carry out the back production of upper segmentation, during upper substoping, the filling route 131 of the first upper segmentation of construction, the filling route 132 of lower segmentation, as the ore removal route of upper segmentation, then carries out and the identical actual mining of lower segmentation,
(6), after the back production of III step stick ore pillar 13 completes, adopt the step back production IV step stick ore pillar 14 identical with above-mentioned steps (5).
In above-mentioned exploitation process, the same steps stick in each region is constructed simultaneously.
Be applicable to the ore body of above-mentioned mining codes, ore body is divided into a plurality of regions, as Fig. 1, shown in 2, each region is divided into the I step stick mineral building 11 being arranged in order along orebody trend, III step stick ore pillar 13, II step stick mineral building 12 and IV step stick ore pillar 14, I step stick mineral building 11 is identical with II step stick mineral building 12 structures, wherein I step stick mineral building 11 is divided into, lower two segmentations, as shown in Figure 3, lower segmentation is provided with filling route 112, ore removal route, filling route 112, ore removal route is equipped with spray anchor net combined supporting, the interior laying filling of filling route 112 pipeline, ore removal route one end is provided with slot raise, the other end is provided with fire dam, upper segmentation is provided with filling route 111, the filling route 111 of upper segmentation sprays anchor net combined supporting, and lay filling pipeline, III walks stick ore pillar 13, IV step stick ore pillar 14 structures are identical, wherein, III step stick ore pillar 13 is divided into upper and lower two segmentations, as shown in Figure 4, the lower segmentation of III step stick ore pillar is provided with filling route 132 and ore removal route, filling route 132 and the ore removal route of III step stick ore pillar are equipped with volume bolting with wire mesh, in the filling route of III step stick ore pillar, lay filling pipeline, in ore removal route end and the inboard of III step stick ore pillar, several concrete posts 135 are set interval successively.
The above embodiment is described the preferred embodiment of the present invention; not scope of the present invention is limited; design under the prerequisite of spirit not departing from the present invention; various distortion and improvement that the common engineers and technicians in this area make technical scheme of the present invention, all should fall in the definite protection domain of claims of the present invention.

Claims (7)

1. an ore pillar is isolated the segmentation stick method of mining by the way of filling in advance, it is characterized in that the method comprises the following steps: 1) whole exploiting field is divided into several regions, each region is divided into I step stick mineral building (11), III step stick ore pillar (13), II step stick mineral building (12) and the IV step stick ore pillar (14) being arranged in order along orebody trend, according to the step back production successively of I step stick mineral building (11), II step stick mineral building (12), III step stick ore pillar (13), IV step stick ore pillar (14), and the same steps stick stope in each region is constructed simultaneously.
2. ore pillar as claimed in claim 1 is isolated the segmentation stick method of mining by the way of filling in advance, it is characterized in that: in described I step stick mineral building (11) exploitation process, I is walked to stick mineral building (11) to be divided into, lower two segmentations, the filling route (112) of the lower segmentation of first construction, ore removal route, filling route (111) and ore removal route all spray anchor net combined supporting, and in filling route, lay filling pipeline, then from ore removal route one end construction slot raise, the slot raise of take again carries out explosion as layout medium-length hole big gun hole, the scope of freedom, the ore deposit height that falls is a segmentation, then adopt scraper ore removal, after ore removal finishes, at ore removal route construction fire dam, utilize filling pipeline to carry out classified tailings consolidated fill to goaf, after the classified tailings cemented fill of lower segmentation solidifies, carry out the back production of upper segmentation, during upper substoping, the filling route (111) of the first upper segmentation of construction, the filling route (112) of lower segmentation is as the ore removal route of upper segmentation, then start the actual mining identical with lower division step.
3. ore pillar as claimed in claim 2 is isolated the segmentation stick method of mining by the way of filling in advance, it is characterized in that: the back production of II step stick mineral building (12) is carried out carrying out after classified tailings consolidated fill completes in the goaf of the upper segmentation of described I step stick mineral building (11), the exploitation process of described II step stick mineral building (12) is identical with the exploitation process of I step stick mineral building (11).
4. ore pillar as claimed in claim 3 is isolated the segmentation stick method of mining by the way of filling in advance, it is characterized in that: described I, II step stick mineral building (11, 12) classified tailings cemented fill solidifies and intensity reaches after requirement, carry out the back production of described III step stick ore pillar (13), during back production, III is walked to stick ore pillar (13) to be divided into, lower two segmentations, first carry out the actual mining of lower segmentation, filling route (132) and the ore removal route of the lower segmentation of construction, and the filling route (132) to III step stick ore pillar, ore removal route is compiled bolting with wire mesh, in the filling route of III step stick ore pillar, lay filling pipeline, in the ore removal route end of III step stick ore pillar and inboard interval several III step slot raises of constructing successively, each III step slot raise all runs through filling route and the ore removal route of III step stick ore pillar, then each III step slot raise explosion is become to concrete post large open well, filling high strength cemented fill in each concrete post large open well end opening is constructed respectively the backward concrete post of fire dam (134) large open well, form several concrete posts (135), ore body between every two concrete posts (135) is a back production unit, in a back production unit, the III of take step slot raise carries out explosion as layout medium-length hole big gun hole, the scope of freedom, the ore deposit height that falls is a segmentation, then adopt scraper ore removal, after ore removal, a back production unit back production finishes, utilize filling pipeline to carry out disposable classified tailings filling to this back production filling unit, classified tailings obturation bottom is provided with filter pipe (137), after tailings filling body drainage precipitation, to sinking, part is carried out classified tailings consolidated fill, form top dressing (136) on concrete, next carry out the back production filling operation of next back production unit, until the back production filling operation of lower segmentation finishes, lower substoping finish and the concrete of lower segmentation on top dressing intensity reach after requirement, carry out the back production of upper segmentation, during upper substoping, the filling route (131) of the upper segmentation of the III of first constructing step stick ore pillar (13), under III step stick ore pillar, the filling route (132) of segmentation, as the ore removal route of upper segmentation, then carries out and the identical actual mining of lower segmentation.
5. ore pillar as claimed in claim 4 is isolated the segmentation stick method of mining by the way of filling in advance, it is characterized in that: after the back production of described III step stick ore pillar (13) completes, adopt the step back production IV step stick ore pillar (14) identical with III step stick ore pillar (13), described each fork lift truck is remote control fork lift truck.
6. be applicable to the ore body of the arbitrary described mining codes of the claims 1-5, it is characterized in that: described ore body is divided into several regions, each region is divided into the I step stick mineral building (11) being arranged in order along orebody trend, III step stick ore pillar (13), II step stick mineral building (12) and IV step stick ore pillar (14), described I step stick mineral building (11) is identical with II step stick mineral building (12) structure, wherein said I step stick mineral building (11) is divided into, lower two segmentations, lower segmentation is provided with filling route (112), ore removal route, filling route (112), ore removal route is equipped with spray anchor net combined supporting, in filling route (112), lay filling pipeline, ore removal route one end is provided with slot raise, the other end is provided with fire dam, upper segmentation is provided with filling route (111), the filling route (111) of upper segmentation sprays anchor net combined supporting, and lay filling pipeline.
7. ore body as claimed in claim 6, it is characterized in that: described III step stick ore pillar (13), IV step stick ore pillar (14) structure is identical, wherein, described III step stick ore pillar (13) is divided into, lower two segmentations, the lower segmentation of III step stick ore pillar is provided with filling route (132) and ore removal route, filling route (132) and the ore removal route of III step stick ore pillar are equipped with volume bolting with wire mesh, in the filling route of III step stick ore pillar, lay filling pipeline, ore removal route end and inboard at III step stick ore pillar arrange several concrete posts (135) in interval successively.
CN201310635332.2A 2013-11-27 2013-11-27 Ore pillar is isolated in advance the segmentation stick method of mining by the way of filling and is applicable to the ore body of these mining codes CN103590832B (en)

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CN104018836A (en) * 2014-06-25 2014-09-03 中南大学 Divided mining method for inclined medium-thick ore body with unstable false roof
CN105041314A (en) * 2015-06-13 2015-11-11 招金矿业股份有限公司大尹格庄金矿 Method for united mining of deep subsequent stoping chamber and layered stoping jamb
CN107829738A (en) * 2017-11-27 2018-03-23 西北矿冶研究院 A kind of modified room and pillar stoping
CN109458179A (en) * 2019-01-04 2019-03-12 天地科技股份有限公司上海分公司 Down-hole mechanical continuous exploitation method
CN109736800A (en) * 2019-01-04 2019-05-10 天地科技股份有限公司上海分公司 Down-hole mechanicalization continuously falls mine beneficiation method

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* Cited by examiner, † Cited by third party
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CN104018836A (en) * 2014-06-25 2014-09-03 中南大学 Divided mining method for inclined medium-thick ore body with unstable false roof
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CN105041314A (en) * 2015-06-13 2015-11-11 招金矿业股份有限公司大尹格庄金矿 Method for united mining of deep subsequent stoping chamber and layered stoping jamb
CN107829738A (en) * 2017-11-27 2018-03-23 西北矿冶研究院 A kind of modified room and pillar stoping
CN109458179A (en) * 2019-01-04 2019-03-12 天地科技股份有限公司上海分公司 Down-hole mechanical continuous exploitation method
CN109736800A (en) * 2019-01-04 2019-05-10 天地科技股份有限公司上海分公司 Down-hole mechanicalization continuously falls mine beneficiation method
CN109458179B (en) * 2019-01-04 2020-05-08 天地科技股份有限公司上海分公司 Underground mechanized continuous mining method
CN109736800B (en) * 2019-01-04 2020-05-08 天地科技股份有限公司上海分公司 Underground mechanized continuous ore-breaking ore-dressing method

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