预应力膨胀支柱支护的进路式采场跨度扩大技术

doi:10.12068/j.issn.1005-3026.2023.11.013

东北大学学报（自然科学版） ›› 2023, Vol. 44 ›› Issue (11): 1604-1611.DOI: 10.12068/j.issn.1005-3026.2023.11.013

预应力膨胀支柱支护的进路式采场跨度扩大技术

李坤蒙^1,2,3，于鹏飞^1,2,3，姜凯元^1,2,3，李元辉^1,2,3

(1. 东北大学资源与土木工程学院，辽宁沈阳110819； 2. 东北大学深部金属矿山安全开采教育部重点实验室，辽宁沈阳110819；3. 东北大学深部工程与智能技术研究院，辽宁沈阳110819)

发布日期:2023-12-05
通讯作者: 李坤蒙
作者简介:李坤蒙(1990-)，男，陕西西安人，东北大学副教授；李元辉(1968-)，男，辽宁营口人，东北大学教授，博士生导师.
基金资助:
国家重点研发计划项目(2022YFC2903804)；国家自然科学基金资助项目(52374117，52004054，52274115).

Stope Span Enlargement Technology with the Drifted Method Supported by the Prestressed Expandable Pillar

LI Kun-meng^1,2,3， YU Peng-fei^1,2,3， JIANG Kai-yuan^1,2,3， LI Yuan-hui^1,2,3

1. School of Resources & Civil Engineering， Northeastern University， Shenyang 110819， China; 2. Key Laboratory of Ministry of Education on Safe Mining of Deep Metal Mines， Northeastern University， Shenyang 110819， China; 3. Institute of Deep Engineering and Intelligent， Northeastern University， Shenyang 110819， China.

Published:2023-12-05
Contact: YU Peng-fei
About author:-
Supported by:
-

摘要/Abstract

摘要： 为提高矿石产能，研发上向进路充填采矿法采场跨度扩大技术.通过数值模拟可知，相比于原岩矿柱，膨胀支柱支护条件下采场顶板垂直变形增加10mm，塑性区体积增加15.8m³.而相比于无支护，膨胀支柱支护可限制采场顶板最大垂直位移13mm和减少塑性区体积160.1m³.开展现场工业性试验，监测膨胀支柱承载力与采场顶板垂直变形.采场顶板变形和膨胀支柱承载力随间柱回采不断增大，支柱的最大承载力不超过655.6kN，采场顶板最大下沉量不超过10mm.从技术经济效益分析，试验采场利润约达26.7万元，采场跨度从3m扩大至9m，矿石回采率提高30%.

关键词: 膨胀支柱；进路充填采矿法；采场跨度；顶板变形；支柱承载

Abstract: In order to improve the production capacity of ore， the stope span enlargement technology of upward drift-and-fill mining method is developed. Numerical simulations reveal that， compared with the natural pillar， the use of expandable pillar support results in a 10mm increase in vertical deformation of roof and a 15.8m³ expansion in the volume of the plastic zone. Compared with no support， the expandable pillar support effectively limits the maximum vertical displacement of roof to 13mm and reduces the volume of plastic zone by 160.1m³. A field industrial test is carried out to monitor the bearing load of prestressed expandable pillars and the vertical deformation of stope roof. The deformation of roof and the bearing performance of expandable pillar increase with the recovery of rib pillar， the maximum bearing load on prestressed expandable pillars does not exceed 655.6kN， and the maximum deformation of the stope roof is below 10 mm. From a technical and economic standpoint， the profit of test stope is 267000 yuan， the stope span enlarges from 3 to 9m， and the ore recovery rate improves by 30%.

Key words: expandable pillar; drift-and-fill mining method; stope span; deformation of roof; pillars bearing

中图分类号:

TD355

李坤蒙，于鹏飞，姜凯元，李元辉. 预应力膨胀支柱支护的进路式采场跨度扩大技术[J]. 东北大学学报（自然科学版）, 2023, 44(11): 1604-1611.

LI Kun-meng， YU Peng-fei， JIANG Kai-yuan， LI Yuan-hui. Stope Span Enlargement Technology with the Drifted Method Supported by the Prestressed Expandable Pillar[J]. Journal of Northeastern University(Natural Science), 2023, 44(11): 1604-1611.

参考文献

[1]卢栋.上向分条进路充填采矿法在望儿山金矿的应用［J］.金属矿山，2005(1):26-28.(Lu Dong.Application of upward in-strips drift cut-fill method in Wangershan Gold Mine［J］.Metal Mine，2005(1):26-28.)
[2]张国胜，张雄天.全尾砂胶结充填材料强度影响因素分析及配比预测研究［J］.金属矿山，2021(12):112-117.(Zhang Guo-sheng，Zhang Xiong-tian.The study on strength influence factors and prediction of cemented tailings filling materials［J］.Metal Mine，2021(12):112-117.)
[3]Lang B D A.Span design for entry type excavations［D］.Vancouver:University of British Columbia，1994.
[4]William G M.Pillar design in hard brittle rocks［D］.Sudbury，Ontario:Laurentian University，2000.
[5]Hoek E，Kaiser P K，Bawden W F.Support of underground excavations in hard rock［M］.Rotterdam:A A Balkema Publishers，1995.
[6]于常先，邱云胜，王禄海.机械化盘区上向高分层宽进路充填采矿法在三山岛金矿的研究与应用［J］.中国矿业，2012，21(sup1):310-313.(Yu Chang-xian，Qiu Yun-sheng，Wang Lu-hai.Mechanization plate area to the high layer wide into road filling mining law in the application of Sanshandao Gold Mine［J］.China Mining Magazine，2012，21(sup1):310-313.)
[7]Cai M F，Brown E T.Challenges in the mining and utilization of deep mineral resources［J］.Engineering，2017，3(4):432-433.
[8]Marlow P，Mikula P.Shotcrete ribs and cemented rock fill ground control methods for stopping in weak squeezing rock at Wattle Dam Gold Mine［C］// Proceedings of the Seventh International Symposium on Ground Support in Mining and Underground Construction.Perth，2013:133-147.
[9]龚鹏.深部大采高矸石充填综采沿空留巷围岩变形机理及应用［D］.徐州:中国矿业大学，2018.(Gong Peng.Surrounding rock deformation mechanism and application for gob-side entry retaining in deep and large height coal seam with fully mechanized gangue backfilling mining［D］.Xuzhou:China University of Mining and Technology，2018.)
[10]Vergne J.Hard rock miner’s handbook［M］.Tempe:McIntosh Engineering，2000.
[11]Barczak T M.An overview of standing roof support practices and developments in the United States［C］// Proceedings of the Third South African Rock Engineering Symposium.Johannesburg，2005:301-334.
[12]Mark C，Barczak T M.Fundamentals of coal mine roof support［C］// Proceedings of the New Technology for Coal Mine Roof Support.4676 Columbia Parkway.Cincinnati，OH:National Institute for Occupational Safety and Health，2000:23-42.
[13]Babczak T M，Tadolini S C.Standing support alternatives in western United States longwalls［J］.Mining Engineering，2006，58(2):49-55.
[14]Batchler T.Analysis of the design and performance characteristics of pumpable roof support［J］.International Journal of Mining Science and Technology，2017，27(1):91-99.
[15]Barrientos G，Parker J.Use of the pressure arch in mine design at White Pine［J］.International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts，1974，11(10):203.
[16]Mark C，Listak J，Bieniawski Z.Yielding coal pillars-field measurements and analysis of design methods［C］// The 29th US Symposium on Rock Mechanics(USRMS).Publ Rotterdam:A A Balkema，1988:261-270.
[17]Li Y H，Li K M，Feng X T，et al.Development and evaluation of artificial expandable pillars for hard rock mining［J］.International Journal of Rock Mechanics and Mining Sciences，2018，110(8):68-75.
[18]李坤蒙，李元辉，王者超，等.硬岩采场新型预应力膨胀支柱的研发及应用［J］.东北大学学报(自然科学版)，2021，42(2):213-219.(Li Kun-meng，Li Yuan-hui，Wang Zhe-chao，et al.Development and application of a new pre-stressed expandable pillar in hard rock stope［J］.Journal of Northeastern University(Natural Science)，2021，42(2):213-219.)
[19]Barczak T M，Tadolini S C，McKelvey P.Hydraulic prestressing units:an innovation in roof support technology［C］// Proceedings of 23rd International Conference on Ground Control in Mining.Morgantown，West Virginia，2009:286-294.
[20]Daehnke A，Van Z M，Roberts M K C.Review and application of stope support design criteria［J/OL］.Journal of the Southern African Institute of Mining and Metallurgy，2001，101:135-164.(2001-05-01)［2022-05-20］.https://journals.co.za/doi/pdf/10.10520/AJA0038223X_2789.
[21]李坤蒙.硬岩采场人工膨胀矿柱承载机制及应用研究［D］.沈阳:东北大学，2019.(Li Kun-meng.Research on load bearing mechanism and application of artificial expandable pillars in hard rock stope［D］.Shenyang:Northeastern University，2019.)
[22]Hoek E，Brown E T.The Hoek-Brown failure criterion:a 1988 update［C］// Proceedings of the 15th Canadian Rock Mechanics Symposium.Toronto，1988:31-38.
[23]Brown E T，Hoek E.Trends in relationships between measured in-situ stresses and depth［J］.International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts，1978，15(4):211-215.

预应力膨胀支柱支护的进路式采场跨度扩大技术

Stope Span Enlargement Technology with the Drifted Method Supported by the Prestressed Expandable Pillar

RichHTML

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 2

编辑推荐

Metrics

本文评价

[1]	马园园，谢里阳，林文强. 液压支架随机载荷历程及MonteCarlo法的应用[J]. 东北大学学报:自然科学版, 2014, 35(1): 93-96.
[2]	李坤蒙，李元辉，王者超，熊志朋. 硬岩采场新型预应力膨胀支柱的研发及应用[J]. 东北大学学报（自然科学版）, 2021, 42(2): 213-219.