Loading…

An innovative approach for gob‐side entry retaining in deep coal mines: A case study

Due to the complex geostress and mining conditions in the coal seam with depth of 800 m, stability of surrounding rock for gob‐side entry retaining is very difficult to achieve. In this paper, we firstly propose an innovative bolt‐grouting controlled roof‐cutting for gob‐side entry retaining (BCR‐GE...

Full description

Saved in:
Bibliographic Details
Published in:Energy science & engineering 2019-12, Vol.7 (6), p.2321-2335
Main Authors: Fan, Deyuan, Liu, Xuesheng, Tan, Yunliang, Yan, Lei, Song, Shilin, Ning, Jianguo
Format: Article
Language:English
Subjects:
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
cited_by cdi_FETCH-LOGICAL-c3931-dd6e242ac3af2c4bfe8d0a5e51fca1af3750cb222a1ac0f17bb5c370fa62547a3
cites cdi_FETCH-LOGICAL-c3931-dd6e242ac3af2c4bfe8d0a5e51fca1af3750cb222a1ac0f17bb5c370fa62547a3
container_end_page 2335
container_issue 6
container_start_page 2321
container_title Energy science & engineering
container_volume 7
creator Fan, Deyuan
Liu, Xuesheng
Tan, Yunliang
Yan, Lei
Song, Shilin
Ning, Jianguo
description Due to the complex geostress and mining conditions in the coal seam with depth of 800 m, stability of surrounding rock for gob‐side entry retaining is very difficult to achieve. In this paper, we firstly propose an innovative bolt‐grouting controlled roof‐cutting for gob‐side entry retaining (BCR‐GER) approach for deep coal mines. Secondly, a mechanical model of “surrounding rock‐supporting body” for BCR‐GER is constructed, which consists of coal wall, roadside props, and gangues in gob (the whole supporting body). Thirdly, the key parameters (ie, cutting height, cutting angle, grouting cable length, and row of roadside props) are designed. Finally, field practice was applied at the No. 31120 haulage roadway of the Suncun coal mine in China, and in situ investigations were conducted for verification. Field measurement results show that maximum convergences of roof‐to‐floor and side‐to‐side were 264 mm and 113 mm, respectively. What is more, the maximum support resistance of roadside props was reduced by approximately 58%. The deformation and failure of surrounding rock were effectively controlled, and the pressure on roadside props was greatly reduced. This research fully considers the bearing properties of gangues in gob, eliminates the secondary disasters caused by borehole blasting, and provides guidance and reference for deep surrounding rock control of the same or similar gob‐side entry. An innovative approach of BCR‐GER for deep coal mines is proposed. Three key techniques of the BCR‐GER approach are introduced. The mechanical model of “surrounding rock‐supporting body” for BCR‐GER is developed. Four key parameters of the BCR‐GER approach are designed. Field practice verifies the effect of the BCR‐GER approach.
doi_str_mv 10.1002/ese3.431
format article
fullrecord <record><control><sourceid>proquest_doaj_</sourceid><recordid>TN_cdi_doaj_primary_oai_doaj_org_article_bad1d3123cba4c839c31fbfbc08346f2</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><doaj_id>oai_doaj_org_article_bad1d3123cba4c839c31fbfbc08346f2</doaj_id><sourcerecordid>2327532538</sourcerecordid><originalsourceid>FETCH-LOGICAL-c3931-dd6e242ac3af2c4bfe8d0a5e51fca1af3750cb222a1ac0f17bb5c370fa62547a3</originalsourceid><addsrcrecordid>eNp1kc1KazEQxw-ioHgFHyHgxs3RJHPS07orUj-gcBd-bMMkmdSUelKTU6W7-wg-o09ieivixkWYzPCb_wzzr6pjwc8E5_KcMsFZA2KnOpBc8bo8tfvjv18d5TznnItGNCMuDqrHccdC18VX7MMrMVwuU0T7xHxMbBbNx7_3HBwx6vq0Zol6DF3oZqWFOaIlsxEX7Dl0lC_YmFnMxHK_cus_1Z7HRaajr3hYPVxN7i9v6unf69vL8bS2MAJROzcg2Ui0gF7axngaOo6KlPAWBXpoFbdGSlkSy71ojVEWWu5xIFXTIhxWt1tdF3Gulyk8Y1rriEH_L8Q005j6YBekDTrhQEiwBhs7hJEF4Y03lg-hGXhZtE62WuUELyvKvZ7HVerK-lqCbBVIBcNCnW4pm2LOifz3VMH1xgS9MUEXEwpab9G3sKD1r5ye3E1gw38ChyCIoA</addsrcrecordid><sourcetype>Open Website</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2327532538</pqid></control><display><type>article</type><title>An innovative approach for gob‐side entry retaining in deep coal mines: A case study</title><source>Wiley Online Library Open Access</source><source>Publicly Available Content (ProQuest)</source><creator>Fan, Deyuan ; Liu, Xuesheng ; Tan, Yunliang ; Yan, Lei ; Song, Shilin ; Ning, Jianguo</creator><creatorcontrib>Fan, Deyuan ; Liu, Xuesheng ; Tan, Yunliang ; Yan, Lei ; Song, Shilin ; Ning, Jianguo</creatorcontrib><description>Due to the complex geostress and mining conditions in the coal seam with depth of 800 m, stability of surrounding rock for gob‐side entry retaining is very difficult to achieve. In this paper, we firstly propose an innovative bolt‐grouting controlled roof‐cutting for gob‐side entry retaining (BCR‐GER) approach for deep coal mines. Secondly, a mechanical model of “surrounding rock‐supporting body” for BCR‐GER is constructed, which consists of coal wall, roadside props, and gangues in gob (the whole supporting body). Thirdly, the key parameters (ie, cutting height, cutting angle, grouting cable length, and row of roadside props) are designed. Finally, field practice was applied at the No. 31120 haulage roadway of the Suncun coal mine in China, and in situ investigations were conducted for verification. Field measurement results show that maximum convergences of roof‐to‐floor and side‐to‐side were 264 mm and 113 mm, respectively. What is more, the maximum support resistance of roadside props was reduced by approximately 58%. The deformation and failure of surrounding rock were effectively controlled, and the pressure on roadside props was greatly reduced. This research fully considers the bearing properties of gangues in gob, eliminates the secondary disasters caused by borehole blasting, and provides guidance and reference for deep surrounding rock control of the same or similar gob‐side entry. An innovative approach of BCR‐GER for deep coal mines is proposed. Three key techniques of the BCR‐GER approach are introduced. The mechanical model of “surrounding rock‐supporting body” for BCR‐GER is developed. Four key parameters of the BCR‐GER approach are designed. Field practice verifies the effect of the BCR‐GER approach.</description><identifier>ISSN: 2050-0505</identifier><identifier>EISSN: 2050-0505</identifier><identifier>DOI: 10.1002/ese3.431</identifier><language>eng</language><publisher>London: John Wiley &amp; Sons, Inc</publisher><subject>Air leakage ; BCR‐GER approach ; Blasting ; Boreholes ; Cables ; Case depth ; Coal mines ; Coal mining ; Cutting parameters ; deep‐mining condition ; Deformation ; Deformation effects ; Disasters ; Grouting ; Haul roads ; mechanical model ; parameters optimization ; Roadsides ; Rocks ; Roofing ; Roofs ; Stress concentration</subject><ispartof>Energy science &amp; engineering, 2019-12, Vol.7 (6), p.2321-2335</ispartof><rights>2019 The Authors. published by the Society of Chemical Industry and John Wiley &amp; Sons Ltd.</rights><rights>2019. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c3931-dd6e242ac3af2c4bfe8d0a5e51fca1af3750cb222a1ac0f17bb5c370fa62547a3</citedby><cites>FETCH-LOGICAL-c3931-dd6e242ac3af2c4bfe8d0a5e51fca1af3750cb222a1ac0f17bb5c370fa62547a3</cites><orcidid>0000-0001-9844-1960</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.proquest.com/docview/2327532538/fulltextPDF?pq-origsite=primo$$EPDF$$P50$$Gproquest$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.proquest.com/docview/2327532538?pq-origsite=primo$$EHTML$$P50$$Gproquest$$Hfree_for_read</linktohtml><link.rule.ids>314,776,780,11543,25733,27903,27904,36991,44569,46030,46454,74872</link.rule.ids></links><search><creatorcontrib>Fan, Deyuan</creatorcontrib><creatorcontrib>Liu, Xuesheng</creatorcontrib><creatorcontrib>Tan, Yunliang</creatorcontrib><creatorcontrib>Yan, Lei</creatorcontrib><creatorcontrib>Song, Shilin</creatorcontrib><creatorcontrib>Ning, Jianguo</creatorcontrib><title>An innovative approach for gob‐side entry retaining in deep coal mines: A case study</title><title>Energy science &amp; engineering</title><description>Due to the complex geostress and mining conditions in the coal seam with depth of 800 m, stability of surrounding rock for gob‐side entry retaining is very difficult to achieve. In this paper, we firstly propose an innovative bolt‐grouting controlled roof‐cutting for gob‐side entry retaining (BCR‐GER) approach for deep coal mines. Secondly, a mechanical model of “surrounding rock‐supporting body” for BCR‐GER is constructed, which consists of coal wall, roadside props, and gangues in gob (the whole supporting body). Thirdly, the key parameters (ie, cutting height, cutting angle, grouting cable length, and row of roadside props) are designed. Finally, field practice was applied at the No. 31120 haulage roadway of the Suncun coal mine in China, and in situ investigations were conducted for verification. Field measurement results show that maximum convergences of roof‐to‐floor and side‐to‐side were 264 mm and 113 mm, respectively. What is more, the maximum support resistance of roadside props was reduced by approximately 58%. The deformation and failure of surrounding rock were effectively controlled, and the pressure on roadside props was greatly reduced. This research fully considers the bearing properties of gangues in gob, eliminates the secondary disasters caused by borehole blasting, and provides guidance and reference for deep surrounding rock control of the same or similar gob‐side entry. An innovative approach of BCR‐GER for deep coal mines is proposed. Three key techniques of the BCR‐GER approach are introduced. The mechanical model of “surrounding rock‐supporting body” for BCR‐GER is developed. Four key parameters of the BCR‐GER approach are designed. Field practice verifies the effect of the BCR‐GER approach.</description><subject>Air leakage</subject><subject>BCR‐GER approach</subject><subject>Blasting</subject><subject>Boreholes</subject><subject>Cables</subject><subject>Case depth</subject><subject>Coal mines</subject><subject>Coal mining</subject><subject>Cutting parameters</subject><subject>deep‐mining condition</subject><subject>Deformation</subject><subject>Deformation effects</subject><subject>Disasters</subject><subject>Grouting</subject><subject>Haul roads</subject><subject>mechanical model</subject><subject>parameters optimization</subject><subject>Roadsides</subject><subject>Rocks</subject><subject>Roofing</subject><subject>Roofs</subject><subject>Stress concentration</subject><issn>2050-0505</issn><issn>2050-0505</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><sourceid>24P</sourceid><sourceid>PIMPY</sourceid><sourceid>DOA</sourceid><recordid>eNp1kc1KazEQxw-ioHgFHyHgxs3RJHPS07orUj-gcBd-bMMkmdSUelKTU6W7-wg-o09ieivixkWYzPCb_wzzr6pjwc8E5_KcMsFZA2KnOpBc8bo8tfvjv18d5TznnItGNCMuDqrHccdC18VX7MMrMVwuU0T7xHxMbBbNx7_3HBwx6vq0Zol6DF3oZqWFOaIlsxEX7Dl0lC_YmFnMxHK_cus_1Z7HRaajr3hYPVxN7i9v6unf69vL8bS2MAJROzcg2Ui0gF7axngaOo6KlPAWBXpoFbdGSlkSy71ojVEWWu5xIFXTIhxWt1tdF3Gulyk8Y1rriEH_L8Q005j6YBekDTrhQEiwBhs7hJEF4Y03lg-hGXhZtE62WuUELyvKvZ7HVerK-lqCbBVIBcNCnW4pm2LOifz3VMH1xgS9MUEXEwpab9G3sKD1r5ye3E1gw38ChyCIoA</recordid><startdate>201912</startdate><enddate>201912</enddate><creator>Fan, Deyuan</creator><creator>Liu, Xuesheng</creator><creator>Tan, Yunliang</creator><creator>Yan, Lei</creator><creator>Song, Shilin</creator><creator>Ning, Jianguo</creator><general>John Wiley &amp; Sons, Inc</general><general>Wiley</general><scope>24P</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7TB</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AEUYN</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>BHPHI</scope><scope>BKSAR</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>FR3</scope><scope>H8D</scope><scope>HCIFZ</scope><scope>KR7</scope><scope>L6V</scope><scope>L7M</scope><scope>M7S</scope><scope>PCBAR</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>PTHSS</scope><scope>DOA</scope><orcidid>https://orcid.org/0000-0001-9844-1960</orcidid></search><sort><creationdate>201912</creationdate><title>An innovative approach for gob‐side entry retaining in deep coal mines: A case study</title><author>Fan, Deyuan ; Liu, Xuesheng ; Tan, Yunliang ; Yan, Lei ; Song, Shilin ; Ning, Jianguo</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3931-dd6e242ac3af2c4bfe8d0a5e51fca1af3750cb222a1ac0f17bb5c370fa62547a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Air leakage</topic><topic>BCR‐GER approach</topic><topic>Blasting</topic><topic>Boreholes</topic><topic>Cables</topic><topic>Case depth</topic><topic>Coal mines</topic><topic>Coal mining</topic><topic>Cutting parameters</topic><topic>deep‐mining condition</topic><topic>Deformation</topic><topic>Deformation effects</topic><topic>Disasters</topic><topic>Grouting</topic><topic>Haul roads</topic><topic>mechanical model</topic><topic>parameters optimization</topic><topic>Roadsides</topic><topic>Rocks</topic><topic>Roofing</topic><topic>Roofs</topic><topic>Stress concentration</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Fan, Deyuan</creatorcontrib><creatorcontrib>Liu, Xuesheng</creatorcontrib><creatorcontrib>Tan, Yunliang</creatorcontrib><creatorcontrib>Yan, Lei</creatorcontrib><creatorcontrib>Song, Shilin</creatorcontrib><creatorcontrib>Ning, Jianguo</creatorcontrib><collection>Wiley Online Library Open Access</collection><collection>CrossRef</collection><collection>Mechanical &amp; Transportation Engineering Abstracts</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>Materials Science &amp; Engineering Collection</collection><collection>ProQuest Central (Alumni)</collection><collection>ProQuest One Sustainability</collection><collection>ProQuest Central</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest Natural Science Collection</collection><collection>Earth, Atmospheric &amp; Aquatic Science Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central</collection><collection>Engineering Research Database</collection><collection>Aerospace Database</collection><collection>SciTech Premium Collection</collection><collection>Civil Engineering Abstracts</collection><collection>ProQuest Engineering Collection</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Engineering Database</collection><collection>Earth, Atmospheric &amp; Aquatic Science Database</collection><collection>Publicly Available Content (ProQuest)</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>Engineering collection</collection><collection>DOAJ Directory of Open Access Journals</collection><jtitle>Energy science &amp; engineering</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Fan, Deyuan</au><au>Liu, Xuesheng</au><au>Tan, Yunliang</au><au>Yan, Lei</au><au>Song, Shilin</au><au>Ning, Jianguo</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>An innovative approach for gob‐side entry retaining in deep coal mines: A case study</atitle><jtitle>Energy science &amp; engineering</jtitle><date>2019-12</date><risdate>2019</risdate><volume>7</volume><issue>6</issue><spage>2321</spage><epage>2335</epage><pages>2321-2335</pages><issn>2050-0505</issn><eissn>2050-0505</eissn><abstract>Due to the complex geostress and mining conditions in the coal seam with depth of 800 m, stability of surrounding rock for gob‐side entry retaining is very difficult to achieve. In this paper, we firstly propose an innovative bolt‐grouting controlled roof‐cutting for gob‐side entry retaining (BCR‐GER) approach for deep coal mines. Secondly, a mechanical model of “surrounding rock‐supporting body” for BCR‐GER is constructed, which consists of coal wall, roadside props, and gangues in gob (the whole supporting body). Thirdly, the key parameters (ie, cutting height, cutting angle, grouting cable length, and row of roadside props) are designed. Finally, field practice was applied at the No. 31120 haulage roadway of the Suncun coal mine in China, and in situ investigations were conducted for verification. Field measurement results show that maximum convergences of roof‐to‐floor and side‐to‐side were 264 mm and 113 mm, respectively. What is more, the maximum support resistance of roadside props was reduced by approximately 58%. The deformation and failure of surrounding rock were effectively controlled, and the pressure on roadside props was greatly reduced. This research fully considers the bearing properties of gangues in gob, eliminates the secondary disasters caused by borehole blasting, and provides guidance and reference for deep surrounding rock control of the same or similar gob‐side entry. An innovative approach of BCR‐GER for deep coal mines is proposed. Three key techniques of the BCR‐GER approach are introduced. The mechanical model of “surrounding rock‐supporting body” for BCR‐GER is developed. Four key parameters of the BCR‐GER approach are designed. Field practice verifies the effect of the BCR‐GER approach.</abstract><cop>London</cop><pub>John Wiley &amp; Sons, Inc</pub><doi>10.1002/ese3.431</doi><tpages>15</tpages><orcidid>https://orcid.org/0000-0001-9844-1960</orcidid><oa>free_for_read</oa></addata></record>
fulltext fulltext
identifier ISSN: 2050-0505
ispartof Energy science & engineering, 2019-12, Vol.7 (6), p.2321-2335
issn 2050-0505
2050-0505
language eng
recordid cdi_doaj_primary_oai_doaj_org_article_bad1d3123cba4c839c31fbfbc08346f2
source Wiley Online Library Open Access; Publicly Available Content (ProQuest)
subjects Air leakage
BCR‐GER approach
Blasting
Boreholes
Cables
Case depth
Coal mines
Coal mining
Cutting parameters
deep‐mining condition
Deformation
Deformation effects
Disasters
Grouting
Haul roads
mechanical model
parameters optimization
Roadsides
Rocks
Roofing
Roofs
Stress concentration
title An innovative approach for gob‐side entry retaining in deep coal mines: A case study
url http://sfxeu10.hosted.exlibrisgroup.com/loughborough?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-28T05%3A36%3A17IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_doaj_&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=An%20innovative%20approach%20for%20gob%E2%80%90side%20entry%20retaining%20in%20deep%20coal%20mines:%20A%20case%20study&rft.jtitle=Energy%20science%20&%20engineering&rft.au=Fan,%20Deyuan&rft.date=2019-12&rft.volume=7&rft.issue=6&rft.spage=2321&rft.epage=2335&rft.pages=2321-2335&rft.issn=2050-0505&rft.eissn=2050-0505&rft_id=info:doi/10.1002/ese3.431&rft_dat=%3Cproquest_doaj_%3E2327532538%3C/proquest_doaj_%3E%3Cgrp_id%3Ecdi_FETCH-LOGICAL-c3931-dd6e242ac3af2c4bfe8d0a5e51fca1af3750cb222a1ac0f17bb5c370fa62547a3%3C/grp_id%3E%3Coa%3E%3C/oa%3E%3Curl%3E%3C/url%3E&rft_id=info:oai/&rft_pqid=2327532538&rft_id=info:pmid/&rfr_iscdi=true