Tunneling method for extrusion blasting of small-included-angle wedge-shaped underholing
The invention relates to a small-included-angle wedge-shaped underholing extrusion blasting tunneling method. The invention discloses a small-included-angle wedge-shaped underholing extrusion blasting tunneling method. The method comprises the steps that (1) a small-included-angle wedge-shaped under...
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| creator | CHEN SHAOMIN HUANG LEI ZHAO CHUNSHAN TANG WEI HUANGFU FENGCHENG JIA XINCHUN YAN PENG WANG QIANG |
| description | The invention relates to a small-included-angle wedge-shaped underholing extrusion blasting tunneling method. The invention discloses a small-included-angle wedge-shaped underholing extrusion blasting tunneling method. The method comprises the steps that (1) a small-included-angle wedge-shaped underholing hole is constructed in the lower position or the upper position of the middle of a mining roadway; (2) auxiliary holes are constructed in the periphery of the small-included-angle wedge-shaped underholing hole; (3) normal rows of shot holes are constructed in the middle-upper position or the middle-lower position of the mining roadway; (4) constructing a top hole or a bottom hole in the mining roadway; (5) the top hole or the bottom hole is filled with an explosive cartridge and a primer detonator, and a hole opening is blocked with stemming; and (6) carrying out millisecond extrusion blasting by utilizing a compensation space between the surface of the mining roadway filling body and the surface of the ore |
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The invention discloses a small-included-angle wedge-shaped underholing extrusion blasting tunneling method. The method comprises the steps that (1) a small-included-angle wedge-shaped underholing hole is constructed in the lower position or the upper position of the middle of a mining roadway; (2) auxiliary holes are constructed in the periphery of the small-included-angle wedge-shaped underholing hole; (3) normal rows of shot holes are constructed in the middle-upper position or the middle-lower position of the mining roadway; (4) constructing a top hole or a bottom hole in the mining roadway; (5) the top hole or the bottom hole is filled with an explosive cartridge and a primer detonator, and a hole opening is blocked with stemming; and (6) carrying out millisecond extrusion blasting by utilizing a compensation space between the surface of the mining roadway filling body and the surface of the ore</description><language>chi ; eng</language><subject>AMMUNITION ; BLASTING ; HEATING ; LIGHTING ; MECHANICAL ENGINEERING ; WEAPONS</subject><creationdate>2022</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20221230&DB=EPODOC&CC=CN&NR=115540702A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76419</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20221230&DB=EPODOC&CC=CN&NR=115540702A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>CHEN SHAOMIN</creatorcontrib><creatorcontrib>HUANG LEI</creatorcontrib><creatorcontrib>ZHAO CHUNSHAN</creatorcontrib><creatorcontrib>TANG WEI</creatorcontrib><creatorcontrib>HUANGFU FENGCHENG</creatorcontrib><creatorcontrib>JIA XINCHUN</creatorcontrib><creatorcontrib>YAN PENG</creatorcontrib><creatorcontrib>WANG QIANG</creatorcontrib><title>Tunneling method for extrusion blasting of small-included-angle wedge-shaped underholing</title><description>The invention relates to a small-included-angle wedge-shaped underholing extrusion blasting tunneling method. The invention discloses a small-included-angle wedge-shaped underholing extrusion blasting tunneling method. The method comprises the steps that (1) a small-included-angle wedge-shaped underholing hole is constructed in the lower position or the upper position of the middle of a mining roadway; (2) auxiliary holes are constructed in the periphery of the small-included-angle wedge-shaped underholing hole; (3) normal rows of shot holes are constructed in the middle-upper position or the middle-lower position of the mining roadway; (4) constructing a top hole or a bottom hole in the mining roadway; (5) the top hole or the bottom hole is filled with an explosive cartridge and a primer detonator, and a hole opening is blocked with stemming; and (6) carrying out millisecond extrusion blasting by utilizing a compensation space between the surface of the mining roadway filling body and the surface of the ore</description><subject>AMMUNITION</subject><subject>BLASTING</subject><subject>HEATING</subject><subject>LIGHTING</subject><subject>MECHANICAL ENGINEERING</subject><subject>WEAPONS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2022</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqNjD0KwkAUBtNYiHqH5wEWEjVYS1CsrFLYhTX7bTbw8jbsD3p8CXgAqylmmHXxbLMIeJSBJiTnDVkfCJ8Uchy90It1TIv1luKkmdUoPWcDo7QMDHrDDFDR6RmGshgE55fdtlhZzRG7HzfF_nZtm7vC7DvEWfcQpK55VFVdn8pzebgc_2m-8GU61g</recordid><startdate>20221230</startdate><enddate>20221230</enddate><creator>CHEN SHAOMIN</creator><creator>HUANG LEI</creator><creator>ZHAO CHUNSHAN</creator><creator>TANG WEI</creator><creator>HUANGFU FENGCHENG</creator><creator>JIA XINCHUN</creator><creator>YAN PENG</creator><creator>WANG QIANG</creator><scope>EVB</scope></search><sort><creationdate>20221230</creationdate><title>Tunneling method for extrusion blasting of small-included-angle wedge-shaped underholing</title><author>CHEN SHAOMIN ; HUANG LEI ; ZHAO CHUNSHAN ; TANG WEI ; HUANGFU FENGCHENG ; JIA XINCHUN ; YAN PENG ; WANG QIANG</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CN115540702A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>chi ; eng</language><creationdate>2022</creationdate><topic>AMMUNITION</topic><topic>BLASTING</topic><topic>HEATING</topic><topic>LIGHTING</topic><topic>MECHANICAL ENGINEERING</topic><topic>WEAPONS</topic><toplevel>online_resources</toplevel><creatorcontrib>CHEN SHAOMIN</creatorcontrib><creatorcontrib>HUANG LEI</creatorcontrib><creatorcontrib>ZHAO CHUNSHAN</creatorcontrib><creatorcontrib>TANG WEI</creatorcontrib><creatorcontrib>HUANGFU FENGCHENG</creatorcontrib><creatorcontrib>JIA XINCHUN</creatorcontrib><creatorcontrib>YAN PENG</creatorcontrib><creatorcontrib>WANG QIANG</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>CHEN SHAOMIN</au><au>HUANG LEI</au><au>ZHAO CHUNSHAN</au><au>TANG WEI</au><au>HUANGFU FENGCHENG</au><au>JIA XINCHUN</au><au>YAN PENG</au><au>WANG QIANG</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Tunneling method for extrusion blasting of small-included-angle wedge-shaped underholing</title><date>2022-12-30</date><risdate>2022</risdate><abstract>The invention relates to a small-included-angle wedge-shaped underholing extrusion blasting tunneling method. The invention discloses a small-included-angle wedge-shaped underholing extrusion blasting tunneling method. The method comprises the steps that (1) a small-included-angle wedge-shaped underholing hole is constructed in the lower position or the upper position of the middle of a mining roadway; (2) auxiliary holes are constructed in the periphery of the small-included-angle wedge-shaped underholing hole; (3) normal rows of shot holes are constructed in the middle-upper position or the middle-lower position of the mining roadway; (4) constructing a top hole or a bottom hole in the mining roadway; (5) the top hole or the bottom hole is filled with an explosive cartridge and a primer detonator, and a hole opening is blocked with stemming; and (6) carrying out millisecond extrusion blasting by utilizing a compensation space between the surface of the mining roadway filling body and the surface of the ore</abstract><oa>free_for_read</oa></addata></record> |
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| language | chi ; eng |
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| subjects | AMMUNITION BLASTING HEATING LIGHTING MECHANICAL ENGINEERING WEAPONS |
| title | Tunneling method for extrusion blasting of small-included-angle wedge-shaped underholing |
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