Concrete marker pile for monitoring mining-induced damage
The invention provides a concrete marker pile for monitoring mining-induced damage. A measuring point is constructed into a trapezoid concrete pile with a rebar and comprises a foundation pit, a concrete base and the rebar. The concrete marker pile is 600mm in length, the top cross section is arrang...
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| creator | LI XINLING LI CHAO GUO WENBING LOU GAOZHONG XU FEIYA LI YATAO LI XUEFENG BAI ERHU WANG ZUNYI TAN YI LI KE YANG DAMING |
| description | The invention provides a concrete marker pile for monitoring mining-induced damage. A measuring point is constructed into a trapezoid concrete pile with a rebar and comprises a foundation pit, a concrete base and the rebar. The concrete marker pile is 600mm in length, the top cross section is arranged as a square in size of 100*100mm2 and the bottom cross section is arranged as a square in size of 200*200mm2. When the concrete marker pile is prefabricated, the rebar in length of about 10-20cm and diameter of about 10mm is embedded into the upper end of the concrete marker pile, a crossing thread is curved at the top of the rebar or a small hole is drilled at the top and the rebar is exposed out of the concrete pile by 10mm to be used as the center of the measuring point marker. According to the invention, the cast-in-place measuring point can avoid damage caused by human factor or other reasons, can be perfectly stored and has high precision and small error. The quality of field observation work can be greatl |
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A measuring point is constructed into a trapezoid concrete pile with a rebar and comprises a foundation pit, a concrete base and the rebar. The concrete marker pile is 600mm in length, the top cross section is arranged as a square in size of 100*100mm2 and the bottom cross section is arranged as a square in size of 200*200mm2. When the concrete marker pile is prefabricated, the rebar in length of about 10-20cm and diameter of about 10mm is embedded into the upper end of the concrete marker pile, a crossing thread is curved at the top of the rebar or a small hole is drilled at the top and the rebar is exposed out of the concrete pile by 10mm to be used as the center of the measuring point marker. According to the invention, the cast-in-place measuring point can avoid damage caused by human factor or other reasons, can be perfectly stored and has high precision and small error. The quality of field observation work can be greatl</description><language>chi ; eng</language><subject>GYROSCOPIC INSTRUMENTS ; MEASURING ; MEASURING DISTANCES, LEVELS OR BEARINGS ; NAVIGATION ; PHOTOGRAMMETRY OR VIDEOGRAMMETRY ; PHYSICS ; SURVEYING ; TESTING</subject><creationdate>2017</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=20170818&DB=EPODOC&CC=CN&NR=107063212A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20170818&DB=EPODOC&CC=CN&NR=107063212A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>LI XINLING</creatorcontrib><creatorcontrib>LI CHAO</creatorcontrib><creatorcontrib>GUO WENBING</creatorcontrib><creatorcontrib>LOU GAOZHONG</creatorcontrib><creatorcontrib>XU FEIYA</creatorcontrib><creatorcontrib>LI YATAO</creatorcontrib><creatorcontrib>LI XUEFENG</creatorcontrib><creatorcontrib>BAI ERHU</creatorcontrib><creatorcontrib>WANG ZUNYI</creatorcontrib><creatorcontrib>TAN YI</creatorcontrib><creatorcontrib>LI KE</creatorcontrib><creatorcontrib>YANG DAMING</creatorcontrib><title>Concrete marker pile for monitoring mining-induced damage</title><description>The invention provides a concrete marker pile for monitoring mining-induced damage. 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| language | chi ; eng |
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| subjects | GYROSCOPIC INSTRUMENTS MEASURING MEASURING DISTANCES, LEVELS OR BEARINGS NAVIGATION PHOTOGRAMMETRY OR VIDEOGRAMMETRY PHYSICS SURVEYING TESTING |
| title | Concrete marker pile for monitoring mining-induced damage |
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