Large-scale pipe jacking local anti-drag grouting system
The invention discloses a large jacking pipe local resistance reduction grouting system which comprises a local jacking pipe joint friction resistance monitoring unit, an automatic grouting resistance reduction unit and a grouting control unit. The local jacking pipe joint frictional resistance moni...
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| creator | ZHANG JINGCI LI QUANYING DOU JINZHONG WU JIANQIU HAN LEI HUANG FAN WU YUANHAO |
| description | The invention discloses a large jacking pipe local resistance reduction grouting system which comprises a local jacking pipe joint friction resistance monitoring unit, an automatic grouting resistance reduction unit and a grouting control unit. The local jacking pipe joint frictional resistance monitoring unit comprises a plurality of strain gauges and a transmission assembly, and the plurality of strain gauges are pre-buried in each jacking pipe joint and are in data connection with the transmission assembly; the automatic grouting drag reduction unit comprises a mud pit, a grouting pipeline and a pipeline control assembly, and the grouting pipeline communicates with the mud pit and is distributed to each jacking pipe joint along the jacking pipe tunnel; the pipeline control assembly is arranged on the grouting pipeline; and the grouting control unit calculates and determines the frictional resistance borne by each pipe joint, and controls a pipeline control assembly in the automatic grouting resistance redu |
| format | Patent |
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The local jacking pipe joint frictional resistance monitoring unit comprises a plurality of strain gauges and a transmission assembly, and the plurality of strain gauges are pre-buried in each jacking pipe joint and are in data connection with the transmission assembly; the automatic grouting drag reduction unit comprises a mud pit, a grouting pipeline and a pipeline control assembly, and the grouting pipeline communicates with the mud pit and is distributed to each jacking pipe joint along the jacking pipe tunnel; the pipeline control assembly is arranged on the grouting pipeline; and the grouting control unit calculates and determines the frictional resistance borne by each pipe joint, and controls a pipeline control assembly in the automatic grouting resistance redu</description><language>chi ; eng</language><subject>EARTH DRILLING ; FIXED CONSTRUCTIONS ; GALLERIES ; LARGE UNDERGROUND CHAMBERS ; MINING ; SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS ; SHAFTS ; TUNNELS</subject><creationdate>2023</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=20230530&DB=EPODOC&CC=CN&NR=116181349A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20230530&DB=EPODOC&CC=CN&NR=116181349A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>ZHANG JINGCI</creatorcontrib><creatorcontrib>LI QUANYING</creatorcontrib><creatorcontrib>DOU JINZHONG</creatorcontrib><creatorcontrib>WU JIANQIU</creatorcontrib><creatorcontrib>HAN LEI</creatorcontrib><creatorcontrib>HUANG FAN</creatorcontrib><creatorcontrib>WU YUANHAO</creatorcontrib><title>Large-scale pipe jacking local anti-drag grouting system</title><description>The invention discloses a large jacking pipe local resistance reduction grouting system which comprises a local jacking pipe joint friction resistance monitoring unit, an automatic grouting resistance reduction unit and a grouting control unit. 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The local jacking pipe joint frictional resistance monitoring unit comprises a plurality of strain gauges and a transmission assembly, and the plurality of strain gauges are pre-buried in each jacking pipe joint and are in data connection with the transmission assembly; the automatic grouting drag reduction unit comprises a mud pit, a grouting pipeline and a pipeline control assembly, and the grouting pipeline communicates with the mud pit and is distributed to each jacking pipe joint along the jacking pipe tunnel; the pipeline control assembly is arranged on the grouting pipeline; and the grouting control unit calculates and determines the frictional resistance borne by each pipe joint, and controls a pipeline control assembly in the automatic grouting resistance redu</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | EARTH DRILLING FIXED CONSTRUCTIONS GALLERIES LARGE UNDERGROUND CHAMBERS MINING SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS SHAFTS TUNNELS |
| title | Large-scale pipe jacking local anti-drag grouting system |
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