Full pile casing twisting follow-up rotary excavating pore-forming construction method
The invention discloses a full pile casing twisting follow-up rotary excavating pore-forming construction method. The construction method is characterized in that a pipe twisting device and a matchedsteel casing are adopted, a single-casing method or a double-casing method is selected according to t...
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| creator | ZHANG JIANNING GAO FEI MEI WENCHAO ZHU SHAOYANG LI XIANBING GE YUQIAO YANG YONG TIAN GUIHONG DAI YUMAO |
| description | The invention discloses a full pile casing twisting follow-up rotary excavating pore-forming construction method. The construction method is characterized in that a pipe twisting device and a matchedsteel casing are adopted, a single-casing method or a double-casing method is selected according to the needed casing depth, wherein according to the single-casing method, the casing is installed after a pile hole is positioned, core drilling is conducted through a rotary drilling rig, the casing is pressed downwards and screwed into a soil layer through the pipe twisting device every time a certain depth is drilled, and the cycle is repeated till the casing is embedded into bedrock or reaches the designed depth; and according to the double-casing method, in order to overcome the frictional resistance of a soil body to the pile casing, a pile casing construction sequence from outside to inside is adopted, other operations are the same as those of the single-casing method, and a multi-casing method can be derived i |
| format | Patent |
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The construction method is characterized in that a pipe twisting device and a matchedsteel casing are adopted, a single-casing method or a double-casing method is selected according to the needed casing depth, wherein according to the single-casing method, the casing is installed after a pile hole is positioned, core drilling is conducted through a rotary drilling rig, the casing is pressed downwards and screwed into a soil layer through the pipe twisting device every time a certain depth is drilled, and the cycle is repeated till the casing is embedded into bedrock or reaches the designed depth; and according to the double-casing method, in order to overcome the frictional resistance of a soil body to the pile casing, a pile casing construction sequence from outside to inside is adopted, other operations are the same as those of the single-casing method, and a multi-casing method can be derived i</description><language>chi ; eng</language><subject>EARTH DRILLING ; EARTH DRILLING, e.g. DEEP DRILLING ; EMBANKMENTS ; EXCAVATIONS ; FIXED CONSTRUCTIONS ; FOUNDATIONS ; HYDRAULIC ENGINEERING ; MINING ; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS ; SOIL SHIFTING ; UNDERGROUND OR UNDERWATER STRUCTURES</subject><creationdate>2021</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=20210326&DB=EPODOC&CC=CN&NR=112554176A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25563,76318</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20210326&DB=EPODOC&CC=CN&NR=112554176A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>ZHANG JIANNING</creatorcontrib><creatorcontrib>GAO FEI</creatorcontrib><creatorcontrib>MEI WENCHAO</creatorcontrib><creatorcontrib>ZHU SHAOYANG</creatorcontrib><creatorcontrib>LI XIANBING</creatorcontrib><creatorcontrib>GE YUQIAO</creatorcontrib><creatorcontrib>YANG YONG</creatorcontrib><creatorcontrib>TIAN GUIHONG</creatorcontrib><creatorcontrib>DAI YUMAO</creatorcontrib><title>Full pile casing twisting follow-up rotary excavating pore-forming construction method</title><description>The invention discloses a full pile casing twisting follow-up rotary excavating pore-forming construction method. 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The construction method is characterized in that a pipe twisting device and a matchedsteel casing are adopted, a single-casing method or a double-casing method is selected according to the needed casing depth, wherein according to the single-casing method, the casing is installed after a pile hole is positioned, core drilling is conducted through a rotary drilling rig, the casing is pressed downwards and screwed into a soil layer through the pipe twisting device every time a certain depth is drilled, and the cycle is repeated till the casing is embedded into bedrock or reaches the designed depth; and according to the double-casing method, in order to overcome the frictional resistance of a soil body to the pile casing, a pile casing construction sequence from outside to inside is adopted, other operations are the same as those of the single-casing method, and a multi-casing method can be derived i</abstract><oa>free_for_read</oa></addata></record> |
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| language | chi ; eng |
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| subjects | EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING EMBANKMENTS EXCAVATIONS FIXED CONSTRUCTIONS FOUNDATIONS HYDRAULIC ENGINEERING MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS SOIL SHIFTING UNDERGROUND OR UNDERWATER STRUCTURES |
| title | Full pile casing twisting follow-up rotary excavating pore-forming construction method |
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