JPS6421200A - Timbering structure of underground cavity - Google Patents
Timbering structure of underground cavityInfo
- Publication number
- JPS6421200A JPS6421200A JP17615987A JP17615987A JPS6421200A JP S6421200 A JPS6421200 A JP S6421200A JP 17615987 A JP17615987 A JP 17615987A JP 17615987 A JP17615987 A JP 17615987A JP S6421200 A JPS6421200 A JP S6421200A
- Authority
- JP
- Japan
- Prior art keywords
- guide member
- rock
- concrete
- bed
- wire mesh
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Piles And Underground Anchors (AREA)
Abstract
PURPOSE: To transmit the supporting force of a rock anchor over the wide range of a rock bed by burying a welded wire mesh and a guide member in shotcrete and fixing the rock anchor inside the guide member. CONSTITUTION: The welded wire mesh 11 and the guide member 12 are attached to respective reinforced supports 10 built in the rock bed G, attaching concrete 1 is executed separately in four layers 1a-1d and the supports 10, the welded wire mesh 11 and the guide member 12 are buried in the concrete 1. Then, a bore hole 5 is formed from the inner side of the guide member 12 to the rock bed G, a PC steel material 7 is arranged and fixed in the inside and a grouting material 13 is filled inside the guide member 12. Then, the tension force of the rock anchor 2 is transmitted to the rock bed G over the wide range, the rock bed G is supported by the concrete 1 with the fixed part of the rock anchor 2 as a fulcrum and reliability is improved.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62176159A JP2617105B2 (en) | 1987-07-15 | 1987-07-15 | Support structure of underground cavity |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62176159A JP2617105B2 (en) | 1987-07-15 | 1987-07-15 | Support structure of underground cavity |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6421200A true JPS6421200A (en) | 1989-01-24 |
JP2617105B2 JP2617105B2 (en) | 1997-06-04 |
Family
ID=16008696
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62176159A Expired - Lifetime JP2617105B2 (en) | 1987-07-15 | 1987-07-15 | Support structure of underground cavity |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2617105B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103470275A (en) * | 2013-10-16 | 2013-12-25 | 中国水利水电第十四工程局有限公司 | Method for excavating and supporting large-span level-crossing fork of underground chamber |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5397206A (en) * | 1977-02-07 | 1978-08-25 | Minoru Yamamoto | Device for attaching reinforcement rod to lockkup bolt in lockkup bolt working |
JPS5612498A (en) * | 1979-07-10 | 1981-02-06 | Kubota Ltd | Locking bolt |
-
1987
- 1987-07-15 JP JP62176159A patent/JP2617105B2/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5397206A (en) * | 1977-02-07 | 1978-08-25 | Minoru Yamamoto | Device for attaching reinforcement rod to lockkup bolt in lockkup bolt working |
JPS5612498A (en) * | 1979-07-10 | 1981-02-06 | Kubota Ltd | Locking bolt |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103470275A (en) * | 2013-10-16 | 2013-12-25 | 中国水利水电第十四工程局有限公司 | Method for excavating and supporting large-span level-crossing fork of underground chamber |
CN103470275B (en) * | 2013-10-16 | 2015-09-30 | 中国水利水电第十四工程局有限公司 | A kind of large-span underground chamber usual friendship junctions excavation supporting method |
Also Published As
Publication number | Publication date |
---|---|
JP2617105B2 (en) | 1997-06-04 |
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