TW200704850A - Marine sand drain construction and management method - Google Patents
Marine sand drain construction and management methodInfo
- Publication number
- TW200704850A TW200704850A TW094137438A TW94137438A TW200704850A TW 200704850 A TW200704850 A TW 200704850A TW 094137438 A TW094137438 A TW 094137438A TW 94137438 A TW94137438 A TW 94137438A TW 200704850 A TW200704850 A TW 200704850A
- Authority
- TW
- Taiwan
- Prior art keywords
- sand
- casing pipe
- seawater
- time
- management method
- Prior art date
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/02—Improving by compacting
- E02D3/10—Improving by compacting by watering, draining, de-aerating or blasting, e.g. by installing sand or wick drains
- E02D3/106—Improving by compacting by watering, draining, de-aerating or blasting, e.g. by installing sand or wick drains by forming sand drains containing only loose aggregates
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0061—Production methods for working underwater
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- Agronomy & Crop Science (AREA)
- Environmental & Geological Engineering (AREA)
- Soil Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The object of the present invention is to facilitate construction management by improving efficiency of a construction cycle time by preventing construction failure by continuously making a discharge quantity of sand from a casing pipe lower end constant. The solution of the present invention is that during or after a casing pipe 1 is driven up to the predetermined penetration depth, seawater is fed into the casing pipe together with sand, and at the time when the casing pipe 1 is being extracted, sand quantity and seawater quantity are adjusted so as to continuously discharge the sand from a lower end of the casing pipe. Thus, the relationship between internal pressure W of the lower end of the casing pipe and external pressure P of the lower end of the casing pipe is set to be P<W. Further, the sand quantity and the seawater quantity are adjusted so that water content at the time sand is discharged is 20-25% and an apparent degree of saturation is 80-148%. Mixing time of the sand and the seawater is set to 100 to 80 in sand input time when assuming seawater input time as 100.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005215122A JP2007032038A (en) | 2005-07-25 | 2005-07-25 | Marine sand drain construction management method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| TW200704850A true TW200704850A (en) | 2007-02-01 |
Family
ID=37673571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW094137438A TW200704850A (en) | 2005-07-25 | 2005-10-26 | Marine sand drain construction and management method |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP2007032038A (en) |
| KR (1) | KR20070013182A (en) |
| CN (1) | CN1904224A (en) |
| TW (1) | TW200704850A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101914921B (en) * | 2010-09-15 | 2012-05-30 | 徐国彬 | Novel type pile foundation for sea turn engineering and pile forming method thereof |
| CN102140797B (en) * | 2011-01-18 | 2012-07-25 | 中交第三航务工程局有限公司 | Sand slinging preparation linkage control system and method |
| JP7166044B2 (en) * | 2020-02-14 | 2022-11-07 | 株式会社不動テトラ | SIMPLE EVALUATION METHOD AND DEVICE FOR JUDGING POSSIBLE REUSE AS PILE MATERIAL FOR SAND PILE-BASED SOIL IMPROVEMENT |
-
2005
- 2005-07-25 JP JP2005215122A patent/JP2007032038A/en active Pending
- 2005-10-26 TW TW094137438A patent/TW200704850A/en unknown
- 2005-11-01 KR KR1020050103682A patent/KR20070013182A/en not_active Application Discontinuation
-
2006
- 2006-05-11 CN CNA2006100805078A patent/CN1904224A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CN1904224A (en) | 2007-01-31 |
| JP2007032038A (en) | 2007-02-08 |
| KR20070013182A (en) | 2007-01-30 |
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