EP2258903A1 - Procédé et installation de réalisation de colonnes vibrées au niveau du sol d'étendues d'eau - Google Patents
Procédé et installation de réalisation de colonnes vibrées au niveau du sol d'étendues d'eau Download PDFInfo
- Publication number
- EP2258903A1 EP2258903A1 EP09007298A EP09007298A EP2258903A1 EP 2258903 A1 EP2258903 A1 EP 2258903A1 EP 09007298 A EP09007298 A EP 09007298A EP 09007298 A EP09007298 A EP 09007298A EP 2258903 A1 EP2258903 A1 EP 2258903A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sand
- water
- fine grain
- waters
- separated
- 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.)
- Withdrawn
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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
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/10—Placing gravel or light material under water inasmuch as not provided for elsewhere
-
- 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
- E02D3/08—Improving by compacting by inserting stones or lost bodies, e.g. compaction piles
-
- 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
Definitions
- the invention relates to a method for producing Rüttelstopfklalen at the bottom of waters, especially in offshore areas, and a system for carrying out this method.
- a method and apparatus for producing columns of material in the soil of waters in which in the soil to be introduced material such as concrete or gravel is introduced by means of a deep vibrator in the ground, the deep vibrator is attached to a Erdbau réelle on a pontoon floating on the water surface.
- the material must be introduced into a standing on the pontoon material reservoir, ie be brought to the pontoon with watercraft, which leads to a considerable cost and lead to other in stronger winds or heavy waves to obstructions or interruptions in the application of the method can.
- the present invention has the object to provide a method of the last-mentioned type, which is less expensive than known methods and offers increased application security regardless of the weather.
- the solution consists of a method for producing shaking pit columns at the bottom of waters, in particular in offshore areas, using sand from the bottom of the water body, separating the sand from its fine grain portion, and treating the treated sand in agitator columns at the bottom of the water body is installed.
- the proportion of fine particles is understood as meaning particle sizes smaller than or equal to 0.06 mm.
- the sand is spent over the surface of the water for treatment.
- suction device is also possible in weather conditions that would no longer allow the application of a watercraft to an offshore floating pontoon.
- the separation according to the invention of the fine grain fraction from the sand to be built up ensures the necessary compactability for the production of the sand columns.
- the cost share for this is negligible.
- any organic contaminants which may be present are separated from the sand to be built up at the same time as the fine grain fraction, and this can be done in a uniform process.
- preference is given to using washing processes on vibrators or the like, if appropriate also sieving processes.
- the separated from the sand to be installed shares can be returned in the vicinity of the sampling point, taking into account the flow conditions back into the water.
- the separated shares can also be landfilled.
- the sand to be built is provided in suitable quality, its onward transport to the place of manufacture of the columns may be made, preferably by hydraulic means, i. in a slurry with water, but possibly also by pneumatic means.
- a plant according to the invention for producing agitator columns at the bottom of waters for carrying out the aforesaid process comprises a sand lifting device for lifting sand from the bottom of the water body, a sand treatment device for separating the sand at least from its fine grain fraction, to a sand transmitter for transporting the sand to the site the shoring and a sluice vibrator for producing the Studttelstopfklalen.
- the lock vibrator is mounted on a drill pipe, at the upper end of the feed gate is arranged.
- the lock vibrator with its suspension can be arranged on a separate vessel (pontoon) with greater mobility, while the remaining parts of the interlinked system namely suction dredger, sand treatment plant and sand transmitter on a second larger watercraft (pontoon), which is firmly anchored, be arranged could. But it is also a / the arrangement on a single vessel (pontoon) possible.
- the lock vibrator may be suspended from a crane or guided on a fixed frame.
- FIG. 1 a chained overall system 11 according to the invention is shown, the interlinked plant parts are arranged on two watercraft 12, 13, both of which are floating on the water surface 14.
- the bottom of the water is designated 15.
- the suction pipe 17 extends to the bottom 15 of the water and sucks from this sand in the existing state.
- Said suction tube 17 may be flexible or telescopic in order to compensate for the depth of the base 15 which changes as a result of the suction.
- the sand mixed with water is conveyed hydraulically via a line 18 to a sand separating device 19, in which certain parts are separated from the sand, namely the fine grain fraction and optionally organic impurities. These are returned via a flushing pipe 20 at a distance from the sand removal point back into the water.
- a bottom well 21 can be seen, at the return point of the separation shares a landfill 22.
- the treated sand is transported hydraulically via a line 23 to a sand transmitter 24, which is essentially a pump assembly for the sand-water mixture. From this Sandsender 24 is supplied via a flexible line 25 which leads from the first floating vehicle 12 to the second floating vehicle 13, a lock vibrator 26, namely its lock chamber.
- the lock vibrator 26 is lowered on a crane 27 attached, which stands on the second vessel 13.
- the type of guidance of the lock vibrator 26 shown hereby is advantageous in the case of stronger proper movements of the watercraft.
- Schleusenrüttler 26 Of the Water content of the hydraulically conveyed sand is separated in Schleusenrüttler 26 still in the region of the overhead lock chamber. Below the Schleusenrüttlers 26 an already partially completed Trottelstopfklale 28 can be seen, which arises when pulling up the Schleusenrüttlers 26 with the escape of sand after previously shaking the Schleusenrüttlers 26 without discharging sand.
- the pulling of the Schleusenrüttlers 26 is carried out according to the vocational-step method, wherein after a larger step of pulling each a smaller step of re-shaking takes place for compacting the discharged sand.
- FIG. 2 the lock vibrator is shown as an enlarged detail.
- the supply line 25 at the upper end and a water outlet 29 can be seen, both of which are connected to an overhead feed chamber 30.
- On the dispensing chamber 30 has a first closure 31 at the upper end and a second closure 32 at the lower end.
- a pressure chamber 33 with a subsequent pressure tube 34 at the feed chamber 30 or lock chamber is followed by a pressure chamber 33 with a subsequent pressure tube 34 at.
- the closure 31 open and the closure 32 closed dehydrated sand can be introduced into the lock chamber 30 without pressure in the feed chamber 30.
- the shutter 31 is closed and pressure is applied to the pressure chamber 33 and the tube 34, so that a sufficient back pressure to the water pressure is built up when the lower shutter 32 is opened.
- Sand is then passed over the lower half pipe section 36 past the deep vibrator 37 to the lower outlet opening 38.
- the deep vibrator is attached via a flexible coupling 35 to a pipe string 39. It is driven in an electrically rotating manner by means of an internal motor, an unbalanced mass being mounted in the deep vibrator 37, which generates the vibrating movements of the sluice vibrator.
- a roller 40 can be seen, over which the support cable of the crane runs.
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Engineering & Computer Science (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- Agronomy & Crop Science (AREA)
- Environmental & Geological Engineering (AREA)
- Soil Sciences (AREA)
- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP09007298A EP2258903A1 (fr) | 2009-06-02 | 2009-06-02 | Procédé et installation de réalisation de colonnes vibrées au niveau du sol d'étendues d'eau |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP09007298A EP2258903A1 (fr) | 2009-06-02 | 2009-06-02 | Procédé et installation de réalisation de colonnes vibrées au niveau du sol d'étendues d'eau |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2258903A1 true EP2258903A1 (fr) | 2010-12-08 |
Family
ID=41278742
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09007298A Withdrawn EP2258903A1 (fr) | 2009-06-02 | 2009-06-02 | Procédé et installation de réalisation de colonnes vibrées au niveau du sol d'étendues d'eau |
Country Status (1)
Country | Link |
---|---|
EP (1) | EP2258903A1 (fr) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010022802A1 (de) * | 2010-06-05 | 2011-12-08 | Ecosoil Ost Gmbh | Verfahren zur Verbesserung der bodenmechanischen Eigenschaften(z.B.Lagerungsdichte) von Böden im amphibischen Wasser-Land-Übergangsbereich von Gewässern, Bodensenken und Baugrundsanierungsgebieten |
DE102011006735A1 (de) * | 2011-04-04 | 2012-10-04 | Alexander Degen | Vorrichtung und Verfahren zur Förderung von Schüttgut |
WO2013135317A1 (fr) * | 2012-03-16 | 2013-09-19 | Vsl International Ag | Procédé et agencement pour produire des colonnes de gravier |
CN104831699A (zh) * | 2015-04-09 | 2015-08-12 | 中交第二航务工程局有限公司 | 一种自升式碎石桩施工平台 |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2543320A1 (de) | 1975-09-29 | 1977-04-07 | Rudolf Dr Ing Vogel | Verfahren und anlage zum gruenden eines bauwerks am meeresboden |
JPS58153813A (ja) * | 1982-03-09 | 1983-09-13 | Penta Ocean Constr Co Ltd | サンドドレ−ン工法 |
JPS58178720A (ja) * | 1982-04-15 | 1983-10-19 | Nippon Kaikou Kk | 水底下砂杭造成方法及び装置 |
EP0319070A1 (fr) * | 1987-11-19 | 1989-06-07 | B.V. Grint- en Zandexploitatiemaatschappij v/h Gebrs. Smals | Procédé et installation pour l'extraction du matériau granuleux dans une composition prédéterminée |
JP2001090053A (ja) * | 1999-09-21 | 2001-04-03 | Fudo Constr Co Ltd | 杭材料の搬送システム |
JP2001303540A (ja) * | 2000-04-19 | 2001-10-31 | Penta Ocean Constr Co Ltd | 砂杭打設による軟弱地盤改良工法における盛り上がり軟弱土の処理方法 |
JP2002105944A (ja) * | 2000-09-28 | 2002-04-10 | Okutama Kogyo Co Ltd | 地盤改良方法 |
DE10053427A1 (de) | 2000-10-27 | 2002-05-16 | Wilhelm Degen | Vorrichtung und Verfahren zur Erzeugung von Materialsäulen im Boden von Gewässern |
GB2430168A (en) * | 2005-09-14 | 2007-03-21 | Dermot Nally | A sand and gravel washing process |
-
2009
- 2009-06-02 EP EP09007298A patent/EP2258903A1/fr not_active Withdrawn
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2543320A1 (de) | 1975-09-29 | 1977-04-07 | Rudolf Dr Ing Vogel | Verfahren und anlage zum gruenden eines bauwerks am meeresboden |
JPS58153813A (ja) * | 1982-03-09 | 1983-09-13 | Penta Ocean Constr Co Ltd | サンドドレ−ン工法 |
JPS58178720A (ja) * | 1982-04-15 | 1983-10-19 | Nippon Kaikou Kk | 水底下砂杭造成方法及び装置 |
EP0319070A1 (fr) * | 1987-11-19 | 1989-06-07 | B.V. Grint- en Zandexploitatiemaatschappij v/h Gebrs. Smals | Procédé et installation pour l'extraction du matériau granuleux dans une composition prédéterminée |
JP2001090053A (ja) * | 1999-09-21 | 2001-04-03 | Fudo Constr Co Ltd | 杭材料の搬送システム |
JP2001303540A (ja) * | 2000-04-19 | 2001-10-31 | Penta Ocean Constr Co Ltd | 砂杭打設による軟弱地盤改良工法における盛り上がり軟弱土の処理方法 |
JP2002105944A (ja) * | 2000-09-28 | 2002-04-10 | Okutama Kogyo Co Ltd | 地盤改良方法 |
DE10053427A1 (de) | 2000-10-27 | 2002-05-16 | Wilhelm Degen | Vorrichtung und Verfahren zur Erzeugung von Materialsäulen im Boden von Gewässern |
GB2430168A (en) * | 2005-09-14 | 2007-03-21 | Dermot Nally | A sand and gravel washing process |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010022802A1 (de) * | 2010-06-05 | 2011-12-08 | Ecosoil Ost Gmbh | Verfahren zur Verbesserung der bodenmechanischen Eigenschaften(z.B.Lagerungsdichte) von Böden im amphibischen Wasser-Land-Übergangsbereich von Gewässern, Bodensenken und Baugrundsanierungsgebieten |
DE102010022802B4 (de) * | 2010-06-05 | 2016-06-09 | Ecosoil Ost Gmbh | Verfahren und Vorrichtung zur Verbesserung der bodenmechanischen Eigenschaften von Böden im amphibischen Wasser-Land-Übergangsbereich von Gewässern, Bodensenken und Baugrundsanierungsgebieten |
DE102011006735A1 (de) * | 2011-04-04 | 2012-10-04 | Alexander Degen | Vorrichtung und Verfahren zur Förderung von Schüttgut |
WO2013135317A1 (fr) * | 2012-03-16 | 2013-09-19 | Vsl International Ag | Procédé et agencement pour produire des colonnes de gravier |
CN104334800A (zh) * | 2012-03-16 | 2015-02-04 | Vsl国际股份公司 | 用于制造砾石柱的方法和组件 |
CN104334801A (zh) * | 2012-03-16 | 2015-02-04 | Vsl国际股份公司 | 用于制造砾石柱的方法和组件 |
CN104334800B (zh) * | 2012-03-16 | 2016-07-13 | Vsl国际股份公司 | 用于制造砾石柱的方法和组件 |
CN104334801B (zh) * | 2012-03-16 | 2017-06-13 | Vsl国际股份公司 | 用于制造砾石柱的方法和组件 |
AU2012372898B2 (en) * | 2012-03-16 | 2017-09-07 | Vsl International Ag | Method and arrangement for producing gravel columns |
CN104831699A (zh) * | 2015-04-09 | 2015-08-12 | 中交第二航务工程局有限公司 | 一种自升式碎石桩施工平台 |
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