Abstract:
Die Erfindung betrifft einen Materialsammelbehälter (05) eines Saugbaggers (01) mit einem Sauganschluss (06) an seiner hinteren Stirnwand und einer Saugstromführung, die vom Sauganschluss (06) durch eine Sammelkammer (23) und eine Filtereinheit (25) führt. Der Sauganschluss (06) ist so an der hinteren Stirnwand positioniert, dass er im Querschnitt von der Symmetrieebene des Materialsammelbehälters gekreuzt wird. Der Saugstrom (21) wird nach dem Durchlaufen der Sammelkammer (23) in mindestens zwei Teilströme aufgeteilt, die in beidseitig der Symmetrieebene angeordneten Luftkanälen (31) geführt werden. Die Erfindung betrifft auch einen Saugbagger (01) mit einem derartigen Materialsammelbehälter (05).
Abstract:
굴삭 펌프 장치 및 이를 포함하는 파일의 시공 장치가 개시된다. 본 발명의 일 실시예에 따른 굴삭 펌프 장치는, 파일의 내부공간을 개방시키는 개방홀을 통해 내부공간에 삽입 가능하며, 해저저질을 파쇄하여 내부로 유입시키는 굴삭헤드; 상기 굴삭헤드에 연결되어 상기 굴삭헤드의 내부로 유입된 해저저질을 상기 파일의 외부로 배출하는 통로가 되는 배출관; 및 상기 배출관에 펌프압을 제공하여 상기 해저저질이 상기 배출관을 통해 이동시키는 펌프를 포함할 수 있다.
Abstract:
Ein Gerät zum Lösen und Ausheben von Erdreich oder felsigem Untergrund weist ein Saugaggregat (18) und eine an einem Ausleger (3) gehaltene Fräseinrichtung (11) auf. Das Saugaggregat (18) gehört zu einer Saugvorrichtung, die über eine Saugleitung (15) und eine entsprechende in der Nähe des Fräsrotors (12) angeordnete Saugöffnung (21) losgefrästes Material aus dem Fräsbereich absaugt und in einem entsprechenden Volumen, beispielsweise in dem Innenraum (25) einer Baggerschaufel oder dem Innenraum einer Abscheideeinrichtung (19) sammelt. Diese Gerätekombination ermöglicht schnelles und genaues Arbeiten beim Ausheben von Gruben, Gräben oder sonstigen Vertiefungen in Erdreich oder in felsigem Untergrund, auch unter erschwerten Bedingungen.
Abstract:
An economic method and apparatus for ecologically safely removing silt, muck, and sand from a water bottom and for collecting the silt, muck, and sand without destroying the benthos therein into porous containers where the then contained mud and silt can be ecologically positioned where desired to enhance subaquatic environments. The apparatus includes a silt and mud collecting and transfer device that has no moving parts and uses low kinetic energy movement of large masses at low terminal velocity, thereby not endangering the benthos or the porous containers in the transfer process.
Abstract:
A dredging method and a dredging apparatus which can efficiently suck large quantities of sand and gravels deposited on the bottom of dams, rivers, harbours, etc., convey them with much saved energy as possible and can prevent diffusion of turbid water. To accomplish this object, an apparatus includes a case (2, 102) laid down into water in communication with the atmosphere. A suction pipe (3, 105) having a suction portion (7, 106) at the lower end thereof is connected to this case (2, 102). The apparatus further includes a drain pump (12, 124) for draining water inside the case (2, 102) and forming a level difference between the water level inside the case (2, 102) and the external water level and a container (109) removably disposed at an intermediate portion of the suction pipe (3, 105). The sand and gravels are sucked from the suction pipe (3, 105) into the container (109) by the siphon principle due to the level difference between the external water level and the water level inside the container (2, 102), and the container (109) is cut off and the sand and gravels are taken out when the container (109) is full.
Abstract:
A pneumatic extraction head for underwater debris, in particular sand and gravel, comprises a housing (16), a base plate (21) located at the bottom of the housing and forming an inlet opening for the debris, and a flange plate (22) located at the top of the housing for connection with an extraction pipe and a compressed air duct. A joint extending inside the housing between the base plate and the flange plate and surrounding the inlet opening for the debris serves to form an annular space for compressed air between the inner wall of the housing and the outer wall of the joint. Several mutually-spaced outlet openings for the compressed air in the compressed air space are provided in the base plate around the debris inlet opening. These outlet openings are provided with spring-loaded nonreturn valves.
Abstract:
The invention relates to a method for delivering large quantities of under water soil and/or ore bearing soil from long-distance borrow areas to a reclamation site. The method comprises the steps of mooring at least one seagoing transport vessel (1) with a size considerably larger than the size of a dredging vessel (3) and adapted to receive a large quantity of soil in the vicinity of the at least one borrow area, providing at least one dredging vessel that dredges soil at the at least one borrow area and transports it to the transport vessel, loading the soil into a buffering vessel (4) or into the transport vessel (1) directly, transporting the soil in a transportable state to the long distance reclamation site with the aid of the transport vessel, mooring the transport vessel in the reclamation site, and unloading the soil from the transport vessel to the reclamation site.
Abstract:
This invention relates to dredgers for removing sand, silt and like material from the river or sea bed and has application, for example to clearing wrecks, and providing trenches in which, for example, pipelines may be laid. There is described a dredging apparatus comprising a body (11) mounting first thrust means (24, 74, 75) to direct, in use, a wash of water downwards towards an area of seabed or the like characterised in that the dredging apparatus includes further thrust means (44, 55, 58, 59, 77, 78) to maintain the body of the apparatus above the seabed and to propel the body through the water.
Abstract:
A method for extracting and grading or sizing granular material, such as sand, gravel or a mixture thereof, from a volume of untouched ground (23), comprises spraying a liquid into the ground, resulting in a fluidized state (24) in the said ground, in which state granular material with a relatively high relative density (29) and/or relatively large dimensions moves downwards, and granular material with a relatively low relative density and/or relatively small dimensions moves upwards, in such a manner that a layered state is obtained, sucking out the layer of material with a specific relative density and/or size, and feeding this material which has been sucked out to a grading device or sizing device.