摘要:
The present invention relates to a method for arranging at least one duct (3) in a ground. The method is distinguished by above ground assembly of the duct; bringing the ground into plastic state; and forcing the duct into the ground. The ground is subjected to vibration in order to effect the transition to the plastic state thereof. The method is also distinguished by placing piles (4) and fixing the duct (3) to the piles prior to bringing the ground into the plastic state; and by subsequently forcing the piles with the duct fixed thereto into the ground. The present invention further relates to a system of ducts in a ground which comprises at least one type of duct, wherein piles fixed to the ducts are arranged in the ground.
摘要:
An overflow dam for maintaining a first water level at a first side of the dam, said first water level being higher than the second water level at the second side of the dam, wherein water from the first side of the dam may flow over the dam to the second side of the dam, wherein said dam comprises an element extending at the second side of the dam, said element having an upper surface which is at approximately the same height as said second water level, such, that said water flowing over said dam lands on said element.
摘要:
The invention relates to a train (1) which forms a transport device displaceable along a fixed track (3), comprising a frame with a drive; at least one bogie (6) with a flat sole (10); and at least one supply of a liquid which is suitable for pouring the liquid over the track (3), wherein at speed of the train higher than a threshold value at least a part of the sole (10) floats over a film created by liquid. The supply is adapted to carry the liquid onto the track (3) in front of the sole (10) in the direction of movement of the train (1) and the sole (10) is positioned inclining upward on the front side in the direction of movement. The invention also relates to a track (3) for an above described train (1) which comprises at least one platform extending in horizontal direction. The platform is coated with a levelling material, wherein an upper surface of the track has a very high degree of smoothness with very small height differences.
摘要:
The invention relates to a ventilation system for a covered roadway section (1), said system comprising means (6a,6b) to produce an air flow in the covered roadway section (1). The means (6a,6b) are arranged so that they can produce an air flow (L) counter to the traffic direction (R), such that the air flow realized in this way in combination with the air flow generated by the traffic on balance results in there being a reduced outflow of air from the traffic exit of the roadway section (1).
摘要:
The invention relates to a train (1) which forms a transport device displaceable along a fixed track (3), comprising a frame with a drive; at least one bogie (6) with a flat sole (10); and at least one supply of a liquid which is suitable for pouring the liquid over the track (3), wherein at speed of the train higher than a threshold value at least a part of the sole (10) floats over a film created by liquid. The supply is adapted to carry the liquid onto the track (3) in front of the sole (10) in the direction of movement of the train (1) and the sole (10) is positioned inclining upward on the front side in the direction of movement. The invention also relates to a track (3) for an above described train (1) which comprises at least one platform extending in horizontal direction. The platform is coated with a levelling material, wherein an upper surface of the track has a very high degree of smoothness with very small height differences.