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Method for submerging and guiding structures

A structure and relative position technology, applied to underwater structures, infrastructure engineering, measuring devices, etc., can solve problems such as large loads and difficult to calculate the distance of huge caissons

Inactive Publication Date: 2015-08-26
AOMI CONSTR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In this method, if the water is relatively deep, the control tower and the like will also become longer, and it will be difficult for divers to calculate the distance of the huge caisson, and the load will be large, so it will be difficult to perform accurate calculations.

Method used

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  • Method for submerging and guiding structures

Examples

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Embodiment

[0030] figure 1 It is a front view which schematically shows the workboat of Example 1 explaining the embodiment of this invention, the structure which was installed, a new structure, etc.

[0031] exist figure 1 In this case, a pair of workboats 12A, 12B floating on the sea surface 11 pass a newly joined caisson 15 as a new structure through the set caisson 14, which is a set structure, which has been settled on the seabed 13. The cable 17 that winch 16,16 discharges and sends respectively hangs down, and is transported to the construction site. In addition, if the new caisson 15 is moved to a predetermined position, while calculating the distance between the installed caisson 14 and the new caisson 15, the cable 17 is extended, lowered to the seabed 13, and the new caisson 14 is guided relative to the installed caisson 14. For the caisson 15 , the new caisson 15 is settled and installed at an adjacent position, and then the installed caisson 14 and the new caisson 15 are f...

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Abstract

[Problem] To provide a method for submerging and guiding structures that can easily and precisely survey, in a short time, the location of a structure or a work fixture that is underwater from a distant operation ship by a wireless method that does not use cables, identify, in real time, the positional relationship between an existing structure and a new structure, and submerge and set a new structure by guiding to a prescribed location. [Solution] Distance data and depth data from measurements, by way of a pair of transponders (T1, T2) disposed on an existing structure or a pair of transponders (T3, T4) disposed on an new structure, of distance and depth between the transponders (T1, T2, T3, T4) is acquired by a computer (PC) by a wireless method; the computer (PC) identifies, in real time, the position of the new structure underwater from the data; and the new structure is submerged and set with a high degree of precision by being guided with respect to the existing structure.

Description

technical field [0001] The present invention relates to a method for guiding the settlement of a structure, and in particular to the following method for guiding the settlement of a structure, which is used to measure and measure the installed structure and the newly settled structure that have sunk in water. The relative positional relationship of the structure, relative to the already set structure, enables the new structure to settle in an approaching and guiding manner. Background technique [0002] This technique is used, for example, at a construction site for constructing a tunnel under the sea, or for a construction site where a block forming a fishing reef or the like is submerged into water. [0003] For example, in the construction of a subsea tunnel, a plurality of caissons will be constructed in advance by construction on land, and they will be transported to the site for construction. Each caisson itself is a huge structure. At the construction site, the caiss...

Claims

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Application Information

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IPC IPC(8): E02D29/073G01C15/00
CPCE02D29/073G01C13/008G01C15/00
Inventor 冲山祯雄吉原到榊原雅人佐藤孝一村上英幸
Owner AOMI CONSTR CO LTD
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