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Construction method of sinking mattress along water current for river waterway regulation

A construction method and channel technology, applied in river regulation and other directions, can solve problems such as large loads, higher structural strength requirements of hulls and laying mechanisms, and higher stability requirements of laying ships, so as to ensure construction safety and construction quality, guarantee The effect of construction quality

Active Publication Date: 2010-11-10
长江重庆航道工程局
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

First of all, since the ship is moored across the river, the hull and row body will block water in a large area and bear huge hydrodynamic pressure, which brings certain difficulties to the construction operation. The main manifestations are: ① higher requirements are put forward for the arrangement strength; ②Add greater load to the anchor cable facilities of the laying ship; ③Higher requirements for the stability of the laying ship; ④Higher requirements for the structural strength of the hull and the laying mechanism; The phenomenon of indentation (horizontal narrowing) with different degrees must be studied and solved

Method used

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  • Construction method of sinking mattress along water current for river waterway regulation
  • Construction method of sinking mattress along water current for river waterway regulation
  • Construction method of sinking mattress along water current for river waterway regulation

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Embodiment Construction

[0023] figure 1 It is a construction process flow chart of the present invention; figure 2 It is a schematic diagram of the construction site of the present invention, as shown in the figure: the construction method of sinking and discharging along the flow of river waterway regulation in this embodiment includes the following steps:

[0024] a) Carry out underwater mapping in the sinking and drainage area, and remove the protruding and abnormal objects, so as to ensure that the soft drainage will not be damaged during the construction process;

[0025] b) Record the coordinate values ​​of the characteristic points measured by underwater mapping, and draw up the sinking and drainage trajectory along the current according to the coordinate values, and provide construction reference through the sinking and drainage trajectory, which is conducive to the smooth progress of the sinking and drainage construction;

[0026] c) Make the hull of the sinking and discharging ship 1 perp...

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Abstract

The invention discloses a construction method of sinking a mattress along water current for river waterway regulation, which comprises the steps of mapping underground in a mattress-sinking region, drawing up the trajectory of sinking the mattress along the water current, positioning a mattress-sinking ship, fabricating a soft mattress, sinking the mattress and the like, thereby creating the beginning of mattress-sinking construction along the water current for the bottom protection-based concrete block soft mattress; in addition, the construction method can carry out accurate and effective control on a geotextiles-laying vessel and ensure the construction safety and the construction quality by reasonably setting a ship anchor of the geotextiles-laying vessel; additionally, the construction method can also powerfully protect the construction quality by carrying out precise positioning on a mattress head and a mattress tail of the soft mattress, carrying out real-time tracking on the geotextiles-laying vessel, carrying out comparison and analysis and adjusting the construction deviation in time.

Description

technical field [0001] The invention relates to a construction method for river channel regulation, in particular to a downstream sinking and drainage construction method for river channel regulation. Background technique [0002] Since the Yangtze River waterway regulation was carried out in the last century, the scope of the Yangtze River waterway regulation is mostly limited to large areas, shallow waters, and relatively flat riverbed areas. From design to construction, they are all implemented according to the sinking and drainage construction method in the vertical direction of water flow. Up to now, the construction of inland river laying ships is also designed and constructed according to the technical requirements of sinking and discharging in the direction of vertical water flow. Many years of construction practice have accumulated a lot of experience in sinking and discharging in the direction of vertical water flow. However, as far as the effect of waterway regula...

Claims

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Application Information

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IPC IPC(8): E02B3/02
Inventor 张利洪谢盛开李德华刘长全罗宏谢达建卞卫东贺勇李涛
Owner 长江重庆航道工程局
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