Closure gap bed protection method by using nylon net bag stone ballast

A technology of net stone and nylon net, which is applied in coastline protection, water conservancy engineering, sea area engineering, etc., can solve the problems of high-strength low-carbon steel wire net bag broken wire rate, unsatisfactory protection effect of bottom protection, low efficacy and other problems, and achieve the production process Simple and fast, convenient lifting and installation operation, and the effect of reducing the damage rate

Inactive Publication Date: 2012-10-24
CCCC SHANGHAI DREDGING +2
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  • Abstract
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Problems solved by technology

[0003] The invention provides a method for protecting the bottom of a dragon mouth with stone ballast in a nylon net to solve the problems of high w

Method used

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  • Closure gap bed protection method by using nylon net bag stone ballast
  • Closure gap bed protection method by using nylon net bag stone ballast
  • Closure gap bed protection method by using nylon net bag stone ballast

Examples

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[0009] image 3 Shows the construction process flow of the dragon mouth bottom protection method of the nylon net bag ballast of the present invention: the mesh side length of the nylon net bag is 20cm, and the φ16mm polypropylene nylon rope is used (see attached figure 1 2) Carry out the weaving of the net bag, the finished product is a circle with a radius of 7m, and the edge of the nylon net bag is made of φ22mm polypropylene nylon rope (see attached figure 1 1) One week in series; the filling of the block stone is to place the nylon net bag at 40m 3 Fill the barrels in the mine site with blocks. Select blocks with a particle size larger than the side length of the nylon net bag. A single nylon net bag is filled with 10t. The nylon net bag is shipped and transferred to the construction site. After filling, it is transported to the construction site by a transport ship, and then transferred to the deck barge with a crane ship and then transported to the construction floating cr...

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Abstract

The invention discloses a closure gap bed protection method by using nylon net bag stone ballast and relates to a reservoir or coast reclamation work closure gap ballast method. A nylon net bag stone filling method is adopted. After nylon net bag stones are shipped and transferred, the nylon net bag stones are lifted and placed through a construction vessel. The closure gap bed protection method by using nylon net bag stone ballast is characterized in that the length of each side of each mesh of each nylon net bag is 20cm, phi 16mm polypropylene nylon ropes are used for knitting a circle with radius being 7m and the edge of the circle is serially connected for a turn by using phi 22mm polypropylene nylon ropes; the nylon net bag is placed in a 40m<3> filling bucket for filling block stones, the grain size of the block stones is required to be larger than the length of each side of the mesh of the nylon net bag and 10t of block stones are filled into each nylon net bag; before underground lifting and placing, six nylon net bags with 10t stones respectively are combined into a group of nylon net bags with 60t stones, and adjacent nylon net bags are serially and integrally connected by using phi 16mm polypropylene nylon ropes; and the construction vessel conducts uncoupling for underground placing through positioning according to the determined position, and during underground placing, the nylon net bags are closely placed in a staggered way to ensure close contact.

Description

technical field [0001] The invention relates to a bottom protection and ballasting method for the Longkou section of a reservoir or sea reclamation project during the protection period and the closure period. Background technique [0002] One of the most important structures in the construction of reservoirs in tidal estuaries or coastal land reclamation projects is the bottom protection of Longkou. Currently, geotextile bottom protection is basically adopted for sea reclamation and land reclamation in China at present. The main feature of this model is that the area of ​​the embankment is small, and the water flow and velocity They are relatively small, and the requirements for bottom protection protection are not high. The width of the dragon mouth is generally not more than 300m, and the difficulty of closing the dragon mouth is relatively easy; domestic reservoir dam closures generally use diversion channels to divert part of the river water, reduce the flow rate and flo...

Claims

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Application Information

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IPC IPC(8): E02B7/00
Inventor 刘若元楼启为刘华锋张学军陆晓如徐波赵国权王晓鹏叶源新
Owner CCCC SHANGHAI DREDGING
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