Underwater geotechnical cloth lapping and pavement method

A laying method and geotextile technology, applied in geotextiles, soil protection, infrastructure engineering and other directions, can solve problems such as being difficult to make up for effectively, and achieve the effects of small errors, accurate positioning and high efficiency

Active Publication Date: 2015-05-27
宁波高新区围海工程技术开发有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

And after discovering this problem, it is difficult to make u...

Method used

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  • Underwater geotechnical cloth lapping and pavement method
  • Underwater geotechnical cloth lapping and pavement method
  • Underwater geotechnical cloth lapping and pavement method

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Embodiment 1

[0023] Example 1: A certain seawall project is a well-developed and largest tidal flat resource in the estuary area of ​​an inland river. Over the past hundred years, it has been slowly silted and extended, with deep silt, silty clay and fine silty sandy soil deposited. Now the beach is 16.5km long, 4.5km wide, with a slope of 0.4-10.68‰, and 3.2% above the average tide level. 10,000 mu, others are below the average tide level. The total length of the seawall embankment is about 18.5km, and the total cost is 660 million. Concrete special-shaped block body armor structure. The embankment foundation treatment adopts the composite reinforcement method of geotextile plus crushed stone cushion and plastic drainage, combined with the ballast treatment method. The embankment foundation of this project adopts geotextile laying area with a width of 36-98m. The maximum water depth in the laying area is 18.6m, the flow velocity is 2.6m / s, and the tidal range is 6.1m. Since the projec...

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Abstract

The invention discloses an underwater geotechnical cloth lapping and pavement method and belongs to the coastal engineering construction technology. Due to the complexity of a soft foundation and the imbalanced bearing force of the foundation, the underwater geotechnical cloth always causes ballast drifting, and especially, the lapped position of two pieces of geotechnical cloth always has disjoint phenomenon; the potential hazards on quality is generated as the mentioned problems cannot be effectively solved in the sequent project. The pavement method provided by the invention comprises a GPS positioning method, an industrial control monitor real-time marking method, a barbed hook steel rope method and a gravel bag method; as the gravel bags are placed accurately, the floating, curling and drifting of the geotechnical cloth are effectively prevented, the underwater geotechnical cloth is paved smoothly and without creases, the edges of the cloth are hooked and linked to one with one another, and the working efficiency and the pavement quality are improved; the difficult problem of lapping the underwater geotechnical cloth is well solved, and the method has the characteristics that the positioning is accurate, the errors are small, the speed is high, and the efficiency is high.

Description

technical field [0001] The invention relates to underwater laying of geotextiles and belongs to the construction technology of coastal engineering buildings. Background technique [0002] Geotextile, also known as geotextile, is a permeable geosynthetic material made of synthetic fibers through needle punching or weaving. Geotextiles have excellent functions of filtration, drainage, isolation, reinforcement, anti-seepage, and protection. They are light in weight, high in tensile strength, good in permeability, high temperature resistance, freezing resistance, aging resistance, and corrosion resistance. In soft foundation seawall engineering, geotextiles can effectively isolate materials with different physical properties, so that two or more materials are not mixed, and maintain the overall structure and function of materials; effectively diffuse, transfer or decompose concentrated stress, Reduce the uneven settlement of the foundation; effectively increase the tensile stre...

Claims

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Application Information

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IPC IPC(8): E02D3/00
CPCE02D15/10E02D2300/0085
Inventor 陶松垒王掌权俞元洪滕一峰吴良勇叶方蔚
Owner 宁波高新区围海工程技术开发有限公司
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