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Vacuum preloading reinforcement construction method suitable for underwater silt environment

A construction method and environmental technology, applied in geotextiles, soil protection, infrastructure engineering, etc., can solve problems such as large amount of silt excavation and filling, ecological environment pollution, and impact on marine aquaculture, and achieve large excavation workload, The effect of high project cost and shortened construction period

Active Publication Date: 2017-04-12
CCCC FOURTH HARBOR ENG INST +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] For the traditional filling method construction, the excavation and filling volume of silt is large, and it will cause ecological environment pollution, and may also have a serious impact on the marine aquaculture industry

Method used

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  • Vacuum preloading reinforcement construction method suitable for underwater silt environment
  • Vacuum preloading reinforcement construction method suitable for underwater silt environment
  • Vacuum preloading reinforcement construction method suitable for underwater silt environment

Examples

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Embodiment Construction

[0060] The present invention is implemented according to the following steps:

[0061] (1) Remove and level the sundries on the surface of the soft foundation 19 to be reinforced that affect the construction work; the sundries here refer to sharp and massive objects.

[0062] The towing ship 7, the sand carrier 13 and the laying ship 14 are positioned by the GPS system.

[0063] (2) Prepare materials to make the sand quilt soft body row 17, and the sand quilt soft body row is spliced ​​into a whole by a plurality of filled sand bags respectively from longitudinal and transverse sequential connections and filled with mortar. The filling sand bag is sewn with upper and lower layers of geosynthetic material 1, and a plurality of longitudinal partition walls are evenly spaced between the upper and lower layers of geosynthetic material 1 to divide the inner cavity of the filling sand bag into a plurality of longitudinal compartments 2; A plurality of filling cuffs 5 are evenly arr...

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Abstract

The invention discloses a vacuum preloading reinforcement construction method applicable to an underwater silt environment. The vacuum preloading reinforcement construction method includes the following steps that a first layer of sand cover soft mattress is laid; plugboard construction is conducted; a level discharge pipe line is laid; a second layer of sand cover soft mattress is laid; geo-nonwoven cloth and a sealing membrane are laid; around reinforcement area sealing system construction is conducted; vacuumizing is conducted until dead load is finished. The vacuum preloading reinforcement construction method applicable to the underwater silt environment effectively solves the related problems encountered in engineering constructions of an inland river, an intertidal belt and an abyssal region, such as large excavation workload, a long construction period and high building cost of projects in an underwater excavation work and a bank slope treatment project of a long-piled wharf, large using amount of stones, a long construction period and high building cost of projects in reinforcing breakwater foundation construction adopting methods of overwater throwing-filling rock blocks, land pushing throwing-filling breakwater core rocks and explosion discharging slit backfilling rock blocks, and large excavation and filling amount in a traditional replacement method.

Description

technical field [0001] The invention relates to the technical field of foundation treatment for fixed buildings such as inland river engineering, port engineering, and land reclamation engineering, and specifically relates to the engineering technology of soft soil foundation reinforcement for inland waterways, coastal intertidal zones, and seabeds. Background technique [0002] According to the "National Inland Waterway and Port Layout Plan" (2007-2020), high-level inland waterways and major ports will be the focus of inland river construction in the future. In addition, the state has also intensively approved the marine functional zoning of Tianjin, Hebei, Liaoning, Jiangsu, Zhejiang, Fujian, Shandong, Guangxi and other 8 provinces and cities. By 2020, Hebei, Tianjin, Jiangsu, Zhejiang, Guangdong and other places plan to build land from the sea The total area is more than 3000 square kilometers. Therefore, inland rivers and coastal tidal flats are further developed, espec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D3/10
CPCE02D3/10E02D3/103E02D15/08E02D2250/0053E02D2250/0061E02D2300/0085
Inventor 鲍树峰杨福麟陈伟东周琦李燕邱青长林军华张波云李榕波郑坚昭谢荣星阮涛张建喜郑广
Owner CCCC FOURTH HARBOR ENG INST
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