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Construction technology and construction method of anti-corrosion protective layer of concrete foundation in saline soil area

A technology for concrete foundation and construction technology, applied in basic structure engineering, protection devices, buildings, etc., can solve the problems of difficult construction, high engineering cost, complex process, etc., to achieve simple process, prevent backflow and backflow problems, and ensure stable performance. Effect

Active Publication Date: 2018-05-01
CHINA RAILWAY FIRST SURVEY & DESIGN INST GRP +1
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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a construction method and technology for the anti-corrosion protection layer of the concrete foundation of the underground structure in the saline soil area in view of the deficiencies in the above-mentioned prior art. The technical construction of erosion is difficult, the process is complicated, the project cost is high, and the adaptability is narrow

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  • Construction technology and construction method of anti-corrosion protective layer of concrete foundation in saline soil area
  • Construction technology and construction method of anti-corrosion protective layer of concrete foundation in saline soil area
  • Construction technology and construction method of anti-corrosion protective layer of concrete foundation in saline soil area

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Embodiment example

[0090] See Figure 1 to Figure 7 As shown, the concrete foundation anti-corrosion protection layer construction method and technology of the saline soil area proposed by the present invention is applied to the construction of the anti-corrosion protection layer of the cast-in-place pile concrete foundation in the saline soil area, specifically:

[0091] First, prepare wall protection slurry according to the groundwater environment of the construction area:

[0092] In order to ensure the stability and durability of the wall protection slurry in the brine environment, and reduce the preparation cost of the wall protection slurry, the brine in the construction area is specially selected to prepare the wall protection slurry preparation water; the wall protection slurry in the brine environment should at least include bentonite and increase The basic components of wall-protecting mud such as adhesive CMC (sodium carboxymethyl cellulose) can also be targeted to select additives, such a...

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Abstract

The invention provides a construction process and method for an erosion-resistant protective layer of a concrete foundation in a salty soil zone. The construction process comprises the following steps of: carrying out mud wall-protecting treatment before pouring a concrete foundation of an underground structure to form a layer of mud cakes; then, after completing concrete foundation pouring for certain time, pressing erosion-resistant slurry into the periphery of the concrete foundation, wherein the erosion-resistant slurry sufficiently reacts with underground brine and mud, and is solidified to form a stable, compact and uniform protective layer, and the thickness of the protective layer is a bit greater than that of the mud cakes, so that erosion, on the concrete foundation, of the underground brine can be effectively blocked. According to the process and the method provided by the invention, measures are clear, operability is strong, project cost is low, and the concrete erosion-resistant protective layer can be quickly and accurately formed, so that effective protection is formed on the concrete foundation of the underground structure in the salty soil zone.

Description

【Technical Field】 [0001] The invention belongs to the technical field of concrete foundation construction technology, and specifically relates to a construction technology and a construction method of a concrete foundation anti-corrosion protective layer in a saline soil area. 【Background technique】 [0002] With the rapid development of my country's economy, the development and utilization of my country's underground space has entered a stage of rapid development, and a large number of underground structures need to be constructed. However, my country's saline soil has a wide range of distribution, showing a concentrated distribution pattern, mainly in the coastal and northwestern inland areas. The coastal saline soil of underground structures is mainly composed of brine immersed into the soil layer to form chloride salt saline soil with a salt content of not more than 10%. The engineering disease is mainly the corrosive damage of chloride salt; The salinity varies greatly, mai...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D31/06
CPCE02D31/06
Inventor 岳迎九杨少军姚兴刘超姚迪明
Owner CHINA RAILWAY FIRST SURVEY & DESIGN INST GRP
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