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Deformed steel used for SMW construction method and construction method using deformed steel

A construction method and special-shaped steel technology, which is applied in the direction of foundation structure engineering, construction, sheet pile walls, etc., can solve the problems such as difficulty in pulling out shaped steel, affecting support strength, material waste, etc., and achieve the goal of reducing impact and ensuring support strength Effect

Active Publication Date: 2017-12-15
GUANGZHOU ARCHITECTURE SCI RES INSTNEW TECH DEV CENT +1
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0005] However, in actual engineering, the traditional extraction method is easy to leave pores on the stirring pile body, which seriously affects the support strength, and some section steel is even difficult to pull out, resulting in waste of materials

Method used

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  • Deformed steel used for SMW construction method and construction method using deformed steel
  • Deformed steel used for SMW construction method and construction method using deformed steel
  • Deformed steel used for SMW construction method and construction method using deformed steel

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Embodiment Construction

[0032] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0033] like Figure 1 ~ Figure 3 As shown, the present invention provides a special-shaped steel for SMW construction method, the shape of the cross section of one end of the special-shaped steel 1 is X-shaped, and the X-shaped intersection of the special-shaped steel 1 is provided with a special-shaped steel for grouting and pulling out the special-shaped steel. 1 through hole 11.

[0034] The special-shaped steel 1 adopting this structure utilizes the through hole 11, so that the extraction device 2 can block the special-shaped steel 1, which is beneficial to the recovery of the special-shaped steel 1; Pores are left in the center, and the through holes 11 of the...

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Abstract

The invention discloses deformed steel used for an SMW construction method. The cross section of one end of the deformed steel is in an X shape; and the point of intersection of the X shape of the deformed steel is provided with a through hole used for grouting and pulling out of the deformed steel. The invention further correspondingly discloses the construction method using the deformed steel. According to the deformed steel used for the SMW construction method and the construction method using the deformed steel, the deformed steel is easy to pull out and convenient to recycle, a pore reserved in a pile body when the deformed steel is pulled out can be subjected to grouting and backfilling, and the supporting intensity of the structure is ensured.

Description

technical field [0001] The invention belongs to the technical field of underground engineering construction, and in particular relates to a special-shaped steel used in a SMW construction method and a construction method using the special-shaped steel. Background technique [0002] SMW construction method diaphragm wall, which is the abbreviation of Soil Mixing Wall, came out in Japan in 1976 and now accounts for about 50% of the underground diaphragm walls in Japan. Now this construction method has been widely used in many places such as Southeast Asian countries, the United States and France. In recent years, it has also been rapidly promoted in Shanghai, Hangzhou and Nanjing in my country, and has received widespread attention and welcome. [0003] The SMW construction method is to use special multi-axis mixing to drill and cut the soil on the spot. At the same time, inject the cement slurry into the soil at the end of the drill bit. Before the mixture is hardened, inser...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D5/20E02D9/02
CPCE02D5/20E02D9/02E02D2600/20
Inventor 董晓斌杨卓侯明勋季璇
Owner GUANGZHOU ARCHITECTURE SCI RES INSTNEW TECH DEV CENT
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