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Retaining wall structure of Y-shaped rock-inlaid trough section of diaphgram wall and trough-forming construction method thereof

A technology for underground diaphragm wall and grooved construction, which is applied in infrastructure engineering, sheet pile walls, buildings, etc., can solve problems such as inability to adapt to the corners of grooves, reduce construction risks, improve stability, and ensure smooth construction. Effect

Inactive Publication Date: 2010-10-20
CCCC SECOND HARBOR ENG
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  • Abstract
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  • Claims
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Problems solved by technology

However, the above-mentioned construction method cannot be adapted to the construction of "Y"-shaped groove sections with many corners and easy hole collapse at the corners.

Method used

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  • Retaining wall structure of Y-shaped rock-inlaid trough section of diaphgram wall and trough-forming construction method thereof
  • Retaining wall structure of Y-shaped rock-inlaid trough section of diaphgram wall and trough-forming construction method thereof
  • Retaining wall structure of Y-shaped rock-inlaid trough section of diaphgram wall and trough-forming construction method thereof

Examples

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Embodiment Construction

[0012] The Fourth Nanjing Yangtze River Bridge adopts a double-tower three-span suspension bridge, and the south anchorage foundation adopts a shaft-type underground diaphragm wall structure. It consists of a partition wall. The thickness of the underground diaphragm wall is 1.50m, the total depth is 40.00m~50.00m, and it is embedded in moderately weathered sandstone for about 3.00m. The construction groove section of the underground diaphragm wall includes two Y-shaped special-shaped groove sections, which are located at the junction of the partition wall and the outer wall.

[0013] Such as figure 1 As shown, three "V" shaped cement-soil deep-layer mixing pile walls 10, 20, 30, each cement-soil deep-layer mixing pile is in the shape of "8", are connected to each other to form a pile wall. Three "V"-shaped cement-soil deep-layer mixing pile walls constitute a "Y"-shaped groove section profile; wherein, the corners of cement-soil deep-layer mixing pile walls 20 and 30 (that ...

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Abstract

The invention discloses a retaining wall structure of a Y-shaped rock-inlaid trough section of a diaphgram wall and a trough-forming construction method thereof. The retaining wall structure comprises a cement soil deep-stirring piling wall on which a reinforced concrete guide wall is arranged. The retaining wall structure is characterized in that the cement soil deep-stirring piling wall comprises three V-shaped cement soil deep-stirring piling walls forming a Y-shaped cement soil deep-stirring piling wall, and two vertical corners of the Y-shaped cement soil deep-stirring piling wall are provided with plastic concrete piles connected with cement soil deep-stirring piles at both sides, thereby the retaining wall structure of the Y-shaped rock-inlaid trough section is formed. The Y-shaped rock-inlaid trough section of the diaphgram wall adopts a five-milling trough-forming construction method. The method ensures the smooth construction of the diaphgram wall and avoids the phenomenon that the traditional construction and structure generate hole collapse.

Description

technical field [0001] The invention belongs to building foundation construction technology, in particular to a construction technology of an underground continuous wall groove section. Background technique [0002] At present, in the construction of underground diaphragm walls at home and abroad, the groove sections of underground diaphragm walls generally adopt rectangular groove sections. Due to the regular shape of the slot section, the weak covering layer around the rectangular slot hole can be treated by conventional cement-soil deep-layer mixing pile walling technology, which can ensure the stability of the slot hole during the construction of the slot, such as the south branch of the Runyang Yangtze River Highway Bridge The underground diaphragm wall foundation of the north anchorage of the suspension bridge, the underground diaphragm wall foundation of the south anchorage of the Yangluo Yangtze River Bridge, etc. But above-mentioned construction method can not be a...

Claims

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Application Information

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IPC IPC(8): E02D5/20
Inventor 何超然李宗平钟永新田雨金高飞李有为奚林胜
Owner CCCC SECOND HARBOR ENG
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