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Construction method for reinforcement and seepage prevention of deep sandy gravel foundation

A foundation reinforcement and construction method technology, which is applied in the direction of foundation structure engineering, construction, sheet pile walls, etc., can solve the problems of low economy and high cost, and achieve the effect of high compressive strength and obvious economic benefits

Active Publication Date: 2016-02-24
TIBET AGRI & ANIMAL HUSBANDRY COLLEGE
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Problems solved by technology

The pile foundations are basically as deep as 100 meters during construction, so the cost is high and not very economical

Method used

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  • Construction method for reinforcement and seepage prevention of deep sandy gravel foundation
  • Construction method for reinforcement and seepage prevention of deep sandy gravel foundation
  • Construction method for reinforcement and seepage prevention of deep sandy gravel foundation

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Embodiment 1

[0023] Such as Figure 1~3 As shown, the construction method for the reinforcement and anti-seepage of the deep sand and pebble foundation in Tibet is mainly through pouring cut-off walls 1 on both sides of the foundation treatment and arranging grouting holes 3 in the sand and pebble foundation 2 contained in the two cut-off walls 1 , and then pour the cement slurry. Because the cement slurry is poured into the sand and pebble foundation contained in the anti-seepage wall, sand and pebble are natural materials, and after solidifying with the cement slurry, it becomes natural concrete. The concrete has high compressive strength and can withstand large upper parts. load. The cost of pouring cement slurry is far lower than the cost of pile formation, so its economic benefits are obvious. The reinforced concrete cut-off walls on both sides have obvious anti-seepage effect, and the sand and pebbles in the middle will become concrete after solidification, which also has a certain...

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Abstract

The invention discloses a technology and construction method for reinforcement and seepage prevention treatment of a deep sandy gravel foundation. Reinforced concrete diaphragm walls are arranged on the two sides of the axis of the treated foundation, cement slurry is poured into the sandy gravel foundation which is located between the diaphragm walls, after maintenance for a certain period, sandy gravels are coagulated to form an artificial concrete foundation, and therefore the purposes of reinforcement and seepage prevention treatment of the deep sandy gravel foundation are achieved.

Description

technical field [0001] The invention relates to a construction method for reinforcing and preventing seepage of a deep sand and pebble foundation, and belongs to the field of water conservancy and hydropower engineering. Background technique [0002] As the country attaches great importance to Tibet's social and economic development, various infrastructure constructions are in full swing, such as the rapid development of transportation, municipal and water conservancy and hydropower projects. As the hydropower development and construction of clean and renewable energy, Tibet has successively built Zhikong Hydropower Station (installed capacity of 100,000 KW), Xueka Hydropower Station (installed capacity of 40,000 KW), Laohuzui Hydropower Station (installed capacity of 102,000 KW), Dobu Power Station (installed capacity: 100,000 KW) and Tibet's largest Zangmu Power Station (installed capacity: 510,000 KW). As of December 2010, more than 500 large and small hydropower stati...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D5/18
CPCE02D5/18
Inventor 王培清黄毅于海洋陈东东何强叶文武
Owner TIBET AGRI & ANIMAL HUSBANDRY COLLEGE
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