Portal type double-row pile system of rear row pile anchor and construction method of portal type double-row pile system

A construction method and technology for rear row piles, which are applied in excavation, sheet pile wall, foundation structure engineering, etc., can solve problems such as increase in engineering cost, and achieve the effect of controlling engineering cost, facilitating temporary emergency reinforcement, and reducing engineering cost.
CN112796326APending Publication Date: 2021-05-14浙江华展研究设计院股份有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
浙江华展研究设计院股份有限公司
Publication Date
2021-05-14

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Abstract

The invention discloses a portal type double-row pile system of a rear row pile anchor and a construction method of the portal type double-row pile system. The portal type double-row pile system comprises a front row pile and a rear row pile; the anchor cables are constructed through a high-pressure jet grouting construction process and arranged between every two adjacent piles in the rear row pile; a soil body between the front row pile and the rear row pile is reinforced through high-pressure jet grouting piles; the front row pile and the rear row pile are constructed, and the pile tops are connected through a rigid frame beam; and excavation is conducted to the pit bottom, and a main body structure is constructed. According to the portal type double-row pile system of the rear row pile anchor and the construction method of the portal type double-row pile system, the anti-overturning stability of portal type double-row piles can be improved easily, and the engineering cost is reduced.
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Description

Technical field

[0001] The present invention relates to the field of foundation pit support, and in particular to a rear roster anchor, a rear-row-type two-row pile system and a construction method thereof.Background technique

[0002] With the acceleration of urban construction, the land resources are increasing, scarce, the surrounding environment has become more and more complex, and the foundation pit support project faces more severe tests. At present, in the foundation pit project, the commonly used support form has pile anchor support, pile support. Under some special conditions, for the protection of the underground space and the surrounding environment, there is currently more and more strict on the pile anchor support structure, and many local restrictions have the anchor cable within the red line of the building, so more support is only Pile support can be used. However, for the underground excavation of large space, the pile support not only affects the construction of earth e...

Claims

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