Reclamation area ultra-deep concrete diaphragm wall structure and construction method thereof

A construction method and a technology for connecting walls to ground, which are applied in basic structure engineering, sheet pile walls, buildings, etc., can solve the problems of high construction cost, long period, and difficult earthwork excavation, so as to avoid water leakage in the later stage and ensure socket connection. Width, the effect of increasing construction efficiency
CN110512593AInactive Publication Date: 2019-11-29CHINA CONSTR FIRST BUILDING GRP CORP LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA CONSTR FIRST BUILDING GRP CORP LTD
Publication Date
2019-11-29
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a reclamation area ultra-deep concrete diaphragm wall structure and a construction method thereof. The concrete diaphragm wall structure is in a ring shape, the concrete diaphragm wall structure comprises I type concrete diaphragm walls and II type concrete diaphragm walls which are arranged at intervals, the I type concrete diaphragm walls comprise I type groove sections,reinforcement cages arranged in the I type groove sections and cast-in-situ concrete, and the II type concrete diaphragm walls comprise II type groove sections, reinforcement cages arranged in the IItype groove sections and cast-in-situ concrete. Groove grasping technology construction can be conducted in advance, the construction main line time is not occupied, the construction efficiency is greatly improved, and the construction time is shortened. A reclamation area belongs to soft soil ground, soil reinforcement is conducted by using three-axis mixing before concrete diaphragm wall construction. Perpendicularity is well controlled, the width of sleeve connection is guaranteed, and later stage leakage is avoided. The formed concrete diaphragm wall structure is firm and durable, the safety level of a foundation pit support structure is the first level, and the importance factor is 1.1. The service life of the foundation pit temporary support structure is designed to be two years, andthe service life of the foundation pit support structure for permanent using is 50 years.
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Description

technical field

[0001] The invention relates to the field of ground connection wall construction, in particular to an ultra-deep ground connection wall structure in a sea reclamation area and a construction method thereof. Background technique

[0002] The geological conditions of the reclamation area are complex, the ground wall structure penetrates into the rock (slightly weathered) reaches 15m-30m, and the maximum strength of the rock sample reaches 90Mpa. How to choose the appropriate mechanical equipment and arrange the flow section reasonably are issues that must be considered during construction. The main problems existing in the ultra-deep ground connecting wall structure in the reclamation area are: first, there are no construction samples that can be directly referred to, and the construction period is limited; second, the soil conditions are complex, the depth is large, and the earthwork excavation is difficult; third, The verticality is not easy to control; fourt...

Claims

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