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Underground continuous wall refining roundness connection structure and construction method thereof

A technology of underground diaphragm wall and connection structure, which is applied in basic structure engineering, excavation, sheet pile wall and other directions to achieve the effect of ensuring accuracy, facilitating subsequent cleaning and construction, and enhancing strength and connection performance.

Active Publication Date: 2021-06-15
CHINA CONSTR FIRST BUILDING GRP CORP LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides an underground diaphragm wall refinement roundness connection structure and its construction method, which is used to solve the roundness of the annular diaphragm wall or the convenience of the ring Technical issues such as construction, fabrication and connection of diaphragm walls, and rapid construction by framing

Method used

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  • Underground continuous wall refining roundness connection structure and construction method thereof
  • Underground continuous wall refining roundness connection structure and construction method thereof
  • Underground continuous wall refining roundness connection structure and construction method thereof

Examples

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Embodiment Construction

[0042] Taking a natural gas storage tank as an example, the underground structure floor of the storage tank is mainly located in medium and slightly weathered conglomerate and quartz porphyry. The 1.5m thick underground diaphragm wall is adopted, the depth is 53~61m, the concrete design strength grade is C45, and the impermeability grade is P12. Such as Figure 1 to Figure 5 As shown, the refined roundness connection structure of the underground diaphragm wall includes type I connecting wall 1, type II connecting wall 2 connected between adjacent type I connecting walls 1, and type I connecting wall 1 and type II connecting wall The casing milling section 4 arranged between the connecting walls 2; the type I connecting wall 1, the type II connecting wall 2 and the casing milling section 4 are connected in a ring shape, and the inside of the ring is the excavation surface 3; the type I connecting wall 1 and the type II connecting wall The 2 connecting walls are 36 pieces respe...

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Abstract

The invention discloses an underground continuous wall refining roundness connection structure and a construction method thereof. The connection structure comprises I-type connection walls, II-type connection walls connected between the adjacent I-type connection walls, and casing milling sections connected between the I-type connection walls and the II-type connection walls; the I-type connection walls, the II-type connection walls and the casing milling sections are connected to form an annular shape, and an excavation face is in the annular shape; each I-type connection wall comprises an I-type separating and connecting slot connected with the corresponding II-type connection wall, an I-type separating and rotating slot connected to the outer end of the I-type separating and connecting slot and an I-type separating and smoothing slot connected to the outer end of the I-type separating and rotating slot; and the center lines of the I-type separating and connecting slots and the I-type separating and rotating slots are connected in an included angle mode. According to the invention, the I-type connection walls are arranged in a block division mode, so that the annular structure of the underground continuous wall is guaranteed; the I-type connection walls are excavated in three sections, so that the excavation accuracy is guaranteed; through the arrangement of reinforcing bars in the connection walls, the strength and the connecting performance are favorably enhanced; and through the arrangement of the casing milling sections, mutual fixation of the I-type connection walls and the II-type connection walls is facilitated.

Description

technical field [0001] The invention belongs to the technical field of underground diaphragm walls, and in particular relates to a refined roundness connection structure of an underground diaphragm wall and a construction method thereof. Background technique [0002] The underground diaphragm wall is a wall formed by using a grooving machine on the ground for basic engineering, then placing a steel cage and pouring concrete; effect. It also has the advantages of small construction vibration, high wall rigidity, good integrity, fast construction speed, earth and stone saving, and can be used for deep foundation pit support and reverse construction in dense buildings, so it is widely used. [0003] During the construction of the underground diaphragm wall, especially in the construction of the circular underground diaphragm wall, the conventional method to ensure the roundness is to divide the underground diaphragm wall into I-type grooves and II-type grooves, both of which a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D5/18E02D17/06
CPCE02D5/18E02D17/06
Inventor 孟庆礼程培春陈蕾王子晨陈振旺刘宴伟张晓明张项宁王有发贾鸿鹏
Owner CHINA CONSTR FIRST BUILDING GRP CORP LTD
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