Underground Diaphragm Wall Reinforced Cage Structure and Its Construction Method

Abstract

The invention discloses a reinforcement cage structure for an underground diaphragm wall and a construction method thereof. The reinforcement cage structure for an underground diaphragm wall includes several reinforcement cage units (1) and several connection structures (21) from bottom to top; the reinforcement The cage units (1) are connected through the connecting structure (21); the connecting structure (21) includes two connecting steel plates (2) and two connecting splints (3); the two connecting steel plates ( 2) respectively welded to the connecting ends between the reinforcement cage units (1); the two connecting splints (3) are located on both sides of the plane of the two connecting steel plates (2), and the two connecting splints ( 3) Fixed connection with the two connecting steel plates (2). The invention improves the hoisting efficiency and safety of the reinforcement cage, reduces the use of longitudinal and transverse reinforcement trusses, and realizes a reinforcement cage structure with reasonable structure, reliable connection and excellent structural performance.

Description

technical field [0001] The invention relates to the field of design and construction of an underground diaphragm wall in building foundation pit engineering, in particular to an underground diaphragm wall reinforcement cage structure and a construction method thereof. Background technique [0002] Due to its high rigidity, the underground diaphragm wall has the advantage of having little impact on the soil and structures around the foundation pit, and can be used as a retaining wall and the basement exterior wall of the main structure. The construction steps of the cast-in-place underground diaphragm wall in the trough section can be divided into guide wall construction, steel cage making, mud making, trough setting out, trough forming construction, hanging and placing the steel cage, underwater concrete pouring, and trough section joint treatment, etc. According to the particularity of functional requirements and geological conditions, the manufacture and hoisting of the re...

AI Technical Summary

Problems solved by technology

The segmented hoisting method reduces the requirement for the clearance of the crane, and the weight of the hoisted steel cage is small, but the connection of the segmented steel cage is the difficulty of its construction

Among them, the straight threaded sleeve connection of the steel cage is prone to difficulty in the butt joint of the steel bars; the welding seam connection is heavy and the construction quality is difficult to guarantee; the connection form of the binding is low in connection strength, and the steel cage is lowered for a long time, which is not conducive to ensuring the groove wall. Verticality

Images