High and watery coastal area underground continuous wall connector water stop device

Abstract

The invention belongs to the technical field of foundation pit supporting and relates to a high and watery coastal area underground continuous wall connector water stop device. Continuous wall horizontal ribs are mechanically connected with continuous wall vertical main beams. Steel flower pipes are bond to a first wall reinforcement cage in a lap joint manner. Galvanized sheet iron is installed on the outer side of an I-shaped steel plate. The galvanized sheet iron is welded to pressing bar steel bars in a spot welding manner. The I-shaped steel is connected with the first wall reinforcementcage in a welded manner. A U-shaped stirrup is connected with the single faces of the continuous wall horizontal ribs in a welded manner. Grouting pipes are bond to a second wall reinforcement cage ina lap joint manner. The second wall reinforcement cage is embedded and fixed in an I-shaped steel plate wing plate in a lifting manner. Sand bags are stacked on the outer side of an I-shaped steel plate connector web, and the lower filling height of the sand bags is the height of an underground continuous wall. The high and watery coastal area underground continuous wall connector water stop device is ideal in waterproof effect, concrete can be effectively prevented from streaming around, and due to the arrangement of the steel flower pipes, the water stop effect at the seam position is ensured.

Description

Technical field: [0001] The invention belongs to the technical field of foundation pit support, and relates to a water-stopping device for joints of continuous walls in high-water-rich coastal areas, in particular to a water-stopping device with I-shaped steel as the joint. Background technique: [0002] Diaphragm wall is an important form of deep foundation pit support structure. Its basic process includes: guide wall construction, mud preparation, trench construction, steel cage production, steel cage hoisting, joint treatment, underwater concrete pouring, etc. , wherein the construction of the joints of the underground diaphragm wall (especially in a high-rich water-facing area) is a technical problem affecting the anti-seepage and water-proofing of the underground diaphragm wall. [0003] At present, the commonly used construction methods at the joints of underground diaphragm walls include the following: One is the circular joint pipe technology: after cleaning the bott...

AI Technical Summary

Problems solved by technology

In recent years, grouting joints have appeared. For example, 201810132066.4 discloses a groutable underground diaphragm wall joint and its construction method. The underground diaphragm wall joint, when the ground wall joint is connected by a rigid joint, the two grouting pipes are fixed on the side of the rigid joint facing the soil by a ring, and when the flexible joint is used, the two grouting pipes are respectively fixed on The two ends of the steel cage facing the soil surface, the specific construction includes: the construction of the guide wall, the unit groove section and the underground diaphragm wall; however, due to the poor engineering geological conditions, the quality of the groove formed by the underground diaphragm wall is a major and difficult point, and the construction cost of this water-stopping method is high

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