Construction method of narrow foundation pit asphalt concrete core wall

Abstract

The invention belongs to the field of asphalt concrete core wall construction of narrow foundation pits, and particularly relates to a construction method of a narrow foundation pit asphalt concrete core wall. The construction method comprises the following steps that water retaining banks are arranged on left and right banks of the core wall, water collecting pits and water retaining ridges are arranged at the upstream and downstream positions, and material collecting pits used for stacking transition materials are arranged at the upstream and downstream positions; and then a backhoe is adopted to stride on a core wall base, the transition materials are laid from the right bank to the left bank, and a loader is adopted to stride on the transition materials from the left bank to the rightbank to lay asphalt mixtures. According to the construction method, the problems of complex construction procedures and the like are effectively solved, the construction quality and safety are guaranteed, meanwhile, the construction speed of the asphalt concrete core wall is increased, the construction period is shortened, the construction period requirement of the asphalt concrete core wall is met, and mechanized construction of asphalt concrete laying in a narrow area is achieved.

Description

technical field [0001] The invention belongs to the field of asphalt concrete core wall construction of narrow foundation pits, and in particular relates to a construction method of asphalt concrete core walls of narrow foundation pits. Background technique [0002] With the development of my country's hydropower industry, asphalt concrete core walls are widely used. Asphalt concrete core walls can adapt to various complex climatic conditions and have good anti-seepage effects. [0003] The construction of asphalt concrete core wall needs to consider the transportation equipment of asphalt mixture and transition material. For narrow foundation pits, the construction of asphalt concrete core walls is more limited by the water, pollution, transportation of mixture and transition materials during construction, and the safety of the foundation pit slope. [0004] Conventional asphalt concrete core wall construction methods for narrow foundation pits: transport asphalt mixture a...

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Problems solved by technology

[0004] Conventional narrow foundation pit asphalt concrete core wall construction method: transport asphalt mixture and transition material by means of chute, hanging tank, and manual cart. Although the operation is simple, the construction speed is slow, and the temperature loss during the transportation of asphalt mixture is serious. The quality and safety of the asphalt concrete core wall cannot be effectively controlled

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