High-base asphalt concrete core wall dam

Abstract

The invention relates to a high-base asphalt concrete core wall dam. The high-base asphalt concrete core wall dam is characterized by comprising a high base, a core wall, a base of an anti-seepage asphalt concrete wall, two first transition areas, second transition areas, a first stone stacking area, a second stone stacking area, a riverbed low-compression material area and an anti-wave wall. The core wall is arranged on the base of the anti-seepage asphalt concrete wall, the base of the anti-seepage asphalt concrete wall is arranged on the high base, and the anti-wave wall is arranged at the top of the core wall; the first transition areas are respectively arranged on the upstream side and downstream side of the core wall and are tightly fitted to the core wall; the second transition areas are arranged on the outer sides of the two first transition areas; the heights of the first and second transition areas are the same as the height of the core wall; the height of the high base is larger than 10cm. Advantages and comprehensive superiority of the asphalt concrete, high base, low-compression material and stacked stone material are played completely, the problem of the feasibility of the high-base asphalt concrete core wall dam with narrow lower portion and wider upper portion is solved technically, and reliability, durability, anti-seismic performance and safety of a dam anti-seepage structure can be improved significantly.

Description

technical field [0001] The invention relates to a high-base bituminous concrete core wall dam, which belongs to the technical field of hydraulic structures of hydropower and water conservancy projects. Background technique [0002] With the implementation of the hydropower strategy, a large number of high dams have been built, are under construction or are to be built in the southwest and northwest regions rich in hydropower resources. Earth-rock dam is the most common dam type in dam construction today, and it is also the fastest-growing dam type, accounting for more than 95% of the total number of dams built. There are more than 29,000 earth-rockfill dams with a dam height of more than 15m in the world, among which there are more than 15,000 in my country, mainly including homogeneous earth dams, core wall dams and concrete face rockfill dams. [0003] The development of soil anti-seepage rockfill dams in my country is earlier than that of concrete face dams, and the numb...

AI Technical Summary

Problems solved by technology

[0004] In recent years, asphalt concrete core rockfill dams have developed greatly with the development of construction equipment and testing equipment, the improvement of asphalt quality, the in-depth research of hydraulic asphalt concrete technology, and the anti-seepage technology of asphalt concrete have made great progress, but none of them can reach 200m High-level asphalt concrete core wall rockfill dam

The dam industry mainly has the following concerns about the safety of high asphalt concrete core rockfill dams: (1) The dam settlement of high asphalt concrete core rockfill dams and the core deformation, stress, asphalt The connection structure between the core wall and the lower concrete anti-seepage wall or base and the requirements for the core wall material

(2) Whether the existing experimental methods using scaled-scale model materials can correctly predict the dam seepage stability of high asphalt concrete core rockfill dams and the physical and mechanical properties of dam materials

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