High-strength anti-seismic wide-body gravity dam structure and construction method thereof

Abstract

The invention discloses a high-strength anti-seismic wide-body gravity dam structure and a construction method thereof. The high-strength anti-seismic wide-body gravity dam structure comprises a first guide rail, a second guide rail, a first prefabricated body and a second prefabricated body. The first guide rail extends in the length direction of an old dam body, the second guide rail extends in the length direction of a mountain road, and the ends of the first guide rail and the second guide rail are communicated. Included angles exist between the second guide rails and the first guide rails; a first spherical sliding block and a second spherical sliding block are arranged on the lower end face of the first prefabricated body and arranged at the two ends of the first prefabricated body respectively. When the first prefabricated body is installed, the first spherical sliding block is slidably connected to the first guide rail, the second spherical sliding block is slidably connected to the second guide rail, and in the process that the first prefabricated body moves to the top of the old dam body, the second spherical sliding block slides to the first guide rail from the second guide rail; the second prefabricated body is located on the upstream face of the old dam body, and the inclined upper end of the second prefabricated body is spliced and fixed between the first prefabricated body and the first guide rail. The method has the effect of improving the construction efficiency.

Description

technical field [0001] The invention relates to the field of water conservancy facilities, in particular to a high-strength earthquake-resistant wide-body gravity dam structure and a construction method thereof. Background technique [0002] Gravity dam is a large-volume water-retaining structure built of concrete or masonry. Its basic section is a right-angled triangle, and the whole is composed of several dam sections. Under the action of water pressure and other loads, the gravity dam mainly relies on the anti-slip force generated by the dam body's own weight to meet the stability requirements; at the same time, it relies on the pressure generated by the dam body's own weight to offset the tensile stress caused by the water pressure to meet the strength requirements. [0003] In the related art, under the continuous impact of water flow, the shear strength of the gravity dam body is reduced due to the infiltration of water flow. Height and width for reinforcement purpose...

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Problems solved by technology

[0004] Regarding the related technologies mentioned above, the inventor believes that there are the following defects: in actual construction, since the gravity dam is generally built between two mountains, the mountain is steep and the mountain road is long and narrow, it is not convenient for the overall construction of the new dam formwork, and the mountain road It is narrow and long, and it is not convenient to transport and assemble the prefabricated new dam body. There are many inconveniences, which affect the construction efficiency, so there is still room for improvement

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