Connection structure between steep slope bituminous concrete core-wall and concrete foundation

Abstract

The invention discloses a connection structure between a steep slope bituminous concrete core-wall and a concrete foundation. The connection structure comprises the concrete foundation, bitumen, bituminous mortar, a bituminous concrete core-wall enlarged head, and the bituminous concrete core-wall. The concrete foundation is connected with the bituminous concrete core-wall enlarged head through an opposite joint, with a metal water stop piece being arranged in the middle. The bituminous mortar is doped with an admixture for improving the thermal stability of the slope. The bituminous concrete having high bitumen content is used in the bituminous concrete core-wall enlarged head and bilateral sides of the bituminous concrete core-wall. The cross section of the metal water stop piece is U-shaped. By the connection structure between the steep slope bituminous concrete core-wall and the concrete foundation, the deformation compatibility of the steep slope bituminous concrete core-wall and the thermal stability of the slope are increased, the connection manner between the bituminous concrete core-wall enlarged head and the concrete foundation is simplified, the construction of the concrete foundation and the rolling compaction of the core-wall bituminous concrete are convenient, and the seepage-proofing effect of the joint is excellent.

Description

technical field [0001] The invention relates to the technical field of asphalt concrete core walls of water conservancy and hydropower projects, in particular to a connection structure between steep slope asphalt concrete core walls and concrete bases. Background technique [0002] The asphalt concrete core wall and the asphalt concrete core wall enlargement head usually adopt asphalt concrete with ordinary asphalt content, and the deformation coordination ability in the dam body is weak; there is no admixture in the asphalt mortar, and its thermal stability of the slope is poor, so it is not suitable for steep slopes. Construction of slope areas. The concrete base and the enlargement head of the asphalt concrete core wall are generally connected by an arc joint, and there is no water stop or W-shaped and Z-shaped metal water stop in the middle. The asphalt concrete inside and around the waterstop cannot be compacted by vibratory rolling, and the anti-seepage effect of the ...

AI Technical Summary

Problems solved by technology

[0002] The asphalt concrete core wall and the asphalt concrete core wall enlargement head usually adopt asphalt concrete with ordinary asphalt content, and the deformation coordination ability in the dam body is weak; there is no admixture in the asphalt mortar, and its thermal stability of the slope is poor, so it is not suitable for steep slopes. Slope area construction

The concrete base and the enlargement head of the asphalt concrete core wall are generally connected by an arc joint, and there is no water stop or W-shaped and Z-shaped metal water stop in the middle. The asphalt concrete inside and around the waterstop cannot be compacted by vibratory rolling, and the anti-seepage effect of the joint is not good

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