Steep slope section inverted siphon arrangement structure and construction method

Abstract

The invention relates to the technical field of water conservancy facilities, in particular to a steep slope section inverted siphon arrangement structure and a construction method. The structure comprises a foundation trench arranged on a slope, the bottom of the foundation trench is horizontally arranged, the width of the bottom of the foundation trench is larger than the outer diameter of an inverted siphon, a plurality of anchor bars are inserted into the bottom of the foundation trench, one end of each anchor bar is perpendicular to the bottom of the foundation trench and inserted into bed rock, the other end of each anchor bar is located in the foundation trench, a concrete base is arranged at the bottom of the foundation trench, the anchor bars are embedded in the concrete base, a pipe groove with a semicircular section is formed in the concrete base, an inverted siphon is laid in the pipe groove, outer wrapping concrete with a semicircular section is arranged on an exposed semicircular outer surface of the inverted siphon, and the outer wrapping concrete is connected with the concrete base in a matched mode to wrap the inverted siphon. The arrangement and use stability of the inverted siphon on the steep slope can be effectively improved, the full-wrapping type temperature protection effect on the inverted siphon can be achieved, and the pipe wall of the inverted siphon is prevented from generating cracks due to the temperature difference.

Description

technical field [0001] The invention relates to the technical field of water conservancy facilities, in particular to an arrangement structure and construction method of an inverted siphon on a steep slope section. Background technique [0002] The inverted siphon is one of the common buildings in water conservancy projects. It is a water pipeline used to transport channel water through rivers, valleys, depressions, and roads. It is usually made of reinforced concrete and prestressed reinforced concrete materials. It is also useful Pressure steel pipes and ductile iron pipes are mainly selected according to the pressure water head, pipe diameter and material supply. The inverted siphon consists of three parts: the inlet section, the pipe body section, and the outlet section. It is a water pipeline that passes through river canals, valleys, depressions or roads from underground or laid on the ground. When pipelines or channels encounter river valleys or ravines, the use of i...

AI Technical Summary

Problems solved by technology

The existing method of arranging inverted siphons on steep slopes is to dig shallow grooves to embed inverted siphons in the foundation, and pour concrete bases at the bottom of inverted siphons. Most of the siphons should be buried shallowly below the ground to eliminate the influence of temperature changes on the pipelines. However, the filling soil in the steep slope section cannot be self-stabilized, so the overlying soil filling cannot be carried out above the pipelines. That is, the upper part of the inverted siphons is arranged in the open air. In large areas, due to the action of air temperature, the pipe wall will generate greater temperature stress, which will easily cause longitudinal cracks and water leakage

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