Construction method of an underground superimposed double-pipe common well structure

Abstract

The invention discloses a construction method of an underground laminated double-pipeline common-well structure. Firstly, a waterproof cylinder is machined, then an excavation well is dug out, an upper pipe group and a lower pipe group are arranged in the excavation well, a plurality of stacked reinforcing rings are arranged on the peripheral wall of the excavation well to form a mud blocking cylinder, and the waterproof cylinder is arranged outside the mud blocking cylinder. The upper pipe group comprises a plurality of pipe joints, the upper pipe set arranged in the excavation well is calleda connection section, the pipe joints on the connection section are called connection pipes, the pipe joints on left side and the right side of the connection section are called connecting pipes, oneside of each connecting pipe is arranged in the excavation well and is connected with the connection section, and the other side of each connecting pipe is arranged outside the waterproof cylinder. The structure of the upper pipe group and the structure of the lower pipe group are the same except the connection section. According to the construction method, the upper pipe group and the lower pipegroup can be constructed in the same excavation well so that the construction time can be greatly shortened, the occupied area is small, the enclosed area of a road is small, and the influence on thelife of residents along a river is small. The method is used for conveying water back and forth in a water conservancy system.

Description

technical field [0001] The invention relates to the field of underground water pipelines, in particular to the field of treatment of black and odorous water bodies in rivers. Background technique [0002] Urban water bodies refer specifically to rivers, lakes, reservoirs and various landscape water bodies within the urban radiation range. As the carrier of the environment and an important resource, rivers have shown irreplaceable significance in the ecological construction of cities and the expansion of economic development space. On the one hand, it has the functions of water quality conservation and water and soil conservation, and on the other hand, it also plays a positive role in improving the urban microclimate and the living environment of residents. However, in the process of urbanization, a large amount of industrial wastewater and domestic sewage are directly discharged into the water body, far exceeding the original carrying capacity and purification capacity of ...

AI Technical Summary

Problems solved by technology

[0005] River management is often supported by government financial allocations, and due to historical reasons, there are often residential buildings and factories on both sides of the river, and a large amount of land needs to be occupied when building water conservancy facilities, which involves land acquisition, The problem of road enclosure construction, the culvert scheme adopted by the existing technology, the land acquisition and enclosure area is large, which brings huge pressure on finances and has a great impact on the lives of residents along both sides of the river

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