Karez type underground water collection, delivery and storage gallery applicable to mountain areas of North China

Abstract

The invention provides a karez type underground water collection, delivery and storage gallery applicable to mountain areas of North China, and relates to the technical field of karez type undergroundgalleries. The karez type underground water collection, delivery and storage gallery applicable to the mountain areas of North China comprises blocking structures, a flood discharging channel, closedconduits, shafts, control valves, output channels and impounding reservoirs, the at least five blocking structures are arranged in a whole gully drainage basin in the water flow direction of gullies,the shafts communicate with the closed conduits, and the first shaft is arranged at the downstream of the first blocking structure; the impounding reservoirs are divided into the first impounding reservoir and the second impounding reservoir; the closed conduits are distributed on the lower part of the earth surface, and the water outlet ends of the closed conduits are connected with the first water storage pool through the output channels; the flood discharging channel communicates with the first impounding reservoir through the output channels; and the control valves are arranged at inletsof the impounding reservoirs, outlets of the impounding reservoirs, joints of the closed conduits and the output channels and intersections of the closed conduits and the shafts. According to the karez type underground water collection, delivery and storage gallery applicable to the mountain areas of North China, the problem of water shortage in the mountain areas is solved while blocking and flowdividing functions are both achieved, and thus, the function of governing small and medium-sized flood and debris flow gullies is achieved.

Description

technical field [0001] The invention relates to the technical field of karez-type underground corridors, in particular to a karez-type underground water-collecting, transporting, and storing corridor suitable for mountainous areas in North China. Background technique [0002] Through the investigation of some mountainous areas in North China, it was found that in order to restore vegetation and prevent soil erosion, a large number of dam terraces were built and commercial crops were planted. However, in many places, although the rainfall is abundant, there is still a lack of water in the mountains. As a result, it is necessary to irrigate plants with drinking water from the bottom of the mountain to the top of the mountain. This is not economical, time-consuming and laborious, and is not a long-term solution to the problem. Now in order to solve the problem of water shortage, the reservoir has become the most important water conservancy project to ensure the water supply for...

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Problems solved by technology

Although the underground reservoir has the advantages of no land occupation, large storage capacity, low investment, small evaporation loss, and it will not trigger landslides and collapses on the bank slope of the reservoir, it is safe and reliable, but its exploration is difficult and requires harsh geological conditions. Good underground water storage medium is required (layered porous aquifer, large water-bearing fault zone, large karst water storage space, etc.), the groundwater level is not easy to control, and management is difficult, etc.

The cost of the project is less than that of surface reservoirs, but it is also a large financial expenditure for a small village

At the same time, our country has a large area of ​​mountains, so it is necessary to carry out centralized control and control of the most harmful valleys, but small valleys cannot be left alone. There are many valleys, the length of the valley is not long, and the drainage area is small, so there will be no major damage, but there will be Affected by floods and rockslides, some valleys have not been harmed at present, but it is uncertain that there will be no harm in the future

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