High speed railway foundation reinforced structure with undamaged karez function and construction method

Abstract

The invention provides a high speed railway foundation stabilization structure with an undamaged karez function and a construction method to solve the technical problems of stably reinforcing the highspeed railway karez foundation and maintaining the karez function for a long period of time, the high speed railway foundation stabilization structure with the undamaged karez function and the construction method can improve the function of the high speed railway roadbed construction passing through the karez foundation, and has the characteristics of low construction investment, high operabilityand the like. The high speed railway foundation reinforced structure with the undamaged karez function includes a filtering pond, a water-passing pond, a honeycomb-shaped reinforced body and a vertical shaft filling body, wherein, the filtering pond is arranged at the bottom of the vertical shaft of an upper stream of a karez closed conduit outside the embankment side slope toe; the water-passingpond is arranged at the bottom of the vertical shaft of a downstream of the karez closed conduit outside the embankment side slope toe; the honeycomb-shaped reinforced body is filled in the karez closed conduit between the filtering pond and the water-passing pond; and the vertical shaft filling body is filled in the karez vertical shaft in the range of the embankment foundation base.

Description

technical field [0001] The invention relates to the technical field of geotechnical engineering, in particular to a high-speed railway foundation reinforcement structure and a construction method without damaging the function of Karez wells. technical background [0002] Karez is mainly composed of four parts: underground culverts, vertical shafts, surface channels and "laoba" (small filter pools). It is an ancient irrigation system with a long history and is widely distributed in Xinjiang, Central Asia and West Asia. With the implementation of the "One Belt, One Road" strategy, China's high-speed railways are speeding up to go abroad. At the same time, the trend of investment and construction of high-speed railways in Central Asia, West Asia and other regions is also on the rise. [0003] In the process of high-speed railway line selection, the line direction and Karez culvert will inevitably form intersections, the intersection angles are different, and the culverts are bu...

AI Technical Summary

Problems solved by technology

For Karez wells in normal use or suspended use, their water storage and water passing functions cannot be discarded. In this regard, if the high-speed railway passes through the upper span of bridge engineering or the lower passage of tunnel engineering, the line position needs to be raised or lowered, which will inevitably lead to The investment in the project has increased; if the subgrade project is passed, the foundation reinforcement of the high-speed railway Karez will become the primary problem facing the engineering design

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