Abstract:The cantilever method is one of the most commonly used construction methods in long-span Bridges. It was first used by German engineers to build prestressed concrete continuous beam Bridges, and then it was widely used in pre-stressed concrete T-frame Bridges, continuous T-frame Bridges, cable-stayed Bridges and other bridge types. Its advantage is that the construction does not interfere with the traffic under the bridge, and heavy foot and hand erection can be avoided when the bridge is high. This method is often used in deep mountains and valleys and busy rivers.

Abstract:(2) Paste reinforcement: paste reinforcement and increase in the principle of moment of habit method is similar, but the reinforcement object is different, such as paste steel plate to strengthen the weak part of the structure is more convenient, but pay attention to the connection with the original structure, the method is to use epoxy mortar as a binder, with anchor bolts as a pressure measure of the steel plate, so that the steel plate is sticky, but also can help bear the structural deformation of the steel plate at both ends of the large shear stress.

Abstract:This paper mainly introduces some special construction methods in this project through the treatment of high slope of water intake and tailwater tunnel of underground power plant of Guangxi Youjiang Baise Water Conservancy project. In particular, the pressure distributed prestressed anchor cable which is widely used in geotechnical anchoring engineering in China and the vertical wall suspension construction method which is rarely used in actual construction are introduced. It is hoped that through this article, we can play a role in introducing jade to colleagues who do geotechnical anchoring work, and also make a contribution to improving the geotechnical anchoring construction method in our country.

Abstract:The report is based on a series of previous research results to continue in-depth research and discussion, and the observed situation after digging out various anchor solids. The object of implementation is three kinds of anchor solids, which are load dispersive, tension and pressure, after vertical drilling in the gravel layer of the Toyokawa sector in Sapporo City.

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