The Influence Of The Failure Of Typical Link-banked Structures On The Overall Safety Of High Piled Wharf

The frame-type high-pile wharf,according to the mode of Link-banked structure,can be divided into two types: full-style and bridge-type,the main types of Link-banked structure are vertical and slope steep type.Link-banked structure,as a part of Frametype high pile wharf and connection of land area,integrates the terminal structure,foundation and land yard into an associated whole,the load among them interact with each other and coordinate with each other.However,the complex and varied terrain conditions and hydrological conditions of inland rivers give rise to complicated load conditions,as a result,the destruction of Link-banked structure have been taking place widely,there are three commomplace failures: global instability,instability of Linkbanked structure(Link-banked structure overturning and sliding failure),as well as the failure which is caused by excessive horizontal displacement or local extrusion deformation of Link-banked structure.In this paper,the widely-used link-banked structure that is consisted of high retaining wall and high steep slope in the inland river port area is studied,specifically,the research on the influence of bank slope destruction and high retaining wall damage on the overall safety of the Frame-type high pile wharf is commenced.And a representative optimization design method is put forward.In order to study the influence of the bank slope failure on the overall safety of the high-piled wharf,the strength parameters of the bank slope soil are reduced by ABAQUS,and the failure of the bank slope is realized.Then,the pile foundation and the upper frame structure were analyzed separately.There are two kinds of design methods which is distinguished by whether there is direct interaction between high retaining wall and wharf structure.Based on this,the change of the wharf structure is study,as a result,the change of the wharf structure is only affected by the failure of the slope when there is no direct interaction between the high retaining wall and the wharf structure,on the contrary,the change of the wharf structure is affected by both high retaining wall and wharf structure.In order to study the influence of high retaining wall failure on the overall safety of high-piled wharf,the difference between stable and instable high retaining wall is studied.Mainly,the impact of high-wall tipping and slipping failure on the overall safety of structure are studied respectively.The failure of the bank slope will have a great impact on the overall safety of the high-piled wharf,and all parts of the terminal structure are in bad condition.Therefore,in order to avoid the failure of the bank slope as far as possible,it is significant to control the bank slope of wharf before the construction.The impact of the high retaining wall failure on the safety of the high-piled wharf is localized,which will mainly cause damage to the connection between the high retaining wall and the terminal structure,in order to avoid this problem,it is necessary to install a reasonable isolation device at the connection between the high retaining wall and the terminal structure to reduce the damage caused by the sudden increase of the local force.