Research On A Application Of Water Settling Method In The Backfill Project Of The West Road Of Liupanshan Trough In Yinchuan

At present,along with the development of economy and the progress of society,the process of urbanization in China is accelerating,and the urban construction is developing rapidly.As a city’s infrastructure,various underground pipelines develop rapidly.Trench backfill construction process is very important for the construction of underground pipelines,but the conventional methods of mechanical backfill and compaction methods for trench backfill construction,compaction quality can not guarantee the chest part,and may not be easy to cause the uneven subsidence of sub grade which affects the normal use of the highway and pipeline.Yinchuan,located in the alluvial plain of the Yellow River,belongs to the sandy soil area,and the backfill of the grooves is particularly serious.Therefore,according to the geological characteristics of Yinchuan area,study on the engineering properties of aeolian sand,find a can make rational use of resources,and can guarantee the quality of the new method of trench backfill is very important,this thesis studies water precipitation method in the west road of Liupanshan road trench backfill engineering application with practical significance important.In this thesis,the author firstly points out the existing problems,and puts forward a new method for the backfill construction of the groove,water settling method.Through in-depth study of the west road project and the engineering geological characteristics of Yinchuan city,the wind sediment is determined as packing.Then,through the indoor experimental research and theoretical analysis on Liupanshan engineering properties of the accumulating sand in the west styles are studied,analyzed the physical properties and the mechanical properties of the aeolian sand of aeolian sand compatibility and qualitative analysis is made on the stability of after compaction,by heavy compaction test and aeolian sand vibration compaction tests,the maximum dry density of aeolian sand is determined.Then,the basic working mechanism of the water sinking method is studied through systematic theoretical analysis,and the applicable conditions of the water sinking method are analyzed.After the combination with the engineering practice,the method of water sink groove backfill construction technology and quality detection method,through the setting of test section,determine the virtual height of the accumulating sand in the wind,virtual coefficient and construction process;Based on the comparison and analysis of three kinds of compactness detection methods,the compactness detection method of the backfill project of the west road of Liupan mountain was determined.In the end,the water sinking method is applied to the backfill project of Liupanshan west road in Yinchuan city,and the results show that the water settling method has certain practicability.In LiuPanShan road trench backfill project as the research object,for wind-blown sand area trench backfill introduces a novel construction method,systematically expounds the principle of water sinking method and construction technology,the research achievements of other wind-blown sand area trench backfill project has certain guiding significance.