Study On Bearing Capacity Of Foundation In Hilly,Basin,Valley Area Of Yanji And Helong

Determination of foundation bearing capacity is an important task of geotechnical engineering investigation,and also an important basis for foundation design.Firstiy,This paper expounds the research history of foundation bearing capacity,mainly analyzes the calculation formula for determining the foundation bearing capacity at home and abroad from the theoretical level.Secondly,it describes the Yanji,Helong basin Hill valley area of natural and geographical conditions,the engineering geological conditions.According to the collected data,the article summarizes Yanji,Helong Basin hill valley topography.There are three geomorphic features in this area,hills,basins and valleys.The research object is the round gravel layer,which is naturally formed and used in engineer construction.Researchers always use theoretical formula calculation method field in-situ test method and standard table lookup method to calculate the bearing capacity of foundation in round gravel layer.This paper use Were used shallow plate loading test and dynamic cone penetration test in situ test to study the bearing capacity of foundation,take advantage of the tomeasure the force characteristic value and deformation modulus for round gravel layer bearing capacity foundation.At the same time,heavy dynamic penetration test in situ is conducted to obtain the corresponding hammering numbers,Finally having dynamic penetration hammering numbers to foundation bearing force characteristic value,and deformation modulus data statisticaliy,the essay study the correlation between these data.Finally,it obtained the empirical formula which applied in Yanji Helong basin Hill valley area for heavy-duty dynamic penetration hammering numbers in calculating foundation bearing capacity,deformation modulus and foundation bearing force characteristic value.Therefore,the article provides a reasonable economic and brief way to determine the foundation bearing capacity for the future engineering construction survey as well as design,but also provides technical support for the regional expioration planning.