Study Of Buried Steel Sylphon Bellows Arching Effects

Soil Arching is a load transfer mode gradually formed in the course of deformation of soil, it has great effects on stress field and displacement field in Geotechnical Engineering. Soil Arching and relative soil presure calculation method have been discussed and concerned all the time, especially, when it comes to 20th century, achivements on data measurement, model tests and theoretical research gradualy increased, got brilliant effects when applied to practical engineering. Meanwhile, it can be seen that research on Soil Arching is not quite defectless up till now, the research on Soil Arching are not sufficient enough, there still existing some issues about calculation method, so it is important and necessary to keep on research on the subject.According to current research on Soil Arching Effects, on the basis of previous researches, studied Soil Arching Effects of buried steel sylphon bellows culvert system, main achievements include:1. Theoretically discussed the mechanization of Soil Arching Effects of buried steel sylphon bellows culvert system. Breafly summarized the general concepts, formation mechanization, classification, condition of existence, existence form of Soil Arching Spring and associated factors; provide types of Soil Arching Corruption; analyzed horizontal and vertical Soil Arching formation mechanization and procedure; give out a new ideas of formation mechanization of Soil Arching Spring and retention force; further complished conditions of existence theory.2. Applied strain measuring instrument and pressure cell tests.Monitoring underconstruction programs and tests, conclude the change disciplines of tangential strain and Axial strain during the procedure of sylphon bellows culvert burying.3. Simulated research results combiend with Arching mechanism data, utilize finite element analysis software, researched change disciplines of Arching mechanism during the procedure of sylphon bellows culvert burying.4. According to field tests and finite element simulation, objectively concluded the the Arching theory of steel sylphon bellows culvert.