Research On New Suspended Vertical Wharf Structure And Its Mechanical Properties In Fluctuant Backwater Area Of Three Gorges Reservoir Area

As the subject of the study on the design of Chongqing Port great water fluctuation deepwater wharf, which is the major scientific and technological special transportation infrastructure of Chongqing"Eleventh Five-Year", based on the phaseⅢproject of Chongqing Cuntan container terminal, according to the features of special topographic geological and hydrological environment of fluctuant backwater area of Three Gorges Reservoir, the large pile and span overhead erected new wharf structure is proposed, and two programs of the large pile and span overhead erected new wharf structure and their constructional water level are studied out, by using numerical analysis method, the calculation analysis and the program comparison of the two programs of the large pile and span overhead erected new wharf structure on the construction conditions and the force of structure, the recommended program is the large pile and span overhead erected new wharf structure. The specific work is as follows:①Through the water level duration curves before and after the Three Gorges Reservoir and statistical analysis of hydrological data in Cuntan reach, the reasonable constructional level is made for the overhead erected wharf structure type.②Because the substantial increase in water level of the overhead erected wharf after the Three Gorges Reservoir, the overhead erected wharf structure type is no longer appropriate, which is similar to the phaseⅠ,Ⅱprojects of Cuntan traditional engineering, therefore, the new study of overhead erected new wharf structure type is carried out, the large pile and span overhead erected new wharf structure type is proposed, and two programs of the large pile and span overhead erected new wharf structure are studied out.③For the overhead erected wharf structure on the Three Gorges Reservoir fluctuating backwater area can meet the construction requirements or not, and a better program comes out by comparing the two programs of the large pile and span overhead erected new wharf structure.④For the overhead erected wharf structure on the Three Gorges Reservoir fluctuating backwater area can meet the security requirements or not, and the two programs of the large pile and span overhead erected new wharf structure are had static and modal calculations,and a better program comes out by the analysis of the results.⑤According to the two programs of the large pile and span overhead erected new wharf structure are analyzed in natural conditions, construction conditions and requirements of the safe use to determine the recommended program of the large pile and span overhead erected new wharf structure.