基于WFI动三轴试验仪的小型土箱振动台试验系统研制.PDF

3 1 2 V o.l 3 1 N o. 2 20 11 4 JOURNAL OF EARTHQUAKE ENG IN EER ING AND ENG INEER ING V IBRAT ION A pr. 2011 : 1000- 1301 20 11) 02- 0155- 07 WFI 王炳辉, 陈国兴, 王志华, 朱定华 , 2 10009) : , W F I , , , , , : W F I; ; ; ; : P315. 971 : A Developm ent in small soi-l box shaking table test system based onWFI triaxial test apparatus WANG B inghu i, CHEN Guox ing, WANG Zh ihua, ZHU D inghua Inst itu te of G eotechn ical Engin eering, N anjing U n iversity of T echnology, N anjing 2 10009, Ch ina) Abstract: In order to carry out the research on dynam ic properties of m odel-foundation- so i,l a sm all size so i-l box shak ing tab le system w as developed. It is assem bled by the ready-m ade equ ipm ent from WF I dynam ic triax ial appa- ratu s including control p latform, a ir pressure pow er, pneum atic power equ ipm ent, and contro l and data acqu isition system CDA S) and the anc illary equ ipm ent designed by authors inc lud ing cap s and guiding devices, sm all so il- box and signa l cond ition ing converter. By the perform ance investigating, the system . s table has satisfactory unid-i rectional and stable properties and it can ach ieve the earthquake w ave input by d isp lacem ent contro lling. T he re- flection and scattering effect from the boundary of the sm a ll so i-l box can be neg lected. T he signal cond ition ing con- verter is designed ra tiona lly and the testing resu lts are cred ib le. So the system is appropriate to carry ou t the re- search on dynam ic properties of sm al-l sca le m odel foundation so ils. K ey words:W F I dynam ic triax ial apparatu s; a ir press