365体育|365体育直播

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2010-08-04 17:50:38.0 ???α?????????

  

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(1??65066?????????????116100??2????????????????????????????116000??3?????????????????????????????116300)

 

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1  ??????

?????????????????????????????????????????????????????????????????????????????????彨????????????????????????Χ???????????????1m???3????????15m??????????????5m?????20m??????????15m???????????????????????7m???????????????21m????????????????????????1?????

???????????????????204lm?????7?????????????????35m????17m????12m?????????1326m2????????5m(????????0.5m)????12?????????????????1??4???3???????????????0.5m??0.5m???м?2??3???3?????????????0.6m??0.6m?????????4????2m????????0.5m??0.5m????????????????????λ???????????0.3m??0.4m??????0.2m????????????????????????????彨???????????2??

2  ???????巽??

???????????彨?????????????δ??????????????????Χ?????????????Ч?????????????????????????????????21m????????????????????????????????????(???????)??????????????????

2??1?????????

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2??2?????????

???????????????????????????????????????????????????????????????????1??2???????????е???????????????

2??3??????????

????????????????17m???????????????????????????????????????????????????????????????????????45??б?棬???????????γ????п????????????????????????????2??3?????岿λ???????????п????(???3)??

2??4?п??????

????????????????????????????????????п???????1??2????????????п??????2??3??????????????????????ú??????????????????????????

2??5?????????

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3  ???????????

3??1  ?п????

???????????????????????????????п????????????????????????????2??3???????????????????????????????????塣

3.1.1  ????п???

?????????????????????????????????????????????????????????????????1??2??????????γ?????????

1?1??2??3??4???????п??????2.5m??2m??1.5m??0.5m????2?1??2??3?????????????????1.5m??1m??0.5m??????п??????γ?6.5m??????п???????3?????????????????????γ?10m??????п?(???4)??

3.1.2??????п???

???????????4????2m????????0.5m??0.5m???????????????????????????????????2?????????2m?????2?????????0.5m?????γ??????α????п?(???3)??

3??2???????

3.2.1???????????

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?????????????3???????????????β??????1??????????????????????????2???????????????L=(0.6??0.8)B????B???????????????1?l??4????????????L1??4=0.33m??2??3????????????L2??3=0.4m?????屬????????1?????

3.2.2????屬?????

?????4???????????0.5m??0.5m????????????????????????0.30m??????0.35m???????????????????????????????????????????

???????????????L???=0.35m?????????????????????????λ?????????q=1.5kg??m3???????????1???????????0.5m??0.5m??????????2m???????????0.5 m??????????????????????????0.30m??????0.35m??????????????????????????90g?????屬?????????l??

3??3????·???

???????????????????????ú????????絼??????????????????1????????????2??MSl?????(0 ms)???????4???????????????????3.99??3.24??3.33??0.60kg????1??1??2???1?????????????????MS3?????(50ms)????2??1??2???2?????????????????MS6?????(150ms)????3??1??2???3??????????????1????????????Ms9?????(310ms)????4??1???4???????????2????????????MSl2?????(550ms)??????????????????????ε?????

 

4  ??????У??????

4??1  ??????

?????????????????????????????緿?????????????????????????????????????????????У???

4.1.1  ??????

 

??У?Q?????????????Q=3.99kg??K??a??????????????????K=200??a=1.8??R????????????R=2lm??K????????????????????K??=0.25??

???й??????????????v=0.48cm??s???????С??3cm??s????緿???????

4.1.2?????

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??У?vt???????????????????cm??s??Kt???·?????????????????Kt=3.5????=-1.7??M=600t??g=10m??s2??H=35m????=10MPa??R??????????????????????R=33m??

???й??????????????ɡ?Vt=2.58cm??s????????????????????ü?????????????Vt????С??3.0???????????????

4??2??????

(1)???????????????????????????????????????????????????????????????

(2)????????????????λ??2?????????????????????????????????????赲??????????????????????

(3)????????????????·?ò????и?????????????????????·??????

(4)?????????????????????????????飬??????????????200m??

(5)??????????緿??????????2m?????????????????????????

(6)????????????????????????????????λ??????????????0.8m????????л??壬???????????????????????Ч????????????

 

5  ????Ч???????

5??1  ????Ч??

?????????????尴???????????????????????20m???????????4.2m????????4m???????????15m???????????????????У????????????????????????????????????????

5??2  ???????

(1)???????????????????????????????????????????????????????????????????????????

(2)??????п?????????????ú????????????估??????????????Ч????

(3)?????????????????????????????????????????????????????????п?????ж??п???2??3????????????????????????????????????????????????????????????????????????????????????

(4)?????????????????????????????????????????????????????б?????????????????????????????????????????????β??????????????

???????????????60??

 

?ο??????

[1]????褣?????????????.???п??????[M]?????????й??????????磬1987.

[2]?????????????[M]????????й???????????????????(???)??1985??6??

[3]??????????????????????????????[J]??????????2009??15(1)??1??4??

[4]?????磬???ι????ι????????????????????????[J]???????????1998??10(5)??53??54??

[5]??????????????????????????????????????????????[J]??????????2008??14(3)??50??52??



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