Title: ????? Bearing Capacity of Foundation Soil
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- ?????Bearing Capacity of Foundation Soil
- ????????
32?????????????
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- 3???????????
- ????
- ??????
- ????(?????)
4 ????????????
- 1)???????????(??) p? pu /Fs f
- 2)?????????????
- S ?S
- (1)??? (2)???
- (3)?? (4)????
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pcr
pu
p
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S
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8??? ???? ???? ????
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pcr
????
pcr pu
????? ?????
pu
????? ?????
9????????????,???????--?????????
- ????????????? ,??
- ????????(???)
???????
10????????Zmax
- ??Zmax0????
- ??ZmaxB/4,B/3?????
- Pcr p1/4, p1/3N?B ?/2Nq ? dNcc
- (??????,???????)
11????????????
- Nq Nc
N? - Pcr 1? /?ctg? -? /2?) (1-Nq )ctg?
0 - p1/4 1? /?ctg? -? /2?) (1-Nq )ctg?
(Nq-1)/2 - p1/3 1? /?ctg? -? /2?) (1-Nq )ctg ?
2(Nq-1)/3
12??? ???????
????
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- 2????????????
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- 1 ????????????????????? ?????????????????
???????????????????? - 2 ???????? ???????????????
- 3 ???????? ?????????????????????????????
- ??????????????????
14???????-?????
- (?)??????
- 1.????
- 2.??????
- 3.???????
- (?)???-????????
- 1.????????????
- 2.?????pu
15?????????
?z
?zx
(1)
?x
(2)
??????
(3)
161.???(Prandtl)?????
- 1)??????????(?????,??????????
- 2)??????????(1)??0
????(1)?(2)?(3)??????,??????????????????????????
Pu
17I?
??pu
Pu
????pu?????, ???????45????2
?? ? kapu
??
?3 ?D
?????????, ???????45?- ??2
?1 ? kp?D
q?D
18?????
??????? rr0e ?tg?
????????? pu ? ?D ?pa ? pp ?c?R ????A?????
19(No Transcript)
202.?????pu
??Nq ?Nc??????
21????????????
- (?)?????
- (?)????
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22(?)?????
- 1.????
- 2.????????
- 3.???????
231.????
- (1)????????,????????0
- (2)????????
- (3)??????????????,?????????q ?D
242.????????
???
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25????????
B
p u
1.????????,????
2. ???????? ??p u ??W ???C ?????Ep
?
W
EpEp1Ep2Ep3
Ep1???? Ep2??????? Ep3 ????
26??
27- ???????????? N??Nq?Nc
- ??8-10,?????
- ????-??????????,??????????????
28?????????
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????D?????
29(1)? ??????????,????????????????, q?????, ???????
(2) ??B???2B,???????????22?(?????),??????????????2
?.(? BN?/2????) B??,q?????????,qNq???B??,?????????
, cNc??
30(3)qNq,???????,?????????-??????????????????
Nq?????
(4) cNc????,????????????????? ?????????? Nc?????
31??? ?????????????????
32??????????????
- ?????pu ??????????????
- ?????f ??????????????
33???????fak
- ????pcr
- ?pult2 pcr?,????????
- ?????
- s/b 0.010.015?????
- s/b 0.02?????
34??????????
35???????????
???fa (?????)
???fa (?????)
3. ?????
36??????????fa ?????
? ????
fa Pcr
? ?????
fa P1/4 ? P1/3
??
? ???????
fa Pu / Fs
Fs ---????
37?????????????
- 1. ?????????????????????????????
- 2. ???????,????????
- 3. ????????????,???????
38 ????
- ?????-????
- ??? -????
- ??? -?????
39??????
???
???
40????????
- 0.5? 0.5m, 0.71 ? 0.71m, 1.0?1.0m
- ???3?
- 8-10?
- ???????
- ???????
41 pu
- ???????
- (1)???????????
- (2)??????,??????,
- (3)???????,24?????????
- (4)s/bgt0.06?????????
pcr
p