bai tap dia chât cong trinh

8/10/2019 Bai Tap Dia Cht Cong Trinh

1/24

TS BI TRNG SN

Trang 1NGUYN THNH AN 0903919884

330

Chng2

Bi tp 2.3

Thnh v trn ta c gc phng v hng dc = 3150

Gc dc : tg= h/L = (hH hA)/AH =62 51

0.23965 2

2

= 13027

Bi tp 2.4

bta

H

A65m65m65m

65m

HK3(84m)

HK2(62m)

HK1(51m)

ng phngv hng dc

ngphng

C

EA

D

B

ng phngv hng dc

530

500


2/24

TS BI TRNG SN


700

100

Gc dc :

0 0cos( ) 292cos(17 ) (8 ) 12 51.2cos( )

D A D AD A

h h h hhtg h AB DAB tg h tg m

L AD AB DAB

0 0cos( ) 178cos(77 ) (8 ) 12 6.4

cos( )

A E A EE A

h h h hhtg h AC EAC tg h tg m

L AE AC EAC

,D B E C

h h h h

Bi tp 2.5

Gc dc :

0 0cos( ) 67cos(56 ) (10 ) 1025 1018.4cos( )

A D A DD A

h h h hhtg h AB DAB tg h tg m

L AD AB DAB

0 0cos( ) 108cos(80 ) (10 ) 1025 1028.3cos( )

E A E AE A

h h h hhtg h AC EAC tg h tg m

L AE AC EAC

,D B E Ch h h h

su lp ti C l: 1040 1028.3 = 11.7m

Bi tp 2.1

t gy nghch

Bi tp 2.2

t gy nghch (B)

t gy thun (A)

E

D

C

B

A

660


3/24

TS BI TRNG SN


Chng4

Bi tp 4.6

xil % khi lng t gili cng dn trn ry thi

ail khi lng t gili cng dn trn ry thi

A khi lng t lm TN = 910 + 514.9 = 1424.9g

xi= ai/A*100%

% khi lng t lt qua ry thi: yi% = 100% - xi%

Ta c bng kt qu

TN RY KH

S hiu ry m gi li cng dn (g)xi

(%)yi

(%) inch 0 0.00 100.00

3/8 inch 128.5 9.02 90.98#4 370.8 26.02 73.98#10 910 63.86 36.14

TN RY RA#20 22.43 0.08 99.92

#40 36.84 0.13 99.87#100 51.75 0.19 99.81#200 59.84 0.22 99.78

TN RY RA

#20 xi= (22.43/100)*(514.9/1424.9)

Bi tp 4.7

( ) ,2o

R CVLH N M a M RN F vi R

Cvit theo cch rt gn

1800

( )R

s w

Hd

g t

* *100%1

s

s

Ry

m


4/24

TS BI TRNG SN


Tra bng ta c

= 0.00836 g/cm.s

Rc= 1 + R*0.001+0.0004+0.0018 (*)

Rc s c c hiu chnh

Ta c bng kt qu

Thi gian RRC

=((*)-1)x1000(vit theo cch rt gn)

HRd

(mm)

30 15 17.2 13.613 0.06445 14.2 16.4 13.827 0.0531 13.6 15.8 13.987 0.0462 12 14.2 14.413 0.0335 11.5 13.7 14.547 0.021

15 10 12.2 14.947 0.01230 9 11.2 15.213 0.0091h 8 10.2 15.480 0.0062h 7 9.2 15.747 0.0044h 6.5 8.7 15.880 0.0038h 6 8.2 16.013 0.00224h 5.5 7.7 16.147 0.001

Bi tp 4.9

m ca t:68.3 44.8

*100% 70.4%44.8 11.4

w

s

QW

Q

Khi lng thtch mu t:

32

187.9 89.81.574 /

6.3* *2

4

Qg cm

V

31.574 0.924 /

1 1 0.704

d g cm

W

2.6531 1 1.871

0.924s

d

e

1.871*100% 65.2%

1 2.871

en

e


5/24

TS BI TRNG SN


0.704*2.653*100% 99.8%

1.871s

r

w

WS

e

31 2.653 1 0.576 /1 1 1.871

ssub

g cme

3( ) 2.653 1.871 1.576 /1 1 1.871w s

sat G e g cme

Bi tp 4.10

m ca t:

162 113*100% 43.4%

113w

s

QW

Q

Do t bo ha e = WGs

1s dd

e

Ta c bng kt qu

Gs W ed

(g/cm3)2.658 0.434 1.154 1.234

Bi tp 4.11

m ca t:

(1) (2) *100%(2) (3)

w

s

QWQ

Ta c bng kt qu

Gii hn nho Gii hn dom t m v lon (1) 20.8 22.2 20.9 20.5 21.9m t kh v lon (2) 16 17.1 16 18.1 19

Lon s A15 A28 A93 B39 C45m lon (3) 7.2 8.3 7.9 8 7

S ln ri N 36 26 17

m W(%) 54.5 58.0 60.5 23.8 24.2

p dng pp bnh phng cc tiu dng tuyn tnh, ni suy ng vi N = 25 WL= 58.1%

WL= 0.5*(23.8 + 24.2) = 24%

st ca mu t:


6/24

TS BI TRNG SN


67.3 241.27

58.1 24P

L

L P

W WI

W W

Bi tp 4.12

Mu t 1 WL= 75.3%, chsdo IP= WL WP= 75.3 37.7 = 37.6%

Tra bng 4.24 t bt rt do

Mu t 1 WL= 41.3%, chsdo IP= WL WP= 41.3 18.9 = 22.4%

Tra bng 4.24 t st t do CL

Bi tp 4.13

Ta c Sre = WGsWmaxkhi Sr= 1 Wmax= 0.91/2.66*100 = 34.2%

Bi tp 4.14

p dng cng thc

0*100%, ,1

i ii i i

o i i

h A PA

h A

Ta c bng kt qu

h(0.01 mm)

Ti(N)

i(%)

Ai(cm2)

i(KPa)

0 0 0.000 11.341 0.000

50 21.98 0.658 11.416 19.253100 28.18 1.316 11.492 24.521150 32.69 1.974 11.569 28.255200 33.82 2.632 11.648 29.036250 36.08 3.289 11.727 30.767300 38.33 3.947 11.807 32.463350 40.58 4.605 11.889 34.133400 41.71 5.263 11.971 34.842450 43.97 5.921 12.055 36.475500 45.09 6.579 12.140 37.142

550 47.35 7.237 12.226 38.729600 49.6 7.895 12.313 40.282650 51.86 8.553 12.402 41.816700 54.11 9.211 12.492 43.317750 55.24 9.868 12.583 43.901800 55.24 10.526 12.675 43.580850 53.55 11.184 12.769 41.937


7/24

TS BI TRNG SN


900 51.29 11.842 12.865 39.869

Tbiu ta c qu= 43.901KPa

19.2532926

0.658/100E KPa

Bi tp 4.15

p dng cng thc2

1 10 0 1, 0

1

1 2*(1 ), , , 1

1i n n n

i n n

o n n

h e e ee e e a E

h a

Ta c bng kt qu

(KG/cm2)

hi(0.01 mm)

ea

(cm2/KG)E0

(KG/cm2)0.1 54 2.537 0.679 3.8720.25 110 2.435 0.785 3.2500.5 218 2.239 0.483 4.9771 351 1.997 0.274 8.1122 502 1.723 0.145 13.9104 662 1.432 0.018 99.3942 642 1.468 0.035 53.0951 623 1.503 0.084 22.237

0.5 600 1.545 0.204 9.2860.25 572 1.595

(KPa)

(%)


8/24

TS BI TRNG SN


p tnh bng KPa

Thnh vta c

2.435 2.2390.651

log(0.5) log(0.25)

1.595 1.5450.166

log(0.5) log(0.25)

c

s

C

C

Log(pc) = 1.375 pc= 23.7KPa

Bi tp 4.17

p dng cng thc

21 1

0 0 1, 01

1 2*(1 ), , , 1

1i n n n

i n n

o n n

h e e ee e e a E

h a

Ta c bng kt qu

(KG/cm2)

hi(0.01 mm)

ea

(cm2/KG)E0

(KG/cm2)1 72 0.620 0.021 57.2892 97 0.599

e

Log(p)


9/24

TS BI TRNG SN


Bi tp 4.20

Ta c mi quan h:

tg c

p dng pp bnh phng cc tiu ta c:

Mu 1: c = 0.0945KPa, tg= 0.115 = 6033t bn st

Mu 2: c = 0.0243KPa, tg= 0.5815 = 30010 t ct

Bi tp 4.22

Ta c mi quan h:

2 0 01 3 , (45 ), 2 (45 )2 2

a b a tg b ctg

TKQ TN ta c: a = 1.0325, b = 30.425

0 0 0

30.42514.9

2 2 1.0325

2 ( ) 90 2 ( 1.0325) 90 0.92

bc KPa

a

artg a artg

Bi tp 4.24

Trng lng ring bo ha:

3

2

0.0212423.8( / )

0.082 *0.1694

sat

sat

QKN m

V

Trng lng ring kh:

32

0.0203122.8( / )

0.082*0.169

4

dd

QKN m

V

m ca t:

21.24 20.31*100% 4.6%

20.31w

s

QW

Q

Dot bo ha nc nn


10/24

TS BI TRNG SN


23.8( ) 10(1 ) 2.541

23.81 1 0.046 *0.046110

0.046*2.541 0.1170.117

*100% *100% 10.5%1 1 0.117

r s s

sat

w s sat wsat s s s s

satw

w

s

S e WG e WG

e GWG WG G G

eW W

e WG

en

e

Bi tp 4.26

Cng sc khng nn n:

2max2

13.35*326190( / )

5.4

4

u

Pq KG cm

A

Bi tp 4.27

Tnh ETB

Tnh11

01

1( )

11TH i TbS E E

Kim tra iu kin:

0 0i Tb TH E E S (*)

Vi 0 = 2.47 (bng 4.17)Ta c bng kt qu

STTEoi

(KG/cm2)Etb

(KG/cm2) 0i TBE E 20( )i TBE E Sth

KTiu kin (*)

1 66.7 1.864 3.473 tha2 61.2 3.636 13.223 tha3 68.5 3.664 13.422 tha4 60.1 4.736 22.433 tha5 57.8 7.036 49.510 tha

6 69.3 4.464 19.924 tha7 64.4 0.436 0.190 tha8 67.2 2.364 5.587 tha9 58.5 6.336 40.150 tha10 72.6 7.764 60.274 tha11 66.9

64.8

2.064 4.259

4.60

tha


11/24


12/24

TS BI TRNG SN


Chng5

Bi tp 5.2

cho hmng khng bbc l trng lng ca tng cch nc p lc y ngc ca nc

p lc

max10*4( ) 2.5 1.5

16Wt h t t m h m

Vy chiu su ti a ca h o l: 1.5 + 1 = 2.5m

Bi tp 5.3

4m

1m

t

h

A

t


13/24

TS BI TRNG SN


Xt ti im A

trng lng ca tng cch nc: ((-1.5)-(4))*15.5 = 38.75 KPa

p lc y ngc ca nc p lc

Vo ma kh: 10*(0-(-4)) = 40 KPa

Vo ma l: 10*(2-(-4)) = 60 KPa

Do p lc y ngc ca nc trng lng ca tng cch nc bc y hmng


p lc

(2 ( 4) ) 60 15.5*(6 ) 60 2.129t t t m

Bi tp 5.4

p dng cng thc:

i ih

Ta c bng kt qu

su z(m)

(KPa)

0 06 109.2

11 240.2

Bi tp 5.5

p dng cng thc:


14/24

TS BI TRNG SN


, , 'i i i i w i i i i

h u h u

Ta c bng kt qu

su z(m)

(KPa)

u(KPa)

(KPa)

0 0 0 02 36.4 20 16.4

5 (lp ct) 94.3 50 44.35 (lp st) 94.3 0 94.3

10 195.3 0 195.312 235.7 0 235.7

Bi tp 5.6

Tng tbi 5.5

Ta c bng kt qu

su z(m)

(KPa)

u(KPa)

(KPa)

0 0 0 0

6 (lp bn st) 91.2 60 31.26 (lp st) 91.2 0 91.29 (lp st) 147 0 1479 (lp ct) 147 80 6713 (lp ct) 225.4 120 105.413 (lp st) 225.4 0 225.415 (lp st) 268.2 0 268.2


15/24

TS BI TRNG SN


15 (lp ct) 268.2 190 78.222 400.5 260 140.5


16/24

TS BI TRNG SN


Chng6

Bi tp 6.1

a.Lu lng n vca dng thm:

1 2

2

18 17.211.5*5.4* 0.382

130

H Hq KM

L

(m3/ngy m)

b.Chiu cao mc p lc Hx

1 21 1

2

(18 17.2)*80*( ) 18 18.49

130xH H

H H L mL

Bi tp 6.2


2 2 2 21 2

2

11.5 10.712* 1.332

2 2*80

h hq K

L

(m3/ngy m)

b.Chiu cao mc p lc hx

2 2 2 22 21 2

1 12

(11.5 10.7 ) *50*( ) 11.5 11.97

80xh h

h h L mL

Bi tp 6.3

Ta c h1= 11.1 4.1 = 7m

h2= 9.8 4.1 = 5.7m

1 2

1 2

1 2

21529.655

170 45

40 15

tb

L LK

L L

K K

(m/ngy m)


2 2 2 21 2 7 5.729.655* 1.139

2 2*215tbh hq K

L (m3/ngy m)

b.Chiu cao mc p lc h3

2 2 2 22 21 2

3 1 1

(7 5.7 )*170* 7 5.995

215

h hh h L m

L


17/24

TS BI TRNG SN


Bi tp 6.4

a.Lu lng Q ca ging bm khi bm ht n nh:

1 1

1 1

2 ( ) 2 ( ) 2 *12.5 *6 *(3 0.8)291.6

7ln( )ln( ) ln( )

0.2

hk hk

hk hk

kM H h kM S S Q

r r

r r

(m3/ngy m)

b.hthp mc nc S2

2

2 22

2 2

10ln( ) 291.6*ln( )2 ( ) 2 ( ) 0.23 0.5792 2 *12.5*6ln( ) ln( )

hk hk hk hk

hk hk

rQ

kM H h kM S S r Q S S m

r r kM

r r

Bi tp 6.5

a.Lu lng Q ca ging bm khi bm ht n nh:1 1

2 2 2 21

1

10 0.3 9.7

10 2.5 7.5

( ) *15*(9.7 7.5 )524.3

6ln( )ln( )

0.2

hk hk

hk

hk

h h S m

h h S m

k h hQ

r

r

(m3/ngy m)

b.hthp mc nc S2

22 2

2 222

2

2 2

10ln( ) 524.3*ln( )( ) 0.2 7.5 9.98*15ln( )

10 9.98 0.02

hk hk hk

hk

rQk h h r

Q h h mr k

r

S h h m

Bi tp 6.6

a.Hsthm ca tng cha nc:

1 1

2 2

22 22 1 1

2 2 2 22 2 1

1

13.4 0.7 12.713.4 0.5 12.9

5.2ln( ) 297*ln( )( ) 2.2 15.9( ) (12.9 12.7 )ln( )

h h S mh h S m

rQ

k h h r Q k

r h h

r

(m/ngy m)


18/24

TS BI TRNG SN


b.hthp mc nc Shk

22 2

2 222

2

5.2ln( ) 297*ln( )( ) 0.2 12.9 12.1*15.9ln( )

13.4 12.1 1.3

hk hk

hk

hk

hk hk

rQ

k h h r Q h h m

r k

r

S h h m

c.Bn knh nh hng ca ging bm

2 2 2 2 2 2( ) ( ) 15.9*(13.4 12.1 )ln( ) ln( ) 52.8

0.2 297ln( )

hk hk

hk

hk

k h h k h hR RQ R m

R r Q

r

Bi tp 6.7

a.Hsthm ca tng cha nc:1 1

2 2

22 22 1 1

2 2 2 22 2 1

1

13.2 1.9 11.3

13.2 1.6 11.6

5.8ln( ) 312*ln( )( ) 3.3 8.2( ) (11.6 11.3 )ln( )

h h S m

h h S m

rQ

k h h r Q k

r h h

r

(m/ngy m)

b.hthp mc nc Shk

22 2

2 222

2

5.8ln( ) 312*ln( )( ) 0.2 11.6 9.7*8.2ln( )

13.2 9.7 3.5

hk hk

hk

hk

hk hk

rQ

k h h r Q h h m

r k

r

S h h m

c.Bn knh nh hng ca ging bm

2 2 2 2 2 2( ) ( ) 8.2 *(13.2 9.7 )ln( ) ln( ) 149.7

0.2 312ln( )

hk hk

hk

hk

k h h k h hR RQ R m

R r Q

r

Bi tp 6.8

a.Bn knh tng ng:

20 0

40*5025.2

abr ab r m


19/24

TS BI TRNG SN


b.Bn knh tng tc dng ca ging bm

0 0 010 10*6* 13.8 25.2 248R R r S K r m

Bi tp 6.12

a.Hsthm ca lp cha nc:

2 2 2 21 2 4 5 3 6

0 01 0 1 6 0 1 6

1

4 2

0.5* 32 18 18.35 , 27 16 31.38

1 1(ln ln( ... )) (ln ln( ... ))

2 2

6*310 1(ln190 ln(18.35 * 31.38 )) 12.67

2*4.2 *12 6

QS

QS

r r r r m r r m

nQ nQS R r r k R r r

kM n S M n

(m/ngy m)

b.hthp mc p lc ti A:

2 2 2 21 4 2 5 3 6

2 2 200 1 6

36 16 39.4 , 18 16 24.1 , 16

1 6*310 1(ln ln( ... )) (ln190 ln(39.4 *24.1 *16 )) 3.97

2 2* *12.67*12 6A

r r m r r m r r m

nQS R r r m

kM n

c. su o ti a:

AQS1

HK3

HK6HK5

HK2

HK4

HK1

h

3.97m

11.03m


20/24

TS BI TRNG SN



p lc

max(15 ) 11.03*10 8.1 8.1h h m h m

Bi tp 6.13

a.Lu lng n vdng thm:

1 2

2 2 2 21 2

1

18.5 6.5 12 , 10.3 6.5 3.8

( ) 15*(12 3.8 )6.94

2 2*140

h m h m

k h hq

L

(m2/ngy m)

1 2

1 2

1 2

2 140 8.8752 140

0.3 15

tbL LKL L

K K

(m/ngy m)

b.Lu lng n vdng thm:

2 2 2 20 2

1 2

( ) 8.875 *(12 3.8 )4.05

2( ) 2*(140 2)

k h hq

L L

(m/ngy m)

gim lng mt nc:

1 2

1

6.94 4.05*100% *100% 41.6%

6.94

q q

q

Bi tp 6.14

p dng cng thc:

2

2 2

2 2 2

2 10 604* *ln( ) * *ln( ) * *ln( ) * *ln( ) 0.03 /5 60 60 40

425.92

d

a l H l H d l H K cm s

DA t H S t H S D t H S

(m/ngym)


21/24

TS BI TRNG SN


Chng7

Bi tp 7.1

Hs ng t Kc:

22

22

4435

0.5 0.5639810c

Aa TKg g

Bi tp 7.2

Xt ti im A:

ng sut tng:

sat wL h

p lc nc lrng:

( ) ' ( )w sat w wu L h H u L H

Ct trong bnh si ln khi = 0

( ) 2.66 0.68( ) ( 1)*0.4( ) 1 1 0.68 0.395

1

w sw

sat w

w w

G eL

L eH m

Bi tp 7.4

Bn knh tng ng:

A

L

h

deltaH


22/24

TS BI TRNG SN


0

9*115.6

abr m

Lu lng khi tho kh hon ton:

0 0

0

2 2* *5*3*72 2 709

14.2ln( ) ln( )5.6

R H

r

dH kMH Q kiA k rM Q dr kM dH Q

Rdrr

(m3/ngy m)

Gradient ti hn:

1 2.661 10.946

(1 ) 1 0.755sub s

th

w w

ie

Gradient thc t trong iu kin an ton nht:

2

tt

H Hi

rLR

y r c thl rohay a hay b, nhng ta chn b imax(nguy him nht)

70.8

1114.2

2 2

tt

Hi

bR

Bi tp 7.5

Bn knh tng ng:

0

8.5*105.2

abr m

Lu lng khi tho kh hon ton:

0

2 2

0

0

*5.2*5.52 2 499

14ln( ) ln( )

5.2

R H

r

dh khQ kiA k rh Q dr k hdh Q

Rdr

r

(m

3/ngy m)

Gradient ti hn:

1.837 10.837

1sub sat w

th

w w

i

Gradient thc t trong iu kin an ton nht:

5.50.61

1014

2 2

tt

hi

bR


23/24


24/24

TS BI TRNG SN

T 24

Chng8

Bi tp 8.2

Sc khng ct khng thot nc ca t:

max2 3 2 3

0.02311.5

0.08 *0.172 0.08( ) ( )

2 6 2 6

u

Mc KPa

d h d

Bi tp 8.3

Modun bin dng ca t nn:2 2 142(1 ) (1 0.35 )*0.79*0.28* 712

0.0387

pE d KPa

S

ln ca mng c brng Bf= 2m

2 2( 30) 200*(28 30)

125.6( 30) 28*(200 30)

f f p

f

p p f

S B BS mm

S B B

Bi tp 8.4

Kch thc mng:

2250.3 0.3

2 7.5 3.140.3 25

227.5

f

pf

p f

p

S

SS BB m

S B S

S

bai tap dia chât cong trinh

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