final geotextile

7/28/2019 Final Geotextile

1/21

Dari data XSTABL

MR 1.92E+04 kNm

SF 0.851 Nomor

27.39 37.89 m 1

2

SF = MR 3MD 4

5

MD= MR 19150 6

SF 0.851 7

8

SF rencana 1.25 9

10

MR= (1,25-SF min)MD 11

12

13

MR = (1,25-SF Min) Md 14= 8978.672 kN/m 15

T ultimate = 200

FSid = 1.1

FScr = 2

FSx = 1

FSbd = 1

T Allowable = Tult*Fsid*FScr*FSx*FSbd = 90.90909

Pasang geotextile 11 lapis dengan jarak pemasangan 0.5m dari dasar timbu

Digunakan STABILENKA 400/100 dengan kekuatan tarik = 200 kNm

(kN/m3)

Koord bidang longsor (X,Y)

= 22502.94

Lapisan Ke- SiKedalaman

(m)SF E (efisiensi)

2 90.909 20 1.25

1 90.909 11.890 20 1.25

0.85

0.85

4 90.909 1.25

3 90.909 1.25 0.85

6 90.909 1.25

5 90.909 1.25 0.85

0.85

0.85

11.390

10.890

10.390

9.890

9.390

20

20

20

20


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8 90.909 1.25

. . .

10 90.909 1.25

9 90.909 1.25 0.85

0.85

0.85

11 90.909 1.25 0.856.890

.

8.390

7.890

7.390

20

20

20

20


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T Allowable Y muka tnah MR90.909 11.890 1080.909 sigma M 9390 >

90.909 11.390 1035.455

90.909 10.890 990.00090.909 10.390 944.545

90.909 9.890 899.091

90.909 9.390 853.636

90.909 8.890 808.182

90.909 8.390 762.727

90.909 7.890 717.273

90.909 7.390 671.818

90.909 6.890 626.364

90.909 6.390 0.000

90.909 5.890 0.000

90.909 5.390 0.00090.909 4.890 0.000

sigma MR = 9390

nan

0 237.8 25 16.666667 0.299 71.192647

0 237.8 25 16.666667 0.299 71.192647

0 227.8 25 16.666667 0.299 68.198843

0 227.8 25 16.666667 0.299 68.198843

0 217.8 25 16.666667 0.299 65.20504

0 217.8 25 16.666667 0.299 65.20504

0 207.8 25 16.666667 0.299 62.211236

0 207.8 25 16.666667 0.299 62.211236

0 197.8 25 16.666667 0.299 59.217433

0 197.8 25 16.666667 0.299 59.217433

0 187.8 25 16.666667 0.299 56.223629

0 187.8 25 16.666667 0.299 56.223629

0 177.8 25 16.666667 0.299 53.229826

tan C 'n

136.39769

142.38529

130.41008

124.42247

112.44726

118.43487


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0 177.8 25 16.666667 0.299 53.229826

0 167.8 25 16.666667 0.299 50.236022

0 167.8 25 16.666667 0.299 50.236022

0 157.8 25 16.666667 0.299 47.242219

0 157.8 25 16.666667 0.299 47.242219

0 147.8 25 16.666667 0.299 44.2484150 147.8 25 16.666667 0.299 44.248415

0 137.8 25 16.666667 0.299 41.254612

0 137.8 25 16.666667 0.299 41.254612

.

100.47204

88.496831

94.484438

82.509224


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8978.672 FOS Circle Center

No. (BISHOP) x-coord y-coord

(m) (m)1 0.851 27.39 37.89

2 0.866 28.58 37.23

3 0.876 25.24 38.42

4 0.879 24.35 39.54

5 0.886 24.79 44.25

6 0.887 31.04 37.08

7 0.919 23.78 36.48

8 0.975 27.43 31.5

9 0.978 35.23 47.2

10 1.011 23.39 34.48

Le (m) Lo Ltotal (m)

0.980 1.000 18.76

0.939 1.000 18.72

1.074 1.000 18.85

1.025 1.000 18.81

1.189 1.000 18.97

1.129 1.000 18.91

Ld sv

0.500

0.500

0.500

0.500

0.500

0.500

16.280

16.280

16.280

16.280

16.280

16.280


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1.331 1.000 19.11

. . .

1.511 1.000 19.29

1.415 1.000 19.19

16.2801.620 1.000 19.40

.

0.500

0.500

0.500

0.500

.

16.280

16.280

16.280


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Radius Initial Terminal Resisting

x-coord x-coord Moment

(m) (m) (m) (kN-m)22.06 11.11 48 1.92E+04

20.85 13.33 48.15 1.74E+04

22.47 8.89 46.1 1.97E+04

24.21 6.67 46.64 2.25E+04

29.42 4.44 50.58 3.08E+04

20.93 15.56 50.75 1.76E+04

20.08 8.89 42.81 1.65E+04

12.86 17.78 40.19 7.98E+03

32.64 13.33 63.01 3.67E+04

11.97 20 34.51 3.18E+03


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XSTABL File: MPTNEWCU 6-11-** 21:02

******************************************

* X S T A B

* *

* Slope Stability Analysis ** using the *

* Method of Slices *

* *

* Copyright (C) 1992 97

* Interactive Software Designs, Inc. *

* Moscow, ID 83843, U.S.A. *

* *

* All Rights Reserved *

* *

* Ver. 5.202 96 1599

******************************************

Problem Description : mpt newCU

-----------------------------

SEGMENT BOUNDARY COORDINATES

-----------------------------

5 SURFACE boundary segments

Segment x-left y-left x-right y-right Soil

No. (m) (m) (m) (m) Below

1 0 23 20 23 2

2 20 23 34.3 30.1 1

3 34.3 30.1 104.3 30.1 1

4 104.3 30.1 118.6 23 1

5 118.6 23 138.6 23 2

5 SUBSURFACE boundary segments

Segment x-left y-left x-right y-right Soil

No. (m) (m) (m) (m) Below


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1 20 23 118.6 23 2

2 0 20 138.6 20 3

3 0 17 138.6 17 4

4 0 14 138.6 14 5

5 0 11 138.6 11 6

--------------------------

ISOTROPIC Soil Parameters

--------------------------

6 Soil unit(s) specified

Soil Unit Weight Cohesion Friction Pore

Unit Moist Sat. Intercept Angle Parameter

No. (kN/m3) (kN/m3) (kPa) (deg) Ru

1 20 21 0 25 0

2 19.8 19.8 0 25 0

3 17.3 17.3 15.4 0 0

4 17.6 17.6 16.7 0 0

5 17.3 17.3 38 0 0

6 18.6 18.6 46 0 0

1 Water surface(s) have been specified

Unit weight of water = 10

Water Surface No. 1 specified by

**********************************

PHREATIC SURFACE,

**********************************

Point x-water y-water

No. (m) (m)

1 0 24.3

2 138.6 24.3


10/21

A critical failure surface searching method,

technique for generating CIRCULAR surfaces has

100 trial surfaces will be generated

10 Surfaces initiate from each of

along the ground surface between x

and x = 20 m

Each surface terminates between x =

and x = 104.3 m

Unless further limitations were imposed, the

at which a surface extends is

2 m line segments define each

---------------------

ANGULAR RESTRICTIONS

---------------------

The first segment of each failure

within the angular range defined by

Lower angular limit := -45 degrees

Upper angular limit := (slope angle

********************************************************************

-- WARNING -- WARNING -- WARNING

********************************************************************

Negative effective stresses were calculated due

pore water pressures. XSTABL will automatically


11/21

of such pore pressures such that

always greater than, or equal, to

********************************************************************

ERROR #49: NEGATIVE effective stress calculated1 slice(s) out of 26 slices

(shear strength for these slice(s) set

Circular surface (FOS= 1.5178) is defined

ycenter = 79.13 Init. Pt. =

-------------------------------------------------------------------

ERROR #49: NEGATIVE effective stress calculated

1 slice(s) out of 32 slices




-------------------------------------------------------------------






-------------------------------------------------------------------






-------------------------------------------------------------------





12/21



-------------------------------------------------------------------






-------------------------------------------------------------------


1 slice(s) out of 13 slices(shear strength for these slice(s) set



-------------------------------------------------------------------

Factors of safety have been calculated

* * * * * SIMPLIFIED

The most critical circular failure surface

is specified by 24 coordinate points

Point x-surf y-surf

No. (m) (m)

1 11.11 23

2 12.53 21.59

3 14.06 20.31

4 15.71 19.17

5 17.45 18.19

6 19.28 17.37


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7 21.17 16.72

8 23.11 16.25

9 25.09 15.95

10 27.09 15.83

11 29.09 15.9

12 31.07 16.1413 33.03 16.56

14 34.93 17.16

15 36.78 17.93

16 38.55 18.86

17 40.23 19.95

18 41.8 21.19

19 43.25 22.56

20 44.58 24.06

21 45.76 25.68

22 46.79 27.39

23 47.66 29.1924 48 30.1

**** Simplified BISHOP FOS = 0.851

The following is a summary of

Problem Description : mpt newCU

FOS Circle Center Radius Initial

No. (BISHOP) x-coord y-coord x-coord

(m) (m) (m) (m)

1 0.851 27.39 37.89 22.06 11.11

2 0.866 28.58 37.23 20.85 13.33

3 0.876 25.24 38.42 22.47 8.89

4 0.879 24.35 39.54 24.21 6.67

5 0.886 24.79 44.25 29.42 4.44

6 0.887 31.04 37.08 20.93 15.56

7 0.919 23.78 36.48 20.08 8.89

8 0.975 27.43 31.5 12.86 17.78

9 0.978 35.23 47.2 32.64 13.33

10 1.011 23.39 34.48 11.97 20


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* * * END OF FILE


15/21

L *

*

*

Unit

Segment

Unit

Segment


16/21

Pressure Water

Constant Surface

(kPa) No.

0 0

0 1

0 1

0 1

0 1

0 1

(kN/m3)

2 coordinate points


17/21

using a random

been specified.

and analyzed.

10 points equally spaced

= 0 m

34.3 m

minimum elevation

y = 0 m

trial failure surface.

surface will be inclined

:

- 5.0) degrees

****

-- WARNING -- (# 49)

****

to relatively HIGH

limit the magnitude


18/21

the calculated shear strength is

zero.

****

forfor surface # 3

to ZERO)

by: xcenter = 10.25

0 Seg. Length = 2

for

for surface # 19

to ZERO)

by: xcenter = 15.29

2.22 Seg. Length = 2

for

for surface # 34

to ZERO)

by: xcenter = 15.56


for

for surface # 62

to ZERO)

by: xcenter = 18.22


for

for surface # 70

to ZERO)


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by: xcenter = 21.15


for

for surface # 93

to ZERO)

by: xcenter = 28.33

20 Seg. Length = 2

for

for surface # 94to ZERO)

by: xcenter = 23.39

20 Seg. Length = 2

by the :

BISHOP METHOD * * * * *


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****

the TEN most critical surfaces

Terminal Resisting

x-coord Moment

(m) (kN-m)

48 1.92E+04

48.15 1.74E+04

46.1 1.97E+04

46.64 2.25E+04

50.58 3.08E+04

50.75 1.76E+04

42.81 1.65E+04

40.19 7.98E+03

63.01 3.67E+04

34.51 3.18E+03


21/21

* * *

final geotextile

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