Value analysis of man-cut retaining pile method in Taichung area

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AbstractMan-cut retaining pile method H-steel pile method diaphragm wall method Steel cut power method and box caisson method were using in Taichung urban area when processing cut retaining pile method in work. Thru information gathering, organizing and analyzing, the research mainly carry on the discussion of why mancut retaining pile method were selected and widely used in Taichung gravel and pebble area. Specially, the durability of Man-Cut Retaining Pile Method would be mentioned thru the interview with the field worker and statistic from the past experiences and records. From the point of working progress, the control of man-cut retaining pile method is the key for Taichung gravel and pebble area. The method can keeps the construction cost low and the environment factors advantaged, only the risk of working safety which should be more carefully control. Due to the geologic limitation, mancut retaining pile has its own characteristic in Taiwan and mainly spread in Taichung gravel and pebble area . years and still as the main stream for Taichung cut retaining pile. Key words: Method . Man-Cut Retaining Pile Method, Diaphragm Wall Method,Box Caisson Senior worker mentioned the Man-Cut Retaining Pile Method has been existed for more than 40

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.................................................................................................. 1 Abstract ........................................................................................... II ................................................................................................ III ................................................................................................ IV ............................................................................................. V ......................................................................................... VIII ..................................................................................... 1 1.1 ....................................................................... 1 1.2 ................................................................................. 2 1.3 ....................................................................... 3 1.4 ................................................................................. 4 .............................................................................. 6 2.1 ................................................................ 6 2.2 ................................................................ 7 2.2.1 ...................................................... 8 2.3 ............................................... 13 ............................................................................ 16 3.1 ..................................................................... 17 3.2 ............................................................................... 17 3.2.1 ( ) ............................ 18 3.2.2 ( ) ....... 22 3.2.3 ( ) ........................................... 26 3.2.4 ................................................................... 27 3.3 .............................................................. 30 3.3.1 .......................................... 31 3.3.2 .......................................... 36 3.3.3 .......................................... 39IV e-Thesys(97 )

3.3.4 SWOT ........................................ 40 3.4 ..................................................................... 41 3.4.1 .......................................................................... 41 3.4.2 .......................................................................... 42 ....................................................... 51 4.1 ................................................................. 52 4.1.1 .......................................................................... 52 4.1.2 ........................................................... 53 4.2 ................................................... 56 4.2.1 ................................................. 56 4.2.2 ................................................. 65 4.3 ..................................................................... 66 4.4 ..................................................................... 68 4.4.1 ............................................................... 68 ......................................................................... 80 5.1 ....................................................................................... 80 5.2 ....................................................................................... 82 ......................................................................................... 83 ......................................................................................... 84 ( ) ......................................... 85 ( ) ......................................... 86 ( ) ......................................... 87 0m~20m [BH-1]~ [BH-3] ( ).. 88 ( ) ........................... 94 0m~12m[H-1]~[H-9] ( ) . 95 ( ) ........................................100 0m~15m[H-1]~[H-3] ( ) .......101 ........................................................................... 110 ................................................................ 112

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1-1 ( ) ................................................ 4 222222223333333333333333333333331 2 3 4 5 6 7 8 ( ) .... 9 ( ) ............................. 9 ( ) ........................... 10 ( ) ...................................... 10 ( ) .....................11 ( ) ............................... 12 ( ) ........................... 13 ( ) ................................... 13 18 19 21 21 22 23 25 25 26 27 28 31 32 32 33 34 35 36 37 38 38 42 43 44

1 ( ) ............................... 2 ( ) ................................................. 3 ( ) ........................... 4 ( ) .................... 5 ( ) ................................... 6 ( ) ................................... 7 ( ) ........................... 8 ( ) ............................... 9 ( ) ................................................. 10 ( ) .................................... 11 ( ) .......................... 12 ( ) .................. 13 ( ) .................. 14 ( ) .................. 15 ( ) .......................... 16 ( ) .......................... 17 ( ) .......................... 18 ( ) ............................. 19 ( ) .......................... 20 ( ) .................. 21 ( ) .................. 22 ( ) ............... 23 ( ) .................. 24 ( ) ..................VI

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3- 25 ( ) ............................. 47 3- 26 ( ) ...................... 47 3- 27 M.H.L. ( ) ............................................ 48 444444444444444444441 N ( ) ....................... 2 N ( ) ....................... 3 N ( ) ....................... 4 ( ) ............. 11 ( ) ..................................... 12 ( ) .................................... 7 ( ) ................................... 8 ( ) ............................... 9 ( ) ................................... 10 ( ) ............................. 11 ( ) ...................... 12 ( ) .................. 13 ( ) ................................. 14 ( ) ............................. 15 ( ) .......................... 16 ( ) ...................... 17 ( ) ................................. 18 ( ) ............................. 19 ( ) ................................. 20 ( ) ............................. 54 55 55 56 62 63 69 70 70 71 71 72 72 73 73 74 74 75 75 76

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2- 1 ( 2006) ............................... 14 333333333334444444444441 ( ) .......................................... 2 ( ) ................................... 3 ( ) ................................... 4 ( ) ........................... 5 ( ) ............................... 7 ( ) ............................... 7 SWOT ( ) ............... 8 ( ) ...................................... 9 ( ) ........................... 10 ( ) .................................... 11 M.H.L. ( ) ................................................... 1 ( ) ........................ 2 SPT-N ( ) ................................... 3 ( ) ............. 4 ( ) ...................................... 5 ( ) ................................... 6 ( ) ...................................... 7 ( ) ...................................... 8 ( ) ........................... 9 ( ) ...................................... 10 ( ) ............................. 11 ( ) ..................................... 12 ( ) .................................... 20 24 28 29 30 39 40 41 45 46 50 53 53 64 66 67 69 70 71 72 73 74 75

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1.1

-5m -40m SPT-N(N Value of Standard Penetration Test) 50 1970 1 2 8m 1979 1 2 4 6 8m 20m 70 80 ( 1997) 1

1.2

2 e-Thesys(97 )

( 1997)

1.3

(1) (2) (3) (4) (5) (6) (7) 1-1

3

e-Thesys(97 )

1-1 ( )

1.4

(1) 4 e-Thesys(97 )

(2) (3) (4) (5)

5

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2.1

60 30 ( 2002) -3m -9m -10m -20m 6 e-Thesys(97 )

2.2

( 7 e-Thesys(97 )

2002) 3.5

2.2.1

30 100cm 60 ( 2-1) 70 80 ( 2-2) 8 e-Thesys(97 )

2- 1 ( )

2- 2 ( )

( 2-3)

9

e-Thesys(97 )

2- 3 ( )

( 2-4)

2- 4 ( )

120cm 10 e-Thesys(97 )

30 70cm 200cm ( 2003) 120*90cm ( 2-5)

90cm

2- 5 ( )

( 2-6) SPT-N 3cm 11 e-Thesys(97 )

2- 6 ( )

( 2-7) ( 2-8)12 e-Thesys(97 )

2- 7 ( )

2- 8 ( )

2.3

(2008) 13 e-Thesys(97 )

(2006) 2-1 2- 1 ( 2006) 1 2 3 4 (%) 45 30 20 5

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75

(1997)

(1997) 10 20

15 e-Thesys(97 )

(2008) ( 2 ) ( 98 )

16

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3.1

(2000)

3.2

( 3-1)

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3- 1 ( )

3.2.1 ( )

(1) 42 ( 3-2) 4m 5m 18 e-Thesys(97 )

3- 2 ( )

(2) 6 21 2 1 39 1628.36m 1175.76 m( 3-1) 19m 3m 22m 23.85m 120cm*50cm 72 96 09 01 99 09 08 1086 80 5m GL-5m GL-3.5m SPT-N

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3- 1 ( ) B6F B5F B4F B3F B2F B1F 1F 2F 3F 4F~21F 20329.31m 1175.76m 1175.76m 1175.76m 1175.76m 1175.76m 1175.76m 1175.76m 779.97m 534.7m 689.74m 626.13m 2.9m~3.3m 3m 3m 3m 3m 3m 4m 6.6m 4m 4m 4m 9m 22.3m 95.6m

(3) GL-19m( ) GL+0 GL-4.2m GL-4.2m GL 30m ( ) GL-5m N 50 GL-5m GL-30m N 50( ) GL-19m GL-23.5m 50 30 GL-30m ( 3-3) 20 e-Thesys(97 )

3- 3 ( )

(4) ( 3-4)

72

3- 4 ( )21 e-Thesys(97 )

10m ( 3-5)

3- 5 ( )

3.2.2 ( )

(1) 13 ( 3-6) 22 e-Thesys(97 )

3- 6 ( )

(2) 4 16 2 5510.6m( 3-2) 13.75m 3.05m 16.8m 19.7m 120cm*50cm 108 97 09 01 99 08 31 730 45

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3- 2 ( ) 97 00037 4 16 2 5510.6m 42885.08m 13.75m RC 3.05m RC 4.5*9.5cm H 3 65.2m 6m

(3) GL-5.3 5.8m ( ) GL+0 GL-3.3m GL-3.3m GL-20m GL+0 GL-3.3m N 24 GL-3.3m GL-20m N 50( ) 9 H-4 20m H-1~H-3 H5 H-9 8 ( 3-7) 12m 824 e-Thesys(97 )

25.8m

H-5 H-6

H-1 H-4 H-2

H-8 H-9 H-7 H-3 N

3- 7 ( )

(4) 25m 40m ( 3-8)

108 N

3- 8 ( )25 e-Thesys(97 )

3.2.3 ( )

(1) 36 ( 3-9)

SPA N

3- 9 ( )

(2) 5 30 3 4F 30F 50 1F 3F 1602.51 m 19m 3m 22m 24.5m 120cm*50cm 120cm*30cm 84 97 11 11 100 11 30 1115 55 (3) GL-11.5m GL+0 GL-2.6m ( )26 e-Thesys(97 )

GL-2.6m GL-45m GL+0 GL-2.6m N 10 GL-2.6m GL-45m N 100 ( ) (4) 40m 30m SPA 6 30m ( 3-10) N SPA 84

3- 10 ( )

3.2.4

(1) ( 3-3)27 e-Thesys(97 )

3- 3 ( ) ( ) (m) (m) ( ) ( ) ( ) ( ) 390,217,500 1628.36 23.85 3,874,063 0.99 1,106,341 0.28 776,000,000 5510.6 19.7 4,791,150 0.62 2,459,625 0.32 282,473,000 1602.51 24.5 4,063,059 1.44 1,359,509 0.48

3-3 24.5m 1.44 ( 3-11)

3- 11 ( )28 e-Thesys(97 )

(2) ( 3-4) 3- 4 ( ) ( ) (m) (m) (m) 96 10 96 12 14 97 03 08 72 23.85 1717.2 3.6 80 96 12 31 97 03 06 66 7 68.14 97 09 97 11 06 97 12 15 108 19.7 2127.6 3.6 45 97 11 13 97 12 13 30 20 29.55 97 11 98 01 06 98 03 09 84 24.5 2058 3.6 62 98 01 01 98 02 28 59 (9 ) 11 51.97

3-4 29 e-Thesys(97 )

20 30 7 66 ( 3-5) 96 97 98 3- 5 ( ) 96 10 96 11 96 12 97 09 97 10 97 11 97 12 98 01 ( ) 64 64 58 37 55 40 40 30 ( ) 2100 2034 2258 1141 1253 918 1487 910 ( ) 2356 2255 2413 1274 1386 1046 1652 1014

3-4 3-5

3.3

30 e-Thesys(97 )

3.3.1

3-12

3- 12 ( )

120cm 90cm 120cm 50cm( 3-13) ( 3-14)31 e-Thesys(97 )

120cm*90cm

120cm*50cm

3- 13 ( )

3- 14 ( )

32 e-Thesys(97 )

( 3-15)

3- 15 ( )33 e-Thesys(97 )

( 3-16) N 3 4 N 1 ( ) ( ) ( ) 12 16 3.6m 4.8m ( ) 10 20 30 40 50 60 70 80 90 100 110 120

3- 16 ( )

( 3-17) 34 e-Thesys(97 )

10cm ( 3-18) 50

3- 17 ( )

35

e-Thesys(97 )

3- 18 ( )

3.3.2

1.5m ( 3-19) 360 15m

36

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( ) 10

( ) 20 30 40 50 60 70 80 90 100 110 120

( )

20m 24m

3- 19 ( )

(1) 2000 m 40m 50m 20m 90 20m( )90( )20m( ) 90 90 20m( )90( )3.6m( )6( ) 83.3 6 83.3 (2) ( 3-20) ( 3-21) 37 e-Thesys(97 )

3- 20 ( )

3- 21 ( )38 e-Thesys(97 )

3.3.3 (3) 77 77 08 24 78 03 14 192 ( 1994) 5 37 100cm 22m 250m 5500m 24 24 6 54 ( 3-7) 99 2 3- 6 ( ) ( ) (hr) 73.1 2 4 2 2 4 3.5 4 94.6 64.6 ( )39

(hr) 47.6 2 4 2 2 3.5 3.5

(4) 1987 ( 1994) 2700 m 20 5 e-Thesys(97 )

20m 4,468,000m FS

3.3.4 SWOT

N ( 3-7) ( 3-8) 3- 7 SWOT ( ) (Strength) 1. 2. 3. 4. (Opportunity) 1. 2. 3. (Weakness) 1. 2. 3. 4. (Threat) 1. 2. 3. 4.

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3- 8 ( ) 1. 2. 3. 1. 2. 1. 2. 3. 1. 2. 3. 1. 2. 1. 2. 3. 4.

3.4

3.4.1

30 41 e-Thesys(97 )

3.4.2

(1) ( 3-22)

3- 22 ( )42 e-Thesys(97 )

( 3-23)

46cm

3- 23 ( )

20m 3cm ( 3-24) ( 3-9) 43 e-Thesys(97 )

3- 24 ( )

44 e-Thesys(97 )

3- 9 ( ) 1 2 3 4 5 6 7 8 9 10 11 12 13 ( ) 1 1 1 1 1 1 3 1 4 2 1 1 1

(2) 1 0 m 1 0 m ( O s c i l l a t o r ) ( H a m m e r G r a b ) (Cutting Shoe) ( 2005) 45 e-Thesys(97 )

360 100cm 200cm ( 3-10)

3- 10 ( ) 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 1 1 1 1 1 100cm 80cm 1 0 0 K W 180 8 10 1 2 1 1 1 46

90 100cm

RT200 e-Thesys(97 )

1 2m ( 3-25)

3- 25 ( )

( 3 - 2 6 )

225 m 15m

3- 26 ( )47 e-Thesys(97 )

(3) M.H.L. ( 3-28) MASAGO HYDRAULIC LONG ARM BUCKET M.H.L. X Y ( 2006)

5.55m 5m 6m

3- 27 M.H.L. ( )

77 48 e-Thesys(97 )

192 6 99 93 ( 1994) (a) SPT-N 50 10cm 30cm (b) (c) 2 30 MASAGO PH ( 3-11 )

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3- 11 M.H.L. ( ) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 60~70T 80~100T MASAGO PH 4 300KW 1 1 1 1 1 1 1 1 1 1 1 2 1 1 1 150

MASAGO

MHL-60100 AY

60CM~120CM MASAGO

KODEN KE-200 8 10

PH e-Thesys(97 )

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4.1

( 2007)

4.1.1

(2001) ASTM D2487 ( 4-1

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4- 1 ( ) (mm) 300 (12in) 300-75 (12-3in) 75-19 (3-3/4in) 19-4.75(3/4in-No.4) 4.75-2.0 (No.4-No.10) 2.0-0.425 (No.10-No.40) 0.425-0.075 (No.40-No.200) 0.075(No.200) (Clay) 0.075(No.200)

(Silt)

PI 4 PI 4

4.1.2

( 4-2) ( 1994) 4- 2 SPT-N ( ) N N