| |
| Ground anchor systems are special application of PBL
post tensioning systems in geotechnical engineering. The anchors are
available in P.C.strand systems for using as permanent or temporary
anchors. |
|
Typical application of ground anchor systems are
- Soil stabilization during excavation
- Soil stabilization for slope stability
- Anchor for tension pile
- Anchor for tall structures foundation to ensure stability against
overturning
- Used as temporary anchor during erection of long span structures
- Strengthening of existing structures such as dam
|
 |
| Work method of ground anchor
systems |
PBL Ground anchors tendon sizes.
|
Strands 0.5" ,
U.T.S 1860 N/mm2 , 100 mm2
|
Number
of
anchor
|
Anchor type
|
Strand area of tendon mm2
|
Ultimate force U.T.S kN
|
Stressing force at 0.8 u.t.s.
kN
|
Wieght of Strand Bundle
|
|
|
1
|
105
|
100 |
186 |
149 |
0.79 |
|
2
|
|
200 |
372 |
298 |
1.57 |
|
3
|
M 405
|
300 |
558 |
446 |
2.35 |
|
4
|
|
400 |
744 |
595 |
3.14 |
|
5
|
|
500 |
930 |
744 |
3.93 |
|
6
|
M 705
|
600 |
1116 |
893 |
4.71 |
|
7
|
|
700 |
1302 |
1042 |
5.50 |
|
8
|
|
800 |
1488 |
1190 |
6.28 |
|
9
|
|
900 |
1674 |
1339 |
7.07 |
|
10
|
|
1000 |
1860 |
1488 |
7.85 |
|
11
|
M 1205
|
1100 |
2046 |
1637 |
8.63 |
|
12
|
|
1200 |
2232 |
1786 |
9.42 |
|
13
|
|
1300 |
2418 |
1934 |
10.21 |
|
14
|
|
1400 |
2604 |
2083 |
10.99 |
|
15
|
|
1500 |
2790 |
2232 |
11.78 |
|
16
|
|
1600 |
2976 |
2381 |
12.56 |
|
17
|
|
1700 |
3162 |
2530 |
13.35 |
|
18
|
M 1905
|
1800 |
3348 |
2678 |
14.13 |
|
19
|
|
1900 |
3534 |
2827 |
14.92 |
|
20
|
|
2000 |
3720 |
2976 |
15.70 |
|
21
|
|
2100 |
3906 |
3125 |
16.48 |
|
22
|
|
2200 |
4092 |
3274 |
17.27 |
|
23
|
|
2300 |
4278 |
3422 |
17.05 |
|
24
|
|
2400 |
4464 |
3571 |
18.84 |
|
25
|
|
2500 |
4650 |
3720 |
19.63 |
|
26
|
|
2600 |
4836 |
3869 |
20.41 |
|
28
|
|
2700 |
5022 |
4018 |
21.20 |
|
29
|
|
2800 |
5208 |
4166 |
21.98 |
|
30
|
M 3105
|
3000 |
5580 |
4464 |
23.55 |
|
|
|
Strands 0.6" , U.T.S 1860 N/mm2 ,
150 mm2
|
Number
of
anchor |
Anchor type
|
Strand area of tendon mm2
|
Ultimate force U.T.S kN
|
Stressing force at 0.8 u.t.s.
kN
|
Wieght of Strand Bundle
|
|
|
1
|
106
|
150 |
279 |
223 |
1.18 |
|
2
|
|
300 |
558 |
446 |
2.36 |
|
3
|
M 406
|
450 |
837 |
670 |
3.53 |
|
4
|
|
600 |
1116 |
893 |
4.71 |
|
5
|
|
750 |
1395 |
1116 |
5.89 |
|
6
|
M 706
|
900 |
1674 |
1339 |
7.07 |
|
7
|
|
1050 |
1953 |
1562 |
8.25 |
|
8
|
|
1200 |
2232 |
1786 |
9.42 |
|
9
|
|
1350 |
2511 |
2009 |
10.60 |
|
10
|
|
1500 |
2790 |
2232 |
11.78 |
|
11
|
M 1206
|
1650 |
3069 |
2455 |
12.96 |
|
12
|
|
1200 |
2232 |
1786 |
9.42 |
|
13
|
|
1300 |
2418 |
1934 |
10.21 |
|
14
|
|
1400 |
2604 |
2083 |
10.99 |
|
15
|
|
1500 |
2790 |
2232 |
11.78 |
|
16
|
|
1600 |
2976 |
2381 |
12.56 |
|
17
|
|
1700 |
3162 |
2530 |
13.35 |
|
18
|
M 1905
|
1800 |
3348 |
2678 |
14.13 |
|
19
|
|
1900 |
3534 |
2827 |
14.92 |
|
20
|
|
2000 |
3720 |
2976 |
15.70 |
|
21
|
|
2100 |
3906 |
3125 |
16.48 |
|
22
|
|
2200 |
4092 |
3274 |
17.27 |
|
23
|
|
2300 |
4278 |
3422 |
17.05 |
|
24
|
|
2400 |
4464 |
3571 |
18.84 |
|
25
|
|
2500 |
4650 |
3720 |
19.63 |
|
26
|
|
2600 |
4836 |
3869 |
20.41 |
|
28
|
|
2700 |
5022 |
4018 |
21.20 |
|
29
|
|
2800 |
5208 |
4166 |
21.98 |
|
30
|
M 3105
|
3000 |
5580 |
4464 |
23.55 |
|
|
|
