Micropile casing is used as deep foundation structure for supporting buildings works and infrastructures.
The application is undertaken by drilling into the ground and inserting casing segments threaded together, the desired depth is reached. Grout is injected into the casing, spreading, where necessary, through perforations (più che perforations metterei holes/valves) in the casing, which allows for the direct formation of a pillar in the ground.
Developments in technique have extended the use of micropiles to soldier pile wall structures, umbrella roof systems for the temporary support of tunnels, jet-grouting and mines.
Ring Bit
Sacrificial head
Customised bit
Male/Female
Male/Male + Sleeve
Female/Female + Nipple
Valve (12mm/16mm)
Holes (12mm/16mm)
Sleeve
Injection head
Hoisting plug
API Machine Joints
Ankorig focuses on helping you save time because getting the job done quickly is where the real money lies.
Only with the precision process and component is possible to achieve the very best results in micropile casing.
Standard threads:
We also produce special threads
Double or triple-start threads
The typical joint involves a Male/Female thread union between a series of pieces of pipe.
Based on the demands of the customer, Ankorig can produce Male/ Male/Sleeve or -Female/Female/Nipple joints.
Diam. 12 2-3 Bar
Diam. 16 2-3 Bar
Diam. 16 20 Bar
To determine the main variables of the tube to be used as a drilling rod, you can use the computer at the touch of the button.
Inserting diameter and thickness determines the resistant section, the flexural module and the linear weight.
Active CalculatorDiameter: mm
Thickness: mm
Section: mm2
Wf: mm3 (Flexural Module)
Weight: kg/m
Table of sizes
| kg / m d (mm) |
|---|
| 48,3 |
| 60,3 |
| 70,0 |
| 73,0 |
| 76,1 |
| 82,5 |
| 88,9 |
| 95,0 |
| 101,6 |
| 108,0 |
| 114,3 |
| 121,0 |
| 127,0 |
| 133,0 |
| 139,7 |
| 146,0 |
| 152,4 |
| 159,0 |
| 168,3 |
| 177,8 |
| 193,7 |
| 203,0 |
| 219,1 |
| 229,0 |
| 244,5 |
| 273,0 |
| 298,5 |
| 323,9 |
| 339,7 |
| 355,6 |
| 406,4 |
| 457,2 |
| 508,0 |
| 609,6 |
| 3,6 | 4,0 | 4,5 | 5,0 | 5,6 | 5,9 |
|---|---|---|---|---|---|
| 4,0 | 4,4 | 4,9 | 5,3 | 5,9 | 6,2 |
| 5,0 | 5,6 | 6,2 | 6,8 | 7,6 | 7,9 |
| 5,9 | 6,5 | 7,3 | 8,0 | 8,9 | 9,3 |
| 6,2 | 6,8 | 7,6 | 8,4 | 9,3 | 9,8 |
| 6,4 | 7,1 | 7,9 | 8,8 | 9,7 | 10,2 |
| 7,0 | 7,7 | 8,7 | 9,6 | 10,6 | 11,1 |
| 7,6 | 8,4 | 9,4 | 10,3 | 11,5 | 12,1 |
| 8,1 | 9,0 | 10,0 | 11,1 | 12,3 | 13,0 |
| 8,7 | 9,6 | 10,8 | 11,9 | 13,3 | 13,9 |
| 9,3 | 10,3 | 11,5 | 12,7 | 14,1 | 14,8 |
| 9,8 | 10,9 | 12,2 | 13,5 | 15,0 | 15,8 |
| 10,4 | 11,5 | 12,9 | 14,3 | 15,9 | 16,7 |
| 11,0 | 12,1 | 13,6 | 15,0 | 16,8 | 17,6 |
| 11,5 | 12,7 | 14,3 | 15,8 | 17,6 | 18,5 |
| 12,1 | 13,4 | 15,0 | 16,6 | 18,5 | 19,5 |
| 12,6 | 14,0 | 15,7 | 17,4 | 19,4 | 20,4 |
| 13,2 | 14,6 | 16,4 | 18,2 | 20,3 | 21,3 |
| 13,8 | 15,3 | 17,1 | 19,0 | 21,2 | 22,3 |
| 14,6 | 16,2 | 18,2 | 20,1 | 22,5 | 23,6 |
| 15,5 | 17,1 | 19,2 | 21,3 | 23,8 | 25,0 |
| 16,9 | 18,7 | 21,0 | 23,3 | 26,0 | 27,3 |
| 17,7 | 19,6 | 22,0 | 24,4 | 27,2 | 28,7 |
| 19,1 | 21,2 | 23,8 | 26,4 | 29,5 | 31,0 |
| 22,2 | 24,9 | 27,6 | 30,8 | 32,4 | |
| 23,7 | 26,6 | 29,5 | 33,0 | 34,7 | |
| 26,5 | 29,8 | 33,0 | 36,9 | 38,8 | |
| 29,0 | 32,6 | 36,2 | 40,4 | 42,6 | |
| 31,5 | 35,4 | 39,3 | 43,9 | 46,2 | |
| 41,3 | 46,1 | 48,5 | |||
| 43,2 | 48,3 | 50,9 | |||
| 49,5 | 55,3 | 58,2 | |||
| 55,7 | 62,3 | 65,6 | |||
| 62,0 | 69,3 | 73,0 | |||
| 83,4 | 87,8 |
| 6,3 | 7,1 | 8,0 | 8,8 | 9,5 | 10,0 |
|---|---|---|---|---|---|
| 6,5 | 7,2 | 7,9 | 8,6 | 9,1 | 9,4 |
| 8,4 | 9,3 | 10,3 | 11,2 | 11,9 | 12,4 |
| 9,9 | 11,0 | 12,2 | 13,3 | 14,2 | 14,8 |
| 10,4 | 11,5 | 12,8 | 13,9 | 14,9 | 15,5 |
| 10,8 | 12,1 | 13,4 | 14,6 | 15,6 | 16,3 |
| 11,8 | 13,2 | 14,7 | 16,0 | 17,1 | 17,9 |
| 12,8 | 14,3 | 16,0 | 17,4 | 18,6 | 19,4 |
| 13,8 | 15,4 | 17,2 | 18,7 | 20,0 | 21,0 |
| 14,8 | 16,5 | 18,5 | 20,1 | 21,6 | 22,6 |
| 15,8 | 17,7 | 19,7 | 21,5 | 23,1 | 24,2 |
| 16,8 | 18,8 | 21,0 | 22,9 | 24,5 | 25,7 |
| 17,8 | 19,9 | 22,3 | 24,3 | 26,1 | 27,4 |
| 18,7 | 21,0 | 23,5 | 25,6 | 27,5 | 28,8 |
| 19,7 | 22,0 | 24,6 | 26,9 | 28,9 | 30,3 |
| 20,7 | 23,2 | 26,0 | 28,4 | 30,5 | 32,0 |
| 21,7 | 24,3 | 27,2 | 29,8 | 32,0 | 33,5 |
| 22,7 | 25,4 | 28,5 | 31,1 | 33,5 | 35,1 |
| 23,7 | 26,6 | 29,8 | 32,6 | 35,0 | 36,7 |
| 25,2 | 28,2 | 31,6 | 34,6 | 37,2 | 39,0 |
| 26,6 | 29,9 | 33,5 | 36,7 | 39,4 | 41,4 |
| 29,1 | 32,7 | 36,6 | 40,1 | 43,1 | 45,3 |
| 30,5 | 34,3 | 38,5 | 42,1 | 45,3 | 47,6 |
| 33,0 | 37,1 | 41,6 | 45,6 | 49,1 | 51,5 |
| 34,6 | 38,8 | 43,6 | 47,8 | 51,4 | 54,0 |
| 37,0 | 41,5 | 46,6 | 51,1 | 55,0 | 57,8 |
| 41,4 | 46,5 | 52,3 | 57,3 | 61,7 | 64,8 |
| 45,4 | 51,0 | 57,3 | 62,8 | 67,7 | 71,1 |
| 49,3 | 55,4 | 62,3 | 68,3 | 73,6 | 77,4 |
| 51,8 | 58,2 | 65,4 | 71,8 | 77,3 | 81,3 |
| 54,2 | 61,0 | 68,5 | 75,2 | 81,0 | 85,2 |
| 62,1 | 69,9 | 78,6 | 86,2 | 92,9 | 97,7 |
| 70,0 | 78,8 | 88,6 | 97,3 | 105,0 | 110,0 |
| 77,9 | 87,7 | 98,6 | 108,0 | 117,0 | 123,0 |
| 93,7 | 105,0 | 119,0 | 130,0 | 141,0 | 148,0 |
| 11,0 | 12,5 | 14,2 | 16,0 | 17,5 |
|---|---|---|---|---|
| 10,1 | 11,0 | |||
| 13,4 | 14,7 | 16,1 | 17,5 | 18,5 |
| 16,0 | 17,7 | 19,5 | 21,3 | 22,6 |
| 16,8 | 18,6 | 20,6 | 22,5 | 23,9 |
| 17,7 | 19,6 | 21,7 | 23,7 | 25,3 |
| 19,4 | 21,6 | 23,9 | 26,2 | 28,0 |
| 21,1 | 23,5 | 26,1 | 28,8 | 30,8 |
| 22,8 | 25,4 | 28,3 | 31,2 | 33,4 |
| 24,6 | 27,5 | 30,6 | 33,8 | 36,3 |
| 26,3 | 29,4 | 32,8 | 36,3 | 39,0 |
| 28,0 | 31,4 | 35,0 | 38,8 | 41,8 |
| 29,8 | 33,4 | 37,4 | 41,4 | 44,6 |
| 31,5 | 35,3 | 39,5 | 43,8 | 47,2 |
| 33,1 | 37,1 | 41,6 | 46,1 | 49,8 |
| 34,9 | 39,2 | 43,9 | 48,8 | 52,7 |
| 36,6 | 41,1 | 46,1 | 51,3 | 55,4 |
| 38,3 | 43,1 | 48,4 | 53,8 | 58,2 |
| 40,1 | 45,1 | 50,7 | 56,4 | 61,0 |
| 42,7 | 48,0 | 53,9 | 60,1 | 65,0 |
| 45,2 | 50,9 | 57,3 | 63,8 | 69,1 |
| 49,5 | 55,8 | 62,8 | 70,1 | 76,0 |
| 52,1 | 58,7 | 66,1 | 73,7 | 80,0 |
| 56,4 | 63,7 | 71,7 | 80,1 | 87,0 |
| 59,1 | 66,7 | 75,2 | 84,0 | 91,2 |
| 63,3 | 71,5 | 80,6 | 90,1 | 97,9 |
| 71,0 | 80,3 | 90,6 | 101,0 | 110,0 |
| 78,0 | 88,1 | 99,5 | 111,0 | 121,0 |
| 84,8 | 95,9 | 108,0 | 121,0 | 132,0 |
| 89,1 | 101,0 | 114,0 | 128,0 | 139,0 |
| 93,4 | 106,0 | 119,0 | 134,0 | 146,0 |
| 107,0 | 121,0 | 137,0 | 154,0 | 168,0 |
| 121,0 | 137,0 | 155,0 | 174,0 | 190,0 |
| 135,0 | 153,0 | 173,0 | 194,0 | 212,0 |
| 162,0 | 184,0 | 208,0 | 234,0 | 255,0 |
| 20,0 | 22,2 | 25,0 | 28,0 | 30,0 |
|---|---|---|---|---|
| 24,6 | ||||
| 26,1 | ||||
| 27,7 | ||||
| 30,8 | 33,0 | 35,4 | ||
| 34,0 | 36,5 | 39,4 | ||
| 37,0 | 39,8 | 43,1 | ||
| 40,2 | 43,4 | 47,2 | 50,8 | 52,9 |
| 43,4 | 47,0 | 51,1 | 55,2 | 57,7 |
| 46,5 | 50,4 | 55,0 | 59,6 | 62,3 |
| 49,8 | 54,1 | 59,2 | 64,2 | 67,3 |
| 52,7 | 57,3 | 62,9 | 68,3 | 71,7 |
| 55,7 | 60,6 | 66,6 | 72,5 | 76,2 |
| 59,0 | 64,3 | 70,7 | 77,1 | 81,1 |
| 62,1 | 67,7 | 74,6 | 81,4 | 85,8 |
| 65,3 | 71,2 | 78,5 | 85,9 | 90,5 |
| 68,5 | 74,9 | 82,6 | 90,4 | 95,4 |
| 73,1 | 79,9 | 88,3 | 96,8 | 102,0 |
| 77,8 | 85,1 | 94,2 | 103,0 | 109,0 |
| 85,6 | 93,8 | 104,0 | 114,0 | 121,0 |
| 90,2 | 98,9 | 110,0 | 121,0 | 128,0 |
| 98,2 | 108,0 | 120,0 | 132,0 | 140,0 |
| 103,0 | 113,0 | 126,0 | 139,0 | 147,0 |
| 111,0 | 122,0 | 135,0 | 149,0 | 159,0 |
| 125,0 | 137,0 | 153,0 | 169,0 | 180,0 |
| 137,0 | 151,0 | 169,0 | 187,0 | 199,0 |
| 150,0 | 165,0 | 184,0 | 204,0 | 217,0 |
| 158,0 | 174,0 | 194,0 | 215,0 | 229,0 |
| 165,0 | 182,0 | 204,0 | 226,0 | 241,0 |
| 190,0 | 210,0 | 235,0 | 261,0 | 278,0 |
| 216,0 | 238,0 | 266,0 | 296,0 | 316,0 |
| 241,0 | 266,0 | 298,0 | 331,0 | 353,0 |
| 291,0 | 321,0 | 360,0 | 401,0 | 429,0 |
Steels used for micropiles
| Steel quality |
S235 | S275 | S355 | AJ55 | AK55 | AK80 |
|---|---|---|---|---|---|---|
| Yield strength |
≥ 235N/mm2 | ≥ 275N/mm2 | ≥ 355N/mm2 | ≥ 379N/mm2 | ≥ 379N/mm2 | ≥ 552N/mm2 |
| Tensile strength |
≥ 355N/mm2 | ≥ 410N/mm2 | ≥ 490N/mm2 | ≥ 517N/mm2 | ≥ 655N/mm2 | ≥ 690N/mm2 |
Conversion 1,0 mpa = 1,0 n/mm2
the specified values are valid for a thickness of 5,0mm – 16,0mm