SR EN 14199:2006

Execution of special geotechnical works - Micropiles

1.1 This Standard establishes general principles for the execution of micropiles. They are for: - drilled micropiles a shaft diameter not greater than 300 mm; - driven micropiles a shaft diameter or a maximum shaft cross sectional extension not greater than 150 mm. 1.2 Micropiles are structural members to transfer actions to the ground and may contain bearing elements to transfer directly or indirectly loads and or to limit deformations. Their shaft and base resistance may be improved (mostly by grouting) and they may be constructed with (see Figure 1): - uniform cross section (straight shaft); or - telescopically changing shaft dimensions; - shaft enlargements; and/or - base enlargement. 1.3 Other than practical considerations, there are no limitations regarding, length, rake (definition of rake, see Figure 2), slenderness ratio or shaft and base enlargements. 1.4 The provisions of the Standard apply to (see Figure 3): - single micropiles; - micropile groups; - reticulated micropiles; - micropile walls. 1.5 The micropiles which are the subject of this Standard can be installe

34.12

Status : Withdrawn
Approval date : 6/30/2006
Publish date : 7/2/2006
Withdrawal date : 10/30/2015
Number of pages : 50
ICS : 93.020 Earthworks. Excavations. Foundation construction. Underground works
Technical Committee : 361 - Geotechnic

Relations with other standards: