A Case Study on Excavation Stabilization Using Ground Anchors and High Pressure Injec
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A Case Study on Excavation Stabilization Using Ground Anchors and High Pressure Injec
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A Case Study on Excavation Stabilization Using Ground Anchors and High Pressure Injection

Author: Ali Parsapajouh, Siavash Litkouhi, Bahram Amini | Size: 2.5 MB | Format: PDF | Quality: Unspecified | Publisher: ASCE | Year: 2012 | pages: 9


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In this study, case study about excavation stabilised using anchors and
high pressure injectionis presented. The land of the project was located in the
northern zone of Tehran with shallow water table. Despite of dewatering operation,
the existence of groundwaterwas still a challenging issue concerning the construction
process.According to the pull-out tests, the gravity-grouted anchors could not satisfy
the design criteria. Therefore, the post-grouting method was employed to increase the
tensile capacity of anchors by enlarging the grout body of straight shafted gravity
grouted anchors. Finally, the loading tests were conducted and anchors locked-off at
75% of designed loads. It should be mentioned that the cast-in place concrete piles
were constructed around the excavation zone as the soldier beams. Satisfactory post
construction performance of this project proves the successful application of 3900 m
of ground anchors in 2800 m2 of excavation wall for this deep excavation.

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