We drove fifty four″ OD and 66″ OD concrete cylinder piles for 18 miles. In this certain Image, we're jetting the piles all the way down to a predetermined depth then they ended up finished with huge hydraulic and air hammers. Photograph credit score: APE Troubleshooting and Common Issues
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A hydraulic hammer incorporates the usage of an exterior Electrical power supply to raise the hammer to the very best of its stroke.
Submit-grouting within the bond size can maximize frictional forces with encompassing soils and attain larger capability. Micropiles can serve to “stitch” the soil with each other within just predicted shear zones to reinforce mass steadiness. In liquefiable profiles, micropiles can transfer loads to skilled bearing strata to adhere to seismic design and style necessities.
Addressing these issues calls for careful consideration to element, along with actual-time adjustments. For instance, misalignment might be corrected in the usage of onboard alignment tools and repositioning mechanisms that Most recent templates are equipped with.
Before beginning, calculate how over and over the pile driver has to strike the bottom for making the pile as deep as demanded. It depends upon the soil and also the driving program. If it will require extra hits than we assumed it might, You will find a challenge While using the soil or perhaps the driving process.
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The piles are socketed adequately in the hard strata / rock required to establish the capacity which comes mostly in friction from the socket.
Should any deviations occur, stop driving instantly and make the necessary changes. Hold a detailed log on the driving depth and any challenges encountered for every pile, as this will likely help in top quality Command and future reference.
Reinforcing metal, generally an all-thread bar is inserted in to the casing. click here High-strength cement grout is then pumped in to the casing. The casing could lengthen to the total depth or stop earlier mentioned the bond zone, While using the reinforcing bar extending to the complete depth.
When pile driving starts, regular monitoring is vital. Observe the habits of your pile as well as the template for almost any indications of shifting or misalignment.
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There are several things which can cause a metal pile head to deform or The pinnacle of the timber pile to split or splinter. These incorporate:
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