2011年8月1日星期一

Sheet Pile Driving Frequently Problems

Hard to insert Sheet Pile by large resistance force

There are two main reasons : solid and gravel sand layer; corrosion and deformation of connected sheet pile lockings. For the former case, in the pile tip's forwarding direction, cut the side angle to the slope of 1:2 to 1:4, and pile by high-pressure water flush or vibration method instead of hard hit with a hammer only; for the latter one, remove rust, grease and correct lockings to reduce resistance.



Pile tilting in driving direction

When pile larsen sheet pile, the connection resistance is relatively large. And the unbalanced given forces at both sides of cross section make piles easily to incline. To prevent such a tilt, in the piling direction set clip plates at the interlockings of steel sheet pile. At the same time, pre-calculate the position of every plates on purlin for calibration at any time. If the tilt is inevitable, the correction method is to use wire rope and hoist to reversely pull the sheet pile and then hammer, or use a special wedge-shaped sheet pile to correct.



Sinking of both sheet pile and neighborhood inserted piles

The reason is caused by the increasing resistance force of steel sheet pile bending notch. The treatment measure is promptly correct the tilting piles, use angle steel to fix the problem piles temporarily by welding with inserted pile(s).



Using of Corner Pile
For the need of pit structure, often we need corner pile, a special shaped pile to change the piling axis direction. Corner pile is normally made by larsen sheet pile cut along the midline, then combine and weld by actual needs.
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Article Source:
Sheet Pile China Manufacturer, Supplier - Shunli Sheet Piling Industrial Co., Ltd.

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