My WebLink
|
Help
|
About
|
Sign Out
Browse
201800874
LFImages
>
Deeds
>
Deeds By Year
>
2018
>
201800874
Metadata
Thumbnails
Annotations
Entry Properties
Last modified
12/9/2019 6:44:22 PM
Creation date
2/12/2018 3:11:51 PM
Metadata
Fields
Template:
DEEDS
Inst Number
201800874
There are no annotations on this page.
Document management portal powered by Laserfiche WebLink 9 © 1998-2015
Laserfiche.
All rights reserved.
/
19
PDF
Print
Pages to print
Enter page numbers and/or page ranges separated by commas. For example, 1,3,5-12.
After downloading, print the document using a PDF reader (e.g. Adobe Reader).
Show annotations
View images
View plain text
It is important to note that the tern "damage' refers to threshold damage as defined by the <br />(UJSBM) and (BSI) standards. Critical failure of the object of study depends on many additional <br />factors. <br />2.0 SITE MOBILIZATION <br />2.1 PILE DRIVING <br />The installation of piles is a common practice on many construction projects. Piles are used to <br />support many of the structures we use every day. They are used as barriers that confine ground <br />pressures and prevent unwanted movement. Driving pile as with many other construction <br />activities and even daily activities of the human population and the earth itself cause vibration. <br />Driving pile however at times is a necessary process. <br />201800874 <br />Excessive vibration levels from construction activities, although temporary may reach levels that <br />can damage utilities. The Peak Particle Velocity (PPV) is appropriate for evaluating impulsive <br />vibration associated with vibration sources such as pile driving and the resulting stresses that <br />potentially are damaging to underground utilities. <br />3.0 DRIVING PILE <br />From BS 5228-2:2009 Annex B section 4.4 we are given the following criteria. <br />a) Maximum PPV for intermittent or transient vibrations 30mm/s <br />b) Maximum PPV for continuous vibrations 15mm/s <br />4 <br />
The URL can be used to link to this page
Your browser does not support the video tag.