Why does The O-cell typically is attached to the tip end of a pipe pile prior to installation (driving) or installed in the bottom of the open excavation for cast-in-place piles and drilled shaft foundations?

Why does The O-cell typically is attached to the tip end of a pipe pile prior to installation (driving) or installed in the bottom of the open excavation for cast-in-place piles and drilled shaft foundations?

Principles of Foundation Engineering (MindTap Course List)

8th Edition

ISBN:9781305081550

Author:Braja M. Das

Publisher:Braja M. Das

Chapter9: Pile Foundations

Section: Chapter Questions

Problem 9.3P

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Concept explainers

Measuring site work, Excavation and Piling

Bid drawings typically include very little material about the precise requirements of site work operations, measuring site work and excavation work differs from measuring most other works on a construction project. The actual site work conditions are not provided and also the dimensions of the excavations are not known during the pre-construction phase. The precise measurement of the excavation and backfill of the earth material and topsoil is important for a contractor to decide upon the total cost required for the process. All the works should be carried out under OSHA (Occupational Safety and Health Administration) standards to ensure the safety of the workers.

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Similar questions

As driven piles penetrate into a saturated clay soil, why the material in the vicinity of the pile is remolded?
i) How do the soil stress states and strain states change by the installation and structural loads? ii) Is the analysis of the load capacity of a pile is exact or is it an approximation? please tell this is in brief. please reply quickly.
Give me right solution according to the question.
Find the weight of the extra soil needed to be hauled off site after the terrain in the given diagram leveled to an elevation of 0ft. The soil has unit weight of 125pcf and the width of the pile is 28ft?
How does the Pile capacity can be determined?
The selection of pile foundations for any project requires that the designer and contractor consider various practical issues to ensure an adequate rate of progress (completed installations) and proper (quality) installations (no damage, etc.). For driven wood piles, driven steel-shell and concrete-filled piles, and augered-type castin-place piles, list some of these practical issues that probably would have influence on the type chosen (such as transporting longer piles to the job site, a possible problem in an urban setting, and onsite storage).
Explain the methods of determining load carrying capacity of a pile.
Describe about the Relation between pile capacity and driving.
Provide Feld’s rule for determining group capacity of pile groups ?
Explain the difference in manufacturing a cold rolled sheet pile and a hot rolled sheet pile. When is a driving template necessary? Name and describe two types of hammers used to install sheet pile. List 4 or the 6 methods used to install sheet pile in hard soil/driving conditions. Can a Driving Template have a second use, explain? What determines the size of a strut? When determining Web Yielding, explain what the distance “k” means.
Which one is a better choice, a large diameter piles or a system of several smallerpiles with the same load capacity?
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