Chapter 4

Deep Foundation

Introduction

• Shallow foundation sometime subjected to bearing capacity failure and/or excessive settlement.

• The failure resulted by poor condition of existing soil.

• In such cases, deep or pile foundations may be used to support the structure.

Situation of Considering Pile Foundation

Classifications of Pile Foundation

Example 1

Example 2

Example 3

Example 4

Example 5

Pile Driving Formula

• Generally, no pile driving formula has been developed that gives accurate results for pile capacity

• Soil resistance does not remain constant during and after the pile driving operation

• Pile driving