ABSTRACT
The study cover a view ad detailed explanation of the modification required to be carried out on the main access road lining federal secretariat and IMT civil soil laboratory and industrial centre order to update it’s services functions. The need for easing the flow of traffic on this access road has risen, since it’s a busy area in the institution. It’s required that the road be modernized and generally upgraded. The existing road is no longer in peak condition and is not capable of performing it’s functions as a result of traffic growth. The study modification therefore involved the assessment of the roads present condition involving carrying out soil test and survey as to what could be done and how best to enhance traffic.
TABLE OF CONTENTS
Title page - - - - - - - - i
Certification page - - - - - ii
Dedication - - - - - - - iii
Acknowledgement - - - - - - iv
Abstract - - - - - - - - v
Table of Content - - --- - - - vi
CHAPTER ONE
General Introduction - - - - - 1
Design Application - - - - - - 3
1.2 Scope of The Project - - - - - 5
1.3 Aim and Objective - - - - - 6
1.4 Reconnaissance Survey - - - - 8
Chain Survey (Linear Measurement) - -- 8
Station Marking - - - - - - 9
Factors Influencing Station Marking- - - 9
Route Survey - - - - - - - 11
CHAPTER TWO
Project Field leveling works - - - - 13
Instruments used in leveling - - - - 13
Profile leveling - - - - - - - 15
Cross sectional leveling - - - - - 15
Objectives of leveling - - - - - 16
Property lines - - - - - - - 17
Intersecting Roads - - - - - - 18
Definition of some leveling terminologies -- - 18
Setting up and leveling the instrument - - 20
Procedure for leveling operation - - - 23
Adjustment and precaution - - - - 24
Survey Data -- - - - - - -
Computation of Area - - - - - 27
Cross sectional Area - - - - - - 33
Calculation of Earthwork - - - - - 33
CHAPTER THREE
Soil Analysis -- - - - - - 38
Collection and preliminary preparation of soil sample 38
Mechanical analysis - - - - - - 40
Apparatus Used - - - - - - 41
Sources of Errors - - - - - - 42
Atterberg/Consistency limit test - - -
Liquid Limit Test - - - - - - 45
Procedure - - - - - - - - 45
Apparatus Used - - - - - - 47
Plasticity Index -- - - - - - - 47
Apparatus Required - - - - - - 47
Precautions - - - - - - - 49
Compaction Test - - - - - - 50
Apparatus Used - - - - - - 52
Procedure - - - - - - - - 53
Precaution - - - - - - -
Test Result on Compactions - - - - 54
The California bearing Ratio test (CBR) Aim - 55
Apparatus Used - - - - - - 53
Procedure - - - - - - - - 53
Calculations for CBR Values - - - - 53
Soaked Sample - - -- - - - 54
CHAPTER FOUR
Geometric Element Design - - - - 56
Basic design Parameters - - - - - 57
Gradient - - - - - - - -
Horizontal Alignment - - - - - 66
Horizontal Alignment Design Factor - - - 66
Factors to be Considered in the Design - - 67
Controls for Horizontal Alignment - - - 67
Design of Horizontal Curve - - - - 67
Design of Super-elevation for the curve - - 69
Cross sectional elements of the Road - - 73
CHAPTER FIVE
Drainage Design - - - - - - 77
Basic policy on drainage design - - - 77
Economics for drainage design - - - - 79
Roadside drainage channels - - - - 79
Erosion protection - - - - - - 80
State of work in the actual road Construction - 81
Equipment used in Road Construction - - 83
Nomenclatures -- - - - - - - 84
Recommendation - - - - - - 90
Conclusion - - - - - - - 92
References - - - - -