Civil Engineering

Basic Soil Test on Sub-grade Soil Material Flexible Pavement Design on Road Linking

Basic Soil Test on Sub-grade Soil Material Flexible Pavement Design on Road Linking

PREFACE

This case study is an existing pathway or fort path linking Ugwuji and Campus 111 (IMT) for proposed road construction by the government of Enugu State.

This project encloses the following

– The condition of the existing sub-grade and its suitability for use as a good sub-grade soil material by processes of different lab tests.

– Using the group index method and CBR method to design a flexible pavement on the pathway under consideration.

– The optimum moisture content (OMC) and the Maximum Dry Density (MDD) which are obtained by various laboratory test with a view of applying corresponding values in the field.

TABLE OF CONTENT

Title page
Approval Page
Abstract
Table of Content

CHAPTER ONE
INTRODUCTION
1.1 Introduction —————————————————– 1
1.2 Background of the study————————————– 2
1.3 Statement of the problem————————————- 2
1.4 Objective of the study —————————————- 3
1.5 Significance of the study ———————————— 3
1.6 Scope of the study ——————————————- 4
1.7 Limitations of the study————————- ———— 4

CHAPTER TWO
LITERATURE REVIEW
2.1 Introduction……………………………………………. 6
2.2 Benefits of Design —————————————— 9
2.3 Result and Process —————————————– 10
CHAPTER THREE
SYSTEM ANALYSIS AND DESIGN
3.1 Introduction —-………………………………….. 11
3.2 Problem Identification…………………………… 11
3.3 Feasibility Study………………………………… 11
3.4 System Analysis……………………………………… 11
3.5 System Design…………………………………………… 12
3.6 Program Coding……………………………………….. 12
3.7 Program Testing………………………………. 12
3.8 System Implementation…………………………….. 13
3.9 The Organizational Structure……………………… 13
3.10 Demographic Variables…………………………… 15
3.11 Data Flow Diagram of the Present System………. 15
3.12 Information Flow………………………………… 16
3.13 Weakness Identified…………………………….. 16
3.14 High-Level Model of the Proposed System……. 16

CHAPTER FOUR
INTRODUCTION
4.1 Introduction—————————————– 18
4.2 Objectives of the New System———————- 18
4.3 Main Menu——————————————– 18
4.4 File —————————————————- 19
4.5 Update———————————————– 19
4.6 Report———————————————– 20
4.7 Help————————————————- 20
4.8 Database Specification————————– 20
4.9 Course Registration—————————– 21
4.10 Departmental Registration——————– 21
4.11 Student Result———————————- 22
4.11.1 Student Information Form——————- 23
4.12 Input Format———————————- 23
4.13 Output Format——————————- 23
4.14 Mathematical Specifications—————- 23
4.15 Overall Data Flow Diagram——————- 23
4.16 Data Dictionary——————————– 29
4.17 Choice of Programming Language—————— 29
4.18 System Documentation and Implementation———- 30
4.19 System Requirement————————————– 30
4.20 Hardware Requirement———————————- 30
4.21 Software Requirements——————————— 30
4.22 How To Install the Software————————– 31
4.23 Training of Operators and Application Details— 31
4.24 Training of Operators——————————– 31
4.25 Application Details———————————- 31
4.26 Implementation Detail—————————— 32
4.27 Direct Changeover———————————– 32
4.28 Phase Segmented Changeover——————— 32
4.29 Parallel Changeover——————————– 32
4.30 Changeover Recommended———————- 32
4.31 Commissioning
4.32 Maintenance Details

CHAPTER FIVE
SUMMARY, CONCLUSION AND RECOMMENDATION
5.1 Summary —————————————————– 34
5.2 Conclusion —————————————————- 34
5.3 Recommendation ———————————————- 34
References
Appendix

Chapter One

COLLECTION OF SAMPLES AND LABORATORY TESTING PROGRAM

The test carried out in this project was on a distributed soil sample.

This implies collecting soil samples that are disfigured in their natural shape.

Soil samples were collected on three (3) trial pits along Ugwuaji and Campus 111 IMT Enugu. A total of three (3) samples were collected from the trial pits (one from each pit) using a pick is and spade. The samples were taken at 1.0m depth in each pit. The samples were put in polythene bags and labelled A, B, C. The samples were spread on the floor of the soil laboratory and stones were removed for seven (7) days to allow for air drying.

The laboratory testing program comprises mechanical analysis, compaction test and Waterberg limit tests, and the California bearing ratio (CBR) test.

The objectives of the laboratory testing program were;

1. To obtain general information regarding the nature of the soil and their variation with depth throughout the length of the road under consideration.

2. To obtain information regarding the strength characteristics of the soil.

3. To obtain information that will enable engineers to group soils according to their appearances of the purposes of complying with different soils.

References

– Berry, Peter L and Reild, David (1986) An introduction to soil mechanics. McGraw Hill Book Company (UK) Limited Berkshire.

– Craig K.R. (1994) Soil mechanics fourth Edition Van Nostrand Reinhold (UK) Co Ltd. Molly Millers Lane, Wokingham, Berkshire, England.



Copyright © 2021 Author(s) retain the copyright of this article.
This article is published under the terms of the Creative Commons Attribution License 4.0

WeCreativez WhatsApp Support
We are here to answer your questions. Ask us anything!
Hi, how can we help?