同济大学：《地下工程》课程电子教案（讲稿）03 Planning the use of the Subsurface

CONTENTS 1.Introduction to Planning 2.Preliminary planning 3.Overall planning 4.Detailed planning 5.Financial Planning 6.Reliability of Forecasting 百年同桥

2 1. Introduction to Planning 2. Preliminary planning 3. Overall planning 4. Detailed planning 5. Financial Planning 6. Reliability of Forecasting CONTENTS

1.Introduction to Planning People may ask: Is underground construction expensive? 百年同濟

3 People may ask: Is underground construction expensive? 1. Introduction to Planning

1.Introduction to Planning Cost implications of accounting for life-cycle costs Construction method Initial capital cost ratio Total life-cycle cost ratio Surface transit 1 1.0 Elevated transit 2.8 1.4 Cut and cover 3.7 0.5 Bored tunnel 3.2 0.4 Tunnels and tunneling,2005 百年同濟 TONGILUNIVERSITY

4 1. Introduction to Planning Cost implications of accounting for life-cycle costs Construction method Initial capital cost ratio Total life-cycle cost ratio Surface transit 1 1.0 Elevated transit 2.8 1.4 Cut and cover 3.7 0.5 Bored tunnel 3.2 0.4 From ：Tunnels and tunneling, 2005

1.Introduction to Planning People may ask: Can we really afford not to use underground space? 百年同濟

5 People may ask: Can we really afford not to use underground space? 1. Introduction to Planning

1.Introduction to Planning 百年同海 TONGILUNIVERSITY

6 1. Introduction to Planning

1.Introduction to Planning 百年同源 TONGII UNIVERSITY

7 1. Introduction to Planning

1.Introduction to Planning 佳之娜服饰 月在 百年同濟 TONGII UNIVERSITY

8 1. Introduction to Planning

1.Introduction to Planning Not using underground space is non-sustainable, Using it without planning is also non-sustainable 百年同海 TONGII UNIVERSITY

9 Not using underground space is non-sustainable, Using it without planning is also non-sustainable. 1. Introduction to Planning

1.Introduction to Planning Before planning the use of the subsurface,we should keep following principal questions in mind: 1)What are the advantages of using underground space based on? 2)Who benefit from the advantages of using underground space? 3)What factors are to be taken into account to assess the advantages? 4)What is the distinction between direct and indirect advantages? 5)How to value the advantages? 百年同桥 TONGILUNIVERSITY

10 Before planning the use of the subsurface, we should keep following principal questions in mind: 1）What are the advantages of using underground space based on? 2）Who benefit from the advantages of using underground space? 3） What factors are to be taken into account to assess the advantages? 4） What is the distinction between direct and indirect advantages? 5）How to value the advantages? 1. Introduction to Planning

1.Introduction to Planning What are the advantages of using underground space based on? 百年同濟 TONGII UNIVERSITY

11 1. Introduction to Planning What are the advantages of using underground space based on?