ASCE Standard 36 2015

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ASCE Standard 36 – Standard Design and Construction Guidelines for Microtunneling

Published By	Publication Date	Number of Pages
ASCE	2015	135

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Category: ASCE

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Description

“Prepared by the Standard Design and Construction Guidelines for Microtunneling Committee of the Construction Institute of ASCE Standard Design and Construction Guidelines for Microtunneling, Standard ASCE/CI 36-15, covers the planning, design, materials, and construction for this trenchless method of installing pipelines. Microtunneling projects involve a remote-controlled boring machine, a laser guidance system, a jacking system for thrust, and continuous pressure on the face of the excavation to balance groundwater and earth pressures. The use of microtunneling has become a widely accepted means of pipeline construction, and this standard takes into account advances in technology and construction practice developed over the past 15 years. This new edition of Standard 36 expands and modifies the earlier standard so that users can better understand both the key concepts and technical details involved in a microtunneling project. The section on preparing contract documents, particularly drawings, technical specifications, and contractual specifications, has been thoroughly updated. Also revised are the qualifications of engineers who design microtunneling projects and of the contractors who construct them. New sections have been added on sustainability; regulations; detailed site investigations, especially geotechnical aspects; microtunneling design elements and operations; construction support services; and aspects of measurement and payment. Standard 36-15 is a vital reference for owners, engineers, contractors, suppliers, and manufacturers working on pipeline projects where microtunneling is an attractive option.”

PDF Catalog

PDF Pages	PDF Title
1	Cover
4	ASCE STANDARDS
6	PREFACE
8	ACKNOWLEDGMENTS
10	CONTENTS
14	PART I: GENERAL
16	1 SCOPE
18	2 REFERENCE DOCUMENTS 2.1 American Society of Civil Engineers (ASCE) 2.2 American Society for Testing and Materials (ASTM)
19	2.3 American Water Works Association (AWWA) 2.4 American Petroleum Institute (API)
20	2.5 European Standards 2.6 North American Society for Trenchless Technology (NASTT) 2.7 Other Standards
22	3 DEFINITIONS
28	4 ACRONYMS, ABBREVIATIONS, AND INITIALISMS
30	5 SUMMARY OF PRACTICE
32	PART II: PLANNING ASPECTS
34	6 INITIAL CRITERIA 6.1 Pipe Diameter and Grade
35	6.2 Depth 6.3 Routing
36	6.4 Shafts and Working Space 6.5 Sustainability
37	6.6 Regulations
38	7 SITE CONDITIONS 7.1 Land Use 7.2 Easements and Rights-of-Way 7.3 Underground Utilities and Other Facilities
39	7.4 Buried Objects 7.5 In-Line Microtunneling
40	7.6 Contaminated Ground and Groundwater 7.7 Special Considerations
42	8 PRELIMINARY GEOTECHNICAL CONSIDERATIONS
44	9 PROJECT LAYOUT 9.1 Layout for Efficient Microtunneling 9.2 Horizontal and Vertical Alignment
45	9.3 Service Connections 9.4 Effects on Adjacent Structures
48	10 COST CONSIDERATIONS 10.1 Direct Cost of Microtunneling
50	10.2 Indirect Social Effect Costs
51	10.3 Environmental Costs 10.4 Risk Analysis
52	10.5 Contingency Costs
54	PART III: DESIGN ASPECTS
56	11 DETAILED SITE INVESTIGATIONS 11.1 General 11.2 Geotechnical Investigation Approach and Methods
57	11.3 Important Geotechnical Characteristics
62	11.4 Geotechnical Reports 11.5 Utility Surveys 11.6 Traffic Flow and Access for Vehicles and Pedestrians
63	11.7 Environmental Conditions 11.8 Flood Zones
64	11.9 Seismic Conditions
66	12 MICROTUNNELING EQUIPMENT 12.1 General 12.2 MTBM
68	12.3 Control System
69	12.4 Handling of Spoils 12.5 Jacking System
70	12.6 Pipe Lubrication System 12.7 Power Supply
72	13 MICROTUNNELING DESIGN ELEMENTS 13.1 Design Memoranda and Technical Memoranda 13.2 Pipe Material Selection
73	13.3 Earth Loads on Pipe 13.4 Evaluation of Jacking Forces
74	13.5 Evaluation of Settlement Risks
75	13.6 Drilling Fluid Design
76	13.7 Special Considerations for Curved Drives
78	14 SHAFT CONSIDERATIONS 14.1 Location 14.2 Shaft Design Considerations 14.3 Groundwater Control
79	14.4 Design of Entry and Exit of Shafts
80	14.5 Thrust Blocks
81	14.6 Common Shafts
82	15 CONTRACT DOCUMENTS 15.1 General Considerations 15.2 General Conditions 15.3 Special and Supplementary Conditions 15.4 Technical Specifications
83	15.5 Plans
84	15.6 Geotechnical Investigations and Data 15.7 Microtunneling Contractor Qualifications
85	15.8 Dispute Resolution
88	PART IV: PIPE MATERIAL ASPECTS
90	16 PIPE CHARACTERISTICS 16.1 General Requirements 16.2 Material Types 16.3 Material Selection
91	16.4 Reference Product Standards 16.5 Scope and Range 16.6 Section Lengths 16.7 Mechanical Properties 16.8 Manufacturing and Quality Control
92	17 PIPE DESIGN 17.1 In-Use Loads 17.2 Installation Loads 17.3 Dimensional Criteria
93	17.4 Lubrication Ports
94	17.5 Joints
95	17.6 Resistance to the Environment
97	17.7 ANSI/NSF International 61 Certification
98	18 FIELD ASPECTS 18.1 Preinstallation Inspection 18.2 Postinstallation Inspection 18.3 Damage Correction
100	PART V: CONSTRUCTION ASPECTS
102	19 MICROTUNNELING OPERATION 19.1 Shafts 19.2 MTBM Launch
103	19.3 Microtunneling Process
104	19.4 Drilling Fluid Use during Construction 19.5 Guidance System
106	19.6 Lubricant System
107	19.7 Work Hours 19.8 MTBM Retrieval at Drive Completion
108	19.9 Wet Retrieval of MTBM
110	20 MACHINE PERFORMANCE 20.1 Annular Thickness, Annulus, and Annular Space
111	20.2 Overcut 20.3 Slurry or Auger System
112	20.4 Cutter Wheel Design and Selection
113	20.5 Slurry Separation Plant
114	20.6 Buried Objects and Obstructions
115	20.7 Steering
116	21 SUBMITTALS 21.1 Microtunneling
117	21.2 Qualifications of Personnel 21.3 Microtunneling Work Plan 21.4 Pipe Selection 21.5 Contingency Plans
118	21.6 Dewatering Plan 21.7 Additional Shop Drawings
120	22 SHAFTS AND TEMPORARY STRUCTURES 22.1 Shaft Design 22.2 Excavation Technique and Support Systems 22.3 Permits 22.4 Responsibility for Design Adequacy
121	22.5 Contractor Supervision 22.6 Public Safety 22.7 Ventilation Requirements
122	23 CONSTRUCTION SUPPORT SERVICES 23.1 Protection of Adjacent Structures 23.2 Inspection of the Work
124	24 REGULATIONS 24.1 Safety Regulations 24.2 Pollution Control 24.3 Erosion Control
126	25 INSTRUMENTATION AND MONITORING
128	26 RESTORATION AND CLEANUP
130	27 MEASUREMENT AND PAYMENT 27.1 Mobilization 27.2 Jacking and Receiving Shafts 27.3 Ground Improvement
131	27.4 Pipe 27.5 Microtunnel Installation 27.6 Rescue Shafts 27.7 Manhole and Access Installations 27.8 Site Restoration 27.9 Demobilization 27.10 Differing Site Conditions
132	REFERENCES
134	INDEX A B C D E F G H I J L M O P
135	R S U V W