Dot 11390 DS1.Pdf
Total Page:16
File Type:pdf, Size:1020Kb
NOTICE This document is disseminated under the sponsorship of the Department of Transportation in the interest of information exchange. The United States Governm&nt assumes no liability for its contents or use thereof. NOTICE The United States Government does not endorse products or manufacturers. Trade or manufacturers' names appear herein solely because they are considered essential to the object of this report. GENERAL DISCLAIMER This document may have problems that one or more ofthe following disclaimer statements refer to: • This document has been reproduced from the best copy furnished by the sponsoring agency. It is being released in the interest ofmaking available as much infonnation as possible. • This document may contain data which exceeds the sheet parameters. It was furnished in this condition by the sponsoring agency and is the best copy available. • This document may contain tone-on-tone or color graphs, charts and/or pictures which have been reproduced in black and white. • The document is paginated as sub~tted by the original source. • Portions ofthis document are not fully legible due to the historical nature ofsome ofthe material. However, it is the best reproduction available from the original submission. TKhnica' Report Documentation Page 1. Report No. 2 Goyernment Accession No. f3. Recipient SCatalog No. UMTA-MA-06-0156-86-1 PBa7 1489 1 2/AS 4. Title and Subtitle 5. Report Date WATER INTRUSION PROBLEMS IN TRANSIT TUNNELS. September 1986 6. Performing Organization Code 7. Author(s) TSC/DTS-77 P. Parks. J. Francis. A. Gor1ov, E. Gor1ova, J.D. Guertin, Jr. 8. Performing Organization Report No. DOT-TSC-UMTA-86-8 9. PerformIng Organization Name and Address 10. Work Unit No. (TAAIS) Paul Parks & Associates, Inc.* ~9~7~5~e1 100 Boylston Street Boston MA 02116 11. Contract or Grant NO:~ MA-06-0156'----_ DTUM60-83-C-71217 . " 12. Sponsoring Agency Name and Address 13. Type of Report and Period Coyered Department of Transportation Final Report Urban Mass Transportation Administration September 1983 - July 1985 Office of Technical Assistance Washington DC 20590 14. Sponsoring Agency Code URT-10 15 Supplementary Notes U.s. Department of Transportation Research and Special Programs Administration *Under contract to: Transportation Systems Center Cambridge MA 02142 16, Abstract This report presents the findings of five case studies in which an in-depth analysis was made of tunnel water intrusion problems in transit tunnels. Water intrusion parameters of transit systems in Atlanta; Boston, Buffalo, New York and Washington, DC, relating to geologic, hydraulic, design, construction and leakage problems which may be associated with tunnel water intrusion are examined. Special emphasis is placed on grouting applica tions to leaking and the recommended practices derived from 'past and current experiences. The report attempts to systematically analyze tunnel leakage problems and potential causes across several diverse transit systems. The results suggest that choices of remedies and maintenance control may relate to design and construction considerations, particularly those associated with original concrete processes and applications. Cost factors and comparisons, while systematically pursued, produced fewer insights than were expected. - -' .. 17, KeyWords Dewatering; Groundwater Con- 18. Distribution Statement trol; Grouting; MARTA; MBTA; NnA: NYCTA; Transit ''funnels; T~nne1 Con DOCUMENT IS AVAI.LABLE TO THE PUBLIC THROUGH struction; Tunnels & Tunneling; Water THE NATIONAL TECHNICAL INFORMATION SERVICE, Intrusion; WMATA SPRINGFIELD VIRGINIA 22'61 19. Sec\,mty Classlf. (of thiS repOrt) 20 Security C'anlt (of thiS page) 21. No. of Pages 22. Price UNCLASSIFIED UNCLASSIFIED 150 Form DOT F1700. 7 (8-72) ReproauC':lon of comCletee :age a.. :honzea \ PREFACE This report was prepared by Paul Parks and Associates, Inc., Boston, MA, between October 1983 and October 1984. The work was sponsored by the U.S. Department of Transportation, Urban Mass Transportation Administration (UMTA), under Contract No. DTUM60-83-C-71217. Howard Evoy of UMTA and James Lamond of the Transportation Systems Center (TSC) technically monitored the tasks and made necessary arrangements for visits to the various construction sites and subway systems, and meetings with members of the construction community. The objective of the contract was to perform case studies of five subway systems (Buffalo; Atlanta; Washington, DC; New York, and Boston) by collecting data on the geologic, hydraulic design, structural and construction parameters as they may relate to tunnel water intrusion, and to develop recommended practices. During the work, the detailed review of major grouting methods and technique was presented by Wallace Hayward Baker, Ph.D. His work and cooperation are gratefully acknowledged. The cooperation of the transit properties personnel listed below, who gave their time and assistance to the work performed, is greatly appreciated. They are: Dale Moeller - NFTA, Buffalo, NY Richard Flanagen - Goldberg, Zoino and ASSOCiates, Buffalo, NY John Gerlach - Goldberg, Zoino and Associates, Buffalo, NY Maurice Turner - MARTA, Atlanta, GA Thomas McGinnley - MARTA, Atlanta, GA John Carey - MBTA, Boston, MA Paul Pellagrini - MBTA, Boston, MA Larry Heflin - WHATA, Washington, DC Timothy Reed - WHATA, Washington, DC iii James Gould - Meuser-Rutledge-Johnston-Desimone, New York, NY John Ferrelli - NYCTA, New York, NY P. M. Rao - NYCTAj New York, NY· Also acknowledged is the assistance of the technical staff of Paul Parks and Associates, who provided typing, editing and compiling of the final report. iv TABLE OF CONTENTS Section INTRODUCTION ..•..•..••••.••.••..•..•• 1.1 Overview . 1 1.2 Purpose . 1 1.3 Scope and Methodology ••. 2 2. TECHNOLOGY REVIEW AND LITERATURE ANALySIS •••••.••.••.•..•..•..•.• 4 2.1 Purpose " . 4 2.2 Procedure " . 4 2.3 Computer-Based Literature File••. 4 3. OVERVIEW OF WATER INTRUSION PROBLEMS ..•..••.••.•••.•.•.••..•..•.. 9 3. , Introduction . 9 3.2 Major Paths of Water Intrusion.•..••.••.•••••.•..•..•..•..•. 9 3.2.1 Shrinkage Cracks ...................•..•.............• 10 3.2.2 Construction Joints in Concrete Lining .•••.••••••••.• 10 3.2.3 Concrete Deterioration and Structural Failure••..•.•• 11 3.2.4 Other Types of Water Intrusion Paths ••••••••••••••.•• 11 3.3 Problems Caused by Water Intrusion in Tunnels and Stations.• 11 3.4 Remedial Measures to Control or to Stop Water Leakage ••..•.. 12 3.5 Overview of Case Studies '.•. 13 4. GROUTING FOR GROUND WATER CONTROL IN COMPLETED RAPID TRANSIT TUNN ELS •••••••••••••••••••.••••••••••••••••••••••••••.••••••••. 24 4.1 Introduction••••••••.•. 24 4.2 Cement-Based Grouts .••. 25 4.2.1 Fillers and Admixtures •..•.••..•..•. 25 4.2.2 Design and Application Principles••. 26 Chemica1 Grou ts . 27 4.3.1 Silicates . 27 4.3.2 Acrylamides . 28 4.3.3 Water Reactive Polyurethanes••.•..•.••••••••••••••••• 29 4.3.4 Lignosulphonates ..•..........................•.•.. 29 4.3.5 Phenop lasts•............•..•.....•..•..•..•..•.... 30 4.3.6 Aminoplasts ...•.••. 30 4.3.7 New Products ••••••. 30 4.4 Cement/Chemical Mixtures .....•..•...........•..•..•..•..•..• 30 v " TABLE OF CONTENTS (CONTINUED) Section Page 5. CASE STUDY No.1 - NIAGARA FRONTIER TRANSIT AUTHORITY (NFTA) , BUFFALO, NY.. ..••. .•. ••. •...•..•. ••..•. .•..• •..•.••.•• .••. ••.••.• 32 5.1 Introduction . 32 5.2 Geological and Groundwater Conditions•..••..•.•...•..•.•..•. 32 5.3 Impact of Goundwater Conditions on Design •..••..•.••..•.•••• 33 5.4 Tunnel Environmental and Structural Description ..•.•••• ~ .••. 34 5.5 Water Intrusion Problems - Construction Dewatering .....•..•. 35 5.6 Grouting for Water Control..•.••.••..•.•••.••.••...•.•.•..•• 37 5.7 Chemical Grouting " . 38 5.8 Grou t Type •..•..••••...... '•....•..-.•..•..••. __.•..• '..• ~ .....•.'. 38 5.9 Chemical Grouting Techniques .••.•••.•..••.••.••.••.••..•.••. 39 5.10 Cement Grouting•..••.•..•••••.••.•..••..•..•..••.•-..••••. ~.~ 40 5. 11 Cement Grouting Techniques ..•..•..••.•..•..•••.••.•.••.••.•• 40 5. 12 Grou ting Results " '. 41 6. CASE STUDY No. 2 - METROPOLITAN ATLANTA RAPID TRANSIT AUTHORITY (MARTA), ATLANTA, GA •..••.••.••.••.••.•...•...,••••• 0'............. 47 6.1 Introduction.•••••.••...•.......••.••. ;.~.............•.••.• 47 6.2 General Information....••..•..•..•..•..••••.•••.••.• ~....... 48 6.3 Tunnel Environmental and Structural Description............. 48 6.3.1 Geological and Groundwater Conditions•..••.••. ~~ .••.• 48 6.3.2 Structural Description..•••.• ~ ; •..••.•..•..: .. 48 6.4 Tunnel Construction Methods Related to Water Control........ 54 6.5 Major Leak Locations and Their Detrimental Effects in Tunnels and Stations '...... 54 6.6 Remedial Measures for Water ControL......................... 61 6.6.1 In-House Remedial Measures........................... 61 6.6.2 Tunnel Ceiling Leak Repairs by Contracted Service.... 65 6.7 Conclusions. ................................................ 70 7. CASE STUDY No.3 - MASSACHUSETTS BAY TRANSPORTATION AUTHORITY (t-1BTA) , BOSTON, MA............................................... 72 7.1 Introduction .••..••.••..•• ~· ••.. -~ .•.••• ~ ••.• ~........ •.•.•... 72 7.2 General Information and History of the Problems............. 73 7.3 Major Leak Locations and Their Detrimental Effect in Tunnels and Stations•..••.•.•••••.••.••. ~;.................. 73 Red Line (North Extension) •••.••..•.••..•..•.•••••.•• 73 Red Line (South Extension) .••.••..• ~ .•••• ~ .•.•...•... 75 Blue Line - Aquarium Station•..••.••.•••••..•..•..•.. 77 vi TABLE