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Preliminary Design for NATM Tunnel Support in Soil
    J. Geotech. Engrg. 118, 558 (1992); http://dx.doi.org/10.1061/(ASCE)0733-9410(1992)118:4(558) (18 pages)
              1                                            2
    Eric Leca and G. Wayne Clough, Fellow, ASCE
    1
     Virginia Polytech.Inst. and State Univ., Blacksburg, VA.EcoleNationale des PontsetChaussées, ENPC, 93167 Noisy ‐le‐Grand, France
    2
     Dean of Coll. of Engrg., Virginia Polytech. Inst. and State Univ., Blacksburg, VA 24061
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    Abstract
    References (13)

    Design of tunnels constructed with the new Austrian tunneling method (NATM) is considered. With this method the

    tunnel is generally excavated using hand‐mining equipment and immediately supported with a continuous shell of

    shotcrete. The shotcrete acts as a preliminary support during the construction. A liner made of concrete is usually

    installed later to ensure the long‐term stability of the tunnel wall. The construction process of NATM tunnels is

    analyzed using the finite element method. The softening technique, currently used for the analysis of NATM tunnels,

    is improved and applied to a parametric study of ovoid transportation tunnels constructed in undrained clays. Based

    on this study, a simplified method is provided for the preliminary design of the NATM tunnel support. The method

    allows the estimation of moments and thrusts acting on the liner for a range of commonly encountered conditions.

    Design values are shown to be primarily dependent on soil deformation properties, initial stress conditions, and

    amounts of stress release in the ground prior to shotcreting.

    © 1992 ASCE


    KEYWORDS

    ASCE SUBJECT HEADINGS
Tunnels, Tunnel construction, Design, Tunnel linings, Soil‐structure interaction, Clays, Shotcrete


ARTICLE DATA
DIGITAL OBJECT IDENTIFIER
http://dx.doi.org/10.1061/(ASCE)0733-9410(1992)118:4(558)

PUBLICATION DATA


ISSN
0733-9410 (print)
Publisher
ASCE



                                  For access to fully linked references, you need to log in.




Title:

PRELIMINARY DESIGN FOR NATM TUNNEL SUPPORT IN SOIL

Accession Number:

00621090

Availability:

American Society of Civil Engineers



345 East 47th Street

New York, NY 10017-2398 USA

Find a library where document is available


Order URL: http://worldcat.org/issn/07339410

Abstract:

A finite element is used in a parametric study of the excavation and support of a shallow tunnel using the NATM (New Austrian
Tunnelling Method). The results are then cast in a form so that the moments and thrusts in a proposed liner can be easily obtained.
The method only addresses the initial liner system. Using the same approach, a theoretical estimate can be obtained for the
maximum settlement generated at ground surface. The method described is expected to assist in trade-off analyses and provide
information to help guide better use of the more sophisticated analyses. The study considers the problem of NATM tunnels
constructed in undrained clays. Details of the study are described, and the results are discussed.

Corporate Authors:

American Society of Civil Engineers
345 East 47th Street

New York, NY 10017-2398 USA


Authors:

LECA, E

Clough, G W



Pagination:

p. 558-575

Publication Date:

1992-4

Serial:

Journal of Geotechnical Engineering

Volume: 118

Issue Number: 4

Publisher: American Society of Civil Engineers

ISSN: 0733-9410

Features:

Appendices (2) ; Figures; References

Index Terms:

Clay; Excavation and tunneling; NATM (Tunneling); New Austrian Tunneling Method; Saturated soils; Structural design;
Tunnel design; Tunnel lining; Tunnel supports; Tunneling; Tunnels; Undrained conditions

Subject Areas:

Bridges and other structures; Geotechnology; Highways; I42: Soil Mechanics

Files:

HRIS

Last Modified:

Apr 30 1992 12:00AM


More Articles from this Serial Issue:


BEARING CAPACITY OF EXPANDED BASE PILES WITH COMPACTED CONCRETE SHAFTS. DISCUSSION
BUILDING RESPONSE TO EXCAVATION-INDUCED SETTLEMENT. CLOSURE TO DISCUSSION
CONSTRUCTIOON INDUCED MOVEMENTS OF INSITU WALLS. DISCUSSION
DYNAMIC EXPERIMENTS ON TWO PILE GROUPS
EFFECTIVE COHESION FOR COMPACTED CLAY
EMPIRICAL ESTIMATION OF DOUBLE-LAYER REPULSIVE FORCE BETWEEN TWO INCLINED CLAY PARTICLES OF
FINITE LENGTH
GENERALIZED STATE PARAMETERS FOR PARTLY SATURATED SOILS
KETTLEMAN HILLS WASTE LANDFILL SLOPE FAILURE I: LINER-SYSTEM PROPERTIES. DISCUSSION
LA VILLITA DAM RESPONSE DURING FIVE EARTHQUAKES INCLUDING PERMANENT DEFORMATION. DISCUSSION
LESSONS LEARNED FROM COMPACTED CLAY LINING. DISCUSSION
MODELING DESICCATING BEHAVIOR OF MINE TAILINGS
RELIABILITY MODEL FOR SOIL LINER: POSTCONSTRUCTION. DISCUSSION
SETTLEMENT AND MOISTURE MOVEMENT IN COLLAPSIBLE SOILS. DISCUSSION
SIMPLE PROCEDURE FOR DETERMINING CAP-PLASTICITY-MODEL PARAMETERS. DISCUSSION
SOFTENING OF FILL SLOPES DUE TO MOISTURE INFILTRATION. DISCUSSION
SOIL-SUCTION-POTENTIAL MODEL
STABILIZING COMPACTED CLAY AGAINST CHEMICAL ATTACK. DISCUSSION
       STRENGTH CORRELATION FACTOR FOR RESIDUAL SOILS




       Preliminary Design for NATM Tunnel Support in Soil

       byEric Leca, (Virginia Polytech. Inst. and State Univ., Blacksburg, VA; EcoleNationale des
       PontsetChaussées, ENPC, Paris, France) and G. Wayne Clough, F.ASCE, (Dean of the Coll. of
       Engrg., Virginia Polytech. Inst. and State Univ., Blacksburg, VA)

       Journal of Geotechnical Engineering, Vol. 118, No. 4, April 1992, pp. 558-575,
       (doi http://dx.doi.org/10.1061/(ASCE)0733-9410(1992)118:4(558))

            Purchase this Article/Access full text
            Permissions for Reuse



Document        Journal Paper
type:


Abstract:       Design of tunnels constructed with the new Austrian tunneling method (NATM) is
                considered. With this method the tunnel is generally excavated using hand-mining
                equipment and immediately supported with a continuous shell of shotcrete. The shotcrete
                acts as a preliminary support during the construction. A liner made of precast concrete
                segments is usually installed later to ensure the long-term stability of the tunnel wall. The
                construction process of NATM tunnels is analyzed using the finite element method. The
                softening technique, currently used for the analysis of NATM tunnels, is improved and
                applied to a parametric study of ovoid transportation tunnels constructed in undrained
                clays. Based on this study, a simplified method is provided for the preliminary design of
                the NATM tunnel support. The method allows the estimation of moments and thrusts
                acting on the liner for a range of commonly encountered conditions. Design values are
                shown to be primarily dependent on soil deformation properties, initial stress conditions,
and amounts of stress release in the ground prior to shotcreting.




    Preliminary Design for NATM Tunnel Support in Soil
    J. Geotech. Engrg. 118, 558 (1992); http://dx.doi.org/10.1061/(ASCE)0733-9410(1992)118:4(558) (18 pages)
              1                                            2
    Eric Leca and G. Wayne Clough, Fellow, ASCE
    1
     Virginia Polytech.Inst. and State Univ., Blacksburg, VA.EcoleNationale des PontsetChaussées, ENPC, 93167 Noisy ‐le‐Grand, France
    2
     Dean of Coll. of Engrg., Virginia Polytech. Inst. and State Univ., Blacksburg, VA 24061
         Alerts
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o       Alert Me When Corrected
         Tools
o       Download Citation
o       Add to MyScitation
o       Permissions
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         Share
o       Email Abstract
o        Connotea
o        CiteULike
o        del.icio.us
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o       Add to Facebook

    Abstract
    References (13)

    Design of tunnels constructed with the new Austrian tunneling method (NATM) is considered. With this method the

    tunnel is generally excavated using hand‐mining equipment and immediately supported with a continuous shell of

    shotcrete. The shotcrete acts as a preliminary support during the construction. A liner made of concrete is usually

    installed later to ensure the long‐term stability of the tunnel wall. The construction process of NATM tunnels is

    analyzed using the finite element method. The softening technique, currently used for the analysis of NATM tunnels,

    is improved and applied to a parametric study of ovoid transportation tunnels constructed in undrained clays. Based

    on this study, a simplified method is provided for the preliminary design of the NATM tunnel support. The method

    allows the estimation of moments and thrusts acting on the liner for a range of commonly encountered conditions.

    Design values are shown to be primarily dependent on soil deformation properties, initial stress conditions, and

    amounts of stress release in the ground prior to shotcreting.
© 1992 ASCE


KEYWORDS

ASCE SUBJECT HEADINGS
Tunnels, Tunnel construction, Design, Tunnel linings, Soil‐structure interaction, Clays, Shotcrete


ARTICLE DATA
DIGITAL OBJECT IDENTIFIER
http://dx.doi.org/10.1061/(ASCE)0733-9410(1992)118:4(558)

PUBLICATION DATA


ISSN
0733-9410 (print)
Publisher
ASCE



                               For access to fully linked references, you need to log in.




   Welcome to ProQuest-CSA, your Guide to Discovery.ProQuest-CSA helps
   researchers worldwide find and manage relevant information in their field. If you're a
   member of an academic institution you may have access to CSA Illumina. Please contact
   your library to find out.



  Preliminary design for NATM tunnel support in soil.
  Leca, E | Clough, G W
  American Society of Civil Engineers. Journal of Geotechnical Engineering. Vol. 118, no. 4, pp.
  558-576. 1992

  Design of tunnels constructed with the new Austrian tunneling method (NATM) is considered. With this
  method the tunnel is generally excavated using hand-mining equipment and immediately supported
  with a continuous shell of shotcrete. The shotcrete acts as a preliminary support during the
  construction. A liner made of concrete is usually installed later to ensure the long-term stability of the
  tunnel wall. The method allows the estimation of moments and thrusts acting on the liner for a range of
  commonly encountered conditions. Design values are shown to be primarily dependent on soil
  deformation properties, initial stress conditions, and amounts of stress release in the ground prior to
  shotcreting.

    Descriptors: Stresses | Shotcrete | Liners | Excavation | Stability | Preliminary designs |
    Construction | Concrete construction | Concretes | Civil engineering | Walls | Thrust | Deformation |
  Geotechnical engineering
Preliminary Design for NATM Tunnel Support in Soil
byEric Leca, (Virginia Polytech. Inst. and State Univ., Blacksburg, VA; EcoleNationale des Ponts et
Chaussées, ENPC, Paris, France) and G. Wayne Clough, F.ASCE, (Dean of the Coll. of Engrg., Virginia
Polytech. Inst. and State Univ., Blacksburg, VA)

Journal of Geotechnical Engineering, Vol. 118, No. 4, April 1992, pp. 558-575,
(doi http://dx.doi.org/10.1061/(ASCE)0733-9410(1992)118:4(558))

   Purchase this Article/Access full text
   Permissions for Reuse


Document        Journal Paper
type:

Abstract:       Design of tunnels constructed with the new Austrian tunneling method (NATM) is
                considered. With this method the tunnel is generally excavated using hand-mining
                equipment and immediately supported with a continuous shell of shotcrete. The shotcrete
                acts as a preliminary support during the construction. A liner made of precast concrete
                segments is usually installed later to ensure the long-term stability of the tunnel wall. The
                construction process of NATM tunnels is analyzed using the finite element method. The
                softening technique, currently used for the analysis of NATM tunnels, is improved and
                applied to a parametric study of ovoid transportation tunnels constructed in undrained
                clays. Based on this study, a simplified method is provided for the preliminary design of
                the NATM tunnel support. The method allows the estimation of moments and thrusts
                acting on the liner for a range of commonly encountered conditions. Design values are
                shown to be primarily dependent on soil deformation properties, initial stress conditions,
                and amounts of stress release in the ground prior to shotcreting.



ASCE Subject Headings:
  Clays
  Construction
  Design
  Linings
  Shotcrete
  Soil-structure interactions

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Preliminary design for natm tunnel support in soil

  • 1. Preliminary Design for NATM Tunnel Support in Soil J. Geotech. Engrg. 118, 558 (1992); http://dx.doi.org/10.1061/(ASCE)0733-9410(1992)118:4(558) (18 pages) 1 2 Eric Leca and G. Wayne Clough, Fellow, ASCE 1 Virginia Polytech.Inst. and State Univ., Blacksburg, VA.EcoleNationale des PontsetChaussées, ENPC, 93167 Noisy ‐le‐Grand, France 2 Dean of Coll. of Engrg., Virginia Polytech. Inst. and State Univ., Blacksburg, VA 24061 Alerts o Alert Me When Cited o Alert Me When Corrected Tools o Download Citation o Add to MyScitation o Permissions o Blog This Article o Print-Friendly o Research Toolkit Share o Email Abstract o Connotea o CiteULike o del.icio.us o BibSonomy o Tweet this Article o Add to Facebook Abstract References (13) Design of tunnels constructed with the new Austrian tunneling method (NATM) is considered. With this method the tunnel is generally excavated using hand‐mining equipment and immediately supported with a continuous shell of shotcrete. The shotcrete acts as a preliminary support during the construction. A liner made of concrete is usually installed later to ensure the long‐term stability of the tunnel wall. The construction process of NATM tunnels is analyzed using the finite element method. The softening technique, currently used for the analysis of NATM tunnels, is improved and applied to a parametric study of ovoid transportation tunnels constructed in undrained clays. Based on this study, a simplified method is provided for the preliminary design of the NATM tunnel support. The method allows the estimation of moments and thrusts acting on the liner for a range of commonly encountered conditions. Design values are shown to be primarily dependent on soil deformation properties, initial stress conditions, and amounts of stress release in the ground prior to shotcreting. © 1992 ASCE KEYWORDS ASCE SUBJECT HEADINGS
  • 2. Tunnels, Tunnel construction, Design, Tunnel linings, Soil‐structure interaction, Clays, Shotcrete ARTICLE DATA DIGITAL OBJECT IDENTIFIER http://dx.doi.org/10.1061/(ASCE)0733-9410(1992)118:4(558) PUBLICATION DATA ISSN 0733-9410 (print) Publisher ASCE For access to fully linked references, you need to log in. Title: PRELIMINARY DESIGN FOR NATM TUNNEL SUPPORT IN SOIL Accession Number: 00621090 Availability: American Society of Civil Engineers 345 East 47th Street New York, NY 10017-2398 USA Find a library where document is available Order URL: http://worldcat.org/issn/07339410 Abstract: A finite element is used in a parametric study of the excavation and support of a shallow tunnel using the NATM (New Austrian Tunnelling Method). The results are then cast in a form so that the moments and thrusts in a proposed liner can be easily obtained. The method only addresses the initial liner system. Using the same approach, a theoretical estimate can be obtained for the maximum settlement generated at ground surface. The method described is expected to assist in trade-off analyses and provide information to help guide better use of the more sophisticated analyses. The study considers the problem of NATM tunnels constructed in undrained clays. Details of the study are described, and the results are discussed. Corporate Authors: American Society of Civil Engineers
  • 3. 345 East 47th Street New York, NY 10017-2398 USA Authors: LECA, E Clough, G W Pagination: p. 558-575 Publication Date: 1992-4 Serial: Journal of Geotechnical Engineering Volume: 118 Issue Number: 4 Publisher: American Society of Civil Engineers ISSN: 0733-9410 Features: Appendices (2) ; Figures; References Index Terms: Clay; Excavation and tunneling; NATM (Tunneling); New Austrian Tunneling Method; Saturated soils; Structural design; Tunnel design; Tunnel lining; Tunnel supports; Tunneling; Tunnels; Undrained conditions Subject Areas: Bridges and other structures; Geotechnology; Highways; I42: Soil Mechanics Files: HRIS Last Modified: Apr 30 1992 12:00AM More Articles from this Serial Issue: BEARING CAPACITY OF EXPANDED BASE PILES WITH COMPACTED CONCRETE SHAFTS. DISCUSSION BUILDING RESPONSE TO EXCAVATION-INDUCED SETTLEMENT. CLOSURE TO DISCUSSION CONSTRUCTIOON INDUCED MOVEMENTS OF INSITU WALLS. DISCUSSION DYNAMIC EXPERIMENTS ON TWO PILE GROUPS EFFECTIVE COHESION FOR COMPACTED CLAY
  • 4. EMPIRICAL ESTIMATION OF DOUBLE-LAYER REPULSIVE FORCE BETWEEN TWO INCLINED CLAY PARTICLES OF FINITE LENGTH GENERALIZED STATE PARAMETERS FOR PARTLY SATURATED SOILS KETTLEMAN HILLS WASTE LANDFILL SLOPE FAILURE I: LINER-SYSTEM PROPERTIES. DISCUSSION LA VILLITA DAM RESPONSE DURING FIVE EARTHQUAKES INCLUDING PERMANENT DEFORMATION. DISCUSSION LESSONS LEARNED FROM COMPACTED CLAY LINING. DISCUSSION MODELING DESICCATING BEHAVIOR OF MINE TAILINGS RELIABILITY MODEL FOR SOIL LINER: POSTCONSTRUCTION. DISCUSSION SETTLEMENT AND MOISTURE MOVEMENT IN COLLAPSIBLE SOILS. DISCUSSION SIMPLE PROCEDURE FOR DETERMINING CAP-PLASTICITY-MODEL PARAMETERS. DISCUSSION SOFTENING OF FILL SLOPES DUE TO MOISTURE INFILTRATION. DISCUSSION SOIL-SUCTION-POTENTIAL MODEL STABILIZING COMPACTED CLAY AGAINST CHEMICAL ATTACK. DISCUSSION STRENGTH CORRELATION FACTOR FOR RESIDUAL SOILS Preliminary Design for NATM Tunnel Support in Soil byEric Leca, (Virginia Polytech. Inst. and State Univ., Blacksburg, VA; EcoleNationale des PontsetChaussées, ENPC, Paris, France) and G. Wayne Clough, F.ASCE, (Dean of the Coll. of Engrg., Virginia Polytech. Inst. and State Univ., Blacksburg, VA) Journal of Geotechnical Engineering, Vol. 118, No. 4, April 1992, pp. 558-575, (doi http://dx.doi.org/10.1061/(ASCE)0733-9410(1992)118:4(558)) Purchase this Article/Access full text Permissions for Reuse Document Journal Paper type: Abstract: Design of tunnels constructed with the new Austrian tunneling method (NATM) is considered. With this method the tunnel is generally excavated using hand-mining equipment and immediately supported with a continuous shell of shotcrete. The shotcrete acts as a preliminary support during the construction. A liner made of precast concrete segments is usually installed later to ensure the long-term stability of the tunnel wall. The construction process of NATM tunnels is analyzed using the finite element method. The softening technique, currently used for the analysis of NATM tunnels, is improved and applied to a parametric study of ovoid transportation tunnels constructed in undrained clays. Based on this study, a simplified method is provided for the preliminary design of the NATM tunnel support. The method allows the estimation of moments and thrusts acting on the liner for a range of commonly encountered conditions. Design values are shown to be primarily dependent on soil deformation properties, initial stress conditions,
  • 5. and amounts of stress release in the ground prior to shotcreting. Preliminary Design for NATM Tunnel Support in Soil J. Geotech. Engrg. 118, 558 (1992); http://dx.doi.org/10.1061/(ASCE)0733-9410(1992)118:4(558) (18 pages) 1 2 Eric Leca and G. Wayne Clough, Fellow, ASCE 1 Virginia Polytech.Inst. and State Univ., Blacksburg, VA.EcoleNationale des PontsetChaussées, ENPC, 93167 Noisy ‐le‐Grand, France 2 Dean of Coll. of Engrg., Virginia Polytech. Inst. and State Univ., Blacksburg, VA 24061 Alerts o Alert Me When Cited o Alert Me When Corrected Tools o Download Citation o Add to MyScitation o Permissions o Blog This Article o Print-Friendly o Research Toolkit Share o Email Abstract o Connotea o CiteULike o del.icio.us o BibSonomy o Tweet this Article o Add to Facebook Abstract References (13) Design of tunnels constructed with the new Austrian tunneling method (NATM) is considered. With this method the tunnel is generally excavated using hand‐mining equipment and immediately supported with a continuous shell of shotcrete. The shotcrete acts as a preliminary support during the construction. A liner made of concrete is usually installed later to ensure the long‐term stability of the tunnel wall. The construction process of NATM tunnels is analyzed using the finite element method. The softening technique, currently used for the analysis of NATM tunnels, is improved and applied to a parametric study of ovoid transportation tunnels constructed in undrained clays. Based on this study, a simplified method is provided for the preliminary design of the NATM tunnel support. The method allows the estimation of moments and thrusts acting on the liner for a range of commonly encountered conditions. Design values are shown to be primarily dependent on soil deformation properties, initial stress conditions, and amounts of stress release in the ground prior to shotcreting.
  • 6. © 1992 ASCE KEYWORDS ASCE SUBJECT HEADINGS Tunnels, Tunnel construction, Design, Tunnel linings, Soil‐structure interaction, Clays, Shotcrete ARTICLE DATA DIGITAL OBJECT IDENTIFIER http://dx.doi.org/10.1061/(ASCE)0733-9410(1992)118:4(558) PUBLICATION DATA ISSN 0733-9410 (print) Publisher ASCE For access to fully linked references, you need to log in. Welcome to ProQuest-CSA, your Guide to Discovery.ProQuest-CSA helps researchers worldwide find and manage relevant information in their field. If you're a member of an academic institution you may have access to CSA Illumina. Please contact your library to find out. Preliminary design for NATM tunnel support in soil. Leca, E | Clough, G W American Society of Civil Engineers. Journal of Geotechnical Engineering. Vol. 118, no. 4, pp. 558-576. 1992 Design of tunnels constructed with the new Austrian tunneling method (NATM) is considered. With this method the tunnel is generally excavated using hand-mining equipment and immediately supported with a continuous shell of shotcrete. The shotcrete acts as a preliminary support during the construction. A liner made of concrete is usually installed later to ensure the long-term stability of the tunnel wall. The method allows the estimation of moments and thrusts acting on the liner for a range of commonly encountered conditions. Design values are shown to be primarily dependent on soil deformation properties, initial stress conditions, and amounts of stress release in the ground prior to shotcreting. Descriptors: Stresses | Shotcrete | Liners | Excavation | Stability | Preliminary designs | Construction | Concrete construction | Concretes | Civil engineering | Walls | Thrust | Deformation | Geotechnical engineering
  • 7. Preliminary Design for NATM Tunnel Support in Soil byEric Leca, (Virginia Polytech. Inst. and State Univ., Blacksburg, VA; EcoleNationale des Ponts et Chaussées, ENPC, Paris, France) and G. Wayne Clough, F.ASCE, (Dean of the Coll. of Engrg., Virginia Polytech. Inst. and State Univ., Blacksburg, VA) Journal of Geotechnical Engineering, Vol. 118, No. 4, April 1992, pp. 558-575, (doi http://dx.doi.org/10.1061/(ASCE)0733-9410(1992)118:4(558)) Purchase this Article/Access full text Permissions for Reuse Document Journal Paper type: Abstract: Design of tunnels constructed with the new Austrian tunneling method (NATM) is considered. With this method the tunnel is generally excavated using hand-mining equipment and immediately supported with a continuous shell of shotcrete. The shotcrete acts as a preliminary support during the construction. A liner made of precast concrete segments is usually installed later to ensure the long-term stability of the tunnel wall. The construction process of NATM tunnels is analyzed using the finite element method. The softening technique, currently used for the analysis of NATM tunnels, is improved and applied to a parametric study of ovoid transportation tunnels constructed in undrained clays. Based on this study, a simplified method is provided for the preliminary design of the NATM tunnel support. The method allows the estimation of moments and thrusts acting on the liner for a range of commonly encountered conditions. Design values are shown to be primarily dependent on soil deformation properties, initial stress conditions, and amounts of stress release in the ground prior to shotcreting. ASCE Subject Headings: Clays Construction Design Linings Shotcrete Soil-structure interactions