CALL US

+86 17838360708

Mechanical behaviour of a sprayed concrete lining isolated

Mechanical behaviour of a sprayed concrete lining isolated

Mechanical behaviour of a sprayed concrete lining isolated ...

Mar 01, 2015  Laboratory tests were conducted to examine the mechanical behaviour of a sprayed concrete lining isolated by a sprayed waterproofing membrane. The loading applied to

get price

Mechanical behaviour of a sprayed concrete lining isolated ...

Mechanical behaviour of a sprayed concrete lining isolated by a sprayed waterproofing membrane Masanari Nakashimaa,*, Anna-Lena Hammerb, Markus Thewesb, Mohammed

get price

Mechanical behaviour of a sprayed concrete lining isolated ...

Mechanical behaviour of a sprayed concrete lining isolated by a sprayed waterproofing membrane. ... In this study, the mechanical behaviour of an SCL with a

get price

Mechanical behaviour of a sprayed concrete lining isolated ...

Request PDF Mechanical behaviour of a sprayed concrete lining isolated by a sprayed waterproofing membrane A waterproofing membrane has an important role in a

get price

Mechanical behaviour of a sprayed concrete lining isolated ...

Mechanical behaviour of a sprayed concrete lining isolated by a sprayed waterproofing membrane View / Open Files Nakashima et al_Mechanical behaviour of a

get price

‪Mohammed Z.E.B. Elshafie‬ - ‪Google Scholar‬

Mechanical behaviour of a sprayed concrete lining isolated by a sprayed waterproofing membrane M Nakashima, AL Hammer, M Thewes, M Elshafie, K Soga Tunnelling and

get price

Sprayed concrete lining versus traditional hand mining at ...

Article. Sprayed concrete lining versus traditional hand mining at Bank station upgrade, London, UK. February 2020; Civil Engineering 173(3):1-39

get price

Types of Piles: Their Characteristics and General Use

Mechanical protection of wood piles in waterfront structures has been used success­ fully to protect new piles and to repair piles damaged by abrasion or by marine

get price

Numerical Analysis of the Contact Behavior of a Polymer ...

The European Federation of National Associations Representing for Concrete (EFNARC) proposed thin spray-on liners (TSLs)—polymer-based, permanent supporting

get price

Mechanical behaviour of a sprayed concrete lining isolated ...

Mechanical behaviour of a sprayed concrete lining isolated by a sprayed waterproofing membrane By Masanari Nakashimaa, Anna-Lena Hammer, Markus Thewes, Mohammed Elshafie and

get price

‪Mohammed Z.E.B. Elshafie‬ - ‪Google Scholar‬

Mechanical behaviour of a sprayed concrete lining isolated by a sprayed waterproofing membrane M Nakashima, AL Hammer, M Thewes, M Elshafie, K Soga Tunnelling and Underground Space Technology 47, 143-152 , 2015

get price

MODERN COMPOSITE SPRAYED CONCRETE WATERPROOF

In these case studies the composite sprayed concrete waterproof lining with spray applied membrane was applied as the functional waterproofing and support of the tunnel. The design of ... Tensile bonding strength and monolithic mechanical behaviour are key properties of this technical solution. A. The membrane is exposed to water through a ...

get price

Structural properties and durability of a sprayed ...

Nov 01, 2016  Tensile bond between this material and sprayed concrete has been studied in six series of tests, each with five or six specimens. These were 100-mm cubes: a 50-mm concrete layer, one or two coats of HF primer about 0.1 mm thick, then membrane sprayed in two 1.5-mm layers, and after curing for an hour, a second 50-mm layer of concrete.

get price

DESIGN OF SPRAYED CONCRETE FOR UNDERGROUND

SPRAYED CONCRETE Depending on the mechanical properties of the ground, and on the dimension and depth of the opening, sprayed concrete can ... 3.4.1 - Studies on fresh sprayed concrete behavior - - - - - - - - - 8 3.4.2 - Other studies dedicated to the creep capacity of young

get price

Experimental Investigation on Mechanical Behavior of ...

Jun 25, 2021  Based on axial pull-out performance tests of anchor and shotcrete support system with three types of plates and two kinds of shotcretes (plain and steel fiber reinforced concrete) conducted by use of the multi-functional testing system. The mechanical behavior of the anchor and shotcrete support system with the different plate and shotcrete such as the pull-out performance of support system ...

get price

Masanari NAKASHIMA Nippon Steel Sumitomo Metal, Tokyo

The cyclic behaviour of the clay was simulated using the subloading tij constitutive model. ... Mechanical behaviour of a sprayed concrete lining isolated by a sprayed waterproofing membrane ...

get price

Anna-Lena HAMMER Research Assistant Dipl.-Ing. Ruhr ...

Mechanical behaviour of a sprayed concrete lining isolated by a sprayed waterproofing membrane. Article. ... the mechanical behaviour of an SCL with a sprayed waterproofing membrane was ...

get price

(PDF) On composite action and tunnel lining design; is ...

The presence of a spray-applied waterproofing membrane between the primary and secondary lining layers is important to the behaviour of a composite sprayed concrete lined (SCL) tunnel in soft ground.

get price

[PDF] Performance of EVA-Based Membranes for SCL in Hard ...

The bonded property of multi-layered sprayed concrete tunnel linings (SCL) waterproofed with sprayed membranes means that the constituent materials will be exposed to the groundwater without any draining or mechanically separating measures. Moisture properties of the sprayed concrete and membrane materials are therefore important in order to establish the system properties of such linings.

get price

Static response of double shell concrete lining with a ...

Sep 01, 2017  Nakashima et al. (2015) found that a spray-applied waterproofing membrane applied between two shotcrete layers caused a beam to behave like a compound beam, concluding that evidence of load sharing between both layers of sprayed concrete could open the path to future optimization of lining thickness.

get price

Publications – Soga Research Group

The complete and updated list of our publications can be found on Google Scholar or Researchgate.. Books: Mitchell, J.K. and K. Soga, Fundamentals of Soil Behaviour

get price

Numerical Analysis of the Contact Behavior of a Polymer ...

Waterproof membranes have higher initial strength, faster construction, and better waterproofing than conventional sheet membranes. In addition, their polymer constituents have much higher interfacial adhesion and tensile strength than those of conventional materials. However, despite their advantages, waterproof membranes are not widely used in civil construction.

get price

Influence of Symmetric and Asymmetric Voids on Mechanical ...

Influence of Symmetric and Asymmetric Voids on Mechanical Behaviors of Tunnel Linings: Model Tests and Numerical Simulations

get price

Mechanical behaviour of a sprayed concrete lining isolated ...

Mechanical behaviour of a sprayed concrete lining isolated by a sprayed waterproofing membrane By Masanari Nakashimaa, Anna-Lena Hammer, Markus Thewes, Mohammed Elshafie and

get price

Numerical Analysis of TBM Tunnel Lining Behavior using ...

Numerical Analysis of TBM Tunnel Lining Behavior using Shotcrete Constitutive Model Heyam H. Shaalan a, ... One of the most important support elements of tunnel constructions is sprayed concrete, often known ... is a non-linear model represents the mechanical behaviour of shotcrete based on multi-surface plasticity theory with a

get price

Wrap Numerical Calibration Mechanical Behaviour

composite mechanical behaviour for CSL tunnels. Verani and Aldrian (2010) reported three-point bending tests on a pure sprayed concrete and a composite beam with spray-applied waterproofing membrane sandwiched half-depth under ambient laboratory climate conditions (e.g. 15-20° in temperature and 40-60% relative humidity), showing the

get price

Interface characteristics in composite sprayed concrete ...

Research project: Interface characteristics in composite sprayed concrete lined tunnels Currently Active: Yes. Over the last twenty years, sprayed concrete lined (SCL) tunnels have seen rapid development in their use, particularly for forming large underground spaces such as station concourses for urban metro lines.

get price

Sprayed tunnel linings: a comparison between several ...

Jul 29, 2009  In tunnel construction the use of sprayed concrete coupled with steel mesh or added with steel fibres for temporary and permanent linings is a well known and used solution. The paper investigates the use of A/R glass fabric reinforcement for temporary linings in order to estimate its competitiveness in terms of mechanical performance, costs and placing time.

get price

3D numerical analysis of sprayed concrete lined tunnels ...

Aug 31, 2016  The results of multiple 3D Finite Element (FE) analysis undertaken to assess in-tunnel deformations and lining stresses of the primary sprayed concrete linings (SCL) are presented and discussed below. Effect of various excavation sequences. The main factor investigated in this study was the excavation and support simulation.

get price

Performance of EVA-Based Membranes for SCL in Hard Rock ...

Sep 24, 2015  Nakashima M, Hammer AL, Thewes M, Elshafie M, Soga K (2015) Mechanical behaviour of a sprayed concrete lining isolated by a sprayed waterproofing membrane. Tunn Undergr Space Technol 47:143–152. Article Google Scholar NCA Norwegian Concrete Association (2011) Publication No 7. Sprayed concrete for rock support.

get price

Design and construction of a spray concrete lined shaft ...

Nov 23, 2015  The first sprayed concrete lined structure forming part of London Underground Limited’s (LUL) upgrade to Victoria Station was successfully completed in October 2012. The circular shaft is 8.5m diameter reducing to a 7.3m x 7.9m ellipse as it squeezes between the Victoria Line running tunnels.

get price

Nonlinear Mechanical Analysis of Polymer Precast Panel for ...

The nonlinear mechanical behaviour of the specimen is analysed based on the bending stiffness. Considering the hyper-elastic behaviour of HDPE, the overall response of the sample had shown a good acceptable strength 14.3% higher than the desired strength which can approve the right material selection. ... History of the sprayed concrete lining ...

get price

Cast in-situ Cross Passages: Thermal Stress Assessment ...

Aug 31, 2016  The C310 Thames Tunnel comprises twin 2.72km long bored tunnels between North Woolwich and Plumstead Portal. Four cast in-situ cross passages link the tunnel drives and the junction between the running tunnels and cross passage linings are made by RC collars cast in-situ on the primary sprayed concrete lining (SCL).

get price

Harmonising Rock Engineering and the Environment - 1st ...

Mar 16, 2012  Harmonising Rock Mechanics and the Environment comprises the proceedings (invited and contributed papers) of the 12th ISRM International Congress on Rock Mechanics (Beijing, China, 18-21 October 2011). The contributions cover the entire scope of rock mechanics and rock engineering, with an emphasis on the critical role of both disciplines in sustainable development and environmental ...

get price

Michael J Brown University of Dundee - Academia

The effect of tunnel lining modelling approaches on the seismic response of sprayed concrete tunnels in coarse-grained soils more by Michael J Brown Major seismic events have shown that tunnels in cohesionless soils may suffer extensive seismic damage.

get price

Evaluation of the safety factors of shotcrete linings ...

May 12, 2020  The 64 cases of the parametric analysis covered the vast range of variability of influential parameters and yielded useful information concerning the effects of secondary deformations over time on the static behaviour of the lining and on the safety factor with reference to the possible failure of the sprayed concrete.

get price

CONCRETE SikaFiber® TECHNOLOGY

concrete. For instance, if the sprayed concrete lining of an excavated tunnel support is cracked due to high flexural stresses, the fibres can accommodate the tensile forces and act as an excellent yielding support. This interaction between sprayed concrete and fibres, therefore, also increases the mechanical capacity of the lining.

get price