Retrofitting pipelines with cured-in-place linings for earthquake-induced ground deformations

Argyrou, Christina; Bouziou, Dimitra; O’Rourke, Thomas D.; Stewart, Harry E.

doi:10.1016/j.soildyn.2018.07.015

Cited by 19 publications

(4 citation statements)

References 26 publications

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“…The neutral axis of the composite structure is shown in Figure 4. The distance from the neutral axis of the composite structure to the inside surface of the liner can be expressed as: (18) where t c and t l are the thickness of host pipe and liner pipe, respectively. E c and E l are the elastic modulus of the host pipe and liner pipe, respectively.…”

Section: Formula Derivationmentioning

confidence: 99%

“…To present the structural behavior and performance of the polyurea-urethane (PUU) liner for rehabilitating water pipes, a series of tests were carried out by Ha et al, 17 bond strength, hole and gap spanning capabilities, and angular displacement ability. To study the earthquake performance of the pipes with weak joints and circumferential cracks, which were repaired by pipe liners, Argyrou et al 18,19 carried out a full-scale test. And the results of finite-element were compared with the test.…”

Section: Introductionmentioning

confidence: 99%

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Mechanical response of concrete pipe rehabilitated by liner under external load: Analytical solution

Zhai,

Fang,

Wang

et al. 2023

Num Anal Meth Geomechanics

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Using pipe lines to rehabilitate concrete drainage pipes is a popular trenchless technique. In this paper, the concrete pipe and liner are equivalent to a symmetrical structural mechanics problem, and the mechanical solution of the composite structure is obtained using the force method. Subsequently, the analytical solutions are compared with the test and finite element results. The distribution law of axial force, bending moment, and shear force of the composite structure are obtained, and the circumferential strain law of the inner and outer surfaces of the host pipe is analyzed. Lastly, the influence of pipe diameter and liner thickness on the bearing capacity of the host pipe is examined. The results indicate that the axial and shear force distribution of the composite structure remains the same for different pipe diameters, as the distribution diagrams of shear and axial force along the circumferential direction coincide. While the elastic modulus and thickness of the liner have no effect on the internal force distribution of the composite structure, they do directly affect the stress state of the host pipe. Additionally, the bottom support causes abrupt changes in the bending moments and strains of the host pipe.

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Section: Formula Derivationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Mechanical response of concrete pipe rehabilitated by liner under external load: Analytical solution

Zhai,

Fang,

Wang

et al. 2023

Num Anal Meth Geomechanics

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show abstract

“…Trenchless renewal methods avoid disrupting large sections of neighborhoods and cities and prevent lengthy construction times. In doing so traffic accumulation and social costs are kept to a minimum (Argyrou et al, 2018). This is because only a small portion of the pipe is needing to be accessed in order to repair/renew unlike open cut pipe renewal methods.…”

Section: Introductionmentioning

confidence: 99%

A Comparative Review of Trenchless Cured-in-Place Pipe (CIPP) With Spray Applied Pipe Lining (SAPL) Renewal Methods for Pipelines

Hicks

Kaushal²,

Jamali³

2022

Front. Water

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Pipes have been used for thousands of years, the first record of copper piping dates to the Egyptians in 3000 BC. In today's time, pipelines play a dramatic role in our everyday life and is a backbone of our society. Replacing and renewing our vast piping system is extremely important to maintain and grow the infrastructure around us. Trenchless methods (TM) can renew pre-existing piping, replace, and offer installation of new pipe(s). Two very common TMs are cured-in-place piping (CIPP) and spray-applied pipe lining (SAPL). These are great alternatives compared to open cut pipeline installation (OCPI) due to minimizing environmental impact and the total cost associated with renewing or replacing a pipe. Owners and engineers involved in a project which contain pipe renewal and or replacement should consider the time and social cost associated with each method. Cost alone should not be the one and only deciding factor. The objective of this review is to compare and contrast CIPP and SAPL pipeline renewal methods with references found over these renewal methods. This will be demonstrated with the use of a table that will consist of these parameters; environmental, mechanical properties, performance, cost, and methods. The method used for selecting specific articles/papers is intended to locate major factors that play a role in pipeline renewal using publications from the past years. Results show that reviewing, comparing, and understanding current research relating to pipeline renewal will allow for safer applications, increased efficiency, and pipeline longevity.

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“…Ji et al [18] investigated the flexural modulus, strength, and deflection of a CIPP composite using a three-point bending apparatus. Argyrou et al [19,20] investigated the effect of abrupt ground movement caused by earthquake on CIPP by conducting a large-scale fault rupture test. ey created a model based on the test results to analyze the axial elongation and bending of the pipeline, in which circumferential cracks and weak joints had been repaired by CIPP, under instantaneous ground deformation.…”

Section: Introductionmentioning

confidence: 99%

Parameter Analysis of Wall Thickness of Cured-in-Place Pipe Linings for Semistructured Rehabilitation of Concrete Drainage Pipe

Fang

Yang

et al. 2020

Mathematical Problems in Engineering

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Frequent accidents caused by underground pipeline damage are a widespread societal concern. Trenchless rehabilitation methods, particularly cured-in-place pipe (CIPP) lining, are increasingly used for pipeline repair with great success. Existing research is mainly concerned with practical improvements in rehabilitation and evaluating the performance of rehabilitation. In this study, the model of corroded buried concrete pipeline that had been rehabilitated with CIPP was established using numerical methods, and the Mesh-based parallel-Code Coupling Interface (MpCCI) was used to investigate multifield coupling effects of soil pressure, traffic load, and fluid-structure interactions. Moreover, the influences of corrosion depth, corrosion width, traffic load, cover depth, and water quantity on CIPP wall thickness were compared and analyzed. The result shows that maximum principal stress and vertical displacement of pipeline markedly decreased after CIPP rehabilitation, and thus the new CIPP can carry loads in a deteriorated pipe. Stress and displacement of the composite pipe liner were positively correlated with corrosion depth and negatively correlated with corrosion width. Increase in traffic load rapidly increases von Mises stress of CIPP, and increase in cover depth rapidly increases maximum principal stress of pipeline. Water flow has little effect on the pipe liner, and flow capacity increases slightly after CIPP rehabilitation. CIPP wall thickness was positively correlated with corrosion depth, traffic load, cover depth, and water quantity and negatively correlated with corrosion width.

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Retrofitting pipelines with cured-in-place linings for earthquake-induced ground deformations

Cited by 19 publications

References 26 publications

Mechanical response of concrete pipe rehabilitated by liner under external load: Analytical solution

Mechanical response of concrete pipe rehabilitated by liner under external load: Analytical solution

A Comparative Review of Trenchless Cured-in-Place Pipe (CIPP) With Spray Applied Pipe Lining (SAPL) Renewal Methods for Pipelines

Parameter Analysis of Wall Thickness of Cured-in-Place Pipe Linings for Semistructured Rehabilitation of Concrete Drainage Pipe

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