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Testing & Assessments feed

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A case study of groundwater pollution
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A case study of groundwater pollution
The site is an industrial area located in Central Italy with problem of contact between shallow aquifer (very close to ground surface) and sewer lines of the plant. Before starting with remediation activity, a technical and cost evaluation plan was develo
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Buckling Experiments on egg-shaped PE
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Buckling Experiments on egg-shaped PE
Ten small-scale experiments without imperfection, with annular gap and with local imperfec-tion lead to buckling pressures close to the computational values. The full-scale field test is performed with a grouted PE liner and a remaining annular gap of 0.7
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CASE STUDY OF ECONOMIC IMPACT CONNECTED WITH THE ELIMINATION OF
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CASE STUDY OF ECONOMIC IMPACT CONNECTED WITH THE ELIMINATION OF
The research by Kielce University of Technology into quantitative and qualitative analyses of ground water infiltration into sewers was presented. The location and impact of infiltration on pipe integrity were monitored. Moreover, some cases of groundwate
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City of Denver and City of Aurora, Colorado USA Trenchless exper
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City of Denver and City of Aurora, Colorado USA Trenchless exper
This paper will outline Sanitary Sewer rehabilitation products, from cured in place, Fold and Form PVC, Deformed and Formed Polyethylene, and Spiral Wound product PVC. The paper will include brief cost savings of the Trenchless Rehabilitation of Sanitary
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COMPARATIVE PRODUCT TEST "TUBE LINERS FOR LATERAL PIPES"
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COMPARATIVE PRODUCT TEST "TUBE LINERS FOR LATERAL PIPES"
With a focus on trenchless pipeline rehabilitation, IKT - Institute for Underground Infrastructure has developed a tool to compare the quality of techniques and products available on the market: The IKT-Comparative Product Test (IKT CPT). Based on the req
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Construction of Rainwater Reservoir Facilities by the Unmanned P
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Construction of Rainwater Reservoir Facilities by the Unmanned P
The purpose of this research is to establish the design and work performance for unmanned pneumatic caisson, which is economical for constructing vertical and deep underground water reservoir facilities. It is also intended to study a total effective mana
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Danish Quality Control Schemes
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Danish Quality Control Schemes
As far as we know, the Danish Quality Control Scheme for Pipeline Rehabilitation is the first of its kind in the world and now a Quality Control Scheme for Directional Drilling and Pipe Jacking has been created as well. The Danish Quality Control Schemes
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Design of Oval Shaped Sewer Linings
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Design of Oval Shaped Sewer Linings
This article describes a design method for oval shaped sewer linings subject to external groundwater pressure. The beneficial interaction between the lining and the host structure is take into account. The method is based on an approximate analytical solu
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Easypipe
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Easypipe
In piping in general, but especially in pipeline construction, projects including crossings in buried construction always take up an exceptional position. Be it water crossings, railway underpasses or other obstacles, the amount of time used on planning t
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EFFECT OF WALL CORROSION AND BACKFILL EROSION ON THE STRENGTH OF
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EFFECT OF WALL CORROSION AND BACKFILL EROSION ON THE STRENGTH OF
While inspection technologies and assessment methods are being developed for corrugated metal culverts and sewers by researchers and specialized contractors, there is a dearth of information on how the level of corrosion influences culvert stability, and
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Effects of Mixing Energy on Placing Properties of Injection Grou
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Effects of Mixing Energy on Placing Properties of Injection Grou
trenchless techniques have been developed to rehabilitate ageing underground pipes and drains. Some rehabilitation methods flowable cement-based grouts to fill and reinforce the gap between new and old pipe. For this process to be effective, grouts need t
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Energy losses in Waste Pipelines
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Energy losses in Waste Pipelines
The purpose of the paper is to describe modeling procedures used to determine the model losses created in pipe flow by certain obstructions common to waste discharge. The model data are then scaled up for use in waste pipe line design. The losses which ha
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Fabric Reinforced Hose for Gas Pipelines
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Fabric Reinforced Hose for Gas Pipelines
This paper discusses the testing of selected high-strength fabric hose liners by 22 associations from the gas industry, rehabilitation companies and test institutes for their potential use in the rehabilitation of gas pipelines operating up to 30 bars.
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Flow Reduction and Buckling Pressure
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Flow Reduction and Buckling Pressure
The growing use of flexible liners for rehabilitating water mains makes the design of these liners important from mechanical and hydraulic perspectives. The objective of this study was to examine the effect of the thickness of a flexible liner on its buck
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Gunners Run Relief Sewer
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Gunners Run Relief Sewer
Built in 1878, the Gunners Run Relief Sewer is a 15-ft diameter combined brick sewer located in the Kensington section of Philadelphia, Pennsylvania, that carries the flow from the local sewers to an intercepting chamber along the Delaware River. During h
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Hydraulic Issues Affecting Application & Selection
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Hydraulic Issues Affecting Application & Selection
A variety of trenchless technologies, including sublining, pipe rolldown and pipebursting, can be applied to reduce energy losses or leakage in old pipes and, in some cases, to even increase the capacity of severely deteriorated watermains. This paper des
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Implementation & use of live insertion experiences
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Implementation & use of live insertion experiences
The high costs and inconvenience imposed on the public associated with the excavation and restoration of pavement for gas pipeline replacement and rehabilitation projects has lead Pacific Gas and Electric Company to expand its use of trenchless constructi
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Innovative technologies for PVC
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Innovative technologies for PVC
In the City of Phoenix, Arizona high ambient wastewater temperatures and long transit times aggravate corrosion in unprotected concrete pipe. Phoenix began utilizing polyvinyl chloride (PVC) lined concrete pipe in the mid 1960s as a deterrent to corrosio
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Lining Stability Analysis
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Lining Stability Analysis
This paper presents new theoretical models and equations-based experiments for a reasonable limitation of host pipe soil-systems. Actual applications of the design method on different sewers in German cities are summarized.
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Conference Papers (1368)    Asset Management and Work Planning (425)    Site Survey and Preparation (84)    Spray-on Linings and Coatings (28)    Spiral Wound Linings (10)    Close-Fit Liners (29)    Manhole Rehabilitation (3)    Local Repairs and Grouting (54)    Costs and Environmental Issues (37)    Associated Technologies, Techniques and Equipment (42)    Testing & Assessments (48)    Pipe Ramming and Impact Mole (12)    Microtunneling and Pipe Jacking (213)    Cured in Place Pipeliners (98)    Horizontal Directional Drilling (199)    Auger Boring and Pilot Tube Microtunneling (8)    Pipe Bursting and Splitting (48)    Slip Linings (Loose Fit) (30)

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