Redevelopment Work Research Articles

Zhodnotenie dlhodobého monitorovania svahových deformácií a efektívnosti sanačných opatrení na zosuvnom území Nižná Myšľa

In 2010, extensive slope deformations were activated in Nižná Myšľa Village, which affected a large part of the village. Due to the extent of the affected area, the severity of the manifestations and especially the catastrophic consequences they caused in the built-up area of the village, the slope failures in Nižná Myšľa were evaluated as the second most destructive landslide event in the documented history of Slovakia. Almost immediately after the devasting event, a detailed engineering geological survey followed, which provided information on the extension, nature of slope deformations and became the basis for the design of the monitoring system. Monitoring activities have been ongoing since 2011 and continue to the present. By gradual upgrade of the monitoring objects network for monitoring subsurface deformations and for groundwater regime observations, a large data set was obtained over a longer period of time. Thanks to this, the Nižná Myšľa landslide area is one of the Slovak sites where the largest network of monitoring objects is built. At the same time by monitoring, the main activity took place – remediation of the geological environment in three successive stages. The aim of this work is to provide a comprehensive overview of the implemented remediation measures, an overview of dataset obtained from monitoring of slope deformations and selected environmental components, but mainly on the basis of these data, comprehensive evaluation of monitoring data obtained by monitoring and evaluation of the development of measured parameters with technical remediation measures. From the regularly repeated analysis of the parameters as well as from the evaluations results, the most significant results for the whole period of the site monitoring are the results of inclinometric measurements of total deformations and their increments for individual phases of measurement. The area is characterized by ongoing large-scale landslide activity, especially in the southern part of the village, which was also the most affected in 2010 and represents part of the central part of Nižná Myšľa, along with the northern part on the landslide from Staničná ulica Street, including the Elementary school area up to Hlavná ulica Street. In particular, remediation works during the first, second and third stages of the landslide remediation were directed to these areas. Despite a relatively large scope of remedy works and the evaluation of their effectiveness, the vast territory affected by slope failures was only partially rehabilitated depending on the approved funds. Therefore, even the remedial measures implemented so far are only partial, mainly in connection with the persistent movement activity in individual parts of the territory and should be completed according to the proposals from the geological works carried out and taking into account the results of monitoring. The basic objective should be a gradual implementation of remediation work so as to ensure the stability of the territory to the greatest possible extent, as ensuring the complete stability of the territory is technically and financially unrealistic due to its extent, complexity and slope deformation character. In the long term, redevelopment work needs to increase the territory’s ability to withstand similar adverse climatic events as occurred in June 2010.

The new CERN tape software - getting ready for total performance

CASTOR (the CERN Advanced STORage system) is used to store the custodial copy of all of the physics data collected from the CERN experiments, both past and present. CASTOR is a hierarchical storage management system that has a disk-based front-end and a tape-based back-end. The software responsible for controlling the tape back-end has been redesigned and redeveloped over the last year and was put in production at the beginning of 2015. This paper summarises the motives behind the redesign, describes in detail the redevelopment work and concludes with the short and long-term benefits.

The effect of urban redevelopment on retail shopping property values: a case study in Hong Kong

Purpose – Redevelopment, an essential aspect of the urban regeneration process, brings positive externalities to neighbourhoods. This study evaluates the effect of the improvements of neighbourhoods, brought about by redevelopment, on nearby ground-floor retail shopping property values. This study uses a hedonic price model to determine whether there is a relationship between redevelopment work and nearby shopping property values and the influence of neighbourhood improvements on the price of shopping properties if there is such relationship. The analysis is based on three large-scale redevelopment projects, each having a commercial space ranging from 30,000 to 50,000 sq.ft. The results show that an improved neighbourhood environment brings significant value enhancement to nearby shopping properties. Potential tenants are willing to pay a sale rental price premium ranging from 13% to 34% on shops located near redeveloped areas. The results also reveal that potential shop tenants are willing to pay a premium of 0.1% more on a shop with a cockloft. These findings imply that a neighbourhood environment that has been improved through well-planned redevelopment projects adds value to nearby properties. This study contributes an indication of the amount a tenant or buyer would be willing to pay on shops near redeveloped areas and can be used as a reference for users, developers and investors.

Environmental Stewardship: Global Applications of a Nonradioactive Method To Identify Proppant Placement and Propped-Fracture Height

Summary Accurate assessment of intervals receiving proppant and the determination of near-wellbore fracture heights are valuable in assessing and optimizing stimulation strategies. Proppant-placement evaluation in hydraulic fractures has traditionally involved the detection of radioactive (R/A) tracers pumped downhole with the proppant. However, as environmental regulations regarding this technique have tightened, and with increased scrutiny by the public and regulatory bodies of the industry in general and hydraulic fracturing in particular, the need for an alternative to R/A tracers has become paramount. A new technology for assessing intervals receiving proppant and determining fracture heights by use of a non-R/A detectable proppant has been introduced recently. The technology has found global acceptance and has proved to be a robust and accurate method of locating proppant in the near-wellbore region. In addition to eliminating the safety and environmental concerns with R/A tracers, this new method also provides a permanent indication of the proppant location near the wellbore. Unlike traditional R/A tracers that must be logged before the radioisotopes completely decay, this new method will allow investigation of the proppant pack many years or decades in the future, which will provide critical information during remedial or redevelopment work that cannot be determined with conventional approaches. A review of the current state of regulatory impediments to the use of R/A tracers in key producing regions around the world is presented, highlighting the need for an alternative diagnostic technology. The technology used in the application of the non-R/A detectable proppant is described, and comparisons with other fracture-diagnostic technologies are presented. Several case histories are shown that illustrate various applications of the technology in regions around the globe. These case histories include applications performed in Asia, the Middle East, Europe, and North America. In addition to identifying proppant location and fracture height, this technology can be used in other applications such as the evaluation of gravel-pack quality. If the current trends in regulatory actions related to hydraulic fracturing continue, it is anticipated that the use of R/A tracers will be restricted to fewer and fewer locales. At the same time, reliable fracture diagnostics for optimization of hydraulic fracturing, from both a wellperformance and a cost-control standpoint, remains extremely important.

La place des clandestins dans la ville. Pratiques foncières et Comoriens à Mamoudzou (Mayotte)

Yann Gérard The place of illegal immigrants in the city. Land use practices and immigrants from the Comoros in Mamoudzou (Mayotte). In this study, land use practices, whether they be private or in response to public spatial planning operations, are analysed to reveal the place of illegal immigrants in the city'. Their omnipresence within the town of Mamoudzou highlights the fact that their illegal status is linked to immigration regulations, even if this entails a certain social marginalisation, amply illustrated by the insecurity of their work and housing situation. When the authorities in charge of spatial planning policy carry out a "régularisation" operation in a neighbourhood, evicting illegal immigrants prior to redevelopment work, this in reality enables a minority of Mayotte natives to be granted land to build on, an increasing rarity in the agglomeration. Lastly, between the authorities and the natives of Mayotte, the illegal immigrants' role seems to be that of a balancing variable.

Assessment of the Health Impacts of Particulates from the Redevelopment of Kings Cross

The Kings Cross/St. Pancras area has been a rail transport hub from Central London to the Midlands and North Eastern England since the middle of the nineteenth century and dust from the Kings Cross railway lands was even described by Charles Dickens. The Channel Tunnel high speed Rail Link (CTRL) is being constructed between 2001 and 2007 to connect continental Europe to Central London. The CTRL and associated development will help regenerate an area that is surrounded by deprived high density housing estates. London Borough of Camden has set up an extensive particulate monitoring programme to determine if there are any health impacts on local residents from emissions from the demolition and construction work. This article assesses the results from particulate measurements in 2003-2004 and compares this to baseline conditions before the redevelopment work began. The evidence suggests that although 2003 had higher than average pollution levels in the UK as a whole, even higher levels of particulates in the size range PM(10)-PM(2.5) (defined as PM(coarse)) were measured in Kings Cross. Due to the size of these particulates, they tend to be released from construction works rather than transport or secondary particulate sources. Concentrations in 2004 were lower than 2003, but this was primarily due to meteorological conditions. The paper also looks at the health of the local population and discusses whether these elevated levels are creating a problem and legally constitute a statutory nuisance. The Council continues to work with the contractors to try and ensure best practical means to minimise dust emissions and their effect on local residents.

IMPROVING RECOVERY IN A THIN OIL COLUMN RESERVOIR—TUNA M–1 RESERVOIR EXPERIENCE IN THE GIPPSLAND BASIN, SOUTHEAST AUSTRALIA

The Tuna M–1 reservoir was developed in 1997 from both the new West Tuna platform and the existing Tuna A platform in the Gippsland Basin. The M–1 reservoir is contained within an anticlinal closure with an approximate gross hydrocarbon column of 85 metres. The oil column was originally 12 m thick and is supported by a large gas cap and a strong flank aquifer.Performance from the M–1 reservoir has been good, due to excellent reservoir properties. The combination of conventional and geo-steered horizontal wells has performed well with recovery efficiencies of 70% observed in many parts of the field. Lower than expected performance from the northwestern edge of the oil rim was, however, a significant anomaly, with recovery efficiencies 10% lower than from comparable rock in the southern and eastern parts of the field. The underlying cause of this lower performance was believed to be the result of an anisotropic aquifer response allowing greater pressure support along the northwestern flank of the fieldA re-entry well was drilled from a watered out horizontal well on the Tuna A platform in December 2000. This well was drilled as an oil production opportunity and as a key surveillance data point for the northwestern flank of the field. Results led to further surveillance including contact monitoring and production logging in horizontal wells. In addition to this, simulations were updated to reflect actual performance and surveillance data. Subsequent analysis supported development of a work program for new M–1 drainage points, including additional drill wells and the conversion of existing, watered out horizontal wells to conventional wells. The M–1 redevelopment work has been highly successful with production rates increasing by about 20,000 barrels per day in the first nine months of the program.

Maintenance of Wells Includes Redevelopment

The length of a well's life is determined by how often and how effectively it is redeveloped and maintained. This article discusses the process of well development and how the efficiency of a well is improved. Topics covered include: determining water level, charting performance, well development, and monitoring the progress of redevelopment work.

Microteaching, Component Skills and the Training of Teachers: an Evaluation of a Research and Development Project

SummaryThis paper reviews the work and underlying assumptions of a project concerned with the transfer and redevelopment of a self‐instructional microteaching course originally developed in the United States. The transferred materials were shown to be effective with experienced British teachers, supporting the feasibility of such transfers of teacher training systems. The research and development cycle which was to structure the work, however, was only partially implemented, leaving important questions about the need for such redevelopment work unanswered. Another area needing more careful attention is the model used to organize the instructional technology; though effective in altering teaching behaviour, there is evidence that it may not be the most efficient way to achieve the desired goals. Finally, the ‘component skills’ approach to teaching is criticized as a misconceptualization of the behaviour being studied. Some evidence is presented that this in turn may be distorting subsequent patterns of teaching.