scholarly journals Sustainability Analysis of Improvement of Contaminated Clayey Soil Using Lime Piles Technique

2021 ◽  
Author(s):  
Mahdi O. Karkush ◽  
Mahmoud S. Abdul Kareem ◽  
Sivakumar Babu
Keyword(s):  
Sustainability Assessment ◽  
Clayey Soil ◽  
Multicriteria Analysis ◽  
Deep Foundations ◽  
Deep Foundation ◽  
Assessment Approach ◽  
Sustainability Concept ◽  
Geotechnical Design ◽  
Allowable Load ◽  
Sustainability Framework

Abstract This study aims to use the concept of sustainability and provide guidance to geotechnical engineers to contribute towards greater sustainability in geotechnical design and construction. The methodology of the sustainability framework aims to support indicators and tools used in the sustainability concept in geotechnical engineering. In addition, available indicators will be used to analyze the role of natural resources, social impacts, environmental and economic aspects. In order to demonstrate the sustainability assessment approach, a case study is evaluated using the methodology of sustainability framework by using Multi-Criteria Analysis (MCA). The assessment is studied for raft footing and deep foundations (driven and bored piles A foundation treatment of 15×15 m and 0.45 m thickness to carry a high static load or to carry cyclic loading is analyzed. The results indicate the calculations of sustainability indices from the multicriteria analysis show that the option of raft footing than deep foundation if raft provides adequate allowable load by improving the soil using lime piles technique is sustainable.

scholarly journals Early-Age Thermal-Shrinkage Cracking in Deep Foundations

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Łukasz Grabowski ◽  
Monika Mitew-Czajewska
Keyword(s):  
Thermal Shrinkage ◽  
Future Research ◽  
Early Age ◽  
Deep Foundations ◽  
Shrinkage Cracking ◽  
The United Kingdom ◽  
Normative Requirements ◽  
Geotechnical Design ◽  
European Standards ◽  
Materials Used

Abstract With the growing rate of urbanisation, deep foundations are playing an ever-larger role in the development of cities, reaching deeper than before to fulfil the requirements of new constructions. While current European standards include design procedures for structural and geotechnical design, they lack provisions for massive deep foundations with regard to early-age thermal effects. This paper presents aspects of the phenomenon especially important for deep foundations and discusses normative requirements that influence their thermal behaviour. Further, the paper describes the methods and results of the research carried out in the United Kingdom on 1.50-m-thick diaphragm walls of a deep circular shaft. Shaft features are described, as well as the materials used. The measurements were carried out using vibrating wire strain gauges coupled with temperature readings. The results presented refer to one of the test panels concreted in January 2020. The temperature results are analysed together with the influence of work scheduling on the readings. Strain results that indicate contractive behaviour of the test panel are investigated together with the possible causes leading to such readings. Plans and directions for future research are discussed.

scholarly journals Sustainable and Smart Manufacturing: An Integrated Approach

2020 ◽  
Vol 12 (6) ◽  
pp. 2280 ◽  
Author(s):  
Mohamed Abubakr ◽  
Adel T. Abbas ◽  
Italo Tomaz ◽  
Mahmoud S. Soliman ◽  
Monis Luqman ◽  
...  
Keyword(s):  
Manufacturing Industry ◽  
Sustainability Assessment ◽  
Negative Impact ◽  
Manufacturing Sector ◽  
Sustainable Manufacturing ◽  
Smart Manufacturing ◽  
Future Research ◽  
Bottom Line ◽  
Manufacturing Performance ◽  
Sustainability Concept

The necessity for decreasing the negative impact of the manufacturing industry has recently increased. This is getting recognized as a global challenge due to the rapid increase in life quality standards, demand, and the decrease in available resources. Thus, manufacturing, as a core of the product provision system and a fundamental pillar of civilized existence, is significantly influenced by sustainability issues. Furthermore, current manufacturing modeling and assessment criteria require intensive revisions and upgrades to keep up with these new challenges. Nearly all current manufacturing models are based on the old paradigm, which was proven to be inadequate. Therefore, manufacturing technology, along with culture and economy, are held responsible for providing new tools and opportunities for building novel resolutions towards a sustainable manufacturing concept. One of such tools is sustainability assessment measures. Revising and updating such tools is a core responsibility of the manufacturing sector to efficiently evaluate and enhance sustainable manufacturing performance. These measures should be adequate to respond to the growing sustainability concerns in pursuit of an integrated sustainability concept. The triple bottom line (TBL) that includes environment, economic, and social dimensions has usually been used to evaluate sustainability. However, there is a lack of standard sets of sustainable manufacturing performance measures. In addition to the sustainability concept, a new concept of smart manufacturing is emerging. The smart manufacturing concept takes advantage of the recent technological leap in Artificial Intelligent (AI), Cloud Computing (CC), and the Internet of Things (IoT). Although this concept offers an important step to boost the current production capabilities to meet the growing need, it is still not clear whether the two concepts of smart manufacturing and sustainability will constructively or destructively interact. Therefore, the current study aims to integrate the sustainable smart manufacturing performance by incorporating sustainable manufacturing measures and discussing current and future challenges that are faced by the manufacturing sector. In addition, the opportunities for future research incorporating sustainable smart manufacturing are also presented.

Participatory decision support for sustainable forest management: a framework for planning with local communities at the landscape level in Canada

2005 ◽  
Vol 35 (7) ◽  
pp. 1515-1526 ◽  
Author(s):  
Stephen RJ Sheppard
Keyword(s):  
Decision Making ◽  
Decision Support ◽  
Forest Management ◽  
Public Participation ◽  
Public Involvement ◽  
Sustainable Forest Management ◽  
Sustainability Assessment ◽  
Multicriteria Analysis ◽  
Management Scenarios ◽  
Landscape Level

There is an increasing demand for active public involvement in forestry decision making, but there are as yet few established models for achieving this in the new sustainable forest management (SFM) context. At the level of the working forest, the fields of forest sustainability assessment, public participation, decision support, and computer technology in spatial modelling and visualization need to be integrated. This paper presents the results of a literature review of public participation and decision-support methods, with emphasis on case study examples in participatory decision support. These suggest that emerging methods, such as public multicriteria analysis of alternative forest management scenarios and allied tools, may lend themselves to public processes addressing sustainability criteria and indicators. The paper develops a conceptual framework for participatory decision support to address the special needs of SFM in tactical planning at the landscape level. This framework consists of principles, process criteria, and preliminary guidelines for designing and evaluating SFM planning processes with community input. More well-documented studies are needed to develop comprehensive, engaging, open, and accountable processes that support informed decision making in forest management, and to strengthen guidance for managers.

How sustainable is electric mobility? A comprehensive sustainability assessment approach for the case of Qatar

2019 ◽  
Vol 250 ◽  
pp. 461-477 ◽  
Author(s):  
Nuri Cihat Onat ◽  
Murat Kucukvar ◽  
Nour N.M. Aboushaqrah ◽  
Rateb Jabbar
Keyword(s):  
Sustainability Assessment ◽  
Electric Mobility ◽  
Assessment Approach

Assessment of the current state of sustainability in a manufacturing firm

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Bhavya Pande ◽  
Gajendra Kumar Adil
Keyword(s):  
Value Chain ◽  
Textile Industry ◽  
Sustainability Assessment ◽  
Sustainable Manufacturing ◽  
Manufacturing Firms ◽  
Firm Level ◽  
Manufacturing Firm ◽  
Content Type ◽  
Current State ◽  
Assessment Approach

PurposeSustainable manufacturing is gaining prominence in light of the rising environmental and social concerns worldwide. One major task to enhance manufacturing sustainability is assessment of the current state of sustainability of a manufacturing firm. This paper reviews the existing sustainability assessment approaches applicable for manufacturing firms and observes that most of these approaches are not easy to apply for reasons such as high amount of skill, data and time requirement. Towards bridging this gap, this study proposes a sustainability assessment approach.Design/methodology/approachThe assessment approach proposed in the paper uses a predefined list of potential sustainable manufacturing practices (SMPs) covering the primary and support activity domains of a manufacturing firm's value chain. It proposes a method to assess the extent of implementation of SMPs and identify associated drivers and barriers for each SMP area/category along the value chain of a firm as well as at overall firm level. A case study from textile industry is presented to demonstrate the utility of this approach.FindingsThe sustainability assessment approach adopted in this study uses less time and skills as well as ensures comprehensive coverage of SMPs. It provided valuable information to the management of the case company on how sustainable their practices are and why?Originality/valueThe study highlights the importance of sustainability assessment at SMP area/category level as well as explores practice area/category specific drivers and barriers. It provides a useful approach for a quick assessment of the current state of sustainability in manufacturing firms.

scholarly journals Influence of degree of saturation in the dynamic stress transmission to a deep foundation

2021 ◽  
Vol 337 ◽  
pp. 03008
Author(s):  
Rafael Baltodano-Goulding ◽  
Laura Brenes-Garcia
Keyword(s):  
Seismic Analysis ◽  
Lateral Load ◽  
Degree Of Saturation ◽  
Triaxial Tests ◽  
Deep Foundations ◽  
Lateral Loads ◽  
Deep Foundation ◽  
General Terms ◽  
Pile Design ◽  
Proper Design

The structural design of deep foundations depends on both the applied loads and the soil that will support them. However, during an earthquake this process reverses, and the seismic stresses are transmitted towards the structure through the soil. Proper design of deep foundations must account for the lateral loads imposed on the foundations by the dynamic loading. In order to assess the influence of soil saturation in the transmission of a dynamic load to a foundation, a dynamic lateral load pile design was performed using Reese’s p-y curve method. A series of suction-controlled dynamic triaxial tests were performed to obtain the Modulus of subgrade reaction at different matric suctions and seismic coefficients were back-calculated to perform structural designs. In general terms, it was observed that contemplating a saturated soil in the dynamic lateral load pile design does not represent the critical load case for seismic analysis.

Sign in / Sign up

Export Citation Format

Share Document