Perbandingan Tebal Perkerasan Menggunakan Nilai CBR Laboratorium dan CBR Lapangan (DCP) (JLS Jarit-Puger)

CBR (California Bearing Ratio) data is used to find out the level of subgrade density, so that a safe pavement thickness can be planned. The calculation of the CBR (California Bearing Ratio) can be done by testing CBR laboratory and DCP. CBR results have a high effect on the surface layer, so that the layer becomes thinner. This condition, if converted to the working price, will be more affordable and efficient. Therefore, this study aims to compare the results of laboratory CBR and Field Cbr (Dcp) to the thickness of flexible pavements in the Development of Trans South-South Java Road Project (TRSS) Lot 8 Jarit - Puger. The method used is Bina Marga Pd T-01-2002-B. Secondary data obtained by weigh bridges and service providers, namely PT. Brantas Abipraya (Persero). Field CBR value using DCP tool is 25.19% while Laboratory CBR value is 21.616%. The results of pavement thickness using Field CBR values ​​for UR 10 years are D1 7.5 cm, D2 10cm, for UR 20 years D1 10 cm, D2 11 cm, for UR 30 years D1 11 cm, D2 12 cm, and for UR 40 years obtained D1 13 cm, D2 14 cm. The greater the CBR value, the thinner the pavement thickness.

Reconstructing Silk Road Tourism Through Digitalisation

In today's world, digitalisation, as a process that results from the adoption of digital technologies and application systems built on those technologies, holds an important place in business functions and processes. Digitalisation is considered to be the engine of transformation and has significantly affected the tourism industry. China, one of the leading countries of digitalisation, launched the ‘New Silk Road Project' to revive the Silk Road, which is of great historical importance from an economic, cultural, and political point of view. Since the New Silk Road Project planned for the improvement of land and railway routes connecting China to Europe through Central Asia is of critical importance for countries along the road, it will also contribute to the revival of Silk Road tourism. This type of tourism is instrumental in protecting and preserving cultural heritage values located across the Silk Road and thus can be given a new perspective with opportunities brought by digitalisation. This study sought to discuss the reconstruction of Silk Road Tourism through digitalization.

Evaluation of soil replacement and cement grout injection in soil settlement

This paper discusses the process of original soil stabilization in Trans Sumatra Bakauheni-Terbanggi Besar Toll Road Project Package 2 Sidomulyo-Kotabaru. The soil replacement process was conducted at approximately 24 kilometres along the toll’s main road. The original soil bearing capacity analysis stage was by performing a Dynamic Cone Penetrometer (DCP) and Sondir test to analyze the deep of hard soil. A soil replacement was carried out to replace the original soil with soil that has appropriate specification. the piling up process was conducted in stages, which has Sandstone in such of the layer. The research done about the landfill sample was retaken and collected at 68 points. The stockpile soil samples collection was then followed by the analysis which was conducted in the laboratory to find the soil bearing capacity. There are 4 types of bearing capacity parameters analyzed, namely specific gravity, water content, aggregate analysis (Sieve Analysis), and consistency limit (Atterberg Limit). Referring to it, then there was the classification of soil types according to AASHTO M145 & Casagrande Soil Classification System. A point that has settlement after soil replacement is STA 52+000. So, there need to add soil stabilization, that is cement grout injection. Researchers analyzed the soil settlement by interpretation method. Results showed that soil replacement and cement grout injection could decrease a soil settlement by about 15.07 cm to become 0.93 cm.

Preface of INda

When starting the second issue, We are pleased to share with you the second issue of the "Journal of Interior Design and Academy" (INda) which has started to be published on May 19, 2021 within the scope of Octagon Academy. INda as a magazine which started to be published despite all the negativities caused by the pandemic during the Covid-19 epidemic, continued its academic contributions with the "Online Chats with INda Series" after the first issue. Under the moderation of Assoc. Dr. Osman ARAYICI who is one of the field editors of our magazine, 8 different online chats were broadcast live on an international and national scale with experts in their fields during October and November. INda as a magazine with the aim of making versatile contributions to our country, universities, the field of interior architecture and related disciplines and professionals working in this field through the production and sharing of scientific knowledge, would like to thank you for the interest and support it has received in these studies in its first year. Obviously, there are many feelings to tell about INda, but now in the second issue, 5 articles presented by 9 authors are listed below. BEKAR and DERECİ examine the subject of refunctioning in traditional civil architecture examples in their article titled “Evaluation of The Appropriateness of Space for The New Function in Traditional Housings: The Case of Mehmet Efendi House”. In particular, Mehmet Efendi Mansion evaluates the old space-new function suitability under two headings as "functional spatial suitability" and "environmentally functional suitability". ÇELENK and SÜRDEM's article titled “Continuity of Cultural Memory: From Samsun Tekel Tobacco Factory to Bafra Tobacco Museum” examines the re-functionalization process. The formal and semantic analyzes of the two structures are presented by making comparisons. ERBAY, in the article titled "Balcony as An Architectural Item", makes an inference over the semantic values ​​that “Balcony” covered during the pandemic process that started with the Covid-19 outbreak. ERBAY and ULUSOY examine the “sense” as a term in interior space in their article titled “Senses in The Interiors: An Example of Entrance Spaces at Hospitals”. In the article, the general design principles have been tried to be reached through the given example, and the design tools that can appeal to the senses in the interior are revealed. ATMACA and REYHAN discuss the Cultural Road Project within the scope of adaptive reuse in their article titled “Adaptive Reuse in Restored Historic Buildings: A Field Study in Ünye”. While examining the historical development and architectural features of the selected sample structures, the evaluation of restoration and all perspectives of adaptive reuse that completes this evaluation contributes to the literature. We would like to thank all authors for their contributions to academic production in our field and all our readers for their support. As INda, we welcome all your comments, contributions and suggestions about us. Enjoy our December 2021 issue… Happy New Year…

Causes of road projects' delays: a case of Blantyre, Malawi

PurposeThe study aims to find the causes of road projects implementation delays in Blantyre, one of the four city councils (CCs) in Malawi.Design/methodology/approachThe study followed a qualitative research approach using a Blantyre City Council (BCC) as a case study. This study combined in-depth, face-to-face interviews with councillors, secretariat staff, consultants, and contractors who worked on the city's road projects. Data gathered were analysed using thematic content analysis. Also, some road project documents were examined.FindingsThe findings from the case study revealed the primary cause of road project construction delays as the shortage of engineers in conducting detailed proposed projects surveys resulting in incomplete project scope definition before contractor's procurement. Other identified factors were service providers delaying the removal of existing public utility infrastructure from project sites, client funding issues, scope changes, and client delays in issuing instructions to the contractors during project implementation. Another factor was the shortage of construction equipment and construction materials experienced by some appointed contractors.Research limitations/implicationsOnly road construction projects and stakeholders operating from Blantyre city, Malawi, were contacted for the study; thus, the findings may not be generalizable.Practical implicationsThere is an urgent need to increase technical employees, especially engineers and other critical technical staff such as quantity surveyors in Blantyre. Employees' conditions of service should be conducive to attract qualified people to undertake effective management and assessment of projects before commencement to identify the feasibility of proposed projects to decrease the rate of road construction project delays.Originality/valueThe study has established Blantyre city's core challenges in implementing its road projects seamlessly and has provided mitigation measures for dealing with the shortcomings.

Optimalisasi Biaya dan Waktu Proyek Kontruksi Pelebaran Jalan Menggunakan Earned Value

In a construction project, there are several aspects that cause the project not to go according to plan. Cost and time are aspects that need to be considered to avoid losses incurred in a project. Jombang-ploso-legundi-gresik road project is one of the road widening projects carried out by PT. Mix Pro Indonesia. The project was carried out with the aim that access to (Surabaya-Mojokerto) or further trans Java toll road is quicker safe and smoother. This research aims to optimize the cost and time on the project using the Earned Value method. Calculations include the calculation of ACWP (Actual Cost of Work Performance), BCWS (Budgeted Cost Work Schedule), and BCWP (Budgeted Cost for Work Performed) using the Earned Value method. From these parameters, estimate aspects of cost and time. As well as project analysis of acceleration on a critical trajectory of work. The results of calculations in the 12th week obtained a BCWS value of Rp 1,216,677,846,400 BCWP = Rp 3,040,372,140,080, ACWP = Rp 3,678,560,000. CV value = -Rp 109,203,495.92, SV = Rp 895,646,816.82, CPI = 0.827, and for SPI = 2,499. From these results it can be seen that the CPI value < 1 which means that there are project expenditures that exceed the original plan. With the results, it can be used as a reference in the implementation of project activities.