Penentuan Tebal Perkerasan Lentur Berdasarkan Nilai CBR (California Bearing Ratio) dan ESWL (Equivalent Single Wheel Load) Pesawat Rencana Pada Perencanaan Pembangunan Bandar Udara Baru di Karawang

WARTA ARDHIA ◽  
2013 ◽  
Vol 39 (3) ◽  
pp. 181-191
Author(s):  
Ataline Muliasari ◽  
Lukiana Lukiana
Keyword(s):  
Coastal Area ◽  
Agricultural Land ◽  
California Bearing Ratio ◽  
Land Acquisition ◽  
Minimum Thickness ◽  
Wheel Load ◽  
Pavement Layers ◽  
Planning Development ◽  
Pavement Thickness

Construction of a new airport in Karawang until now has not been located. However, to simplify the process of land acquisition, the airport might be located in the coastal area so it does not interfere agricultural land and forestry. This study intends to support the construction of a new airport in Karawang which aims at adjusting procedure of California Bearing Ratio (CBR) in the cilamaya area to pavement thickness on the airport planning development. The study concluded that the minimum thickness of pavement layers in Karawang new airport is 118 cm. The construction carried out in accordance with the value of CBR in the cilamaya area and consider the value of ESWL (Equivalent Single Wheel Load) Boeing 737-900 ER. Rencana pembangunan bandar udara baru Karawang yang banyak mendapatkan dukungan pengguna jasa penerbangan, hingga saat ini belum ditentukan lokasinya. Tetapi, untuk mempermudah proses pembebasan lahan, dimungkinkan pembangunan bandar udara ini akan dilaksanakan di area pantai agar tidak mengganggu lahan pertanian dan Perhutani. Penelitian ini bermaksud untuk mendukung pembangunan bandar udara baru di Karawang, yang bertujuan menyesuaikan prosedur CBR (California Bearing Ratio) di area Cilamaya terhadap perkerasan pada perencanaan pembangunan bandar udara baru di Karawang. Hasil penelitian menyimpulkan bahwa tebal lapisan perkerasan minimum bandar udara baru di Karawang adalah 118 cm, pembangunan dilaksanakan di area Cilamaya sesuai dengan nilai CBR (California Bearing Ratio), dan memperhatikan nilai ESWL (Equivalent Single Wheel Load) pesawat Boeing 737-900 ER adalah 118 cm.

scholarly journals Experimental Investigation on Design of Thickness for Flexible Pavement Subgrade Soils using CBR Approach

2020 ◽  
Vol 184 ◽  
pp. 01087
Author(s):  
Y. Kamala Raju ◽  
C. Vivek Kumar
Keyword(s):  
Experimental Investigation ◽  
Bearing Capacity ◽  
Flexible Pavements ◽  
Flexible Pavement ◽  
California Bearing Ratio ◽  
Cement Concrete ◽  
Wheel Load ◽  
Subgrade Soils ◽  
Pavement Thickness

This paper aim’s to ensure that the transmitted stresses due to wheel load are adequately reduced, so that they will not exceed bearing capacity of the sub- grade. This present study deals with the design thickness of flexible pavements, where majority of the Indian roads are flexible pavements having bituminous layer. Earlier, due to the scarcity of cement and India went for flexible pavements with bituminous toppings. This flexible pavement is preferred over cement concrete roads as they have a great advantage that these can be strengthened and improved in stages with the growth of traffic. With a major advantage of this roads and their surfaces milled and recycled for rehabilitation. The flexible pavements are less expensive also about initial investment and maintenance. In this present study, the flexible pavement thickness is designed for both sub grade soils as per IRC:37-2001 code and its pavement thickness is calculated by California Bearing Ratio (CBR)method.

scholarly journals Impacts of Agricultural Land Acquisition for Urbanization on Agricultural Activities of Affected Households: A Case Study in Huong Thuy Town, Thua Thien Hue Province, Vietnam

2021 ◽  
Vol 13 (15) ◽  
pp. 8559
Author(s):  
Nhung Pham Thi ◽  
Martin Kappas ◽  
Heiko Faust
Keyword(s):  
Agricultural Development ◽  
Agricultural Land ◽  
Rice Cultivation ◽  
Mixed Data ◽  
Land Acquisition ◽  
Agricultural Activity ◽  
Agricultural Activities ◽  
Farmland Abandonment ◽  
Before And After ◽  
The Government

Agricultural land acquisition for urbanization (ALAFU) has strongly impacted agriculture in Vietnam during the last decades. Given the mixed data obtained from a survey with 50 households who lost 50% of their farmland area (in-depth interviews, a group-focused discussion and observation) this study shows the different impacts of ALAFU on each agricultural activity of affected household by comparing before and after ALAFU. Rice cultivation and animal breeding have sharply declined, but potted flower plantation (PFP) has quickly grown and is the main income of 34% of surveyed households. Rice cultivation has declined not only as a result of agricultural land acquisition, which has resulted in the loss of rice land, but also as a result of urbanization, which has resulted in rice land abandonment. Conversely, PFP is growing due to advantages associated with urbanization, such as a good consumer market and upgraded infrastructure. However, whether they are declining or increasing, all agricultural activities have to face challenges related to the shortcomings in agricultural land allocation and agricultural development plans. This study suggests that if ALAFU projects are continued, the government should evaluate agricultural development and forecast farmland abandonment after ALAFU. Simultaneously, they should put more effort into maintaining agriculture in the form of peri-urban or urban agriculture, which is significant for sustainable development in affected communities.

scholarly journals STUDI PERBANDINGAN MENGENAI PERHITUNGAN BESARAN REGANGAN DI LAPISAN SUBGRADE AKIBAT BEBAN RODA KENDARAAN UNTUK JALAN RAYA KELAS I

2020 ◽  
Vol 3 (4) ◽  
pp. 1077
Author(s):  
Leonardo Lijuwardi ◽  
Gregorius Sandjaja Sentosa
Keyword(s):  
Flexible Pavement ◽  
Layer System ◽  
The Road ◽  
Strain Calculation ◽  
Road Pavement ◽  
Large Contact Area ◽  
Vehicle Loads ◽  
Pavement Layers ◽  
Road Data ◽  
Pavement Thickness

ABSTRACTMulti-layer systems theory is one of the concepts used in finding out the amount of strain and stress that occurs in the road pavement system due to vehicle loads. The purpose and goal of this study is to analyze the amount of strain that occurs on the pavement systems in Indonesia, especially in the subgrade position. The type of multi-layer system theory used to calculate the amount of strain includes the theory of one layer systems, two-layer systems and three-layer systems with data analyzed in the form of pavement thickness and type of pavement material.Based on this study, the value of strain obtained by the theory of one-layer system in some of the road data reviewed are 533.8658 microstrains, 361.3456 microstrains, 1577.987601 microstrains, 618,012 microstrains and 140.3075 microstrains. For research with two-layers systems, the results obtained are 1116.2920 microstrains, 544.322 microstrains, 1448.0839 microstrains, 734.1844 microstrains and 738.7226 microstrains. For research with three-layers system, results obtained are 72.20275278; 70.80346908; 192.9638366; 123.1150377dan 391.8845636 microstrains. The results with the calculation of one-layer system are very large because the modulus values of the subgrade layers are not reviewed and only pavement thickness is reviewed. As for calculations with the theory of two-layer systems, the results obtained are far greater than one-layer systems, due to the limitations of the graph to find the value of the ratio between thickness and large contact area. Calculation with the theory of three-layers system is a strain calculation which has a much smaller value compared to the theory of one-layer system and two- layer system. This is because this theory divides the calculated pavement layers into three layers, which is in accordance with the flexible pavement system which divides the pavement layers into three layers, so this calculation is the most ideal calculation because it approaches its original condition.ABSTRAKTeori sistem lapis banyak merupakan salah satu konsep yang digunakan dalam mencari tahu besaran regangan dan tegangan yang terjadi pada sistem perkerasan jalan raya akibat beban kendaraan. Maksud dan tujuan dari penelitian ini adalah untuk menganalisis mengenai besaran regangan yang terjadi pada jalan raya di Indonesia pada lapisan tanah dasar khususnya di posisi permukaan tanah dasar. Adapun jenis teori sistem lapis banyak yang digunakan untuk menghitung besaran regangan tersebut antara lain teori one-layer systems, two-layers systems dan three-layers systems dengan data yang dianalisis berupa tebal perkerasan dan jenis material perkerasan jalan.Berdasarkan penelitian ini, adapun nilai dari regangan yang diperoleh dengan teori one-layer system di beberapa data jalan yang ditinjau, antara lain 533.8658 mikrostrain, 361.3456 mikrostrain, 1577.987601 mikrostrain, 618.012 mikrostrain dan 140.3075 mikrostrain. Untuk penelitian dengan two-layers system diperoleh hasil yaitu 1116.2920 mikrostrain, 544.322 mikrostrain, 1448.0839 mikrostrain, 734.1844 mikrostrain dan 738.7226 mikrostrain. Untuk penelitian dengan three-layers system diperoleh hasil antara lain 72.20275278; 70.80346908; 192.9638366; 123.1150377 dan 391.8845636 mikrostrain. Hasil dengan perhitungan one-layer system sangat besar dikarenakan nilai modulus lapisan dari subgrade tidak ditinjau dan hanya meninjau tebal perkerasan. Adapun untuk perhitungan dengan teori two-layers system, hasil yang diperoleh jauh lebih besar daripada one-layer system, yang disebabkan keterbatasan dari grafik untuk mencari nilai perbandingan antara ketebalan dan luas kontak yang besar. Perhitungan dengan teori three-layers system merupakan perhitungan regangan yang memiliki nilai jauh lebih kecil dibandingkan dengan teori one-layer system dan two-layer systems. Hal ini dikarenakan teori ini membagi lapisan perkerasan yang dihitung menjadi tiga buah lapisan, yang sesuai dengan sistem perkerasan lentur yang membagi lapisan perkerasan menjadi tiga buah lapisan, sehingga perhitungan ini merupakan perhitungan yang paling ideal karena mendekati kondisi aslinya.

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

2022 ◽  
Vol 10 (1) ◽  
pp. 11-28
Author(s):  
Alvina Praha Laili ◽  
Akhmad Hasanuddin ◽  
Luthfi Amri Wicaksono
Keyword(s):  
Surface Layer ◽  
Service Providers ◽  
Flexible Pavements ◽  
Secondary Data ◽  
California Bearing Ratio ◽  
High Effect ◽  
Ratio Data ◽  
Road Project ◽  
Pavement Thickness

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.

scholarly journals The Effect of Rhizobium japonicum on the Growth of Soybean Cultivars in Coastal Area

2019 ◽  
Vol 4 (1) ◽  
pp. 33
Author(s):  
Okti Purwaningsih ◽  
C. Tri Kusumastuti ◽  
Y. Sulistyo Nugroho ◽  
Casper Yoda Morib
Keyword(s):  
Coastal Area ◽  
Root Nodule ◽  
Agricultural Land ◽  
Dry Weight ◽  
Rhizobium Japonicum ◽  
Soybean Cultivars ◽  
Randomized Design ◽  
Two Factors ◽  
Cultivation Technology ◽  
Soybean Plants

The natural resources of the coastal area in Indonesia have the potential to be developed as an agricultural land with the support of both cultivation technology and land processing,  which one of them was done by using Rhizobium japonicum bacteria to meet the need of nitrogen in the soybean plants. This study aimed to determine the characteristics of nitrogen fixation in various soybean cultivars planted in the coastal area. The research was conducted in Mancingan, Parangtritis, Kretek, Bantul, DIY. The study was designed in Completely Randomized Design which consisted of two factors and was repeated three times. Factor I was Rhizobium japonicum inoculation (with inoculation and without inoculation); factor II was 10 various cultivars of soybean (Grobogan, Burangrang, Argomulyo, Anjasmara, Dena 1, Gema, Kaba, Wilis, Sinabung, Gepak Kuning). The results showed that the inoculation of Rhizobium japonicum in soybean cultivars in a coastal area could increase the number of root nodule, dry weight of root nodule, dry seed weight per plant, and harvest index. Burangrang cultivar planted in the coastal area was the most responsive to Rhizobium japonicum inoculation among other soybean cultivars tested.

scholarly journals PROBABILITAS PERUBAHAN TUTUPAN LAHAN BERDASARKAN KEBERADAAN LOKASI WISATA DI WILAYAH PESISIR SARBAGITA

2019 ◽  
Vol 1 (1) ◽  
pp. 33-39
Author(s):  
Wayan Damar Windu Kurniawan
Keyword(s):  
Land Cover ◽  
Land Cover Change ◽  
Coastal Area ◽  
Agricultural Land ◽  
Rapid Development ◽  
Coastal Region ◽  
Limiting Factors ◽  
Landsat Images ◽  
The Road ◽  
Network Pattern

he availability of land for fulfillment of space in the Sarbagita coastal area is increasingly limited. This iscaused by the rapid development of tourism in the Sarbagita coastal region, which can eliminate a large portion ofproductive agricultural land. This study specifically examines the probability value of land cover change, especially fromnon-built up area to built up area, in the Sarbagita coastal area until 2030. Calculation of the probability of land coverchange is done through fuzzy set logic which is assessed based on 1 main parameter, namely tourist location and 2supporting parameters, namely accessibility and service facilities, and also limiting factors. The value of the fuzzymembership is taken from Landsat images from 1995 to 2015. The results show the probability of changes in land coverhas values from 0 (very low) to 0.97 (very high). This means that there is no one land that must change (value 1) fromnon-built land to being built. The probability of a high land cover change tends to follow the road network pattern.  

Penyelesaian Atas “Tanah Sisa” dalam Pengadaan Tanah untuk Pembangunan Jalan Tol Trans Sumatera di Lampung

Tunas Agraria ◽  
2018 ◽  
Vol 1 (1) ◽  
Author(s):  
Zahra Ats Tsaurah ◽  
Julius Sembiring ◽  
Rofik Laksamana
Keyword(s):  
Land Use ◽  
Agricultural Land ◽  
Land Acquisition ◽  
Director General ◽  
Compensation Mechanism ◽  
Toll Road ◽  
Technical Guidance

IntisariBerdasarkan Pasal 35 Undang-undang Pengadaan Tanah Nomor 2 Tahun 2012, “tanah sisa” pada pengadaan tanah untuk kepentingan umum dapat diberikan ganti kerugian secara utuh atas permintaan dari pemilik tanah. Senyatanya, pengadaan tanah untuk pembangunan Jalan Tol Trans Sumatera (JTTS) Ruas Terbanggi Besar – Pematang Panggang Provinsi Lampung belum diberikan ganti kerugian terhadap “tanah sisa”. Hasil penelitian ini menunjukkan bahwa kriteria tanah sisa dibagi berdasarkan penggunaan tanahnya, yaitu tanah pertanian dan tanah non pertanian. Kriteria tanah sisa pertanian adalah kondisi tanaman, hasil produksi, bentuk tanah dan akses tanah. Kriteria tanah sisa non pertanian adalah kondisi tanah, kenyamanan pemilik, bentuk tanah dan akses tanah. Mekanisme ganti kerugian tanah sisa yang paling baik digunakan adalah berbarengan dengan ganti kerugian trase tol. Langkah yang perlu dilakukan adalah Direktur Jenderal Pengadaan Tanah perlu memberikan petunjuk teknis mengenai kriteria tanah sisa dan Panitia Pengadaan Tanah di Lampung harus segera melakukan tindaklanjut atas kepemilikan tanah sisa. Kata Kunci : pengadaan tanah, tanah sisa, JTTS, penelitian  AbstractBased on Article 35 of Land Acquisition Law Number 2 Year 2012, "residual land" on Land Acquisition for public purposes may be entirely redeemed at the request of the landowner. In fact, the land acquisition for the construction of Trans-Sumatra Toll Road (JTTS) inTerbanggi Besar - PematangPanggang, Lampung Province has not been compensated for "residual land".The results of this researchare that the residual land criterias are divided based on the land use, that is agricultural land and non-agricultural land. Criterias for agricultural land are the condition of plant,  the results of  its production, the shape of  land and the access of land. . Criterias for non-agricultural land arethe condition of the land, the comfort of the owner, the shape of the land and the access of the land. The best compensation mechanism of residual land was given at the same time with the trace area. Steps that need to be done are the Director General of Land Acquisition needs to provide technical guidance on the criteria of residual land and the Land Acquisition Committee in Lampung should immediately follow up the ownership of the residual land. Kata Kunci : Land acquisition, residual land, JTTS, research

scholarly journals Improving the Socioeconomic Status of Rural Women Associated with Agricultural Land Acquisition: A Case Study in Huong Thuy Town, Thua Thien Hue Province, Vietnam

Land ◽  
2019 ◽  
Vol 8 (10) ◽  
pp. 151 ◽  
Author(s):  
Nhung Pham Thi ◽  
Martin Kappas ◽  
Heiko Faust
Keyword(s):  
Socioeconomic Status ◽  
Rural Women ◽  
Rural Areas ◽  
Agricultural Land ◽  
Occupational Status ◽  
Land Acquisition ◽  
Primary Data ◽  
Rehabilitation Programs ◽  
Sustainable Livelihoods Framework ◽  
Research Findings

Since the 2000s, agricultural land acquisition (ALA) for urbanization and industrialization has been quickly implemented in Vietnam, which has led to a huge socioeconomic transformation in rural areas. This paper applies the sustainable livelihoods framework to analyze how ALA has impacted the socioeconomic status (SES) of rural women whose agricultural land was acquired. To get primary data, we surveyed 150 affected households, conducted three group discussions and interviewed nine key informants. The research findings reveal that ALA, when applied toward urbanization, has significantly improved the occupational status of rural women by creating non-farm job opportunities that have improved their income, socioeconomic knowledge and working skills. While their SES has been noticeably enhanced, these positive impacts are still limited in cases where ALA is applied toward industrial and energy development, since these purposes do not create many new jobs. Moreover, the unclear responsibility of stakeholders and inadequate livelihood rehabilitation programs of ALA projects have obstructed the opportunities of rural women. To improve the SES of rural women, we recommend that ALA policy initiate a flexible livelihoods support plan based on the purpose of ALA and the concrete responsibilities of stakeholders and investors.

Short-term Land Acquisition, Long-term Impacts: The Case of Houbara Bustard Hunting in South Punjab, Pakistan

2019 ◽  
Vol 54 (3) ◽  
pp. 390-408
Author(s):  
Salman Ata ◽  
Babar Shahbaz ◽  
Muhammad Arif Watto ◽  
Muhammad Tahir Siddiqui
Keyword(s):  
Evaluation System ◽  
Agricultural Land ◽  
Local Population ◽  
Land Acquisition ◽  
Limited Area ◽  
Sustainable Livelihood ◽  
Hunting Season ◽  
Houbara Bustard ◽  
The Impact

Pakistan provides seasonal hunting permits to the rulers of Gulf countries for hunting of Asian Houbara bustard ( Chlamydotis macqueenii) in different parts of the country. This research deals with (transnational) seasonal land acquisition of different rangelands/deserts of the Punjab province of Pakistan. So far, no comprehensive research has been conducted in Pakistan on this issue. This research attempts to address the impact of seasonal land grabbing by the foreigners on livelihood assets of local stakeholders in South Punjab, Pakistan. Based on the idea of ‘control grabbing’, this research uses ‘sustainable livelihood framework’ as an analytical framework. Quantitative and qualitative data were acquired from three (out of a total nine) randomly selected hunting sanctuaries in the districts of Rajanpur and Dera Ghazi Khan. The results revealed that natural assets of local population (agricultural land and rangeland) are adversely affected during the entire hunting season. Limited access to natural assets (especially livestock fodder) has long-term negative impacts on livelihood diversification of the locals as the number of livestock – one of the most important assets of respondents – is continuously decreasing in the case study area. We recommend that land enclosure should be restricted to a limited area for a limited time, and that the Government should develop an effective monitoring and evaluation system.

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