检索结果-内蒙古大学图书馆

The influence of earthquake force directions on building construction in Lombok Island: a case study of Pandanduri dam in East Lombok

引用

IOP Conference Series: Earth and Environmental Science 2020年第1期413卷

作者： F Afrizal D S Agustawijaya A Lestari Post-Graduate Study Program in Civil Engineering University of Mataram Indonesia.

Lombok Island is one of the regions in Indonesia that has a relatively high risk of earthquakes due to being flanked by two earthquake sources, namely from the south in the form of Indo-Australian plate thrusting (subduction mega-thrust) and north there is a north arc pressure (Flores thrust). Pandanduri Dam is located in the direction of the earthquake force N 171° E. This study aims to determine changes in dam planning using earthquake force calculations from SNI 1726-2002 to SNI 1726-2012 and the effect of the direction of earthquake strength on dam stability. The analysis results show that earthquake risk in Lombok Island is 0.34 g and 0.42 g for the possibility of exceeding 10% and 2% in 50 years. SNI changes in earthquake force calculations have decreased by 26% for 500 years and an increase of 10% for 2500 years. The percentage of the earthquake force directions is not known to be greater than the percentage the earthquake force directions known that N 171°E is influenced by the angle produced by the earthquake direction N 171° E which is 0.094° for the main force direction of the dam and 89,906° for the direction perpendicular to the dam.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Drainage analysis by applying the rational method on flood discharge

引用

AIP Conference Proceedings 2024年第1期3070卷

作者： Adam Safitri Nono Carsono Lia Amaliah Yunita Rosdiana Dewi Civil Engineering Study Program - Sekolah Tinggi Teknologi Cirebon Cirebon Indonesia

The construction of the Kuningan East Ring Road is the construction of a new road that aims to relieve congestion by dividing continuous traffic on the 7.2 KM Cirebon-Kuningan road. To anticipate the occurrence of puddles on the road, road facilities in the form of drainage are needed. This study was carried out in four stages, namely site surveys, problem identification, data collection, and data analysis. Data obtained were in the form of primary data and secondary data which were then analyzed according to the needs of the study. For the hydrological analysis, rainfall data were acquired from two rainfall stations, namely Lame Dam Station in Ciniru Village and Linggarjati Station, for a span of 10 years from 2012 to 2021. Calculation of the maximum rainfall area applied the Algebraic Average Method, with obtained average rainfall for the last 10 years being 978 mm. Furthermore, the analysis of rainfall intensity using the Mononobe Equation attained result of 84.199 mm/hour. The analysis of flood discharge using the Rational Method obtained a design flood discharge of 0.187 m³. Meanwhile, the channel planning and cross section used U-Ditch DS 3 with dimensions of 1.10 m x 1.25 m and a channel capacity of 0.580 m³/second. Based on the calculation results, it can be concluded that the channel capacity is greater than the design flood discharge. Thus, the drainage planning requirements have been met.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Physical progress analysis of structure works using earned value management integrated with artificial neural network

引用

AIP Conference Proceedings 2021年第1期2447卷

作者： Muhammad Farhan Apif Miptahul Hajji Aisyah Larasati 1Industrial Engineering Study Program State University of Malang Indonesia 2Civil Engineering Study Program State University of Malang Indonesia

Analysis of physical progress is useful for knowing project conditions and avoiding potential delays in construction projects. Analysis in this study aims to evaluate physical progress and estimate the completion time of structure works of Integrated Building Classroom State University of Malang (GKB UM) by integrating Earned Value Management and Artificial Neural Network. The results showed that the cumulative physical progress of the structural work was delayed by 24 weeks. The delay in loading test bored pile due to weather, damage to the tower crane and concrete pump tools, mobilization of tools and design changes to the superstructure were some of the problems encountered during the process of building structure works on GKB UM. The Artificial Neural Network model produces a small deviation between the predicted and the actual physical progress and suitable for estimating project completion.

关键词：

来源：评论

学校读者我要写书评

暂无评论

The study of Sedimentation at Jongkong Reservoir in District Central of Bangka through Erosion of Catchment Area

引用

IOP Conference Series: Earth and Environmental Science 2020年第1期537卷

作者： Miskar Maini Mashuri Civil Engineering Study Program Faculty of Infrastructure and Regional Engineering Institut Teknologi Sumatera Indonesia

Jongkong reservoir creates a reservoir of water that is used for the purposes of raw water as fundamental media for improvement of drinking water production especially at dry season for the District of Koba. The advantage of being able to hold water in wet season and releasing it in dry season will be detained if the life storage of the reservoir can be utilized effectively, but sedimentation problem will decrease its volume which can influence the life time of reservoir. Finally the reservoir becomes less effective, so it is very important to study. The method which is used to predict an average erosion rate in the catchment area considers factors of rain erosivity, soil erodibility, ground inclination of slope or slope length, management of crop and land, soil conservation. Calculation was done by using the USLE equation (Universal Soil Loss Equation) which was developed by Wischmeier and Smith (1965, 1978). From this research result, the prediction of surface erosion rate in the basin catchment area in the year 2019 is equal to 53.20 mm/year or equivalent with 62,491.92 m3/year, and the value of Sediment Delivery Ratio (SDR) is equal to 32,28 %. The number of material which eroded is equal to 957.59 Ton/Ha/year so it is classified into the medium erosion class category. The dead storage of 5% of the the volume of the reservoir cage will be fully charged in the year 2022 or for 3 The next year and the total volume of the reservoir Ridge will be full of sediment in the year 2062 or 43 years.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Floor Slab Analysis (Case study: One Residence Apartment Batam Center)

引用

Journal of Physics: Conference Series 2019年第1期1230卷

作者： Yayuk Setyaning Astutik Civil Engineering Study Program Planning and Civil Engineering Faculty Universitas Internasional Batam Riau Island – 29442.

Reinforced concrete slab are widely used in civil buildings, including as building floors, roof floors, bridge floors and dock floors. The load acting on the slab is generally calculated against gravitational loads. This study aims to analyse floor slab in One Residence Batam Center Apartment Construction Project. The moment method is used to predict the magnitude of frame and shrinkage values that refer to 2002 of SNI. Loading is carried out from dead loads and live loads with a two-way reinforcement system. Reinforcement is done using steel with a diameter of 10 mm. So that the minimum area is 313 mm square with a distance of 250 mm and is in the safe category. From the calculation results obtained the concrete elastic modulus obtained by 250 MPa with a reinforcement ratio of 0.0025. Checking the time dependency factor for dead loads is carried out within 3 months, 6 months, 12 months and more than 5 years. Long-term deflection due to frame and shrinkage is still in the safe category.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Characteristics of Leachate and Their Effect on Shallow Groundwater Quality (Case study : TPA Cipayung, Depok)

引用

IOP Conference Series: Earth and Environmental Science 2018年第1期120卷

作者： Atika Widiastuti Djoko M. Hartono Setyo S. Moersidik Irma Gusniani Environmental Engineering Study Program Civil Engineering Departement University of Indonesia Depok 16424 Indonesia

The problems arising from landfill activity is leaked leachate that is not absorbed well into leachate stabilization pond which furthermore contaminates shallow groundwater around landfill, include Cipayung landfill. The aims of this study is to determine the characteristics of leachate and their effect on shallow groundwater quality around landfill based on temperature, pH, Total Suspended Solids (TSS), Biological Oxygen Demand (BOD), Chemical Oxygen Demand (COD), Total Nitrogen (TN), Mercury (Hg), and fecal coliform. Data were analyzed based on leachate samples at influent point, effluent point, and 7 sampling points of residents's well with distance variation every 100 meters within 300 meters radius having leachate stabilization pond as benchmark. According to the standard of Indonesia's Ministry of Environment and Forestry law No. 59 of 2016, the results showed that leachate quality was still above the standard of BOD, COD, and Total Nitrogen parameters; 4178.0 mg/L, 70556.0 mg/L and 373.3 mg/L for influent point, and 3142.0 mg/L, 9055.2 mg/L, and 350 mg/L for the effluent point. Pollution Index of shallow groundwater is between lightly and moderately contaminated. This study showed that the further the distance between sampling point and leachate stabilization pond is, the lower the Polution Index is.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Characterization of Sludge Generated from Acid Mine Drainage Treatment Plants

引用

Journal of Physics: Conference Series 2019年第1期1351卷

作者： N. Amanda S. S. Moersidik Environmental Engineering Study Program Department of Civil Engineering University of Indonesia Depok 16424 Indonesia

One of the wastes generated from coal mining area is the voluminous sludge, laden of metals. This sludge comes as precipitate which is produced from acid mine drainage active treatment ponds and always been disposed to the landfill. Limestone is one of the typical pH neutralization agents which is often used to bind the metal content of acid mine drainage in active treatment and will be settled at the bottom of the settling ponds. The goal of this study is to determine the potential utilization of acid mine drainage sludge in order to reduce the environmental problem caused by sludge accumulation so that this could become a valuable material. In this study, physical and chemical characterization from the sludge in solid form was carried out by laboratory analysis using SEM-EDS to see surface morphology, X-Ray Diffraction for mineralogy analysis, the chemical composition was done by using X-Ray Fluorescence and also BET method to see the surface area of the sample. The results of the characterization have shown that acid mine drainage sludge was very promising to be utilized as adsorbent material for removing pollutant in wastewater and further research is needed for the application to the wastewater technology.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Performance study of Regional Water Supply Company of Ternate City, North Maluku

引用

Journal of Physics: Conference Series 2021年第1期1899卷

作者： Nani Nagu Edward R Ahadian Lita A. Latif H Fabanyo Civil Engineering Study Program Faculty of Engineering Universitas Khairun Mechanical Engineering Faculty of Engineering Universitas Khairun

Regional Water Supply Company (RWSC) of Ternate City is a company managed by the local government which in its operation needs to prioritize the fulfillment of clean water for communities. Therefore the services of RWSC should based on the standards of quality service provided by the National Agency for the Improvement of Drinking Water Supply System. On the other side, the demand for clean water supply and services is increasing every year. This is caused by an increase in population and the development of cities or service areas relating to the improvement of the socio-economic. The purpose of this study is to evaluate the performance of water supply service providers in Ternate City. Data analysis based on the guidelines from the National Agency for the Improvement of Drinking Water Supply System involves several indicators such as the financial aspects, service aspects, operational aspects, and aspects of human resources. The result shows that the score of the financial reaches 0.92, the service aspect 0.88, the operational aspect 0.88, and the human resource aspect 0.52. These results show that the performance of Regional Water Supply Company (RWSC) of Ternate City achieves score 3.2 and it indicates that the performance of Regional Water Supply Company (RWSC) of Ternate City in the healthy category.

关键词：

来源：评论

学校读者我要写书评

暂无评论

The obstacles of green building implementation in Semarang city

引用

IOP Conference Series: Earth and Environmental Science 2021年第1期700卷

作者： D N A Nugradi Study Program of Architecture Department of Civil Engineering Faculty of Engineering Universitas Negeri Semarang Indonesia

The Semarang City Government has issued a Mayor Regulation on Green Buildings since 2019. Since then the construction of buildings with a certain floor area in Semarang City must follow this regulation. Evaluating implementation constraints related to green building construction based on the experience of the development actors, is an important thing to do. This study aims to identify obstacles in realizing green buildings in the city of Semarang. Data collection was carried out through a questionnaire survey of respondents from development actors involved in green buildings such as contractors, consultants and project owners and bureaucratic officials related to green building licensing. Data analysis was performed using descriptive analysis to reach agreement between respondents. Next, a hierarchy of these constraints will be sought. Constraints found in realizing green buildings are: lack of socialization from the city government, alternative materials, lack of best practices, experts, and financing. For this reason, a strategy is needed to overcome these obstacles from every aspect or based on a combined consideration of all aspects.

关键词：

来源：评论

学校读者我要写书评

暂无评论

The comparison of road network performance before and after the implementation of one-way system using prediction model

引用

AIP Conference Proceedings 2024年第1期2838卷

作者： Alfia Magfirona Nurul Hidayati Ari Wibowo Sri Sunarjono Budi Yulianto Civil Engineering Study Program Engineering Faculty Universitas Muhammadiyah Surakarta Indonesia Civil Engineering Master Study Program Engineering Faculty Universitas Muhammadiyah Surakarta Indonesia Transportation Agency of Surakarta Indonesia Dinas Perhubungan Surakarta Indonesia

One-way traffic networks maybe force drivers to bypass blockages to reach their destinations, potentially increasing trip distances. However, it is beneficial for anticipating some traffic problems in most urban traffic conditions—only a few studies concerned the regression approach for predicting road network performance models. As a result, this research aims to use the regression method to forecast the performance model of the road network before and after one-way traffic system implementation. The derived model equations are compared to see which ones substantially impact the road network’s performance. This study relies on secondary data from performance assessments of 26 roads before and after the system during morning peak hours of 06:30–07:30 AM. The independent variables (X) are data from segment analysis used, i.e., Volume (X1), Speed (X2), and Volume (X4), whereas the dependent variable (Y) is Level of Service. By attempting the model prediction multivariate linear regression modeling before the system, Y = 5.647 – 4.376X1+0.009X2+0.0003X4 tend better than others. It provided a more significant impact on LOS than other models provided by R-value 0.951 is higher than the other models. The R-square value is 0.904, which means that 90.4% of LOS is influenced by DS, V, and Q factors. Further research is needed to conduct in the form of additional other factors that can affect LOS.

关键词：

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：