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Simulasi Penggunaan Program Geostudio Slope/W 2007 dalam Menganalisis Stabilitas Lereng Dengan Jenis Tanah Lempung Berpasir pada Kondisi Tidak Jenuh, Kondisi Jenuh Sebagian, dan Kondisi Jenuh pentawan, yota; Afriani, Lusmeilia; Siregar, Amril Ma'ruf
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 5 No. 2 (2017): Edisi Juni 2017
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v5i2.686

Landslide is a natural disaster that often occurs in Lampung Province, particularly in WestLampung regency. The sliding occurs due to an increase in soil pore water stress in the rainyseason. Based on the research on the slopes, there is a safety factor value that can be used as areference for the degree of slope stability. One method to analyze the value of slope safety factoris by using the Geostudio Slope / W 2007 program.In this study, some cross sections of slope were simulated with 4 different water table conditions.The required soil properties index are: cohesion, c; natural angle of repose, φ; and unit weight ofdensity, γ .The analysis result shows that slope transversal cut shape have influence on slope stability. Theanalysis results on slopes with saturated conditions have a safety factor value of <1.25 and areclassified on unsafe slopes. In the unsaturated condition the whole simulation is classified as astable slope with a safety factor value> 1.25. Based on the analysis result, it can be inferred thatthe slope has insecured status. Thus, it is suggested to conduct such actions in order to preventlandslide.Key words : soil, slope stability, safety factor, geostudio slope/w.

STUDI PENGARUH WAKTU PEMERAMAN DAN KUAT TEKAN PAVING BLOCK DENGAN BAHAN DASAR TANAH LEMPUNG LUNAK, SEMEN DAN KAPUR MENGGUNAKAN ALAT PENETRASI MODIFIKASI wiguna, rifan; setyanto, setyanto; adha, idharmahadi
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 5 No. 3 (2017): Edisi September 2017
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v5i3.687

The use of paving blocks (concrete bricks) is widely used for various elements of building construction, on paving block work is often used for pavement road pavement, yard and public facilities, environmental roads and various other needs. This research is curing the paving block. This is intended for the maintenance of paving blocks using clay soil with lime and cement with varying curing time ie curing for 7 days, 14 days, 21 days, and 28 days with the aim of analyzing the optimum time of addictive substances ie cement and lime in Binding of particles. Based on the analysis, the cement and lime material greatly affect the value of compressive strength to paving block, at optimum curing time of 14 days, the highest value of compressive strength in post-burn samples of 12.58 Mpa and pre-burn of 6.92 MPa, with compressive strength value In the postburn sample the paving bloc now meets the quality standard c which can be applied to pedestrians based on SNI 03-0691-1996. Similarly, the results of the combustion of samples for 2 x 24 hours gained the compressive strength of the paving block is higher than the sample that is not done burning. The result of absorption value of paving block ranges from 7 - 9% hence absorption paving block fulfill specification of absorption value of paving block based on SNI 03-0691-1996 which is 3-10%.Keywords : paving block, organic clay oil, compressive strength, water absorption, brooded

Studi Analisis Penurunan Tanah Lempung Lunak dan Tanah Lempung Organik Menggunakan Pemodelan Matras Beton Bambu Nawawi, Nawawi; Afriani, Lusmeilia; Iswan, Iswan
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 5 No. 3 (2017): Edisi September 2017
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v5i3.688

The strength of infrastructure buildings is influenced by the type of soil underneath. One type of land that is widely found in the land in the province of Lampung is fine-grained soil. The fine grained soil is meant soft clay and organic clay. Construction of the above clay will experience significant land subsidence constraints when given the loading. The load that causes the pore water pressure increases so that the pore water out and soil decreases consolidatively. Therefore, it is necessary to study soil degradation using box test and bamboo concrete mats as a means of land degradation. The result of clay decline testing using boks modeling and bamboo concrete mat, soft clay experience faster rate of process of decline (Cv) than organic clay. The magnitude of soft clay (Cc) decline is less than that of organic clay. Soft clay volumes are also changing volume (Mv) faster than organic clay. Coeficient of compression(av) of soft clay is also faster than organic clay. The total decline in total soil over a 20 year period on soft clay is smaller than that of organic clay. Keywords : Clay, Test Box, Bamboo Concrete Mattress, Soil Consolidation

PENGARUH WAKTU PEMERAMAN TERHADAP UJI KUAT TEKAN PAVING BLOCK DARI CAMPURAN TANAH, SEMEN DAN PASIR MENGGUNAKAN ALAT PENETRASI MODIFIKASI MODIFIKASI Prabowo, Prasetio Putro; Setyanto, Setyanto; Adha, Idharmahadi
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 5 No. 2 (2017): Edisi Juni 2017
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v5i2.691

AbstractPaving blocks are compositions of building material constructed from a mixture of Portlandcement or other similar hydrolysis, water, and aggregate or without other additives which do notruduce the quality of the material. In this research, the process of making paving blocks using amodified penetration tool in oder to improve the paving blocks quality in accordance with SNI-03-0691-1996. The soil samples tested from Kota Baru, Lampung Selatan. The amount of mixturepaving blocks was 75% of soil, 10% of sand and 15% of cement. The variation of curing time were0 days. 7 days, 14 days and 28 days as well as with pre and post burning treatment on the pavingblocks samples. The result showed that the making of paving blocks using silt with additionalmaterial of cement and sand fulfill the requirement in SNI-03-0691-1996. The addition and thecuring done could improve the physical and mechanical properties of the soil. For thecompressive strength value of the paving blocks with or without burning treatment, the best resultis shown in addition of 75% soil, 10% of sand and 15% of cement with 14 days curing time whichfulfill the requirement in SNI-03-0691-1996. The result of water absorption value which wasbetween 20,7% - 24,2% did not meet the specification in SNI-03-0691, 1996 that is 3% - 10%.Keywords : paving block, silt, compressive strength, curing time, water absorption.

PENGARUH WAKTU PEMERAMAN TERHADAP UJI KUAT TEKAN PAVING BLOCK DARI CAMPURAN TANAH, SEMEN DAN PASIR MENGGUNAKAN ALAT PENETRASI MODIFIKASI MODIFIKASI prabowo, prasetio putro; setyanto, setyanto; adha, idharmahadi
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 5 No. 3 (2017): Edisi September 2017
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v5i3.692

AbstractPaving blocks are compositions of building material constructed from a mixture of Portlandcement or other similar hydrolysis, water, and aggregate or without other additives which do notruduce the quality of the material. In this research, the process of making paving blocks using amodified penetration tool in oder to improve the paving blocks quality in accordance with SNI-03-0691-1996. The soil samples tested from Kota Baru, Lampung Selatan. The amount of mixturepaving blocks was 75% of soil, 10% of sand and 15% of cement. The variation of curing time were0 days. 7 days, 14 days and 28 days as well as with pre and post burning treatment on the pavingblocks samples. The result showed that the making of paving blocks using silt with additionalmaterial of cement and sand fulfill the requirement in SNI-03-0691-1996. The addition and thecuring done could improve the physical and mechanical properties of the soil. For thecompressive strength value of the paving blocks with or without burning treatment, the best resultis shown in addition of 75% soil, 10% of sand and 15% of cement with 14 days curing time whichfulfill the requirement in SNI-03-0691-1996. The result of water absorption value which wasbetween 20,7% - 24,2% did not meet the specification in SNI-03-0691, 1996 that is 3% - 10%.Keywords : paving block, silt, compressive strength, curing time, water absorption.

IDENTIFICATION OF SPRING IN EAST LAMPUNG hari perdana, rudi; Eko Susilo, Gatot; Romdania, Yuda
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 5 No. 3 (2017): Edisi September 2017
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v5i3.694

Water is the source for life. Earth is called the blue planet, as water covers three-quarters of Earth's surface. It's just that most of the sea water (salt water). Generally, the condition springs in Indonesia experienced a decline in the amount and debit, were damaged in the catchment area and the surrounding environment. To determine the existence of water resources, necessary to identify water resources. This research is to identify the sources of springs in knowing the status of water resources. The primary data collection is done by identifying the condition of land cover in the catchment area, the condition of the springs, the condition of land cover in a radius of 200 m, the performance of the fountain, the critical level of water catchment areas, the critical level of water catchment areas, the critical level of a radius of 200 m, utilization springs, and the dependence of communities on water resources. While the collection of secondary data obtained from BPLHD Kab. East Lampung in the form of water quality data from 12 springs. Spring Water Quality Analysis using WQI Malaysia with graphic works of Dr. GatotEkoSusilo, S.T., M.Sc. From the calculations, the average value of the 12 WQI water source is 95.1, meaning that all 12 springs are so richly used by people for drinking, bathing, cooking and others. The 12 water spring in the district of Batang Among them there are 5 springs, in the district of Marga Tiga there are 5 springs, in the District of Sri Bawono there is one source of water, and in District Jabung there is one source of water. Keywords: Water, Water Quality, East Lampung Spring Water, Water Quality Index Malaysia

Pengaruh Waktu Perendaman Terhadap Uji Kuat Tekan Paving Block Dengan Campuran Tanah, Pasir Dan Semen Menggunakan Alat Pemadat Modifikasi Agusni, Restu; Setyanto, Setyanto; Iswan, Iswan
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 5 No. 2 (2017): Edisi Juni 2017
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v5i2.703

Paving blocks are compositions of building material constructed from a mixture of Portland cement or other similar hydrolysis, water, and aggregate with or without other additives which do not reduce the quality of the material. Paving blocks in the field are made of cement, sand, aggregate, and water by mixing all the ingredients and form the paving blocks. In this research, the paving blocks are made of the mixture of soil, sand, and cement. In the process, the paving blocks are compacted by a modified penetration tool in order to improve the paving blocks quality in accordance with SNI-03-0691-1996.The soil samples used in this research were from Kota Baru, Lampung Selatan. The amount of mixture used for making the paving block was 75% of soil, 10% of sand and 15% of cement. The variations of curing time were 7 days, 14 days, 21 days and 28 days as well as with pre and post burning treatment on the paving block samples.The results of the compressive strength test to the paving blocks which are made of soil, sand, and cement showed that the cement and sand do not meet the standard of SNI 03-0691-1996 for the paving block classification because the highest compressive strength value is obtained by the paving blocks with pre and post burning treatment on the variation mixture of 75% soil, 10% sand, and 15% cement with the value 7,65 MPa and 7,25 MPa. The result of water absorption value which was between 16,6% - 25,4% do not meet the specification in SNI-03-0691-1996.Keywords: Paving block, silt, compressive strength, water absorption

Pengaruh Waktu Perendaman Terhadap Uji Kuat Tekan Paving Block Dengan Campuran Tanah, Pasir Dan Semen Menggunakan Alat Pemadat Modifikasi Agusni, Restu; Setyanto, Setyanto; Iswan, Iswan
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 5 No. 3 (2017): Edisi September 2017
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v5i3.704

Paving blocks are compositions of building material constructed from a mixture of Portland cement or other similar hydrolysis, water, and aggregate with or without other additives which do not reduce the quality of the material. Paving blocks in the field are made of cement, sand, aggregate, and water by mixing all the ingredients and form the paving blocks. In this research, the paving blocks are made of the mixture of soil, sand, and cement. In the process, the paving blocks are compacted by a modified penetration tool in order to improve the paving blocks quality in accordance with SNI-03-0691-1996.The soil samples used in this research were from Kota Baru, Lampung Selatan. The amount of mixture used for making the paving block was 75% of soil, 10% of sand and 15% of cement. The variations of curing time were 7 days, 14 days, 21 days and 28 days as well as with pre and post burning treatment on the paving block samples.The results of the compressive strength test to the paving blocks which are made of soil, sand, and cement showed that the cement and sand do not meet the standard of SNI 03-0691-1996 for the paving block classification because the highest compressive strength value is obtained by the paving blocks with pre and post burning treatment on the variation mixture of 75% soil, 10% sand, and 15% cement with the value 7,65 MPa and 7,25 MPa. The result of water absorption value which was between 16,6% - 25,4% do not meet the specification in SNI-03-0691-1996.Keywords: Paving block, silt, compressive strength, water absorption

STUDI KONVERSI ENERGI PEMADATAN TANAH DENGAN MODIFIED PROCTOR METHOD UNTUK TANAH PASIR BERLEMPUNG Ulfa, Siti Zahhara; Adha, Idharmahadi; Setyanto, Setyanto
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 5 No. 3 (2017): Edisi September 2017
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v5i3.724

Related to increased of society economics and the growth rate of vehicles, this needs to be balanced with facilities of transportation. So, a new road or repair existing road is needed. The physical and mechanical conditions of soil are closely related to the construction. It caused the soil has a very crucial role in supporting the construction. To obtain good quality pile of soil, soil compaction is required to stabilize against both structural or non-structural loads. In this study comparing the modified proctor method soil compaction energy with modified press compactor tools.The soil samples used is from Tirtayasa Region Sukabumi District Bandar Lampung, it consists of twelve samples used for modified press compactor tools tests, with pressure used are 5 MPa, 10 MPa, 15 MPa, and 20 MPa. For every pressure conducted for 3 soil samples.Laboratory experiment result shows that the maximum volume weight (γdmaks) of 1,42 gr/cm3 amount on modified proctor method tests with the results on modified press compactor tools obtain pressure value of 7 MPa value and the pressure on sheep foot rifling machine of 6,9 N/mm2.KEYWORDS : Modified Proctor, Modified Press Compactor Tools, Compaction, Soil Pile.

Analisis Desain Pondasi Rakit untuk Bangunan Bertingkat dengan Metode Konvensional Bahagianda, Dhyna Annisa Maghfira; Setyanto, Setyanto; Adha, Idharmahadi
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 5 No. 2 (2017): Edisi Juni 2017
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v5i2.726

The foundation of the building is usually divided into two parts: shallow foundation and deep foundation, depending on the location of hard soil and the depth ratio with the width of the foundation (D ≤ B). The foundation of this raft serves to mediate the surface of one or more columns within several lines or paths with the ground. The use of the raft foundation is used when the decline is a problem eg in soft soil. The foundation of raft becomes alternative choice seen from external factor that is implementation process which do not give impact to surrounding environment or building around it. In this study conducted data collection obtained from the results of laboratory tests in the form of data sondir results, SPT results and data in the form of load structures and field load tests and building analysis load. From the laboratory results and the subsequent building load, the calculation of the force field with the SAP 2000 program, calculate the maximum carrying capacity of the raft foundation under review, calculate the decline of the raft foundation and obtain the result of the structural requirements of the raft foundation. Based on the results of the analysis in this study found the carrying capacity of soil for raft foundation of 907.643 kN/m2. While the maximum voltage distribution at the base of the raft foundation due to the load and moment is 38.0696 kN/m2. Keywords: Raft Foundation, Bearing Capacity, Reinforcement

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