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All Journal Paduraksa : Jurnal Teknik Sipil Universitas Warmadewa Jurnal Ilmiah Telsinas Elektro, Sipil dan Teknik Informasi
Dewa Ayu Nyoman Ardi Utami
Universitas Pendidikan Nasional Denpasar
Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Engineering Environmental Science Industrial & Manufacturing Engineering

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ANALISIS KEAMANAN LERENG DAN DAYA DUKUNG PONDASI UNTUK DAERAH BERLERENG CURAM DI TEGALALANG, GIANYAR-BALI I Gusti Ngurah Putu Dharmayasa; Dewa Ayu Nyoman Ardi Utami
PADURAKSA: Jurnal Teknik Sipil Universitas Warmadewa Vol. 6 No. 2 (2017)
Publisher : Program Studi Teknik Sipil, Fakultas Teknik dan Perencanaan, Universitas Warmadewa

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (958.929 KB) | DOI: 10.22225/pd.6.2.482.108-122

Abstract

ABSTRACT The rapid development of tourism in Bali demands the availability of tourism facilities such as hotels, villas, inns and restaurants that can improve services to tourists. Due to the difficulty of finding land to build hotels and villas as well as to get a natural atmosphere, many villas and hotels are built on steep slopes and even on the edge of a cliff. One of the many villas and hotels planned to be built on steep slopes is a villa in Dukuh, Tegalalang, Gianyar, Bali. Before the tourism facilities are built it is necessary to analyze the safety of the slope and the soil bearing capacity in the location of the villa so it can be planned the depth and the size of the foundation that meet the safety requirements. Slope safety analysis has been done using SLOPE/W 2007 program and with manual calculation using Bishop method. For this analysis is required some data ie SPT data, CPT data, soil shear angle (ϕ), soil cohesion value (c), soil density (γ) and load on the building. The results of the analysis show that the location has a slope of 25 ° - 33 ° so that it is quite steep. The slope safety value (SF) obtained with the SLOPE / W is 1.00 in the location A-A and 1,431 in the B-B location, whereas the Bishop method is 0.91 in the location A-A and 1.10 in the location B-B, and it is quite vulnerable to the landslide. Analysis of foundation bearing capacity is planned with single bored pile with length of pile is 10 meters and using pile diameter 20 cm, 25 cm, 30 cm, 35 cm, 40 cm and 50 cm, is obtained the lowest allowable pile capacity based on data CPT and the highest allowable pile capacity based on laboratory data. Based on the structural analysis is obtained the maximum axial load (Pmax) on the foundation is 68456.67 kg and the pile diameter is 30 cm. The minimum axial load (Pmin) is 18085.26 kg and the pile diameter is 20 cm. Keywords: steep slope, Tegalalang, slope safety, bored pile
DESAIN PONDASI TELAPAK BERDASARKAN UJI CPT DI DAERAH KUTA, BALI I Gusti Ngurah Putu Dharmayasa; Dewa Ayu Nyoman Ardi Utami
PADURAKSA: Jurnal Teknik Sipil Universitas Warmadewa Vol. 7 No. 2 (2018)
Publisher : Program Studi Teknik Sipil, Fakultas Teknik dan Perencanaan, Universitas Warmadewa

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (618.275 KB) | DOI: 10.22225/pd.7.2.942.123-137

Abstract

Rapid exploitation of land in Bali, especially in the Kuta area due to the development of tourism, makes it difficult to obtain land and the price is expensive, so that the available land should be maximally used. The impact of maximum land use is the influence on the structure of the building to be built. The building structure component which affected is the foundation. Due to the very tight density of the building, it is necessary to consider the shallow foundation design that was widely used in the Kuta area to avoid structural failure, so that the designed buildings could stand safely. If the foundation receives an eccentric load, it will be very dangerous for the building if it does not fit between the load received and the size of the foundation being made. This would be disastrous in case of a construction failure due to a design error, so it was desirable to do research on the design of the shallow foundation with an eccentric load on the buildings located in the Kuta tourist area to obtain an adequate shallow foundation design based on the soil data and structural load will be built. To analyze the bearing capacity of the soil and the design of the foundation, it is necessary to provide data from land investigation in the field. Land investigation in the field was conducted with CPT. Based on CPT results obtained hard layer soil at a depth of 2 - 2.2 m. The shallow foundation was planned at a depth of 1.6 meters and the foot size of 1.5 m x 1.5 m with minimum allowable bearing capacity (qa) was 20,99 t/m2. The result of analysis of 2-storey building structure resulted axial load (P) was 25750.88 kg, moment about the X axis (Mx) was 2529.70 kg m and moment about the Y axis (My) was 2929.65 kg m. The dimensions of the footing are 1.5 m x 1.5 m and the thickness (t) was 580 mm. Minimum pressure on foundation (q min) was 6.238 t/m2 and the maximum pressure on foundation (q max) was 17.583 t/m2. For bending reinforcement was used 19 mm diameter reinforcing steel with a distance of 150 mm.
PERENCANAAN LANSKAP PERMUKIMAN BERBASIS MITIGASI BENCANA LONGSOR DI KECAMATAN KINTAMANI KABUPATEN BANGLI Dewa Ayu Nyoman Ardi Utami; I Made Asna
Jurnal Ilmiah Telsinas Vol 2 No 2 (2019)
Publisher : Universitas Pendidikan Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1756.123 KB)

Abstract

Bangli Regency is administratively located in Bali Province. The area of Bangli Regency is divided into 4 Subdistricts and 72 Villages: Susut, Bangli, Tembuku and Kintamani Subdistricts. Kintamani Subdistrict is one of the areas that has a high threat of landslides. Settlements that are still located in high risk landslide areas endanger occupants. Settlement landscape planning based on landslide mitigation needs to be done to prevent losses and casualties due to landslides. This study aims to identify legal aspects, physical, biophysical and social aspects in Kintamani Subdistrict, identify the threat of landslides in Kintamani District, and develop settlement landscape planning based on landslide mitigation in Kintamani District.The research method used refers to a modified planning process ranging from inventory, analysis, synthesis, and planning. The analysis carried out is land suitability analysis for settlement development with reference to the threat of landslide hazard. The mitigation concept is used for settlement planning which is further developed into spatial plans, activities, evacuation, facilities, facilities and infrastructure, circulation and vegetation plans.Settlement landscape planning based on landslide mitigation needs to be done to prevent the occurrence of losses and casualties if landslides also prevent the population from the threat of landslides through appropriate settlement zoning and not in the area of high-scale landslide threat.
Co-Authors I Gusti Ngurah Putu Dharmayasa I Made Asna