PT. BIMA SAKTI GEOTAMA · about us BSG Bima Sakti Geotama (BSG) is dedicated to solving wide range of complex geotechnical challenges in Indonesia. Established in Bandung (2002),

company profilePT. BIMA SAKTI GEOTAMA

SOIL MECHANICS TESTING MADE EASY

Established 1941

Masters of Technology

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BSG

about usBSG

Bima Sakti Geotama (BSG) is dedicated to solving wide range of complex geotechnical challenges in Indonesia.

Established in Bandung (2002), Bima Sakti Geotama is a full – service geotechnical engineering company, related soil/rock insitu testing and laboratory, geotechnical instrumentation, and geotechnical engineering consultant.

Since 2013, BSG has get licenses by law be in form of a limited liability company (PT. Bima Sakti Geotama or PT. BSG) and member of the national association of Indonesian consultant (INKINDO) to be a professional geotechnical and engineering company which provide the most accurate interpretation, geotechnical recommendation of subsurface condition and problem solving against geotechnical problem that included and not limited to slope stability, deep/shallow foundation, Soft Soil Engineering, Excavation, Earthquake risk, tunnel, Dam and seepage problem.

In activity, BSG has been supported by Engineers and technicians of trained and highly experienced who get certified by Indonesian Society for Geotechnical Engineering (ISGE – HATTI). They must doing the research, development, and trainee to improve their knowledge so that ensure quality service and accuration result.

Years experience

Project completed

satisfied client

10+

100+

100+

. . . Bima Sakti Geotama is a full – service geotechnical engineering company, related soil/rock insitu testing and laboratory, geotechnical instrumentation, and geotechnical engineering consultant.

pt. bima sakti geotama

¡Geotechnical Engineering Investigation-Soil/Rock Core Drilling and Sampling-Standard Penetration Test (SPT)-Cone Penetration Test (CPT)-Soil/Rock Mechanic Laboratory-Insitu Permeability Test (Packer Test and Constant Head/Falling Head)

¡Geotechnical Instrumentation and Monitoring-Digital Inclinometer-Vibrating Wire Piezometer

¡Foundation Analysis and Design¡Retaining Wall/Sheet Pile Design and Analysis¡Borrow Pit Survey¡Forensic Geotechnical Engineering Studies¡Slope Stability Analysis and Design of Remedial Solution¡Stability of Dam and Seepage Analysis¡Downhole Seismic Analysis¡Seismic Hazard Analysis and Site Specific Response Analysis

BSGourservices

facilities& equipment

BSG

Type : Cone Penetration Test (CPT)

Description :

Quantity : 4 unit

Capacity : 2.5 tonf

facilities & equipment

Cone Penetration test (cpt)

The standardized cone – penetrometer test (CPT) involves pushing a o3.58 cm diameter 60 cone through the underlying ground at a rate 1-2

cm/s. the CPT can be very effective in site characterization, especially

site with discrete stratigraphic horizons or discontinuous lenses. The

methodology was adopted by ASTM D 3441. the CPT is a valuable

method of assessing subsurface stratigraphy associated with soft

materials, discontinous lenses, organic materials (peats), potentially

liquefiable materials (silt and sands), and landslides. CPT can be easily and

quickly mobilize to site and relatively quick simple and economical. The

main disadvantages are not obtaining a soil sample for viasual/laboratory

inspection, and sometimes serveral limited depth capanility.

BSG

Type :

Description :


CPTU

CPTU

The piezecone test (CPTu) includes the measurement of tip resistance, side friction and excess dynamic pore water pressure. These pore water pressures are developed during the steady, slow penetration of the cone into the soil.

Application of CPTu tests may not be possible when coarse and very coarse fraction (sand-gravel mix, gravel, rock waste, clayey weathering waste) are occurring in the subsoil. CPTu tests should always be supplemented by research drillings, soil sampling and laboratory tests.

BSG

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Description :


Drilling machinesPT. BSG have 5 unit imported drilling machines for soil/rock drilling and sampling with maximum 100 m depth. YBM YSO 01, YBM YSO 05, Toho, Yamaguchi in good performance will be running for service our client. Drilling machines use for obtaining a soil sample for visual/laboratory inspection and supporting Standard Penetration Test (SPT) or other test.

Drilling machines

BSG

Type :

Description :


Downhole Seismic Testing

Downhole Seismic Testing

Downhole seismic testing is one field test that is commonly used

to determine compression-wave (P) and shearwave (S) velocity

profiles in geotechnical earthquake engineering investigations.

These profiles are required input in evaluations of the responses

to earthquake shaking of geotechnical sites and structures at

these sites. This technique measures vertical changes in seismic

velocity by placing a source at the top of a borehole and

measuring travel-times at multiple intervals in the borehole,

usually with a 3-component geophone.

The preferred method for preparing a borehole for downhole

testing incorporates one borehole. A dry test hole is preferred to

avoid signal noise caused by waves transmitted through the

water column in a water-filled test hole. The methodology was

adopted from ASTM D4700. Common applications include

Bridge/dam foundation analysis, Insitu materials testing, Soil and

rock mechanics, Earthquake engineering, Liquefaction analysis.

BSG

Type :

Description :


Dilatometer (DMT)

Dilatometer (DMT)

The Marchetti dilatometer (DMT) consists of a flat steel blade having a thin, expandable, circular steel membrane mounted on its surface. The blade is connected to the control-measurement unit by pneumatic wire used to transfer gas pressure exerted on the membrane. The test involves pressing of the blade which membrane deforms under the influence of the acting gas pressure in the ground.Dilatometer can be used to identify the type and state of the soil, determine the geological profile and history of the stress condition, estimate values of the geotechnical parameters (undrained shear strength, coefficient of the at-rest earth pressure o f the non-cohes ive and cohes ive so i l s , overconsolidation stress, deformation modules). Based on the in situ measurements of the values of pressure and the estimated values of the effective vertical stress and pore pressure, the following dilatometric parameters of the subsoil are determined (at the depth of the measurement)

BSG

Type :

Description :


PDA TEST

PDA TEST

Pile Driving Analyzer (PDA) is one type of dynamic test using the wave analysis method which can be performed during or after pile installation using conventional pile driving equipment. This test can be applied to driven steel, driven timber and even concrete piles (eg. pre-stressed driven concrete piles, drilled shafts, auger cast piles). PDA equipment calculates the velocity and force signals obtained from accelerometers and strain transducers attached to the pile during driving. This data is analyzed using CAPWAP software to calculate the pile capacity. The information that PDA testing can provide includes: verification of pile capacity at the time of testing, data for developing termination criteria for design loads, assessment of energy transfer and driving efficiency, measurement of stress levels induced on the pile during driving, and assessment of pile integrity and possible damage.The ideal hammer weight / mass for testing PDA test is 1% - 2% of the pile foundation capacity required to achieve. The number of pile foundations used with PDA test is generally as much as 1% of the number of pile foundation points in a single project. (SNI Geotechnical Engineering 8460 – 2017)

BSG

Type :

Description :


Monitoring instrumentation

Monitoring instrumentation

Instrumentation of geotechnical structure in the field has been beneficial in evaluating the movements and failure in the structure under real condition. As well as assessing the performance of new materials and methods used in the design and construction of geostructures.

BSG

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Description :


SoIL MECHANIC LABORATORY

SoIL MECHANIC LABORATORY

Instrumentation of geotechnical structure in the field has been beneficial in evaluating the movements and failure in the structure under real condition. As well as assessing the performance of new materials and methods used in the design and construction of geostructures.

BSG

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Description :


For effectively, quickly, and accurately calculation problem, PT. BSG have a lot of knowledge for running some Geotechnical Engineering Software. Based on experiences and some research PT. BSG capable to model some phenomena of soil/rock behavior to solve a problem.

Software for numerical modelling

Software for numerical modelling

selectedrecent projects


Project Location Client Dinas Pekerjaan Umum Provinsi DKI Jakarta

: : :

Geotechnical Assessment for Sheetpile Failure due to Excavation at Mookervart River

Daan Mogot, West Jakarta

Project Description :PT. BSG has done Soil investigation, determined geotechnical properties and geotechnical forensic for sheetpile failure. The problems are soft soil layer under ground surface which is not controlled by depth of excavation and length of penetration sheetpile.PT. BSG was done back analysis for simulated mechanism of failure and find the solution for this case.

BSGselected recent projects

BSG BSGBSG

Project Location Client

: : :


BSG

Project Description :PT. BSG has done seven point land drilling, Standart Penetration Test, Thirty Five point Dutch Cone Penetration Test, Soil Mechanic Laboratory Testing and gave technical recommendation for some infrastructure (brige, acsess road, office building, and machine foundation)

: :

Sarulla, Tarutung, North Sumatera

:

Hyundai Engineering

Geotechnical Investigation For Geothermal Project, Sarulla, Kab. Tarutung, North Sumatera


: : :


BSG

: :

:

Project Description :PT. BSG has done Geotechnical Investigation and Soil/Rock Mechanic Laboratory Test for fund rock behavior of Marl/Napal which was predicted cause some failure on project location

Geotechnical Investigation and Assessment for Landslide at Spillway Waduk Pacal

Waduk Pacal, Kab. Bojonegoro, East Java

Komisi Bendungan Indonesia Associated with PT. Aditya Engineering Consultant


: : :


BSG

: :

:

Project Description :PT. BSG has done Geotechnical Investigation and Soil/Rock Mechanic Laboratory Test. For this case effective, safety, and reduce cost of construction are challenges. Analysis soft soil behavior and determining type of foundation were done here.

Geotechnical Investigation and Assessment for Oil Sludge Pond RU VI Balongan

Balongan, Indramayu

RU VI PT. Pertamina Persero

§ Geotechnical Investigation for Study of Leuwikeris Dam, associated by PT. Aditya Engineering Consultant.

§ Geotechnical Investigation and Assessment for Jakarta Urgent Flood Mitigation Project, PT. Brantas Abipraya.

§ Geotechnical Investigation for Urban Flood Control for South Sumatera and West Sumatera, JICA and Yachiyo Engineering Consultant, Japan.

§ Geotechnical Assessment and Geotechnical Instrumentation Monitoring for Soil Failure at Citra Grand Garden Estate.

§ Geotechnical Assessment for letung anambas Port, Associated by PT. Raya Surverindo

BSG

Others selected recent projects

§ Seismic Hazard Analysis and Earthquake Risk for Batang Toru Dam, South Tapanuli, North Sumatera. Darmawangsa Group.

§ Seismic Hazard Analysis and Soil Dynamic Analysis for Matenggeng Rockfill Dam, Kab. Ciamis, West Java, PT. Jasapatria Gunatama.

§ Infiltration Study of Salt Pond at Nagekeo, Flores. PT. Cheetham Garam Indonesia – Australia.

BSG

Others selected recent projects

research

• Riza., Muhammad and Irsyam., Masyhur. (2010). Proposed Seismic Hazard Map and Ground Motion on Bedrock for Several Major Cities in Celebes Based on Seismic Hazard Analysis Result Using 3-D Seismic Source.

• Riza., Muhammad and Hutapea., Bigman. (2010). Finite Element Model of Bamboo Cerucuk Matras on Case Study for Embankment on Soft Soil.

• Riza., Muhammad. (2011). Soil Deformation Model due to Embankment Loading on Case Study Building Failure at Citra Grand Cibubur Estate.

• Riza., Muhammad, Farid., W. (2012). Sensitivity Analysis of Deep Foundation Bearing Capacity.

• Riza., Muhammad and Ariyanda., Fioiliza. (2013), Reliability Mohr Coloumb Model and Hardening Soil Model on Case Study Longstorage Excavation Failure Using Sheetpile Reinforcement.

• Riza., Muhammad. (2013). Characteristic Study Parameter of Marl Material on Case Landslide at Waduk Pacal, Bojonegoro.

• Riza., Muhammad and Herdiyana., Cepi. (2014). Effect Selected Input Ground Motion against Non Linear Dynamic Analysis of Rockfill Dam.

BSG

BSG

Jalan Pasir Impun No. 10, Bandung – Indonesia

+62 22 877 896 75

[email protected]

§Muhammad Riza H., ST., MT., Aff. M ASCEJalan Pasir Impun No. 10, Bandung – Indonesia

+62 813 2015 [email protected]

BSGpt. bima sakti geotama

contacts

BSG

Work experience of pt. bima sakti geotama

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BSG


BSG


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BSG



Jalan Pasir Impun No. 10, Bandung – Indonesia

+62 22 877 896 75

[email protected]

PT. BIMA SAKTI GEOTAMA · about us BSG Bima Sakti Geotama (BSG) is dedicated to solving wide range of complex geotechnical challenges in Indonesia. Established in Bandung (2002),

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