Home

 
 
 
Science technology FTP Server Webmail Addr. list Member
 
 
 

 

 

 

 

 

 

 

 

 

 

 

Một số thiết bị công nghệ tiên t

Some advanced softwares and equipment & technologies are now being used in Portcoast Consultant Corporation and the first ones to be applied to the survey, design and consultancy for transport works in Vietnam.
 

1. SOFTWARE®:
PORTCOAST has been using and has the licenses of using the modern international software as the following:

 

SAP2000

Integrated software for structural analysis and design. Provides linear and nonlinear, static and dynamic analysis and design of three-dimensional structures.

PLAXIS V8 is a finite element package intended for the two dimensional analysis of deformation and stability in geotechnical engineering.

PLAXIS FLOW is a finite element package intended for the two-dimensional and staeady-state analyses of saturated and unsaturated groundwater flow problems in geotechnical engineering and hydrology.

PLAXIS 3D FOUNDATION is a three-dimensional finite element program especially developed for the analysis of foundation structures, including off-shore foundations. It combines simple graphical input procedures, which allow the user to automatically generate complex finite element models, with advanced output facilities and robust calculation procedures. The program is designed such that a user can analysis complex constructions after only a few hours of training.

PLAXIS 3D TUNNEL is a finite element package that has been developed specifically for the analysis of deformation and stability in tunnel projects. The simple graphical input procedures enable a quick generation of complex finite element models, and the enhanced output facilities provide a detailed presentation of computational results. The calculation itself is fully automated and based on robust numerical procedures. This concept enables new users to work with the package after only a few hours of training.


GEO-STUDIO 2007

GeoStudio applications can be used to model almost any geotechnical problem including:

 

SLOPE/W is a software product that uses limit equilibrium theory to compute the factor of safety of earth and rock slopes. The comprehensive formulation of SLOPE/W makes it possible to easily analyze both simple and complex slope stability problems using a variety of methods to calculate the factor of safety. It has application in the analysis and design for geotechnical, civil, and mining engineering projects.

 

SEEP/W is a finite element software product that  be used to analyze the seepage problems and dissipation of excess pore-water pressures resulting from changes in stress conditions. The term seepage is used to describe all movement of water through soil regardless of the creation or source of the driving force or whether the flow is through saturated or unsaturated soils.

 

SIGMA/W is a finite element software product that can be used to perform stress and deformation analyses of earth structures. Its comprehensive formulation makes it possible to analyze both simple and highly complex problems.

 

TEMP/W is a finite element software product that can be used to model the thermal changes in the ground due to environmental changes, or due to the  construction of facilities, such as buildings or pipelines. The comprehensive formulation makes it possible to analyze both simple and highly complex geothermal problems, with or without temperatures that result in freezing or thawing of soil moisture.

 

QUAKE/W is a geotechnical finite element software product used for the dynamic analysis of earth structures subjected to earthquake shaking and other sudden impact loading such as, for example, dynamiting or pile driving.

 

CTRAN/W is a finite element software product that can be used to model the movement of contaminants through porous materials such as soil and rock. The comprehensive formulation of  CTRAN/W makes it possible to analyze problems varying from simple particle tracking in response to the movement of water, to complex processes involving diffusion, dispersion, adsorption, radioactive decay and density dependencies.

 

VADOSE/W is a finite element software product that determines the moisture and heat stress states at the ground surface with climate conditions present above the ground surface, so it can account for all of these physical processes based on first principle physics. For this reason, VADOSE/W can be used to design single or multi layered soil covers over mine waste and municipal landfill disposal sites; obtain climate controlled soil pore pressures on natural slopes or man  make covered slopes for use in stability analysis; determine infiltration and evaporation and plant transpiration from agricultural irrigation projects etc. It can be used wherever accurate surface boundary conditions are required.

 

AIR/W is a module that runs inside the SEEP/W program where it solves for air pressure and flow in response to pressure boundary conditions or changes in water pressure. If coupled with TEMP/W, then AIR/W also solves for thermally induced density dependent air movement and pressure changes.

In Geo-Studio system, result from one model can be used in other model.

 

Professional DHI Software tools made by Danish Hydraulic Institute compose as the following:

·   MIKE 11 Enterprise includes HD-Hydrodynamics, RR–Rainfall-Runoff, SO-Structure Operation, DB-Dam Break and AD-Advection-Dispersion. MIKE 11 is the industry standard for simulating flow, water quality and sediment transport in estuaries, rivers, irrigation canals and other surface water bodies in many regions. It provides a wealth of capabilities that span the entire range of applications from basic routing to complex, fully dynamic modeling and complete facilities for fast and convenient definition of dam geometry, breach development in time and space as well as failure mode.

 

·   MIKE 21 (HD, AD, SA, MT, PT, ST, EMS, BW, NSW, SW, ECOLAB, MARINE PP, MIKE ANIMATOR) is a professional engineering software package for the simulation of flows, waves, sediments and ecology in rivers, lakes, estuaries, bays, coastal areas and seas. MIKE 21 provides a complete and effective design environment for engineering, coastal management and planning applications.

 

·   MIKE 3 (PP, HD, MT) is a professional engineering software package for 3D free-surface flows. It is applicable to simulations of flows, cohesive sediments, water quality and ecology in rivers, lakes, estuaries, bays, coastal areas and seas. MIKE 3 forms a unique professional software tool for consultancy services related to design, operation and maintenance tasks within the aquatic environment. MIKE 3 is the result of 20 years of continuous development and is tuned through the experience gained from hundreds of applications worldwide.

 

·   LITPACK (PP, LITSTP, LITDRIFT, LITLINE, LITPROF, LITTREN)  has many powerful functions such as: Impact assessment of coastal works - Optimize beach redevelopment schemes - Design and evaluation of coastal protection - Estimate channel backfilling - Conduct morphological baseline studies.

 

SHIPMA, fast-time simulation proram for ship manoeuvring.
developed by MARIN's Nautical Centre MSCN and WL | Delft Hydraulics (Netherlands).

SHIPMA is a program for simulating the manoeuvring behaviour of ships, taking into account the influences of:
- The ship's manoeuvring characteristics,
- The kind of manoeuvre and desired track,
- Rudder and engine actions,
- Tug assistance,
- Wind, waves and currents,
- Shallow water and
- Bank suction.

Rudder, engine and tug(s) are controlled by a combination of:
- A track keeping autopilot and tug controller,
- Input data as defined by the user.

The autopilot responds to deviations from the desired track and course angle. In the case of curved tracks and changes in the current-pattern, the autopilot will anticipate on these changes, while taking into account a user-defined "anticipation distance".

SHIPMA computes the track and course angles of the ship, the required actions for the rudder, the engine and the tugs, on time-step basis during the manoeuvre. All forces acting on the ship and the speeds, rotations and accelerations of the ship will be determined as well, and stored in output files. In addition, the actual water depths, current velocities, wind speeds, wave heights, tug orders, tug forces and so on, are calculated.

 

MICROSTATION sorfware is the foundation in the designed field. It supports all formatting CAD standard in the world. Microstation is the most powerful, most accessible and most interoperable CAD platform for the design, construction and operation of the world’s infrastructure; combines both 2D and 3D documents; treats pictures in the map local.   With an integrated suite of easy to use and versatile capabilities, MicroStation helps teams improve the way they design, model, visualize, document, and map projects of all shapes and sizes.

 

TEDDs

TEDDS is the ultimate productivity tool for day-to-day repetitive calculations. TEDDS replaces hand written calculations and is a standard tool for thousands of engineers around the world.

Specialized software for PDA (Pile Driving Analyzer) is used to analyze capability of Dynamic Pier bearing and make a static loading model GRL Weap, CAPWAP. Specialized software CPT Pro, SC-DAC is used for CPTU. Software for surveying onshore and offshore with technology RTK (Real Time Kinematic) to design and check work of dredging HYPACK®MAX with high accuracy and data automatic processing. Software for survey and design CIVILCAD; software for measuring and mapping TOPSURVEY. Software for GIS technology ArcGIS and remote sensing ENVI of ESRI.
 

 

2.  EQUIPMENT:

 PDA (Pile Driving Analyzer), Modern bathymetric & hydraulic survey equipment include tide/ current gauge of latest generation (Sontek Triton Wave Gauge) which could determine the wave frequency and directional spectrum, tidal WSL with high accuracy; the complex equipment OBS-5 which can measure the temperature, pressure, salinity, turbidity and concentrated sediment, the meteorological station AWS-2, the wind velocity and direction station EL,... To serve for survey work, PORTCOAST Consultant has invested the modern equipment for bathymetric survey such as DGPS Dual Frequency and RTK technology (Real Time Kinematic), Echotrac MKIII echo sounder dual frequency and STRATA BOX Marine Geophysical Instrument, Electronic Total Station 6001C, Automatic Leveling Equipment (Model AT-G3)

SONTEK Triton & Argonaut XR - Directional wave, Tide and Current Recorder

 

Nortek AWAC is a revolutionary instrument that gives you both a current profiler and a wave directional system in one unit. You can measure the current speed and direction in 1-m thick layers from the bottom to the surface and you can measure long waves, storm waves, short wind waves, or transient waves generated by local ship traffic.

Odom ES3-M is the echo sonar multibeam which integrates the best features of products from two industry leaders in one compact package. In the ES3-M Odom Hydrographic's paradigm changing ES3 multibeam sonar is united with Teledyne TSS's survey proven DMS line of motion sensors. The two companies technical cooperation has resulted in a system with virtually zero fixed offsets(rollandpitch) between the two central components of a Hydrographic Multibeam System. Eliminating offsets means quicker installations, faster calibrations and reduced setup errors, helping you maximize productivity.
Range resolution: 2cm in 100m water depth.

Odom Digibar Pro™ is the most cost-efficient and accurate means of determining water column sound velocities. It quickly calibrates acoustic systems regardless of sea state or current, and is faster and safer than the traditional bar check method. Digibar Pro™ uses “sing-around” technology, which automatically compensates for all factors influencing sound velocity, including salinity, depth and temperature.
Resolution: 0.1m/sec
Accuracy: +(-) 0.3m/sec

EdgeTech 4200-MP Side Scan Sonar System provides a unique advantage over conventional dual frequency side scan systems by combining EdgeTech’s Full Spectrum and Multi-Pulse technologies into one unit. Providing hight resolution images of seabed in oceans, lakes and rivers. The 4200-MP comes available with a choice of two dual simultaneous frequency sets; either 100/400 kHz or 300/600 kHz, and offers two software selectable modes of operation:
• High Definition Mode (HDM) – conventional dual simultaneous frequency operation with extra long array for superior resolution; excellent tool for Mine Countermeasures (MCM).
• High Speed Mode (HSM) – Multi-Pulse operation on either selected frequency for speeds up to 10 knots, while meeting NOAA and IHO-44 requirements for Hydrographic Survey for "hits on target" compared to conventional systems at 4 knots. This is an additional feature for high-speed navy patrol vessels.
Resolution across track: 15cm with 600khz frequency


EdgeTech 3200-XS Sub-bottom Profiling System is a high-resolution wideband Frequency Modulated (FM) sub-bottom profiler utilizing EdgeTech’s proprietary Full Spectrum CHIRP technology. The system transmits a FM pulse that is linearly swept over a Full Spectrum frequency. The acoustic return received at the hydrophones is passed through a pulse compression filter, generating high-resolution images of the sub-bottom stratigraphy in oceans, lakes, and rivers.
Vertical resolution: 8-20cm
Penetration: 30m in coarse and calcareous sand
                   250m in soft clay

Marine Magnetics is the only marine magnetometer company in the world that can produce stable Overhauser sensors that do not degrade with time
SeaSPY was designed to pick up where traditional marine magnetometers left off, exhibiting high reliability and helping save time, money, and energy by taking the realities of working in the field into account.
- High reliabilty due to The SeaSPY towfish made of  ¼” super strong fiberglass
- Better Data no matter where you are or in which direction you are surveying
- Highest Absolute Accuracy to 0.1nT
- Proven Sensitivity Specs to 0.01Nt/Hz
- Counter sensitivity to 0.001nT
- Stable time measurement with the 1pp up-to accuracy due to the clock used in the SeaSPY electronics module.
- Maintenance Free Sensors ensuring data quality even after 10 years of use.
Ease of use due to ultra low power consumption and no temperature effect on accuracy.

The DMS range of motion sensors is designed specifically for the motion measurement needs of the marine industry.
The DMS provides accurate motion measurement in all sea conditions.Incorporating an enhanced external velocity and heading aiding algorithm for improved accuracy during dynamic manoeuvres, the solid state angular rate sensors offer reliability in the highest performing vertical reference unit.
The DMS is rated to 3000m as standard with 6000m available on request. The sensor can be supplied in various configurations for integration with towed vehicles and other applications. As with all TSS system, the DMS is certified to meet all current and anticipated European legislation for electromagnetic compatibility and electronic emissions.
Dynamic accuracy:
- Heave: 5cm
- Roll-pitch: 0.05o

   


DGPS Dual Frequency

 

 

Modern survey equipment system

 

 

 


STRATABOX - Marine Geophysical Instrument

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 
 
 
Copyright © 2004 Portcoast Corp. All rights reserved