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　after more than ten years of continuous innovation and development, combined with the specialty needs of survey and design of highway, urban road, railway and so on as well as deep understanding of the road engineering profession, hintcad software independently developed integrated series of proprietary cad technology by utilizing the most sophisticated software technology, cad redevelopment technology, mathematical theories and models, 3d graphic and image technology and so on; and it is one the leading road design software in the world. the products have many practical proprietary technologies such as visualized cad design, applying 3d technology to make the design more intelligent and so on. the promotion and application of above technologies greatly promote the overall efficiency of survey and design, improve the quality and accuracy of design achievements, and affect the engineering survey and design method and process changes to some extent. at present, hintcad series software p

  hintcad high-speed dtm is the core technology of engineering dtm construction and application based on irregular triangulated network theory, developed by using the computer software technology, mathematical models and computer memory allocation mechanism. whose outstanding advantage is supporting ability of massive data, most rapidly tin processing so far, and high precision has been tested by many large projects. the technology is a significant breakthrough in dtm processing technology in chinese engineering cad field, and is one of the core supporting technologies for different types of 3d design features of hintcad as well. 

  hintcad high-speed dtm technology breakthroughs the bottleneck of engineering dtm application in the amount of data and accuracy, we can utilize dtm data from different sources to complete design task at different stages in road survey and design, having a multiplier effect for improving the design efficiency.

    dtm automatic segmentation and extraction technology is developed for real-time acquisition and application of massive data within long, big strip corridor of highway, which firstly segment then store the dtm within the given corridor section, then automatically extract terrain data according to route optimized region, and thus achieve the real-time acquisition and application of ground elevation. this technology is key support for 3d interactive optimized technology.

the route 3d interactive optimized technology is based on the dtm automatic segmentation and extraction technology, developed by using computer high-speed network data transfer technology and so on, achieving real-time association and interaction between route horizontal plan, profile and cross section and 3d road model. this technology has changed the previous conventional process of road design procedure (which follows design steps of road project starting with horizontal, then longitudinal and finish with cross section). the technology is a new definition of the full 3d design method of highway geometric design, and is especially applicable for accurate optimized design tasks of route location under mountainous area and other complex topographic conditions.

   

  this technology and method can be used in complex terrain condition, and it is based on the design theory and practice of curved route, developed by using cad secondary development technology, which performs route alignment by dragging the graphics control points, the alignment process is like the process of placing a scalable continuous rope, whose flexibility and convenience make professional and technical personnel amazing. the technology and method is a full new interpretation of the curve alignment. in addition, intelligent route layout technology also includes the function of automatic threading and fitting and so on of horizontal, longitudinal alignment, which is suitable for highway reconstruction and expansion.

the v85 calculation and analysis technology is based on the concept of operating speed and the latest domestic research results (application model and method of operating speed), by reference to safety assessment guide, the program automatically divide the route into different section based on its geometric design parameters, selects and applies the calculation model, automatically calculates operating speed v85 changes of nodes at each road section, gives warning to the road section of probable abrupt speed changes, provides basis for highway safety analysis and evaluation. at present, the technology is authoritative software technology in the field of our country’s highway v85 calculation and analysis of operating speed, and is also a typical case of transformation of the latest scientific research achievements into practical application.

    geometric design and drafting technology is developed to meet the demand of different highway design standards, specifications, design habits, methods, different language for graphic and reports output and so on of international projects. the technology performs cross sectional design based on customized standard cross section components, and outputs drawings based on self-customized drafting template. follow suit is a vivid description for template design technology and method. at present, the template design technology is mainly used in cross section design, and template drafting technology is suitable for drawing result output of horizontal, profile and cross section and so on. intelligent template design technology breakthroughs the barriers of implementation posed by language environment, different countries and regions, specifications, standards and design habits and so on of international projects, making the hintcad 3d road traffic cad solutions are fully applicable to reconnaissance and design tasks of many international projects. hintcad intelligent template design technology, combined with domestic habits, already launched for domestic users after some customization and improvement.

    the road 3d simulation technology is mainly developed for the professional characteristics of highway projects by utilizing computer virtual reality and simulation technology, this technology directly uses basic data and topographic data of road geometric design, generate accurate 3d model of terrain, road, bridge, tunnel and so on in one click, users also can draped the satellite images over the terrain model to make better environments, creating highway virtual reality model, achieving simulation (can output 3d animation) such as driving, flying, walking and so on and can check sight distance checking of at any road section (based on the 3d model)、checking calculation of operating speed and so on providing method and scientific basis for overall program display of highway project, safety evaluation, environmental evaluation and so on.

    the 3d geological layer modeling technology is based on geological survey and exploration results to construct full 3d geology strata model software technology along highway corridor. the technology used the using mathematical inference model and computer graphics image technology for geological strata modeling. it displays the visualized geological layer model and provides geological strata data and basis for the design of cross section of roadbed, bridge, tunnel and so on. the technology has changed the previous way that the result information of engineering geological strata was more dependent on geological professional manual empirical inference based on limited survey and exploration data.

    the retaining wall dynamic layout software technology is based on the route geometric design (including roadbed cross section, side slope and so on) information, and database technology, the main breakthrough of the technology is the achievement of dynamic dragging and dropping layout and design of retaining wall on the roadbed profile, moreover, the importing and managing custom retaining wall database allows users to share and to use the database gotten by other users and previous projects. the roadbed protection engineering staff may be freed from simple drafting and masonry quantity statistical work and so on by the help of this technology.

    composite visualized roadbed mass hauling technology is developed by the use of c and graphics technology, which firstly achieves the visualized mass hauling function of along linear highway project, the haul process is completed by mouse dragging and dropping just like playing an easy computer games. the haul process can fully consider different types of earthwork composition, and can achieve separate haul and statistics of all of six soil/rock types; the technology is suitable for composite earthwork utilization and haul of different types of linear engineering project such as water/municipal/railway and so on.

    full 3d visualized dynamic design software of tunnel portal is developed on the basis of dtm technology, included in hintcad tunnel cad system, which solves the problem of accurate and reasonable layout of tunnel portal, dynamically and visualized displaying the 3d tunnel portal model and the coordination of the portal with the surrounding terrain conditions, supports users to adjust portal location by different modes. tunnel cad system can complete horizontal and longitudinal layout of tunnel, dynamically segment and complete lining design automatically according to the geological conditions of surrounding rock, and automatically gather statistics for total engineering quantity of tunnel.