CHAPTER 01.
Project Settings

01.
Civil 3D Template Settings

CHAPTER 02.
Creating status and plans using Infraworks

01.
Infraworks interface
02.
Using Model Builder
03.
Infraworks project start
04.
Infraworks Master Plan Creation

CHAPTER 03.
Civil 3D Surface

01. Introduction to CIVIL 3D Surface
02.
Surface preparation
03.
Surface utilization

CHAPTER 04.
Ground suspension

01.
site
02.
Stop writing

CHAPTER 05.
Linear and longitudinal drawing

01.
Linear writing method
02.
How to write a terminal

CHAPTER 06.
Standard Cross Section and Corridor Creation

01.
Create a standard cross-section (assembly)
02.
Creating a Corridor
03.
Creating an intersection corridor
04.
Corridor Solid Extraction

Background and Necessity of Civil Engineering BIM

The construction industry has long been based on manual labor and two-dimensional drawings.
From the 1970s to the 1990s, design drawings were created using drafting tables and T-squares, but starting in the mid-1990s, digital drawings, CAD, and Excel-based automated programs were introduced, significantly improving the efficiency and accuracy of design.
This digitalization trend has been rapidly shifting towards an innovative paradigm called Building Information Modeling (BIM) since the 2000s. While BIM originated in the construction industry, it has recently become an essential technology across civil infrastructure, including roads, railways, bridges, tunnels, and dams.
In particular, as domestic and international ordering agencies mandate or actively encourage the adoption of BIM, the use of BIM in the civil engineering field is recognized as a necessity rather than an option.
This is because as projects grow in complexity and scale, collaboration and information integration among various stakeholders become increasingly important.

Definition and Characteristics of Civil Engineering BIM

BIM is defined as “a model that digitally represents the physical and functional characteristics of a facility.”
Several organizations, including the Ministry of Land, Infrastructure and Transport, the U.S. General Services Administration (GSA), and the National Institute of Standards and Technology (NIBS), describe BIM as digital models and work processes that provide reliable information throughout the lifecycle of a facility.
In other words, BIM is an information platform that goes beyond simple 3D modeling and integrates and manages data throughout the entire process, including design, construction, operation, and maintenance.

Civil BIM has the following characteristics:

· 3D model-based design: Compared to existing 2D drawings, it provides superior spatial understanding and visualization, and allows for interference checks for complex structures and the identification of design errors in advance.
· Strengthened information integration and collaboration: By integrating information from various fields, including structure, civil engineering, facilities, and electricity, into a single model, collaboration between departments is promoted and design changes and constructability reviews can be quickly performed.
· Lifecycle Management: Maximize maintenance efficiency and cost savings by accumulating and utilizing data across the entire lifecycle of a facility, from design and construction to maintenance and dismantling.

Key Effects and Application Cases of Civil Engineering BIM

Civil BIM provides the following benefits:

· Decision Support: Supports quick and accurate decision-making during the planning phase based on 3D models and attribute information.
· Preventing design and construction errors: Minimize re-construction and cost waste through interference review of complex structures and constructability review.
· Process and cost management: Expanded to 4D (process), 5D (cost), etc., to systematically manage construction schedules and budgets.
· Maintenance efficiency: Facility property information is linked to the maintenance system, significantly improving the efficiency of asset management and maintenance.

In fact, BIM has been applied to various civil engineering projects, including the Honam High-Speed ​​Railway, the Busan Subway, and large bridges and tunnels, both domestically and internationally, achieving high results in design quality, constructability, safety, and process management.
For example, at the Honam High-Speed ​​Railway site, major structures and terrain were modeled in 3D, and advanced techniques such as virtual reality-based safety management and equipment operation management were introduced, leading to innovation in site management.

〈Single Design BIM Process〉

Simply design is the process of planning and developing a specific area to be used for residential, commercial, industrial, etc.
Typically, it proceeds in four steps:

· Establishment of basic plan: Analyze the current status of the target site and establish a land use plan.
This step takes into account terrain, soil, climate, infrastructure, etc.
· Design concept: Create a detailed design plan based on the basic plan.
Includes building layout, road network, parks and green spaces.
· Detailed Design: We carry out detailed architectural design and engineering design.
At this stage, the structure, electrical, mechanical, and drainage systems of the building are designed in detail.
· Construction and Management: We carry out actual construction based on the design and resolve any problems that may arise during construction.
Additionally, a maintenance plan is established after completion.

The design process is a collaborative effort between various experts, requiring thorough planning and review at each stage.