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Obtained Inno-Biz Certification Designated as a Venture Business Authorized as a Research Institute Obtained ISO9001 / ISO14001 Certification Obtained Certificate Quality Innovation Excellent Company Obtained A Certificate of Business Transparency Awarded in 2002/2003 Korea Patented Technology Contest Selected as Good Technology of Small and Medium Enterprise Innovation Contest Tel: Fax:

INTRODUCTION Business Area ConstructionEngineering serviceManufacture & Sales Underground passage tunnel Mending and replacement for old and timeworn sewer pipe Non-Excavation Technology - Hydraulic pipe jacking -Semi-shield, HDD, micro-shield /micro tunnelling - Pipe-roof method - KY method series (our patent technology) Pipeline construction Civil foundation construction Boring & Grouting Underground water development Geotechnology/Subsoil Information - Engineering/Geotechnical consulting - Underground water effect survey - Ground surface& Subsurface geological survey Geophysical prospecting Equipment and a device related with patent technology Remote survey system of a rock slope

INTRODUCTION History Established a Corporation Kunyang C&E Co., Ltd Selected as good technology in 2002 Korea patent technology contest and awarded promotion prize Selected as good technology of 4 th small and medium enterprises innovation contest Authorized as a research institute attached to enterprises (Korea industrial technology association) Obtained ISO9001, ISO14001 certification (ukas isoall, inc/ das international isoall, lnc) Designated as a venture business (small and medium business administration) Selected as good technology and awarded a bronze medal In 2003 Korea patent technology contest Obtained certificate quality innovation excellent company (Korea quality certification & Korea management innovation institute) Obtained inno-biz certification (small & medium business administration) Selected as a ‘promising small & medium company’ (Daejon metro city in Korea)

INTRODUCTION Patent

INTRODUCTION Patent

INTRODUCTION Certification

CONTENTS 1. The Method of Plasma Anchor in the Construction 2. The Methods of Earth Grouting for Dam up a Groundwater used by the Technics of Plasma Glassification 3. The Apparatus and Method of Earth Grouting Using Compressed Air System for Intermittent Vibrated Wave Production 5. Underway Construction Using Simple Freezing Assembly Box Propulsion 1. Sectioned drawing for soft subsoil propulsion 4. The Methods of Trenchless Underway Construction Using Pre-Cast Assembly Concrete Box

CONTENTS 6. Underground Passage Tunnel construction with Arched Triangular Pipe-roof Method (ATEP Method) and its Device 7. Simple Freezing Pipe Jacking Method and its Device 8. Changeable Boring Machine Propulsion Method(CBM Propulsion Method) and its Device 10. Remote Bedrock Discontinuity Surveying System 2. Sectioned drawing for aquifer subsoil propulsion 9. T.C.M. Tunnel Construction 3. Sectioned drawing for unsafe subsoil propulsion 4. Expectative Effect

Patented Technologies [PATENT NO : ] The Method of Civil Foundation Construction Applying Plasma Technology AAs the method to install more reinforced permanent anchor, this method uses a plasma torch and plasma melting-aid materials, not the existing grouting materials to fix a basic slab anchor and an anchor to prevent uplift pressure and buoyance and to fix anchor on the slope, retaining wall and excavated part. And, this method can be applied to make bedsoil lithification by using technology of plasma melting & water cooling system. 1.

Patented Technologies The Method of Civil Foundation Construction Applying Plasma Technology Sectional View

Patented Technologies [PATENT NO : ] The Methods of Earth Grouting for Dam up a Groundwater used by the Technics of Plasma Glassification  This method is a water-cut off earth grouting method using plasma glassification developed for cutting off water and reinforcement by making the ground stratum ceramic and glass crystallization because of using glassified areas spread with raw materials of glass. It is good for the repair of a reservoir and a dyke. 2.

Patented Technologies [PATENT NO : ] The Apparatus and Method of Earth Grouting Using Compressed Air System for Intermittent Vibrated Wave Production This is a new injection method to inject the grouting solution of high concentrations and high cohesion into the minute cracks of soil layers or bedrock by adding pressure using intermittent compressed air in grouting cap with an air compressor and grouting pump. 3.

Patented Technologies [PATENT NO : ] The Methods of Trenchless Underway Construction Using Pre-Cast Assembly Concrete Box  By arranging pipe-roof as an arched-type or an open-boxed type, the primary purpose is accomplished. And then, it propels and installs built-up structures using an arched- type or a box-typed of assembly concrete segment with earth materials excavation. It could reduce the cost and terms of construction. 4.

Patented Technologies [PATENT NO : ] Underway Construction used by Simple Freezing Assembly Box Propulsion  Until now, Front Jacking Propulsion, TRM and NTR methods developed in developed countries have mainly been used as methods for completion of trenchless underway construction structures. But their many uppermost limits in the aquifer and soft subsoils,it has been developed to solve these matters and it is for aquifer subsoil, soft subsoil, subsoil which stability is not secured, through trenchless underway construction system using simple freezing technology to maximize reduction of construction periods as well as construction costs. 5.

Patented Technologies 5. Simple Freezing Assembly Box Propulsion Method 5-1. Sectioned drawing for soft subsoil propulsion

Patented Technologies 5. Simple Freezing Assembly Box Propulsion Method 5-2. Sectioned drawing for aquifer subsoil propulsion

Patented Technologies 5. Simple Freezing Assembly Box Propulsion Method 5-3. Sectioned drawing for unsafe subsoil propulsion

 In Technical Part  Secure technology of trenchless underway construction with economical Efficiency and safety  In Social Economical Part  Solve matters of traffic congestion and various civil petitions using non-excavated way  No additional costs for detour installations by minimizing traffic troubles  Reduction of construction periods and construction costs (the minimum of over 20% in comparison with the existing method technology) Patented Technologies 5. Simple Freezing Assembly Box Propulsion Method 5-4 Expectative Effects

Patented Technologies [PATENT NO : ] Awarded a Bronze Prize in 2003 Korea Patented Technology Contest Underground Passage Tunnel construction with Arched Triangular Pipe-roof Method (ATEP Method) and its Device  Triangular Steel Pipes, which are exactly manufactured to order according to the site conditions of execution are installed on the underground passage of railways and roads making use of the existing Pipe-roof method and Front jacking method. With this method, as it is executed with Arched type load stress on the upper part with is well dispersed, strong underground passages are constructed. 6.

Patented Technologies [PATENT NO : ] Awarded a Bronze Prize in 2003 Korea Patented Technology Contest Simple Freezing Pipe Jacking Method and its Device  Dry ice is injected into the dry ice cartridge of a round bar body within simple freezing steel pipes and by freezing the subsoil around a propulsion leading pipe at night, it is the method of excavating simple freezed subsoil through propulsion work. Its method can improve stability and accuracy in aquifer subsoil and economical efficiency 7.

Patented Technologies [PATENT NO : ] Awarded a Bronze Prize in 2003 Korea Patented Technology Contest Changeable Boring Machine Propulsion Method (CBM Propulsion Method) and its Device Because of changeable of the excavation machine in the head part of propulsion leading line according to various propulsion pipe diameters and subsoil conditions, its method has economical efficiency and is easy to assemble, disjoint and move equipments. 8.

Simple Freezing Steel Pipe Propulsion Method and its Device Horizontal Maintenance Mehod of Propulsion Steel Pipes used for Steel Pipes Propulsion Method and its Device Execution Method of an Ecological Moving Passage Using Large-diameter of Steel Pipes Propulsion Method Underground Passage Tunnel Construction with Arched Triangular Pipe-roof Method (ATEP Method) and its Device Medium and Small Diameter of Steel Pipe Propulsion Method and its Device Large Diameter of Steel Pipe Propulsion Method and its Device Steel Pipe Propulsion Method on the Moving Sand in the Subsurface of Aquifer and its Device Changeabel Boring Machine Propulsion Method (CBM Propulsion Method) and its Device Downtown River Installation and River Restoration Method Methods & Devices of Medium Diameter Pipe Propulsion Methods & Devices of Pipe Propulsion for soft & weak layer soil Title and Name of Patent Patent No. KYCE’s Patents

Method of Trenchless Underway Construction Using Pre-cast Assembly Concrete Box Method & Device of earth support grouting using partial commpressed air Steel Pipe Propulsion of Boulders Subsoil and its Device The Apparatus and Methods of Unexcavated Replacement for an old and Timeworn sewer Pipe Using Water-jet System and Pipe propulsion Plasma Anchor Method Method & Apparatus of continuous partial repair for old-aged sewer pipes The method of earth grouting for tunnel supporting using plasma gllassification The method & Devices of water-cutoff earth grouting using plasma gllassification The appratus & method of tunnel pre-supporting multi-grouting using puv equip. Propulsion method & apparatus for long distance using Concrete Pipe Jacking Title and Name of Patent Patent No Independently Unstable Subsoil Propulsion Method Using Continuous Freezing and Thawing Method and its Device Development of remote bedrock discontnuity measurement system

Outline Map Type of Circle Messer (T.C.M Method)

Characteristic Reduction of construction Periods & expenses 1. Reduction of excavation sections in comparison to the BOX-type’s Messer Shield 2. Construction method of structures (Propulsion Pipe or Assembly Segment) 3.1day quantity of excavation by TCM method (based on a rock) Messer Shield : Hand excavation ( Drill+ Running parallel with HRD crush work) Weathered rock  30~50 Cm/Day (average) Soft or hard rock  15 Cm / Day (average) TCM Shield : TDM excavation + Tio equipment excavation + hand excavation Weathered rock  3.0 m / Day (based on day/night shift operation) Soft or hard rock  1.2m / Day (based on day/night shift operation) Soil 7.0m / Day (based on day/night shift operation) 4. Front part cutting way Soil ground  Hand excavation(30%) + Tio(70%) Rock bed (TDM excavation + Hand excavation)(50%) + Tio(50%) 5. Reduction of minimum 1/3 in the number of person required comparing with the existing Messer Shield method

Characteristic Etc. 1.No giving rise to trouble about the safety of the construction and no incurring public complaints 2.Minimizing the necessary areas for facilities on the ground 3.Shield head guide attached circle H-Beam frame is put on the rear of Circle Messer Plate. Attachment operation of Messer Plate with Circle H-Beam by using the electromagnet principle Strucker attached Erecter and oil press cylinder is put on the inside of Shield head guide  After circle H-Beam propulsion and full face excavation, Segment prefabrication 4. Minimizing ground subsidence : Semi-Shield  minimum over 10Cm of ground subsidence Messer Shield  within 3Cm of ground subsidence 5.Curve construction is possible :Calculation of Curvature (R) can be adjusted according to circle H-Beam length & Shield head guide Body length. 6. Installing Gas density measuring instrument and Ventilation System for worker efficiency and safety Type of Circle Messer (T.C.M Method)

Work Procedure Type of Circle Messer (T.C.M Method)

Remote Bedrock Discontinuity measurement System Remote Measurement SYSTEM ■ Camera : Taking pictures of soil surface wanted to measure by arranging two cameras ■ S/W : Writing out Rose diagram, Stereonet of data analysis by S/W developed to itself by applying photogrammetry learning ■ H/W : Digital camera & Mount and so on - Rapid work efficiency - Reasonable price System

Remote Bedrock Discontinuity measurement System Taking photos after arrangement of cameras Recon by camera intervals Data analysis Writing out Rose diagram & Stereonet Connecting systems of geological information Stereogram of 3D screen & analysis Flow Chart of System

Remote Bedrock Discontinuity measurement System Measuring compass in the spot (25 data points) Measurement by machine (30 data points) Results of Measuring Rock Surface

Remote Bedrock Discontinuity measurement System 3D reconstruction model Results of Measuring Tunnel

Remote Bedrock Discontinuity measurement System Application in Fields Measurement of surface structure arrangement viewed from the surface of bedrock through remote Survey of high rock slope hard to approach the work site Examination of exposed side of tunnel which needs a short survey

Remote Bedrock Discontinuity measurement System  In costs, it has very economical effects by composing H/W including more cheaper digital camera in comparison with performance through the application of photogrammetry technology  Approach to danger areas is not needed because effective measurement of even high rock slope hard to approach the work site is possible, and work efficiency and stability are increased.  It is easy to determine geological parameter through three- dimensional 3D images.  Workload is decreased owing to basic measurement principle of non-contact.  It is effective in the reduction of workforce because just one worker can do remote measurement in various construction areas related soil surface.  Small-sized Portable Type can be easy to carry it so that the work can be also easy. Expectative Effects

Simple Freezing Pipe Jacking Method and its Device Animation movie

KYCE on TV News