Slides

[Virtual Presenter] Lee Chee Yang is an experienced Tunnel Engineer with a Bachelor of Civil Engineering with Honors from Universiti Teknologi PETRONAS (UTP) and is currently employed at ICOP Construction (M) Sdn. Bhd. Microtunneling techniques, in which he is highly experienced, are a specialized form of underground construction which utilize efficient excavation methods and equipment to tunnel through hard rock. He has successfully designed and implemented microtunneling projects in limestone rock..

[Audio] Microtunneling techniques can be employed in limestone rock construction, given the right technical expertise. This slide discusses a Tunnel Engineer with a Bachelor of Civil Engineering from Universiti Teknologi PETRONAS (UTP) who is well-suited for the project, having the knowledge and experience to comprehend the geological changes in the area. The project overview, its site and scope, monitoring and control procedures, as well as technical data will be discussed. Additionally, the basic tasks of the Tunnel Boring Machine (TBM), the collection of project data, and our recommendation will be presented..

[Audio] Batu kapur di peninsular Malaysia biasanya terbentuk di sekitar Kuala Lumpur dan Perak, dan untuk tujuan pembinaan, kita boleh menggunakan teknik microtunneling dalam batu kapur. Untuk memenuhi keperluan ini, pilihan yang sesuai ialah jurutera terowong dengan Ijazah Sarjana Muda Kejuruteraan Awam daripada Universiti Teknologi PETRONAS (UTP)..

[Audio] Microtunneling in limestone rock presents challenges due to its hardness, fractures and faults, inhomogeneity, abrasiveness, risk of groundwater ingress, difficulty in controlling and maintaining alignment, and potential for environmental and cost implications..

[Audio] Microtunneling is a technique that enables the building of underground passages in hard rock surfaces, especially those made of limestone. This technique requires a certain level of experience with the terrain and its properties, as well as the ability to use appropriate tools and machinery. A Bachelor of Civil Engineering from Universiti Teknologi PETRONAS (UTP) gives qualified engineers the ability to complete projects involving limestone rock successfully. Such engineers are able to handle machinery related to the project, recognize potential dangers, and develop suitable structural solutions..

[Audio] Microtunneling has traditionally relied on limited technological advances, with little development over the past 50 years. Planning and implementation is typically done with a basic level of knowledge and awareness. Additionally, due to its non-greenfield nature, there may be a disruption of surface levels and issues related to underground utilities. In general, these techniques are limited to shallow trenches only. Moving forward, let's examine higher tech solutions..

[Audio] At the Langat 2 Project, the construction of the water treatment and distribution requires microtunneling techniques in limestone rock. This requires a highly skilled tunnel engineer who has Bachelor of Civil Engineering qualification from the Universiti Teknologi PETRONAS. With this qualification, they will be able to effectively carry out the tasks required for the microtunneling project and achieve the MBOR distinction of the longest and deepest twin microtunneling parallels line..

[Audio] Microtunneling is a powerful tool in construction, especially when dealing with difficult conditions such as limestone rock. At Universiti Teknologi PETRONAS, our Bachelor of Civil Engineering trains students in the technology needed to successfully navigate these complex projects. The project scope for Universiti Teknologi PETRONAS' latest project is to make use of tunneling methods, installing a DN2500mm Concrete Cladded Mild Steel Jacking Pipe to facilitate water pipeline installation. Trenchless technology is being utilized, with the project location in Kuala Lumpur and the project crossing under Besraya Highway, KTMB Track, ERL Track, MRT Elevated Track, and the KL-Seremban Highway..

[Audio] Microtunneling in limestone rock is a complex yet effective process in the construction industry. It requires specific engineering skills to plan and implement a successful project. A Tunnel Engineer, with a Bachelor of Civil Engineering from Universiti Teknologi PETRONAS (UTP), has the knowledge and experience necessary to effectively complete the microtunneling project at the TPM Car Park, Besraya Highway 63. Utilizing the receiving shafts with diameters of 10m and 7.5m, and jacking shafts with a diameter of 11m, this engineer will install a 337m long tunnel under the KL-Seremban Highway, and two rail tracks, containing KTM Railway Track and Virt Elevated Railway Track. With the precise planning and engineering of this Tunnel Engineer, microtunneling can be a successful and cost-saving process for this project..

[Audio] Microtunneling techniques are widely used in construction and require an experienced Tunnel Engineer with a Bachelor of Civil Engineering degree from Universiti Teknologi PETRONAS (UTP) to be successful. This slide displays some of the tasks that a Tunnel Engineer might be involved in. These responsibilities include performing data analyses for Seismic Reports and Soil Investigation Reports, as well as creating detailed specifications for works. With a UTP degree, a Tunnel Engineer is prepared to handle multiple aspects of micro tunneling in limestone rock for construction projects..

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[Audio] Microtunneling techniques in limestone rock are widely applicable in construction works and an ideal professional for this is a Tunnel Engineer with a Bachelor of Civil Engineering from Universiti Teknologi PETRONAS (UTP). Monitoring and control, as well as instrumentation, are a major component of such engineering. This includes measuring the surface settlement points, inclinometer and piezometer, as well as a network survey and periodical tunnel survey every 20m. Additionally, jacking force and pipe deflections should be monitored through the JC pipe monitoring system installed at each IJS station. This system provides real-time pressure between IJS, and the data collected from these monitoring and control activities plays a key role in the success of the project..

[Audio] Microtunneling techniques in limestone rock offer an effective and economical way to complete construction projects. To be successful, the project requires a Tunnel Engineer with a Bachelor of Civil Engineering from Universiti Teknologi PETRONAS (UTP) and relevant technical knowledge. Line 1 had a length of 337 meters, while line 2 was 325 meters. Borehole pipe and TBM Outer Diameter were both 3025mm and the depth below ground surface was 25 meters. The internal diameter of reinforced concrete segments measured 1.8 meters on the outside, with an outer diameter of 2.5 meters. Length of reinforced concrete segments was 1.5 meters in the curves and 3.0 meters in the straight section. The horizontal radius of curvature was 2500 meters and the vertical radius was 1000 meters. The permanent torque achieved was 424 kNm..

[Audio] A Bachelor of Civil Engineering from Universiti Teknologi PETRONAS (UTP) is a suitable candidate for construction of tunnels in limestone rock through the use of microtunneling techniques. The engineer will have access to advanced microtunneling equipment, such as the AVN slurry pressurized method, SLS-LT guidance system, automatic tunnel lubrication system, automatic data logging and control system, real time monitoring intermediate jacking system, special designed launch seal system, emergency sealing unit, pipe brake unit, and real-time CCTV surveillance system with IP cameras for extra security..

[Audio] Tunnel construction can rely on a range of methods, but when building through limestone, a Tunnel Boring Machine (TBM) offers the best solution. TBMs bring benefits such as improved safety for workers, industrialization of the process, and the generation of a high quality end product. Nevertheless, there are risks associated with these technologies that must be taken into consideration. Once a TBM is chosen for the job, the process becomes rigid, and therefore, a comprehensive analysis of the relevant parameters is necessary to make sure the correct tunnelling technique is chosen..

[Audio] Microtunneling techniques are highly effective in dealing with limestone rock. Our Tunnel Engineer, with a Bachelor of Civil Engineering from UTP, is qualified to take advantage of the advantages of these techniques in the construction process. It involves several stages such as launching and putting in place the relevant works, completing surveys and organizing the construction activities. The tunnel is finished and the Tunnel Boring Machine (TBM) is then extracted, and the microtunneling process can then begin..

Jacking Force and Face Contact Force Graph. . OOO 2 . 220 •a 0.073 22 .606 s .000 .er.0% s 7 .300 so. 71.0 .90 O s .00 00. aes .600 .01 2 , 700 IOS .370 . 32.

[Audio] A graph illustrating changes in horizontal and vertical deviation across a range of 40 to 50 meters is presented. The Tunnel Boring Machine is employed and deviation from the projected path is monitored on the aforesaid graph. Necessary qualifications for the position include a Bachelor of Civil Engineering from UTP..

[Audio] A Tunnel Engineer with a Bachelor of Civil Engineering from Universiti Teknologi PETRONAS (UTP) is required for this construction project due to a number of challenging features, such as unstable geology, groundwater management, cavities and voids, high compressive rock strength, steering in curved sections, and fault zones and grout consumption. This Engineer will need to be able to safely and effectively utilize microtunneling techniques in limestone rock..

[Audio] Our project completed the two tunnels in 3 months, a full month ahead of schedule, meeting or exceeding client expectations in every way. Our team worked diligently to cultivate great relationships with the owner, the consultants, the contractors, and the local community, with minimal disruption. We are proud to say that our Tunnel Engineer with a Bachelor of Civil Engineering from Universiti Teknologi PETRONAS (UTP) was instrumental in enabling this success..

[Audio] Microtunneling techniques in limestone rock can provide a cost-effective and efficient solution for many construction projects. A Tunnel Engineer with a Bachelor of Civil Engineering from Universiti Teknologi PETRONAS (UTP) is required to oversee these projects. That concludes this presentation and I'd like to thank you all for your attention and time..