Hash Tag - Youth.gov.hk
Skip to main content

#CivilEngineeringandDevelopmentDepartment

Search Result: 8

Pier improvement projects

The Government has earlier put forward a Pier Improvement Programme (PIP) to improve the facilities of public piers in remote areas to facilitate the public and tourists to access outing destinations and natural heritage sites, and to respond to local requests for meeting the basic needs of villagers that rely on boats as their main transport mode and supporting fishermen’s operation. 10 pier improvement projects in the first phaseAt present, there are more than 100 public piers in Hong Kong. Although the Government has been carrying out regular inspections and maintenance to ensure structural integrity of these piers, some of them require the soonest improvement as they are starting to age after being in service for years, or because they are unable to cope with the current operational needs. Apart from enhancing the structural integrity of the piers in phases, the PIP will also improve existing facilities and provide ancillary facilities. The first phase covers 10 remote public piers in the New Territories and outlying islands, including those located within the Hong Kong UNESCO Global Geopark at Tung Ping Chau, Lai Chi Wo, Sham Chung, Lai Chi Chong, High Island, etc.The CEDD has already carried out technical feasibility studies and preliminary designs for the pier improvement projects under the first phase of the PIP. Environmental impact assessments are in progress for some projects located within environmentally sensitive areas like marine parks. Reconstruction of Pak Kok Pier on Lamma IslandThe Pak Kok Pier is located at the northern part of Lamma Island. The pier was first built by villagers and reconstructed in the 1970s and 1990s. Now used by around 400 ferry passengers daily, the pier does not allow for a gangplank to be placed due to its primitive design. Instead, boats can only berth head-on for passengers to embark and disembark at the bow, leaving the boats susceptible to rough sea conditions. The berthing situation is unsatisfactory and reconstruction is called for an improvement.According to the engineer of the CEDD Ms Eunice HUI, the existing Pak Kok Pier will maintain normal operation during reconstruction. Upon commissioning, the new pier will not only provide more berthing spaces but also allow boats to berth side-on, making boarding and alighting easier and safer. Besides, the new pier will come with new design and ancillary facilities, such as a roof cover, a ramp, seats, WiFi, a drinking fountain, etc.Striving to advance the implementation of the second phaseThe CEDD has consulted local communities and stakeholders on the first phase of the PIP. The public have shown welcome and support to the PIP, and some have suggested expanding its scale and accelerating its implementation. Villagers expecting the works to commence soonThe indigenous inhabitant representative, Mr CHOW Hing-fook, who has been living in Pak Kok San Tsuen for more than 75 years, says the Pak Kok Pier is rather dilapidated after years of usage and villagers are looking forward to its reconstruction. In his opinion, as the new pier is designed by professionals, its facilities will provide convenient access for old villagers, while wheelchair users can wheel up to the side of a boat to get aboard. Trusting that the new pier will be very useful to villagers, he hopes the works will commence as soon as possible.Hong Kong is home to the world-famous Geopark, marine parks, historical heritage, and eco-tourism attractions, which are well-received among tourists. Some of the piers after improvement can not only facilitate residents in remote areas to travel, but also support green tourism advocated by the Government, including cultural tourism, geo-tourism and eco-tourism, so as to enhance the public’s understanding and appreciation of the outing destinations and natural heritage. (The video is broadcasted in Cantonese) (The video is provided by Development Bureau)

“Mountain cutting and rock breaking” (rock blasting and breaking)

Colleagues from the Mines Division of the Geotechnical Engineering Office (GEO) of the Civil Engineering and Development Department (CEDD) will take us to Lam Tei Quarry in Tuen Mun, which is the only existing quarry operating in Hong Kong, to appreciate the quarry operation and the work of the Mines Division in supervising   the use of explosives for “mountain cutting and rock breaking” (rock blasting and breaking) in the quarry.Lam Tei Quarry was established in the 1960’s and has operated under contract since 1982.  The quarry is located about 3 km north of Tuen Mun New Town, covering an area of about 30 hectares.  According to the Senior Geotechnical Engineer of the Mines Division, Mr HUNG Kin-chung, Roy, the quarry has been operating for about 40 years, presently accounting for 5% of the total supply of rock products used in Hong Kong.  Operation of Lam Tei Quarry is scheduled for completion in 2023, when the site will be released for development use.Quarry not only to produce rock productsA quarry can produce about 70,000 tonnes of rock products each month. Following drilling and blasting of a rock mass, the blasted rock will be carried by trucks/conveyors from the blast location to rock crushers for crushing, screening and sorting into aggregates or other rock products in different sizes for construction uses, including production of concrete and asphalt.Aggregates are essential for the production of concrete and asphalt.  Integrating the production lines of concrete and asphalt with quarrying as a one-stop operation in a quarry can achieve a better efficiency in handling/moving of rock aggregates for   processing to the concrete or asphalt. It also saves time, lowers costs and reduces carbon emissions.  Besides, quarries can also help to receive the surplus rock generated from local construction projects and recycling it into useful aggregates and other rock products. From manual stone breaking to rock blastingQuarrying in old days was labour intensive. Workers would have to manually break up a large rock blocks, using hammers, chisels and steel wedges, into aggregates in different sizes for use, the process of which is called “stone breaking”.  At that time, limited considerations were given to the safety and health of workers, as well as the environmental impact of the quarry operations.  However, the situation has improved since the 1960s when the Government enacted new regulations to better control the use of explosives and the workplace safety in quarries.Stone breaking is no longer used in quarrying. Nowadays, “controlled blasting” will be used for rock extraction from a rock mass.  According to the Explosives Officer 1 of Mines Division, Mr TSE Wai-tong, the current blasting techniques have been well developed to make blasting safe and efficient.  Nevertheless, quarry operators are required to apply for and obtain approval from Mines Division for blasting to ensure that the blast design, arrangement and monitoring plan are in line with the safety and environmental standards prior to the proposed blast.Mr TSE Wai-tong also pointed out that no matter how big a blast is, its impact cannot be ignored and safety issues should never be discarded.   Protective measures such as blasting cages and vertical screens would have to be provided at the blast locations, with a view to protecting against flyrock (projected rock fragments) affecting workers and adjacent facilities.Mitigation of environmental impactsAccording to Senior Explosives Officer of the Mines Division, Mr LEUNG Pak-ming, before the cartridge explosives and detonators are placed in predrilled blast holes at the blast location, the Mines Division will deliver the required explosives from the Government Explosives Depots to the site at the contractor’s request. In order to minimise the environmental impacts of vibration, air overpressure and noise due to blasting, delayed firing at each blast hole can be carried out using detonators suitably arranged at different time delays.According to Mr LEUNG Pak-ming, blasting is required for rock excavation in many infrastructure projects involving site formation works, tunneling, etc. In order to facilitate  blasting by early morning, colleagues may have to start work in the early hours after midnight. Regarding the working environment, they may have to work underground (e.g. in deep excavations or tunnels) where the environment is hot and stuffy. The discomfort, particularly when carrying heavy equipment, is beyond description.Whether the Anderson Road Quarry, which has just accomplished its historical mission, or Lam Tei Quarry, being the only quarry still operating, many workers have taken part in the activities of “mountain cutting and rock breaking”. (The video is broadcasted in Cantonese)  (The video is provided by Development Bureau)

Landslide Emergency Services and Slope Maintenance Teams (Civil Engineering and Development Department)

"My grandpa and uncle are engineers. As a kid, they nurtured my interest in this area. Back then, whenever I saw tunnels, I found them so remarkable. I was always wondering why a tunnel would not collapse." Geotechnical Engineer, Civil Engineering and Development Department, Fung Ka-wing told us."Hong Kong has lots of mountains and little flat land, and the population density is high. Every year, the Geotechnical Engineering Office receives about 300 reports on landslides." "Once, I arrived at a landslide site and I received a message at the same time that Super Typhoon Mangkhut would approach Hong Kong soon. I urged the villagers to move out temporarily as it was very dangerous. At first, the villagers did not listen to my recommendation. But I explained the situation to them patiently. Finally, they accepted it."He said, "Our top priority is to ensure the safety of the general public. We believe that they can feel it too." Hong Kong has a land area of about 1,100 km2. Around 60% of the land area consists of relatively steep natural terrain. During the rainy season, landslides occur frequently, with an average of 300 reported landslides in Hong Kong each year.The Geotechnical Engineering Office (GEO) of the Civil Engineering and Development Department (CEDD) has a slope safety management system in place to protect the general public from landslide hazards.When the Hong Kong Observatory issues a Landslide Warning or typhoon signal no. 8 or above, the Emergency Control Centre of the Geotechnical Engineering Office will be in operation.Over ten geotechnical engineers and technical officers will be on duty to provide geotechnical advice to government departments on handling landslide emergencies.Upon receiving landslide reports, geotechnical engineers will carry out site inspections and give advice to government departments to restore services and facilities disrupted by landslides.Geotechnical Engineer, Civil Engineering and Development Department, Ting Sui-man said, "Our top priority is to ensure the safety of the general public. If rescue work is required, we will collaborate with the Fire Services Department and provide advice to the Police on the areas to be cordoned off. We will also contact responsible works departments to carry out emergency slope works. It includes promptly covering the slopes with tarpaulin to prevent rainwater infiltration which may cause further landslides."When more serious landslides occur, the work of the geotechnical engineers will be even more hectic. In the evening of 29 August 2018, a massive landslide hit a road section of Fan Kam Road near Ta Shek Wu Tsuen. Both lanes of Fan Kam Road were closed due to inundation of debris and muddy water on the road.Geotechnical Engineer, Civil Engineering and Development Department, Fung Ka-wing said, "When I arrived at the site, the landslide debris from the hillside covered the entire road. The debris was up to knee level. I urged the villagers to move out temporarily."Resident, Angelina Yeung said, "I heard a “boom” and all of a sudden the debris rushed to near my house, and a van was bumped in. The Geotechnical Engineering Office used concrete blocks to build a barrier around the slope, covered the slope surface with tarpaulin and shotcrete the landslide scar."Angelina Yeung continued, "A lot of elderly people live here. They (CEDD) did a lot of works, some beyond their scope. They have been really helpful. And we are so grateful to them."The day after the landslide, staff of the Geotechnical Engineering Office and Survey Division visited the site again.They used drones and handheld laser scanners to quickly conduct landslide risk assessment. Detailed geographical data of the nearby natural terrain were collected, providing useful information for the design of emergency works.Geotechnical Engineer, Civil Engineering and Development Department, Choi Wai-kwok, Michael explained, "The data collected on site, i.e. the three-dimensional image, enabled our engineers to carry out landslide hazard study and to assess whether there is any immediate or long term landslide risk. Based on the estimated size and volume of potential further landslides, suitable engineering works would be carried out accordingly, such as the installation of soil nails and flexible barrier to protect Fan Kam Road at slope toe."Fan Kam Road is the main road connecting Fanling and Kam Tin. The landslide took place just before the school re-opening in September. To restore the road service as quickly as possible and to minimise disruption to the residents, the Geotechnical Engineering Office worked closely with the Highways Department. Immediate action was taken to mobilise the contractors to carry out emergency repair work at the critical location.Geotechnical Engineer, Civil Engineering and Development Department, Lo Ho-pong said, "Most of the landslide debris was accumulated at the mid-level of the hillside, posing subsequent landslide danger. The biggest challenge was how to deal with these debris. Our target was to re-open at least one lane of the road to cope with the traffic on the first day of school."He continued, "We discussed with our contractors and engineers on how to optimise the design to ensure that the construction works could be completed by 10 p.m. that night."Immediately after completion of Stage 1 emergency works, Stage 2 works was also successfully completed within the next two weeks. All these emergency works were essential for  preventing more severe landslides from happening when Super Typhoon Mangkhut hit Hong Kong.Actually, there are some other works of the Geotechnical Engineering Office that are closely related to the daily life of the general public.Geotechnical Engineer, Civil Engineering and Development Department, Chu Kei-hong said, "CEDD operates 90 raingauges in Hong Kong, which account for the majority amongst all government departments. The rainfall data collected by these raingauges enable us to have a clear picture of the rainfall condition of Hong Kong. This facilitates our joint decision with the Hong Kong Observatory on the issue or cancellation of a Landslide Warning."Chief Geotechnical Engineer, Civil Engineering and Development Department, Yeung Fei, Jenny said, "We are now facing the challenge of extreme rainfall events caused by global warming. We must stay alert, and cannot slack off. We will keep striving our best to serve the public, and to protect their lives and properties from the threats of landslides." (For more details, please visit Sevice Excellence Website)

Pressing ahead with the implementation of the New Territories Cycle Track Network

City dwellers have become more aware of healthy living. Cycling, which integrates exercise and recreation, is most suitable for the whole family to participate in. The Government has been committed to developing a comprehensive cycle track network in the New Territories (NT) to provide a cycle track connecting the east and west of the NT for leisure and recreation purposes in order to improve people’s quality of living. Here the colleagues of the Civil Engineering and Development Department (CEDD) will introduce this new cycle track with a total length of about 82 kilometres (km) upon completion and share its design concept and characteristics.A cycle track running through the east and west of the NTIn recent years, the Government has been striving to implement the NT Cycle Track Network project, which will link up the individual cycle track sections currently scattered in the NT to provide a continuous east-west cycle track in the NT by improving the existing cycle tracks and constructing new ones. Senior Engineer of the CEDD, Mr CHU Wai-lun, Thomas, says the comprehensive NT Cycle Track Network broadly comprises two backbone sections: the one from Tuen Mun to Ma On Shan is about 60 km long (starting from Tuen Mun in the west and reaching Ma On Shan in the east via Yuen Long, Sheung Shui, Fanling, Tai Po and Sha Tin), and the other from Tsuen Wan to Tuen Mun is about 22 km long (to be built along the seafront between Tsuen Wan and Tuen Mun). Yuen Long – Sheung Shui section completedAt present, the sections from Tuen Mun to Yuen Long and from Sheung Shui to Ma On Shan have been completed and are open to the public. Regarding the cycle track section that connects the two sections, i.e. the track section that runs from Yuen Long to Sheung Shui, the part along Yau Pok Road in Yuen Long was opened to the public. The remaining parts have been opened and the entire 60 km-long backbone section between Tuen Mun and Ma On Shan is completed. Based on the cycling speed of the general public, it will take about six hours to complete the entire route. And that will satisfy the leisure needs of the enthusiastic riders.Meanwhile, the CEDD has been taking forward the implementation of the backbone section of the cycle track between Tsuen Wan and Tuen Mun. According to Mr Thomas CHU, the section between Tsing Tsuen Bridge and Bayview Garden in Tsuen Wan is expected to be completed and open to the public early next year.Beautiful scenery along the cycle track alignmentEngineer of the CEDD, Mr CHIU Chi-ho, Derek, introduces the characteristics of the newly opened cycle track section running along Yau Pok Road to Pok Wai South Road in Yuen Long. He says that in the selection of the alignment of the route, priority was given to spots with beautiful scenery and cultural elements, such as Kam Tin River in Yuen Long and Tai Fu Tai in San Tin, to enhance the appeal of the track. At the same time, the project team had considered the impacts of the cycle track alignment on the residents, environment and ecology in the vicinity, so as to optimise its design to avoid affecting some conservation areas, bird habitats, etc. Safety and environment beautification taken into design considerationAccording to Mr Derek CHIU, the Government attaches great importance to safe cycling. In the design of the cycle track, the project team has considered its width, gradient and curvature, and provided proper traffic signs, road markings and guard rails at suitable locations to protect the safety of cyclists and other road users. Furthermore, wherever technically feasible, cycle bridges and cycle subways are provided to minimise the need for cyclists to get off their bicycles to cross the roads.It is equally important to beautify the environment. The project team has specifically arranged the planting of flowers that blossom all year round alongside the cycle track. Apart from preserving as far as possible the existing trees next to the cycle track, hundreds of new trees and tens of thousands of shrubs have been planted to create a green environment in the community. The railings along the cycle track have been specially painted with patterns of rolling hills to blend in harmoniously with the natural surroundings.Additional ancillary facilities to provide a comfortable environmentTo create a comfortable cycling environment, Mr Derek CHIU says that the department has also provided ancillary facilities for the cyclists, such as resting stations with bicycle parking spaces to allow cyclists to take a rest or visit nearby attractions before continuing their journey. Cycling entry/exit hubs are also provided in the vicinity of MTR stations such as Sheung Shui Station and University Station for cyclists to gather or disband. The hubs provide facilities such as bicycle rental kiosks, bicycle parking spaces, first aid stations, refreshment kiosks and toilets. (The video is broadcasted in Cantonese) (The video is provided by Development Bureau)

Mother's Day Series: Geotechnical Engineer Ms TING Sui-man

Here we would like to introduce to you a colleague from the government who is also a good mother, Ms TING Sui-man. Ms TING Sui-man, joined the Geotechnical Engineering Office (GEO) of the Civil Engineering and Development Department (CEDD) as Geotechnical Engineer back in 2011. She has worked in two different divisions, both of which are related to landslide emergency services. A petite and cheerful lady, Ms TING is “Ting Ting” to her colleagues. Coordinating Landslide Emergency Services Currently, Ms TING is mainly responsible for assisting in the coordination of the GEO’s landslide emergency services. With over 200 geotechnical engineers and technical officers working shifts, the GEO provides 24-hour emergency services all year round to give geotechnical advice to government departments on contingency actions to be taken in case of danger arising from landslides. The GEO will, among others, assess the situation at scene and advise whether closure of roads, evacuation of residents from the affected buildings, and urgent repair works should be implemented. When a landslip warning or typhoon signal number 8 or above has been issued by the Hong Kong Observatory (HKO), the GEO’s Emergency Control Centre (ECC) in the Civil Engineering and Development Building at Homantin will be activated to handle landslide incidents, safeguard public safety, and assist government departments to restore public facilities affected by the incidents. Ms TING is responsible for the coordination of various supporting activities, such as deployment of staff to work shifts, ensuring the proper functioning of equipment and helping in the dispatch of geotechnical engineers to the landslide scenes as soon as possible for assessment. Therefore, she must be prepared to start her work anytime during the entire rainy season. Furthermore, she is also responsible for the arrangement of training on landslide emergency services for colleagues. As a matter of fact, the GEO has introduced virtual reality environment for such training this year. Climbing mountains and wading rivers under the scourging sun and in the rain Having been a geotechnical engineer for years, for a period of time in her career, Ms TING had to make a long and difficult journey to work in some remote areas. Her first position in the GEO was to operate the Landslip Warning System and manage the raingauges operated by the GEO. There are about 90 GEO automatic raingauges all over Hong Kong, with some located in places as far as Fan Lau in Lantau Island, Po Toi Island and Tap Mun. As decisions on whether to issue a landslip warning are made jointly by the HKO and GEO with reference to data collected from raingauges and other information, Ms TING and technical officers have to build and repair raingauges under the scourging sun or in the rain from time to time. This is not an easy task according to Ms TING.Motivation comes from her children A mother of a son and a daughter, Ms TING admits that she is inevitably feeling stressed as she has to fulfil the heavy commitments of both work and family life, which includes meeting her children’s education needs. That said, her children are her biggest motivation. After a day of work, her son would offer his arm for her head to rest on, while her daughter would say she is looking for a book named “100 ways to be happy” to cheer her up. Ms TING says that she does not want to be a “monster mom”, so she would never require her children to be at the top of the class, or to participate in too many talent training programmes. She wants them to be able to grow up in a relaxed and happy environment. Smilingly, she says that some of her fondest moments are seeing her children coming back from school, sweating a lot with dishevelled hair, showing that they must have had a good day at school. However, she does have a certain level of expectation on her children’s moral values, especially as our society is so full of temptations. She hopes that her children will “keep a moral compass”, whereby they can distinguish right from wrong and know what should or should not be done. She believes that by having the right thoughts, taking the right action and saying the right words, they will lead a life of abundance and success.To maintain public safety, they need to remain unfazed and always get prepared to offer emergency service in times of inclement weather. On top of that, they are also shouldering family responsibilities. We hope that everyone will continue to provide unlimited support and encouragement for all the hard-working, good mothers on earth, whether it is Mother’s Day or not. (The video is broadcasted in Cantonese) (The video is provided by Development Bureau)

Technical Officer

The CEDD aims to contribute to society in the development of its infrastructure and in other efforts to keep the environment green and sustainable. It also aims to establish Hong Kong as a city of infrastructural safety. Mannix and Amanda, two technical officers in the CEDD, shared their feelings about the job. Thanks to the experimental work they do on a daily basis, they have become prudent and organized. Let us take a look at this challenging profession which is closely related to our everyday life. Organisation chartOfficial recruitment page

Geotechnical Engineer

Owing to its mountainous terrain, Hong Kong is predisposed to flooding and landslides. Protecting our citizens from these natural hazards is the job of not only the disciplinary forces, but also the geotechnical engineers, who are responsible for monitoring every landslide black spot to make high-precision assessment of landslides. Striving to protect the lives of local citizens, Jenny Yeung demonstrates how women can equal men in their fearless performance as geotechnical engineers in the face of the dangers of natural disasters. Organisation chartOfficial recruitment page

Civil Engineer

To many, being an engineer simply requires an aptitude for making complex calculations and wholehearted commitment to construction site work. However, Sunny Sun, a civil engineer at the Civil Engineering and Development Department, will tell you that his job involves not only working on construction sites, but also reaching out to the public, so that in the planning process he can contribute to building our city with a human touch. Organisation chartOfficial recruitment page