佐敦谷箱形雨水渠污水截流設施 – 泵房

  • 綠化天台為廠房降溫

  • 廠房南面的綠化外牆

  • 收集太陽能的天台光伏板

  • 天窗為廠房採光

  • 滴水自動灌溉系統可節約用水

  • 廠房設有閉路電視

  • 通風及除味系統能控制氣味源頭並改善室內空氣質素

  • 自動水閘

  • 創新的大樹移植工程

  • 大樹最終移植地點


佐敦谷箱形雨水渠收集飛鵝山、牛池灣、九龍灣及佐敦谷一帶的雨水,以排放到啟德明渠進口道。由於上游受污染雨水影響明渠進口道水質,政府決定在箱形雨水渠下游末端建造截污設施,以改善水質,配合區內發展。

工程項目涉及在啟福道附近興建全港首個全自動污水截流站連污水泵房,能因應天氣預報及即時天氣狀況而自動控制水閘開關,雨天協助排洪,旱天截污,實在一舉兩得。

為配合渠務署的環保政策,工程項目採用多項減碳措施,以盡量減低工程對環境的影響。措施包括在廠房天台裝設天窗及太陽能光伏板,以善用陽光;進行大量綠化工程等。

 


環保特點

在可持續發展上,綠化天台及外牆不但美化外觀,還可減少建築物的熱能及碳排放。廠房採用節能設計,天台逾半面積綠化,以紓緩熱島效應;並設置光伏板,利用可再生太陽能為廠內設施供電,每年節省兩成耗電量。廠房亦設有天窗及採用高效照明設計,以減少耗能;更透過雨水收集循環再用系統及滴水灌溉系統(因應天氣自動控制灑水量)節約用水。工程項目的主要環保特點如下:

  • 綠化天台及外牆
  • 天窗及窗戶
  • 光伏板
  • 滴水灌溉系統連天氣監控裝置
  • 通風及除味系統

 

故事

What are the motivations to go green?

DSD is committed to providing world-class wastewater treatment and stormwater drainage services, enabling the sustainable development of Hong Kong. To improve the drainage services in an environmentally responsible manner, DSD is strongly motivated to go green in its functional buildings.

What are the major strategies to earn the credits and achieve the BEAM Plus rating?

Site Aspects and Energy Use are two major strategies to earn high credits and achieve the BEAM Plus rating.

Site Aspects

  • Landscaping and planters including vertical green walls
  • Good control of air/noise/water pollution during construction

Energy Use

  • Energy saving by adopting optimised lighting design, highly efficient split type air-conditioners and photovoltaic system
  • Less energy consumption by natural lighting with skylights
  • Consideration of building permeability for building features to enhance natural ventilation
  • Highly efficient dripline irrigation system instead of the sprinkler type and weather-dependent control in lieu of timer control to enhance water saving


What are the main obstacles to earning the credits and how to tackle them?

The biggest challenge in achieving a high green standard was to meet the extremely tight work schedule. Well and thorough planning in the design stage with stringent site management facilitated the timely completion of the project, including the provision of green features, before the commissioning of the new Kai Tak Cruise Terminal.

What do you consider the key project success to meet the public’s expectations?

The key project success is to benefit the public by DSD’s high devotion to providing a green, harmonious and sustainable environment as well as caring for the public during the construction.

Innovative Tree Transplantation

With a height of 12 metres and a spread of 10 metres x 10 metres, the Chinaberry tree (Melia Azedarach) rooted within the works area for the interception facilities is a deciduous species commonly found in Asia. Although this big tree is not considered to be particularly valuable, DSD wished to preserve it in view of its strong and healthy growth.

To complete this challenging task, the project team conducted various technical studies on transplanting the entire tree including the trunk and rootball in one go. Factors like technical feasibility as well as the need to keep the tree healthy during the transplantation, were taken into account.

The preliminary design was a tree pot measuring 8 metres x 5 metres x 3.5 metres (in depth) in the form of an inverted triangle with a total weight of 250 tonnes. Cranes currently available in the local market each having a maximum load capacity of 400 to 500 tonnes could not manage a lifting of such a weight to 4 metres above ground and maintain sufficient clearance to avoid any damage to the tree during the operation.

The project team decided to carry out site investigation and excavated trial trenches to confirm the rootball size. It was identified that the rootball zone was 1.5 metres in depth and 3 metres in radius around the tree trunk. Based on such findings, the project team worked out a design for the best-fit tree pot measuring 6.4 metres x 6.4 metres x 3 metres (in depth) in the form of an inverted triangle.

After a long period of study, site visits, design and set up, the transplanting works were ready for implementation. In the morning of 15 April 2011, the project team mobilised a 400-tonne crane, two trailers each with a carrying capacity of 170 tonnes, and more than 20 workers to transplant the tree. The works involved the lifting of the pot containing the tree for relocation to a temporary nursery about 80 metres away from the original position. The tree was kept there until it was moved to its final home on 24 July 2013 after the interception facilities were built.

Automatic Interception Facilities

The fully automatic flow interception facilities are the first of their kind in Hong Kong which can facilitate automatic penstock operation in response to weather forecasts and real time weather conditions.

On dry days, when the sensors capture the dry weather signals from the Hong Kong Observatory and detect the low water level inside the interception compound, the penstocks will close automatically in 13 minutes so that the polluted flow is intercepted and transferred via the trunk sewer along Kai Fuk Road to the Kwun Tong Preliminary Treatment Works.

On rainy days, when the red or black rainstorm signal is hoisted or the water level inside the interception compound rises to the preset value, the penstocks will open automatically in 13 minutes to discharge the stormwater and prevent upstream flooding.

The Fail-safe System

The fail-safe hydraulic system consists of accumulators and nitrogen gas cylinders. Under normal operation, the hydraulic pump drives to increase the system pressure and the hydraulic cylinder will rise up to open the penstocks. In case of power failure, the nitrogen stored in the accumulators will provide pressure as a backup power to open the penstocks.

Penstocks are also installed at the bypass channel. When the water level reaches the preset alarm level due to power failure or heavy rainstorm, they will open automatically to divert the flows so as to prevent upstream flooding.

Public Recognition

This project, integrating the advanced flow interception design, innovative tree transplant method together with the green elements, won the Merit Award under the Environmental Design/Greening Category in the HKILA (Hong Kong Institute of Landscape Architects) Design Awards 2012, and was certified as a BEAM Plus Platinum Project 2014 by the Hong Kong Green Building Council.

訪問


新建建築1.1版
最終鉑金級

  • 總分: 79.5
Innovation Addition  IA: 3
         

環保特點

在可持續發展上,綠化天台及外牆不但美化外觀,還可減少建築物的熱能及碳排放。廠房採用節能設計,天台逾半面積綠化,以紓緩熱島效應;並設置光伏板,利用可再生太陽能為廠內設施供電,每年節省兩成耗電量。廠房亦設有天窗及採用高效照明設計,以減少耗能;更透過雨水收集循環再用系統及滴水灌溉系統(因應天氣自動控制灑水量)節約用水。工程項目的主要環保特點如下:

  • 綠化天台及外牆
  • 天窗及窗戶
  • 光伏板
  • 滴水灌溉系統連天氣監控裝置
  • 通風及除味系統

 

故事

What are the motivations to go green?

DSD is committed to providing world-class wastewater treatment and stormwater drainage services, enabling the sustainable development of Hong Kong. To improve the drainage services in an environmentally responsible manner, DSD is strongly motivated to go green in its functional buildings.

What are the major strategies to earn the credits and achieve the BEAM Plus rating?

Site Aspects and Energy Use are two major strategies to earn high credits and achieve the BEAM Plus rating.

Site Aspects

  • Landscaping and planters including vertical green walls
  • Good control of air/noise/water pollution during construction

Energy Use

  • Energy saving by adopting optimised lighting design, highly efficient split type air-conditioners and photovoltaic system
  • Less energy consumption by natural lighting with skylights
  • Consideration of building permeability for building features to enhance natural ventilation
  • Highly efficient dripline irrigation system instead of the sprinkler type and weather-dependent control in lieu of timer control to enhance water saving


What are the main obstacles to earning the credits and how to tackle them?

The biggest challenge in achieving a high green standard was to meet the extremely tight work schedule. Well and thorough planning in the design stage with stringent site management facilitated the timely completion of the project, including the provision of green features, before the commissioning of the new Kai Tak Cruise Terminal.

What do you consider the key project success to meet the public’s expectations?

The key project success is to benefit the public by DSD’s high devotion to providing a green, harmonious and sustainable environment as well as caring for the public during the construction.

Innovative Tree Transplantation

With a height of 12 metres and a spread of 10 metres x 10 metres, the Chinaberry tree (Melia Azedarach) rooted within the works area for the interception facilities is a deciduous species commonly found in Asia. Although this big tree is not considered to be particularly valuable, DSD wished to preserve it in view of its strong and healthy growth.

To complete this challenging task, the project team conducted various technical studies on transplanting the entire tree including the trunk and rootball in one go. Factors like technical feasibility as well as the need to keep the tree healthy during the transplantation, were taken into account.

The preliminary design was a tree pot measuring 8 metres x 5 metres x 3.5 metres (in depth) in the form of an inverted triangle with a total weight of 250 tonnes. Cranes currently available in the local market each having a maximum load capacity of 400 to 500 tonnes could not manage a lifting of such a weight to 4 metres above ground and maintain sufficient clearance to avoid any damage to the tree during the operation.

The project team decided to carry out site investigation and excavated trial trenches to confirm the rootball size. It was identified that the rootball zone was 1.5 metres in depth and 3 metres in radius around the tree trunk. Based on such findings, the project team worked out a design for the best-fit tree pot measuring 6.4 metres x 6.4 metres x 3 metres (in depth) in the form of an inverted triangle.

After a long period of study, site visits, design and set up, the transplanting works were ready for implementation. In the morning of 15 April 2011, the project team mobilised a 400-tonne crane, two trailers each with a carrying capacity of 170 tonnes, and more than 20 workers to transplant the tree. The works involved the lifting of the pot containing the tree for relocation to a temporary nursery about 80 metres away from the original position. The tree was kept there until it was moved to its final home on 24 July 2013 after the interception facilities were built.

Automatic Interception Facilities

The fully automatic flow interception facilities are the first of their kind in Hong Kong which can facilitate automatic penstock operation in response to weather forecasts and real time weather conditions.

On dry days, when the sensors capture the dry weather signals from the Hong Kong Observatory and detect the low water level inside the interception compound, the penstocks will close automatically in 13 minutes so that the polluted flow is intercepted and transferred via the trunk sewer along Kai Fuk Road to the Kwun Tong Preliminary Treatment Works.

On rainy days, when the red or black rainstorm signal is hoisted or the water level inside the interception compound rises to the preset value, the penstocks will open automatically in 13 minutes to discharge the stormwater and prevent upstream flooding.

The Fail-safe System

The fail-safe hydraulic system consists of accumulators and nitrogen gas cylinders. Under normal operation, the hydraulic pump drives to increase the system pressure and the hydraulic cylinder will rise up to open the penstocks. In case of power failure, the nitrogen stored in the accumulators will provide pressure as a backup power to open the penstocks.

Penstocks are also installed at the bypass channel. When the water level reaches the preset alarm level due to power failure or heavy rainstorm, they will open automatically to divert the flows so as to prevent upstream flooding.

Public Recognition

This project, integrating the advanced flow interception design, innovative tree transplant method together with the green elements, won the Merit Award under the Environmental Design/Greening Category in the HKILA (Hong Kong Institute of Landscape Architects) Design Awards 2012, and was certified as a BEAM Plus Platinum Project 2014 by the Hong Kong Green Building Council.

訪問

項目細節

竣工年份 2014
樓宇數目 1
層樓 1 (單層廠房)
類別 政府,機構和社區

項目團隊

項目發展商/持有人 香港特別行政區政府 - 渠務署
項目經理 博威工程顧問有限公司
建築師 領建建築師事務所有限公司 (建築)
園境設計師 吳振麒園境規劃事務所有限公司
機電工程師 博威工程顧問有限公司
土木及結構工程師 博威工程顧問有限公司
承建商 新昌營造建築有限公司
工料測量師 博威工程顧問有限公司
可持續設計顧問 博威工程顧問有限公司
環保顧問 漢臻科技有限公司
AVA 豐能顧問有限公司
Energy Analysis 豐能顧問有限公司
Life Cycle Assessment (LCA) and Lighting Consultant 豐能顧問有限公司

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