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Installation of Grouted Jacket to Protect Existing Major Water Pipes for Trenchless Construction in Hong Kong
| 题名： | Installation of Grouted Jacket to Protect Existing Major Water Pipes for Trenchless Construction in Hong Kong |
| 正文语种： | 中文 |
| 作者： | Ir Maurice W W Lee Ir Quentin K T Yau IrKWMak Ir S S Lam Ir F C Lui |
| 作者单位： | Maurice Lee & ssociates Ltd rainage Services epartment,Government of the Hong Kong S R, hina |
| 关键词： | grouted jacket water mains trenchless construction safety |
| 摘要： | T(o)sustain development of our first new town,Tsuen Wan,drainage improvement works were carried out in Tsuen Wan and its adjacent district Kwai Chung in order to alleviate flooding impact to them.One of the major works of the drainage improvement was to lay a large diameter stormwater pipe across heavily trafficked Texaco Road which is a strategic road and houses numerous underground utilities such as gas pipes,storm and foul drains,power cables and pressurized water mains including a freshwater trunk main and an asbestos cement saltwater main.To carry out the drainage improvement works under the above site constraints while to ensure a safe and healthy working environment as well as to minimize disturbance to the residents in the neighborhood,we devised an innovative grouted jacket as a major protection measure to existing water mains for laying of stormwater pipe by trenchless construction.The grouted jacket could overcome the inadequacy of soil arching strength due to shallow soil cover,eliminate the risk of flooding the workers inside the pipe bore in case of bursting of water main,and confine the pipe jacking activities within the grouted jacket.To construct the grouted jacket,ODEX drilling method was adopted with a revised Tube-A-Manchette(TAM)grouting method.Successful completion of the grouted jacket and pipe jacking for the drainage improvement works were achieved. |
| 会议日期： | 20091028 |
| 会议举办地点： | 上海 |
| 会议名称： | 第四届中国国际隧道工程研讨会 |
| 出版日期： | 2009-10-28 |
| 母体文献： | 第四届中国国际隧道工程研讨会论文集 |
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