Mr. Dang Tuan Anh made a research just to present the risks that are related to basements construction by top-down method with diaphragm wall for soil retaining. This is an advanced execution method and usually use for those buildings having more than two basements. However, if risks in this method were not checked carefully, it will seriously affect adjacent buildings.
The table below shows some typical problems and consequences of basements construction in Ho Chi Minh City:
With these problems, developing risk management frame in basements construction is critically important to reduce impacts on adjacent buildings. Conclusions
At present, most of the buildings in Ho Chi Minh City have basements. Therefore, risk management to reduce impact on adjacent buildings becomes more and more important. Practice shows that quite many projects caused problems during process of basement construction and create serious consequences such as damages, collapse and casualties.
From data analyses, the problems below still need to address:
The above problems are mainly due to subjective factor and lack of experience of the managers. Besides, awareness of Clients in preparing finance for risk management is one of the key issues. If the budget of risk management is not enough, plans for risk management will be limited and not efficient.Recommendations
It is necessary to have adequate finance package to cover risk management, and based on that finance, planning risk management will be studied carefully and combined from experts. In addition, advanced techniques and equipments can be used to observe, prevent and deal with incidents when they happen.
For those risks that might cause serious incidents (pierced holes on diaphragm wall, deformation of king-post system, etc), there must have strict observation and control. It is necessary to plan urgent risk-solving methods with respect to manpower, equipment and finance. Moreover, establishing good relationship with people who live around the project is also very important to have their cooperation during the process of observing and solving incidents, even temporary moving if necessary. Therefore, professional verifying teams should be combined to observe and propose solutions when problems occur. This will set surrounding people’s mind as well as local government’s mind at rest.
It is suggested to study carefully risk management frameworks whichever is suitable with each specific project to get the most efficient and which will contribute in achieving the project.
His thesis abstract is copied and posted below.
Abstract
This project report studied about risk management of basement construction affecting adjacent buildings. In the field of construction, basement construction in rural areas is one of the most risky and difficult works.
To limit risks in this issue, it is very important to study about risk identification and solving methods when preparing and constructing basements. Although many projects have risk management system, risk still occurs, even causing very serious damages.
Therefore, experience and thoughts in risk identification becomes more and more critical.
