Abstract
In recent years, owing to advances in technology, excavation pits have shown increased improvements. Taking advantage of advanced solutions combined with traditional ones has brought about considerable advantages for construction contractors and saves on expenses to carry out construction projects. Owing to their ability to analyze geotechnical problems, several calculation and simulation software, such as Plaxis, Bentley, along with many others, have grown in popularity. Among them, Midas is one such software, which is a set of solutions developed by the MIDAS IT company and is widely applied in many constructions. The authors evaluated the ability to use Midas software to calculate the stability of a wall in a deep excavation pit for the Ho Chi Minh City Water Environment Improvement Project. The results of these researches reveal that combining soil-cement piles and steel sheet piles decreases the internal forces in sheet steel pile walls. At the same time, this solution not only reduces horizontal displacement but also keeps the settlement of the soil around the excavation pit within the permissible range, which helps to ensure that the adjacent pavements are stable and will not crack. The results of this study can be applied to similar geological constructions.
Highlights
Tunneling construction has become an indispensable trend for traffic systems by exploring underground space in modern cities
This paper presents the application of steel sheet piles combined with soil-cement piles to stabilize a deep excavation pit’s wall for the Ho Chi Minh City Water Environment Improvement Project
Simple Method The simple method is based on past cases that had produced graphs of the relationship between different factors and the horizontal displacement of the diaphragm wall
Summary
Tunneling construction has become an indispensable trend for traffic systems by exploring underground space in modern cities. It is the case, that each project has different conditions of geology, hydrography, tunnel structure, etc [11]. The drill bit is drilled down to loosen the soil until it reaches the depth of the soil layer that needs to be reinforced. The drill bit comes back and moves up. In the process of moving up, cement is grouted into the ground. This is a new technology applied in flooded areas where other types of columns do not meet the requirements. This is a new technology applied in flooded areas where other types of columns do not meet the requirements. [1,16,21]
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