HCM “struggling” to find solutions against flooding

After the battle the prolonged heavy rain and tide, HCM is still 50-60 points flooded should the search for effective solutions is very difficult.

Each year, HCM invests thousands billion for the work against flooding. Against flooding as well as 1 in 7 breakthrough program was proposed in the resolution of the Congress Party, of the city term 2015-2020. In it, technology solutions are put on top of this work. So HCM should apply technology to combat the flooding effect in the current situation?

HCM is entering the end of the rainy season. According to the forecast, from now until the end of 2015, the city will inspired a wave of the tide on the 3rd alarm. After the battle the prolonged heavy rain and tide, the whole city is still 50-60 points.

Drain stop North Korea, a submerged solutions for Saigon

Also after the rain and the waves of the tide that, more than 10 points from the previous year’s often awash in district 8 is now no longer. It is the efficiency of control systems the Court in Ward 7 and ward 16 of this county when it was put into use in April. The two above projects contribute to resolve the flooding situation for about 25,000 households and more than 10 points, lower basin in this area.

In addition to the main category is buttressing prevent North Korea, drain prevents the Court, this works also extend, enhance and unpaved alleys, facilitate traffic and improve environmental pollution in district 8.

Le Quynh, Deputy Chairman of district 8, HO CHI MINH CITY said: the mechanism of action of this dynasty pane tribute is the tide when the water level is just up to 0, 6 m fine is automatically closed, prevents water back. When the water from the Ship Channel and channel Buffer into the Market, the boot, the embankment prevents the Court has the effect of preventing the tide water overflow into the settlement. If the rain water from the inside out, it has a one-way valve, water only in in out right outside does not spill into it.

A solution consistent with the characteristics of the terrain, HO CHI MINH CITY currently is using technology to close CU UPVC to prevent avalanche, tide, breaking the banks covered, attenuated. Technology and equipment for production lines for CU a modern UPVC production from Europe-parallel twin screw extrusion lines for Argos of the Republic of Austria was Saigon industry Corporation apply.

A section of dikes by CU Linh ward at East UPVC, Thu Duc district, HO CHI MINH CITY

CU UPVC can execute easily in all weather conditions, in a variety of terrain with simple equipment. UPVC materials with environmental sustainability, withstand salty alum, chemicals, water, water pollution, prevent effective water seep through the banks do damage. With this material, every year the city not costly maintenance, reinforced the works using traditional materials.

Mr. Chu Tien Dung, General Director of Saigon industry Corporation said: according to the current design, the top of the hat beams the UPVC piles in embankment height 2, 2 m. The Summit of the tide on the Saigon River is currently the highest 1, 68m does not affect the safety of the works. On stability, the sustainability of this process we believe is not what obstacles.

Professor-Dr. Nguyen States Feng, Deputy Director of the Department of science and technology in HO CHI MINH CITY said that the city planned to reduce regulatory Lake flooding is necessary, but the need to observe with more realistic. In terms of city funds are limited, we need to know where would be able to build the indoor conditions. This work should be the consensus of the people and the local authorities.

To reduce flooding in the municipality, the problem of how to rainfall infiltration. Currently, all of the city’s sidewalks are paved. Concrete road has nodded, but concrete sidewalks turned off is not science. The city should replace the concrete type, the type of ceramic tiles worm can seep to be rain water. This is not difficult for HCM.

Also according to associate professor, Dr. Ho Long Phi, Director of the Center for water and climate change in National University of HCMC, anti-flooding work for city need some application technology solutions of advanced countries. There are a number of new technologies such as: Do the drain mechanism barges, making the drain stop North Korea technology catches dam or apply new technology does not need to lead the construction line, no need for clearance.

In some new areas, HCM can apply the SPR technology in Japan, improving the underground drainage system does not need to dig the road: “currently, I’m at the stage of a series of new items in the downtown area. We need a table to the story development in suburban areas. I think that, from 2020 to 2030 if we develop about 400 km 2 conservation in suburban areas at the time, then I hope we have enough knowledge and experience to develop this sustainable areas without being flooded “.

The flooding of the city essentially solve 2 problems: Preventing the water from draining outside and from the inside out. In other words, the anti-flooding due to heavy rain and flooding prevention due to the tide. The fight against flooding from the outside is not too difficult but requires big investment. Private work against flooding due to intrinsic factors of the city are many problems need to be solved.

First of all, the city should review the entire drainage system to have the planning and follow a uniform orientation. Besides, the work of forecasting, flooding the city’s warning should be made better to both the Government and the people of the city proactively implement response measures according to their actual circumstances./.

 The Central/VOV-HCM