Direct hit the mountain torrent and smash the bridge! Heavy rains in northern India triggered flash floods, killing 100 people
Source: Hindustan Times, Indian Express Indian Express, etc.
North India's Kinnaul area has been hit by heavy rainstorms in recent days and triggered many large landslides. At present, at least 12 people have died and many people have disappeared. The video shows the process of a bridge on the local Baspa River being destroyed by a rolling stone. Authorities have issued a warning that heavy rain will continue in the coming days. Nearby villages and lower reaches of rivers, roads and bridges have entered a state of emergency.
Editor: If Western countries are our "learning from the past", then India is our "rearview mirror".
Ask yourself, are we still making the mistakes in India today? Is India’s current situation and development route comparable to our situation back then? Whether there is enough material to support systematic cross-border analysis and recognise our historical decisions in order to better make the next decision.
Indian economy is struggling to complete its original accumulation process. The country's infrastructure is still in the early stage of reconstruction and light maintenance, and is also moving forward with China. But the editor wants to say that the right way in the world is vicissitudes, and there is also a process of "revising ideals" between building and maintaining bridges. In fact, it is useless to touch anyone. You have to touch your own national conditions and the main contradictions in society so that you will not go astray.
Steps and moves from scratch! 1/10 There are structural defects in German bridges
▲ The cost of roads and bridges in Germany has been rising year by year
Source: German Federal Statistics Office Statisticsches Bundesamt et al
htmlOn July 26, the German Federal Statistics Office released a series of data on the condition and maintenance costs of bridges in the country. More than one-tenth of German bridges have structural defects. Although the government's expenditure on road and bridge projects has increased by 40% in the past decade, it can only barely cope with the rise in domestic inflation and 24% of the cost of road and bridge construction.
European industry media said that German infrastructure "has returned to the level of European quasi-first-class countries."
Editor: As a banner of developed industrial countries, Germany is also difficult to withstand the pressure brought by "bridge aging". Inadequate investment will inevitably aggravate the uneven allocation of maintenance resources, which will lead to high structural risks for the "weak" bridge groups. China's infrastructure construction starts later, and we should expand our horizons and relax our horizons, fully calculate the "total fund for the maintenance of the total life of the total bridge stock" and make reasonable plans.
Survey misplaced! Bangladesh Engineers bluntly talk about the disadvantages of bridges in the Three Kingdoms of South Asia
Source: Himalayan
India, Nepal , Bangladesh The three countries have frequent bridge accidents, and local engineers recently published an article bluntly saying that regional bridge design is indiscriminate.
"The small survey budget and too short design period are the core issues. Secondly, without strict supervision and consultation, there are often low-quality bridge design plans, and even obvious errors are made. Then bidding, procurement and construction are carried out according to this plan, and the result is doomed to fail, causing an extremely high economic cost, and creating an atmosphere of fear of bridges in society."
Take Nepal as an example. There are 250 bridge projects led by the state alone every year; the number of projects led by local governments has doubled. From 2017 to 2021 alone, at least 50 bridges had accidents due to design reasons, and most of them collapsed during construction or as soon as they were completed.
Therefore, it is necessary to thoroughly study the climatic hydrology, topography, geotechnical conditions, existing roads, environmental ecology and other issues of the bridge site selection location. However, financial tightness, lack of knowledge, and insufficient peer review all limit the quality of development.
Editor: The biggest challenge in infrastructure construction in South Asia is concentration of precipitation, complex geology and diverting rivers.Therefore, the quality of the preliminary geotechnical engineering survey is particularly challenging.
The editor has tracked the collapse of bridges abroad in recent years. The bridge age in developing countries is generally not long. The main reason for the collapse is survey and design defects. Construction is basically compliant and there is little cutting corners, which is closely related to the full-process consulting system of South Asian countries. The editor will discuss this issue in journals such as Bridge magazine, so stay tuned.
I don’t know if I don’t check it! The damage to the Cleveland Bridge in Bath City, England exceeded expectations!
Source: Bath Echo
Cleveland Bridge is located in the north of Bath, southwest of the United Kingdom. It was built in 1830 and has now been changed from a cast iron arch bridge to a concrete arch bridge. The weight limit is 18 tons, which is an important channel connecting the city's M4 highway, with a daily traffic volume of nearly 20,000.
html During the inspection in late July, it was found that the concrete truss supporting the bridge deck was much more severely damaged than expected. Overhaul has been arranged, and the first phase of the project costs at least £3.5 million.
Editor: The disease is in the skin and can be cured. If the disease enters the bone marrow, it will be too late to regret it.
West African Corridor! Cameroon -Nigeria Border to build a new bridge
▲ Cross River New bridge
▲ Cross River Old bridge, single-lane steel suspension bridge in 1950
Source: Nigeria Federal Ministry of Engineering Federal Ministry of Works of Nigeria
Cross River (Cross) The River) is about to be completed. Replace the current old single-lane suspension bridge with a new bridge.
The total length of the new bridge is 403 meters, a six-span continuous concrete box girder bridge, with a span layout of 35+150+85+50+50+31, adopts European regulations, and is cost 36 million US dollars. It is funded by the African Development Fund (FAD), and is involved in the construction of China National Overseas Group. It is authorized in 2018 and is expected to be opened to traffic in October 2021.
Nigerian government intends to strengthen the coordination of coastal transportation infrastructure with West Africa countries, hoping to continue to extend to the east and west sides with the bridge as the basis point, forming a major artery in the coastal areas of West Africa, and later connect to Mombasa on the east coast of Africa.
Editor: The Nigerian government attaches great importance to bridge infrastructure and reform actions are frequently made. Its domestic oil and mineral resources are rich, with a population of over 200 million, and has relatively developed core cities. As long as infrastructure is taken seriously, it is just around the corner.
Brief news:
Croatian . After three years of hard work, the Peresaks Cross-Sea Bridge successfully joined the dragon on July 28, 2021 local time. The "enclave" Dubrovnik will connect to the Croatian mainland through the bridge. It is expected to be opened to traffic in June 2022.
United States. The Mississippi River Bridge (also known as the Hernando de Soto Bridge) was found to have broken steel beams since May 11 and reopened on August 6. The accident analysis and accountability work will continue.
Bangladesh. The Padma Bridge crash was handled and officials said the bridge could withstand 4,000 tons, with the impact of 1,400 tons and the bridge was not damaged.
South Africa. Hex River Bridge repairs have been completed and reopened. The waterproof guardrail of the bridge pier is the focus of the update.
Germany. The renovation of the new Mühlendamm bridge in Berlin was completed, with the original 6 lanes being changed to 4 lanes, and two tram lines were added to connect Potsdamer Platz and the Halles Gate.
