News from our newspaper (Zhang Lianhai, Yu Libin, Sun Jiying) In late autumn, a research institute of the Naval Academy successfully organized an underwater explosion test against a high-piled wharf in a military port.
By simulating an attack on the enemy's high-piled wharf, a large amount of explosion damage data under actual combat conditions has been obtained, which provides strong support for battlefield decision-making in wartime.
At 10 o'clock in the morning, with a loud noise, an underwater explosive detonated smoothly at a reinforced concrete dock the size of a basketball court.
Under the impact of a strong explosion, the test wharf was completely destroyed.
In this test, hundreds of high-sensitivity sensors were pre-installed in various important parts of the wharf, so that nearly a thousand scientific research data generated at the moment of the explosion were transmitted back to the test background in real time.
Through comprehensive analysis of various data, scientific researchers can accurately obtain the structural changes and damage patterns of the wharf, thereby providing a scientific basis for accurately attacking the enemy's military port wharf in wartime.
The base port terminal is an important hub of the modern naval warfare system, and the logistics supply troops must frequently travel between the base port and the front line to transport ammunition, oil and other supplies.
If the enemy's military port can be destroyed by concealed means such as underwater explosions, its war potential can be wiped out invisible.
"The special structure of the high-piled wharf has always been a problem in battlefield damage. In the past, we had insufficient understanding of the target characteristics and damage laws of typical hydraulic structures, and ignored the attention to wharf targets. As our military's comprehensive strength has greatly increased To adjust to actual combat military needs, we organized the first high-piled wharf explosion damage test in China," said Zhao Pengduo, deputy leader of the experimental research team.
Before the start of the test, electric measurement, optical measurement, pyrotechnics operation, command and other positions were carried out respectively to deploy wave height optical measurement system, strain sensor embedded, explosive source ammunition installation, signal data collection, wiring data debugging, etc., to ensure the test Smooth and safe implementation.
In order to simulate the damage effect of weapon attacks on various types of terminals in the actual combat environment to the maximum, the research team conducted full research and demonstration on factors such as explosion equivalent and explosion source distance, simulated and combined a variety of attack scenarios, and verified them one by one in the experiment. .
According to experts, considering natural conditions, operating requirements, and construction conditions, modern wharves usually adopt three structures: gravity, high-pile, and sheet-pile.
The high-piled wharf is composed of foundation piles driven into the soil and a superstructure above the water surface, and is often used for soft soil foundations suitable for pile sinking.
Its air-permeable structure can effectively reduce the continuous impact and damage of waves and currents on the plane of the wharf, and can also minimize the degree of siltation of the wharf.
According to Liu Haiyan, the commander-in-chief of the test site, by simulating the scene of an attack on the enemy's wharf during wartime, it can realistically evaluate the damage effects of different weapons, blast range and other factors on the wharf.
"The large amount of data accumulated in the experiment can support the combat application of what kind of weapon to use, how to fight, and where to fight against the enemy's dock under actual conditions. The relevant conclusions can effectively serve the scientific decision-making on the battlefield."
Source: China Youth Daily