How much is the cost of underwater foundation diving testing for Shanghai bridge pile foundation

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How much does a bridge pile underwater inspection construction company need? - Bridge underwater pile foundation inspection. Diver company. - How much does a frogman service company charge for a team

How much does a bridge pile underwater inspection construction company need? - Bridge underwater pile foundation inspection. Diver company. - How much does a frogman service company charge for a team

On August 16th, relevant departments organized professional testing units to conduct exploratory testing on the underwater pile foundations of some waterway bridges in their jurisdiction, in order to understand the impact of factors such as river water level changes, erosion, and corrosion on the pile foundations of underwater bridges.

In modern society, bridges, as important facilities connecting cities and transportation arteries, bear enormous traffic pressure and social responsibility. Due to the long-term exposure of bridges to underwater environments, they are easily affected by water flow erosion and corrosion, leading to safety hazards. To ensure the safe operation of bridges, underwater bridge inspection is particularly important. This article will introduce the role of underwater bridge inspection companies and the professional technologies they provide to ensure the safety of underwater bridges.

There are numerous major rivers in Anhui Province, including over 50000 highway bridges, more than 6600 kilometers of waterways, over 100 reservoir dams, and more than 50 ship locks. These underwater buildings are prone to erosion, cracking, damage, piping, settlement, and other diseases, as well as a series of industry difficulties and pain points such as strong concealment, high probability of disease damage, and difficult detection and maintenance.

In the 2024 Anhui Provincial Government Work Report, it was proposed that this year Anhui will "strengthen the construction of 'Anhui in water transportation', implement major projects such as the regulation of the Yangtze River and Huaihe River main and tributary waterways, and the smooth operation of inland waterways." Especially after the full trial operation of the Jianghuai Canal, Anhui has formed a new pattern of water transportation with "dual channels reaching the sea, two canals entering the river, and river sea intermodal transportation," which also provides broad space for the development of underwater detection technology.

At the scene, the "frogman" carried tools such as sonar, high-definition cameras, and underwater measuring scales to swim to the bridge pile foundation, recording in detail the location and quantity of the pile foundation's damage, and using underwater camera technology to capture images of the pile foundation, synchronously transmitting them to engineers on the shore for identification. Get closer, swim forward a bit, "the engineer also gave feedback on the side. In addition, frogmen also use sonar to measure the riverbed upstream and downstream of the bridge, and determine whether there is any displacement of the riverbed.

1、 The role of underwater bridge inspection companies

1. Safety hazard investigation: The underwater bridge inspection company conducts comprehensive inspections of various parts of the underwater bridge through professional personnel and equipment, and promptly identifies safety hazards of the bridge. If problems such as damage to the lower part of the bridge pier, failure of bridge bearings, and corrosion of steel bars are found, timely solutions should be proposed for repair to avoid safety accidents.

2. Testing the stability of underwater structures: Utilizing underwater bridge testing companiesgoodThe technical means are used to conduct stability testing on underwater structures such as bridge piers and abutments. By measuring the displacement, deformation and other parameters of the bridge, analyzing the stability of the structure, evaluating the bearing capacity of the bridge, and developing corresponding inspection reports and repair plans.

3. Corrosion protection measures: The corrosion rate of metal components of bridges in underwater environments is relatively fast, which can easily lead to a decrease in the structural strength of bridges. Underwater bridge inspection companies can evaluate and monitor the degree of corrosion of metal components through detection technology and instruments, and develop targeted corrosion protection measures to extend the service life of bridges.

2、 Underwater Bridge Inspection Technology

1. Sonar detection technology: Sonar detection technology is a method of obtaining information about underwater bridge structures through the propagation characteristics of sound waves in water. This technology can quickly and accurately obtain structural information of bridges, and carry out effective maintenance and repair on the basis of ensuring safety.

2. Laser scanning technology: Laser scanning technology obtains three-dimensional point cloud data of underwater bridges through laser scanning, thereby achieving rapid detection and evaluation of bridge structures. Laser scanning technology has the characteristics of high precision, high efficiency, and non-contact, which can accurately identify surface defects and deformations of bridges and provide data support for bridge maintenance.

3. Unmanned aerial vehicle detection technology: By loading equipment such as payloads, energy consumers, and pods onto unmanned aerial vehicles, the inspection task of underwater bridges can be achieved. Drones are flexible, convenient, have a wide coverage area, and do not require personnel to directly enter the underwater environment, greatly improving the efficiency and safety of detection.

The three bridges sampled this time have a total of 20 pile foundations, and the technical condition is basically good, with only 1 slightly damaged. However, the specific situation of each bridge still needs to be analyzed through images and other data before a 'physical examination report' can be issued for each bridge, providing accurate data support for subsequent bridge maintenance and repair, "said the person in charge of bridge inspection. Next, relevant departments will develop scientific and rational maintenance plans and disposal measures based on the inspection report to ensure the safety of road and bridge traffic.

The professional technology of underwater bridge inspection companies plays an important role in ensuring the safety of underwater bridges. By conducting safety hazard investigations, testing the stability of underwater structures, and implementing corrosion protection measures, underwater bridge inspection companies are able to promptly identify and resolve safety hazards in bridges, ensuring their normal operation. With the continuous innovation of technology and the increasing demand in the market, underwater bridge inspection companies have broad development prospects.