What is the cause of Tangxia subsidence in Guangzhou?

On June 4th, 2020, 65438+February 4th, 2020, at the intersection of Tang 'an Road and Tang De West Road in Tianhe, Guangzhou, the ground suddenly sank, and the rear half body of a concrete mud truck fell into the pit, with its front tilted and suspended in the air. The driver was not injured, but he was frightened. Drivers are also quite afraid of this kind of thing, but fortunately it's just a big earthquake. Because the sinking position is close to the living area and the hospital, the vehicle was quickly hoisted after being trapped. As for the cause of the collapse, it may be caused by soil erosion caused by sewer repair, and the collapse area is only 10 square meter. The specific reason is still unclear.

The causes of collapse are natural factors and human factors. Natural factors include earthquake, volcanic activity, climate change and in-situ stress change. Human factors are underground fluid resources (groundwater, oil, natural gas, etc.). ), solid mineral exploitation, karst collapse, etc. For example, excessive pumping of groundwater will lead to land subsidence. There are also land subsidence caused by over-exploitation of land resources, water resources and mineral resources. Land subsidence is sudden, which will bring serious danger to people's lives if they are not careful.

Land subsidence occurs frequently in Guangzhou. On June 2020 1 1, a land subsidence accident occurred in the direction of Xiafu Road, northeast of Liren, Panyu Avenue, Panyu District. At that time, when a truck full of sand was driving, the ground suddenly sank. In addition, there have been many subsidence incidents. With the over-exploitation of today's cities, land subsidence accidents have occurred in many cities. Some are due to over-exploitation of groundwater, and some are due to the failure to properly protect groundwater and soil during construction. Land subsidence is a very dangerous thing, which not only causes property losses.

It will also bring danger to people's lives. Always pay attention to the ground subsidence, do not over-exploit underground resources, and do not overload vehicles. Land subsidence is caused by many reasons, and the specific reasons should be dealt with specifically, and landfill should not be used blindly. Ground subsidence will occur along the highway, which will seriously affect people's travel safety and damage the economy, society and public opinion. Therefore, we should strengthen the engineering construction and maintenance, check the pipeline embedding in time and arrange the pipeline corridor reasonably. Before the rainy season comes every year, the government should strictly test whether the rock and soil under the highway is stable and compact it in time to prevent problems before they happen.