Jiuzhaigou spark sea has burst the embankment, how is it restored?

Since September 27, 2019, 85% of the Jiuzhaigou Scenic Area has been reopened to the outside world, but the sea of sparks has not been opened. Recently, according to the latest news from the Jiuzhaigou Administration, the Jiuzhaigou Spark Sea Scenic Spot will be reopened before the National Day. During the peak of the eight-day holiday of the Mid-Autumn Festival on the National Day, this news is very exciting for our little friends, and there are no friends who want to travel to Jiuzhaigou to go to the beautiful scenery of the Spark Sea.

Located in Jiuzhaigou County, Aba Prefecture, Sichuan Province, Spark Sea is one of the most beautiful landscapes in Jiuzhaigou. On August 8, 2017, after the occurrence of the Jiuzhaigou level**, the spark sea lake burst its embankment, and the lake landscape disappeared for a time. After a series of reconstructions of Jiuzhaigou, on March 8, 2018, some scenic spots in Jiuzhaigou began to open to tourists.

Based on factors such as the fact that the Spark Sea is an important world natural heritage site, the relevant local organizations decided to carry out environmental monitoring and evaluation and vegetation ecological restoration of the Jiuzhaigou Spark Sea from April 2019.

However, for the reconstruction of a scenic spot is a rather arduous project, which requires the builder to have a clear understanding of the perennial geological disasters in the scenic spot, the changes in the geological environment in recent years, the changes in the groundwater circulation system, etc., and finally take the principle of "natural restoration as the mainstay, supplemented by artificial intervention" as the guide, establish the protection measures of the core landscape, and carry out all-round and multi-faceted comprehensive protection and governance of the scenic spot.

According to the person in charge of the relevant project, the restoration and restoration of the spark sea uses glutinous rice mortar, earthquake travertine and collapsed rockfall as the main raw materials, and adopts various professional technologies to prevent the damage of secondary disasters to the scenic spot, and restores the dam body and vegetation damaged by the first one, and the restoration has achieved good disaster prevention and mitigation effects on the original basis. To the greatest extent, the impact of natural disasters on the scenic spot is minimized. In the flood disaster in Jiuzhaigou County in August this year, the dam body repaired by Spark Sea remained stable and was not damaged or destroyed by the flood disaster, which shows the correctness and effectiveness of the restoration work.

Finally, welcome all friends to Jiuzhaigou Spark Sea to watch.

The team of experts restored the sea of sparks, focusing on natural restoration, supplemented by manual intervention, without destroying any natural scenery.

The site where the embankment had previously burst was reinforced, and the plants were replanted. After a period of redevelopment, it will naturally be able to recover.

In Jiuzhaigou**, which occurred on August 8, 2017, the spark sea lake burst its embankment, and the lake landscape disappeared for a while. Based on the comprehensive consideration of protecting the safety of local residents' lives and property and the world's natural heritage, the local government has organized experts to conduct on-site surveys and scientific demonstrations of the earthquake damage area of the Spark Sea for many times, and set up a project team to deal with the secondary disasters. The project team formulated a technical plan for the restoration of glutinous rice mortar, earthquake-damaged travertine and collapsed rockfall as the main raw materials, and used vibro gravel piles and bamboo bolts to plant reinforcement and other technologies to deal with secondary disasters, restore the earthquake-damaged dam body and vegetation ecology, and achieve good disaster prevention and mitigation.

Previously, because Jiuzhaigou here suffered some self-heating disasters, resulting in this scenic spot has been recovering, today I learned a news, that is, Jiuzhaigou spark sea here is about to open to everyone, to recover! Let's take a brief look at the specific information!

Recently, the World Natural Heritage Site Spark Sea Protection and Cultivation Experimental Research Project Phased Review Meeting was held in Jiuzhaigou, the participating experts visited the Spark Sea site, listened to the project undertaking unit Professor Pei Xiangjun of Chengdu University of Technology report, and agreed that the project has achieved the expected disaster prevention and mitigation effect. In particular, in August this year, Jiuzhaigou County experienced the largest flood disaster in 100 years, and the flood control emergency response was upgraded to a level. Affected by continuous rainfall, Jiuzhaigou County suffered from floods, and landslides, landslides, road waterlogging, ditches became dangerous gullies, and low-lying areas became quagmires. Roads became rivers and houses were washed away.

The restoration of the dam body of Spark Sea remained stable and played an effective role in regulation and control, which was fully affirmed by the experts attending the meeting.

On August 8, 2017, the sea of sparks burst the embankment in the Jiuzhaigou level, forming a breach 40 meters long, 12 meters wide and 15 meters high, and the lake landscape disappeared. Affected by this, secondary disasters such as cracks and collapses of cascading waterfall dams in the upper reaches of the Spark Sea have developed, and the risk of lake outburst has increased, seriously threatening the life and property safety of local residents and tourists. The travertine at the bottom of the lake collapsed, weathered, desertified, blackened, and seriously degraded; The siltation of the lakes in the lower reaches and the obvious trend of swamping have seriously affected the aesthetic value of the heritage site.

In April 2019, Chengdu University of Technology was officially identified as the lead unit for the implementation of the project, and Sichuan University and Sichuan Agricultural University were responsible for the environmental monitoring and evaluation of the project and vegetation ecological restoration.

Guided by the principle of "natural restoration as the mainstay, supplemented by manual intervention", the Jiuzhaigou Administration Bureau and the project team have formulated a restoration and restoration technical plan with glutinous rice mortar, earthquake-damaged travertine, collapse and rockfall as the main raw materials, which has been positively affirmed by the UNESCO World Heritage Center and the World Nature Conservation Alliance. According to the implementation mode of "scientific research experiment, scientific monitoring, and popular science education", the secondary disasters were dealt with by using technologies such as vibroscopic gravel piles and bamboo bolt reinforcement planting, and the earthquake damage dam body and vegetation ecology were restored.

Sichuan Jiuzhaigou Spark Sea disaster control is completed and will be opened on the eve of the National Day.

CCTV news client.

Although this Jiuzhaigou spark sea is about to be restored, and the ecological environment is also restored, if you go here, you still have to pay attention to it and pay attention to protecting the environment here!

Yes, the reporter learned from the Sichuan Jiuzhaigou Scenic Area Administration that recently, experts have identified the experimental research project on the protection and cultivation of the Zhenghuahai in the world natural heritage siteAchieve the expected effect of disaster prevention and mitigation, the attractionIt will be reopened before the National Day

Spark Sea is located in Jiuzhaigou County, Aba Prefecture, Sichuan Province, with an altitude of 2,187 meters and a depth of 9 meters. In Jiuzhaigou** that occurred on August 8, 2017, the lake of the scenic spot burst its embankment, forming a breach with a length of 40 meters, a width of 12 meters and a height of 15 meters. In addition, the development of secondary disasters such as cracks and collapses of cascading waterfall dams in the upper reaches of the Spark Sea has increased the risk of lake outbursts, which seriously threatens the lives and property safety of local residents and tourists.

In April 2019, Chengdu University of Technology was identified as the lead unit for the implementation of the protection project, and Sichuan University and Sichuan Agricultural University were the participating units, respectively responsible for the environmental monitoring and evaluation of the project and the ecological restoration of vegetation.

On August 8, 2017, the sea of sparks burst the embankment in the Jiuzhaigou level, forming a breach 40 meters long, 12 meters wide and 15 meters high, and the lake landscape disappeared. Based on comprehensive considerations such as the protection of world heritageThe Jiuzhaigou Administration Bureau has organized experts to conduct on-site surveys, scientific demonstrations and scheme comparisons in the spark sea earthquake damage area for many timesIn the end, it was decided to adopt the principle of "natural restoration as the mainstay, supplemented by artificial intervention" as the guide, and carry out closed conservation and restoration management of the Spark Sea

On September 26, 2020, according to the Jiuzhaigou Administration Bureau of Aba Prefecture, Sichuan, the well-known scenic spot Spark Sea will open on the eve of the National Day.