Mine integration: Xuzhou practice of transformation and upgrading of mining city

This is a coal city with a glorious history and prosperity due to coal . Over 100 years of high-intensity mining has made the city scarred. The “black hole” is everywhere, and it has been hailed as “one city coal ash and half city”. This is an emerging city that dares to try first and vigorously. In recent years, it has continued to promote the integration of mineral resources, which has transformed the city into a “land of mountains and lakes”.

This city is located in the northern part of Jiangsu Province, with a cumulative mining of about 1 billion tons of coal, making Xuzhou an important contribution to the overall development of the province and the country.

Appearance tournament "Golden Jade", the connotation is more attractive. On the occasion of the 27th National “Land Day”, the China Mining News reporter followed the “Focus on the Integration of Ecological Land and Minerals” and went to Xuzhou to surprise that the original coal mining collapsed and the birds and flowers were fragrant. It is a good place for leisure and entertainment; the once-weed mining wasteland has become a high-yield field where farmers get rich and get rid of poverty, or become a high-tech industrial park of “Jinjin Fighting Gold”.

As the only old industrial base and resource-exhausted city in Jiangsu Province, in the face of the depletion of resources, the deterioration of the ecological environment, and the single industrial structure, what is the secret of Xuzhou's transformation? From the "ugly duckling" that has seen people in the past, to What is the source of the butterfly change in Xuzhou now?

As an advocate and practitioner of mine integration, and witnessed the revolutionary Xuzhou City Land and Resources Bureau Director Li Gang broke the words: "Good ecological environment is green productivity. This is our adherence to the concept of green development, combined With its own resource endowment and potential advantages, it aims to optimize the land development pattern and scientifically allocate land resources, focus on ecological land construction, innovate and promote the integration of mineral resources, and give full play to the important supporting role of land and resources management in the construction of ecological civilization.

Mineral integration: creating an ecological capital

Blue waves, grass, pavilions. Walking into the Pan'an Wetland Park in Jiawang District, it seems to be the ancient town of Nanguo. Who would have thought that a few years ago, the area with the most serious and large-scale coal mining collapse in Xuzhou was once a swamp with all over the pits, grasses and sewage.

“There is a total of 17,400 mu of land in the collapsed area. It is the largest comprehensive project for coal mining subsidence in Jiangsu Province since the founding of New China. The total investment is 171 million yuan, using 'basic farmland reconstruction, coal mining subsidence land reclamation, ecological environment The four-in-one model of restoration and wetland landscape development not only created a landmark project for the treatment of coal mining subsidence in the country, but also provided a model for the restoration and reconstruction of the resource-exhausted urban ecological environment.” Wang Zhigang, member of the party group of Jiayu District Land Resources Bureau It is said that on the basis of rectification of the subsidence area, the construction project of Pan'an Lake Wetland Park was implemented in 2011. At present, the entire wetland park has developed a water system that constitutes a natural water circulation system, forming an ecological pattern of 4,000 mu of lake surface and 1,000 mu of wetland.

This is just a microcosm of Xuzhou City's promotion of mineral integration and the creation of an ecological capital in recent years.

As the only coal base and resource-exhausted city in Jiangsu Province, Xuzhou's coalfield has an area of ​​1,400 square kilometers, accounting for about 12% of the city's land area. The city has collapsed 400,000 mu of coal, involving 6 (county) districts, 28 townships (offices), 183 villages, and more than 400,000 people.

The development of the coal industry not only allowed Xuzhou to enjoy the prosperity of “Huadong Coal Capital” at the peak of the coal industry, but also let Xuzhou taste the pain of “mine failure” when the coal fell. Dirty, gray, dark, a city of coal ash and half city, this is the deep impression that Xuzhou once left. Facing the 400,000 mu coal mining subsidence site, Li Gang, the only doctoral tutor in China, said with painstaking words: "This is a global scar and a black hole in the city, which is incompatible with the current development concept!"

“Insist on the integration of mines, focus on controlling coal mining subsidence areas, make up for historical debts, and make up the short-term ecological environment of Xuzhou!” Xuzhou Municipal Bureau of Land and Resources, with the support of Xuzhou Municipal Committee, Municipal Government and superior land and resources departments, pull The prelude to declare war on the city black hole.

Strengthen rectification and investigate first. The Xuzhou Municipal Bureau of Land and Resources cooperated with the Jiangsu Provincial Department of Land and Resources to give full play to scientific research advantages and complete a comprehensive survey of coal mining subsidence areas in 37 major coal mines in the city, and to identify 378,300 mu of coal mining subsidence, of which the area of ​​subsidence depth greater than 1.5 meters was as high as 22.56. Ten thousand acres.

"In order to manage this 'ecological scar", we have adhered to the combination of subsidence land management and ecological restoration for the shape, soil type, stratum structure, stability degree, and water depth of the subsidence land, and to carry out classification and utilization. Actively build an ecological restoration demonstration zone, gradually transform the subsidence land into a unique development resource, and change the historical burden into a potential development space," said Chen Jianhua, deputy director of the Xuzhou Municipal Bureau of Land and Resources.

According to statistics, in recent years, the city has invested a total of 2.46 billion yuan, and has carried out ecological restoration on 96,500 mu of coal mining subsidence sites, and completed a number of major ecological reconstruction projects such as Shanghu, Jiulihu, Pan'an Lake and Anguo Wetland. The subsidence area has become a cultivated land and ecological function zone, and has achieved remarkable social, economic and ecological benefits. In March 2014, CCTV’s “Light of Science and Technology” broadcast a large-scale documentary “The Black Hole” that disappeared. In November of the same year, the headline of People’s Daily published the title of “One City, Qingshan, Half City Lake”. The ecological construction of Xuzhou City and the comprehensive management of coal mining subsidence were reported.

"It turned out that here is a piece of ocean, the environment is bad, and the road to the village is also pitted. Through the construction of wetlands, the ecological environment is now good, the air is fresh, and the people nearby and the people around them often come here to play." Qinling, a villager in Zhoutian Village, Anguo Town, said excitedly when he talked about Anguo Wetland Park.

Mine integration: the difficulty of cracking development

The shortage of cultivated land resources, insufficient reserve resources, and large gaps in construction land have become a major problem affecting local economic development in recent years. At the same time, the mining cities have a large number of subsided land and industrial and mining wasteland, which has destroyed the ecological environment and become a stumbling block to economic development.

How to revitalize this stock resource of mining cities, turn "burden" into "wealth", provide more space and more kinetic energy for urban transformation and upgrading of green development, and become a difficult problem to be solved at all levels of land and resources departments.

"Only the integration of mining and land administration, top-level design, overall development, and joint promotion can transform the 'dilemma' into a 'win-win'." Li Gang, with strategic thinking and forward-looking vision, combines the Ministry of Land and Resources with the Huaihai Economic Zone. The scientific research base and the demonstration base of the Sino-German Energy and Mining Area Ecological Research Center will aim at “reasonably exploiting coal resources, efficiently utilizing land resources and effectively protecting water resources”, through coordinated utilization of coal resources, land resources and water resources. The research on protection and management technology has created a new concept of “mineral integration” resource management.

"Mineral integration mainly includes the overall management of mining, land and resources, the coordinated utilization of mineral resources, and the coordinated development of urban and mining towns." Li Gang said that the overall utilization is based on the requirements of ecological civilization construction and sustainable development of mining areas. Integrated information system integration function, comprehensively consider mining rights setting, development and utilization and land resource use in time and space, scientific planning, rational arrangement, orderly development and utilization of mineral resources and land resources, and solving resource-based urban resources Development and utilization of environmental pollution, soil erosion, land destruction and other issues to achieve ecological reconstruction of the mining area and sustainable use of land. The overall development of the mining area is to fully consider the homogeneity of above-ground and underground resources. Through comprehensive planning and overall management of mineral and land resources development and utilization, comprehensive use of green mining technology, spatial information technology, land reclamation and ecological restoration technology, industrial and mining Waste land reuse technology and land-related reform policies and other means to promote comprehensive land consolidation in new and historically-remaining mining areas, improve resource conservation and intensive use, timely reclamation and remediation of land subsidence and ecological environment damage, and jointly plan new villages and towns, Rationally implement village relocation, strengthen the protection of cultivated land and the construction of high-standard basic farmland, and optimize the layout of cultivated land and basic farmland. The overall development of urban, mining and township is the land use mode of the innovative goaf. According to the positional relationship between the boundary of the goaf and the land used for urban construction, the requirements for the relocation of the village in the mining plan are combined with the new urbanization and new rural construction. Effectively regulate and guide, promote the coordinated development of mineral resources and land resources, and realize a new model of resource-based urban development in coal mining, ecological restoration and urban, mining and township planning.

In the production-type mining area, Xuzhou City mainly conducts mineral and land resource surveys according to the sustainable development requirements of the mining area, builds a “mineral integration” database and a comprehensive supervision information platform, and comprehensively promotes new construction and historical legacy by preparing the land area planning of the mining area. Comprehensive improvement of mining land, promote intensive use of land resources and efficient mining of mineral resources, and guide mining cities to the new urbanization road of integrated development of cities, mines and townships. The city attaches great importance to technological innovation and relies on the China University of Mining and Technology, Jiangsu Province Old Industrial Base Resource Utilization and Ecological Restoration Innovation Center, Sino-German Energy and Mining Area Ecological Research Center and Xuzhou Ecological Civilization Construction Research Institute to establish mining damage in coal mining areas. The real-time prediction model and predictive parameter system, to achieve mining damage prediction and land resource damage advance warning, provide an important reference for land use spatial layout and mining resource exploitation and utilization based on land use constraints.

At the same time, Xuzhou combines the needs of land resource utilization in the mining area, coordinates the development and protection of mineral resources and land use, and studies the relationship between coal resource development and land resource utilization from the perspective of time and space coordination, and develops Peibei industrial planning, mineral resource planning, and land use. The “multi-regulation integration” study of the overall planning and relocation plan of coal-removing villages will optimize the layout of construction land, maximize the comprehensive benefits of land use, promote the coordinated development of regional economy, promote the transformation of resource-rich cities into economically strong cities, and compete in urban core competition. The power has improved significantly.

Peibei integration is a typical implementation model for the production of mining areas in the city. The northern part of Pei County is the main part of Xuzhou coalfield. There are 8 production mines in the area. There are 5,074 hectares of subsided land with different degrees of subsidence, 2,400 hectares with a subsidence of more than 1.5 meters, and 2,067 hectares with a subsidence of 1 to 1.5 meters. There are 607 hectares of subsidence below 1 meter. According to the mine mining plan, it is predicted that in 2020, 5,659 hectares of land will be collapsed, and in the year 2035 (that is, when coal resources are depleted), 17842 hectares of land will be collapsed.

In 2014, Xuzhou City incorporated the development of “Peibei Integration” into the city-level strategic development goal, encouraging and supporting Peibei to develop a demonstration new road of “regional integration” and “mineral integration” to “reasonable mining”. With the goal of “coal resources, efficient use of land resources and effective protection of water resources”, through the research on the coordinated utilization, protection and management technologies of coal resources, land resources and water resources, the “Xizhou “Peibei Integration” and the coordination of mines have been compiled. Implementation Plan. According to the plan and the land use planning of the Yellow River's old road basin area, 7 towns within the drainage channel of the Yellow River in Pei County are expected to add 60,000 mu of cultivated land in 2020, including 36,000 mu of industrial and mining villages and 18,000 mu of agricultural land, and unused land. Organizing 0.6 million mu, in 2030, 7 towns are expected to add 119,000 mu of cultivated land, including 89,000 mu of industrial and mining villages, 20,000 mu of agricultural land, and 10,000 mu of unused land.

Han Fangyi, deputy director of Pei County Land and Resources Bureau, said that by implementing the reclamation of industrial and mining wasteland and the reclamation project of coal mining subsidence area, 22,100 mu of cultivated land was newly added, which effectively guaranteed the demand for construction land.

The city also made full use of industrial and mining abandoned land such as Industrial Square, and promoted Xuzhou Mining Group Co., Ltd. and the Rheinland City Planning and Design Group to sign the "Oriental Ruhr Cultural and Ecological Industrial Park Project Cooperation Framework Agreement", using the closed original power station coal industry The square, taking the transformation of the Ruhr Park in Germany as a sample, plans to develop cultural creativity and old-age health and other industries according to local conditions, and build an “Oriental Ruhr” ecological demonstration zone. The project covers an area of ​​1,120 mu, with a planned investment of 2.2 billion yuan to recreate natural ecology and human landscape.

At the same time, Xuzhou City has comprehensively carried out the construction and utilization of the goaf. The Quanshan Economic Development Zone, which has risen from the subsidence area, is a model for the transformation and upgrading of the mining city and the subsidence area in the mining city of Xuzhou. The development zone introduced 15 major industrial and functional projects of 300 million yuan including Xuzhou Integrated Logistics Park Project, General Aviation Manufacturing Industrial Park Project, Yongning Automobile Expo Park Project, Yongri Elevator and CITIC Heavy Industry Special Robot in the goaf. There are 7 enterprises with a total investment of 20.6 billion yuan and 17,400 new jobs. In addition, Xugong, GCL and other enterprises use the coal mining subsidence area to build an industrial industrial park, and the backward production capacity is the environmental protection and renewable energy industry; all the chemical enterprises in the Gulou District have moved into the Jiawang coal goaf to solve the urban retreat. The problem of land relocation and resettlement for enterprises.

According to statistics, in recent years, the city has implemented a total of 285 industrial and mining wasteland reclamation projects, with a total scale of 33,900 mu, which has become a region with large area of ​​reclaimed land for industrial and mining wasteland, leading technology and remarkable results. Abandoned land of 58,000 mu, ecological restoration of 42 253 hectares of quarry stone in the city, and the construction of the first Zhukoukou Park in the country - Dongzhushan Jiaokou Park, which was identified as the urban mine management model project by the Ministry of Land and Resources.

"We combine urban and rural integration construction and mineral land development, innovative planning concepts, improve planning methods, integrate people-oriented, respect for nature, inheritance history, green and low carbon into the whole process of urban planning, and actively promote economic and social development planning, urban and rural development. Planning, land use planning, ecological environmental protection planning, mineral development planning, etc. to achieve 'one map' multi-regulation, not only effectively improve the ecological environment, but also alleviate the contradiction of urban construction land shortage, providing a new transformation for mining cities Space and kinetic energy," Li Gang said.

Mineral land integration: building a harmonious foundation

Xuzhou's mine integration model not only realizes the coordination between man and nature, but also interprets the new concept of green development. It also realizes the harmony of mines and explores a road to precision poverty alleviation with a harmonious and prosperous group.

The abandoned industrial and mining area of ​​Chenzhou City covers an area of ​​more than 6,168 mu. By reclaiming these abandoned land and linking it with new construction land, revitalizing and rationally adjusting the construction land not only ensures that the total construction land in the city does not increase, and the cultivated land area does not decrease. The quality has improved, and it has also promoted the poverty alleviation of local villagers.

From 2011 to 2015, the city's Chefushan Town will control the quarry of Cheqian Village and other villages, increase the high-standard cultivated land by 1116 mu, and realize the annual income of more than 1.6 million yuan; the mining wasteland of Yushan Village of Zouzhuang Town passed the treatment, new Increase the standard agricultural land by nearly 100 acres.

Zhang Yanzeng, a villager in Cheqian Village, pointed at the corn that had been half-many and said with a smile: "There are all small and uneven land in the middle of the country. The annual contract fee is 30 yuan per mu. Now, although the contracted land per mu is increased every year. 360 yuan, but the quality of the land has improved, and the machine can be harvested, and the income is much higher than before."

"I contracted 30 mu, and I could collect 1100 kg of wheat and 1000 kg of corn per mu per year. I can earn tens of thousands of yuan per year, which is much better than going out to work." Zhang Yanzeng said happily.

Yo Town Zou village villager Zhang Xiu also abandoned silver mining reclamation of beneficiaries. Before planting the cultivated land of peanuts and soybeans, he said deeply: "It turned out to be a waste rock pit that was not born in the grass. After the treatment, I contracted 20 mu, and the annual contract fee was 200 yuan per mu. The annual net economic income reached 30,000 yuan."

Compared with those villagers who have relied on the remediation of industrial and mining wasteland, some villagers such as Yangshuo Township in Pei County have developed through the integration of Peibei, and have begun to live a well-off life in high-rise buildings and factories.

“We have significantly improved the quality of life of more than 5,000 villagers through the overall relocation and staying in the new village, and achieved harmony and prosperity. The community is fully equipped, opposite the school, and there are industrial parks nearby, and the villagers have become workers.” Yangshuo New Village Lu Zhongzhong, secretary of the Party branch, said with emotion.

Yang Yuzhen, the mayor of Yangxu Town, took the finger and gave the account to the reporter: "Through the integration of the mines, the implementation of the 'Peibei integration' development strategy, actively guide the population to the town area, the residential area to the community, industry Concentration to the development zone. The relocation of the new town area involves a population of 27,500 people, saving 3,396 mu of land, replacing 5,096 mu of land for construction of small towns. The planned area of ​​industrial concentration areas is 2.27 square kilometers, and more than 30 enterprises have been settled, and employment personnel are arranged. More than 5,000 people. In 2016, the industrial invoice sales revenue reached 3.2 billion yuan, which promoted the common prosperity of the mines and realized the 'double improvement' of saving land and increasing production and efficiency."

Under the integration of mines, mining companies have also reduced external interference and achieved light loading.

"In the past, due to land subsidence and cracking of houses, the relationship between local mines and towns was very tense, which seriously affected the normal production and operation activities of mining enterprises." Luo Wuxian, chief engineer of Zhangshuanglou Coal Mine, said, "Now the integration has been carried out and the villagers have moved. The external environment of our production has improved. We insist on green mining and scientific mining, and improve the 'three rates'. We must not only extract all the coal, but also strengthen environmental protection, increase the proportion of coal washing, and strengthen the comprehensive utilization of coal gangue. ."

Jiawang District adheres to the concept of organic integration of subsided land management and ecological restoration, and has managed 2000 acres of quarry abandoned mines, and implemented a number of comprehensive remediation projects such as Moon Lake, Xiaonan Lake, Dugong Lake and Panan Lake. Now it has created a national leisure. The tourism demonstration zone and the green model area have 4 4A-level scenic spots, 1 3A-level scenic spot, and 10 four-star rural tourism demonstration sites in Jiangsu. They have developed large-scale industrial service chains such as tourism and catering, which has driven a few dozens of squares. The economic development within the scope of the rice provided opportunities for income generation and income increase for more than 3,000 people in the surrounding area.

"We will continue to deepen the mine integration mechanism and increase the comprehensive improvement of land and resources. Recently, we are actively carrying out the 'Wanqianbai' project, focusing on the idle land of 9,983 villages, 1,000 abandoned mines and 100 idle towns. Li Gang finally said that during the '13th Five-Year Plan period, Xuzhou City will optimize the land development pattern, strictly protect the cultivated land and ecological red line, promote the intensive use of land and minerals, promote the remediation of contaminated soil, and strengthen environmental risk prevention. Control and carry out ecological restoration, promote the protection of the quantity, quality and ecological 'three in one' of arable land. The city plans to achieve land remediation and supplement the cultivated land area to not less than 150,000 mu, and build high-standard farmland with concentrated contiguous, supporting facilities, high yield and stable production, and good ecology. The city exited 14 coal mines, and disposed of 1.14 square kilometers of abandoned exposed mining hills, focusing on 18 abandoned mining projects in Tongshan District, Jiawang District, Zhangzhou City and Suining County, and controlling the area of ​​coal mining subsidence area of ​​54.61 square kilometers. To ensure that the rate of coal mining subsidence in the stable area is 100%."

Wall Saw Blades

Wall Saw Blades,Diamond Wall Saw Blades,Ceramic Wall Saw Blades,800mm Wall Saw Blades

Henan Huanghe Whirlwind International Co., Ltd. , https://www.huangheindustry.com