Study on Reuse Strategy of Abandoned Industrial Square - in the case of Jingxi Wang Ping Coal Mine

Wangping Coal Mine, whose industrial heritage is of great value, was one of the eight coal mines in Beijing. A large number of field surveys and analysis of the abandoned industrial facilities of Wangping Coal Mine were carried out in this paper. From the perspective of protecting industrial heritage culture and sustainable development, this paper studies the ideas and strategies for reusing the abandoned facilities of the Wangping Coal Mine. In order to protect its industrial heritage as much as possible, it is suggested to reuse the industrial square of Wangping Coal Mine as a community park.


Introduction
According to the instructions of Responsibility Document for Resolving Overcapacity in the Coal Industry to Realize the Goal of Relief from Difficulty, Wangping Coal Mine was asked to stop its production on August 16th, 2016. It was formally established in 1964 and suspended at the beginning of 1994. With 30 years of mining history, it has made outstanding contributions to the development of the coal industry of Beijing [1].

Geographic location
Wangping Coal Mine is located in Wangping Town， which is in the west of Mentougou District in Beijing. The railway from Yongding Gate to Muchengjian passes through it. 109 National Road runs to the east of it. Tanwang Road passes through the middle of it ( Fig. 2-1). The whole mining area is steep, because its north, west and south are surrounded by mountains. * Corresponding author: tjulxd@sina.com

Historical evolution
Wangping Coal Mine has a long history (

1994
The production of Wangping Coal Mine was suspended.
Prior to that, its annual output was 800,000 tons.

Goafs and collapse sites
Most of the goafs in Wangping Coal Mine were located in the west and south of Anjiatan, Nanling, Beiling, Liujiafen, Shizidao and other villages. They covered about 2km 2 .
In August 2016, there were five small collapse pits on the hillside of wasteland in the west of Anjiatan. Based on many investigations and evaluations of the current geological environment of Wangping Coal Mine, the development of small collapse pits has been basically stable. [4] Under the current conditions, the mine geological environment has slight impacts on the human settlements and the environment around [5,6].

Groundwater
Related research showed that after the shutdown of Wangping coal mine, the groundwater level has picked up. The content and saturation of original water has been restored. The underground water in the mining area has no toxic or harmful substances and can be exploited and utilized [7,8].

Protective reuse strategy
It is found that the production equipments, office buildings, dormitory buildings, railroad tracks and others of Wangping Coal Mine industrial square are well preserved (Fig. 4-1). They are very valuable industrial heritage buildings.

Reuse principle
In order to take good use of the original appearance of the industrial square, it is suggested to take some reinforcement measures. And buildings that have nothing to save should be demolished, and some coal-industrystyle facilities should be reserved.

Reuse strategy
Furthermore, the needs of local residents and urban tourists should be taken into account. Therefore, the industrial square of Wangping Coal Mine is suggested to be reused as a community park [9]. It consists of Pedestrian street，Industrial heritage park，Civic activity center ， Railway park ， Ecological experiment base ( Fig.4-2 ) . This strategy creates more room for interaction and outdoor activities for people. The commercial pedestrian street at the entrance has promoted local economic development which also satisfies residents' shopping needs. The part of the coal mine ecological park includes the ring path system and the industrial park system. The design of the ring path，which allows visitors to overlook the Wangping Coal Mine，was inspired by the Acropolis' tour and the New York High Line Park. The design of the industrial park is based on the successful experience of the German Ruhr area. Because of its high degree of advantage, the coal bunker has become a landmark of the entire mining area. It was reused as a watchtower connected to the circular path system. The Waterscape Park under the observation tower was transformed from the original collapsing pit, which echoes the northern wetland of Wangping Town.

Conclusion
Wangping Coal Mine have witnessed the profound impact of mining activities on Beijing. Its reuse is a respect for the history of cities and the culture of coal mines. At the same time it helps to enhance the local residents' sense of identity and social belonging. This study explores the reuse strategy of Wangping Coal Mine Industrial square and hopes to promote the reusing and sustainable development of Jingxi Coal Mine.