Research of the prediction method and environment conservation due to coal mining subsidence in North China

华北地区采煤塌陷预测方法及环境保护研究

基本信息

批准号：
15404027
负责人：
ESAKI Tetsuro
金额：
$ 4.8万
依托单位：
KYUSHU UNIVERSITY
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
2003
资助国家：
日本
起止时间：
2003 至 2005
项目状态：
已结题

项目摘要

In order to solve subsidence problem due to mining, we cooperate with the leading research institutes in China to carry out this project. During the cooperation, we invite the Chinese researchers to Japan, and send our researchers to China to investigate the current status of subsidence. The investigation and studied results are summarized.Because most of the coal mining in China is underground mining, it is believed that the subsidence is unavailable. The influenced area is about 133〜200 million m^2 increasing every year. Generally, the corresponding influences to the surface structure are discussed as follows : subsidence, slope, curvature, horizontal movement and longitudinal strain. In fact, each influencing factor works alternatively. In many areas, there are a lot of rivers with a low gradient riverbed in China. Subsidence may influence the whole watershed area and some problems such as drainage may take place. Kyushu University has developed a new analysis system to predict the subsidence procedure by using Geographic Information System (GIS). The method has been applied to two representative districts in North China. The subsidence because of excavation process is precisely predicted, and its influences to surface structure such as the railway and bridge are assessed. Some ideas have proposed and the excavation planning is modified to reduce the subsidence impact.In the excavation planning of coal mining, the corresponding influences and impact should be evaluated correctly and the corresponding counter measures have to be prepared. Concerning the theme of creating a good new environment nowadays, the research results could be used to establish a geo-environment conservation system, and the development of resources could be in harmony with the environment.

为了解决由于采矿而引起的沉降问题，我们与中国领先的研究机构合作进行了该项目。在合作期间，我们邀请中国研究人员前往日本，并将我们的研究人员送到中国调查当前的沉降状况。总结了投资和研讨会结果。由于中国的大多数煤矿开采都是地下开采的，因此人们认为沉降不可用。受影响的地区每年增加约133-200万m^2。通常，对表面结构的相应影响如下讨论：沉降，斜率，曲率，水平运动和纵向应变。实际上，每个影响者都可以工作。在许多地区，有很多河流在中国有低梯度的河床。沉降可能会影响整个分水岭地区，并且可能发生一些问题。京都大学已经开发了一种新的分析系统，可以使用地理信息系统（GIS）预测沉降程序。该方法已应用于中国北部的两个代表区。精确预测了由于挖掘过程而进行的沉降，并评估了其对铁路和桥等表面结构的影响。提出了一些想法，并修改了挖掘计划以减少沉降影响。在煤矿开挖计划中，应正确评估相应的影响和影响，并且必须准备相应的反衡量标准。关于如今创建一个良好的新环境的主题，可以使用研究结果来建立地理环境保护系统，并且资源的开发可能与环境和谐相处。