对合理留设保护煤柱的分析探讨

对现行的保安煤柱留设方法进行分析，提出新的改进意见，可供参考。

利用垂直剖面法计算光伏发电项目对任楼煤矿矿产资源压覆范围

根据《建筑物、水体、铁路及主要井巷煤柱留设与压煤开采规范》,采用垂直剖面法计算光伏电站对任楼煤矿矿产资源压覆范围,在遇到煤层露头区以及受断层影响在光伏电站范围内煤层走向发生变化,在煤层倾向做2条剖面确定保护煤柱的留设范围。

A Study on the Architectural Application of Aerogel

As the building energy saving is more and more important, high-performing insulation like aerogel will be required in buildings to improve their thermal environment and to save building energy. This study conducted the literature survey on the aerogel blanket and presents the architectural application considering its high-insulating property. If aerogel is applied to a building as an envelope insulation, its thickness could be reduced to as half as that of existing insulation such as polystyrene foam board or glassfiber. Currently, aerogel is largely used as a thermal breaker in thermal bridges in buildings. It is still too expensive to be used as a main insulation of whole building envelopes. Thanks to the advantages of aerogel blanket such as low thermal conductivity, broad temperature range for use, excellent water repellent property and fire resistance, easiness of moving and applying, it has much possibility in the respect of its building application.

地下掩埋管道及其地下建筑物压覆矿产边界的确定

地下掩埋管道及其地下建筑物压覆矿产边界,是由建设工程本身抗破坏能力、工程重要性以及矿体特征、开采方式、工程与矿体的相对位置等因素决定的。对于地下矿体,按围护带宽度、上覆各岩层移动角确定压覆矿产边界;对于地表非爆破性采矿,按围护带宽度和地表岩层移动角确定压覆矿产边界;对于地表爆破性采矿,安全爆破距离一般取50m。