我国唐山、丰南一带76年7月28日地震后,从震害调查报告中看出,由于温度缝,高低跨沉降缝等,在这次地震时产生了较严重的震害。在唐山地区,如煤炭工业部设计管理局有关资料介绍,开滦煤矿机械制修厂位于9度区,其中动力车间伸缩缝引起严重 After the earthquake on July 28, 76 in Tangshan and Fengnan, China, we can see from the earthquake damage investigation report that due to temperature seams, high-low settlement settlements, etc., a relatively serious earthquake disaster occurred during this earthquake. In the Tangshan area, such as the relevant information provided by the Design Bureau of the Ministry of Coal Industry, the Kailuan coal mine machinery repair factory is located in the 9th district, where the power plant expansion joints cause serious damage.