唐山煤矿采空区七滦铁路沉降评估及整治  

Subsidence Evaluation and Treatment of Qiluan Railway in Goaf of Tangshan Coal Mine

作　　者：韩建文 HAN Jianwen(China Railway Design Corporation,Tianjin 300080,China)

机构地区：[1]中国铁路集团设计有限公司,天津300080

出　　处：《路基工程》2022年第5期209-213,共5页Subgrade Engineering

摘　　要：以大量翔实的实测数据,分析了唐山地区深厚煤层的沉降特点和规律,其采深与采厚之比为70~160,大于30,其变形随时间和空间连续,一般不会发生大面积的地面突然塌陷。地面沉降下沉系数为0.84,影响范围角正切tgβ=0.9、拐点偏移距0.02H~0.05H,重复扰动系数可取1.1。并对其上七滦铁路沉降提出整治措施。Based on a large number of detailed measured data, this paper analyzes the settlement characteristics and laws of deep coal seams in Tangshan area. The ratio of mining depth to mining thickness is 70 ~ 160, which is greater than 30. Its deformation is continuous with time and space, and generally there will be no sudden collapse of large area of ground. The coefficient of land subsidence is 0.84, and the angle tangent of the influence range is tg β= 0.9. The offset distance of inflection point is 0.02H ~ 0.05H, and the repeated disturbance coefficient can be taken as 1.1. The remediation measures for the settlement of Qiluan railway are put forward.

关 键 词：老煤矿采空区 铁路路基 结构物 下沉病害 沉降评估 整治措施 

分 类 号：U416[交通运输工程—道路与铁道工程]