地震研究

2021年云南漾濞MS6.4地震发生后,对震区通信系统开展调查,梳理通信系统抗震的薄弱环节。首先介绍了此次地震的概况和震区通信系统的总体灾害情况,然后给出机房、通信基站(机房和设备)、通信铁塔、通信光缆线路的震后损伤状况和特征损伤现象,以及地震后通信系统的应急恢复情况,最后基于灾区通信系统震害情况,给出了提升通信系统抗震性能的建议:①对核心机房内的通信设备安装进行抗震加固; ②重视通信光缆和线杆抗震设计; ③对县城区内光缆和电线进行统一规划设计; ④楼面基站建设前要综合考虑居民楼的楼面附加荷载; ⑤重视非结构破坏,防止对设备造成损伤。

At 21:00 on May 21,2021,an MS6.4 earthquake occurred in Yangbi County,Dali Prefecture,Yunnan Province.A detailed survey was carried out right after the earthquake aiming at investigating the disaster of the communication system in the earthquake-stricken area.In this study,the general situation of the earthquake and the overall disaster situation of the communication system in the disaster area were firstly introduced.Then the characteristic damage phenomena of the base station controllers,base transceiver stations,communication tower and communication optical cable lines were reported in detail.Also,the emergency recovery of the communication system after the earthquake was introduced.Finally,some suggestions based on the disaster survey were provided to improve the aseismic performance of the communication system.These suggestions include:①Aseismic reinforcement should be carried out for the communication equipment without reliable installation; ②Aseismic design should be considered for the communication cable lines and the poles; ③Unified planning should be made for the construction of the communication cable lines and the electric wires in county areas; ④When the base transceiver stations are placed on the roof of the residential buildings,the carrying capacity of the roof panels should be carefully checked.⑤The damage of the nonstructural components should be paid attention to.

引言
1 漾濞M_S6.4地震及其震害影响
2 漾濞县辖区通信系统震害概况
3 漾濞县通信系统的典型震害
4 震后通信系统应急恢复情况
5 通信系统抗震能力提升建议
6 结论

图1 漾濞县部分受损通信基站分布<br/>Fig.1 Distribution of some damaged base transceiver stations in Yangbi County

图1 漾濞县部分受损通信基站分布
Fig.1 Distribution of some damaged base transceiver stations in Yangbi County

图2 通信系统组成架构示意图<br/>Fig.2 Schematic diagram of the communication system

图2 通信系统组成架构示意图
Fig.2 Schematic diagram of the communication system

图3 中国电信漾濞分公司汇聚机房所在建筑结构的震害<br/>Fig.3 Typical damage phenomenon of the building structure of the China Telecom core engine-room in Yangbi County

图3 中国电信漾濞分公司汇聚机房所在建筑结构的震害
Fig.3 Typical damage phenomenon of the building structure of the China Telecom core engine-room in Yangbi County

图4 中国电信漾濞分公司汇聚机房内的设备安装、加固措施<br/>Fig.4 The reinforcement measure of the equipment in the China Telecom core engine-room in Yangbi County

图4 中国电信漾濞分公司汇聚机房内的设备安装、加固措施
Fig.4 The reinforcement measure of the equipment in the China Telecom core engine-room in Yangbi County

图5 中国移动漾濞分公司汇聚机房所在建筑结构的震害<br/>Fig.5 Typical damage phenomenon of the building structure of the China Mobile core engine-room in Yangbi Count

图5 中国移动漾濞分公司汇聚机房所在建筑结构的震害
Fig.5 Typical damage phenomenon of the building structure of the China Mobile core engine-room in Yangbi Count

图6 中国移动漾濞分公司汇聚机房内的设备安装、加固措施<br/>Fig.6 The reinforcement measure of the equipment in the China Mobile core engine-room in Yangbi County

图6 中国移动漾濞分公司汇聚机房内的设备安装、加固措施
Fig.6 The reinforcement measure of the equipment in the China Mobile core engine-room in Yangbi County

图7 中国联通漾濞县分公司汇聚机房(a)及机房内设备震后情况(b)<br/>Fig.7 The building structure(a)of the China Unicom core engine-room in Yangbi County and the equipment in the room after earthquake(b)

图7 中国联通漾濞县分公司汇聚机房(a)及机房内设备震后情况(b)
Fig.7 The building structure(a)of the China Unicom core engine-room in Yangbi County and the equipment in the room after earthquake(b)