急求英语摘要一篇,请各位帮帮忙

来源:百度知道 编辑:UC知道 时间:2024/05/30 20:25:29
地铁在中国作为一种新兴的交通手段越来越受到重视。现代地铁区间无论是从施工方法,还是从施工监控来说都较其他交通手段有了较大的变化。本设计课题为地铁区间,研究新奥法施工,注重的是信息化施工监控与衬砌质量检测。
本设计的洛溪-南洲区间起于洛溪站,止于南洲站,区间为单线隧道。在ZCK8+6.617~ZCK8+268.216和ZCK8+774.086~ZCK9+3.981为本区间最大曲线,半径为600m。在ZCK7+749.018~ZCK7+804.279为本区间最小曲线,半径为300m。隧道全长2233m.设计区段为Ⅲ级围岩地段,长290m,采用新奥法施工中的短台阶开挖法。
新奥法施工隧道的主要特点是:通过多种量测手段,对开挖后隧道围岩进行动态监测,并以此指导地铁区间支护结构的设计与施工。量测的基本内容有隧道围岩变形、支护压力和衬砌受力。
混凝土衬砌在施工和使用过程中所生成的缺陷有裂缝、孔洞、蜂窝和层状破坏等。衬砌质量检测不仅是控制衬砌混凝土施工质量的主要手段,也是评价运营隧道衬砌现状所必须的。常用回弹法、超声波检测混凝土衬砌强度、探地雷达法探测混凝土衬砌厚度及背部空洞。

Metro in China as a new means of transport more attention. Modern Subway whether from the construction methods, or from the construction, monitoring than other transport means have been greatly changed. The design issues for the metro, a new Austrian law on construction, pay attention to the information construction and lining of quality control testing.
The design of Luoxi - in the South Island range from Luoxi station, stop at the South Island stations, interval for the one-lane tunnel. In ZCK8 +6.617 ~ ZCK8 +268.216 and ZCK8 +774.086 ~ ZCK9 +3.981-based interval biggest curve, a radius of 600 m. In ZCK7 +749.018 ~ ZCK7 +804.279-based interval minimum curve radius of 300 m. 2233 m. long tunnel designed to Ⅲ-class section of rock lots of 290 m, construction of a new Austrian law in the short stage of excavation.
Construction of the new Austrian tunnel is the main characteristics: through a variety of means of measurement, the rock excavation for the tunnel after the dyn