tunnel diameter

Soil Body Construction of Shield Access Tunnel Front in Large Diameter Tunnel Construction

大直径涵洞施工中盾构进出洞口的土体加固试验研究

Calculation for Economic Diameter of Small Hydropower Tunnel

小水电站发电引水隧洞经济洞径的计算

In the design of the single-line metro interval shield tunnel, the control parameter of the upper load over tunnel shall be designed according to the equivalent load of the 1. 5 times external diameter.

在单线地铁区间盾构隧道设计中，上覆荷载按1.5倍盾构隧道外径高度的等效荷载作为设计控制参数；

Study on the Face Stability of Shield Tunnel with Large Diameter

大直径盾构正面稳定性研究

The pile driving of a container terminal is close to the large-diameter tunnel to be built, with the length of pile being up to 55 m and the diameter of tunnel being about 18 m.

某集装箱码头打桩施工紧邻拟建的大直径越江隧道，桩身长度达到50m，隧道直径约18m。