tunnel in earth

Application of Backfill Grouting In Earth Section of No.3 Tunnel of the South Main Line

回填灌浆技术在南干3~洞土洞段中的应用

Numerical simulation analysis of pipe in earth covering to large cross-section flat-top burial tunnel

平顶暗挖隧道覆土层内管线数值模拟分析

Therefore, the key problem in study is frost force of tunnel in frozen earth.

因此, 在冻土隧道的研究中,最关键的问题就是研究冻土隧道的冻胀力.

With merits like wide applicable ground type, fast driving speed, satisfactory construction quality etc, earth pressure shield entry-driving machines have been widely used in metro tunnel construction in our country and have a good prospect.

土压盾构掘进机具有土层适应范围广、掘进速度快、工程质量好等优点，已在我国地铁隧道工程中普遍选用，具有较好的发展前景。

But engineers run into an obstacle, a law brought in called Archimedes Principle, the same principle allows the submarine to rise, dive or float, the tunnel had to weigh the same as the earth was escalated, weigh less and it would rise, more and it would sink.

但是工程师们则遇到一个障碍，一个被称为阿基米德原理的法律，同样的原则允许潜艇上升，潜水或漂浮。由于土地问题，隧道也必须服从这一原理，体重较轻，就会上升，反之则会下沉。

Influence to the tunnel in close proximity caused by the volume of excavated earth is simulated.

模拟了出土量对邻近已建隧道的影响。