而二次衬砌直接关系到开挖断面的大小和工程造价。
But it is directly related to the excavation of the size and project cost.
高速公路路堑爆破开挖工程具有开挖高度变化大、开挖断面小、开挖轮廓要求严、特别是边坡质量要求高等特点。
Cutting excavation blasting in expressway construction is characterized by a wide range of excavation height, small excavation section and high quality requirements.
全断面钻爆法适用于围岩坚固稳定，采用钻孔爆破方法将洞室开挖断面一次性开挖成型的地下建筑工程洞室开挖掘进方法。
The whole section explosion method which is the one for underground construction digging, suitable for stable and strong dam, form a section for one time by drilling explosion.
并针对动态模拟隧道开挖这一难题利用离心模型对深圳地铁sk3 + 395断面进行了尝试性的研究，取得了一定的进展。
On the puzzle of dynamic simulation of tunnel excavation with centrifuge model, this thesis makes a trial research on the section of SK3 + 395 of Shenzhen Metro and has made some progress.
隧洞断面宜采用曲线形状； 宜采用控制爆破全断面开挖，减少对围岩的扰动以保持岩体自承能力；
The tunnel section is advised to adopt curved shape and full-face excavation by controlled blasting to reduce disturbance on surrounding rock and maintain its self-supporting capability.
着重介绍了挖孔桩小断面开挖中，光面爆破技术的应用。
The article emphasizes on introducing the application of the smooth blasting in the small excavation for the excavation pile.
在硬岩中中隧道可采用凿岩台车钻眼，进行全断面开挖。
Tunnel in hard rock may be excavated in whole section by using chiseling rock trolley to drill small holes.
对于竖井开挖 ，尤其是大断面深竖井开挖 ，出碴这一环节 ，往往是决定掘进速度快慢的关键因素。
The spoiling is a key factor influencing the advance speed for the shaft excavation, especially for the excavation of large cross section and deep shaft.
文章应用非线性弹塑性模型，对层状土地层中浅埋隧道全断面开挖过程进行了三维有限元分析。
A nonlinear elastoplastic model is applied to simulate the full face 3-d excavation process of a shallow tunnel embedded in layered soil.
采取抽样调查法和侵蚀断面测量法，对陕西北部山丘区公路开挖边坡侵蚀进行了定量分析。
The erosion of cutting-slope of highway in north Shaanxi Province is investigated and evaluated by measuring the erosion depth on slope surface through 43 sampling sites.
采取抽样调查法和侵蚀断面测量法，对陕西北部山丘区公路开挖边坡侵蚀进行了定量分析。
The erosion of cutting-slope of highway in north Shaanxi Province is investigated and evaluated by measuring the erosion depth on slope surface through 43 sampling sites.
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