围岩

Based on the in-situ monitoring of Gonghe Tunnel and numerical simulation, the failure feature of layered rockmass was analyzed; and the results show that the surrounding rock deformation and displacement, contact pressure and fracture zone mainly exist on the right side of the tunnel vault, that is, the side near the river is larger than that near the mountain.

结合共和隧道现场监测和数值模拟相结合的方法对层状岩体的破坏特征进行了分析，研究结果表明：围岩的变形位移、破坏区都主要集中隧道拱顶右侧，即靠河侧大于靠山侧。

By the half-analytic calculation method, the paper analyzed the tunnel circumjacent constringency and vault settlement with time and alteration depth of tunnel face, the relevant constringency model was built, and the reasonable second support time for hard and soft rock tunnel were proposed.

中文摘要：利用半解析计算方法，考虑了隧道周边收敛和拱顶下沉随时间和掌子面推进距离的变化情况，建立了相关的收敛模型，并由此给出了硬岩及软岩隧道中的二衬的合理支护时机，并结合工程实际对Ⅱ、Ⅲ、Ⅳ、Ⅴ级围岩进行了周边收敛结果的最小二乘拟合计算。

Dongziya Tunnel DK683 +938 ~ DK684 +076 segment is with Dukang groove fault fracture zone, in which the DK683 +938 ~ DK684 +004 segment is shallow-buried. Shallow-buried depth of tunnel, fractured,rock of tunnel are apt to cause vault subsidence, horizontal convergence, collapse in excavation progress.

洞子崖隧道DK683+938～DK684+076段属杜康沟断层破碎带，其中DK683+938～DK684+004段为浅埋段，隧道埋深浅、围岩较破碎，施工中易出现拱顶下沉、水平收敛、坍塌等现象。

This paper introduces the CRD method and the auxiliary measures of pre - grouting for the shallow - buried soft surrounding rock of the entrance section of Yangpeng Right Tunnel on Beijing -Zhuhai Expressway.

文章介绍了在京珠高速公路洋碰隧道右线进口浅埋软弱围岩段施工中采用中隔墙交叉台阶施工的主要工法及长短结合超前预注浆的辅助工法。

A large 3D numerical model of forked tunnel is set up and different construction processes are simulated by D-FEM. Through analyzing displacement, stress and damage yield zone of tunnel surrounding, the optimum construction process that left tunnel excavates ahead of right tunnel 32 m is determined, left tunnel and right tunnel excavate synchronously is proposed.

建立了分岔隧道大型三维数值模型，采用弹塑性损伤有限元D-FEM模拟了分岔隧道不同的施工过程，通过分析施工过程中隧道围岩的位移、应力和损伤屈服区，最终确定采用左洞超前右洞32m，左右洞同步开挖的施工方法。

Against the compound transformation problem of existed shield tunnel under construction of foundation pit of the Beixinqiao station in Beijing No.5 subway line, by ANSYS, combining with geological condition and according to the different working condition, three-dimensional numeric models are built and the emulation of the construction process is carried on.

针对北京地铁五号线地铁车站基坑施工条件下既有盾构隧道的复合变形问题，基于ANSYS，结合场地的水文地质和工程地质条件，按照不同的工况建立了三维数值模型，并进行了施工过程的模拟通过对结果的对比和分析，揭示了在不同施工状态下，基坑周围土体、支护结构及既有盾构隧道之间相互作用的过程和机理，以及由此引起的围岩变形的分布与变化规律。

Base on ananlyse result, put forward prevention and cure of tunnel disease and repair measure in the zone of swelling wall rock, provide reference idea for the same tunnel design 、 construction and so on.

根据分析结果，提出膨胀性围岩隧道的病害防治及整治措施，为此类隧道的设计、施工等提供参考意见。

A general program using APDL(ANSYS parametric design language),which is applicable to arbitrary lining sections of the three-centered circular arch with different surrounding rock pressure distributions,was developed for the calc.

利用ANSYS的参数化高级设计语言，编制了适合任意三心圆拱衬砌断面和不同围岩压力分布形式的隧道衬砌内力和偏心距的通用计算程序。

In flat dip layer, the seam thickness control the stability of the wall rock, the thick-bedded hard rock is stable than the thin-bedded hard rock.

岩层厚度在缓倾斜时对围岩稳定起控制作用，厚层硬岩整体稳定性好于薄层状硬岩。

The research that the of transverse gallery results in the increase of local deformation near the crossing of the transverse with obvious growth of tension stress zone as well as the high stress concentration effect around the intersection of .

通过采用三维有限元数值模拟主隧道与横通道组成空间复杂交叉结构的施工过程，得出横通道施工将导致交叉部开口一侧结构变形不对称增加，围岩拉应力区显著增大以及交叉连接部两侧应力集中的施工受力特征。

Plunder melds and run with this jewel!

掠夺melds和运行与此宝石！

My dream is to be a crazy growing tree and extend at the edge between the city and the forest.

此刻，也许正是在通往天国的路上，我体验着这白色的晕旋。