掌子面

V形掌子面在隧洞开挖中的应用

Application of V - shaped Heading Face in Tunnel Excavation

基于OpenGL的隧道掌子面三维重建系统的设计与实现

Design and Implementation of Tunnel Face 3D_Reconstruction Based on OpenGL

实践表明，采用钻孔雷达和BEAM电法探测技术对隧道掌子面前方的不良地质情况，尤其是含水情况具有较好的预测结果。

The practice demonstrates that the prediction to adverse geologic condition in front of the heading face by boring radar and BEAM electric method , especially to water-holding condition , is satisfied .

与平齐掌子面掘进施工相比，采用V形掌子面，大大提高了炮孔利用率，增加了单循环进尺，降低了开挖成本。

Compared with the plane working face , the horizontal V shape working face has greatly increased the utilization factor of boreholes and the advance per round and reduced the excavation cost .

掌子面爆破之后CO、H2S浓度随着时间规律变化比较明显，扩散呈现出一致的连续性和相似性。

After the tunnel face blasting , concentration of CO and H2S have the more obvious changes with time , meanwhile diffusion exhibits a consistent continuity and similarity .

根据BP神经网络算法，对图像特征参数进行训练，得到参数模型，该模型可用于自动判别不同的隧道掌子面岩体的岩性。

According to BP neural network algorithm , image characters are trained so as to obtain parameter model . This model can be used to automatically classify the lithology of different tunnel faces . 6 .

拱顶沉降在施工掌子面进展到9m之后其沉降值达到最大值，故控制6m的施工进深然后做拱部全断面的二次衬砌是十分必要的。

The vault sedimentation maximizes behind tunnel heading reaching 9m , So 6m construction throat is necessary .

掌子面地质编录、超前钻孔、TSP超前探测、探地雷达探测、高密度探测、红外线探测及电磁CT探测等方法均是进行地质超前预报行之有效的方法与手段。

Many effective methods can be taken for advanced forecast for geologist , such as , geological note for the work area , advanced borehole , TSP advanced detection , GPR detection , high density detection , infrared ray detection and electromagnetism TC detection and so on .

地下洞室掌子面空间效应有限元分析

Finite Element Analysis of Space Effect Near Tunnel 's Work Area

深埋长大隧道施工掌子面温度预测

Temperature Prediction of Excavation Face in Long Tunnel with Thick Overburden

隧道超前小导管对掌子面稳定性影响分析

Analysis of Tunnel Leading Conduit Affecting the Stability of Tunnel Face

基于图像处理的隧道掌子面地质信息研究

Research of Tunnel Face Geology Information Based on Image Processing

目前国内对隧道掌子面图像分析的研究仍处于起步阶段。

Now the research of tunnel face image processing analogy is still elementary .

五尖岭隧道K27+181掌子面处坍塌冒顶处理

The solution of roof collapse in WU-jian mountain tunnel

隧道掌子面地质信息数字编录识别技术研究

Geological Information Research at Tunnel Excavating Face by Image Compiling and Identify Technology

有关泥水加压式盾构机掌子面土压力计算的探讨

An Inquisition into Calculation of Earth Pressure of Tunnel Face for the Slurry Shield

天生桥隧洞掌子面附近的应力关系。

The relations between rockburst and the stresses around the stope in the tian-shen-qiao tunnels .

小波变换去噪在隧道掌子面前方地质预报中的应用

Application of wavelet transform to eliminate the noise in front of tunnel face in geologic prefiguration

野外掌子面可见珍珠岩与膨润土、隐爆角砾岩、流纹岩共生。

The perlite is associated with bentonite , hydrothermal breccia , rhyolite in typical geological sections .

实现了对隧道掌子面岩体的自动分析和评价功能。

So the function that automatically analyzed and evaluated face surrounding rock conditions is realized . 4 .

研究隧道掌子面后方隧道拱顶、掌子面正上方和侧面围岩的爆破振动规律。

The blasting vibration rules of arch crown and upper and side surrounding rocks behind tunnel face are studied .

隧洞开挖的轴向洞顶距离掌子面3倍洞径处会出现一个爆破振速增大的区域。

Radial velocity is bigger on axis top of tunnel at the distance of 3 times of radius to free face .

高频地震反射波法能有效地进行隧道掌子面前方地质预报。

The result states clearly that the seismic reflection method of high frequency can effectively apply to geologic prefiguration in tunnel .

左洞掌子面距研究断面3倍洞径时，中墙内力已稳定；

Inner force of midboard has been in stabilization when left cavern heading face drives to three times diameter from researched cross-section ;

图像线性特征识别是三维隧道地质状况数字重建的基础，并能给掌子面围岩分级提供重要参数。

The recognition of linear feature is on the basis of3D numeral reconstruction and could provide some critical parameters for rock masses classification .

因此，测试隧道爆破近区围岩的振动、研究隧道掌子面附近围岩的振动规律是隧道钻爆施工安全的重要保证。

So it is necessary to test blasting vibration of the surrounding rock near tunnel blasting source and to study the blasting vibration rule .

但是目前在施工中，探测掌子面前方的水体病害方面，尚是一个待攻克的难题。

But there is an unsolved problem in the exploration of unfavorable geologic bodies filled with water in the advanced forecast of geology in runnel .

因此，城市过江隧道施工过程中掌子面和围岩的稳定性是控制地表沉降的关键步骤之一。

Therefore , the stability of the surrounding rock and tunnel face in the tunnel construction process is a key step to control surface settlement .

侧壁围岩的累计损伤范围主要由与其齐平的导洞I的开挖掌子面爆破决定；

The accumulative damage range of surrounding rock is mainly determined by the blasting of excavating face of pilot tunnel I which is parallel to it .

本文研究了卸载孔及向掌子面注水对煤巷掘进头岩石应力状态的影响。

The effect of stress-releasing hole and water injection to the face on rock stress state around gateway driving face has been studied in this paper .