pioneer tunnel

pioneer tunnel的基本解释

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超前小平巷

与pioneer tunnel相关的网络例句 [注：此内容来源于网络，仅供参考]

The entrance section of FuXi Double-arched Tunnel is modeled in the fact of factual shallow buried and unsymmetrical pressure condition. Adopting the three heading construction method to simulate twelve kinds of construction projects, confirm reasonable construction orders and left and right tunnel face interval, systematically analyze and research the changing law of the tunnel deformation and surrounding rock stress in soft and cracked condition of surrounding rock,bring forward pertinent advices against construction disease; Build the deep buried tunnel model in middle section of tunnel , separately adopt the central heading bench cut benching method and the central heading full cross method to simulate ten kinds of construction projects, establish the reasonable construction orders, sidestep length and tunnel face interval, which are due to the deep buried tunnel, systematically analyze and research the change law of the tunnel deformation and surrounding rock stress in the section with good surrounding rock condition, bring forward the reasonable construction projects which can make sure of construction safety and save construction time; Because the central wall is disturbed many times during constructing process, its displacement and stress distribution is very complex.

富溪隧道进口段依照实际的浅埋偏压状况建立模型，采用三导洞法开挖模拟了12种方案，确定了合理的施工顺序和左右主洞掌子面错距，系统地分析研究了软弱破碎围岩浅埋偏压段施工的隧道变形和围岩应力变化规律，提出了防止施工病害的针对性建议；洞身段按深埋隧道建立模型，分别采用中导洞台阶法和中导洞全断面法模拟了10种方案，确立了适合深埋隧道的合理施工顺序、台阶长度和掌子面错距，系统分析研究了围岩较好深埋段施工的隧道变形和围岩应力变化规律，提出了兼顾施工安全和节省工期的合理施工方案；由于受到多次扰动，中隔墙的位移和应力变化规律较为复杂，通过对各种方案的对比分析，得出了中隔墙在施工不同阶段的位移变化规律、应力变化规律和应力分布规律，尤其对于浅埋偏压段隧道施工时中隔墙位移和应力变化规律做了深入研究，提出了合理的施工建议。

The selection of geological prospecting in different stages(initial-prospecting, detailed-prospecting)(2)the selection of geological prospecting in the deep-laid and shallow-laid of tunnel project (3)the selection of geological prospecting of tunnel projecting in different geological conditions Finally, the author summed up main problems needing to be solved in tunnel engineering geological prospecting as follow:(1)differentiate stratum and find out the depth and thickness of different stratums in the tunnel section (2)find out geological structure and existence situation of fault, broken zone and weak plane (3)find out weathering level of bed rock to classify surrounding rock combining speed materials (4)differentiate stratum structure of the entrance of tunnel to judge the stability of it (5)find out existence situation and performance of ground water (6)situations of other harmful geological phenomenon In view of above problems and classification of surrounding rock, the author showed principles of rational choosing of methods in geological prospecting and counted disperse range of physical character parameter value in different petrosal character, getting achievements as follow:(1)summarization of effect, merits and demerits of different geological prospecting methods in the tunnel geological investigation (2)method selection and arrangement principle of tunnel engineering geological prospecting in different geological conditions and prospecting stages (3)According to previous experience and cases, the author concluded the物性parameters most in use ,and showed the basis of selecting geological prospecting methods in different geological conditions.

论文中用几个应用实例来说明：(1)不同勘察阶段物探工作的选用；(2)深埋、浅埋隧道工程物探工作的选用；(3)不同地质条件隧道工程物探工作的选用。最后总结归纳出隧道工程物探所需要解决的问题主要有：(1)划分地层，查明隧道通过剖面的各地层深度与厚度。(2)查明地质构造，隧道轴线段有无断层、破碎带、软弱层面等。(3)查明基岩风化程度，从而结合速度资料进行围岩分级。(4)划分洞口地层结构，判断洞口稳定性。(5)查明地下水赋存情况及其活动动态。(6)其他不良地质现象存在情况。针对上述需要查明的地质问题与计算围岩分级情况，论文提出合理选用物探方法的原则，并统计了物性参数值在不同岩性中的分布范围。得出以下研究成果：(1)总结出各物探方法在隧道地质调查中的作用和优缺点。(2)得出不同地质条件下和不同勘察阶段，隧道工程物探方法选择和布置的原则。(3)根据以往工作经验和事例，对常用的物性参数进行了归纳总结，同时介绍了不同地质条件下物探方法选择的依据。

Though the load analysis on the tunnel roof wall-rock in the fault footwall tunnel, this paper solves the problem of the tunnel support of tunneling through the great fault; and though the load analysis on the corresponding wedge of the lower abandoned tunnel, solves the problem of the influence of the lower abandoned tunnel on the upper tunnel floor.

通过对断层下盘巷道顶板围岩的受力分析，解决了煤巷掘进过大断层的巷道支护问题；通过对下部废巷道对应的楔形体的受力分析，解决了下部废弃巷道对上部巷道底板的影响问题。

与pioneer tunnel相关的网络解释 [注：此内容来源于网络，仅供参考]

pioneer tunnel：超前小平巷

pioneer stage ==> 先锋阶段 | pioneer tunnel ==> 超前小平巷 | pioneer well ==> 导井,初探井

Pioneer Tunnel Coal Mine：先锋队道煤坑

爱许地Ashland | 先锋队道煤坑Pioneer Tunnel Coal Mine | 卡本Carbon