查询词典 surrounding rock

Took Chongqing Gong-he tunnel as an engineering example and studied the failure mechanism of surrounding rock and the correlation with bolt support system by using the methods of theoretical analysis, modeling test, numerical simulation and in situ test, some helpful conclusions were arrived as follows.Firstly, a new failure criterion for transversely isotropic rock mass was proposed with consideration of bedding plane orientation and major principal stress, and the corresponding algorithm, arrived through VC++6.0, can be easily embedded into the software FLAC3D for the geotechnical calculation.

论文在国家自然科学基金专项基金创新群体基金项目(No.50621403)以及国家自然科学基金重点项目"隧道与地下空间工程结构物的稳定性与可靠性(No.50334060)"的资助下，以共和隧道为示范工程，运用理论分析、物理模型实验、数值模拟和现场测试等手段，对共和隧道大埋深段层状岩体的围岩变形破坏机理、锚杆支护力学效应及围岩-支护结构的变形特征等内容进行了研究，其主要研究成果有：①在总结和探讨国内外学者提出的层状岩体经验型连续介质破坏准则基础上，结合层状岩体力学特性，考虑层面方向和最大主应力方向两个影响因素，提出了共和隧道层状岩体横观各向同性破坏准则；采用汇编语言VC++6.0实现了横观各向同性弹塑性本构关系的算法，并嵌入FLAC3D有限差分数值分析软件接口中实现数值运算。

A water-filled joint element is developed to simulate the limited cooperation between reinforced concrete lining and surrounding rock; and an equivalent method is adopted to develop the program, The reinforcement stress and the rock stresses in hydraulic tunnel with inner water exosmosis are calculated.

计算衬砌渗透系数，引入反映钢筋混凝土衬砌与围岩有条件联合承载特性的充水夹层单元模型，采用等效耦合分析方法，对水工隧洞内水外渗条件下的衬砌钢筋应力和围岩应力状态进行了计算分析。

A change within an intrusive igneous rock caused by the assimilation of portions of the surrounding rock.

声纳揭示出在我们潜水器的周围是一片几英亩大的鹅卵石地。

Study on applying the theory of inverse analysis and in-out boundary element method to forecast the pressure of soft rock tunnel'' surrounding rock and supporting deformation.

研究了用反分析理论和内、外边界元方法预测软岩巷道围岩压力和支护变形。

Authors gave the minimum rock covering thickness with comprehensive consideration of stability of surrounding rock and tunnel seepage volume.A...

提出应从围岩稳定性和隧道涌水量的大小综合考虑最小岩石覆盖层厚度；采用限量排放的防排水方案对海底隧道较为适宜；施工中可采用注浆和冻结法穿越海底的不良地质段；设置服务隧道有利于隧道施工和运营管理。

Then, we acquire the style and cause of formation of deep relaxed-tension rock mass base of that: early relaxtion along fault and weak interlayer; nearby relaxed-tension of surrounding rock because of karst; distortion and destroy of top rock mass form deep relaxed-tension because of karst collapse.

在此基础上得出深部卸荷拉裂岩体的类型和成因：沿断层、软弱夹层发生的早期松弛；由于岩溶引起邻近围岩发生松弛拉裂；岩溶坍塌引起上部岩体变形破坏而形成的深层松弛拉裂。

The studies also show that the increased supporting force can reduce the radius of the fractural zone in surrounding rock derectly, but the main effect of the increased supporting force is to improve the compressive stress on rock in elastoplastic region, and to increase the rock strength of whole fractural zone so as to reduce the scope of fractural zone.

而当围攻岩中出现了塑性区和破裂之后，支护力的作用才开始显现。提高支护力可直接减小围岩破裂区范围，但提高支护力的主要作用是提高弹塑性区围岩压应力，达到提高破裂岩体宏观强度的目的，从而减小塑性区和破裂区的范围。

Meanwhile,the works on ranking and selection of influencing factors of terrene surrounding rocks were completed,which can promote the standard of surrounding rock classi fication.

以某轨道交通二期工程中土质围岩岩土为例，利用灰色关联度分析方法，完成对土质围岩稳定性分级影响因素的排序和筛选。

The bearing capability of reinforced broken rock arch is also discussed. The result has been applied in engineering, a soft rock roadway, and its surrounding rock got effectively controlled.

研究了锚固组合拱承载能力的理论计算问题并应用于工程实践，有效地控制了软岩巷道围岩。

Laxiwa Hydropower station is located in a high mountain valley and narrow valleys, where the regional geostress field is higher. Besides, local existence of tectonic fracture zone and size of large-scale excavation are common phenomena in this project. The surrounding rock of hydropower plant is mainly granite, which are hard and brittle rock, this kind of rock is very detrimental to the stability of the cavern.

拉西瓦水电站厂房地处峡谷山高坡陡，河谷狭窄，区域地应力场较高，局部存在构造破碎带，同时开挖尺寸规模巨大，围岩主要为脆硬的花岗岩，对洞室稳定极为不利。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。