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- rock pressure theory 岩石压力理论
- The characters of deep mine are larger raw rock pressure,larger ore body plasticize,mine pressure severe appearance. 深矿井的特征是原岩压力大、矿体塑性大及矿山压力显现剧烈。
- The caving of thick and strong roof stratum,key stratum,causes tremendous rock pressure in mine. 采场上覆岩层中的厚硬岩层,即厚硬关键层,其冒落会造成剧烈的矿山压力显现。
- During the process of computation the traditional Ranken's earth pressure theory and that of Coulomb's were reasonably simplified. 设计计算时,对传统的朗金土压力和库仑土压力理论进行了合理的简化。
- For large nonelectrolyte molecules, the equation of modified internal pressure theory gives results in better agreement with the experiment than others. 内压力理论改进公式的计算结果不仅能预言盐析常数的符号, 也能指出盐析常数大小的顺序, 理论值与实经值符合较好。
- Construction practice proves that the jacking base of jacked culverts designed with Coulomb's earth pressure theory are safe and reliable, and its volume of work are reduced. 简述了应用库仑土压力理论,设计软基顶涵顶背的方法,实践证明,用库仑土压力理论设计的顶背安全可靠,并能减少顶背的工程量
- Accoording to the result on observation of rock pressure,adaptability of telescopiform bolt in soft rock road and reasonable structural parameter are analysed. 根据矿压观测结果分析了可拉伸锚杆对软岩巷道支护的适应性及其合理的结构参数。
- According to the underground pressure theory, which takes stratum movement as key matter, the nonelastic area occurs in coal body under the action of underground pressure. 根据“以岩层运动为中心”的矿山压力理论,煤体在矿山压力作用下将出现非弹性区。
- On the basis of the observation to rock pressure,the strata behavior regularity of 93305workface is summarized,and the reason is analyzed,rome reasonable advices is put foreward. 在矿压观测的基础上,总结了该工作面的矿压显现规律,并对原因进行分析,最后就工作面的开采提出合理建议。
- This text studies traditional folk house from the point of view of technology, including climatologic, architectural physics, hydraulics and wind pressure theory. 本文运用气候学、建筑物理、水力学和风压理论,从技术角度对传统民居进行了研究。
- On the pit plane, this paper uses Coulomb抯 earth pressure theory to calculate active soil pressure.At the same time, the fulcrum is considered as elastic node. 在基坑平面以上,采用库仑土压力理论计算主动土压力,将支点处看作是施加了一个外力和一个单支点进行分析计算。
- Based on measured rock pressure and experimental data under thick watered loose bed of Wanbei mining area,dimorphism and mutation characteristics of ultrathin bedrock working face roof are discussed. 以皖北矿区厚含水松散层下超薄基岩开采工作面实测矿压资料与实验数据为依据,论述了超薄基岩工作面顶板的风化变异特征。
- Based on measured rock pressure and experimental data under thick watered loose bed of Wanbei mining area, dimorphism and mutation characteristics of ultrathin bedrock working face roof are discussed. 摘要以皖北矿区厚含水松散层下超薄基岩开采工作面实测矿压资料与实验数据为依据,论述了超薄基岩工作面顶板的风化变异特征。
- Under composite roof inthe No.2 seamof Tunlan mine,bolt-rope strenthenningsupporttechnique is utilized to control roof ad decrease rock pressure,which has achieved good economic bene-fit. 介绍了屯兰矿在2号煤层复合顶板条件下,采用锚索补强支护技术,有效地控制了巷道顶板离层,减轻了矿山压力显现现象,取得了较好的经济效益。
- The paper reviews state of the art ground pressure theory of thin slab in coal mining such as scientific concepts, foundation argumentation, theoretical development and the field application. 文章阐述了采场薄板矿压理论建模的基本思想、立论依据、理论成果及其在煤层的普通开采和放顶煤开采中的实际应用情况;
- Comparing with the traditional Rankine's earth pressure theory and the Coulomb's earth pressure theory, this method is applicable within a broader scope, and the results conform better to reality. 与传统的朗金和库伦计算方法相比,该方法应用范围较广,计算结果较为符合实际。
- The relationship of roadway surrounding rock pressure and supporting performance is interacting and counteracting.Only coordination between them can make possible a better support. 巷道围岩压力与支护能力是一个相互作用与反作用的关系,两者之间必须协调才能取得较好支护效果。
- The rock was honeycombed with passages. 岩石上有许多蜂窝状的小孔。
- This article narrates the rock pressure measurement methods for working face under the shallow burial and the thick, fluid sands in detile,analyzes and gets the regulations of rock pressure phenomena. 本文叙述了厚流砂层下浅埋工作面的矿压观测方法,分析得出了其矿压显现规律;
- Many young rock hounds grow up to be geologists. 许许多多爱好收集岩石的少年,长大后成了地质学家。