支护

In order to study the stability of stratified rock slope in Zhu-Cheng road and its reinforcement method, the potential deformation and slipping mechanism of slope were analyzed using insitu-investigation and stereographic projection analysis method. The numerical calculation model for stratified rock slope was founded with UDEC software. The deformation of rock mass was analyzed in the excavation procedure, and the long-short compound bolt reinforcement structure was proposed according to the deformation failure mode of stratified rock slope.

摘 要：为了研究竹城公路层状岩质边坡的稳定性及防治措施，通过现场调查和赤平投影分析边坡潜在变形滑动机理；利用UDEC软件建立层状边坡数值计算模型，分析开挖过程中岩土体的变形情况；根据变形破坏模式提出层状岩质边坡的长短锚杆交替复合支护结构。

However, the straggler theoretical analysis and uncompleted analytical methods hamper its wilder practice.

但目前对于土钉支护技术的理论分析相对落后，分析方法不够完善，这也在一定程度上限制了这一技术的继续发展。

The influence of site surroundings to the form of strutting structure should be considered.

支护结构具体形式应考虑基坑周边环境和场地空间条件的影响。

Furthermore, this paper also elicits some disciplinary conclusions by studying an actual engineering examination. So it can offer some reference and evidence to the design of the soil-nail retaining system from the traditional safety coefficient method to the more economic and scientific subentry safety coefficient method.

进而，通过对一具体工程实例的分析研究得出了一些规律性的结论，为土钉支护的设计由传统的安全系数法向更为经济、科学的分项安全系数法转变提供了参考和依据。

In addition, the theory can help the designer to select rational gallery sizes and effective supporting and constructing method, it also gives a quantitative criterion formulation that takes into account the lithological character, gallery size and lateral pressure coefficient, thus judging if shallow superincumbence is reasonable.

该理论还能帮助设计工程师选择合理的洞室尺寸和有效的支护措施和施工方法，并能对洞室的浅埋与否给出了考虑岩性、洞室尺寸、侧压系数的定量判别式。

Deep soil movement monitoring is a very important task during the excavation and sustainment of large foundation pit.

在基坑开挖和支护过程中深部土体的水平位移监测是一项十分重要的工作。

According to the actual working conditions of bolting-shotcrete supporting in coal-mine tunnel,the working mechanism of different buckets was studied,their merits and demerits were analysed,and the double-crank grab bucket with assistant linkage was proved to be an ideal choice of grabbing materials in coal-mine tunnel because its motion trace was definite and symmetric and occupied lesser space.

从巷道锚喷支护中物料抓取的实际作业环境出发，对拟采用的几种抓斗的工作机理进行了分析研究，比较了各方案的优缺点，指出辅助连杆的双曲柄抓斗的运动轨迹确定、对称，且具有在竖直方向上占用空间最小的特点，是井下巷道施工中物料抓取的理想选择，这种设计方法能够为相关抓取装置的设计起到参考作用。

The key of settling the difficulties of supporting and caving is to develop and adopt the new style hydraulic caving supports with tail beam of expansion link combined by above 2 new technologies.

全面解决支护和冒放等难题，关键在于开发和采用由上述两项新技术结合而成的新型放顶煤液压支架－伸缩杆尾梁放顶煤液压支架。

Affected by the backfilling, the tangential stress of shotcrete has a tendency is for pressure stress to be tensile stress; it is dangerous to induce the axial cranny.

对照现场实际，在近水平煤系地层中修建隧道，如有厚层硬岩层控制，只要对局部软岩层加强支护控制，是可以保证围岩的整体稳定的。

By the study, after the tunnel is timbered as the original designation, the plastic scope of the surrounding rock's distortion is controlled obviously, and the stability of surrounding rock is strengthened.

通过研究认为，隧道按原设计方案支护后，围岩的变形及塑性区范围得到明显控制，增强了长子面围岩的稳定性。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新