1) large rigidity and high strength support
大刚度高强度支护
2) support strength
支护强度
1.
The increase in mining height makes the weighting of immediate roof become more violently,which requires that the support strength should increase accordingly.
由于采高加大使基本顶来压更加强烈,支架的支护强度更要加大。
2.
Based on the analysis of the existing support of wangfenggang mine,new support material is adopted in the testing tunnel,strengthening the support strength.
在分析望峰岗矿现有巷道支护的基础上,针对试验巷道采取新的支护材料,加强支护强度,把原来的一次喷浆,改为网内初喷和网外复喷,有效地控制了围岩的松动和变形。
3.
Author illustrates the significance of rational bolt pretension and support strength by studying the factors including the effect of bolt support in roadway and the characteristics of the bolt's material.
从煤巷锚杆支护的效果、锚杆材料的特性等因素来阐述合理的锚杆预紧力和支护强度的意义。
4) supporting strength
支护强度
1.
The key block mechanics analysis of roadways' roof unsteadiness in cranny rock-mass and its supporting strength design;
裂隙岩体巷道顶板失稳的块体力学分析与支护强度设计
2.
In view of the problem of deformation and damage in eoalmine roadway surrounded by soft rocks, the reasonable supporting strength is determined by testing study to effectively control roadway deformation in soft rocks.
针对煤矿软岩巷道围岩变形与破坏问题,通过实验研究,确定了有效控制软岩巷道围岩大变形的合理支护强度。
5) support height
支护高度
1.
The main parameters of the hydraulic support,such as working resistance,setting load and support height are analyzed.
对该类支架的工作阻力、初撑力、支护高度等主要参数进行了分析计算。
6) high strength and high rigidity
高强度高刚度
补充资料:高模量高强度聚合物
分子式:
CAS号:
性质: 常指杨氏模量和断裂强度分别大于100GPa和3GPa的有机聚合物。实现高强高模的途径之一是将柔性高分子进行超拉伸,使卷曲或折叠的分子链拉直,并沿拉伸方向取向成伸直链结晶;另一是合成刚性棒状液晶高分子,从根本上抑制分子链的卷曲或折叠,使分子链构象或分子链间的滑移变形大大减小,外力作用在分子链的共价键上,从而大幅度提高聚合物的强度和模量。这两种方法的代表分别有超拉伸的超高分子量聚乙烯纤维,和液晶芳香聚酰胺纤维,前者的强度和模量已达到4GPa和210GPa,后者已达到2.9GPa和110GPa。
CAS号:
性质: 常指杨氏模量和断裂强度分别大于100GPa和3GPa的有机聚合物。实现高强高模的途径之一是将柔性高分子进行超拉伸,使卷曲或折叠的分子链拉直,并沿拉伸方向取向成伸直链结晶;另一是合成刚性棒状液晶高分子,从根本上抑制分子链的卷曲或折叠,使分子链构象或分子链间的滑移变形大大减小,外力作用在分子链的共价键上,从而大幅度提高聚合物的强度和模量。这两种方法的代表分别有超拉伸的超高分子量聚乙烯纤维,和液晶芳香聚酰胺纤维,前者的强度和模量已达到4GPa和210GPa,后者已达到2.9GPa和110GPa。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条