Relation between effective stress and swelling stress of coal body;
煤体有效应力与膨胀应力之间关系的分析
Experimental research on the swelling stress of limestone in the second coal mine of Tian'an,Pingdingshan city
平顶山天安二矿石灰岩膨胀应力的试验研究
The characteristic graph of soft rock linear swelling ratio and swelling stress and final water saturation ratio ,and related analysis results of the ratio about mud rock dry saturated absorbed water ratio and the quality contained montmorillobnite are obtained based on a large number swelling experimental results about soft rock are got.
主要研究膨胀岩的膨胀特性,用软岩膨胀测定仪对重塑试件和原岩试件进行软岩膨胀率的测定,根据大量的软岩膨胀性试验成果,找出了软岩膨胀应力与线膨胀率、线膨胀最终饱和含水率特性曲线,泥质岩干燥饱和吸水率与蒙脱石含量特性曲线的相关分析结果,采用风干或烘干的不规则试件吸水率的大小作为对膨胀岩的判别和评价的依据。
The parameters include the mixing ratio of expansive agent,the expansive diameter,the distance between water injection holes and the test of the expansive stress.
全长膨胀塑料锚杆作为一种新型的巷帮支护材料 ,其性能参数严重影响着它在工程中的实际应用 ,为此 ,作者对其性能参数进行了实验室测定 ,主要包括 :膨胀剂配比、自由膨胀直径、注水孔间距和膨胀应力 。
One is the expansive stress analysis.
膨胀应力法:定量分析混凝土中残存的fCaO,估测fCaO水化产生的膨胀应力,比较膨胀应力与混凝土抗拉强度的大小,据此评定混凝土体积安定性;沸煮法:根据沸煮前后混凝土超声波声速、劈裂抗拉强度及混凝土薄切片的变化,评定混凝土体积安定性。
In view of cracks appeared in the connecting point of post shoulder and beam for workshop steel-pipe concrete post in some steel rolling plant,the reason and the expanding cause of vertical cracks in aspect of forming of water-sulphur-calcium aluminate are analyzed,accompanying with expanding stress in concrete,and welding seams design and construction.
针对某热轧带钢厂钢卷库厂房钢管混凝土柱肩梁部出现开裂的情况,从混凝土内部形成水化硫铝酸钙伴生膨胀应力,以及焊缝设计、施工存在的问题,分析了竖向裂缝的成因及扩展,进而提出了此类缺陷的预防措施及采取加劲肋、环向圈等,使结构恢复正常使用的加固技措。
Analysis of the FEM for thermal expansion stress of BOF vessel;
BOF炉体热膨胀应力的有限元分析
,when the thickness of asbestos board is about 30 mm, the shell temperature can be controlled within 360℃ , the thermal expansion stress of the shell is only 50 % of those without asbestos board, and this can help reduce the creep deformation rate of .
对中小型转炉提出了加隔热层石棉板降低炉壳表面温度的方法,并对重钢80t转炉炉身段进行了温度场及热应力分析,结果表明:当石棉板的厚度为30mm左右时,炉壳温度就能控制在360℃以内,炉壳所受到的热膨胀应力仅为没加石棉板时的50%,有利于降低炉壳的蠕变变形速率。
Research on expansion internal stress in corroded concrete member;
受腐蚀混凝土构件中混凝土膨胀内应力的研究
Analysis of Thermal Expansion Stress and Temperature Difference Stress for BOF Shell
转炉炉壳热膨胀应力和温度差应力的分析
Experimental research on the swelling stress of limestone in the second coal mine of Tian'an,Pingdingshan city
平顶山天安二矿石灰岩膨胀应力的试验研究
Study of Simulation and Optimization on the Electro-Thermo-Stress Field and Sodium Expansion Stress Field in 300kA Aluminum Reduction Cells;
300kA铝电解槽电热应力场及钠膨胀应力的仿真优化研究
Numerical Simulation Study on Expansive Force of Lining for Tunnel in Expansive Soil;
膨胀土隧道衬砌膨胀力数值模拟研究
Analysis on Deformation Force of Solid Expandable Tubular Based on ANSYS/LS-DYNA
基于ANSYS/LS-DYNA的实体膨胀管膨胀力分析
Study of Relationship between Expansion Cone and Fluid Pressure
膨胀管中膨胀锥角与液压力关系研究
Expandable Principle Study of Adaptable and Expandable Sand Screen
可自适应膨胀防砂筛管膨胀机理研究
Study of the Compensative Effect of Micro-Expansive Concrete in Thermal Stress;
微膨胀混凝土对温度应力补偿效应的研究
To swell out or expand from or as if from internal pressure.
膨胀,肿胀由或好象由内部压力而膨胀或扩张的
Research on Spraying-Bolting-Grouting Combined Support of Swelling Soft Rock Roadway under High Stress in Deep Mine;
深部高应力膨胀性软岩巷道喷锚注支护研究
Measurement and Validation of Coefficient of Thermal Expansion of Graphite IG-110 under Compressive Stress
压缩应力下石墨IG-110热膨胀系数的测量及验证
Discussion on critical dynamic stress of lime-treated expansive soil under cyclic loading
循环荷载下石灰改良膨胀土临界动应力的探讨
Application of Screw Generation Technology in Pelletizing Plant of Jinan I&S Co.
螺杆膨胀动力发电技术在济(南)钢球团厂的应用
Research on Long-Term Expansive Deformation of Steel Fiber Reinforced Self-stressing Concrete
钢纤维自应力混凝土膨胀变形的长期性能研究
Mechanical property of hybrid fiber reinforced concrete and its application in airport
纤维混杂微膨胀混凝土力学性能及其工程应用
Tunnel Construction under High Ground Pressure and High-expansion Wall Rock
高地压应力强膨胀性围岩中隧道施工优化技术
Stress field analysis of hollow brick anchored by new expansion bolt
新型膨胀螺栓锚固下空心砖的应力场分析
The comparison about finite element analysis and normal stress analysis for bellow expansion joint
波形膨胀节的有限元分析与常规应力分析比较
CopyRight © 2020-2024 优校网[www.youxiaow.com]版权所有 All Rights Reserved. ICP备案号:浙ICP备2024058711号