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- STUDY ON AE ACTIVITY CHARACTERISTICS UNDER UNIAXIAL COMPRESSION LOADING 花岗岩破裂全过程的声发射特性研究
- The effect of sustained uniaxial compressive load on the permeability of concrete was studied by a load-permeation testing device with pressed spring loads. 用以受压弹簧为荷载的压力渗透实验装置研究了持续单向压荷载作用对混凝土的水渗透性的影响。
- Experiment study on electro-magnetic emission character of rock and soil in process of uniaxial compression loading 岩土单轴压缩过程的电磁辐射特性实验研究
- uniaxial compression loading 单轴压缩
- Based on real time CT testing, primary testing study of fatigue failure and deformation mechanism of red sandstone has been completed under uniaxial compression condition. 摘要基于对裂隙岩石的细观CT试验,对含有单一裂纹的贵溪红砂岩在单轴疲劳荷载作用下的损伤扩展机理和演化过程进行了初步的试验研究。
- Uniaxial compression might facilitate the NPC effect or weaken the PPC effect when w was located in the vicinity of w(subscript c). 在渗流阈值附近,单轴压缩可诱导NPC效应的出现,或者抑制PPC效应。
- The fractal structure of rock fracture in dam foundation of the Three Gorges Project under uniaxial compression is studied based on fractal theory. 基于分形理论,研究了单轴压缩状态下三峡坝基岩石破裂的分形结构。
- The stochastic damage constitutional law models of concrete under uniaxial tension, uniaxial compression and biaxial tension compression combination are established. 建立了混凝土单轴受拉、轴受压与双轴拉压组合条件下的随机损伤本构关系模型.
- In this paper,the unconfined uniaxial compression tests on backfills with different cement-tailings ratio in the special large-sized stope in Anqing copper mine are presented. 对安庆铜矿特大型采场不同灰砂配比的充填体进行了无侧限单轴抗压试验,根据试验测得的单轴压缩韧度参数,了解了胶结充填体的韧性性能。
- In the experiments, ordinary Portland cement (OPC) paste, C190 cement paste, marble and serpentinite specimens are selected for uniaxial compression and Brazilian tests. 在实验方面,单轴压缩与巴西试验选用纯水泥浆、C190水泥砂浆、大理岩及蛇纹岩试体;
- An experiment of rock fracturing process is conducted under uniaxial compression in order to investigate the behaviors of rock fracturing under chemical erosion. 进行了在化学腐蚀下的花岗岩单轴压缩破裂试验,利用数字显微观测系统对其实时观测。
- However, the interparticle friction did not appear to have a significant effect on the magnitude of the lateral stress developed during the uniaxial compression. 然而,颗粒间的摩擦对轴向加载时系统产生的水平应力没有很强的影响。
- The compression sensibility of CFRC is studied when the specimen is restrained around the periphery and compared to the result measured under uniaxial compression. 本文研究了碳纤维增强水泥试块在四周受约束情况下的压敏效应,并与单向受压情况下的压敏性进行比较。
- The stress-strain curves are obtained by the uniaxial compression test.The Popovics'''''''' constitutive equation is modified for CLSM by present paper. 本研究进行CLSM单轴抗压试验,取得完整应力应变关系,讨论其力学行为。
- Uniaxial compression tests were carried out for marble with intermittent pre-existing cracks by using the rock mechanics servo-controlled testing system. 摘要采用岩石力学伺服试验机,对非贯通预制裂纹大理岩进行了单轴压缩试验;
- During the rock similar material uniaxial compressive test,the deformation and strengthen character were directly affected by different material proportion and loading rate. 在岩石相似材料单轴压缩试验中,不同的材料配比和加载速率将直接影响到相似材料的变形与强度特性。
- The development of high-pressure reforming was a major contributor to reducing the compression load. 高压转化对减少压缩的负荷是一个主要的贡献。
- Large compression load required Graphite rings precompressed to 4000 psi for effectiveness of all rings. 大压缩负荷需要经过4000psi压力预压的石墨密封环以加强所有密封环的密封效果。
- Through the study of mechanical experiment, the uniaxial compression strength indices and shear strength parameters are put forward, which indicate that several typical soft rocks have strong aeolotropy, and that strength parameters are all very low. 通过多项力学试验研究,给出单轴抗压强度指标及抗剪参数,得出坝区几种典型岩组具有强烈的各向异性,其变形及强度参数均较低。
- Finally, the process of damage, failure and AE of rocks under uniaxial compression were simulated by Rock Failure Process Analysis (RFPA) according to varying strength and homogeneity. 最后,运用数值模拟软件RFPA模拟了岩石在不同强度和均质度的情况下,单轴压缩时的损伤破坏及其声发射过程。