on the basis of hoek-brown strength criterion and the limit equilibrium method, a method calculating the tip resistance of socketed piles is put forward.

the development of the compressive strength of fly ash based mineral polymer at different curing temperature as well as at normal temperature after curing in high temperature for one day were studied.

研究了不同养护温度下粉煤灰基矿物聚合物的抗压强度，以及经过1d高温养护后常温条件下强度的发展特点。

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mix designs and specimen preparation with different manufacturing process of sulfur rubber concrete ( src) were investigated. compressive strength with or without corrosion, toughness and microstructure were studied and discussed.

研究了硫磺橡胶混凝土（SRC）的配合比设计方法、制造工艺、抗压强度、耐腐蚀性能、韧性、微观结构等。

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the result shows that the trough structural reliability is much more sensitive to compressive strength ( rc) than to other parameters and the sensitivity of rc in the dangerous parts is smaller than that in other parts.

计算结果显示，槽身可靠度对抗压强度（Rc）更敏感，且在可靠指标较低的槽身危险部位，Rc的敏感性较其他部位小；

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the triaxial compressive strength of rock is one of the most important formation parameters of drillability, and is the principal basis of polycrystalline diamond compact ( pdc) bits selection.

岩石三轴抗压强度是表征地层抗钻性质的重要参数之一，是PDC钻头优选的基础和主要依据。

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three methods of the modification for recycled tire rubber powder all can improve the compressive strengths in 28 days of cement mortar obviously.

三种改性方法对胶粉水泥砂浆28d抗压强度均有明显改善作用。

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in chapter four, bp models are established. the relationship between macroscopic and mesoscopic level of concrete is proposed from two sides: the strength predictive model predicts the compression strength of concrete with mean distribution radius and four different porosities;

第四章建立了BP神经网络模型，从两个角度尝试建立了混凝土细观与宏观之间的联系：强度预测模型从细观结构出发，通过混凝土孔隙平均分布半径和4个分孔隙率预测抗压强度；

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the indexes of unconfined compressive strength and saturation shear strength are increased observably after immersion when using the lime-ash with sh, and the water stability is improved effectively.

掺加SH后，浸水后的无侧限抗压强度和饱和抗剪强度指标明显增大，水稳性得到显著提高。

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compressive strength and microstructure of si-ni-b bond pcd produced at various temperature and pressure

不同压力温度条件下聚合的Si-Ni-B中介聚晶金刚石（PCD）抗压强度及组织特征研究

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study of high performance concrete compressive strength of 350km/ h passenger-dedicated lines

时速350km客运专线高性能混凝土抗压强度研究

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the compressive strength of each specimen is tested after 3 days, 7 days, 14 days, and part of 21 days.

将各配方的试件做了3d、7d、14d、部分21d的抗压强度测定。

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the graphitization extent of c/ c composite was investigated by x-ray diffraction, the resistivity and compressive strength of c/ c composites were monitored by the four-point probes and electronic universal testing machine, respectively.

通过X射线衍射、四探针测试仪及电子万能试验机等表征了C/C复合材料的石墨化度、电阻率以及抗压强度。

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one important application of frp composites is as a confining material for concrete. frp confinement can enhance both the compressive strength and the ultimate strain of concrete significantly.

其中一项重要的用途就是通过缠绕FRP提供的约束来加固修复钢筋混凝土柱，FRP约束钢筋混凝土柱的抗压强度和延性都得到很大的提高。

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the composite of calcium phosphate cements/ polyglycolic-polylactic acid was prepared. the compressive strength, x-ray diffraction and scan electron microscope analysis of cpc-plga were studied.

方法制备了CPC-PLGA复合材料，测定其抗压强度，通过X射线衍射（XRD）分析固化产物的物相组成、扫描电镜（SEM）观察其微观结构，并与单一的CPC材料进行对照。

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the equation of correlation between compressive strength and elastic modulus of concrete is derived on the basis of modified burger's model.

本文用修正的Burgers模型推导出砼抗压强度与弹性模量的关系式。

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the result indicates that the pressure resistant strength of the compounded& mixed fertilizer is 27.8 n under this condition, the total effective nutrient 31.6%, ph value 6.2, granularity rate 95.8%.

结果表明，在此条件下制得的复混肥抗压强度为27.8N，总有效养分为31.6%，pH值6.2，成粒率95.8%。

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based on the direct shear, sensitivity of unconfined compressive strength, standard consolidation test, x-ray diffraction ( xrd) and sem, the mechanism and strength characteristics of treated sludge are analyzed.

通过直接剪切、无侧限抗压强度灵敏度、标准固结试验、孔隙分析X射线衍射及扫描电镜等现代测试手段，研究了改性淤泥的强度特性，探讨固化剂的改性淤泥的机理。

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the compression strength of electroless plating diamond is increased obviously, and the heat etching resistance of ti plating and the ni plating diamonds are better than cu plating diamond.

经化学镀后的金刚石抗压强度明显提高，镀Ti和镀Ni的金刚石抗热蚀能力较好。

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compressive strength analysis of cast iron based on the mohr-coulomb criterion

基于Mohr-Coulomb准则的铸铁抗压强度分析

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considering the dimension of brick and hole shape synchronously, the strength of p type circle and m type rectangular perforated brick masonry is equal.

同时考虑砖的尺寸和孔型时，P型圆孔多孔砖砌体抗压强度与M型矩形孔多孔砖的相同；

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study of axial compression for frp confined concrete circular columns

FRP约束混凝土圆柱体轴心抗压强度研究

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