摘  要：针对预应力混凝土管桩的特点，结合自身实践经验，提出了预应力混凝土管桩监理的工作依据及该类管桩在工程施工阶段的监控项目、控制要点、注意事项等内容。Abstract:Accordingtothecharacteristicsofprestressedconcretepilesandcombiningwiththewriterownpracticeexperience,supervisionworkbasis,supervisionitems,supervisionpoints,pointsforattentionandsoonduringtheengineeringconstructionoftheprestressedconcretepilesareputforward.

摘 要：以适量硅灰与P·O 42.5水泥复合组成的胶材，与锰渣经过拌合、成型、养护等工序后，制得锰渣轻质保温墙砖。通过强度、导热系数的回归分析，探讨了锰渣墙砖的干缩机理；通过XRD与SEM分析，对比了新旧方案下锰渣复合材料的早期水化产物与微观结构。 Abstract: The manganese slag lightweight insulation wall bricks are prepared through manganese slag and cementitious materials with silica fume and P·O 42.5 cement after mixing, molding and curing. Through the strength and thermal conductivity regression analysis, the drying shrinkage mechanism of the manganese slag wall bricks is discussed. And the hydration products at early age and microstructure of the manganese slag compound material are compared by XRD and SEM under the new and old schemes.

摘  要：通过室内试验，研究了邢台某矿区煤矸石混合料的物理、化学性能。采用均匀设计方法，设计了6组煤矸石混合料的试验配比方案，并分别对不同配合比的混合料进行饱水无侧限抗压强度试验，利用回归分析模型对试验结果进行分析，研究讨论掺合料（生石灰、粉煤灰）掺量对煤矸石混合料强度的影响。Abstract:ThephysicalandchemicalperformancesofcoalgangueintheXingtaiareaarestudiedbasedontheindoorexperiments.Byuniformdesignmethod,6groupsmixproportionschemesofcoalganguemixturesaredesigned.Andtheexperimentofcompressivestrengthwithfullwaterandnolateralrestraintiscarriedoutforthemixtureswithdifferentmixproportion.Usingtheregressionanalysismodel,theexperimentalresultsisanalyzed.Theinfluenceofthecontentsofadmixtures(quicklime,flyash)onthestrengthofthecoalganguemixtureisdiscussed.

摘  要：钢渣的化学成分和矿物组成与水泥熟料相似，具有一定的水硬活性，尤其是压碎值、磨耗率等性能突出，可作为碎石和砂的理想替代品。但钢渣潜在的体积不稳定性却制约着钢渣的应用，针对这问题，提出了一些解决途径，论述了其作为混凝土集料的应用可行性。Abstract:Steelslagissimilarwithcementinchemicalcompositionandmineralcomposition,andhassomehydrationactivity,especiallythehighperformanceofcrushingvalueandabrasionratio,whichcanusedasthesubstitutionofgravelandsandinconcrete.Buttheutilizationofsteelslagisrestrictedbythepotentialvolumeinstability.Aimingatthesteelslag’svolumestability,somesolutionsareproposed,andthefeasibilityofsteelslagasconcreteaggregateisdiscussed.

摘 要：以阳泉市某住宅工程为例，介绍了用高压注浆方法处理煤层采空地基的施工技术和工艺。经检测，高压注浆应用于煤层采空地基的处理完全可满足建筑承载力的要求 Abstract: Taking one residential project of Yangquan as an example, the construction technology and process of coal mined-out ground by high-pressure grouting method are introduced. Through the tests, the application of high-pressure grouting on coal mined-out ground can totally satisfy the requirement of building bearing capacity

摘 要：以成都某工程为例，叙述了高层建筑中以隔振垫、离心玻璃棉和声默围边隔声垫为主要消能隔振材料的机房隔振地坪施工技术。该隔振地坪可使机电设备与建筑结构完全分开，能有效降低各类机电设备向外传递振动和噪声。 Abstract: Taking one project in Chengdu as an example, the construction technology of room vibration isolation floor using vibration isolation pad, centrifugal glass wool and sound silence surrounding isolation pad as the main energy dissipation vibration isolation materials in high buildings is introduced. This vibration isolation floor can detach the electromechanical equipment and building structure completely, which can efficiently reduce the outward transmission vibration and noise of the electromechanical equipment.