水泥土搅拌法在中科先进能源实验基地项目的应用

通过工程实例,文章阐述了水泥土搅拌法在软土层地区的应用,进行了复合地基设计计算,包括单桩承载力特征值和复合地基承载力特征值,给出了水泥搅拌桩设计要求以及施工工艺要点。工程实践结果表明,水泥搅拌桩技术在处理该工程软土地基工程是可靠的,合理的。     

船模螺旋桨

多叶桨和两叶桨 水中螺旋桨是现今应用最广泛的船舶推进器。 一般排水型船舶（如商船、大型军舰）使用的都是多叶螺旋桨。在功率不变的情况下,桨叶越多,桨叶间水流的相互干扰作用就越明显,因此,螺旋桨效率会随桨叶数增加而减少。但多叶桨的优点是转动平稳、振动小。     

Metastable state of clindamycin phosphate in cooling crystallization

The metastable state and nucleation kinetics of clindamycin phosphate （CP） in cooling crystallization were studied by metastable zone width （MZW） method and induction time method. By correlating the MZW experi- mental results with temperature, agitation rate and cooling rate, it is found that the correlation result shows good agreement with the change trend of MZW. The critical nucleation parameters were evaluated based on the classical theory of nucleation; both the interfacial tension and the radius of critical nucleus increased with the decrease of rela- tive supersaturation. The effect of supersaturation on the nucleation rate was analyzed. It is indicated that the new phase formation of CP is governed by mononuclear mechanism.     

浅谈深圳市布龙路特殊路基处理的应用实践

本文针对深圳市布龙路（S360核龙线）龙景立交至龙华段城市化公路改造工程软土地基的自身特点,对各种软基处理的处理方式进行技术经济比较,对该工程软土地基处理方案选择方法提出建议,选定换填处理、水泥搅拌桩为工程最终方案,为类似工程提供借鉴．     

Hydrodynamics and oxygen transfer in a novel extra-loop fluidized bed bioreactor

In this paper, the characteristics of fluid mixing time in a novel extra-loop fluidized bed were studied. The results showed that the mixing time was shortened with the increase of fluid velocity. All the discrete numbers of the reactor were above 0.2. The serial number n was 2.5 -3.0. It was judged accordingly that the reactor fluid state was continous stirred tank reactor （CSTR） mainly. When the inspiratory capacity increased the mixing time of the reactor was shortened. Thus the air input was beneficial for the fluid mixing. During the three phases mixing process, the mixing time of the reactor could be decreased by the n increase of carrier and air loading together, but the change was not significant. The parameters affecting the reactor fluid state were fluid velocity, inspiratory capacity and carrier. KLa could be increased with the air loading increase, and at the same gas/liquid ratio when the pressure drop was high, KL~ value was increased. The amount of carrier complex influence on KLa. As the carrier loading continued to increase, its value had been dropped but the changes was not significant, and optimization condition was found at above 800 1 000 g carrier loading （pouzzolane） or 600 g PVC. Under gas/liquid ratio of 0.8% -5.2%, KLa was （0.62-1.37）×10^-2· s^-1.     

旋喷桩施工技术在深圳地铁盾构加固区中的应用

简要介绍了深圳地铁红岭段的工程概况,对旋喷桩施工的机理及其地层适应性进行了分析,详细阐述盾构区旋喷桩施工技术和方法,通过在深圳地铁红岭段盾构加固区中的应用,达到较好的加固效果,证明了旋喷桩在地基加固的实用性,说明采用高压喷法比较适合城市轨道盾构区加固．     

煤的粘结指数(G)的混匀方法改进

着重介绍了粘结性。它是评价煤的塑性的一个指标。粘结性是指烟煤在受热后,颗粒间粘结牢固的量度。我们研究了机械搅拌方法对粘结指数的影响,发现在测定烟煤粘结指数过程中,提高粘结指数（G）值的操作关键在于混匀（即搅拌）的过程。实践及研究证明,在用机械装置对烟煤进行搅拌的前提下,适当加入30秒左右的手工预搅拌,能使煤样与专用无烟煤充分混匀,从而达到提高粘结指数（G）值精密度的效果。     

水泥深层搅拌桩的施工工艺及其施工控制

本文主要阐述了水泥深层搅拌桩在建筑工程施工中的应用及质量控制措施。文章从水泥搅拌桩的分类开始阐述,从施工准备、试桩、浆液配置与输送以及搅拌桩施工等几方面详细分析了水泥深层搅拌桩的施工工艺,并就其质量控制措施以及质量检测方法做出了简要概述。     

水泥土搅拌桩地基加固处理效果分析

水泥土搅拌桩对较弱土地基具有较好的加固效果，本从作自身的工作经验和体会，对水泥土搅拌桩地基加固处理效果进行了分析总结，以期更好地为以后的地基加固处理设计和施工服务。     

TRD工法水泥土搅拌墙在某基坑支护工程中的应用

TRD工法是地基处理中的一种全新方法。介绍了宁波东部新城中央公园地下室基坑支护工程的工程地质与水文地质情况和设计要求,重点论述了TRD工法施作水泥土地下连续墙的工艺流程、施工要点以及需要注意的问题,提出了施工质量保证措施。