基于AHP的新疆土地利用综合承载力研究

论文构建了一套适合区域土地承载力综合评价指标体系，并运用层次分析法确定各个指标的权重，求出每个地区的土地利用承载力综合得分并将该区土地承载力划分为4种类型区，即：低承载力区（和田地区、喀什地区、克孜勒苏柯尔克孜自治州）、中等承载力区（博州、伊犁州直属、阿克苏地区、哈密地区、吐鲁番地区、阿勒泰地区）、较高承载力区（昌吉州、巴州、塔城地区）、高承载力（乌鲁木齐、克拉玛依）。宏观上把握每个地区的土地利用综合承载力，为当地土地利用政策制定，提供一定的指导意义。     

Crustal Stress Measurement for Significant Project Construction and Its Application in Design

The hydrofracturing technique has developed into a reliable and practical method for determining the original three-dimensional crustal stress state of underground caverns,the load-bearing capacity of a high pressure cavern itself,and the high pressure hydraulic permeability of rock masses,and has also been extensively used in disposal of nuclear waste,long and deeply-buried traffic channels and high-pressure cavern engineering for hydraulic power plants.The practice shows that the comprehensive measurement of the physical parameters of the rock mass and taking full use of the wall rock load-bearing capacity to optimize the engineering design hold are very useful in ensuring the engineering safety and improving the design level.     

Earthquake‐resistant structural design through energy demand and capacity

An energy‐based earthquake‐resistant structural design method is proposed. The proposed method uses specific input energy spectra, modal or time‐history analyses, and energy distribution among structural members. For a given member strength and stiffness, a relationship between the energy attributable to damage absorbed by a member and its cumulative ductility demand can be determined. Member strength, stiffness and energy capacity are design parameters which are simultaneously used in the design. The method can avoid soft‐storey design. The damage is measured based on a cumulative basis considering earthquake magnitude, frequency, and duration. Tests have been carried out to determine energy absorbing capacities of various structural components. More efforts are needed to make the energy‐based earthquake‐resistant structural design practical, but ssimple formulations for this method are possible. Copyright © 2007 John Wiley & Sons, Ltd.     

地下水位升降对某场地地基土承载力的影响

通过工程实例，分析了对比地下水位升降对地基土的物理力学性质的影响，定量地总结了地下水位上升对地基土承载力的削弱情况。     

关于西北开发中的几个水资源问题

分析了西北水资源的特点,就生态环境用水、生态环境治理以及植树造林与沙漠治理等西部开发中的突出问题提出了一些认识。指出:西北开发必须以水为度,充分考虑区域水资源的承载能力;保护和改善西北地区生态环境的基本途径是偿还已被人类逐步夺占而本该属于自然生态系统的那一部分水源。     

某铁路大桥钻孔灌注桩工程性状浅析

通过对某铁路特大桥钻孔灌注桩单桩竖向静载荷试验、桩身轴力测试，探讨钻孔灌注桩侧摩阻力发挥的影响因素及荷载传递中的工程性状，为钻孔灌注桩的设计、施工提供参考。     

粉喷桩单桩承载力与龄期的关系研究

以100余根粉喷桩单桩载荷试验和水泥土强度试验资料为基础，运用桩与土变形的弹塑性计算模型和复合地基理论，分析了同一场区不同龄期单桩承载力的关系，探讨了桩侧极限摩阻力与桩土发生塑性变形大小的关系，得了14d与28d龄期单桩承载力二者的经验公式，该公式经试验验证具有实用价值，为缩短粉喷桩的试桩周期提供了一种简单的计算方法。     

散体材料桩复合地基极限承载力计算

以土力学及弹塑性理论为基础，分析了散体材料桩的塑性应力分布。推导出了单桩极限承载力和单桩复合地基的极限承载力计算公式。得出了提高桩体材料的内摩擦角和桩周土对桩的径向围限力是提高散体材料桩复合地基承载力的有效途径的结论。给出了工程实例，验证了文中计算公式的实用性。     

人工神经网络在桩基工程中的应用综述

对人工神经网络在桩基工程中的应用研究工作进行了回顾与评述。总结了神经网络在单桩承载力、荷载－位移关系预测以及基桩动测完整性判释等方面的技术成果与水平，并分析和探讨了进一步的研究方向和应用前景。     

在实际工程中怎样选择持力层厚度

就《规范》公式确定地基承载力时没限定持力层厚度这一不足提出了自己的看法，描述了各种地层组合关系时，总力与地基承载力之间的关系。