钢管混凝土框架骨架曲线研究

以钢管混凝土统一理论为基础,从截面层次的恢复力模型出发,钢管混凝土柱构件选用三线型弯矩~曲率滞回模型;钢梁采用双线型弯矩-转角滞回模型;钢筋混凝土梁选用三线型弯矩-转角滞回模型。使用非线性分析程序IDARC分析钢梁-钢管混凝土柱和钢筋混凝土梁-钢管混凝土柱两类框架结构的骨架曲线,程序结果和试验结果吻合良好。并进一步研究了轴压比、含钢率、混凝土强度和钢材强度等对结构骨架曲线的影响。研究结果不仅为钢管混凝土框架结构的应用推广提供了必要的理论基础,而且对钢管混凝土抗震设计具有较好的参考价值。     

利用线性内插形成DTM进行土、石方量计算的程序设计

本人在工程施工的过程中,根据填挖平衡的原则,利用线性内插形成DTM的原理进行了土、石方量计算的程序设计,并在一工地投入使用,提高了工效。     

泾阳MS4. 8地震的磁效应研究

以陕西关中地区地磁垂直分量(Z) 作为计算暴时扰日变化D_S (Z) 的加卸载响应参量,从D_S (Z) 的响应比值P (Z) 的变化表明, 在泾阳地震前, 靠近震中的泾阳、乾陵二台出现P (Z) ≥3. 5的异常变化,而周至、华阴台却没有这种异常变化。这表明加、卸载响应比方法可用来预测陕西关中地区的中强地震。同时,也表明在此方法的使用过程中,必须考虑台站所处的地理位置及地质构造条件。     

应用抽芯验桩技术时应注意的几个问题

讨论并提出了抽芯验桩孔的孔径、桩身混凝土芯样强度换算、设计桩身混凝土抗压强度标准值的取定原则和方法     

Characteristics and forming mechanism of laminae fine-grained sedimentary rock of the Paleogene Funing Formation in Gaoyou and Jinhu sags,Subei Basin

The deep-water fine-grained deposits can be not only the source rock,but also the reservoir of unconventional oil and gas. Combined with high-precision centimeter-scale core observation,thin section identification,X-ray diffraction whole rock analysis,trace element test and scanning electron microscopy(SEM)analysis,the laminae characteristics and the genesis mechanism of semi-deep to deep lake fine-grained sedimentary rocks in the Member 2 of the Funing Formation are investigated in the Gaoyou and Jinhu sags of the Subei Basin. The results show that the semi-deep and deep lake fine-grained sedimentary rocks of the Member 2 of the Funing Formation in the Gaoyou and Jinhu sags are complex in lithology,and the laminae with different colors are formed by the mixture and superposition of various material components. The horizontal bedding developed in the fine-grained sedimentary rocks can be further divided into thin-laminated and thick-laminated sedimentary structures,whose macroscopic,microscopic characteristics and the composition are different. The complex forming mechanism of laminae includes two aspects: Formation process and preservation process. The generation(or the input)and the precipitation of each component have seasonal significance during the formation of laminae,whereas the preservation of the laminae could be mainly related to the water depth in the study area.     

Research advances,geological implication and application in Ordos Basin of the “pore-size controlled precipitation” in diagenesis of carbonate rock reservoir

Based on the discovery of pore-size controlled mineral precipitation and cementation heterogeneity in carbonate rock reservoirs,the state of art and the geological implications are summarized,referring to the fluid-rock interaction and chemical hydrodynamics in porous media. (1)The pore-size controlled precipitation phenomenon is common in geological environments,as shown by the heterogeneous cementation and eventual features that the large pores are filled while small pores can be preserved. Related studies are mainly divided into three aspects,including pore structure observations at different scales,numerical simulation of fluid-rock interaction and mineral precipitation experiment. (2)The kinetic models related to surface chemistry can be used to explain the heterogeneous precipitation affected by pore-size distribution. The larger interfacial tension and mineral crystal curvature in the micropores result in the much higher effective solubility.Thus the fluids in micropores can maintain a higher supersaturation with no minerals precipitation. (3)The pore-size controlled precipitation leads to the selective preservation of micropores. It means that the much larger pores tend to be cement-filled while the smaller pores are preserved in the case of coexistence of pores at different scales. The impacts of cementation types on the overall permeability of rock are different. The pore-size controlled precipitation phenomenon is also worthy of attention in the research of geothermal development and geologic sequestration of carbon dioxide. In the last part, based on the heterogeneous cementation and porosity distribution of the Majiagou Formation in the Ordos Basin,we study the impacts of diagenetic fluids properties,origin and cementation patterns on the evolution of pore structure and high-quality reservoir distribution.The discovery and emphasis of pore-size controlled precipitation is of great theoretical significance to our understanding of the complex fluid-rock interaction process,which provides a new perspective for reservoir diagenesis and pore preservation.     

浅层地震折射波法配合电测深法在花岗岩地区找水

通过在花岗岩地区十余年成功的找水实践,总结并提出一种简便而高效、具有很高成功率的常规综合物探方法,并通过３ 个实例介绍了其应用效果。     

巴丹吉林地区中生代地层区划

从原始塔里木板块的演化入手,结合构造单元的划分,将巴丹吉林地区中生代地层划分为塔里木地层区的北山地层分区、阿拉善地层分区（包括北缘小区和南缘小区）和河西走廊地层分区,基本理顺了各分区（小区）中生代地层的命名系统,为研究各分区的沉积 构造古地理演化和恢复中生代原形盆地奠定了基础     

油井增产措施经济评价

油井增产措施有多种类型, 不同措施会带来不同的增产效果, 但又都有不同的成本组合.提出了一种对油井增产措施的经济评价的改进方法.该方法第一步是措施后累积增产量的预测, 第二步是投资估算和成本估算, 最后是对方案进行净收益分析、经济极限分析和敏感性分析, 给出了某油井的实际评价结果, 证明了该方法的有效性.      

可容空间与沉积环境变化对砂,砾岩自组织程度的影响

利用分开几何学原理研究了可容空间与沉积环境变化对砂、砾岩自组织程度的影响。通过研究表明,层序由水进体系域演化到高体系域,自组织程度不断降低。滩坝砂、砾岩沉积与辫状分流河道沉积的自组织程度相近;而盆底扇砂、砾岩体颗粒分布自组织程度较差。