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地震波法在岩堆灌浆效果检测中的应用 总被引:4,自引:2,他引:2
地震波法可明确测定不同介质中地震波的传播速度,因而可用在灌浆结构工程中的检测。本文详细阐述了地震波法在大坪岩堆滑坡体灌浆加固处理效果检测中的应用。通过对坡体在灌浆前后弹性参数的对比分析,说明用地震波法检测公路边坡灌浆加固效果是一种较好的方法。 相似文献
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广州天河软件科技园高普路建成通车后在里程147-360路段产生较大沉降,采用充填渗透灌浆法对其软弱路基进行加固处理,实践证明技术上可行,经济上合理,取得了预期的效果。介绍了充填渗透灌浆加固机理、设计方法、施工工艺以及施工质量控制措施和检验方法。 相似文献
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通过总结单液硅化灌浆法加固豫西三门峡地区湿陷性黄土地基的多个成功工程实例,介绍了该法加固本地区湿陷性黄土地基施工工艺及施工质量控制措施。 相似文献
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某化验楼因不均匀沉降,造成墙体和地面开裂,根据该楼地基松散填土具有高压缩性、性质差异大、欠固结等地质特性,采取静压灌浆法加固该地基,使其地基土承载力标准值提高了2~3倍,静压灌浆后建筑物停止沉降,效果显著。 相似文献
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袖阀管法灌浆施工质量控制 总被引:1,自引:0,他引:1
在长沙市第一污水处理厂扩建工程截污干管地基防渗灌浆工程中,采用了袖阀管灌浆法施工工艺,根据其工艺流程,主要对成孔、套壳料配方及浇注、灌浆材料以及灌浆过程等关键工序进行质量控制,并在灌浆施工过程中对所遇到的不同特殊情况采取了不同的处理方法,其工程防渗加固质量完全满足设计要求。这也表明袖阀管灌浆法适用于粘土、粉细砂砾等松散地层中的劈裂灌浆施工。 相似文献
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Ivan V. BRAGIN Georgy A. CHELNOKOV Oleg V. CHUDAEV Natalia A. KHARITONOVA Sergey V. VYSOTSKIY 《《地质学报》英文版》2016,90(1):276-284
Studied waters belong to warm(T=30-50℃),alkaline(pH=8.9-9.3),low mineralized(TDS235 mg/1)Na-HCO_3 or Na-SO_4-HCO_3 thermal waters with high content of SiO_2(up to 81 mg/l)and F(up to 3.9 mg/1),occur on modern volcano-tectonic rejuvenated areas of Eastern Sikhote-Alin orogenic belt.Low~3He concentration as well as N_2/O_2 and N_2/Ar ratios exclude influence of deep mantle fluid.New rare earth element data constrain our understandmg of water-rock interaction occurring in the water source region.Meteoric origin of waters is proved by stable isotope values varying from-71‰to-136.1‰and from-10.8‰to-18.8‰forδ~2U andδ~(18)O respectively.REE patterns reflect high pH,resultfing from water-rock interaction and oxidative conditions.Calculations of deep aquifer temperature using Na-K and quartz geothermometers show 116.8-131.1°C and 82.2-125.8℃respectively.Presence of deep faults both with abnormal thermal gradient(~45-50 K/km)define unique geochemical shape of thermal waters of Sikhote-Alin,area,where no present volcanic activity is registered. 相似文献
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土压缩模量预测回归分析方法 总被引:1,自引:0,他引:1
在土压缩模量Es的分析计算中,常用的分析方法是根据土的e-p曲线试验资料建立公式求解,本文引入了数学上的回归分析方法来探讨Es与其它各项物理力学指标参数之间的相关关系,旨在找出对Es影响最显著的指标参数,并建立最优回归方程式,以此来预测Es。研究结果表明:该方法通用性强,应用范围广,亦可推广应用于其它相关领域。 相似文献
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Using the database of automatic hydrometeorological stations, installed in the Don RIver delta and Taganrog Bay seashore, the sources of the anomalois scale water negative surge and salinization of the Azov Sea under conditions of low river flow in 2015–2016 are studied. The new schemes of stratification and advection of salty sea waters in the Don River mouth under different weather conditions, water discharge and levels are given. 相似文献
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Doklady Earth Sciences - Multiannual observations (2009–2017) by means of autonomous seiche recorders have been conducted for marine seiches with one second discreteness in the boot basin for... 相似文献
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《International Geology Review》2012,54(10):1218-1225
Copper deposits of Cuba belong to the Jurassic lead-zinc-copper, Cretaceous copper and Paleogene copper complexes, which differ substantially in their formation conditions. The island is differentiated into a number of metallogenic zones formed at the initial and early stages of the Cuba folded province. Pinar del Rio, Pinos, Trinidad and Oriente zones, of an intrageanticlinal nature, are prospective with respect to copper vein deposits of the lead-Zinc-copper complex. The Sasa and Cauto zones - intrageosynclinal - are prospective with regard to copper-pyrite and copper vein deposits of the Cretaceous complex. A metallogenic study of the island is indicated in planning the exploration of its copper prospects. -- AGI Staff. 相似文献