碎石桩法与强夯法联合工艺处理软土地基应用研究   总被引：3，自引：0，他引：3  

王月香  陈茂林 《岩土工程技术》2001,(2):101-106

就碎石桩法与强夯法结合处理软土地基工艺的机理作一探讨，并结合工程实例，，就实际存在的几点问题进行了讨论。  相似文献   

泥浆含砂率对桩基质量的影响     

宋明智  许谷星 《江西地质》2001,15(4):301-304

本文通过对泥浆中颗粒的沉降特性分析，从量上得出泥浆性能对泥浆中颗粒的悬浮携渣能力。泥浆是一流变性的流体，对泥浆性能的把握，应综合考虑，而不偏向于某个指标。提出了在实践中对泥浆的正确使用和泥浆性能取用的建议。  相似文献   

未来上海地区海平面上升对土压缩模量的影响分析     

杨红禹  田春德 《水文地质工程地质》2001,28(2):25-27

未来上海地区海平面上升将引起地下水位抬升，将会对土压缩模量E产生影响，Es是土的最重要的物理力学参数指标之一，尤其在地基沉降计算中具有重要意义。本文主要针对土压缩模量Es的预测分析工作，进行了地基变形的;探讨研究，供交流参考。  相似文献   

周口电信枢纽楼基坑降水设计方案技术经济分析     

郭精超 《水文地质工程地质》2001,28(2):42-44

通过分析两种不同的基坑降水设计方案，阐述了降水技术要求，并介绍周边建筑物不均匀沉降的防治措施。  相似文献   

油罐地基不均匀沉降原因分析及纠偏加固处理方法     

张栋材 《水文地质工程地质》2001,28(5):69-72

某油罐因地基发生不均匀沉降而倾斜，本文通过对油罐发生均匀沉降的原因分析，提出了倾斜油罐纠偏设计及地基处理方案，叙述了地基处理及纠偏施工方法，施工处理后经过半年的使用观察，效果良好。  相似文献   

Simple formulations of ground impedance functions for rigid surface foundations     

T. Nogami  K. Konagai  A. Mikami 《Soil Dynamics and Earthquake Engineering》2001,21(6)

A differential equation is formulated for the dynamic response of ground medium by using a simplified ground model. Applying Galerkin's procedure for weighted residual, this equation leads to a governing equation only at the ground surface. The equation indicates that the ground surface behavior can be computed even further by a simplified model. By solving the governing equation for the boundary conditions along the surface, expressions in simple closed forms are developed for the dynamic response analysis of a massless rigid foundation that rests on the ground surface. Despite their significant simplicity, the developed expressions compute the values very close to those computed by far more complex rigorous solutions. They are found to be capable of capturing the important characteristics of the dynamic ground behavior well.  相似文献   

An experimental investigation of water level effects on the dynamic behaviour of a large arch dam     

Jean Proulx  Patrick Paultre  Julien Rheault  Yannick Robert 《地震工程与结构动力学》2001,30(8):1147-1166

The need for full‐scale dynamic tests, which are recognized as the most reliable method to evaluate a structure's vibration properties, is increasing as new analysis techniques are developed that take into account the complex interaction phenomenons that occur in dam–reservoir–foundation systems. They are extremely useful to obtain reliable data for the calibration of newly developed numerical methods. The Earthquake Engineering and Structural Dynamics Research Center (CRGP) at the University of Sherbrooke has been developing and applying dynamic testing methods for large structures in the past 10 years. This paper presents the experimental evaluation of the effects of the varying water level on the dynamic response of the 180 m Emosson arch dam in Switzerland. Repeated forced‐vibration tests were carried out on the dam during four different periods of the reservoir's filling cycle during a one‐year span. Acceleration and hydrodynamic pressure frequency responses were obtained at several locations while the dam was subjected to horizontal harmonic loading. The variation of the resonant frequencies as a function of the reservoir level is investigated. A summary of the ongoing numerical correlation phase with a three‐dimensional finite element model for the dam–reservoir–foundation system is also presented. Copyright © 2001 John Wiley & Sons, Ltd.  相似文献   

膨胀土作为桩基持力层的实验研究   总被引：1，自引：0，他引：1  

胡钧  张建新 《上海国土资源》1996,(3):33-37

根据对邯郸膨胀土中桩基的实验研究,认为膨胀土具有一定埋深时,可作为良好的桩基持力层;通过3种桩型应用情况的分析比较,论证了扩底桩是膨胀土持力层上理想的桩基形式。  相似文献   

浅议高压喷射注浆技术     

周苍松 《湖南地质》1992,11(4):324-329

高压喷射注浆技术是近年发展起来的一种基础处理新技术,它是利用高压载能介质将软弱土体冲切破碎后注入固结浆液在原位混合凝固,达到强化地基的目的。该技术多用于深层软土地基加固,建造堤坝防渗帷幕及高强度的防渗挡土墙等。本文就这项新技术及其机具设备与安装、施工程序、应用前景作了概括介绍。  相似文献   

威海市“海联大厦”强夯法处理高填土,松软土地基工程实录   总被引：1，自引：1，他引：1  

龙岩峰  高贵才 《岩土力学》1995,16(1):78-83

强夯法处理地基在我国应用发展已有十几年的历史，本文介绍的威海市“海联大厦”地基处理工程，以较大的吨位及能级进行高填土、松软土地基处理取得成功，成为威海市首例以较大吨位及能级强夯处理地基工程，文中着重介绍了方案选择、强夯设计、强夯施工及效果检测情况，综合地进行了技术、经济效果评价。  相似文献