Fundamental Study on Preventive Measures of Slope Failure and Reinforcement Method for the Bearing Capacity of Granular Assemblies

边坡破坏防治措施及粒状组合体承载力加固方法基础研究

基本信息

批准号：
07555154
负责人：
MATSUOKA Hajime
金额：
$ 3.01万
依托单位：
Nagoya Institute of Technology
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
1995
资助国家：
日本
起止时间：
1995 至 1997
项目状态：
已结题

项目摘要

1) Mechanism and Preventive Measures of Slope FailureMany model tests of granular soil slope have been conducted to study the failure mechanism and effective reinforcement of granular soil slope. It was found that the granular soil slope behaves as the surface failure not circular slip failure while the slope of soil with cohesion behaves as circular slip failure. The angle of granular soil slope at failure is almost equal to the internal friction angle. The angle of the slope of soil with cohesion at failure is almost equal to that obtained by as circular slip method. The results of model tests also show that if the "trigger" of the failure is improved, the reinforcement method is very effective.2) Reinforcement Method for the Bearing Capacitya) The simulation on the bearing capacity test of the footing improved by "soilbag" was conducted to study the mechanism of this improvement method. The reason why the bearing capacity increases by using "soilbag" and the relation between the bearing capacity and tension of the "soilbag" have been found out.b) The reinforcing method by means of wrapping up a part of the soil foundation has been introduced to increase the bearing capacity of the foundation. The model tests of the bearing capacity on aluminum rods and real soils improved by "soilbag" and the full scale model tests of the bearing capacity on ballast foundation through the railway sleeper under dynamic and static load have conducted to study the effects of "soilbag" in improvement of soil foundation. The test results show the bearing capacity of the foundation increases greatly and the deformation of the railway sleeper and ballast foundation decreases after wrapping up a part of foundation.

1）已经进行了颗粒状土壤斜坡模型模型测试的机制和预防措施，以研究颗粒土壤斜率的故障机制和有效增强。发现颗粒状的土壤斜率是表面故障而不是圆形滑动故障的行为，而具有内聚力的土壤的斜率表现为圆形滑动破坏。失败时颗粒状土壤斜率的角度几乎等于内部摩擦角。失败时具有内聚力的土壤斜率的角度几乎等于通过圆形滑动法获得的角度。模型测试的结果还表明，如果改善故障的“触发”，增强方法非常有效。2）轴承容量的加固方法）在“土壤袋”改善基础上的轴承能力测试中的仿真方法。进行了研究这种改进方法的机制。通过使用“土壤袋”以及轴承能力和“土壤袋”的张力之间的关系增加的原因。提高基金会的承载力。 “土壤袋”改进了铝杆和真实土壤的轴承能力的模型测试，以及在动态和静态载荷下通过铁路卧铺对轴承能力的全尺度模型测试，以研究“土壤袋”的影响。改善土壤基础。测试结果表明，基础的轴承能力大大增加，并且在包裹一部分基础后，铁路卧铺和压载基础的变形减少了。