| 1. | A new method for compaction degree continuous measure 一种新型压实度连续检测方法 |
| 2. | Compaction degree is the key index to control construction of embankment 摘要压实系数是控制路堤填筑的关键性指标。 |
| 3. | Research of testing methods of compaction degree of soil - stone mixed material roadbed 关于土石混合料路基压实度检测方法的探讨 |
| 4. | It is found from the monitoring data that the response of the acceleration transducer is linearly relative to the compaction degree of gravel soils 在大量室内试验数据的基础上,研究了振动压实过程中加速度电信号响应随碎石土密实度的变化规律,发现二者具有显著的线性相关性。 |
| 5. | To analyze the loess characters of compression , collapsibility and expansion after unloading , water content and the compaction degree of the loess is changed in the test which indicates that the loess with high compaction degree and low water content still has collapsibility 分析了不同含水量、击实度下黄土的压缩性、湿陷性和卸荷膨胀性,试验表明在高击实度、小含水量下重塑黄土仍然有湿陷性。 |
| 6. | The general analysis of dip - dropping , spin - coating method and electrophoretic deposition techniques shows that the compaction degree of alumina film fabricated by the former two methods are higher than those prepared by the last one . besides , spin - coating method is the most efficient and fast way to raise film thickness 综合分析提拉法、旋覆法和电泳沉积工艺,采用前两种工艺制备的氧化铝膜的致密性优于末者,并且三者中旋覆法最能快捷有效地提高膜厚。 |
| 7. | By the large quantity of indoor and field soil mechanics test , this paper investigated physics and mechanics property of xigeda stratum and xigeda compounding filling , profoundly and systematically studied on shearing strength , cbr ( including indoor cbr and field cbr ) and intensity feature of xigeda compounding filling . the new achievement and cognition as follows : ( 1 ) cbr value is decided by moisture content and mudstone content of xigeda compounding filling . the filling material can satisfy minimum intensity standard of express highway when mudstone content is less than some fixed value , ( 2 ) this paper established field cbr standard value which can synthetically evaluate the filling material nature and field compaction degree . ( 3 ) the optimal compacting mean of xigeda compounding filling is hard oscillation first and weak oscillation later , not traditional way which is weak oscillation first and hard oscillation later . ( 4 ) this paper put forward the conception of optimum moisture content in construction different from optimum moisture content of indoor impaction 本文以昔格达填料强度特征为研究对象,通过大量的室内及现场试验,从昔格达地层岩组的物理力学性质、昔格达填料的物理性质入手,对昔格达填料的抗剪强度、室内承载比及现场承载比特征进行了较系统地研究,获得了如下认识及进展:昔格达混合填料承载比值受填料含水量及其中泥岩含量的影响,当泥岩含量小于一定值时,昔格达混合填料具有较高的承载比值,能够满足高速公路对填料的最低强度要求;建立了综合评判昔格达填料性能及现场压实效果的现场承载比( cbr )标准;对于昔格达填料而言,最佳的碾压方式为先强振后弱振而不是传统的先弱振后强振;提出了与室内击实最优含水量相区别的施工最佳含水量的概念。 |
| 8. | Using mounts of r - surface wave data sampled by practical engineering of dynamic compaction . the compaction degree and uniformity of dynamic foundation are systematically discussed in the thesis . the collected data of in situ testing , combined with r - wave velocity parameter , was used to develop the way to estimate the bearing capacity by multi - parameter and neural network 通过实际强夯地基处理工程的大量瑞雷面波资料的采集、资料的处理,以及成果的分析,对强夯地基的压实度、均匀性进行研究和系统性探讨;收集了原位测试数据,并结合瑞雷面波波速参数,开展多参数拟合和神经网络预测地基承载力的研究。 |