| 1. | It has much more advantages in the wet seasons . the main dam is the rolled asphalt rock - fill with the concrete core in nierji project 尼尔基水利枢纽工程主坝防渗型式采用碾压式沥青混凝土心墙坝。 |
| 2. | The embankments with asphalt concrete cores are more than 80 including 20 in china and none of them has been repaired since 1955 其中沥青混凝土心墙坝有80余座,我国有20余座,自1955年至今无一修补。 |
| 3. | High asphaltic concrete core dam is one of the new developing directions in dam construction of the world . it is important to study the parameters back analysis 高沥青混凝土心墙坝是当今世界坝工领域新的发展方向之一,对沥青混凝土心墙材料进行参数反演分析具有重要的理论意义和实用价值。 |
| 4. | Combined with the behavior in 1st constructing period of maopingxi dam , nonlinear fem calculation and material parameter back analysis are applied to the maopingxi asphaltic concrete core dam 本文结合茅坪坝期施工情况,对茅坪溪沥青混凝土心墙坝进行了非线性有限元应力应变计算和坝体材料参数反演分析。 |
| 5. | At mean time , it is very important to study and adopt new dam construction techniques in the world , such as to focus on the wide application of the rock - fill concrete deck and rolled asphalt concrete core dams 同时,学习和引进国外坝工新技术,如重点推广应用的混凝土面板堆石坝和碾压式沥青混凝土心墙坝等新坝型。 |
| 6. | The rolled asphalt rock - fill dam with concrete core is one of new impervious structures in the rock - fill dams . it has very high imperviousness with ability to fit the deformation and it is easy to organize the construction 碾压式沥青混凝土心墙坝是土石坝的一种新型防渗结构,具有防渗性,能好、适应变形能力强、易于施工等特点。 |
| 7. | Abstract : according to the charateristics of the rock fill dam with an asphaltic concrete core wall , the reasonable models are chosen to simulate the rock dam body , rigid subwall and asphaltic concrete core wall , a method is suggested to investigate the interface between subwall and core wall , the local stress distribution of the core wall is taken into consideration in the calculation 文摘:结合沥青混凝土心墙堆石坝的结构特点,对堆石坝体、刚性副墙、沥青混凝土心墙分别采用了合理的计算模型,提出了刚性副墙与心墙接触面的模拟方法,研究了心墙的局部应力问题,并用该方法对某沥青混凝土心墙坝进行了计算,得出了一些规律性结论 |
| 8. | Introduces some anti - seepage high embankment dams in the world with bitumen concrete inclined core wall , and analyzes , taking the existing maopingxi embankment dam as an example , the effect of slope thereof on the stress and deformation of the wall by non - linear adhesive elastic finite element calculation changing the type and thickness of the core wall 摘要介绍世界上几座沥青混凝土斜心墙防渗高土石坝,并结合国内已建的茅坪溪沥青混凝土心墙坝,通过改变其心墙形式和厚度,并用非线性粘弹性有限元对其进行计算分析,探讨了斜心墙的倾斜斜率对心墙的应力与变形的影响。 |