Foundation settlement, which plays an essential role in subgrade settlement, is highly concerned in high-speed railroading.
高速铁路对路基沉降的要求十分严格,地基沉降是路基沉降的重要部分。
Based on the construction, discussion is made on the causes of formation of highway unevenness, and given the preventions in embankment and subgrade settlement.
从施工的角度阐述了道路不平整的形成原因,并从路堤填筑前原地面处理、路堤填料的要求、路基填土压实、路面基层施工等方面分析了预防措施。
This paper deals with the application of the improved gray theory to the prediction of subgrade settlement and improvement of equally spaced gray model GM (1.1).
讨论了灰色系统理论在路基沉降预测中的应用,并对等间隔的灰色模型GM(1,1)进行了改进,建立了任意间隔的非时序改进灰色模型。
This paper analyzes the reasons of subgrade settlement, expounds the measures for preventing the subgrade settlement, and probes into the methods for the treatment of subgrade settlement.
分析了路基沉陷产生的原因,阐述了预防路基沉陷的措施,探讨了路基沉陷的处理方法。
The paper bridge transition section Approach Road subgrade settlement problem, through the analysis of its causes, the law of subgrade settlement and subgrade settlement governance measures.
论文针对路桥过渡段引道路基的沉降问题,通过其原因分析,对路基沉降的规律和路基沉降的治理措施进行了研究。
As deep digging and high filling, settlement calculation of high subgrade has been gradually becoming a key problem in the building of high class highway in mountain areas.
由于深挖高填造成填方高度过大,高填方路基沉降逐渐成为山区修建高等级公路迫切需要解决的问题。
Thus, predicting the settlement and displacement potential in subgrade filling by finite element method, the paper conducts treatment ahead of time.
所以在有限元对路基填筑可能引起的沉降和位移进行预测后,进行提前处理。
The speed of train is high, to ensure regularity of the upper track and reduce maintenance workload, the requirements of settlement after construction of subgrade are extremely stringent.
列车行驶速度高,为了保证上部轨道结构的平顺性,并减少运营期间的维护工作量,对路基的工后沉降有着极其严格的要求。
Under the effect of load, the settlement of subgrade will lead to the lateral distortion of soft soil.
在桥头路基荷载的作用下,地基发生沉降,软土会发生一定的侧向变形。
Reinforcement of soft soil foundation with dusting pile is capable of effectively lowering the settlement of subgrade, lessening the vehicle bump at bridge head.
通过使用粉喷桩加固软基,有效降低路基沉降,减少桥头跳车现象。
The most pivotal technical problem of building high-speed railway on soft soil is strictly controlling post-construction settlement of subgrade and its elastic deformation of top surface.
在软土地基上修建高速铁路,其最关键的技术问题就是严格控制路基的工后沉降及列车高速运行时路基顶面的弹性变形。
Based on the feature of subgrade construction and with the analysis of the observed settlement data, a series of stress-strain isochrones are arranged in this paper.
本文基于高速公路路基填筑的特点,通过实测沉降资料的分析,整理出一系列应力应变等时曲线。
Rockfill stuff and subgrade soil should be studied on settlement rule for high rockfill embankment respectively, for the differences of the pressurized state and settlement rule.
由于填石料与地基土的受力性能不同,沉降规律也大不相同,因此提出先分别考虑路基和填石料的变形,然后再叠加的方法来研究高填石路堤沉降规律。
High-speed rail requires not only high strength subgrade, but also the high control of the settlement.
高速铁路不仅要求路基具有较高的强度,而且对沉降的控制提出更高的要求。
Therefore, this paper mainly studies settlement calculation and forecast of soft soil subgrade by vacuum preloading.
正是如此,本文主要研究了真空预压法处理软土路基时的沉降计算及预测问题。
The settlement of subgrade has a relationship to stress, strain, strength and stability of subgrade.
路基的沉降变形与路基中的应力、应变、强度和稳定性等有关。
To sum up, this paper studies the settlement calculation and forecast of soft soil subgrade by vacuum preloading and obtains some useful conclusions which can guide construction better.
综上,本文对真空预压加固软土路基时的沉降计算及预测做了一定的研究,得出了一些有用的结论,可以更好的指导工程施工。
The settlement and deformation behavior of the soft clay subgrade are analyzed in detail before and after the opening to traffic.
详细分析了通车前和通车后软土路基的沉降变形特征。
The explicit model is validated based on undrained cyclic test data. It will be more effective to calculate the long-term settlement of subgrade under traffic loading with the proposed explicit model.
考虑主应力轴偏转角循环加载的饱和软黏土显式模型可更为有效地预测路基长期沉降。
ABSTRACT The settlement of subgrade has a relationship to stress, strain, strength and stability of subgrade.
路基的沉降变形与路基中的应力、应变、强度和稳定性等有关。
ARMA (1, 1) model is established to forecast the settlement during constructing subgrade and the time for next load.
建立了ARMA(1, 1)模型来对公路施工填筑期间的沉降进行短期预测,进而对下一级加载的时间进行预测。
Therefore, the settlement mechanism of different connection between pile and raft and its application in railway subgrade are researched in this paper.
因此,本文对桩-板不同连接方式的沉降机理及其在路基中的应用进行了研究。
On one hand, the form of abutment foundation is different from that of high-filled subgrade, which results in differential settlement;
一方面桥台地基和基础形式与高填方路基形式不同,导致桥头紧邻两部分的荷载和承载方式不同,易于产生不均匀沉降变形;
Applying for MARC software, three-dimensional numerical model of differential settlement at bridge-subgrade transition section was built.
应用MARC软件,建立路桥过渡段差异沉降的三维计算模型。
Applying for MARC software, three-dimensional numerical model of differential settlement at bridge-subgrade transition section was built.
应用MARC软件,建立路桥过渡段差异沉降的三维计算模型。
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