查询词典 roadbed

During the checking of roadbed of highway, density is an important scale to determine the quality of roadbed .

在高速公路路基检测中，密实度是衡量路基质量的重要指标。

The soakage effect of rainfall on the roadbed was studied by the movement mechanism of interior water in roadbed.

对于采用路面和路基排水系统建成的路基，一般认为降雨对路基的影响很小。

Finally, the problem of the stress release of the expansive soil roadbed slope in the excavation process and the failure criterion in the sliding simulation are discussed. The synthetic criterion for the unstable slope is proposed. The dynamic simulated analyses on the stability of the expansive soil roadbed slope in the process of digging, fore-and-after of soaking and different soaking depth have been carried out.

最后，讨论了膨胀土路堑边坡开挖过程中的应力释放问题和边坡模拟过程中的失稳判据问题，提出了边坡失稳的综合判别依据；对膨胀土路堑边坡进行了开挖过程中和浸水前后以及不同浸水深度时的稳定性的动态模拟分析。

As a new type of soft soil foundation treatment, the roadbed reinforced by prestressed tubular pile s can solve problems of roadbed stability and total settlement.

管桩加固软土路基作为一种新的处理方式可以有效地解决路基稳定和总沉降的问题，但是桩顶平面会产生较大的桩土相对位移。

In this thesis, the engineering property of the frozen earth in the frozen railway roadbed in Anduo section (between DK1561+975-DK1562+530) of Naquhe region of Qinghai-Tibet railway was studied indoor. The change of engineering property of the earth samples with different water content , density and temperature were researched. The influence of concentration of the diffluent salt to the frozen strength was pilot studied. The thermal conductivity of the soil was experimented. With the result and data of the tests, the earth temperature field in Anduo section was demonstrated by numerical analysis, the structure parameter of the spall revetmentd and the rubble berm was given, the stability of the railway roadbed was evaluated.

本文以青藏铁路格尔木-拉萨段那曲河地区安多段(DK1561+975～DK1562+530)冻土路基为对象，对该地区冻土的工程性质进行了室内试验研究；对不同含水率、不同压实度的土样，研究在特定温度变化范围内工程性质的变化：初步分析了易溶盐含量对冻结强度的影响：测试了土样的导热系数；在室内土工试验的基础上，根据测试结果和数据，对安多段区域地温场进行了数值模拟，分析了该工点区间内合理片石护道、碎石护坡结构参数，评价了路基稳定性。

According to by the time series estimate power spectral density\'s periodogram law principle,the research adopts five level of orbital power spectra which US Federal railway Administrative bureau FRA proposed;then,through the Fourier inverse transformation,the orbital not smooth time domain samples are obtained, which determine the track irregularity peak-to-peak value and the corresponding wave length; on the basis of the research,the influence of the wheel track dynamic contact force are considered.Based on the orbital roadbed coefficient\'s definition,computation model is established to solve the roadbed equispaced spring constant,and the roadbed uniform spring stiffness is obtained by using the numerical simulation method.Finally,based on the Matlab procedure platform,the computational procedure is established,and the load time interval caused by the moving train acts on the roadbed is obtained.

根据由时间序列估计功率谱密度的周期图法原理，采用美国联邦铁路管理局FRA提出的五级轨道功率谱，通过Fourier逆变换得到轨道不平顺的时域样本，确定了轨道不平顺的幅值及对应的波长，以此为基础考虑轮轨动态接触力的影响；基于轨道路基系数的定义建立了求解路基均布弹簧刚度的计算模型，采用数值模拟得到了路基均布弹簧刚度；最后，基于Matlab程序平台编制了计算程序，得到了运行列车作用到路基上的荷载时程。

When bagged sand drain is applied together with geotextile for treatment of soft - foundationed roadbed, the filling period of roadbed can be shortened.

利用土工织物能调整并扩散上部填土传下的应力，可承受瞬间增加的较大荷载的特点，并与袋装砂井结合使用处理软土路基，可加快路基填筑时间。

In the expansive soil area, whether the roadcut or the roadbank, the distortion of side slope and roadbed is very serious and usual, which seldom happens in other terrene roadbed.

在膨胀土地区，无论是路堑还是路堤，及其普遍而严重的边坡变形与路床变形，都是其他土质路基中所罕见的。

The original roadbed is soft land base adopt plastic draining off board treatment, most section foundation soil already accomplishes a concretion , namely settlement already is in stable state, the roadbed broadens the settlement there existing difference in the old and new in the roadbed.

原有路基软土地基采用塑料排水板处理，大部分路段地基土已完成固结，即沉降已处于稳定状态，路基拓宽后的新老路基存在差异沉降。

In addition, the author has deduced groundwater seepageequation of roadbed of setting different egis slope, and analysed the height of soakage line inside of roadbed of setting different egis slope. It is concluded that no matter what roadbed is in steady seepage or unsteady seepage, it is more avail to drain of roadbed using better penetration materials (such as no-fines concrete etc) than using weak penetration material s.

另外，推导了设置护坡的路基的地下水渗流方程，分析了设置不同护坡时路基中的浸润线高度及其变化，认为无论路基处于稳定渗流还是非稳定渗流，用强透水材料作护坡比弱透水材料作护坡对路基地下水的排出更为有利。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。