它是用管土刷白的。
提出了管道失稳时假定接头处为铰链的管土相互作用宏观模型。
The macroscopic model of pipe-soil interaction at failure of pipeline is put forward by assuming that the joints act as hinges.
对顶进过程中管道纵向与环向钢筋应力及管土接触压力进行了现场测试。
Vertical and annular reinforcing steel bar stress and pipe-soil contact pressure during pipe jacking were monitored on the spot.
管土接触压力随管道的顶进一开始缓慢上升，到一定距离后基本保持在一定范围内。
Pipe-soil contact pressure increased slowly along with pipe jacking, and it also maintained stated basically after some distance. Contact pressure of tip pipe was greatly affected by grouting.
分析了传统曲线顶管施工中管土之间的相互作用，建立了首节管道和后续管节的受力模型及土体反力分布模式。
The pipe-soil interaction in the traditional curved pipe jacking is analyzed. The soil counterforce distribution model and load bearing model for the heading and the latter pipelines are set up.
总结前人研究成果的基础上，基于模型试验和有限元分析方法，进行了掩埋管线的管土相互作用研究：1。掩埋于砂土中管线的室内模型试验研究。
Based on former research, author investigates the interactions between pipelines and soils around by laboratory test and FEM. 1. Laboratory model test for pipelines buried in sandy soils.
就对管园的说，看哪，我这三年，来到这无花果树前梢果子，竟找不着，把他砍了吧。 何必白占地土呢。
Then said he unto the dresser of his vineyard, Behold, these three years I come seeking fruit on this fig tree, and find none: cut it down; why cumbereth it the ground?
采用考虑位移的土压力计算方法计算环向土压力，得出首节管道和后续管节最大土体反力的计算公式。
By considering displacement for calculating circular earth pressure, the maximal earth counterforce formulas for the heading and the latter pipelines are deduced.
根据桩土体系之间的关系，取消承台，对罐基础采用高强预应力管桩的桩土复合地基设计。
Based on the relation of pile with earth, cancel the slab to design container foundation adopting high intensity prestressed pipe pile.
土压平衡式顶管掘进机机头泥土仓土压力控制是顶管工程中最关键的技术之一。
Soil pressure control is one of the most important technology of pipe pushing engineering with earth balance shield machine.
总结了锚管桩复合土钉支护的构造、工艺、施工组织、基坑安全及质量保证措施。
The conformation, craft, construction organization of CCSN, the measure of foundation pit safety and quantity guarantee are summarized.
开槽埋设钢管等柔性管时，开槽宽度对于作用于管道上的竖向土压力有着很大的影响，这已被现场实测和模拟试验结果所验证。
It has been proved, through field-measured data and model test results, that trench width has much effect on vertical earth pressure on trenched flexible pipes such as steel pipelines.
“思想管”由克瑞斯·拉塔设计，是个小舱，能够在公共场所为人们提供一块“静”土。
Designed by Chris Latta, the "Think Tube" is a small pod that allows privacy in public places.
本文通过动力有限单元法对管周围土压力的动力作用分布和管子的自振特性进行了某些探讨。
Using the dynamic Finite Element Method, the dynamic soil pressure distribution along the pipe periphery and the free vibration characteristics of the pipe are studied in this paper.
研究了黏弹性土中管桩沉桩后的固结问题。
The problem of the soil consolidation after tube-pile driving was studied.
用土柱管栽试验方法研究了不同灌溉施肥深度对夏玉米生长发育、地上地下部分同化物分配、产量和水分利用效率的影响。
In this paper, experimental results of the influence of various fertigation depth on growth, dry matter partition, yield and water use efficiency of cron are presented.
在管桩施工中使用预应力混凝土容易出现挤土效应，影响工程质量。
Using the prestressed concrete in the pile construction is prone to cause compaction effect which will affect the project quality.
理论分析和现场实测都显示，在类似于上海等地的软土地层中顶管施工，顶管周围土的运动问题是三维的。
Both theoretical analyses and field observations have shown that pipe jacking in such a kind of soft soil ground as in Shanghai area, movements of soils around the pipes is of three-dimension.
埋设在高等级公路中的钢筋混凝土圆管涵属于上埋式管涵，作用于其上的竖向土压力影响因素繁多，分析极其复杂。
There are many factors to influence the vertical earth pressure on the reinforced concrete culvert, so it is very difficult for the analysis.
空气幕、套管内干取土沉管灌注桩这种新的施工工艺是通过套管内取土，套管外设空气幕来减少沉管阻力。
A new pile-driven technology named air curtain dry soil withdrawal can reduce resistance of a sinking pipe by withdrawing soil from the pipe and installing air curtain on the outside of pipe.
带坡的管沟上边缘（如图所示）可减少某些土壤产生碎土的数量。
The sloping ditch edges as shown in the figure tend to reduce the amount of crumbling that occurs in certain soils.
由于埋地管道与土体之间存在管、土相互作用，地震、地面不均匀沉降等地层变形均会导致管道受力、变形而被破坏。
The ground deformation caused by earthquake, soil differential settlement often induces damage of the buried pipe due to pipe-soil interaction.
其缺点是沉管过程中大量挤土，沉管阻力较大，对周围环境造成不利影响。
Its disadvantage is that it presses a large range of soil while sinking the pipe, inducing high resistatance and bring negative effects to surrounding environment.
利用半解析单元法将顶管施工中三维土运动问题转化成一维数值计算。
By making use of the semi analytical element method, the three dimensional soil movements problem of pipe jacking is transfered to a one dimensional numerical calculation.
本文在分析和总结锚管式土钉墙的支护特点后对其在设计和施工方面提出了几点建议，供设计和施工人员参考。
Based on the analysis and conclusion on support characteristics of tubular anchor soil nailing wall, some Suggestions for the design and construction for reference were put forward.
通过实测结果和理论计算结果的对比分析，总结了适合郑州市郑东新区以粉质粘土、粉土为主，地下水位较浅的典型地质背景下的管桩复合地基沉降变形的一般规律。
Some general features of pipe pile composite foundation settlement derived from the typical geology background of silty clay, silty soil and shallow water level in Zhengzhou are summarized.
研究了锚管桩复合土钉支护机理，建立了锚管桩复合土钉支护稳定性分析模型，并对工程实例进行计算分析，检验了分析模型。
Studied the work mechanism of CCSN, the model of stability analysis of CCSN is established and examined by analysis engineering case.
对于非均质各向异性软土地基上管桩基础的承载力，基于塑性极限分析理论考虑软土强度的非均质与各向异性效应，提出了一种改进的三维极限分析上限解法。
A modified three-dimensional plastic limit analysis method is proposed for lateral bearing capacity of the large-diameter pipe pile in the inhomogeneous and anisotropic soft ground.
扩头蔡白蚁生殖蚁的侧输卵管直径与长度的比例和输精管直径与长度的比例明显大于黑翅土白蚁（P<0.01）。
The ratio of the diameter and length of the lateral oviduct and seminal duct of reproductive individuals in T. ampliceps was larger than in O. formosanus (P<0.01).
扩头蔡白蚁生殖蚁的侧输卵管直径与长度的比例和输精管直径与长度的比例明显大于黑翅土白蚁（P<0.01）。
The ratio of the diameter and length of the lateral oviduct and seminal duct of reproductive individuals in T. ampliceps was larger than in O. formosanus (P<0.01).
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