管道工程管

Based on analyzing and comparison of the several kings of theoretical formula and analyzing the composition and influence factor, this paper improves a common formula used in calculating jacking force in pipe jacking.

本文针对当前非开挖技术基础理论研究滞后于工程实践的现实，对顶管的推力理论、水平定向钻进的管道回拖力及其水平钻进过程中的孔壁失稳机理等问题进行了研究。

As a new loading/unloading machine, SCZ25-2 model telescopic loader is equipped with fork and side-shifting device, it is suitable for hoisting and piling of goods packed in boxes, and also for such aloft work as installation and maintenance of street lighting fitting and laying-out of underground pipelines (pipeline of tap water, gas and so on) in the construction of municipal works, and it may be used widely in such sites as factories, stations, logistics terminals, goods yards, post office, forest farm, enterprises of building materials, and warehouses, and therefore it is a loading/unloading machine with wide adaptability and high efficiency.

SCZ25-2伸缩臂装载机是一种新型装卸机械，它备有货叉和侧移工作装置，适合于从事成箱货物的起重和堆垛，也可在市政工程施工中从事道路照明设备的安装检修等高空作业和各种底下管道（例如自来水管、煤气管等）的安装铺设等作业，并能广泛地适用于工厂、车站、码头、货场、邮电、林场、建材、仓库、物流等行业，是一种适应性广和效率高的装卸机械。

The recommendatory formulas of the critical hoist flow velocity and pipeline resistance were presented for the engineering by comparing the previous studies.

通过比较已有的研究成果，本文总结了适于工程实际中使用的粗颗粒垂直管水力提升临界提升流速和管道输送阻力的计算公式。

The way of large deflection beam and collocation method is mainly used to analyze the static and dynamic problems of the pipeline, abandon and recovery and other working condition in the swallow and deep sea. Based on this, the computer programs are made out with object-oriented method. This computer program has characteristics of friend interface, high calculating speed, broad common use and acceptable accuracy.

本文主要用大挠度梁、样条函数配点法对深水、浅水中的管道进行了静力、动力和收弃管等其它作业状态分析计算，在此基础上用面向对象的程序设计方法编制了计算软件，本软件界面友好、计算速度快、适用范围广并且满足工程精度要求。

For supporting the building of the Pudong Expo area gas four tenders 26 road sections of 20,028 meters of gas pipelines and Puxi Expo area 8671 meters of road works Expo Gas calandria calandria local gas pipeline work in more than a year of intense work after the Recently all be completed.

对于浦东世博园区燃气配套建设4个标段26个路段20028米的道路燃气管道和浦西世博园区8671米道路燃气排管工程的世博园区内燃气管道排管工作在经过一年多的紧张工作后于近日全部竣工。

Establish large deformation model of pipes under geologic disasters such as collapse and gulch; simulate and validate these formulas, and make certain of pipe' lapse length, and put forward some defendable suggestions.

基于弹性地基理论和弹性梁挠曲理论建立了埋管在坍塌/冲沟地质灾害作用下的变形微分方程，导出了大变形分析模型；以西气东输工程用管为例，由计算机仿真验证了公式适用性，确定了管道失效长度并提出了预防建议。

In addition,curves of ground settlement are dissymmetric for latter pipe jacking and can still be calculated with Peck formula.

水平平行顶管在工程应用中使用较多，由于管道之间的相互影响，水平平行顶管产生的沉降要大于单顶管，特别是

Based on forerunner's calculation of resistance pressure drop of two-phase flow, the paper utilized the method of combining horizontal straight tube resistance equation and crankled tube resistance equation to get the velocity of the two-phase flow and solid concentration,According to this thought, experiments were held to validate the idea if it can wok .

本文在应用前人关于管道气固两相流动阻力计算实践的基础上，利用直管段和弯管段的阻力压降计算式联立求解，得到管道内气固两相流的流速和固相浓度的计算式，在此基础上，进行了试验，通过在气固两相流试验台上试验及数值模拟计算，表明该法在线检测气固两相流固相浓度和流动速度是可行的，具有方法简单、非侵入、响应速度快等优点，具有很好的工程应用价值。

Group has been GB/T19001-2000 international quality assurance system certification, A-level qualification boiler parts manufacturers, the pressure pipeline safety devices to register high-voltage power station tube manufacturing quality; has made the United States ASMEU, S symbol of product manufacturing quality; civilian nuclear pressure Qualification equipment manufacturers; pressure vessel manufacturing license; Hebei measures, such as qualified to confirm qualification certificates, the company has import and export right, it is the second phase project of Qinshan Nuclear Power 600 MW unit of qualified suppliers, the fifth installation of the China Nuclear Industry Corporation Qualified suppliers, is China's high-voltage power companies sentinel tube manufacturers.

集团公司已获得GB/T19001-2000国际质量保证体系认证，A级锅炉部件制造资质，压力管道元件安全注册；电站高压管件制造资质；取得了美国 ASMEU，S钢印产品制造资质；民用核承压设备制造资质；压力容器制造许可证；河北省计量合格确认等资质证书，公司拥有自营进出口权；是秦山核电二期工程600MW机组合格供应商，中国核工业第五安装公司合格供应商，是中国电力公司高压管件定点生产厂家。

Installation technology and application of the long-distance grp sand pipe;2. drainage pipe and field test of GRP sand pipe construction technology, we draw the conclusion that GRP pipe is applicable for drainage pipe of port engineering.

通过对玻璃钢夹砂管与钢筋混凝土排水管的综合性能比较及对玻璃钢夹砂管施工工艺的现场测试，得出&玻璃钢夹砂管完全适用于港口工程的排水管道&的结论。

The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.

此刻阴唇已经几乎完全的缝在一起了，排除多余淤血体液的管子和Foley导管从顶端冒出来。

To get the business done, I suggest we split the difference in price.

为了做成这笔生意，我建议我们在价格上大家各让一半。