导管

Little tremie grouting,systemic rock bolt and horizontal prestressed rock bolt are the most effective reinforcing technique s which have been validated in practice.

而小导管注浆、系统锚杆及水平贯通预应力锚杆是应用最为广泛的3种中夹岩加固技术，并在实践工程中得到有效验证。

Take care that the tremie does not touch the rebar cage or is clogged.

浇筑首盘混凝土时，导管底部至孔底距离控制在35～40cm。

The assembling of the tremie should ensure the tight connecting of thread.

导管安装时丝扣要拧紧，底部离孔底20-40厘米。

The tremie should be kept at the center during the installation, vertically lowered down step by step.

下放过程中应保持导管位置居中，轴线顺直，逐步沉放，防止卡挂钢筋笼和碰撞孔壁。

All segments of the tremie should be of the same inner diameter, with the allowable deviation not greater than ±2mm.

各节导管内径大小一致，偏差不大于±2mm。

The assembling of tremie should be firm, possessing smooth inner wall and straight shape without local concave-convex.

导管制作要坚固，内壁光滑，顺直，无局部凹凸。

In the whole procedure of concrete casting it is essential that the tremie is for at least 1.5m, up to 5m, beneath the concrete surface to prevent the slurry runs into the tremie.

在整个砼浇筑时间内，导管口应埋入先前浇筑的混凝土内至少1.5m，防止泥浆冲入管内，但不得大于5m。

To avoid the rebar cage uplifts, the speed of concrete casting should be lowered down when the concrete is cast to about 1m under the rebar cage's bottom; when the casting progresses to 4m above the bottom of the rebar cage the tremie should be lifted up to ensure it's bottom is 2m above the rebar cage's one, and then the normal casting speed can be resumed.

为防止钢筋骨架上浮，当灌注砼顶面距钢筋骨架底面1m左右时，应降低砼灌注速度，当砼上升至钢筋骨架底面4m以上时，提升导管，使其底口高于骨架底部2m以上，即可恢复正常砼灌注速度。

Methods We retrospectivly selected two types of catheters:one trivalve PICC and one non- trivalve PICC.

方法选用三向瓣膜式PICC及非三向瓣膜式PICC，两种导管的型号均为4Fr。

The infected tissues were changed at the cellular level in morphological structure and physiological and biochemical metabolism, such as cell wall collapse, tylose plugging in air cavities, reduction of glairin and amylum, cell lignification, and brown gum in vessels. The crude toxin produced by F.

受侵染的植物组织在细胞水平上发生一系列形态结构和生理生化代谢的病理变化，包括细胞壁消解、侵填体堵塞气腔、粘胶质减少、淀粉量减少、细胞木质化和黄褐色胶状物堵塞导管等。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。