| 1. | The increase of vacuum energy can not accelerate the surface settlement when the flow is small
在出水量已较少的情况下，增加真空能量并不能加快地表的沉降速率。 |
| 2. | Meanwhile , a mathematics model is set up between the level displacement and the ground surface settlement , which can reduce the workload of pits survey
同时,建立了水平位移与周边沉降之间的一个数学模型,通过模型能够减少基坑监测工作量。 |
| 3. | That means that we take maximum settlement value as an objective value , that is , to control surface settlement is to control pipeline deformation
研究思路是：首先要搞清楚地表沉降的规律以及地表最大沉降值的计算方法：然后研究地表最大沉降值w 。 |
| 4. | Using this curve , the surface settlement can be calculated through the lateral wall deflection , which can be gotten by elastic reactance method
按照地层损失法思路，本文推导了由围护墙侧向变形值（可由杆系有限元法解得）求解基坑墙后地表沉降的实用公式。 |
| 5. | Abstract it ' s a valuable problem in foundation pit of soft soil to study its lateral wall deflection and the surface settlement behind the retain wall
软土基坑变形是一个很有价值的研究课题。本文简单介绍了这方面的研究现状和工程中急需科研指导的主要问题。 |
| 6. | Besides them , the results also indicate that the surface settlements of soil behind retaining structures are related to the deformations of retaining structures
同时，围护结构变形扫掠过的体积和墙后土体下沉量具有某种相关性，扫掠过的体积越大，墙后土体下沉的体积也越大。 |
| 7. | The results shown that the total surface settlements and the deformation of the downlink tunnel are closely relate with the relative position of the tunnels
研究表明，叠交隧道共同影响下的地面沉降及后推进隧道盾构施工引起先建隧道衬砌的位移和变形与隧道间的相对位置密切相关。 |
| 8. | After analyzing a serial of samples by fem , studying their calculated and practical data , this article gives a typical distribution curve of the surface settlement behind the retain wall
本文应用有限元法分析了一系列软土基坑工程典型实例，根据计算结果和实测值提出了软土基坑墙后地表沉降的概化分布曲线。 |
| 9. | Too much ground surface settlements and soil movement caused by shield tunneling can lead to pipelines and buildings around tunnel being damaged , economy expense and society blight
但是,由于盾构施工容易引起地面沉降和变形,当地表沉降过大时可能危及周围建筑物和地下管线等建(构)筑物的安全,造成严重的经济损失和社会影响。 |
| 10. | ( 6 ) the ratio of the maximum value of the ground surface settlement and the horizontal displacement of the retaining structure has been found to be constant in the condition of an universal clay soil , steel bracing , seepage force etc
总结出土质为一般粘性土，钢支撑支护体系，考虑渗流作用的条件下最大沉降量与最大水平位移的比值。 |
