| 1. | Considering some factors of differential settlement and settlement after construction and roadbed stability , djm column that treats the soft ground is chosen
通过考虑差异沉降、工后沉降和路基稳定等因素，选用粉喷桩的处理方法处理软基。 |
| 2. | Through the laplace transform method , the author has a systemic study on the tolerable differential settlement of the bridge approach with and without approach slabs
本文通过拉普拉斯变换对设和不设搭板路桥过渡段的容许差异沉降进行了系统研究。 |
| 3. | The control of the discrepancy settlement between the old road and the widening section is the crucial issue of the expressway widening engineering on soft soil ground
在软土地基上进行高速公路的拼接拓宽工程，差异沉降的控制是拼接拓宽工程的核心问题。 |
| 4. | The selection of reasonable foundation treatments to reduce the discrepancy settlement between the old and new roadbed is another crucial problem to ensure the engineering quality
选择合理的地基处理方法减小新老路基间的差异沉降，是保证工程质量的又一个关键因素。 |
| 5. | As a result of the analysis above , the procedure and method to determine the tolerable differential settlement and remaining settlement of the bridge approach are given
以车辆通过路桥过渡段时动力响应分析结果为基础，提出了路桥过渡段容许差异沉降及工后沉降的确定方法。 |
| 6. | The practice indicated that this method can reduce discrepancy settlement effectively , and enhance the bear weight of the ground . it is the effective foundation treatment of the deep soft soil ground
实践表明，其能有效的减小新老路基间的差异沉降，提高地基的承载力，处理效果明显，质量可靠。 |
| 7. | Determining the tolerable differential settlement of bridge approach is a key problem for preventing the bump at the end of the bridge , but so far on which there are little theoretical research around the world
路桥过渡段容许差异沉降的确定是预防桥头跳车的一个关键问题，但这方面国内外理论研究成果均很少。 |
| 8. | The practice indicates that if the change of the slope in length and breadth of road surface is under 0 . 5 % , the problems above can be avoided , and this can be taken as the control criterion of discrepancy settlement of road widening engineering
实践表明，当路堤纵横坡的改变量小于0 . 5时，能有效的避免上述问题的产生，并以此作为拼接拓宽工程的差异沉降控制标准。 |
| 9. | The discrepancy settlement control criterion relates to several aspects such as the placidity and comfort of driving at high speed , smooth drainage , and the crack which may occur during or after widening process
差异沉降的控制标准涉及众多因素，包括拓宽过程中及拓宽以后高速行车的平稳性、舒适性、排水的畅通以及新老路基间裂缝的开展等多种因素，其中高速行车的平稳性为主要因素。 |
| 10. | The practice indicated that the eps roadbed have advantages of light weight and convenient construction , erection structure will reduce more ground press and land area . this method can reduce the settlement availably and it is an ideal lightweight filling of the widening roadbed
实践表明， eps硬泡沫塑料具有质轻、施工方便等优点，采用直立式结构能进一步减小地基压力，同时节约占地，能有效的减小新老路基间的差异沉降。 |
