探讨了沉管干振碎石桩对土层的加固效应。
The compaction effect on the soil by dry vibrated gravel columns is discussed.
同时，介绍了常洪沉管隧道最终接头的施工方法。
At the same time, the construction method is presented of the final joint in Changhong immersed tube tunnel.
由于工程建设条件的不同，沉管隧道建设的方法也各具特点。
Depending on different conditions in different projects, construction methods for immersed tunnel vary with their respective features.
介绍了在沉管隧道施工中，实时监测沉管沉放的一种测量方法。
A surveying method of real time monitoring for immersed tube was introduced.
沉管隧道工程中的管段为大体积混凝土构件，结构形式较为复杂。
The pipe section of the immersed tunnel is the large-volume concrete structure, which is complicated in the structure shape.
因此，沉管隧道水下基槽边坡合理坡率问题的研究具有很重要的意义。
Therefore, a study on Immersed tube tunnel underwater slope of reasonable foundation trench slope of the rate has very great significance.
铁路沉管隧道的设计与计算方法，与山岭隧道、盾构隧道相比有很大差异。
Compared with mountain tunnel and shield tunnel, the design and calculation method of immersed railway tunnel differs greatly.
在各个环节，提出相应的技术要求和措施，保证了沉管敷设工的顺利进行。
At every important link, there presented technical requirements and relevant measures, so as to make the laying work to be carried out successfully.
结合嘉兴电厂海底隧道工程，介绍了沉管隧道对接的测量理论和实施措施。
Combining with the undersea tunnel engineering in Jiaxing power plant, the measurement theory and method for submerged tubes to be joined together undersea are present.
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.
本实用新型涉及隧道类，特别涉及一种应用在沉管隧道工程中的桩基础结构。
The utility model relates to tunnel class, particularly a piling base structure applied to the construction of immersed tube tunnels.
本文重点在理论上和方法上对沉管隧道施工所需的各项测量工作进行了研究。
This thesis focuses on the theory and the method, and studies all measurements required in the project of immersed tube tunnel.
近年来，振动沉管碎石挤密桩在处理饱和黄土地基方面得到了相当广泛的应用。
In recent years, the close-packed macadam piles are widely used in dealing with saturated loess base.
提出夯扩头最大直径计算方法，并对沉管桩和夯扩桩的经济效益进行分析比较。
The calculation methods of maximum diameter of ram extension hair is put forward.
哈沙什解释说，沉管式的设计要求大部分的隧道建筑在干坞上，干坞漂浮并沉没在水里。
Hashash explains that the immersed-tube design requires largeportions of the tunnel to be built on a dry dock that is floated outinto the water and sunk.
为了研究在沉管碎石桩复合地基场地中沉入预制桩的可能性，进行了预制桩沉桩试验。
Precast pile driving test is performed to investigate its possibility in gravel pile composite foundation with settling tube.
分析了沉管隧道管段连接方式对隧道动力特性的影响，研究了管段弹性连接减震效果；
The influence of the joint form was analyzed, and the damping effects of the elastic joint were studied.
长距离深海跨海沉管隧道，为满足隧道内运营通风的要求必须在隧道中部设置通风竖井。
Because of ventilating requirement of cross-ocean tunnel, especially long distance cross-ocean tunnel, ventilating shaft should be set in the sea.
期望通过此项研究，对今后类似的大型沉管隧道管段接头的试验、设计、施工有所帮助。
It is expected that the experiments may be helpful for tests, design and construction of the said connections.
在含有大量生活垃圾形成的复杂软弱层中，按常规方法施工沉管桩，将造成严重的缩径现象。
In the complex soft layer contained large quantity of living rubbish, construction on sinking tubular pile with conventional method, will lead on to reduce tube diameter.
阐述了沉管隧道的总体设计方案，以及干坞工程、管段桩基础、管段接头、最终接头等关键技术方案设计；
Zhejiang Province and describes the overall design and the key technical design such as dry dock, pile foundation, element joints and final joint, etc.
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.
最后，对超大型盾构机长距离掘进与深水急流海底沉管隧道的设计、施工等列出其中的若干技术关键问题。
Some key issues related with excavation by a super-large shield machine and the design and construction of immersed tunnel in deep seawater and torrent conditions are also listed.
沉管隧道工法为水下隧道建设的主要工法之一，其关键工序包括管节预制、浮运、沉放对接和基础处理等。
The technical development in tube element prefabrication, tube element waterproofing, docks and foundation treatment are discussed in this paper.
通过试验证明振动沉管碎石桩在排水性能、减少地基不均匀沉降、提高地基承载力等方面具有卓越的成效。
By test shows that vibro replacement stone columns in the drainage performance, reducing differential settlement of foundation, improving the bearing capacity and so has excellent results.
根据沉管挤密碎石桩和CFG桩组合型地基的承载机理和特性，分析了该组合型复合地基承载力的计算方法。
According to the bearing mechanics and characteristics of pipe sinking gravel compaction pile and CFG pile the bearing capacity calculation method of this combined composite foundation is analyzed.
虽然沉管隧道作为地下结构，其抗震性能远远好于上部结构，但是大量的震害实例表明，其也是有可能破坏的。
As a buried structure, the aseismatic ability of immersed tunnels is much better than overground structure, but a large number of examples show it can also be destroyed.
结合宁波市常洪隧道岩土工程勘察实例分析，对软土地基沉管隧道工程的岩土工程勘察方案设计进行了初步探讨。
Based upon the exploration and analysis of Changhong immersed tube tunnel, Ningbo, the paper makes a preliminary study on the geotechnical exploration scheme of immersed tube tunnel in soft ground.
结合宁波市常洪隧道岩土工程勘察实例分析，对软土地基沉管隧道工程的岩土工程勘察方案设计进行了初步探讨。
Based upon the exploration and analysis of Changhong immersed tube tunnel, Ningbo, the paper makes a preliminary study on the geotechnical exploration scheme of immersed tube tunnel in soft ground.
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