管棚支护是浅埋暗挖法施工中的一种辅助工法。
Pipe roof support is an assisted method of shallow tunneling.
以某隧道塌方处理为例，介绍管棚法处理隧道塌方的应用技术。
This paper presents the application technique of large steel-pipe-shed for dealing with collapse of tunnel combining the treatment practice of a tunnel collapse.
该工法包括回填和固结灌浆、管棚加固、控制爆破和喷锚等工序。
This method consists of the following procedures: backfill, consolidation grouting, reinforcing by the pipe and strut method, controlled blasting and anchor bars.
管棚注浆法是地下结构工程浅埋暗挖时通常采用的一种超前支护技术。
The application of pre-casting technology through advanced installed pipe shed in portal section construction of highway tunnel in fault-rupture zone;
超前管棚支护是隧道施工中穿越软弱破碎围岩的一种有效的预支护方法。
The shed-pipe advanced support that passes through soft cracked rock mass in tunnel construction is an effective pre-supporting method.
数值计算结果与实测结果的一致性进一步说明了管棚优化设计的合理性。
The result of numerical simulation is in accordance with the actually measured data, and it is proven that optical design of pipe shield is reasonable.
对松散堆积土覆盖层中成洞条件差的隧洞工程，采用超前管棚进行施工，取得了成功。
It is success to apply the lead pipe shed in tunnel projects under the poor tunneling condition of soft deposition layer.
同时对浅埋、富水和地质顺层地段分别采用管棚注浆和锚固桩加固的方法进行了处理。
Meanwhile, the pipe-roof grouting and pile anchoring method have been adopted also to strengthen the bedding strata of the large span tunnel.
超前注浆管棚支护是一种避免在软土地层或含水地层中盾构隧道开挖面失稳的有效技术。
The advanced pipe grouting is an effective technique to avoid the instability of shield-tunneling faces in soft or water-bearing ground.
按此方法指导的水平管棚设计施工在北京地铁复八线和热力管道工程中取得了良好的效果。
Based on this method, the design and construction of barrel vault advanced support in line Fuxingmen to Bawangfen of subway and the heating pipe in Beijing got a perfect result.
这为复杂构造条件下煤矿井巷的掘进寻找出一种新的支护技术，拓展了管棚预支护技术的应用范围。
The results indicate a new timbering method under in mine integrated structural conditions and extend the utilization scope.
在软弱土层管棚支护工程中，利用现有设备试验了多种成孔方法，优选出最佳成孔法，加快了工程进度。
The paper discussed common problems of pipe roof support engineering in soft ground and presented the optimization technology by tests on borehole construction methods with existing equipments.
通过对管棚预支护技术在两类自然条件下的施工情况分析对比，阐述了煤矿井下管棚预支护技术的特点。
Based on analysis of pre-timbering with tubular prop technology under two natural conditions, described the properties of this technology.
说明超前管棚结构有足够的可靠性，对上覆盖较小或有较大断层、隧洞塌方体的处理等匀有较好的适用性。
It shows sufficient reliability of lead pipe shed structures, and also shows the applicability for handling the conditions with smaller cover or greater crack or tunnel-body collapse.
管棚复合钢支撑技术，是一个通过超前管棚、支撑钢拱、白铁皮隔离、工作面封堵的相互配合和共同作用，形成了具有强大支护抗力的复合支护体系。
Pipe lodgepole-steel tunnel support technique is a strong composite support system consisting of advance pipe lodgepole, support stell vault, tin plate packer and working surface plug-back.
利用金属材料弯曲变形时的塑变硬化特性来弯曲矩形管，较好地解决了雨阳棚骨架现场弯曲加工的问题。
The hardening characteristic of plastic deformation is also discussed, which is useful to bend the steel tubes of awning on worksite.
利用金属材料弯曲变形时的塑变硬化特性来弯曲矩形管，较好地解决了雨阳棚骨架现场弯曲加工的问题。
The hardening characteristic of plastic deformation is also discussed, which is useful to bend the steel tubes of awning on worksite.
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