1) Temporary Invert
T.I.临时仰拱
2) temporary inverted arch
临时仰拱
1.
4 tunnel in the 51st bidding section of Xihan Superhighway, and in the light of the features of the tunnel under the weak geological condition, this paper puts forward corresponding pre-controlled construction scheme, which includes the excavating and supporting, monitoring and measuring, and the construction of big arch springing and temporary inverted arch, etc.
通过对西汉高速公路51标段酉水3号、4号隧道的施工,针对软弱地质隧道水平收敛大、拱顶下沉快的特点,提出了相应的预控施工方案,包括开挖和支护、监控量测、大拱脚和临时仰拱的施工等。
2.
Research conclusions:The three-step temporary inverted arch method can be adopted to the single-track railway tunnel,with strict control of the step lengths of the step,inverted arch and secondary lining after installation of sectional concrete inverted arch on the top step for getting the perfect control effect.
研究结论:单线铁路隧道采用3台阶临时仰拱法,上台阶设置型钢混凝土仰拱后,应严格地控制台阶、仰拱、二衬的步长,在控制变形方面效果较为明显;大变形隧道应根据监控量测资料预留适度的变形量,对于防止前期初期支护破坏和后期护拱开裂,以及控制工程成本都有着非常重要的意义;隧道通过初期支护壁后注浆,在钢架型号、接头形式位置和纵向连接设置等方面进行改进,并在一定程度上抑制了变形发生;施工中应对长台阶施工或中间拉槽的错误作法严格禁止。
3.
According to the geographic situation of the construction,the paper integrates the consideration on the safety,the quality,the process and the costs,adopts the three-step core-soil method to excavate and support by combining the temporary inverted arch and the fan support,and also gives an introduction on the construction points.
根据工程的地质情况,综合安全、质量、进度、成本各方面因素考虑,采用了三台阶预留核心土法联合临时仰拱、扇形支撑进行开挖支护,对其施工技术要点作了叙述,通过施工效果评价,表明该施工方法是科学合理、安全有效的。
3) inverted arch
仰拱
1.
Effect of excavation length of inverted arch in one step on stability of multi-arch tunnels in loess;
仰拱一次性开挖长度对黄土连拱隧道稳定性影响研究
2.
The Study of Inverted Arch Precasting Technology for Qingling Ultra-Long Railway Tunnel under the TBM Constrction Conditions;
秦岭特长铁路隧道TBM施工条件下仰拱预制技术的研究
3.
The application of grouting to consolidate foundation,combined with consolidating treatment of setting umbrella arch up and inverted arch down,has achieved good effect of engineering.
建宁芝峰公路石拱桥在使用多年后出现了桥台下沉和局部结构裂缝的病害,采用注浆固结地基,结合上套拱、下仰拱的加固治理方法,取得了良好的工程效果。
4) invert
[英][ɪn'vɜ:t] [美][ɪn'vɝt]
仰拱
1.
Design and application of interference-free working platform for tunnel invert construction;
隧道仰拱施工防干扰作业平台的设计及应用
2.
The characteristics of high performance alkali slag cement is discussed in this paper The compressive strength test of high performance alkali slag cement was carried out in laboratory The experimental results proved that high performance alkali slag cement can be used for tunnel invert Some suggestions are given, which can provide a reference to further stud
介绍了高性能碱矿渣水泥的性能 ,室内进行了不同龄期的高性能碱矿渣水泥抗压强度试验 ,通过试验证明 ,在隧道仰拱超前施作中 ,应用高性能碱矿渣水泥的可行性。
3.
With the large scale model tests and the method of finite elements,this paper studies the mechanical behaviour of tunnel invert.
本文通过大比例尺模型试验与有限元分析相结合的方法研究了隧道仰拱的力学行为。
5) tunnel invert
隧道仰拱
1.
The field test is made about the tunnel invert that combined with precast reinforced concrete slab and dry concrete.
结果表明,由本文设计的隧道仰拱组合结构,能够增强隧道的施工安全和加快施工进度。
2.
In order to increase the construction speed to utilize the non-rail system effectively, a new construction technology of fast construction of tunnel invert using precast-slab has been proposed.
结合金洞隧道采用无轨运输地段的施工,设想在隧道仰拱(铺底)施工时,铺筑坍落度很小的干硬性混凝土,然后将混凝土预制板逐块铺在该混凝土面上。
6) grouting in inverted arch
仰拱注浆
1.
Countermeasures including setting locking anchor pipes and grouting in inverted arch h.
为控制隧道结构变形过大这一问题,施工中根据经验采用锁脚锚管和仰拱注浆。
补充资料：关于临时建设和临时用地
临时建设是指必须限期拆除、结构简易、临时性的建筑物、构筑物、道路、管线或其他设施；临时用地是指由于建设工程施工、堆料或其他原因，需要临时使用并限期收回的土地。批准临时建设和临时用地的使用期限，一般均不超过两年。
临时建设和临时用地都对城市规划的实施产生重要的影响，因此，城市规划行政主管部门必须对城市规划区内的临时建设和临时用地进行严格的规划管理。任何单位和个人需要在城市规划区内临时使用土地或进行临时建设都应当征得城市规划行政主管部门的同意，不得影响城市规划的实施。
鉴于临时建设和临时用地的情况比较复杂，各地的管理体制和管理条件又不尽相同，因此，《城市规划法》第三十三条规定：“在城市规划区内进行临时建设，必须在批准的使用期限内拆除。临时建设和临时用地具体规划管理办法由省、自治区、直辖市人民政府制定。”
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条