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A platform for research: civil engineering, architecture and urbanism
Construction method for reinforcement of open cut tunnel portal
The invention belongs to the technical field of tunnel portal reinforcement, and discloses a construction method for reinforcement of an open cut tunnel portal. The method comprises the steps of anchor cables; frame beam construction; anti-slide pile construction; biased retaining wall construction; lining formwork, wherein trolley positioning, lining steel bar, concrete construction, disassemblyand maintenance are carried out; tunnel structure waterproofing drainage, wherein tunnel waterproofing drainage, water-stop band construction, water-stop strip construction, construction joint construction and deformation joint construction are carried out; and ditch and cable groove construction, wherein a ditch groove adopts ejecting set-shaped steel formworks, concrete is manually poured, tamping compaction is carried out by a plug-in vibrator, and a water ditch, a cable groove and a side ditch are constructed by using a whole mobile formwork. The construction method for reinforcement of the open cut tunnel portal is small in portal excavation amount, good in reinforcing effect and low in cost, and can ensure the safety stability of tunnel portal construction; and the problem of tunnelportal entrance is effectively solved, economy, rationality, safety and efficiency are achieved as best possible, and the scientific basis is provided for the design of the method for reinforcement ofthe open cut tunnel portal.
本发明属于隧道洞口加固技术领域，公开了一种隧道洞口明洞加固施工方法，包括：锚索、框架梁施工；抗滑桩施工；偏压挡墙施工；衬砌模板：台车定位，衬砌钢筋，混凝土施工，拆模及养护；隧道结构防排水：隧道防排水，止水带施工，止水条施工，施工缝、变形缝施工；水沟及电缆槽施工：沟槽采用架立定型钢模板立模，人工灌注混凝土，插入式振捣器捣固密实，水沟、电缆槽及侧沟使用整幅移动模架施工。本发明提供的隧道洞口明洞加固施工方法洞口开挖量小，加固效果好，成本低，能够保证隧道洞口施工的安全稳定性；有效的解决了隧道洞口进洞的难题，最大可能地实现了经济、合理、安全、高效，为隧道洞口明洞加固方法的设计提供了科学依据。
Construction method for reinforcement of open cut tunnel portal
The invention belongs to the technical field of tunnel portal reinforcement, and discloses a construction method for reinforcement of an open cut tunnel portal. The method comprises the steps of anchor cables; frame beam construction; anti-slide pile construction; biased retaining wall construction; lining formwork, wherein trolley positioning, lining steel bar, concrete construction, disassemblyand maintenance are carried out; tunnel structure waterproofing drainage, wherein tunnel waterproofing drainage, water-stop band construction, water-stop strip construction, construction joint construction and deformation joint construction are carried out; and ditch and cable groove construction, wherein a ditch groove adopts ejecting set-shaped steel formworks, concrete is manually poured, tamping compaction is carried out by a plug-in vibrator, and a water ditch, a cable groove and a side ditch are constructed by using a whole mobile formwork. The construction method for reinforcement of the open cut tunnel portal is small in portal excavation amount, good in reinforcing effect and low in cost, and can ensure the safety stability of tunnel portal construction; and the problem of tunnelportal entrance is effectively solved, economy, rationality, safety and efficiency are achieved as best possible, and the scientific basis is provided for the design of the method for reinforcement ofthe open cut tunnel portal.
本发明属于隧道洞口加固技术领域，公开了一种隧道洞口明洞加固施工方法，包括：锚索、框架梁施工；抗滑桩施工；偏压挡墙施工；衬砌模板：台车定位，衬砌钢筋，混凝土施工，拆模及养护；隧道结构防排水：隧道防排水，止水带施工，止水条施工，施工缝、变形缝施工；水沟及电缆槽施工：沟槽采用架立定型钢模板立模，人工灌注混凝土，插入式振捣器捣固密实，水沟、电缆槽及侧沟使用整幅移动模架施工。本发明提供的隧道洞口明洞加固施工方法洞口开挖量小，加固效果好，成本低，能够保证隧道洞口施工的安全稳定性；有效的解决了隧道洞口进洞的难题，最大可能地实现了经济、合理、安全、高效，为隧道洞口明洞加固方法的设计提供了科学依据。
Construction method for reinforcement of open cut tunnel portal
一种隧道洞口明洞加固施工方法
WU QINGHUA (author) / LIANG YINGFENG (author) / ZHU QINGLI (author) / ZOU YANG (author) / ZHU PENGGANG (author) / MI SHIPENG (author) / LYU ZENGYIN (author) / WANG WEIJUN (author) / XIONG JUNXIANG (author)
2020-08-25
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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