A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Open cut tunnel inverted arch construction method
The invention provides a construction method for an inverted arch of an open-cut tunnel. The construction method comprises the steps that S1, rotary excavating pile construction is conducted at corresponding point positions; s2, waterproof treatment is conducted on the pile head of the rotary excavating pile; s3, a concrete cushion layer is poured to the position above the designed pile top elevation of the rotary excavating pile; s4, geotextile is laid on the base face of the concrete cushion layer; s5, after the concrete protection layer is laid, bottom plate reinforcing steel bars are bound; and S6, inverted arch concrete is symmetrically and continuously poured from the center of the inverted arch to the two sides. The tunnel foundation is preliminarily formed through filling and excavating, then the rotary excavating piles are integrally poured through the grooves, grouting reinforcement is carried out, and therefore the strength of the tunnel foundation is guaranteed, waterproof treatment is carried out on pile heads, and the waterproof performance of a tunnel is guaranteed.
本发明提供一种明挖隧道仰拱施工方法，步骤S1，在对应的点位进行旋挖桩施工；步骤S2，在旋挖桩的桩头进行防水处理；步骤S3，混凝土垫层浇筑至旋挖桩设计桩顶标高上方；步骤S4，在混凝土垫层基面上铺设土工布；步骤S5，铺设混凝土保护层后进行底板钢筋绑扎；步骤S6，仰拱混凝土自仰拱中心向两侧对称连续浇筑。通过填方和挖方初步对隧道基础进行成型，然后通过沟槽将旋挖桩一体浇注，并在进行注浆加固，从而保证隧道基础的强度，桩头进行防水处理从而保证隧道防水性能。
Open cut tunnel inverted arch construction method
The invention provides a construction method for an inverted arch of an open-cut tunnel. The construction method comprises the steps that S1, rotary excavating pile construction is conducted at corresponding point positions; s2, waterproof treatment is conducted on the pile head of the rotary excavating pile; s3, a concrete cushion layer is poured to the position above the designed pile top elevation of the rotary excavating pile; s4, geotextile is laid on the base face of the concrete cushion layer; s5, after the concrete protection layer is laid, bottom plate reinforcing steel bars are bound; and S6, inverted arch concrete is symmetrically and continuously poured from the center of the inverted arch to the two sides. The tunnel foundation is preliminarily formed through filling and excavating, then the rotary excavating piles are integrally poured through the grooves, grouting reinforcement is carried out, and therefore the strength of the tunnel foundation is guaranteed, waterproof treatment is carried out on pile heads, and the waterproof performance of a tunnel is guaranteed.
本发明提供一种明挖隧道仰拱施工方法，步骤S1，在对应的点位进行旋挖桩施工；步骤S2，在旋挖桩的桩头进行防水处理；步骤S3，混凝土垫层浇筑至旋挖桩设计桩顶标高上方；步骤S4，在混凝土垫层基面上铺设土工布；步骤S5，铺设混凝土保护层后进行底板钢筋绑扎；步骤S6，仰拱混凝土自仰拱中心向两侧对称连续浇筑。通过填方和挖方初步对隧道基础进行成型，然后通过沟槽将旋挖桩一体浇注，并在进行注浆加固，从而保证隧道基础的强度，桩头进行防水处理从而保证隧道防水性能。
Open cut tunnel inverted arch construction method
一种明挖隧道仰拱施工方法
LI XINGYI (author) / ZHANG YALEI (author) / TAO YILONG (author) / YIN JINGLONG (author) / WEI ZHIHUI (author) / YAO TIANFENG (author) / LI SEN (author) / SONG XIAOYAN (author) / HAO ZHOUXIN (author) / LIU JIAHAO (author)
2024-10-25
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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