Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Bridge super-large-diameter pile foundation reaming construction technology
The invention relates to the technical field of bridge engineering, and discloses a bridge super-large-diameter pile foundation reaming construction technology which comprises the following steps that S1, moving seats corresponding to steel casings are built on a construction platform, and the distance between the two moving seats adapts to the distance between two crawler belts of a rotary drilling rig; s2, the rotary drilling rig is driven to the moving seat; s3, the rotary drilling rig drives a drill rod of the rotary drilling rig to move downwards into the steel casing; s4, the drill rod drives a drill bit to downwards pass through the steel casing to reach a riverbed rock-soil layer to drill a riverbed, the drill bit downwards drills to the elevation of the bottom of a hole and takes slag, and the taken slag is stored in a slag box; s5, the rotary drilling rig is replaced, and after the previous rotary drilling rig retreats, the distance between the two moving seats is adjusted to be matched with the distance between the two crawler belts of the next rotary drilling rig; and S6, the steps S2-S5 are repeated till the inner diameter of the expanded hole reaches the preset value of the pile foundation. The drilling effect can be improved.
本申请涉及桥梁工程的技术领域,公开了一种桥梁超大直径桩基扩孔施工工艺，其包括以下步骤，S1，在施工平台上搭建与钢护筒对应的移动座，两个所述移动座的距离适应旋挖钻机两履带之间的距离；S2，将旋挖钻机开至所述移动座上；S3，旋挖钻机驱动自身钻杆向下移动至所述钢护筒内；S4，钻杆带动钻头向下经过所述钢护筒到达河床岩土层对河床进行钻孔，钻头向下钻进至孔底标高并取渣，取出的渣料存放在渣土箱中；S5，更换旋挖钻机，前一旋挖钻机退出后，将两个所述移动座之间的距离调节至与后一旋挖钻机两履带间的距离相适应；S6，重复S2‑S5，直至扩出的孔隙内径达到桩基的预定值。本申请能够提高钻孔效果。
Bridge super-large-diameter pile foundation reaming construction technology
The invention relates to the technical field of bridge engineering, and discloses a bridge super-large-diameter pile foundation reaming construction technology which comprises the following steps that S1, moving seats corresponding to steel casings are built on a construction platform, and the distance between the two moving seats adapts to the distance between two crawler belts of a rotary drilling rig; s2, the rotary drilling rig is driven to the moving seat; s3, the rotary drilling rig drives a drill rod of the rotary drilling rig to move downwards into the steel casing; s4, the drill rod drives a drill bit to downwards pass through the steel casing to reach a riverbed rock-soil layer to drill a riverbed, the drill bit downwards drills to the elevation of the bottom of a hole and takes slag, and the taken slag is stored in a slag box; s5, the rotary drilling rig is replaced, and after the previous rotary drilling rig retreats, the distance between the two moving seats is adjusted to be matched with the distance between the two crawler belts of the next rotary drilling rig; and S6, the steps S2-S5 are repeated till the inner diameter of the expanded hole reaches the preset value of the pile foundation. The drilling effect can be improved.
本申请涉及桥梁工程的技术领域,公开了一种桥梁超大直径桩基扩孔施工工艺，其包括以下步骤，S1，在施工平台上搭建与钢护筒对应的移动座，两个所述移动座的距离适应旋挖钻机两履带之间的距离；S2，将旋挖钻机开至所述移动座上；S3，旋挖钻机驱动自身钻杆向下移动至所述钢护筒内；S4，钻杆带动钻头向下经过所述钢护筒到达河床岩土层对河床进行钻孔，钻头向下钻进至孔底标高并取渣，取出的渣料存放在渣土箱中；S5，更换旋挖钻机，前一旋挖钻机退出后，将两个所述移动座之间的距离调节至与后一旋挖钻机两履带间的距离相适应；S6，重复S2‑S5，直至扩出的孔隙内径达到桩基的预定值。本申请能够提高钻孔效果。
Bridge super-large-diameter pile foundation reaming construction technology
一种桥梁超大直径桩基扩孔施工工艺
CHEN RONG (Autor:in) / CHEN CHAI (Autor:in) / CHEN ZHENKAI (Autor:in) / WANG MING (Autor:in) / LAI XINGHAI (Autor:in)
23.06.2023
Patent
Elektronische Ressource
Chinesisch
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