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A platform for research: civil engineering, architecture and urbanism
Railway line side slope pile foundation rotary drilling construction method
The invention provides a railway line side slope pile foundation rotary drilling construction method. The railway line side slope pile foundation rotary drilling construction method comprises the following steps that firstly, drilling points of pile foundation holes are marked on a railway line side slope according to a design scheme; 2, the round gravel layer is filled with a pseudo-ginseng ash soil layer, and the pseudo-ginseng ash soil layer is compacted and flattened through a road roller; thirdly, a concrete layer is hardened on the compacted and flattened pseudo-ginseng lime soil layer, and after the concrete layer is hardened, the surface of the concrete layer is flush with the upper end face of the pile foundation after the pile foundation is installed in the pile foundation hole; 4, two anchoring piles are constructed at the position away from the railway line slope during the hardening period of the concrete layer, and the anchoring piles are constructed into the round gravel layer; the pile foundation hole collapse risk is reduced; field leveling is conducted on the round gravel layer, overturning caused by deflection during walking of the rotary drilling rig is prevented, and toppling of the rotary drilling rig is avoided; the upper portion of the rotary drilling rig is connected with the anchoring pile through the cable rope, a pulling effect is achieved when the rotary drilling rig topples over, and the situation that the rotary drilling rig shakes too much and intrudes into the railway line layer range is prevented.
本发明提供一种铁路线边坡桩基旋挖钻施工方法，包括如下步骤：步骤一、根据设计方案在铁路线边坡上标记桩基孔的钻孔点；步骤二、将三七灰土层填至圆砾层上，并用压路机将三七灰土层压实、压平；步骤三、在压实、压平的三七灰土层上进行混凝土层硬化，混凝土层硬化后其表面与桩基安装于桩基孔后的上端面平齐；步骤四、混凝土层硬化期间在远离铁路线边坡的位置施工两根锚固桩，锚固桩施工至圆砾层中；减少桩基孔塌孔风险；对圆砾层进行场地平整，防止旋挖钻机行走时歪斜导致倾覆，避免旋挖钻机倾倒；用缆风绳将旋挖钻机上部与锚固桩连接，在旋挖钻机倾倒时起到拉拽作用，防止旋挖钻机晃动过大，侵入铁路线层范围。
Railway line side slope pile foundation rotary drilling construction method
The invention provides a railway line side slope pile foundation rotary drilling construction method. The railway line side slope pile foundation rotary drilling construction method comprises the following steps that firstly, drilling points of pile foundation holes are marked on a railway line side slope according to a design scheme; 2, the round gravel layer is filled with a pseudo-ginseng ash soil layer, and the pseudo-ginseng ash soil layer is compacted and flattened through a road roller; thirdly, a concrete layer is hardened on the compacted and flattened pseudo-ginseng lime soil layer, and after the concrete layer is hardened, the surface of the concrete layer is flush with the upper end face of the pile foundation after the pile foundation is installed in the pile foundation hole; 4, two anchoring piles are constructed at the position away from the railway line slope during the hardening period of the concrete layer, and the anchoring piles are constructed into the round gravel layer; the pile foundation hole collapse risk is reduced; field leveling is conducted on the round gravel layer, overturning caused by deflection during walking of the rotary drilling rig is prevented, and toppling of the rotary drilling rig is avoided; the upper portion of the rotary drilling rig is connected with the anchoring pile through the cable rope, a pulling effect is achieved when the rotary drilling rig topples over, and the situation that the rotary drilling rig shakes too much and intrudes into the railway line layer range is prevented.
本发明提供一种铁路线边坡桩基旋挖钻施工方法，包括如下步骤：步骤一、根据设计方案在铁路线边坡上标记桩基孔的钻孔点；步骤二、将三七灰土层填至圆砾层上，并用压路机将三七灰土层压实、压平；步骤三、在压实、压平的三七灰土层上进行混凝土层硬化，混凝土层硬化后其表面与桩基安装于桩基孔后的上端面平齐；步骤四、混凝土层硬化期间在远离铁路线边坡的位置施工两根锚固桩，锚固桩施工至圆砾层中；减少桩基孔塌孔风险；对圆砾层进行场地平整，防止旋挖钻机行走时歪斜导致倾覆，避免旋挖钻机倾倒；用缆风绳将旋挖钻机上部与锚固桩连接，在旋挖钻机倾倒时起到拉拽作用，防止旋挖钻机晃动过大，侵入铁路线层范围。
Railway line side slope pile foundation rotary drilling construction method
一种铁路线边坡桩基旋挖钻施工方法
ZENG LIFEI (author) / GUO JINYONG (author) / WANG FENGPEI (author) / LIU ZONGLE (author) / WANG ZHEN (author) / MEI HUIHAO (author) / HAO SHANGBIN (author)
2022-05-17
Patent
Electronic Resource
Chinese
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