Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Construction method for ultra-long cast-in-place pile in ultra-thick silt layer in offshore area
The invention belongs to the technical field of cast-in-place pile construction, and relates to an offshore area ultra-thick sludge layer ultra-long cast-in-place pile construction method which comprises the following steps: S1, surveying and setting out, and determining point positions; s2, placing a driving and pulling machine in place, and burying a pile casing; s3, drilling to form a hole; s4, pile hole forming time planning; s5, pile length and sediment detection; s6, concrete is poured; and S7, earth excavation and water interception construction. According to the construction method, the construction site of the drilling machine and the hole forming quality are effectively ensured through the construction method that piling is conducted firstly and then excavation is conducted, the hole wall can be effectively protected by burying the pile casing, the influence of the silt geology on the hole forming process and the influence of the surrounding soil layer on the pile body in the concrete pouring process are reduced, silt collapse is prevented, and the construction safety is improved; and a driving and pulling machine is adopted for rapidly burying the pile casing, the construction efficiency is improved, through water interception construction, the influence of the sludge water level in the construction process is avoided, the drilling hole forming time and the pile hole forming time are planned, efficient treatment of a sludge layer is achieved, and the construction period is shortened.
本发明属于灌注桩施工技术领域，涉及一种近海区域超厚淤泥层超长灌注桩施工方法，包括如下步骤S1，测量放线，确定点位；S2，打拔机就位，护筒埋设；S3，钻进成孔；S4，桩成孔时间规划；S5，桩长及沉渣检测；S6，浇筑混凝土；S7，土方开挖，截水施工。本发明通过先打桩后开挖的施工方法，有效确保钻机的施工场地以及成孔质量，通过埋设护筒可以有效地保护孔壁，降低淤泥地质对成孔过程以及混凝土浇筑过程中四周土层对桩身的影响，防止淤泥坍塌，提供施工的安全性，并采用打拔机进行护筒的迅速埋设，提高施工效率，通过截水施工，避免施工时淤泥水位的影响，进行钻进成孔和桩成孔时间的规划，实现对淤泥层的高效处理，减少施工周期。
Construction method for ultra-long cast-in-place pile in ultra-thick silt layer in offshore area
The invention belongs to the technical field of cast-in-place pile construction, and relates to an offshore area ultra-thick sludge layer ultra-long cast-in-place pile construction method which comprises the following steps: S1, surveying and setting out, and determining point positions; s2, placing a driving and pulling machine in place, and burying a pile casing; s3, drilling to form a hole; s4, pile hole forming time planning; s5, pile length and sediment detection; s6, concrete is poured; and S7, earth excavation and water interception construction. According to the construction method, the construction site of the drilling machine and the hole forming quality are effectively ensured through the construction method that piling is conducted firstly and then excavation is conducted, the hole wall can be effectively protected by burying the pile casing, the influence of the silt geology on the hole forming process and the influence of the surrounding soil layer on the pile body in the concrete pouring process are reduced, silt collapse is prevented, and the construction safety is improved; and a driving and pulling machine is adopted for rapidly burying the pile casing, the construction efficiency is improved, through water interception construction, the influence of the sludge water level in the construction process is avoided, the drilling hole forming time and the pile hole forming time are planned, efficient treatment of a sludge layer is achieved, and the construction period is shortened.
本发明属于灌注桩施工技术领域，涉及一种近海区域超厚淤泥层超长灌注桩施工方法，包括如下步骤S1，测量放线，确定点位；S2，打拔机就位，护筒埋设；S3，钻进成孔；S4，桩成孔时间规划；S5，桩长及沉渣检测；S6，浇筑混凝土；S7，土方开挖，截水施工。本发明通过先打桩后开挖的施工方法，有效确保钻机的施工场地以及成孔质量，通过埋设护筒可以有效地保护孔壁，降低淤泥地质对成孔过程以及混凝土浇筑过程中四周土层对桩身的影响，防止淤泥坍塌，提供施工的安全性，并采用打拔机进行护筒的迅速埋设，提高施工效率，通过截水施工，避免施工时淤泥水位的影响，进行钻进成孔和桩成孔时间的规划，实现对淤泥层的高效处理，减少施工周期。
Construction method for ultra-long cast-in-place pile in ultra-thick silt layer in offshore area
一种近海区域超厚淤泥层超长灌注桩施工方法
SHI YULONG (Autor:in) / WANG HAN (Autor:in) / YUE HONGJIE (Autor:in) / ZENG YAXUN (Autor:in) / JIAO CHEN (Autor:in) / JIA LIN (Autor:in) / ZHANG QIANG (Autor:in) / SHI NINA (Autor:in)
23.01.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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