Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
In-situ suspension protection method for existing pipeline of ultra-wide foundation pit
The invention relates to an ultra-wide foundation pit existing pipeline in-situ suspension protection method which comprises the following steps of S1, pipeline position and cast-in-situ bored pile construction, S2, first-layer earthwork excavation and top beam straining beam concrete supporting, S3, existing pipeline suspension protection device construction, S4, foundation pit peripheral protection piles at existing pipeline I-steel joints are subjected to MJS construction method pile construction, and S5, foundation pit external protection pile construction. S5, the foundation pit is excavated in a layered mode, and steel supports are erected; S6, soil covering and backfilling are conducted; according to the construction method, the enclosure structure is constructed near the range of the existing pipeline, the existing pipeline is suspended by the suspension protection device, and the MJS construction method piles in the range of the foundation pit of the existing pipeline are combined for reinforcement, so that the protection capability of the enclosure structure in the range of the existing pipeline is enhanced, uninterrupted use of the pipeline is ensured, the production and living continuity of surrounding enterprises and residents is maintained, and the construction period is shortened. The ultra-long construction period of the existing important pipeline is shortened, the utilization rate of manpower and machinery in the pipeline changing process is reduced, and the construction cost is greatly reduced.
本发明涉及一种超宽基坑既有管线原位悬吊保护方法，包括如下步骤：S1、管线位置以及钻孔灌注桩，S2、第一层土方开挖与冠梁系梁混凝土支撑，S3、既有管线悬吊保护装置施工，S4、既有管线工字钢接头处的基坑外围护桩采用MJS工法桩施工，S5、基坑分层开挖与钢支撑架设，S6、覆土回填；本发明通过在既有管线范围附近围护结构施工，悬吊保护装置对既有管线的悬吊及结合既有管线基坑范围内MJS工法桩加固，加强既有管线范围内围护结构防护能力，保证管线的不中断使用，维护周边企业、居民的生产、生活连续性，减少改迁既有重要管线的超长施工工期，减小改迁管线过程中的人力机械使用率，极大范围地降低施工成本。
In-situ suspension protection method for existing pipeline of ultra-wide foundation pit
The invention relates to an ultra-wide foundation pit existing pipeline in-situ suspension protection method which comprises the following steps of S1, pipeline position and cast-in-situ bored pile construction, S2, first-layer earthwork excavation and top beam straining beam concrete supporting, S3, existing pipeline suspension protection device construction, S4, foundation pit peripheral protection piles at existing pipeline I-steel joints are subjected to MJS construction method pile construction, and S5, foundation pit external protection pile construction. S5, the foundation pit is excavated in a layered mode, and steel supports are erected; S6, soil covering and backfilling are conducted; according to the construction method, the enclosure structure is constructed near the range of the existing pipeline, the existing pipeline is suspended by the suspension protection device, and the MJS construction method piles in the range of the foundation pit of the existing pipeline are combined for reinforcement, so that the protection capability of the enclosure structure in the range of the existing pipeline is enhanced, uninterrupted use of the pipeline is ensured, the production and living continuity of surrounding enterprises and residents is maintained, and the construction period is shortened. The ultra-long construction period of the existing important pipeline is shortened, the utilization rate of manpower and machinery in the pipeline changing process is reduced, and the construction cost is greatly reduced.
本发明涉及一种超宽基坑既有管线原位悬吊保护方法，包括如下步骤：S1、管线位置以及钻孔灌注桩，S2、第一层土方开挖与冠梁系梁混凝土支撑，S3、既有管线悬吊保护装置施工，S4、既有管线工字钢接头处的基坑外围护桩采用MJS工法桩施工，S5、基坑分层开挖与钢支撑架设，S6、覆土回填；本发明通过在既有管线范围附近围护结构施工，悬吊保护装置对既有管线的悬吊及结合既有管线基坑范围内MJS工法桩加固，加强既有管线范围内围护结构防护能力，保证管线的不中断使用，维护周边企业、居民的生产、生活连续性，减少改迁既有重要管线的超长施工工期，减小改迁管线过程中的人力机械使用率，极大范围地降低施工成本。
In-situ suspension protection method for existing pipeline of ultra-wide foundation pit
一种超宽基坑既有管线原位悬吊保护方法
LOU LYUBING (Autor:in) / LIAO JIJUN (Autor:in) / BAI HAIYANG (Autor:in) / FAN MINGYANG (Autor:in) / XIAO LI (Autor:in) / XU YUZHANG (Autor:in) / CHEN ZHIGANG (Autor:in) / MO XIONG (Autor:in)
27.09.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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