A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Manufacturing method of open caisson
The invention discloses a manufacturing method of an open caisson. The method comprises construction preparation work, foundation pit excavation and sand cushion layer and plain concrete cushion layermanufacturing, foundation pit excavation and sand cushion layer and plain concrete cushion layer manufacturing, open caisson first, second and third section manufacturing, open caisson first sinking,open caisson fourth and fifth section manufacturing, and open caisson second sinking. The open caisson adopts a non-drainage sinking process, the soil taking mode is air mud suction diver matching, and the sinking aiding mode is sinking by a pressing sinking method and sinking aiding by thixotropic mud resistance reduction; and the method further comprises underwater plain concrete bottom sealingof the open caisson, manufacturing of an open caisson bottom plate, and pipeline buttress, blowoff chamber and finishing construction. A five-section manufacturing method and a secondary sinking construction method are adopted; the pouring compactness is convenient to control, the pouring operation difficulty is low, the technical requirement threshold is low, the construction efficiency is high,the quality is easy to control, the construction safety factor is high, and the engineering cost is effectively reduced.
本发明公开了一种沉井的制作方法，包括施工准备工作，基坑开挖及砂垫层、素砼垫层制作，基坑开挖及砂垫层、素砼垫层制作，沉井第一、二、三节制作，沉井第一次下沉，沉井第四、五节制作，沉井第二次下沉；沉井采用不排水下沉工艺，取土方式为空气吸泥潜水员配合，助沉方式为压沉法下沉和触变泥浆减阻助沉；沉井水下素砼封底，沉井底板制作，管道支墩、排泥井及尾工施工；本发明采用分五节制作方法以及二次下沉的施工方法；浇筑密实度便于控制，浇筑操作难度低，技术要求门槛低，施工效率高、质量易控制、施工安全系数高、有效降低工程成本。
Manufacturing method of open caisson
The invention discloses a manufacturing method of an open caisson. The method comprises construction preparation work, foundation pit excavation and sand cushion layer and plain concrete cushion layermanufacturing, foundation pit excavation and sand cushion layer and plain concrete cushion layer manufacturing, open caisson first, second and third section manufacturing, open caisson first sinking,open caisson fourth and fifth section manufacturing, and open caisson second sinking. The open caisson adopts a non-drainage sinking process, the soil taking mode is air mud suction diver matching, and the sinking aiding mode is sinking by a pressing sinking method and sinking aiding by thixotropic mud resistance reduction; and the method further comprises underwater plain concrete bottom sealingof the open caisson, manufacturing of an open caisson bottom plate, and pipeline buttress, blowoff chamber and finishing construction. A five-section manufacturing method and a secondary sinking construction method are adopted; the pouring compactness is convenient to control, the pouring operation difficulty is low, the technical requirement threshold is low, the construction efficiency is high,the quality is easy to control, the construction safety factor is high, and the engineering cost is effectively reduced.
本发明公开了一种沉井的制作方法，包括施工准备工作，基坑开挖及砂垫层、素砼垫层制作，基坑开挖及砂垫层、素砼垫层制作，沉井第一、二、三节制作，沉井第一次下沉，沉井第四、五节制作，沉井第二次下沉；沉井采用不排水下沉工艺，取土方式为空气吸泥潜水员配合，助沉方式为压沉法下沉和触变泥浆减阻助沉；沉井水下素砼封底，沉井底板制作，管道支墩、排泥井及尾工施工；本发明采用分五节制作方法以及二次下沉的施工方法；浇筑密实度便于控制，浇筑操作难度低，技术要求门槛低，施工效率高、质量易控制、施工安全系数高、有效降低工程成本。
Manufacturing method of open caisson
一种沉井的制作方法
HUANG LONGSHENG (author) / ZHANG ZULI (author) / LIU YULONG (author) / LIAO YIBO (author) / WU MANHUA (author)
2020-07-10
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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