A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Air curtain sinking assisting device
The invention relates to the technical field of bridge open caisson construction, in particular to an air curtain sinking assisting device. The air curtain sinking assisting device comprises at leastone air inlet header pipe, each air inlet header pipe is connected with a plurality of air injection mechanisms, and each air injection mechanism comprises an air niche shell, an air injection pipe and an air injection assembly, wherein the air niche shell is embedded in the outer side face of a caisson wall and communicates with the outer side of the caisson wall; one end of the air injection pipe penetrates into the air niche shell, the other end of the air injection pipe communicates with the air inlet header pipes through a one-way communicating part, and the air inlet header pipes communicates with high-pressure air; and the air injection assembly comprises an outer sleeve layer and an inner sleeve layer, the end, located in the niche shell, of the air injection pipe is provided withthe inner sleeve layer in a sleeved mode, a plurality of air injection holes are formed in the unopened ends of the outer sleeve layer and the inner sleeve layer, and the air injection holes of the outer sleeve layer and the inner sleeve layer are staggered. According to the air curtain sinking assisting device, the one-way communicating part can block air negative pressure, so that mud on the outer side of the wall of the open caisson cannot flow back into the air inlet header pipes through the air injection pipe, and the air injection holes in the outer sleeve layer and the inner sleeve layer are staggered, so that the air injection holes can be prevented from being blocked in the using process of an air curtain.
本申请涉及一种空气幕助沉装置，涉及桥梁沉井施工技术领域，该空气幕助沉装置包括至少一个进气总管，每个进气总管均连接多个喷气机构，喷气机构包括：气龛外壳，其嵌设于井壁的外侧面，并与井壁外侧连通；喷气管，其一端穿设于气龛外壳内，另一端通过单向导通部件连通进气总管，进气总管连通高压气体；喷气组件，其包括外套层和内套层，内套层套设于喷气管位于气龛外壳内的端部，外套层和内套层未开口的一端均设有多个喷气孔，且二者的喷气孔相互错开设置。本申请，单向导通部件可阻断气体负压从而使沉井井壁外侧的泥浆无法经喷气管回流至进气总管内，通过将外套层和内套层的喷气孔相互错开设置，还可防止空气幕使用过程中喷气孔堵塞。
Air curtain sinking assisting device
The invention relates to the technical field of bridge open caisson construction, in particular to an air curtain sinking assisting device. The air curtain sinking assisting device comprises at leastone air inlet header pipe, each air inlet header pipe is connected with a plurality of air injection mechanisms, and each air injection mechanism comprises an air niche shell, an air injection pipe and an air injection assembly, wherein the air niche shell is embedded in the outer side face of a caisson wall and communicates with the outer side of the caisson wall; one end of the air injection pipe penetrates into the air niche shell, the other end of the air injection pipe communicates with the air inlet header pipes through a one-way communicating part, and the air inlet header pipes communicates with high-pressure air; and the air injection assembly comprises an outer sleeve layer and an inner sleeve layer, the end, located in the niche shell, of the air injection pipe is provided withthe inner sleeve layer in a sleeved mode, a plurality of air injection holes are formed in the unopened ends of the outer sleeve layer and the inner sleeve layer, and the air injection holes of the outer sleeve layer and the inner sleeve layer are staggered. According to the air curtain sinking assisting device, the one-way communicating part can block air negative pressure, so that mud on the outer side of the wall of the open caisson cannot flow back into the air inlet header pipes through the air injection pipe, and the air injection holes in the outer sleeve layer and the inner sleeve layer are staggered, so that the air injection holes can be prevented from being blocked in the using process of an air curtain.
本申请涉及一种空气幕助沉装置，涉及桥梁沉井施工技术领域，该空气幕助沉装置包括至少一个进气总管，每个进气总管均连接多个喷气机构，喷气机构包括：气龛外壳，其嵌设于井壁的外侧面，并与井壁外侧连通；喷气管，其一端穿设于气龛外壳内，另一端通过单向导通部件连通进气总管，进气总管连通高压气体；喷气组件，其包括外套层和内套层，内套层套设于喷气管位于气龛外壳内的端部，外套层和内套层未开口的一端均设有多个喷气孔，且二者的喷气孔相互错开设置。本申请，单向导通部件可阻断气体负压从而使沉井井壁外侧的泥浆无法经喷气管回流至进气总管内，通过将外套层和内套层的喷气孔相互错开设置，还可防止空气幕使用过程中喷气孔堵塞。
Air curtain sinking assisting device
一种空气幕助沉装置
GAO SHUANGJIAN (author) / LIU RUNZE (author) / ZHAO XIAOJING (author) / SONG XIAOSAN (author) / XU JIAPING (author) / QIN SHUNQUAN (author) / YU XIANGJUN (author) / FENG JIANXIANG (author) / ZHENG QINGGANG (author) / TAN GUOHONG (author)
2021-02-19
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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