Full-ring steel tunnel segment structure with seal protection door
A protective door and segment technology, which is applied in the shaft lining, tunnel lining, underground chamber, etc., can solve the problems of high risk of construction communication channels, inability to prevent soil, water gushing, and no airtight safety protection structure, etc., to shorten the construction period, Easy assembly, ensuring stability and safety
Inactive Publication Date: 2009-06-17
CHINA RAILWAY LIUYUAN GRP CO LTD
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Problems solved by technology
[0010] The reinforced concrete segment structure is adopted in the above strata, but there is no airtight safety protection structure in the reinforced concrete segment structure, which leads to a high risk of construction communication channels. In the event of construction accidents such as collapse and water gushing, it is impossible to prevent soil and water gushing from entering the shield tunnel
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[0050] like Figure 1 to Figure 20 Shown is a full-ring steel segment structure with a closed protective door, which has a full-ring steel segment frame 1, and the full-ring steel segment frame 1 is assembled from a main frame and a detachable frame. The steel segment structure also has a protective door 3, which is located in the full-ring steel segment frame 1, which is fixedly installed on the main frame, and the installation position is at a corresponding position with the detachable frame. The protective door 3 and The area surrounded by the detachable frame forms an airtight chamber 2. After the protective door 3 is closed, the airtight chamber 2 is airtight and impermeable, which can prevent soil and gushing water from entering the shield tunnel.
[0051]The main frame of the full-ring steel segment frame 1 is a ring structure with side openings, which is assembled from multiple steel segment blocks, and the multiple steel segment blocks are respectively the capping ste...
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The invention discloses a loopful steel duct piece structure with a seal guard door, which is provided with a loopful steel duct piece frame, and is characterized in that the loopful steel duct piece frame is formed by assembling a main body frame and a detachable frame; the loopful steel duct piece structure is provided with a guard door which is positioned in the loopful steel duct piece frame and fixedly installed on the main body frame, and the installation position is corresponding to the position of the detachable frame; and an enclosed chamber is formed in an area enclosed by the guard door and the detachable frame. The loopful steel duct piece structure of the invention can effectively prevent mud and burst water from flowing into shield tunnels when construction accidents such as cave-in collapse, water burst, and the like occur during the process of excavating communication channels, thereby greatly enhancing the construction safety.
Description
technical field [0001] The invention relates to a full-ring steel segment structure, in particular to a full-ring steel segment structure with an airtight protective door. Background technique [0002] At present, the strata crossed by the connecting channel of the shield section of the domestic urban subway are mostly sand layers, weak strata or karst strata. The main construction steps of the shield tunnel connecting channel are as follows: [0003] (1) Firstly, relocate and modify the ground pipeline at the communication channel, and clear the traffic, and then carry out ground jet grouting piles, mixing piles or grouting ground reinforcement. [0004] (2) Assembled reinforced concrete reinforcement segments in the shield section tunnel at the connecting channel. [0005] (3) Temporary support is erected in the shield tunnel to support the segment structure. [0006] (4) Above the opening of the segment of the shield tunnel, the drilling rig drills the hole and uses the...
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IPC IPC(8): E21D11/00E21D11/18E21D11/38
Inventor 魏玉省涂智溢吕剑英杜玲张先锋宋仪朱世友刘建飞胡防洪刘召刚姜宝臣张淑敏赵正蓉刘强
Owner CHINA RAILWAY LIUYUAN GRP CO LTD