A method for manufacturing, installing and removing temporary piers in water suitable for bridge erection
A technology for temporary piers and bridges, which is applied in bridge construction, bridge erection/assembly bridges, etc. It can solve the problems of difficult construction methods for inserting cast-in-situ piles, difficulty in controlling construction quality, and difficulty in positioning casings, so as to achieve stable layout and reduce Difficulty of construction, effect of avoiding underwater work
Active Publication Date: 2017-01-11
CHINA GEZHOUBA GROUP MACHINERY & SHIP
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Problems solved by technology
[0003] The use of cast-in-place piles requires specific geological conditions. First of all, there should be a rock cover layer for positioning the casing. However, in Yunnan, Guangxi and other regions of my country, karst landforms are dominant, and there is no cover layer in the turbulent rivers, and most of them are smooth limestone. , it is difficult to locate the casing, and there are great difficulties in the construction method of inserting and driving cast-in-situ piles. Continuing to use this method will increase the difficulty of construction and it will be difficult to control the construction quality
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Embodiment Construction
[0048] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.
[0049] Such as Figure 1-5As shown, the bottom structure of the temporary pier 1 includes a plurality of uprights 104 as a basic frame structure, and two anchor guide holes 110 are processed inside the uprights 104, and anchor hole guide pipes 105 are installed on the outer walls of the anchor guide holes 110, and anchor holes Anchor rod 101 is pre-installed inside hole guide pipe 105, anchor beam 109 is arranged on the top of column 104, and support foot 102 is provided at the bottom end of column 104, and support foot 103 is installed near the position of support foot 102 on column 104, on column 104 Tension beams 107 are also arranged at the top, and reinforcing rods 108 are arranged between adjacent columns 104 .
[0050] Preferably, the interior of the anti-collision buoyancy tank 11 adopts a truss structure 1101 , the inner and outer surfaces are ...
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The invention discloses a novel temporary underwater pier manufacturing, assembling and disassembling method suitable for bridge erection. According to the novel temporary underwater pier manufacturing, assembling and disassembling method, all components of a temporary pier are assembled, a bottom frame of the temporary pier is transported and positioned in water, a bottom structure of the temporary pier is anchored, underwater concrete is poured, then upper structures of the temporary pier are assembled so that a preset height can be achieved, and finally the overall structure of the temporary pier is fixedly installed. The temporary pier structure can be installed and used in a river channel where bored piles are difficult to insert and hit. The gravity type anchor rod tensioning underwater temporary pile is integrally constructed on the water and then integrally lowered, a lot of underwater work is avoided, the construction cost is effectively lowered, the construction efficiency is improved, the construction safety is guaranteed, and the underwater temporary pier is high in practicability and can be applied and popularized within a large range in actual engineering.
Description
technical field [0001] The invention relates to an auxiliary erection temporary pier for bridge erection, in particular to a method for manufacturing, installing and dismantling an underwater temporary pier suitable for bridge erection. Background technique [0002] At present, in the process of erecting cross-river and cross-river bridges in China, temporary piers in water are usually used to assist the erection of bridges. Temporary piers in water can reduce the span of bridge erection, reduce the difficulty and risk of erection. Commonly used temporary piers in water are mainly cast-in-place piles. The main method is to first position the steel casing to the covering layer of the rock surface in the water. After the casing is positioned, it will drill into the rock surface for a certain distance with the drilling rig, and the upper part will extend to the water surface. After the extension is used as the base column, the underwater concrete is poured into the part that go...
Claims
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IPC IPC(8): E01D21/00
CPCE01D21/00
Inventor 陈勇彭水平赵林庄有云卢浩陈凌王海龙张攀胡周李俊
Owner CHINA GEZHOUBA GROUP MACHINERY & SHIP