Installation method of underground concrete wall formwork of row pile supporting structure
An installation method and technology for concrete walls, applied in sheet pile walls, excavation, underwater structures, etc., can solve problems such as difficulty in ensuring the strength, rigidity and stability of the formwork system, formwork deformation, and affecting project quality. It is not easy to achieve Effect of Formwork Deformation, Stiffness and Stability Guarantee
Inactive Publication Date: 2014-01-01
SHANGHAI ERSHIYE CONSTR CO LTD
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[0002] In the construction of underground concrete structures, the reinforced concrete side walls are mostly fixed with the method of top support to install the formwork system, that is, steel pipes are used as oblique supports, one end is supported on the skeleton of the formwork system, and the other end is supported on the ground of the foundation pit or On the nearby scaffolding, due to the difficulty in ensuring the strength, rigidity and stability of the formwork system, formwork deformation is prone to occur when pouring concrete, which will affect the quality of the project
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[0030] The present invention is further illustrated below by specific examples.
[0031] A method for installing concrete pouring formwork for underground structures; its feature is: comprising
[0032] Step 1, such as figure 1 , figure 2 As shown, retaining piles 1 are arranged on the soil body 8 on the side of the foundation pit according to a certain interval;
[0033] Step 2, foundation pit excavation;
[0034] Step 3, if image 3 As shown, the reinforcement bolts 2 are vertically spaced on each enclosure pile 1, and the anchor bolts 3 are vertically spaced in the side soil 8;
[0035] Step 4, such as Figure 4 , Figure 5 As shown, cover the steel wire mesh 4 on the side soil body 8, and use the reinforcement bolt 2 and the pull anchor bolt 3 to compress it;
[0036] Step 5, such as image 3 , Figure 7 As shown, the ring beam 5 is continuously arranged in the horizontal direction, and the ring beam 5 is respectively connected with the surrounding protection...
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The invention relates to an underground concrete structure construction method, in particular to an installation method of an underground concrete wall formwork of a row pile supporting structure. The method includes the steps: firstly, arranging reinforced concrete supporting piles in surrounding soil of a foundation pit; secondly, excavating the foundation pit; thirdly, arranging embedded steel bar bolts on the supporting piles, and arranging tension anchor bolts in lateral soil between every two piles; fourthly, covering the lateral soil of the foundation pit with a steel wire mesh; fifthly, arranging an annular girder; sixthly, arranging formwork split bolts on the side face of the annular girder; seventhly, spraying a concrete supporting layer to the side face of the foundation pit all sidedly; eighthly, installing a concrete poured formwork on the basis of the formwork split bolts, and fixing the concrete poured formwork. The method is suitable for side wall construction of underground reinforced concrete structures in arrangements in various shapes, strength, rigidity and stability of a concrete poured formwork system constructed by the method are guaranteed, and the formwork is less prone to deformation during concrete pouring.
Description
technical field [0001] The invention relates to a construction method of an underground concrete structure, in particular to an installation method of an underground concrete wall formwork enclosed by rows of piles. Background technique [0002] In the construction of underground concrete structures, the reinforced concrete side walls are mostly fixed with the method of top support to install the formwork system, that is, steel pipes are used as oblique supports, one end is supported on the skeleton of the formwork system, and the other end is supported on the ground of the foundation pit or On the nearby scaffolding, since it is difficult to ensure the strength, rigidity and stability of the formwork system, it is easy to cause formwork deformation when pouring concrete, which will affect the quality of the project. Contents of the invention [0003] The object of the present invention is to provide a method for installing an underground concrete wall formwork enclose...
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IPC IPC(8): E02D29/045E02D17/04E02D5/20
Inventor 张凤勇周大力
Owner SHANGHAI ERSHIYE CONSTR CO LTD
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