Method for rapidly pulling larssen steel sheet pile out of limited space
A technology of Larsen steel sheet piles and confined spaces, applied in sheet pile walls, buildings, infrastructure engineering, etc., can solve the problems of 4 hours of welding, waste of manipulator shifts, waste of finished sheet piles, etc. Achieve the effect of low cost, saving construction period and saving labor
Inactive Publication Date: 2019-03-05
CHINA MCC20 GRP CORP
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Problems solved by technology
However, this method causes a waste of finished sheet piles, and at the same time, the welding time is extremely long. Often, a welder needs to weld for 4 hours to weld a single sheet pile.
Such construction will result in a waste of manipulator shifts and a lot of construction time
Not suitable for time-sensitive construction projects such as emergency repairs and annual repairs
Method used
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Embodiment Construction
[0015] The method for quickly pulling out a Larsen steel sheet pile in a confined space of the present invention comprises:
[0016] Step 1: Make a pull-out tool, which includes an integrated upper anti-skid plate 1 and a lower clamping slot 2 for clamping the head of the main Larsen steel sheet pile. Corresponding through holes 3 are opened on both sides of the clamping slot. see figure 1 ;
[0017] Step 2, opening holes at the head of the Larsen steel sheet pile;
[0018] Step 3, align the slot of the extraction tool with the Larsen steel sheet pile and insert it so that the through holes of the two correspond, and then insert the pin shaft to fix it;
[0019] Step 4, using a manipulator vibrating hammer to clamp the extraction tool and extract the sheet pile;
[0020] Step five, remove the extraction tool for recycling.
[0021] In the method for quickly pulling out the Larsen steel sheet pile in a confined space, step 2 further includes grinding around the hole wall.
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The invention relates to construction of steel sheet piles, in particular to a method for rapidly pulling a larssen steel sheet pile out of a limited space. The method for rapidly pulling the larssensteel sheet pile out of the limited space comprises the steps of 1, producing a pulling-out tool, wherein the pulling-out tool comprises an upper antiskid plate which is smelted integrally and a lowerclamping groove which is used for clamping a pile head of the larssen steel sheet pile, and corresponding through holes are formed in the two sides of the clamping groove; 2, perforating the pile head of the larssen steel sheet pile; 3, aligning the clamping groove of the pulling-out tool with the larssen steel sheet pile and inserting the pulling-out tool, so that the through holes of the pulling-out tool and the larssen steel sheet pile correspond, and then, inserting a pin shaft for fixation; 4, clamping the pulling-out tool with a mechanical arm vibration hammer, and pulling the sheet pile out; and 5, dismounting the pulling-out tool for cycle use. By means of the method for rapidly pulling the larssen steel sheet pile out of the limited space, the larssen steel sheet pile can be rapidly pulled out, and waste is reduced.
Description
technical field [0001] The invention relates to the construction of steel sheet piles, in particular to a method for quickly pulling out Larsen steel sheet piles. Background technique [0002] As a new type of building material, Larsen steel sheet piles can be used as retaining walls for soil, water, and sand when building bridge cofferdams, laying large-scale pipelines, and excavating temporary ditches; Revetment, etc., play an important role in engineering. Larsen steel sheet piles used as cofferdams are not only green and environmentally friendly, but also have fast construction speed, low construction cost, and good waterproof function. [0003] The construction of sheet piles generally uses a manipulator with a vibratory hammer or a crane with a vibratory hammer. Vibration pile extraction is adopted, with high efficiency and easy operation. The vibration generated by vibratory pile pulling is longitudinal vibration. After this vibration is transmitted to the soil lay...
Claims
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IPC IPC(8): E02D9/02
CPCE02D9/02
Inventor 张健
Owner CHINA MCC20 GRP CORP