Larsen steel sheet pile capable of synchronously grouting

Abstract

The utility model discloses a Larsen steel sheet pile capable of synchronously grouting, which comprises a steel sheet pile body and is characterized by further comprising a grouting pipe connected in the length direction of a concave surface of the steel sheet pile body; the insert is in contact with the concave surface of the steel sheet pile body and is detachably mounted with the grouting pipe; wherein the plug-in is wedge-shaped and the tip of the plug-in faces downwards so as to reduce the resistance when the plug-in is inserted downwards. The Larsen steel sheet pile has the advantages that the grouting pipe and the inserting piece which can be separated from the grouting pipe are installed on the concave face of the Larsen steel sheet pile, when the Larsen steel sheet pile is pulled out of a stirring wall, the inserting piece is separated from the grouting pipe and left in the stirring wall, grout can flow out of the bottom of the grouting pipe, and therefore the purpose of grouting is achieved. And the pile hole formed after the Larsen steel sheet pile is pulled out is effectively and compactly filled, the structure of the pile hole is not damaged, and the requirement for use in a field with the high deformation requirement is met.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, and particularly relates to a Larssen steel sheet pile capable of synchronous grouting. Background Art

[0002] Steel sheet piles are commonly used for foundation pit support, playing the roles of retaining soil and preventing water seepage. The construction is convenient. However, when pulling out the steel sheet piles, it is easy to cause soil displacement. When used in some sites with high deformation requirements, it is necessary to grout the pile holes. The currently common method is to immediately insert a grouting pipe into the pile hole for grouting after the steel sheet piles are pulled out. Since there will inevitably be inclinations, collisions, etc. during pile pulling, it is easy to cause damage to the pile holes, thus forming a blockage in the vertical direction and being unable to be filled densely during grouting, affecting the deformation control effect. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a Larssen steel sheet pile capable of synchronous grouting according to the deficiencies of the above-mentioned prior art. When the steel sheet pile is pulled out, grouting can be carried out in the pulled-out path, and the injected grout can be densely filled.

[0004] The purpose of the utility model is achieved by the following technical solutions:

[0005] A Larssen steel sheet pile capable of synchronous grouting includes a steel sheet pile body. Among them, it further includes:

[0006] A grouting pipe connected to the concave surface of the steel sheet pile body in the length direction;

[0007] A plug that contacts the concave surface of the steel sheet pile body and is detachably installed with the grouting pipe; where

[0008] The plug is wedge-shaped with the tip facing downwards to reduce the resistance when inserting downwards.

[0009] Optionally, the top of the grouting pipe is lower than the top of the steel sheet pile body.

[0010] Optionally, the grouting pipe is a seamless steel pipe with a through hole penetrating up and down.

[0011] Optionally, the bottom of the plug is flush with the steel sheet pile body after installation.

[0012] Optionally, a long cushion block is further arranged between the grouting pipe and the steel sheet pile body to fill the gap generated between the grouting pipe and the steel sheet pile body.

[0013] Optionally, the plug includes a wedge-shaped insert block with the tip facing downwards, a connecting ring arranged on the top of the insert block, an inserting rod connected to the insert block and located inside the connecting ring, and a hole plug sleeved on the inserting rod.

[0014] Optionally, the wedge-shaped insertion block is in the shape of a right triangle, and the long right-angled side contacts the steel sheet pile body, while the short right-angled side faces the grouting pipe.

[0015] Optionally, the inner diameter of the connecting ring is equal to or slightly larger than the outer diameter of the grouting pipe, and the diameter of the insertion rod is smaller than the inner diameter of the grouting pipe.

[0016] Optionally, the hole plug is a multi-layer continuous rubber ring structure, and the maximum outer diameter of the hole plug is larger than the inner diameter of the grouting pipe.

[0017] Optionally, the outer diameter of the connecting ring is equal to the top width of the insertion block so that the insertion block can fit the concave surface of the steel sheet pile body after the plug-in part is connected to the grouting pipe.

[0018] The advantages of the present utility model are as follows:

[0019] In the Larsen steel sheet pile of the present utility model, by installing a grouting pipe and a plug-in part separable from the grouting pipe on the concave surface, when the Larsen steel sheet pile is pulled out from the mixing wall, the plug-in part is separated from the grouting pipe and remains in the mixing wall, and the slurry can flow out from the bottom of the grouting pipe, and effectively and densely fills the pile hole formed after the Larsen steel sheet pile is pulled out, without damaging the structure of the pile hole, meeting the use requirements of sites with relatively high deformation requirements. Description of the Drawings

[0020] Figure 1 is a schematic structural diagram of the Larsen steel sheet pile of the present utility model;

[0021] Figure 2 is Figure 1 an enlarged view of the plug-in part in

[0022] Figure 3 is a side view of the combination of the grouting pipe and the plug-in part of the present utility model;

[0023] Figure 4 is a schematic structural diagram of the separation of the grouting pipe and the plug-in part of the present utility model;

[0024] Figure 5 is a schematic structural diagram of the plug-in part of the present utility model;

[0025] Figure 6 is a schematic structural diagram of the connection of multiple Larsen steel sheet piles of the present utility model. Detailed Embodiment

[0026] Each mark in the figure is respectively: 1, steel sheet pile body; 2, grouting pipe; 3, plug-in part; 4, long cushion block; 31, hole plug; 32, insertion rod; 33, connecting ring; 34, insertion block.

[0027] Embodiment: Please refer to Figure 1 , Figure 2 andFigure 3 As shown, a L-section steel sheet pile capable of synchronous grouting is presented, including a steel sheet pile body 1. Among them, a grouting pipe 2 is further included, which is connected along the length direction of the concave surface of the steel sheet pile body 1; a plug-in member 3 that contacts the concave surface of the steel sheet pile body 1 and is detachably installed with the grouting pipe 2; the plug-in member 3 is wedge-shaped with the tip facing downwards to reduce the resistance when inserted downwards.

[0028] In this embodiment, as Figure 1 and Figure 4 shown, the top of the grouting pipe 2 is lower than the top of the steel sheet pile body 1, and the grouting pipe 2 is a seamless steel pipe with a through hole running through up and down. After the plug-in member 3 is installed, the bottom is flush with the steel sheet pile body 1, and a long spacer block 4 is also provided between the grouting pipe 2 and the steel sheet pile body 1 to fill the gap generated between the grouting pipe 2 and the steel sheet pile body 1.

[0029] In this embodiment, as Figure 4 and Figure 5 shown, the plug-in member 3 includes a plug block 34 that is wedge-shaped with the tip facing downwards, a connecting ring 33 provided at the top of the plug block 34, a plug rod 32 connected to the plug block 34 and located within the connecting ring 33, and a hole plug 31 sleeved on the plug rod 32. The wedge-shaped plug block 34 is in the shape of a right triangle, with the long right side contacting the steel sheet pile body 1 and the short right side facing the grouting pipe 2.

[0030] In this embodiment, the inner diameter of the connecting ring 33 is equal to or slightly larger than the outer diameter of the grouting pipe 1, the diameter of the plug rod 32 is smaller than the inner diameter of the grouting pipe 2, the hole plug 31 is a multi-layer continuous rubber ring structure, the maximum outer diameter of the hole plug 31 is larger than the inner diameter of the grouting pipe 2, and the outer diameter of the connecting ring 33 is equal to the top width of the plug block 34 so that the plug block 3 can fit the concave surface of the steel sheet pile body 1 after the plug-in member 3 is connected to the grouting pipe 2.

[0031] Further understand the characteristics and functions of the present utility model through the following description.

[0032] A L-section steel sheet pile that can achieve synchronous grouting disclosed in this embodiment is mainly to solve the problem that in the prior art, after the L-section steel sheet pile is pulled out, it is easy to damage the pile hole, which may cause the pile hole to form a blockage in the vertical direction, and the slurry poured subsequently cannot effectively and completely fill the pile hole, affecting the deformation control effect.

[0033] Therefore, this embodiment provides a Larssen sheet pile that can extract the Larssen sheet pile while realizing the perfusion of slurry. It mainly includes a sheet pile body 1. The sheet pile body 1 has a concave surface 11. Along the vertical length direction of the concave surface 11, a grouting pipe 2 made of seamless steel pipe is installed. The top of the grouting pipe 2 is at a certain distance from the top of the sheet pile body 1, and this distance reserves the clamping position for the clamp of the pile inserter. A plug 3 is detachably installed at the bottom of the grouting pipe 2. The plug 3 includes a wedge-shaped insertion block 34, more specifically, it is in the shape of an inverted right triangle with the short side facing up, the long side fitting the concave surface 11 of the sheet pile body 1, and the hypotenuse facing outwards, so that the insertion resistance when the sheet pile body 1 is inserted into the mixing wall can be well reduced.

[0034] The plug 3 further includes a connecting ring 33 integrally provided on the upward short side of the insertion block 34. The outer diameter of the connecting ring 33 is equal to the length of the short side, and the inner diameter is slightly larger than that of the grouting pipe 2, which enables the grouting pipe 2 to be inserted into the connecting ring 33. The plug 3 further includes an insertion rod 32, which is also formed on the short side and is located in the connecting ring 33. The outer diameter of the insertion rod 32 is smaller than that of the grouting pipe 2, which enables the insertion rod 32 to be easily inserted into the grouting pipe 2. A hole plug 31 is formed on the outside of the insertion rod 32. As Figure 5 shown, the hole plug 31 is preferably a corrugated rubber plug and has elasticity. The maximum outer diameter of the hole plug 31 is larger than the inner diameter of the grouting pipe 2, which enables the hole plug 31 to expand and be firmly fixed in the grouting pipe 2 after being inserted into the grouting pipe 2. And a long cushion block 4 is filled between the grouting pipe 2 and the concave surface 11 of the sheet pile body 1.

[0035] During use, the plug 3 is inserted into the grouting pipe 2, and then the sheet pile body 1 is clamped by a pile inserter and slowly inserted into the mixing wall. When the hardness of the mixing wall meets the standard, the sheet pile body 1 is slowly extracted by a pile extractor and other equipment while clamping the sheet pile body 1. When the sheet pile body 1 is pulled out upwards, the plug 3 has been fixed in the mixing wall, so the plug 3 is separated from the grouting pipe 2. At this time, the external slurry flows out from the bottom of the grouting pipe 2. When the sheet pile body 1 is completely extracted, the slurry can completely fill the pile hole. Even if some conditions occur in the pile hole during the extraction process, the slurry can completely and densely fill the pile hole without affecting the deformation control effect.

[0036] In addition, as Figure 6 shown, it is a schematic diagram after multiple sheet pile bodies 1 are continuously connected.

[0037] In summary, the Larssen sheet pile of the present utility model installs a grouting pipe on the concave surface and a plug separable from the grouting pipe. When the Larssen sheet pile is extracted from the mixing wall, the plug is separated from the grouting pipe and remains in the mixing wall, and the slurry can flow out from the bottom of the grouting pipe, and effectively and densely fills the pile hole formed after the Larssen sheet pile is extracted, without damaging the structure of the pile hole, meeting the use requirements of sites with high deformation requirements.

[0038] The above are only the preferred embodiments of the present utility model, and do not limit the implementation manners and protection scope of the present utility model thereby. For those skilled in the art, it should be realized that all the solutions obtained by equivalent substitutions and obvious changes made by using the specification and illustrated content of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A Lassen steel sheet pile capable of synchronous grouting, comprising a steel sheet pile body, characterized in that, Further comprising: A grouting pipe connected to the concave length direction of the steel sheet pile body; A plug that contacts the concave surface of the steel sheet pile body and is detachably installed with the grouting pipe; Wherein The plug is wedge-shaped with the tip facing downwards to reduce the resistance when inserted downwards.

2. The secant pile according to claim 1, wherein The top of the grouting pipe is lower than the top of the steel sheet pile body.

3. The secant pile according to claim 2, wherein The grouting pipe is a seamless steel pipe with a through hole penetrating up and down.

4. The secant pile according to claim 3, wherein After the plug is installed, the bottom is flush with the steel sheet pile body.

5. The secant pile according to claim 4, wherein A long cushion block is also provided between the grouting pipe and the steel sheet pile body to fill the gap generated between the grouting pipe and the steel sheet pile body.

6. The secant pile according to claim 5, wherein The plug includes a wedge-shaped plug block with the tip facing downwards, a connecting ring provided at the top of the plug block, a plug rod connected to the plug block and located within the connecting ring, and a hole plug sleeved on the plug rod.

7. The La Sen sheet pile capable of synchronous grouting according to claim 6, characterized in that, The wedge-shaped plug block is in the shape of a right triangle, with the long right side contacting the steel sheet pile body and the short right side facing the grouting pipe.

8. The secant pile according to claim 7, wherein The inner diameter of the connecting ring is equal to or slightly larger than the outer diameter of the grouting pipe, and the diameter of the plug rod is smaller than the inner diameter of the grouting pipe.

9. The L-section steel sheet pile capable of synchronous grouting according to claim 8, wherein, The hole plug is a multi-layer continuous rubber ring structure, and the maximum outer diameter of the hole plug is larger than the inner diameter of the grouting pipe.

10. The secant pile according to claim 9, wherein The outer diameter of the connecting ring is equal to the top width of the plug block so that the plug block can fit the concave surface of the steel sheet pile body after the plug is connected to the grouting pipe.

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