Double-row Larsen steel sheet pile construction method

Abstract

The application provides a double-row Larsen steel sheet pile construction method, which comprises the following steps: (1) measuring and positioning; (2) using a piling device to drive in a first lock, then connecting the first lock and the Larsen steel sheet pile above the ground, driving in the Larsen steel sheet pile through the piling device to obtain a double-row Larsen steel sheet pile structure unit; repeating the operation, connecting multiple structure units to obtain the double-row Larsen steel sheet pile. The double-row Larsen steel sheet pile construction method takes the structure unit as a construction unit, realizes the stable connection of the double-row Larsen steel sheet pile through the connection of the first lock and the Larsen steel sheet pile, is convenient to construct and is high in efficiency; the double-row Larsen steel sheet pile obtained after construction is high in integrity and better in supporting effect.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of engineering facilities, and particularly relates to a double-row Larsen steel sheet pile construction method. BACKGROUND

[0002] In foundation pit engineering construction, some foundation pits adopt single-row Larsen steel sheet pile support which cannot meet the design requirements, so double-row Larsen steel sheet piles are needed. However, the conventional double-row Larsen steel sheet piles are two rows of piles which are not connected, the front row of pile bodies are connected together through a surrounding purlin to form a whole, and the rear row is only connected through the lock of the Larsen steel sheet pile and is in a disconnected state with the front row of piles. This mode may have the problem of poor integrity of the support structure, thereby affecting the support effect. In addition, the connection arrangement of the Larsen steel sheet pile is not easy to change the direction, and how to better realize the connection between the Larsen steel sheet piles in different arrangement directions is also a problem to be solved urgently.

[0003] Therefore, it is necessary to provide a double-row Larsen steel sheet pile construction method, which arranges the double rows of Larsen steel sheet piles through a structural unit, has better support effect, and can realize the connection between the Larsen steel sheet piles in different directions and is easy to construct. SUMMARY

[0004] The application aims to provide a double-row Larsen steel sheet pile construction method, which solves the problem that the front and rear rows of pile bodies are separated in the prior art double-row Larsen steel sheet pile construction process, and has poor support effect.

[0005] To achieve the above-mentioned purpose, the technical scheme adopted by the application is as follows.

[0006] A double-row Larsen steel sheet pile construction method comprises the following steps:

[0007] (1) measuring and positioning;

[0008] (2) using a piling device to drive in a first lock, then connecting the first lock and the Larsen steel sheet pile above the ground, driving in the Larsen steel sheet pile through the piling device to obtain a double-row Larsen steel sheet pile structural unit; repeating the operation, connecting multiple structural units to obtain a double-row Larsen steel sheet pile.

[0009] In the application, the double-row Larsen steel sheet pile comprises multiple structural units, the structural unit comprises two parallel Larsen steel sheet piles and a first lock, and the two parallel Larsen steel sheet piles are fixedly connected through the first lock; two adjacent structural units are fixedly connected through the first lock in one structural unit and the two Larsen steel sheet piles in another structural unit.

[0010] In the application, the first lock comprises a first main body and four first fixing parts, and the four first fixing parts are fixedly connected to the first main body.

[0011] Further, the four first fixing parts are two groups, respectively fixedly connected on both sides of the first body part, and symmetrically arranged at both ends of the first body part.

[0012] In the application, the Larsen steel sheet pile comprises a second body part, a second fixing part and a connecting part.

[0013] Further, the second fixing part is connected with the second body part through the connecting part.

[0014] Further, the connecting part is provided with two, and the second fixing part is provided with two.

[0015] Further, the two connecting parts are symmetrically arranged at both ends of the second body part, and the two second fixing parts are symmetrically arranged at both ends of the second body part.

[0016] In the application, the construction steps of the second lock are further included, specifically, the second lock is connected with the Larsen steel sheet pile in the structural unit, and then the second lock is driven into by the piling equipment.

[0017] The application can be improved as follows: the second lock is connected with the structural unit, and two Larsen steel sheet piles arranged in parallel in the structural unit are fixed to form a closed structure.

[0018] Further, the second lock comprises a third body part and a third fixing part, and the third fixing part is fixedly connected on the third body part.

[0019] Further, the third fixing part is provided with two, respectively fixedly connected at both ends of the third body part.

[0020] The application can be further improved as follows: the construction steps of the first connecting piece are further included, specifically, the first connecting piece is connected with the Larsen steel sheet pile in the structural unit, and then the first connecting piece is driven into by the piling equipment.

[0021] In the application, the first connecting piece comprises a second lock and a Larsen steel sheet pile, the second lock is fixedly connected with the Larsen steel sheet pile, and the first connecting piece is connected with the external structural unit through the second lock and the Larsen steel sheet pile. The longitudinal extension of the double-row Larsen steel sheet pile can be realized through the first connecting piece.

[0022] Further, the third body part of the second lock of the first connecting piece is fixedly connected with the second body part of the Larsen steel sheet pile of the first connecting piece.

[0023] Further, the third fixing part of the second lock of the first connecting piece is connected with the second fixing part of the Larsen steel sheet pile of the external structural unit, and the second fixing part of the Larsen steel sheet pile of the first connecting piece is connected with the first fixing part of the first lock of the external structural unit.

[0024] The application can also be improved by further comprising a construction step of connecting the second connecting member with the Larsen steel sheet pile in the structural unit, and then driving the second connecting member into the ground by using a pile driving equipment.

[0025] In the application, the second connecting member is connected with the external structural unit; the second connecting member comprises a second lock, a Larsen steel sheet pile and a first fixing member; the second lock is fixedly connected with the Larsen steel sheet pile, the second lock is connected with the first fixing member, and the Larsen steel sheet pile is connected with the first fixing member, so that the second lock, the Larsen steel sheet pile and the first fixing member form a triangular structure. By adjusting the connection angle of the Larsen steel sheet pile in the second connecting member with the second lock and the first fixing member, the second connecting member can be connected with the structural unit, so that the double-row Larsen steel sheet pile can extend to different angles to meet more requirements.

[0026] Further, the second connecting member is fixedly connected with the external structural unit through the third fixing part of the second lock; and the second connecting member is fixedly connected with the first fixing part of the first lock of the external structural unit through the second fixing part of the Larsen steel sheet pile of the second connecting member.

[0027] Further, the second connecting member further comprises a second fixing member, the Larsen steel sheet pile of the second connecting member is fixedly connected with the second fixing member, and the second lock of the second connecting member is fixedly connected with the second fixing member.

[0028] Further, the second connecting member further comprises a second fixing member, the second fixing member is fixedly connected with the third main body part of the second lock of the second connecting member, so that one side of the second fixing member is arranged in parallel with the second main body part of the Larsen steel sheet pile of the second connecting member. By arranging the second fixing member, the construction machinery can clench the second fixing member and the second main body part of the Larsen steel sheet pile during the installation and construction of the double-row Larsen steel sheet pile connecting structure, so as to facilitate the construction and make the stress more uniform, and the second lock of the second connecting member and the Larsen steel sheet pile are not damaged.

[0029] Further, the second connecting member further comprises a third fixing member, the third fixing member is fixedly connected inside the triangular structure formed by the second lock, the Larsen steel sheet pile and the first fixing member, so that the third fixing member supports the triangular structure. By arranging the third fixing member, the strength of the triangular structure during the construction process is further improved.

[0030] Further, the second fixing member and the third fixing member are wedge-shaped members.

[0031] In the application, the first lock and the second lock are both made of steel.

[0032] In the application, the first fixing member is a steel plate, and the second fixing member and the third fixing member are steel plates.

[0033] The present application has the following beneficial effects:

[0034] (1) The double-row Larsen steel sheet pile construction method of the present application takes the structural unit as the construction unit, realizes the double-row stable connection of the double-row Larsen steel sheet pile through the connection of the first lock buckle and the Larsen steel sheet pile, is convenient for construction, and is high in efficiency; the double-row Larsen steel sheet pile obtained after construction is strong in integrity and has better supporting effect.

[0035] (2) The double-row Larsen steel sheet pile of the present application realizes the connection between Larsen steel sheet piles in different directions through the first connecting piece and the second connecting piece, has better adaptability, and can meet the requirements of different engineering constructions. BRIEF DESCRIPTION OF DRAWINGS

[0036] The present application will be further described in detail below in combination with the drawings and specific embodiments.

[0037] Figure 1 It is a schematic diagram of the overall structure of the double-row Larsen steel sheet pile of the present application;

[0038] Figure 2 It is a front view of the double-row Larsen steel sheet pile of the present application;

[0039] Figure 3 It is a left view of the double-row Larsen steel sheet pile of the present application;

[0040] Figure 4 It is a top view of the double-row Larsen steel sheet pile of the present application;

[0041] Figure 5 It is a schematic diagram of the structure of the structural unit of the present application;

[0042] Figure 6 It is a schematic diagram of the overall structure of the first connecting piece of the present application;

[0043] Figure 7 It is a front view of the first connecting piece of the present application;

[0044] Figure 8 It is a schematic diagram of the overall structure of the second connecting piece of the present application;

[0045] Figure 9 It is a front view of the second connecting piece of the present application;

[0046] Figure 10 It is a rear view of the second connecting piece of the present application;

[0047] Figure 11 It is a left view of the second connecting piece of the present application;

[0048] Figure 12 It is a schematic diagram of the structure of the first lock buckle of the present application;

[0049] Figure 13The overall structure of the second lock is shown in the schematic view of the present application.

[0050] Figure 14 The overall structure of the Larson steel sheet pile of the present application is shown in the schematic view.

[0051] In the drawings, the following are marked: 1, first component; 2, second component; 3, third component; 4, structural unit; 5, first connecting piece; 6, second connecting piece; 7, first lock; 8, Larson steel sheet pile; 9, second lock; 10, first fixing piece; 11, second fixing piece; 12, third fixing piece; 701, first main body part; 702, first fixing part; 801, second main body part; 802, second fixing part; 803, connecting part; 901, third main body part; 902, third fixing part. DETAILED DESCRIPTION

[0052] As shown in the double-row Larson steel sheet pile, Figures 1-14 the first component 1, the second component 2, and the third component 3. The first component 1 is connected by three structural units 4 in sequence, the second component 2 is connected by three structural units 4 in sequence, and the third component 3 is connected by three structural units 4 in sequence.

[0053] Each structural unit 4 includes two parallel Larson steel sheet piles 8 and a first lock 7, and the two parallel Larson steel sheet piles 8 are fixedly connected by the first lock 7. The first lock 7 in one structural unit 4 is fixedly connected with the two Larson steel sheet piles 8 in another structural unit 4.

[0054] Specifically, the first lock 7 includes a first main body part 701 and four first fixing parts 702, the four first fixing parts 702 are divided into two groups and fixedly connected on both sides of the first main body part 701, and symmetrically arranged at both ends of the first main body part 701. The Larson steel sheet pile 8 includes a second main body part 801, two second fixing parts 802, and two connecting parts 803, each second fixing part 802 is connected with the second main body part 801 through a connecting part 803, and the two connecting parts 803 are symmetrically arranged at both ends of the second main body part 801, and the two second fixing parts 802 are symmetrically arranged at both ends of the second main body part 801. The second lock 9 includes a third main body part 901 and two third fixing parts 902, and the two third fixing parts 902 are fixedly connected at both ends of the third main body part 901. In this embodiment, the first lock 7 and the second lock 9 are both made of steel.

[0055] The first component 1 and the second component 2 are fixedly connected by the first connecting piece 5, and the first component 1 and the third component 3 are fixedly connected by the second connecting piece 6.

[0056] Specifically, the first connecting piece 5 comprises the second lock buckle 9 and the Larsen steel sheet pile 8, the third body part 901 of the second lock buckle 9 is fixedly connected with the second body part 801 of the Larsen steel sheet pile 8 of the first connecting piece 5; the first connecting piece 5 is fixedly connected with the two Larsen steel sheet piles 8 in the structure unit 4 at the end of the first member 1 through the third fixing part 902 of the second lock buckle 9; the first connecting piece 5 is fixedly connected with the first fixing part 702 of the first lock buckle 7 in the structure unit 4 at the end of the second member 2 through the second fixing part 802 of the Larsen steel sheet pile 8 of the first connecting piece 5. The second connecting piece 6 comprises the second lock buckle 9, the Larsen steel sheet pile 8, the first fixing piece 10, the second fixing piece 11 and the third fixing piece 12; wherein the second lock buckle 9 is fixedly connected with the Larsen steel sheet pile 8, the second lock buckle 9 is connected with the first fixing piece 10, and the Larsen steel sheet pile 8 is connected with the first fixing piece 10, so that the second lock buckle 9, the Larsen steel sheet pile 8 and the first fixing piece 10 form a triangular structure. The second fixing piece 11 is fixedly connected with the third body part 901 of the second lock buckle 9 of the second connecting piece 6, so that one side of the second fixing piece 11 is arranged in parallel with the second body part 801 of the Larsen steel sheet pile 8 of the second connecting piece 6. The third fixing piece 12 is fixedly connected inside the triangular structure formed by the second lock buckle 9, the Larsen steel sheet pile 8 and the first fixing piece 11, so that the third fixing piece 12 supports the triangular structure. The second connecting piece 6 is fixedly connected with the structure unit 4 at the end of the first member 1 through the third fixing part 902 of the second lock buckle 9. The second connecting piece 6 is fixedly connected with the first fixing part 702 of the first lock buckle 7 of the structure unit 4 at the end of the third member 3 through the second fixing part 802 of the Larsen steel sheet pile 8 of the second connecting piece 6. In the embodiment, the first fixing piece 10 is a steel sheet, and the second fixing piece 11 and the third fixing piece 12 are wedge-shaped steel sheets.

[0057] In the present application, the double-row Larsen steel sheet pile is provided with the second lock buckle 9 at the end of the second member 2 and the third member 3, the two Larsen steel sheet piles 8 in the structure unit 4 at the end of the second member 2 and the third member 3 are fixed by the second lock buckle 9, and the structure is more stable.

[0058] The double-row Larsen steel sheet pile construction method comprises the following steps:

[0059] (1) Measurement and positioning of the line;

[0060] (2) First member 1 construction: the first lock buckle 7 is punched into the ground by using a piling device, then the first lock buckle 7 and the Larsen steel sheet pile 8 are connected above the ground, the Larsen steel sheet pile 8 is punched into the ground by using the piling device, and a double-row Larsen steel sheet pile structure unit 4 is obtained; the operation is repeated to complete the connection of three structure units 4, and the first member 1 is obtained;

[0061] (3) the second component 2 construction: first, the first connecting piece 5 construction, specifically, the second lock 9 of the first connecting piece 5 is connected with the Larson steel sheet pile 8 in the end structure unit 4 of the first component 1 on the ground, and the first connecting piece 5 is driven into by the piling equipment; then the structure unit 4 is connected with the first connecting piece 5, and the operation is repeated to complete the second component 2 construction;

[0062] (4) the third component 3 construction: two Larson steel sheet piles 8 are driven into at the left end of the first component 1, the second fixing piece 11 of the second connecting piece 6 and the Larson steel sheet pile 8 are clamped by the piling equipment, the second connecting piece 6 is connected with the two Larson steel sheet piles 8, then the structure unit 4 is connected with the first connecting piece 5, and the operation is repeated to complete the third component 3 construction, that is, the overall construction of the double-row Larson steel sheet pile is completed.

[0063] The above embodiments of the application are not intended to limit the protection scope of the application, and the embodiments of the application are not limited thereto. According to the above content of the application, according to the ordinary technical knowledge and common methods in the art, other various forms of modifications, replacements or changes of the above structure of the application, which are made without departing from the above basic technical idea of the application, should fall within the protection scope of the application.

Claims

1. A method of construction of double-row Larssen sheet piles, characterized in that, Includes the following steps: (1) Measurement, layout, and positioning; (2) Drive the first lock (7) into the ground using a piling equipment, and then connect the first lock (7) and the Larssen sheet pile (8) above the ground. Drive the Larssen sheet pile (8) into the ground using a piling equipment to obtain a double-row Larssen sheet pile structural unit (4). Repeat the operation to connect multiple structural units (4) to obtain a double-row Larssen sheet pile. The construction steps also include the second connector (6). Specifically, the second connector (6) is connected to the Larssen sheet pile (8) in the structural unit (4), and then the second connector (6) is driven in using a piling device. The second connector (6) is connected to the external structural unit (4). The second connector (6) includes a second latch (9), a Larssen sheet pile (8), and a first fixing member (10). The second latch (9) is fixedly connected to the Larssen sheet pile (8), and the second latch (9) is connected to the first fixing member (10). The Larssen sheet pile (8) is connected to the first fixing member (10), so that the second latch (9), the Larssen sheet pile (8), and the first fixing member (10) form a triangular structure. The second latch (9) includes a third main body (901) and a third fixing part (902), wherein the third fixing part (902) is fixedly connected to the third main body (901); It also includes a second fixing member (11), the Larssen sheet pile (8) of the second connector (6) is fixedly connected to the second fixing member (11), the second latch (9) of the second connector (6) is fixedly connected to the second fixing member (11); the third main body (901) of the second fixing member (11) and the second latch (9) of the second connector (6) are fixedly connected, so that one side of the second fixing member (11) is parallel to the second main body (801) of the Larssen sheet pile (8) of the second connector (6).

2. The double-row Larsen steel sheet pile construction method according to claim 1, characterized by, The double-row Larssen sheet piles include multiple structural units (4). Each structural unit (4) includes two parallel Larssen sheet piles (8) and a first locking buckle (7). The two parallel Larssen sheet piles (8) are fixedly connected by the first locking buckle (7). Two adjacent structural units (4) are fixedly connected to the two Larssen sheet piles (8) in the other structural unit (4) through the first locking buckle (7) in one structural unit (4).

3. The double-row Larsen steel sheet pile construction method according to claim 2, characterized by, The first latch (7) includes a first main body (701) and four first fixing parts (702), which are fixedly connected to the first main body (701).

4. The construction method for double-row Larssen sheet piles according to claim 3, characterized in that, The Larssen sheet pile (8) includes a second main body (801), a second fixing part (802), and a connecting part (803); the second fixing part (802) is connected to the second main body (801) through the connecting part (803).

5. The construction method for double-row Larssen sheet piles according to any one of claims 1-4, characterized in that, It also includes the construction steps of the second locking (9), specifically, connecting the second locking (9) to the Larssen sheet pile (8) in the structural unit (4), and then driving the second locking (9) into place using a piling equipment.

6. The construction method for double-row Larssen sheet piles according to claim 5, characterized in that, The second latch (9) is connected to the structural unit (4) to fix the two parallel Larssen sheet piles (8) in the structural unit (4) to form a closed structure.

7. The construction method for double-row Larssen sheet piles according to claim 5, characterized in that, It also includes the construction steps of the first connector (5), specifically, connecting the first connector (5) to the Larssen sheet pile (8) in the structural unit (4), and then driving the first connector (5) into the pile using a pile driving equipment.

8. The construction method for double-row Larssen sheet piles according to claim 7, characterized in that, The first connector (5) includes a second latch (9) and a Larssen sheet pile (8). The second latch (9) is fixedly connected to the Larssen sheet pile (8). The first connector (5) is connected to the external structural unit (4) through the second latch (9) and the Larssen sheet pile (8).

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