Water sheet pile construction guiding and positioning device

Abstract

An overwater sheet pile construction guiding and positioning device comprises a guiding frame, a positioning pile is detachably installed at one end of the guiding frame and inserted into water to be fixed, and the other end of the guiding frame is placed on a constructed sheet pile. A guide groove and a sheet pile clamp are arranged on the guide frame, in the sinking process of the sheet pile, the sheet pile is limited front and back by the guide groove, and one side of the sheet pile is clamped and limited by the sheet pile clamp; the guide frame comprises longitudinal connecting beams, the longitudinal connecting beams are arranged left and right at intervals and form a guide groove, vertical beams are fixed to one ends of the two longitudinal connecting beams, and the two vertical beams are connected through a head connecting mechanism; and the other ends of the two longitudinal connecting beams are connected through a tail connecting mechanism. The guiding and positioning device for water sheet pile construction can ensure that indexes such as water pile sinking construction quality, plate joints and perpendicularity meet requirements, and damage to the head of a sheet pile is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the bank protection pile construction field, especially a water board pile construction guiding and positioning device. BACKGROUND

[0002] In order to maintain the stability of the river side slope, the river bank protection needs to be reasonably reconstructed.

[0003] The prestressed concrete U-shaped board pile used in the bank protection reconstruction project is a kind of prefabricated concrete enclosure pile type with high efficiency, good bending resistance and shearing resistance, which is widely used in the fields of river slope treatment, waterway bank protection, port and wharf engineering.

[0004] The pre-tensioning method U-shaped prestressed concrete board pile (hereinafter referred to as U-shaped board pile) is a new type of prestressed concrete foundation enclosure retaining pile component. Because of its unique variable cross-section structure design, the cross-section height is increased, the cross-section resistance to bending moment is increased, and the cross-section width is also increased, which has good bending resistance.

[0005] (1) The standard cross-section width of the board pile is 1m, and the cross-section height is designed to be 300mm-1200mm according to the requirement of bending resistance.

[0006] (2) The stress reinforcement uses prestressed steel bars or prestressed steel strands. By using the prestressed process, the amount of steel bars is greatly saved under the premise of meeting the stress performance, and the cost is reduced.

[0007] (3) The splicing between the board piles uses concave-convex tenon and groove splicing, and rubber water stop rubber strips can be pre-buried for water stopping according to the engineering water stopping requirement, and the grouting method can also be used to realize the water stopping function of the tenon joint.

[0008] (4) The board pile concrete uses C60 high-strength high-performance concrete design, which meets the strength requirement and improves the durability of the concrete.

[0009] Compared with ordinary concrete flat plate piles, the U-shaped board pile has the advantages of large soil retaining cross-section, good stress performance, high cost performance, and beautiful pile formation.

[0010] The existing technology mostly uses hammering method pile sinking construction process, that is, a special piling ship is used to drive the U-shaped board pile into the water by diesel hammer.

[0011] The following problems are prone to occur during construction:

[0012] (1) Because it is water construction, the ship is easily shaken by wind and waves during construction, which leads to uneven stress on the pile top and damage, and in severe cases, the pile top will burst, causing quality problems.

[0013] (2) The verticality of the sheet pile and the joint between the sheet piles do not meet the requirements, and the linear shape of the sheet pile wall is not straight and beautiful. Practical new type content

[0014] The technical problem solved by the utility model is to provide a water sheet pile construction guiding and positioning device, to ensure water pile sinking construction quality, to meet the requirements of joint, verticality and other indexes, to make the construction linear shape straight, and to avoid damage to the sheet pile head.

[0015] To solve the above technical problem, the utility model adopts the technical scheme that:

[0016] A water sheet pile construction guiding and positioning device, comprising a guiding frame, a positioning pile being detachably installed at one end of the guiding frame, the positioning pile being inserted into water and fixed, and the other end of the guiding frame being placed on a sheet pile that has been constructed;

[0017] A guiding groove and a sheet pile clamp are arranged on the guiding frame, the guiding groove limiting the sheet pile forward and backward during sheet pile sinking, and the sheet pile clamp clamping and limiting one side of the sheet pile.

[0018] The guiding frame comprises longitudinal connecting beams, the longitudinal connecting beams being arranged at intervals left and right and forming the guiding groove, vertical beams being fixed at one end of the two longitudinal connecting beams, and the two vertical beams being connected through a head connecting mechanism; the other end of the two longitudinal connecting beams being connected through a tail connecting mechanism.

[0019] The longitudinal connecting beams and the vertical beams are made of H-shaped steel, and a walking groove is formed on the upper part of the longitudinal connecting beams.

[0020] The two vertical beams and the head connecting mechanism are connected and fixed through bolts; the other end of the two longitudinal connecting beams and the tail connecting mechanism are connected and fixed through bolts; and the bolt connection is adjusted in width of the guiding groove through increasing or decreasing of the gaskets.

[0021] The bottom of the head connecting mechanism is in contact with the sheet pile, and a rubber gasket is arranged on the contact surface.

[0022] The tail connecting mechanism is provided with a vertical through hole, the positioning pile is inserted into the vertical through hole and fixed through transverse insertion of a limiting rod.

[0023] A hanging plate is arranged at the top end of the positioning pile, a sharp end is arranged at the bottom end of the positioning pile, a plurality of groups of insertion holes are arranged at intervals on the positioning pile between the sharp end and the hanging plate, and the axis of the insertion hole is perpendicular to the tangent line of the sharp end.

[0024] The sheet pile clamp comprises a flat plate, a moving wheel being installed on the lower end of the flat plate through a supporting leg, the moving wheel being arranged in the walking groove of the longitudinal connecting beam, a hanging ring being arranged on the upper end of the flat plate left and right, the hanging ring being connected with the chain of a hand chain block, the hand chain block being installed on the side close to the vertical beam, a guide roller being installed on the edge of the flat plate close to the hand chain block, and the guide roller clamping and guiding the side wall of the sheet pile.

[0025] The tail of the guide frame is provided with a transverse support rod, the transverse support rod comprises a sleeve fixed horizontally on the guide frame, and a crossbar is inserted into the sleeve and extends in and out relative to the sleeve; a plurality of groups of circular holes are spaced apart in the axial direction on the sleeve and the crossbar, and a fixing rod is inserted through the circular holes of the sleeve and the crossbar to limit the extension and retraction of the crossbar.

[0026] When the width of the guide groove is greater than the thickness of the sheet pile by 3cm-5cm, the longitudinal connecting beam is provided with a clamping embedding mechanism, and the embedding mechanism is located in the gap between the sheet pile and the longitudinal connecting beam.

[0027] The water sheet pile construction guiding and positioning device has the following technical effects compared with the comparative file 1 (CN202410989730):

[0028] 1) the head connecting mechanism between the two vertical beams is connected and fixed through bolts; the tail connecting mechanism at the other end of the two longitudinal connecting beams is connected and fixed through bolts; and the width of the guide groove is adjusted through the increase or decrease of the gaskets at the bolt connection positions.

[0029] 2) the tail connecting mechanism is provided with a vertical through hole, the positioning pile is inserted into the vertical through hole and fixed transversely through the limiting rod; the positioning pile is provided with a hanging plate at the top end and a sharp end at the bottom end, a plurality of groups of insertion holes are arranged on the positioning pile between the sharp end and the hanging plate, and the axis of the insertion hole is perpendicular to the tangent line of the sharp end.

[0030] 3) the longitudinal connecting beam and the vertical beam are made of H-shaped steel, and a walking groove is formed in the upper part of the longitudinal connecting beam; the moving wheel is installed on the lower end of the flat plate through the supporting leg and is arranged in the walking groove of the longitudinal connecting beam.

[0031] 4), the tail of the guide frame is provided with a transverse support rod, the transverse support rod comprises a sleeve, the sleeve is horizontally fixed on the guide frame, a cross bar is inserted into the sleeve and extends in and out relative to the sleeve; a plurality of groups of circular holes are spaced apart in the axial direction on the sleeve and the cross bar, and a fixing rod is inserted through the circular holes of the sleeve and the cross bar to limit the extension and retraction of the cross bar. Advantage: the transverse support rod is used to control the distance between the guide frame and the revetment. The advantage of maintaining a certain interval is that in the revetment reconstruction project, there is generally a protruding bottom plate under the original revetment, and the sheet pile needs to be constructed at a certain distance outside the bottom plate. The function of the transverse support rod is to unify the distance between the sheet pile and the original revetment, and after the length of the transverse support rod is set, when the guide frame is moved to the next position, the distance between the sheet pile and the original revetment is basically consistent with that of the previous section. At the same time, the transverse support rod is one of the conditions for ensuring the verticality of the sheet pile body: the positioning pile is adjusted to be vertical through the transverse support rod.

[0032] 5), when the width of the guide groove is greater than the thickness of the sheet pile by 3cm~5cm, a clamping and embedding mechanism is arranged on the longitudinal connecting beam, and the clamping and embedding mechanism is arranged in the gap between the sheet pile and the longitudinal connecting beam. Since there may be errors in the thickness of the sheet pile during the processing of the prestressed sheet pile, in order to avoid the sheet pile being stuck or receiving bumps in the guide groove when sinking, it is recommended that the width of the guide groove be 3~5cm wider than the thickness of the sheet pile, so that the sheet pile can quickly enter the guide groove when sinking. In addition, the clamping and embedding mechanism 7 is inserted into the flange of the longitudinal connecting beam 1.1 on the left and right of the guide groove 4, the clamping and embedding mechanism 7 is embedded in the gap between the sheet pile and the longitudinal connecting beam 1.1, the locking of the next sheet pile and the previous sheet pile is engaged, and deviation during pile sinking is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0033] The utility model will be further described in connection with the drawings and embodiments:

[0034] Figure 1 It is the whole structure schematic diagram of the utility model.

[0035] Figure 2 It is the local structure schematic diagram of the guide frame end of the utility model.

[0036] Figure 3 It is the local structure schematic diagram of the guide frame end tail of the utility model.

[0037] Figure 4 It is the top view of the working state of the utility model.

[0038] Figure 5 It is the front view of the working state of the utility model.

[0039] Figure 6 It is the structure schematic diagram of the positioning pile in the utility model.

[0040] Figure 7It is the structure schematic view of the plate pile clamp in the utility model.

[0041] Figure 8 It is the structure schematic view of the horizontal support rod in the utility model.

[0042] Figure 9 It is the structure schematic view of the embedding mechanism in the utility model.

[0043] Figure 10 It is the left view of the embedding mechanism in the utility model.

[0044] Figure 11 It is the local working state schematic view of the utility model.

[0045] Figure 12 It is the connection schematic view of the longitudinal connecting beam and the vertical beam in the utility model.

[0046] In the drawing: guide frame 1, positioning pile 2, plate pile 3, guide groove 4, plate pile clamp 5, horizontal support rod 6, embedding mechanism 7, hand-operated hoist 8, chain 9, revetment 10, longitudinal connecting beam 1.1, vertical beam 1.2, head connecting mechanism 1.3, tail connecting mechanism 1.4, limiting rod 2.1, flat plate 5.1, supporting leg 5.2, moving wheel 5.3, guide roller 5.4, lifting ring 5.5, sleeve 6.1, horizontal rod 6.2, round hole 6.3, fixed rod 6.4. DETAILED DESCRIPTION

[0047] As shown in Figure 1 , a water plate pile construction guiding and positioning device, comprising a guide frame 1, one end of the guide frame 1 is detachably provided with a positioning pile 2, the positioning pile 2 is inserted into water for fixation, so that the one end of the guide frame 1 is positioned and fixed; the other end of the guide frame 1 is rested on a plate pile 3, the plate pile 3 is the first plate pile 3 after initial sinking or a certain plate pile 3 after subsequent sinking. Thus the positioning and fixation of the other end of the guide frame 1 can be realized. A guide groove 4 is formed between the guide frames 1, the width of the guide groove 4 is consistent with the thickness of the plate pile 3, the plate pile 3 enters the guide groove 4 when sinking, and the plate pile 3 is positioned through the guide groove 4. A plate pile clamp 5 is arranged on the guide frame 1, the plate pile clamp 5 limits and guides one side of the plate pile 3 during the sinking process of the plate pile 3, so that the following plate pile 3 abuts against the preceding plate pile 3, the plate joint is prevented from being too large, and the perpendicularity of the plate pile 3 is ensured. The plate pile 3 is a prestressed concrete U-shaped plate pile.

[0048] As shown in Figures 2-3 , the guide frame 1 comprises a longitudinal connecting beam 1.1, the longitudinal connecting beams 1.1 are arranged in two groups and form the guide groove 4. The vertical beam 1.2 is fixed at the head of one end of the two longitudinal connecting beams 1.1, and the two vertical beams 1.2 are connected through a head connecting mechanism 1.3. The tail of one end of the two longitudinal connecting beams 1.1 is connected through a tail connecting mechanism 1.4.

[0049] Two longitudinal connecting beams 1.1 are processed by two long H-shaped steels, and two vertical beams 1.2 are processed by two short H-shaped steels. The cross sections of the longitudinal connecting beams 1.1 and the vertical beams 1.2 are the same. The short H-shaped steel is vertically welded at one end of the long H-shaped steel, so that the webs and flanges of the short H-shaped steel and the long H-shaped steel are vertical respectively.

[0050] The cross section size of the longitudinal connecting beams 1.1 and the vertical beams 1.2 is 40cm*40cm, the wall thickness is 2mm, the length of the long H-shaped steel is 10.5m, and the length of the short H-shaped steel is 1m.

[0051] Preferably, the head connecting mechanism 1.3 is processed by an I-shaped steel, the cross section size is 46cm*40cm, the wall thickness is 2mm, and the height is 75cm. Two or three groups of bolt holes are arranged on the vertical beam 1.2 in the vertical direction, and the head connecting mechanism 1.3 is connected with the vertical beam 1.2 through bolts on the left and right sides. The head connecting mechanism 1.3 can connect the heads of the two longitudinal connecting beams 1.1 into a whole on one hand, and the guide frame 1 can be placed on the sheet pile 3 through the head connecting mechanism 1.3, so that the end of the guide frame 1 is supported by the sheet pile 3.

[0052] In addition, according to different thicknesses of the sheet pile, the width of the guide groove 4 can be adjusted by adding a pad at the bolt connection between the vertical beam 1.2 and the head connecting mechanism 1.3, so as to facilitate the lowering and fixing of the sheet pile 3.

[0053] In addition, a rubber pad with a thickness of about 0.5-1cm is installed at the bottom of the head connecting mechanism 1.3, which is used to protect the pile head of the sheet pile 3.

[0054] The connecting mode of the tail connecting mechanism 1.4 is the same as that of the head connecting mechanism 1.3, and the tail connecting mechanism 1.4 is detachably connected with the two longitudinal connecting beams 1.1 through bolts. The width of the guide groove 4 can also be adjusted by adding a pad at the connection.

[0055] As shown in Figure 3 , the height of the tail connecting mechanism 1.4 is consistent with the height of the longitudinal connecting beam 1.1, and the cross section is a back-shaped structure for positioning the pile 2 to pass through. The cross section size of the tail connecting mechanism 1.4 is 45cm*45cm for the outer ring and 30.5cm*30.5cm for the inner ring.

[0056] As shown in Figure 3 , after the positioning pile 2 is inserted into the tail connecting mechanism 1.4, the limiting rod 2.1 passes through the insertion holes on the longitudinal connecting beam 1.1, the tail connecting mechanism 1.4 and the positioning pile 2, so that the height of the positioning pile 2 relative to the longitudinal connecting beam 1.1 is constant.

[0057] As shown in Figure 6As shown, the positioning pile 2 is processed by a hollow square steel tube, with a cross-sectional size of 30cm*30cm and a length of 6m. The positioning pile 2 is provided with opposite insertion holes on both sides for inserting a limiting rod 2.1 (steel rod) for fixing.

[0058] A lifting plate (annular steel plate) is arranged at the top of the positioning pile 2, which is used for lifting. The bottom of the positioning pile 2 is triangular, and the connecting line of the pile tip line and the main circular hole of the positioning pile 2 is perpendicular. Advantage: The device is applied to a position close to a river bank, and the positioning pile needs to be inserted into the soil body to a certain depth, and may encounter stones or other obstacles near the bank, so the pile tip line is designed to be parallel to the bank, and the position of the circular hole is designed to pass through two guide frames, on the one hand, to form a stable whole with the positioning pile, the guide frame and the tail connecting mechanism, and on the other hand, if it is rotated by 90°, it will occupy part of the space of the guide groove, affecting the construction of the sheet pile in the guide groove. Therefore, the connecting line of the pile tip line and the main circular hole of the positioning pile 2 is perpendicular.

[0059] As shown in Figure 7 , the sheet pile clamp 5 includes a flat plate 5.1, and the lower end of the flat plate 5.1 is installed with moving wheels 5.3 through supporting legs 5.2 on the left and right, and the moving wheels 5.3 on the left and right can move along the walking grooves (grooves formed by the H-shaped steel itself) of the longitudinal connecting beams 1.1 on both sides.

[0060] A rotatable guide roller 5.4 is installed on one side edge of the upper end of the flat plate 5.1, which is used for clamping the prestressed concrete sheet pile. During the sinking process of the sheet pile 3, the guide roller 5.4 will rotate correspondingly to reduce the friction between the guide roller 5.4 and the sheet pile 3.

[0061] Lifting rings 5.5 are arranged at appropriate positions on the left and right sides of the upper end of the flat plate 5.1. The lifting rings 5.5 are used to connect the chain 9 at one end of the hand-operated hoist 8.

[0062] If there is no sheet pile clamp 5, the gap between the sheet piles cannot be controlled, and during the pile sinking process, the sheet piles may tilt outwardly or be misaligned with the previous pile, resulting in a too large gap between the pile tips and causing soil and water loss.

[0063] As shown in Figure 8 , preferably, a transverse supporting rod 6 is fixed to the bank side of the tail of the guide frame 1, which is used to control the distance between the guide frame and the bank.

[0064] The transverse support rod 6 comprises a sleeve 6.1 fixed horizontally on the longitudinal connecting beam 1.1, and a cross rod 6.2 inserted into the sleeve 6.1 and capable of extending and retracting relative to the sleeve 6.1. A plurality of groups of circular holes 6.3 are formed in the axial direction on the sleeve 6.1 and the cross rod 6.2, and a fixing rod 6.4 is inserted through the circular holes 6.3 of the sleeve 6.1 and the cross rod 6.2 to adjust the length of the transverse support rod 6, and the other end of the cross rod 6.2 is abutted against the revetment. Thus, the device is kept at a certain distance from the revetment. The advantage of keeping a certain distance is that in the revetment reconstruction project, there is generally a protruding bottom plate under the original revetment, and the sheet pile needs to be constructed at a certain distance outside the bottom plate. The function of the transverse support rod is to unify the distance between the sheet pile and the original revetment, and after the length of the transverse support rod is set, when the moving guide frame is moved to the next position, the distance between the sheet pile and the original revetment is basically consistent with that of the previous section.

[0065] As shown in Figures 4-5 additionally, since there may be errors in the thickness of the prestressed sheet pile in the processing process, in order to avoid the sheet pile being stuck or bumped when sinking, it is recommended that the width of the guide groove be 3-5 cm wider than the thickness of the sheet pile, so that the sheet pile 3 can quickly enter the guide groove 4 when sinking. In addition, the embedded fixing mechanism 7 is inserted into the flange of the longitudinal connecting beam 1.1 on the left and right of the guide groove 4, which is embedded in the gap between the sheet pile and the longitudinal connecting beam 1.1, so that the lock of the next sheet pile engages with that of the previous sheet pile, avoiding deviation during pile sinking.

[0066] A water-based sheet pile guiding and positioning construction method, comprising the following steps:

[0067] Step 1: clearing obstacles in front of the old revetment and exploring.

[0068] Step 1.1: Before construction, the geological conditions in the sheet pile sinking range should be explored, and obstacles such as boulders and old revetment bottom plates should be removed.

[0069] Step 1.2: The front of the old revetment is dredged to meet the water depth requirement when the piling ship is berthed.

[0070] Step 1.3: The construction site should be checked for buildings with high risk.

[0071] Step 2: Positioning the piling ship. The long side of the piling ship is parallel to the construction route, and a steel pile is used for positioning to reduce the impact on the waterway.

[0072] Step 3: Assembling the guide frame.

[0073] Step 3.1: The guide frame 1 is transported to the construction site and assembled by the hoisting equipment of the piling ship.

[0074] Step 3.2: When assembling, increase the width of the guide groove 4 slightly larger than the thickness of the sheet pile 3 by adding a pad at the connection between the head connecting mechanism 1.3 and the tail connecting mechanism 1.4.

[0075] Step 3.3: According to the water depth on site, set the fixed height of the positioning pile 2, insert the positioning pile 2 into the tail of the guide frame 1 and fix it with the limiting rod 2.1.

[0076] Step 4: Construction of the first sheet pile.

[0077] According to the measured pile position, the first sheet pile 3 is set as the positioning pile of the guide frame 1, with the top elevation of the pile exposed about 1m above the water surface, used for placing the head connecting mechanism 1.3 of the guide frame 1.

[0078] Step 5: Setting up the guide frame.

[0079] Step 5.1: Through the lifting rings at the head of the guide frame 1 and the top of the positioning pile 2, use the lifting equipment of the piling ship to lift the guide frame 1 into the water, first place the head of the guide frame 1 on the already driven sheet pile.

[0080] Step 5.2: Loosen the lifting ring at the head of the guide frame 1, lift the positioning pile 2, and after adjusting the distance between the guide frame 1 and the revetment 10, place it in the water.

[0081] Step 5.3: After the positioning pile 2 is inserted into the underwater mud surface, ensure that the longitudinal connecting beam 1.1 is above the water surface, extend the transverse support rod 6 to the top of the revetment 10, fix the length as a control parameter for subsequent construction.

[0082] Step 5.4: Install the sheet pile clamp 5 and the hand-operated hoist 8 on the guide frame 1.

[0083] Step Six: Pile lifting and sinking.

[0084] Step 6.1: Lift the sheet pile 3 into the guide frame 1, and use the sheet pile clamp 5 and the embedding mechanism 7 to limit it. The specific operation process of the sheet pile clamp 5 and the sheet pile embedding mechanism 7 is as follows: ① Lift the sheet pile 3 into the guide frame 1, slowly lower it to a certain height after approaching the first sheet pile, without entering the soil layer, tighten the chain 9 through the hand-operated hoist 8, and make the sheet pile 3 and the first sheet pile 3 fit into the concave-convex mortise and groove, tightly. ② Insert the sheet pile embedding mechanism 7 into the gap between the sheet pile and the guide groove, and if there are gaps on both sides, set them on both sides. Limit the sheet pile in front and back to avoid the concave-convex mortise and groove from disengaging during the lowering process.

[0085] Make the sheet pile 3 and the first sheet pile 3 fit as much as possible, and slowly lower the sheet pile 3 into the water until it no longer sinks. Release the lifting wire rope when the sheet pile is close to the water surface.

[0086] Step 6.2: Drive the sheet pile 3 to the design elevation. If the design elevation is below the water level, the pile driver should be used to drive the pile again.

[0087] Step 6.3: Release the sheet pile clamp 5 and the setting mechanism 7, and repeat step 6.1- step 6.2 until the sheet pile 3 cannot be inserted into the guide frame 1. The last pile in the guide frame 1 is not driven to the design elevation and is exposed above the water level with a certain height reserved as a positioning pile after the guide frame is moved.

[0088] Step 7: Repeat step 5-step 6 to move the guide frame 1 to the side of the sheet pile 3 that has been completed, and reserve the last sheet pile 3 as a positioning pile after the guide frame is moved; and install the guide frame 1 and perform the sheet pile operation again. Repeat until the sheet pile construction is completed.

Claims

1. A guiding and positioning device for sheet pile construction on water, characterized in that: Includes a guide frame (1), one end of which is detachably fitted with a positioning pile (2), which is inserted into the water for fixation, and the other end of the guide frame (1) rests on the completed sheet pile (3); The guide frame (1) is provided with a guide groove (4) and a sheet pile clamp (5). During the sinking process of the sheet pile (3), the guide groove (4) limits the front and rear movement of the sheet pile (3), and the sheet pile clamp (5) clamps and limits one side of the sheet pile (3). The guide frame (1) includes longitudinal connecting beams (1.1), which are arranged at intervals on the left and right to form guide grooves (4). One end of each of the two longitudinal connecting beams (1.1) is fixed with a vertical beam (1.2), and the two vertical beams (1.2) are connected by a head connecting mechanism (1.3). The other end of the two longitudinal connecting beams (1.1) is connected by a tail connecting mechanism (1.4).

2. The underwater sheet pile construction guiding and positioning device according to claim 1, characterized in that: The longitudinal connecting beam (1.1) and the vertical beam (1.2) are made of H-beams, and a walking groove is formed on the upper part of the longitudinal connecting beam (1.1).

3. The underwater sheet pile construction guiding and positioning device according to claim 1, characterized in that: The two vertical beams (1.2) are connected and fixed to the head connection mechanism (1.3) by bolts; the other end of the two longitudinal connecting beams (1.1) is connected and fixed to the tail connection mechanism (1.4) by bolts; and the width of the guide groove (4) is adjusted by adding or removing pads at the bolt connection.

4. The underwater sheet pile construction guiding and positioning device according to claim 1, characterized in that: The bottom of the head connection mechanism (1.3) contacts the sheet pile (3) and a rubber pad is installed on the contact surface.

5. The underwater sheet pile construction guiding and positioning device according to claim 1, characterized in that: The tail connection mechanism (1.4) is provided with a vertical through hole, and the positioning pile (2) is inserted into the vertical through hole and fixed by the horizontal insertion of the limiting rod (2.1).

6. The underwater sheet pile construction guiding and positioning device according to claim 5, characterized in that: The top of the positioning pile (2) is provided with a hanging plate, and the bottom of the positioning pile (2) is provided with a pointed tip. Multiple sets of insertion holes are provided on the positioning pile (2) between the pointed tip and the hanging plate. The axis of the insertion hole is perpendicular to the tangent of the pointed tip.

7. A guiding and positioning device for sheet pile construction on water as described in claim 2, characterized in that: The sheet pile clamp (5) includes a plate (5.1), with a movable wheel (5.3) installed at the lower end of the plate (5.1) via a support leg (5.2). The movable wheel (5.3) is placed in the travel groove of the longitudinal connecting beam (1.1). The upper end of the plate (5.1) is provided with lifting rings (5.5) on the left and right sides. The lifting rings (5.5) are connected to the chain (9) of the hand chain hoist (8). The hand chain hoist (8) is installed on the side close to the vertical beam (1.2). A guide roller (5.4) is installed on the edge of the plate (5.1) near the hand chain hoist (8). The guide roller (5.4) clamps and guides the side wall of the sheet pile (3).

8. The underwater sheet pile construction guiding and positioning device according to claim 1, characterized in that: The guide frame (1) is provided with a transverse support rod (6) at its tail. The transverse support rod (6) includes a sleeve (6.1). The sleeve (6.1) is horizontally fixed on the guide frame (1). The crossbar (6.2) is inserted into the sleeve (6.1) and extends in and out relative to the sleeve (6.1). Multiple sets of round holes (6.3) are spaced apart along the axial direction on the sleeve (6.1) and the crossbar (6.2). The fixing rod (6.4) passes through the round holes (6.3) of the sleeve (6.1) and the crossbar (6.2) to limit the extension of the crossbar (6.2).

9. A guiding and positioning device for sheet pile construction on water as described in claim 1, characterized in that: When the width of the guide groove (4) is 3cm~5cm greater than the thickness of the sheet pile (3), the embedding mechanism (7) is snapped onto the longitudinal connecting beam (1.1), and the embedding mechanism (7) is located in the gap between the sheet pile (3) and the longitudinal connecting beam (1.1).

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