A steel sheet pile and steel support supporting system and method in a silt soil

Abstract

The application provides a steel sheet pile steel support supporting system and method in silt soil, and relates to the field of pipe gallery construction support, and comprises: double-row steel sheet piles, two groups of double-row steel sheet piles are oppositely arranged at intervals, each group of double-row steel sheet piles comprises two rows of steel sheet pile monomers, and a sheet pile inter-support is connected between the two rows of steel sheet pile monomers in the same group; a steel support is located between the two groups of double-row steel sheet piles and connects the two groups of double-row steel sheet piles, at least one end of the steel support is connected to the double-row steel sheet piles through a movable support shoe, an output end of the movable support shoe can elastically stretch and contract along the axial direction of the steel support, and the output end can abut against the steel support; in view of the problems that the current supporting system is prone to deviation and the steel support falls off in silt soil, the stability of the supporting structure is ensured by adopting the double-row steel sheet piles combined with the sheet pile inter-support, the steel support that can adapt to the deviation of the steel sheet pile is combined to form the supporting system, and the supporting system can be recycled after the trench construction is completed, so that the construction cost is reduced.

Description

Technical Field

[0001] This invention relates to the field of pipe gallery construction support, specifically to a steel sheet pile steel support system and method for silty soil. Background Technology

[0002] When excavating trenches for pipe gallery construction in silty soil, sheet piles combined with prestressed steel supports are commonly used. In practice, as the excavation depth increases, the lower sheet piles shift into the trench. However, due to the low strength of the silty soil, the upper part of the sheet piles experiences excessive displacement under the prestressed steel supports, often resulting in the upper steel supports detaching from the trench and causing safety accidents on site.

[0003] To reduce sheet pile displacement, existing technologies use jet grouting or cast-in-place piles on the outside of the sheet piles. While this method enhances the stability of the retaining system, it has a high construction cost. Jet grouting or cast-in-place piles are buried underground and are difficult to recover, leading to a waste of resources and materials. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a steel sheet pile and steel support system and method for silty soil. The system uses double-row steel sheet piles combined with inter-pile bracing to ensure the stability of the support structure. It also incorporates steel supports that adapt to the offset of the steel sheet piles to form a support system. Furthermore, the system can be recycled after trench construction, thus reducing construction costs.

[0005] The first objective of this invention is to provide a steel sheet pile steel bracing support system for silty soil, which adopts the following scheme:

[0006] include:

[0007] Double-row sheet piles, two sets of double-row sheet piles are arranged at intervals relative to each other, each set of double-row sheet piles includes two rows of sheet pile units, and the two rows of sheet pile units in the same set are connected by sheet pile bracing.

[0008] A steel support is located between and connects two sets of double-row steel sheet piles. At least one end of the steel support is connected to the double-row steel sheet piles through a movable support shoe. The output end of the movable support shoe can elastically expand and contract along the axial direction of the steel support while maintaining contact with the steel support.

[0009] Furthermore, one end of the steel support abuts against a set of double-row steel sheet piles, and the other end abuts against another set of double-row steel sheet piles, maintaining the distance between the two sets of double-row steel sheet piles.

[0010] Furthermore, along the excavation depth direction of the trench between the two rows of sheet piles, multiple steel supports between the two sets of double-row sheet piles are arranged sequentially at intervals, and multiple sheet pile supports between individual sheet piles in the same set are arranged sequentially at intervals.

[0011] Furthermore, the steel supports at the first installation position near the ground and the sheet pile bracing at the first installation position near the ground are at the same height, and the spacing between adjacent steel supports is greater than the spacing between adjacent sheet pile bracing.

[0012] Furthermore, vertical sliding tracks are set between the two rows of sheet pile units in the same group. One end of the sheet pile brace slides into the vertical sliding track on one row of sheet pile units, and the other end slides into the vertical sliding track on the other row of sheet pile units in the same group.

[0013] Furthermore, the vertical slide rail is provided with a U-shaped groove, and the end of the sheet pile interbracing is provided with a convex slider. The convex slider is embedded in the U-shaped groove and moves along the U-shaped slide rail so that the two rows of steel sheet piles in the same group can jointly resist tension or compression.

[0014] Furthermore, the assembly includes a rebound component, a movable outer shell, and a movable bracket. The movable outer shell is mounted on the sheet pile unit, and the movable bracket connects the sheet pile unit and the movable outer shell. The movable outer shell has a cavity, and the rebound component is installed in the cavity. The output end of the rebound component abuts against the steel support.

[0015] Furthermore, the rebound assembly includes a spring, a pin, a wedge, and a support structure rod. One end of the spring abuts against the inner wall of the movable housing, and the other end abuts against the wedge. The support structure rod is connected to the wedge and slides back and forth with the wedge relative to the movable housing. The support structure rod serves as the output end of the rebound assembly and abuts against the steel support. The pin is installed on the movable housing.

[0016] A second objective of this invention is to provide a construction method for a steel sheet pile steel bracing system in silty soil as described in the first objective, comprising:

[0017] Construct two rows of sheet pile units in the same group in sequence, clear the soil layer between the two rows of sheet pile units in the same group, and install sheet pile bracing to form a double row of sheet piles.

[0018] Excavate trenches and install steel supports between the two sets of double-row steel sheet piles;

[0019] After the steel support is installed, a movable support shoe is installed at the movable end of the steel support. The movable support shoe is fixed to the steel sheet pile unit, and the output end of the movable support shoe abuts against the steel support to apply prestress to the steel support.

[0020] Furthermore, the end of the steel support furthest from the movable end is the fixed end, which is installed on a set of double-row steel sheet piles furthest from the movable end via a fixed support shoe.

[0021] Compared with the prior art, the advantages and positive effects of this invention are:

[0022] (1) In view of the current problem that the support system is prone to displacement and steel support fall off in silty soil, double-row steel sheet piles combined with inter-sheet pile bracing are adopted to ensure the stability of the support structure. Combined with steel supports that adapt to the displacement of steel sheet piles, a support system is formed. It can also be recycled after the trench construction is completed, reducing construction costs.

[0023] (2) By connecting the individual steel sheet piles of the same group into a whole structure through the inter-sheet bracing, especially the upper part of the double-row steel sheet piles is connected and stabilized to jointly resist the problem of excessive displacement caused by the deformation of the upper silty soil, thereby enhancing the support strength of the double-row steel sheet piles and effectively reducing the negative impact on the trench caused by the excessive deformation of the upper silty soil.

[0024] (3) When the sheet pile bracing connects two rows of sheet piles in the same group so that they are subjected to the same force, the sheet pile bracing needs to bear the pressure. When the sheet pile on the side far away from the trench is displaced, the sheet pile bracing pulls the other sheet pile in the same group of double-row sheet piles, thereby jointly resisting the excessive displacement of the double-row sheet piles.

[0025] (4) When the double-row steel sheet piles at the steel support contact position are deviated, a gap appears between the steel support and the double-row steel sheet piles, causing the steel support to lose prestress on the double-row steel sheet piles; at this time, the spring of the rebound component can push the wedge block and the support structure rod to slide, so that the support structure rod moves and maintains contact with the steel support, so that the prestress of the steel support on the single steel sheet pile can be effectively transferred, and the prestress loss is prevented. Attached Figure Description

[0026] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0027] Figure 1 This is a schematic diagram of a single steel sheet pile in Embodiments 1 and 2 of the present invention.

[0028] Figure 2 This is a schematic diagram showing the distribution of the steel sheet pile steel support system in silty soil in Embodiments 1 and 2 of the present invention.

[0029] Figure 3 This is a schematic diagram showing the distribution of sheet pile bracing and steel bracing in silty soil in Embodiments 1 and 2 of the present invention.

[0030] Figure 4 This is a schematic diagram showing the distribution of vertical sliding tracks on individual steel sheet piles in Embodiments 1 and 2 of the present invention.

[0031] Figure 5 This is a schematic diagram of the vertical sliding track on a single sheet pile in Embodiments 1 and 2 of the present invention.

[0032] Figure 6 This is a schematic diagram of the movable support boot in Embodiments 1 and 2 of the present invention.

[0033] Figure 7 This is a schematic diagram of the fixed support boot in Embodiments 1 and 2 of the present invention.

[0034] Figure 8 This is a schematic diagram of the springback assembly in Embodiments 1 and 2 of the present invention.

[0035] Figure 9 This is a schematic diagram showing the connection between the pin and the movable housing in Embodiments 1 and 2 of the present invention.

[0036] Among them, 1. Spacer bar; 2. Sheet pile unit; 3. Steel support; 4. Inter-sheet pile bracing; 5. Ground; 6. Second steel support; 7. Double row of sheet piles; 8. Vertical slide rail; 9. Movable shell; 10. Rebound assembly; 11. Movable bracket; 12. Fixed shell; 13. Fixed bracket; 14. Pin; 15. Spring; 16. Wedge; 17. Support structure rod. Detailed Implementation

[0037] Example 1

[0038] In a typical embodiment of the present invention, such as Figures 1-9 As shown, a steel sheet pile steel support system for silty soil is presented.

[0039] When sheet piles are used to support excavated trenches, the sheet piles are subjected to uneven stress, which can lead to the sheet piles shifting and the steel supports falling off. Installing jet grouting piles or cast-in-place piles outside the sheet piles can increase the stability of the retaining system, but the construction process is more complicated, which increases the additional construction cost, and jet grouting piles or cast-in-place piles are not easy to recycle.

[0040] Based on this, this embodiment provides a steel sheet pile and steel support 3 support system in silty soil. It adopts double-row steel sheet piles 7 combined with sheet pile bracing 4 to ensure the stability of the support structure. Together with the steel support 3 that adapts to the offset of the steel sheet piles, it forms a support system. It can also be recycled after the trench construction is completed, reducing construction costs.

[0041] The following section provides a detailed description of the steel sheet pile steel support system in silty soil, with reference to the accompanying drawings.

[0042] See Figure 1The sheet pile and steel support system in silty soil includes double-row sheet piles 7 and steel supports 3. Two sets of double-row sheet piles 7 are arranged at intervals, and the steel supports 3 are located between the two sets of double-row sheet piles 7. One end of the steel supports 3 abuts against one set of double-row sheet piles 7, and the other end abuts against the other set of double-row sheet piles 7, maintaining the distance between the two sets of double-row sheet piles 7. The double-row sheet piles 7 include two rows of sheet pile units 2 arranged at intervals. A sheet pile interbracing 4 is set between the two rows of sheet pile units 2. One end of the sheet pile interbracing 4 abuts against one row of sheet pile units 2, and the other end abuts against the other row of sheet pile units 2 in the same group, maintaining the distance between the two rows of sheet pile units 2.

[0043] Optionally, the spacing between the two rows of sheet pile units 2 in the same group of double-row sheet piles 7 can be set to 1m. In order to ensure the support coordination of the sheet pile units 2, a spacer bar 1 is set on the ground surface to guide the sheet piles to be positioned and inserted along the spacer bar 1, so that the sheet pile units 2 in the same group are arranged in parallel and inserted vertically.

[0044] A trench is excavated between two sets of double-row steel sheet piles 7. Multiple steel supports 3 are set between the two sets of double-row steel sheet piles 7. Multiple sheet pile interbraces 4 are set between the individual sheet piles 2 of the same set. Along the excavation depth direction, multiple steel supports 3 are arranged at intervals in sequence, and multiple sheet pile interbraces 4 are arranged at intervals in sequence.

[0045] like Figure 2 As shown, the sheet pile bracing 4 and steel support 3 located at the top are arranged close to the ground 5, that is, the first steel support 3 and the first sheet pile bracing 4 near the top surface of the excavation position are set close to the ground 5, and the first steel support 3 and the first sheet pile bracing 4 have the same height.

[0046] like Figure 3 As shown, along the trench excavation depth direction, the spacing between adjacent steel supports 3 is greater than the spacing between adjacent sheet pile supports 4; in this embodiment, the spacing between adjacent steel supports 3 is S, and the spacing between adjacent sheet pile supports 4 is 0.5S, making the distribution density of sheet pile supports 4 greater than the distribution density of steel supports 3. Figure 3 As shown, the positions of the third sheet pile interbracing 4 and the second steel support 6 correspond to each other.

[0047] The sheet piles 4 connect the individual sheet piles 2 of the same group into a whole structure, especially the upper part of the double-row sheet piles 7, which is connected and stabilized to jointly resist the problem of excessive displacement caused by the deformation of the upper silty soil. This enhances the support strength of the double-row sheet piles 7 and effectively reduces the negative impact on the trench caused by excessive deformation of the upper silty soil.

[0048] When the sheet pile bracing 4 connects two rows of sheet pile units 2 in the same group so that they share the load, the sheet pile bracing 4 needs to bear the pressure. When the sheet pile unit 2 on the side far away from the trench is displaced, the sheet pile bracing 4 pulls the other sheet pile unit 2 in the same group of double-row sheet piles 7, thereby jointly resisting the excessive displacement of the double-row sheet piles 7.

[0049] Based on this, a vertical slideway 8 is set between two rows of sheet pile units 2 in the same group. One end of the sheet pile brace 4 is slidably inserted into the vertical slideway 8 on the sheet pile unit 2, and the other end is slidably inserted into the vertical slideway 8 on another row of sheet pile units 2 in the same group, thus establishing a stable connection between the two rows of sheet pile units 2 in the same group.

[0050] Optionally, the vertical slide 8 is provided with a U-shaped groove, such as... Figure 5 As shown, the end of the sheet pile brace 4 is provided with a protruding slider. The protruding slider is embedded in the U-shaped groove and moves along the U-shaped slide. It can restrict the movement of the protruding slider along the axis perpendicular to the vertical slide 8, prevent the sheet pile brace 4 from coming out of the U-shaped groove, and enable the sheet pile brace 4 to transmit tension or thrust along the axis.

[0051] Multiple vertical sliding tracks 8 are arranged at intervals along the horizontal width of the sheet pile unit 2, and are located at the protruding positions of the sheet pile unit 2, such as... Figure 4 As shown, the vertical sliding tracks 8 on the two rows of sheet pile units 2 in the same group are arranged in a one-to-one correspondence. Optionally, the axial length of the vertical sliding track 8 can be configured to be 1m and the width to be 10cm. In other embodiments, the dimensions of the vertical sliding track 8 can be configured according to requirements.

[0052] In addition, such as Figure 6 As shown, the steel support 3 is installed between two sets of double-row steel sheet piles 7. When the double-row steel sheet piles 7 shift, the steel support 3 will also loosen and shift, causing the prestress applied by the steel support 3 to the double-row steel sheet piles 7 to fail. In order to reduce the safety hazards caused by excessive displacement of the steel support 3, and to reduce prestress loss, support shoes are installed on the double-layer steel sheet piles, and the steel support 3 abuts against the double-layer steel sheet piles through the support shoes.

[0053] In this embodiment, at least one support shoe is a movable support shoe. The output end of the movable support shoe can elastically extend and retract along the axial direction of the steel support 3, while maintaining contact with the steel support 3. The position where the movable support shoe contacts the steel support 3 is the movable end of the steel support 3, such as... Figure 6 As shown, the movable support shoe can both protect the steel support 3 from falling off and prevent prestress loss; when one end of the steel support 3 uses a movable support shoe, the other end can use a fixed support shoe, such as... Figure 7 As shown, the fixed support shoe protects the steel support 3 from falling off. It is understood that movable support shoes can be used at both ends of the steel support 3.

[0054] The fixed support shoe includes a fixed outer shell 12 and a fixed bracket 13. The fixed outer shell 12 is installed on the sheet pile unit 2, and the fixed bracket 13 connects the fixed outer shell 12 and the sheet pile unit 2 to reinforce the installation position of the fixed outer shell 12. The fixed outer shell 12 is provided with a bearing part for connecting the steel support 3. The fixed support shoe establishes the interaction relationship between the steel support 3 and the sheet pile unit 2 and prevents the steel support 3 from falling off the fixed support shoe.

[0055] For active support boots, combined with Figure 6 , Figure 8 and Figure 9 It includes a rebound assembly 10, a movable surgical device 9, and a movable bracket 11. The movable surgical device 9 is mounted on the sheet pile unit 2, and the movable bracket 11 connects the sheet pile unit 2 and the movable surgical device 9, thereby reinforcing the movable surgical device 9. The movable surgical device 9 has a cavity, and the rebound assembly 10 is installed in the cavity. The output end of the rebound assembly 10 abuts against the steel support 3, thereby transmitting the force applied by the steel support 3 to the sheet pile unit 2.

[0056] Specifically, the rebound assembly 10 includes a spring 15, a pin 14, a wedge 16, and a support structure rod 17. One end of the spring 15 abuts against the inner wall of the movable surgical 9, and the other end abuts against the wedge 16. The wedge 16 can slide back and forth relative to the movable surgical 9. The support structure rod 17 is connected to the wedge 16 and slides back and forth relative to the movable surgical 9 with the wedge 16. The support structure rod 17 serves as the output end of the rebound assembly 10 and abuts against the steel support 3. The pin 14 is installed on the movable surgical 9. The pin 14 can constrain the position of the wedge 16 to facilitate the installation of the steel support 3. The pin 14 can also adjust its position to remove the constraint on the wedge 16, so that the wedge 16 and the support structure rod 17 abut against the steel sheet pile unit 2 under the action of the spring 15.

[0057] When the double-row sheet piles 7 at the contact position of the steel support 3 deviate, a gap appears between the steel support 3 and the double-row sheet piles 7, causing the prestress of the steel support 3 to the double-row sheet piles 7 to be lost. At this time, the spring 15 of the rebound assembly 10 can push the wedge block 16 and the support structure rod 17 to slide, so that the support structure rod 17 moves and maintains contact with the steel support 3, so that the prestress of the steel support 3 to the sheet pile unit 2 can be effectively transferred, and the prestress loss is prevented.

[0058] Example 2

[0059] In another typical embodiment of the present invention, such as Figures 1-9 As shown, a construction method for a steel sheet pile steel support 3-support system in silty soil is given.

[0060] include:

[0061] Construct two rows of sheet pile units 2 in the same group in sequence, clear the soil layer between the two rows of sheet pile units 2 in the same group, and install sheet pile bracing 4 to form a double row of sheet piles 7.

[0062] Excavate trenches and install steel supports 3 between the two sets of double-row steel sheet piles 7;

[0063] After the steel support 3 is installed, a movable support shoe is installed at the movable end of the steel support 3. The movable support shoe is fixed to the steel sheet pile unit 2, and the output end of the movable support shoe abuts against the steel support 3 to apply prestress to the steel support 3.

[0064] The end of the steel support 3 furthest from the movable end is the fixed end, which is installed on a set of double-row steel sheet piles 7 furthest from the movable end via a fixed support shoe.

[0065] Specifically, in combination Figures 1-9 The construction method of the steel sheet pile steel bracing 3-support system in silty soil, as described in Example 1, includes:

[0066] (1) The construction position of the sheet pile unit 2 is obtained by setting out the line, and the sheet pile position spacer 1 is installed on the ground surface;

[0067] (2) Install the first row of steel sheet pile units 2 one by one using piling equipment, and then install the second row of steel sheet pile units 2.

[0068] (3) Clear the soil layer between the two rows of sheet pile units 2 to ensure that the sheet pile bracing 4 can slide down to the designated position according to the designed position and height;

[0069] (4) Excavate the first layer of soil in the trench according to the design documents and construction organization design plan. After reaching the design-specified height, install the first layer of steel supports 3 and apply prestress to the steel supports 3;

[0070] (5) After the first layer of steel support 3 is installed, first install the steel support 3 at its fixed end according to... Figure 7 Install the fixed support boot, tighten the connecting bolts, and secure the fixed support boot;

[0071] (6) Further install the movable support shoe of the steel support 3. Before installing the movable support shoe of the steel support 3, first remove the pin 14 in the spring-loaded assembly 10, and then, according to the design documents, use the jack to adjust the prestress of the spring 15 in the spring-loaded assembly 10 to the design requirements through the support structure rod 17, and insert the pin 14.

[0072] (7) At the movable end of the steel support 3, according to Figure 6 and Figure 8The movable support shoe is installed in a certain way, and the fixed bracket 13 is arranged. After the movable support shoe is installed, the upper pin 14 is pulled out. If the steel support 3 is stretched to the outside of the groove, the spring 15 in the rebound assembly 10 pushes the support structure rod 17 to apply prestress to the steel support 3, thereby reducing the prestress loss.

[0073] (8) The second layer of steel support 3 can be carried out normally according to the design documents.

[0074] It effectively ensures the applied prestress and prevents prestress loss. Moreover, the rebound component 10 offsets the displacement of the steel support 3, thereby effectively preventing the safety hazards caused by excessive displacement of the upper steel support 3.

[0075] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A steel sheet pile steel bracing support system for silty soil, characterized in that, include: Double-row sheet piles, two sets of double-row sheet piles are arranged at intervals relative to each other, each set of double-row sheet piles includes two rows of sheet pile units, and the two rows of sheet pile units in the same set are connected by sheet pile bracing. A vertical sliding track is provided between two rows of sheet pile units in the same group. The vertical sliding track has a U-shaped groove. The end of the sheet pile inter-bracing is provided with a convex slider. The convex slider is embedded in the U-shaped groove and moves along the U-shaped track so that the two rows of sheet pile units in the same group can jointly resist tension or compression. A steel support is located between the two groups of double-row sheet piles and connects the two groups of double-row sheet piles. At least one end of the steel support is connected to the double-row sheet piles through a movable support shoe. The output end of the movable support shoe can elastically expand and contract along the axial direction of the steel support and maintain contact with the steel support. The sheet pile bracing connects the same group of sheet piles into a whole structure, especially for stabilizing the upper part of double-row sheet piles, and jointly resisting the problem of excessive displacement caused by deformation of the upper silty soil. The steel supports and the sheet pile bracing are at the same height at the first installation position near the ground, and the spacing between adjacent steel supports is greater than the spacing between adjacent sheet pile bracing. The movable support shoe includes a rebound assembly, a movable outer shell, and a movable bracket. The movable outer shell is installed on the sheet pile unit, and the movable bracket connects the sheet pile unit and the movable outer shell. The movable outer shell has a cavity, and the rebound assembly is installed in the cavity. The output end of the rebound assembly abuts against the steel support. The movable support shoe is fixed to the sheet pile unit, and the output end of the movable support shoe abuts against the steel support, applying prestress to the steel support.

2. The steel sheet pile steel bracing support system in silty soil as described in claim 1, characterized in that, One end of the steel support abuts against a set of double-row steel sheet piles, and the other end abuts against another set of double-row steel sheet piles, maintaining the distance between the two sets of double-row steel sheet piles.

3. The steel sheet pile steel bracing support system in silty soil as described in claim 1 or 2, characterized in that, Along the excavation depth direction of the trench between the two rows of steel sheet piles, multiple steel supports between the two sets of double-row steel sheet piles are arranged in sequence at intervals, and multiple sheet pile supports between individual steel sheet piles in the same set are arranged in sequence at intervals.

4. The steel sheet pile steel bracing support system in silty soil as described in claim 1, characterized in that, One end of the sheet pile brace is slidably inserted into the vertical slide rail on a row of individual sheet piles, and the other end is slidably inserted into the vertical slide rail on another row of individual sheet piles in the same group.

5. The steel sheet pile steel bracing support system in silty soil as described in claim 1, characterized in that, The rebound assembly includes a spring, a pin, a wedge, and a support structure rod. One end of the spring abuts against the inner wall of the movable housing, and the other end abuts against the wedge. The support structure rod is connected to the wedge and slides back and forth with the wedge relative to the movable housing. The support structure rod serves as the output end of the rebound assembly and abuts against a steel support. The pin is installed on the movable housing.

6. A construction method for a steel sheet pile steel bracing support system in silty soil as described in any one of claims 1-5, characterized in that, include: Construct two rows of sheet pile units in the same group in sequence, clear the soil layer between the two rows of sheet pile units in the same group, and install sheet pile bracing to form a double-row sheet pile integral structure. Excavate trenches and install steel supports between the two sets of double-row steel sheet piles; After the steel support is installed, a movable support shoe is installed at the movable end of the steel support. The movable support shoe is fixed to the steel sheet pile unit, and the output end of the movable support shoe abuts against the steel support to apply prestress to the steel support.

7. The construction method of the steel sheet pile steel support system in silty soil as described in claim 6, characterized in that, The end of the steel support furthest from the movable end is the fixed end, which is installed on a set of double-row steel sheet piles furthest from the movable end via a fixed support shoe.

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