Recombinant bamboo board pile structure for ecological control and guidance engineering and construction method thereof

Abstract

The invention discloses a recombined bamboo plate pile structure for ecological control and guide engineering and a construction method thereof.The recombined bamboo plate pile structure comprises a bamboo plate pile, a pile cap and a pile shoe, the bamboo plate pile comprises multiple sections of bamboo pile single bodies of the same structure, and positioning insertion holes are formed in the connecting end faces of the bamboo pile single bodies; the bamboo pile single bodies are connected through wooden pins inserted into the positioning insertion holes; each bamboo pile single body comprises a web plate, a wing plate and an occlusion hook, each occlusion hook comprises a connecting plate and an anti-unhooking plate parallel to the wing plate, and an occlusion groove is defined by the wing plate, the anti-unhooking plate and the connecting plate. According to the sheet pile structure, the degradable fast-growing bamboos are used as raw materials, so that the sheet pile structure is ecological and environment-friendly; according to the sheet pile structure, bamboo sheet piles are meshed to form a continuous wall body, water flow scouring and soil pressure are effectively resisted, the river regime is stabilized, and a shoreline is protected; the sheet pile structure is light in weight and convenient to construct, and the construction efficiency is improved; the micropore structure and the natural texture on the surface of the sheet pile structure provide a good adhesion matrix for microorganisms and aquatic plants, so that the soil body can be reinforced, and the water body can be purified.

Description

Technical Field

[0001] This invention relates to the field of ecological control engineering, and in particular to a reconstituted bamboo sheet pile structure for ecological control engineering and its construction method. Background Technology

[0002] River control engineering is the core of river regulation, mainly used to control river course, stabilize flow paths, protect shorelines, and ensure flood control safety and unimpeded navigation. Sheet pile structures are important water-retaining facilities in ecological control engineering. Existing sheet piles are mainly steel sheet piles and reinforced concrete sheet piles. However, steel sheet piles are heavy, difficult to construct, prone to corrosion over long-term use, have high maintenance costs, require large amounts of steel, and result in high project investment. Reinforced concrete sheet piles, on the other hand, have high energy consumption and carbon emissions during production, and have low recycling rates, which have a certain impact on the ecological environment.

[0003] In recent years, with the deepening of the concept of ecological and environmental protection, the application of natural and environmentally friendly materials in the engineering field has received widespread attention. Bamboo, as a fast-growing and renewable resource, has advantages such as a short growth cycle, high strength, and being environmentally friendly and pollution-free. However, natural bamboo suffers from limitations in size and insufficient durability, making it difficult to directly apply to sheet pile structures in ecological control engineering. Therefore, how to utilize natural bamboo in ecological control engineering sheet pile structures has significant engineering value and application prospects for solving the problems of poor environmental performance and insufficient synergy between control and ecology in traditional sheet piles. Summary of the Invention

[0004] In view of this, the present invention proposes a reconstituted bamboo sheet pile structure for ecological control engineering, and also proposes a construction method for the reconstituted bamboo sheet pile structure.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: The reconstituted bamboo sheet pile structure for ecological control engineering described in this invention comprises multiple bamboo sheet piles with identical structures, a pile cap at the top of each bamboo sheet pile, and a pile shoe at the bottom of each bamboo sheet pile. The pile cap is a plate-like structure made of multiple layers of bamboo strips bonded together. The length of the pile cap is the same as the width of the bamboo sheet pile, and the width of the pile cap is greater than the maximum height of the bamboo sheet pile. Each bamboo sheet pile is composed of multiple bamboo pile segments connected by wooden dowels. Each bamboo pile segment has a positioning hole on its connecting end face that matches the wooden dowel. The positioning holes between the multiple bamboo pile segments correspond one-to-one. Each bamboo pile unit includes a web, wing plates located on each long side of the web, and interlocking hooks located at the edge of each wing plate. The interlocking hooks include a connecting plate perpendicular to the wing plate and an anti-disengagement hook plate parallel to the wing plate. The wing plate, anti-disengagement hook plate, and connecting plate form an interlocking groove. The pile shoe is a steel pile shoe with two side walls and a bottom wall. The two side walls and the bottom wall form a groove that mates with the web of the bamboo pile. The bottom wall of the pile shoe has a triangular structure with a pointed tip in cross-section, and the vertical height of the bottom wall of the pile shoe is 30-40cm.

[0006] The beneficial effects are: the bamboo sheet piles in this invention are made of bamboo, which can greatly improve construction efficiency and significantly reduce maintenance costs compared to traditional steel sheet piles or concrete piles; in addition, it has been verified that this invention has a very good control effect, which can stabilize the river course and protect the shoreline.

[0007] Preferably, the thickness of the pile cap is 30-50 mm, the width of the pile cap is 100-150 mm longer than the maximum height of the bamboo sheet pile, and the compressive strength of the pile cap is ≥100 MPa, so that it can bear a certain impact load and avoid damage to the bamboo sheet pile during sinking; the thickness of the side wall of the pile shoe is 8-10 mm.

[0008] Preferably, the connecting surface of the connecting plate is provided with two rows of grooves, and the edge of the wing plate is provided with a first L-shaped groove. A row of first tenons, corresponding vertically to one of the rows of grooves, is provided on the platform of the first L-shaped groove. The mounting long side of the anti-detachment plate has a second L-shaped groove opposite to the first L-shaped groove, and a row of second tenons, corresponding to the other row of grooves, is provided on the mounting platform of the second L-shaped groove. More preferably, the groove is a trapezoidal structure, and the first and second tenons are trapezoidal structures that mate with the groove. The beneficial effect is that the interlocking hook of the present invention is connected to the bamboo pile unit through a dovetail joint structure, and the bamboo piles are connected by the interlocking hook to form a continuous wall, improving the anti-lateral displacement performance.

[0009] Preferably, the included angle between the web and the wing of the bamboo pile unit is 90°, and the thickness of the bamboo pile unit is 30 mm; the depth of the positioning insertion hole of the bamboo pile unit is 2 / 3 of its thickness.

[0010] Preferably, the bending elastic modulus of the bamboo pile is ≥28 GPa, the bending strength is ≥165 MPa, the tensile strength parallel to the grain is ≥130 MPa, the compressive strength parallel to the grain is ≥85 MPa, the shear strength parallel to the grain is ≥15.5 MPa, and the local value of the ultimate compressive stress in the transverse direction is ≥20.5 MPa and the overall value is ≥18.5 MPa.

[0011] This invention also proposes a construction method for a reconstructed bamboo sheet pile structure, comprising the following steps: The first step is to prefabricate bamboo pile units, pile caps, and pile shoes in batches at the factory. The web and wing plates of the bamboo pile unit are an integral structure, which is made of multiple bamboo strips that are drawn, carbonized, and dried and then bonded together. It is coated with an anti-corrosion layer. Multiple positioning holes are drilled on the connecting end face of each section of bamboo pile unit, and the tolerance of the positioning holes is controlled within ±0.2mm. Connecting plates and anti-detachment plates are prefabricated in batches at the factory. Both connecting plates and anti-detachment plates are made of multiple layers of bamboo strips bonded together. Two rows of grooves are symmetrically milled at the bottom edge of the connecting plate. The first tenon is milled on the wing plate. The second tenon is milled on the anti-detachment plate. Connecting plates and anti-detachment plates are installed on the wing plates of each bamboo pile unit. The second step involves assembling multiple bamboo sheet piles using individual bamboo piles at the construction site. A pile shoe is then installed at the bottom of each bamboo sheet pile. The bamboo sheet piles are then vertically driven to the designed depth using either static pressure or vibratory pile driving methods. Multiple bamboo sheet piles are then connected by interlocking hooks to form a continuous wall.

[0012] Compared with the prior art, the present invention has the following advantages: The sheet pile structure of this invention uses biodegradable, fast-growing bamboo as raw material, making it eco-friendly. The sheet pile structure consists of bamboo sheet piles connected sequentially by interlocking hooks to form a continuous wall, effectively resisting water erosion and soil pressure, stabilizing river course, and protecting the riverbank. Compared to steel sheet piles, the sheet pile structure of this invention is lighter, allowing for construction using static pressure or vibratory pile driving methods, reducing on-site construction work and improving construction efficiency. Furthermore, the bamboo sheet piles in this invention provide a good attachment substrate for microorganisms and aquatic plants due to their microporous structure and natural texture, which not only reinforces the soil but also purifies the water, contributing to the construction of an underwater ecosystem and improving the river's ecological environment. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the present invention.

[0014] Figure 2 yes Figure 1 Elevation view.

[0015] Figure 3 This is a top view of a single bamboo pile in the middle section.

[0016] Figure 4 This is a schematic diagram showing the connection between the bottom section bamboo pile and the pile shoe.

[0017] Figure 5 This is a side view of the boot and the web.

[0018] Figure 6 This is a diagram showing the positional relationship between bamboo sheet piles and pile caps.

[0019] Figure 7 This is a schematic diagram of the connecting plate.

[0020] Figure 8 This is a schematic diagram of the anti-detachment plate.

[0021] Figure 9 This is a schematic diagram of a single bamboo stake. Detailed Implementation

[0022] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. These embodiments are implemented based on the technical solution of the present invention, and detailed implementation methods and specific operation processes are given. However, the scope of protection of the present invention is not limited to the following embodiments.

[0023] It should be noted that, in the description of this invention, relational terms such as “first” and “second” are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0024] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0025] like Figure 1-6 As shown, this invention proposes a reconstituted bamboo sheet pile structure for ecological control engineering, comprising multiple identical bamboo sheet piles 1, a pile cap 2 at the top of each bamboo sheet pile 1, and a pile shoe 3 at the bottom of each bamboo sheet pile 1; wherein, the pile cap 2 is a plate-like structure made of reconstituted bamboo sheet, the thickness of the pile cap 2 is 30 mm-50 mm, its length is the same as the width of the bamboo sheet pile 1, and its width is greater than the maximum height of the bamboo sheet pile 1 (i.e., 100-150 mm more than the maximum height of the bamboo sheet pile 1). During construction, the lower surface of the pile cap 2 is in contact with the top of the bamboo sheet pile 1, and its compressive strength is ≥100 MPa, thus it can withstand impact loads with hammer energy ≤50 J, effectively avoiding damage to the bamboo sheet pile 1 during vertical construction; The bamboo plank pile 1 is made of reconstituted bamboo planks. During the prefabrication process, the reconstituted bamboo planks are processed into a U-shaped structure, that is, the main body of the bamboo plank pile 1 is U-shaped. Since the length of the plank pile structure is often long, the bamboo plank pile 1 in this invention adopts a split structure. Taking a 24m long bamboo plank pile 1 as an example, the bamboo plank pile 1 is composed of three bamboo pile units with the same structure (the length of each bamboo pile unit is 1 / 2). The connecting end face of each bamboo pile unit (i.e., the bottom face of the top bamboo pile unit, the top and bottom faces of the middle bamboo pile unit, and the top face of the bottom bamboo pile unit) is provided with positioning insertion holes 1a (i.e., dowel holes). The positioning insertion holes 1a on the three bamboo pile units correspond vertically. The depth of the positioning insertion hole 1a is 2 / 3 of the thickness of the bamboo pile unit, and the tolerance of the positioning insertion hole 1a is controlled within ±0.2 mm. The three bamboo pile units are connected by wooden dowels inserted into the positioning insertion holes 1a. During actual installation, to ensure a reliable connection between individual bamboo piles, adhesive can be injected into each positioning hole 1a. The pins and positioning holes 1a fit tightly together and are also bonded together by the adhesive. Of course, if the design length of the bamboo sheet pile is short, the bamboo sheet pile can also be made from a single bamboo pile or by assembling two bamboo piles.

[0026] Combination Figure 1 It is known that the thickness of a single bamboo stake is 30mm, the width is 600mm, and the maximum height is 225mm. A single bamboo stake includes a web 1b, wing plates 1c located on each long side of the web 1b, and interlocking hooks located at the edges of the wing plates 1c. The angle between the web 1b and the wing plates 1c is 90°. The interlocking hook includes a connecting plate 1d perpendicular to the wing plates 1c and an anti-detachment hook plate parallel to the wing plates 1c. The wing plates 1c, the anti-detachment hook plate 1e, and the connecting plate 1d form an interlocking groove. The connecting plate 1d is perpendicular to both the wing plates 1c and the anti-detachment hook plate 1e.

[0027] Combination Figure 7-9 It can be seen that two rows of grooves 1f are provided on the connecting surface (i.e. the edge of the bottom surface) of the connecting plate 1d, that is, one row of grooves 1f is provided at each edge of the bottom surface, and multiple grooves 1f in each row are spaced apart. The grooves 1f are trapezoidal structures with one end larger than the other. Correspondingly, a first L-shaped groove is provided at the edge of the wing plate 1c. A row of first tenons 1h is provided on the platform of the first L-shaped groove, which corresponds to one of the rows of grooves 1f. The first tenons 1h are trapezoidal structures with one end larger than the other, and they are adapted to be inserted into one of the rows of grooves 1f. The anti-detachment plate 1e has a second L-shaped groove on its long mounting side, which is opposite to the first L-shaped groove. A row of second tenons 1k, corresponding to another row of grooves 1f, is provided on the mounting platform of the second L-shaped groove. The second tenons 1k are trapezoidal structures with one end larger than the other, and they are adapted to be inserted into the other row of grooves 1f. During actual assembly, the connecting plate 1d is pushed in from one side of the wing plate 1c, so that the groove 1f on one side is adapted to be inserted into the first tenon 1h on the wing plate 1c; then, the second tenon 1k of the anti-detachment plate 1e is aligned with the other row of grooves 1f of the connecting plate 1d, and the anti-detachment plate 1e and the connecting plate 1d are forcefully inserted to complete the assembly of the engagement hook.

[0028] In actual processing, the fit tolerance between the tenon and the groove 1f is controlled within ±0.3 mm, which effectively ensures the assembly accuracy and tight interlocking between the connecting plate 1d, the wing plate 1c, and the anti-disengagement plate 1e, improves the shear resistance, pull-out resistance and lateral displacement resistance of the bamboo sheet pile 1, and further improves the overall stability of the sheet pile structure.

[0029] Combination Figure 4-5 It is known that the pile shoe 3 has two side walls and a bottom wall, which together form a U-shaped groove that mates with the web 1b of the bamboo sheet pile 1. The pile shoe 3 is fitted onto the web 1b of the bamboo sheet pile 1 through the groove. The bottom wall of the pile shoe 3 has a triangular cross-section with a pointed tip. The vertical height of the bottom wall of the pile shoe 3 is 30-40 cm. The two bottom angles of the pile shoe 3 are equal and both are 30-45°, so that the pointed tip of the pile shoe 3 is located on the center line of the web 1b, avoiding eccentric stress.

[0030] In actual processing, the pile shoe 3 is made of steel and its surface is treated with hot-dip galvanizing for corrosion protection, which ensures good corrosion resistance in complex geological environments. On the other hand, it can break up boulders with a particle size of less than 20 cm during the bamboo sheet pile construction process, ensuring the smooth construction of the bamboo sheet pile 1.

[0031] This invention also proposes a construction method for the above-mentioned reconstituted bamboo sheet pile structure, comprising the following steps: The first step is to clear weeds, gravel, loose soil and obstacles from the construction area, and use a screed to trim the bank slope to the designed slope to ensure that the construction site is flat and firm; according to the design location, use a total station to accurately lay out the line and mark the position of bamboo sheet pile 1; for areas with a concentration of large boulders, mark them as key pile driving sections; The second step is to prefabricate bamboo pile units (including web plate 1b, wing plate 1c, connecting plate 1d and anti-detachment plate 1e), pile cap 2 and pile shoe 3 in batches in the factory. The web plate 1b and wing plate 1c of the bamboo pile unit are integrated structures. The surfaces of the web plate 1b, wing plate 1c, connecting plate 1d and anti-detachment plate 1e are all coated with an anti-corrosion layer. During prefabrication, two rows of grooves 1f are symmetrically milled at the bottom edge of the connecting plate 1d, the first tenon 1h is milled on the wing plate 1c, and the second tenon 1k is milled on the anti-disengagement plate 1f. The fit tolerance between the first tenon 1h and the groove 1f, and the fit tolerance between the second tenon 1k and the groove 1f are all controlled within ±0.3 mm. Drill holes (i.e., positioning holes) at even intervals on the connecting surface of the bamboo pile unit. The diameter tolerance of the positioning hole 1a is controlled at ±0.2 mm and matches the wooden dowel. The depth of the positioning hole 1a is 2 / 3 of the thickness of the bamboo pile unit, and ensure that the positioning holes 1a between the upper and lower sections of the bamboo pile unit correspond one-to-one. If the positioning hole is found to be offset or blocked, use special drilling equipment to correct or clean it to ensure the smooth insertion of the subsequent wooden dowel. The second step involves longitudinally splicing bamboo sheet piles at the construction site. This involves aligning the top section of the bamboo sheet pile with the middle section, applying adhesive to the connecting surfaces of the bamboo sheet piles and inside each positioning hole 1a, and then using wooden dowels to connect the top section of the bamboo sheet pile with the middle section of the bamboo sheet pile. Similarly, the bottom section of the bamboo sheet pile is connected to the middle section of the bamboo sheet pile. This process is repeated to assemble multiple bamboo sheet piles. During the assembly of bamboo plank piles, adhesive is used to fill the gaps between individual bamboo piles and the positioning holes 1a, combined with wooden dowels to improve the stability of the connection. After assembly, the appearance of each bamboo plank pile 1 is checked to ensure that there is no obvious damage or cracking. The bonding condition of the three sections of bamboo piles 1 at the connection of each bamboo plank pile 1 is checked to ensure a reliable connection between the upper and lower sections of bamboo piles. The third step is to vertically lift bamboo sheet pile 1 and use static pressure method or (or vibratory pile driving method) to vertically press (or drive or sink) each bamboo sheet pile 1 to the design depth. Then, vertically lift the second bamboo sheet pile and construct it to the design depth. The direction of the second bamboo sheet pile is opposite to that of the first bamboo sheet pile, so that one of the interlocking hooks of the second bamboo sheet pile engages with the first bamboo sheet pile. Repeat the above construction steps to construct multiple bamboo sheet piles to the design depth one by one, so that the bamboo sheet piles are connected in sequence to form a continuous wall. Before construction, the pile cap 2 is placed flat on top of the bamboo sheet pile 1 to distribute the hammering or static pile driving force and prevent damage to the top of the bamboo sheet pile 1. During construction, the construction speed of the bamboo sheet pile 1 is controlled at 0.5-1.0 m / min, and the verticality of the bamboo sheet pile 1 is measured using a total station or laser collimator to control the vertical deviation of each bamboo sheet pile 1 within 1%. Furthermore, when the sinking depth of the bamboo sheet pile 1 is close to the design depth, the construction speed is slowed down. If large boulders (particle size ≤20cm) are encountered, the gravel is broken by static pressure impact to ensure that the bamboo sheet pile 1 is successfully constructed to the design depth, and the deviation of the upper elevation of the pile is controlled within ±3cm.

[0032] Through testing, the sheet pile structure of the present invention has the following properties: flexural elastic modulus ≥28 GPa, flexural strength ≥165 MPa, tensile strength parallel to the grain ≥130 MPa, compressive strength parallel to the grain ≥85 MPa, shear strength parallel to the grain ≥15.5 MPa, and local value of ultimate compressive stress in transverse direction ≥20.5 MPa and overall value ≥18.5 MPa.

[0033] The sheet pile structure of this invention uses biodegradable, fast-growing bamboo as raw material, making it eco-friendly. The sheet pile structure consists of bamboo sheet piles 1 connected sequentially by interlocking hooks to form a continuous wall, effectively resisting water erosion and soil pressure, stabilizing the riverbed, and protecting the shoreline. Compared to steel sheet piles, the sheet pile structure of this invention is lighter, allowing for construction using static pressure or vibratory pile driving methods, reducing on-site construction work and improving construction efficiency. Furthermore, the bamboo sheet piles in this invention provide a good attachment substrate for microorganisms and aquatic plants due to their microporous structure and natural texture, which not only strengthens the soil but also purifies the water, contributing to the construction of an underwater ecosystem and improving the river's ecological environment.

[0034] Finally, it should be emphasized that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still make modifications to the technical solutions described in the foregoing embodiments without creative effort, or make equivalent substitutions for some of the technical features. Therefore, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A reconstituted bamboo sheet pile structure for ecological control engineering, characterized in that: The reconstituted sheet pile structure includes multiple bamboo sheet piles with identical structures, a pile cap set on top of each bamboo sheet pile, and a pile shoe set at the bottom of each bamboo sheet pile. The pile cap is a plate-like structure made of multiple layers of bamboo strips bonded together. The length of the pile cap is the same as the width of the bamboo sheet pile, and the width of the pile cap is greater than the maximum height of the bamboo sheet pile. Each bamboo sheet pile is made of multiple bamboo pile segments connected by wooden dowels. Each bamboo pile segment has a positioning hole on its connecting end face that matches the wooden dowel. The positioning holes between the multiple bamboo pile segments correspond one-to-one. Each bamboo pile unit includes a web, wing plates located on each long side of the web, and interlocking hooks located at the edge of each wing plate. The interlocking hooks include a connecting plate perpendicular to the wing plate and an anti-disengagement hook plate parallel to the wing plate. The wing plate, anti-disengagement hook plate, and connecting plate form an interlocking groove. The pile shoe is a steel pile shoe with two side walls and a bottom wall. The two side walls and the bottom wall form a groove that mates with the web of the bamboo pile. The bottom wall of the pile shoe has a triangular structure with a pointed tip in cross-section, and the vertical height of the bottom wall of the pile shoe is 30-40cm.

2. The reconstituted bamboo sheet pile structure for ecological control engineering according to claim 1, characterized in that: The thickness of the pile cap is 30-50 mm, the width of the pile cap is 100-150 mm longer than the maximum height of the bamboo sheet pile, and the compressive strength of the pile cap is ≥100 MPa; the thickness of the sidewall of the pile shoe is 8-10 mm.

3. The reconstituted bamboo sheet pile structure for ecological control engineering according to claim 1, characterized in that: The connecting plate has two rows of grooves on its connecting surface, and the wing plate has a first L-shaped groove at its edge. The platform of the first L-shaped groove has a row of first protrusions that correspond vertically to one of the rows of grooves. The mounting long side of the anti-detachment plate has a second L-shaped groove that is opposite to the first L-shaped groove. The mounting platform of the second L-shaped groove has a row of second protrusions that correspond to the other row of grooves.

4. The reconstituted bamboo sheet pile structure for ecological control engineering according to claim 3, characterized in that: The groove is a trapezoidal structure, and the first tenon and the second tenon are trapezoidal structures that mate with the groove.

5. The reconstituted bamboo sheet pile structure for ecological control engineering according to claim 3, characterized in that: The included angle between the web and wing of the bamboo pile unit is 90°, and the thickness of the bamboo pile unit is 30 mm; the depth of the positioning insertion hole of the bamboo pile unit is 2 / 3 of its thickness.

6. The reconstituted bamboo sheet pile structure for ecological control engineering according to claim 1, characterized in that: The single bamboo pile has a bending elastic modulus ≥28 GPa, bending strength ≥165 MPa, tensile strength parallel to the grain ≥130 MPa, compressive strength parallel to the grain ≥85 MPa, shear strength parallel to the grain ≥15.5 MPa, and local values ​​of compressive stress in the transverse direction ≥20.5 MPa and overall values ​​≥18.5 MPa.

7. A construction method for a reconstituted bamboo sheet pile structure as described in claims 1-6, characterized in that: The construction method includes the following steps: The first step is to prefabricate bamboo pile units, pile caps, and pile shoes in batches at the factory. The web and wing plates of the bamboo pile unit are an integral structure, which is made of multiple bamboo strips that are drawn, carbonized, and dried and then bonded together. It is coated with an anti-corrosion layer. Multiple positioning holes are drilled on the connecting end face of each section of bamboo pile unit, and the tolerance of the positioning holes is controlled within ±0.2mm. Connecting plates and anti-detachment plates are prefabricated in batches at the factory. Both connecting plates and anti-detachment plates are made of multiple layers of bamboo strips bonded together. Two rows of grooves are symmetrically milled at the bottom edge of the connecting plate. The first tenon is milled on the wing plate. The second tenon is milled on the anti-detachment plate. Connecting plates and anti-detachment plates are installed on the wing plates of each bamboo pile unit. The second step involves assembling multiple bamboo sheet piles using individual bamboo piles at the construction site. A pile shoe is then installed at the bottom of each bamboo sheet pile. The bamboo sheet piles are then vertically driven to the designed depth using either static pressure or vibratory pile driving methods. Multiple bamboo sheet piles are then connected by interlocking hooks to form a continuous wall.

Images