Honeycomb-based bionic compressible prefabricated retaining wall and manufacturing method thereof

Abstract

The invention discloses a honeycomb-based bionic compressible prefabricated retaining wall and a manufacturing method thereof. The honeycomb-based bionic compressible prefabricated retaining wall comprises a plurality of rectangular prefabricated underground retaining walls and L-shaped prefabricated underground retaining walls. The rectangular prefabricated underground retaining wall comprises a rectangular compressible cushion layer and a rectangular concrete retaining wall, and the L-shaped prefabricated underground retaining wall comprises an L-shaped compressible cushion layer and an L-shaped concrete retaining wall. The compressible cushion layer is made of basalt fiber concrete materials. During splicing, in the transverse direction of the retaining walls, the adjacent rectangular prefabricated underground retaining walls are spliced through the flanges I and the mounting grooves I, and the adjacent rectangular prefabricated underground retaining walls and the L-shaped prefabricated underground retaining walls are spliced through the flanges I and the mounting grooves III; in the longitudinal direction of the retaining wall, the adjacent rectangular prefabricated underground retaining walls are spliced through the flanges II and the mounting grooves II, and the adjacent L-shaped prefabricated underground retaining walls are spliced through the flanges IV and the mounting grooves IV. By means of the prefabricated retaining wall, the construction speed is effectively increased, the applicability is high, the honeycomb bionic thought is used for reference, and the toughness of the retaining wall is improved by selecting basalt fiber concrete materials.

Description

Technical Field

[0001] The invention relates to the technical field of geotechnical engineering, in particular to a compressible prefabricated retaining wall based on honeycomb bionics and a manufacturing method thereof. Background Art

[0002] As my country's economy develops, there are more and more projects such as foundation pits, slopes and large buildings. Retaining wall support has become an important part of ensuring the safety of these projects. At present, underground retaining walls have problems such as slow construction speed, difficult to ensure safety performance, difficult to control retaining wall displacement, and cracks are prone to occur when the retaining wall is deformed.

[0003] In engineering structures, in order to improve the bending resistance of concrete structures, bending-resistant steel bars or fibers are usually added. As the most commonly used building material, concrete has excellent compressive resistance, but it is prone to brittle fracture when subjected to bending loads. The bending-compression ratio of ordinary concrete is about 1 / 12 to 1 / 8. In order to enhance the bending resistance of concrete, adding fibers is one of the effective methods. Underground retaining walls are widely used in projects such as foundation pit engineering. The underground environment is complex and changeable. Under conditions rich in groundwater and the presence of chaotic currents, steel bars or steel fibers are prone to rust and expand, and are conductive, which seriously affects the structural quality of the retaining wall.

[0004] Therefore, it is necessary to use a new type of fiber material that is not easily affected by the above factors to ensure the quality of the retaining wall during use. Summary of the invention

[0005] The purpose of the present invention is to provide a compressible prefabricated retaining wall based on honeycomb bionics, comprising a plurality of rectangular prefabricated underground retaining walls and an L-shaped prefabricated underground retaining wall spliced ​​together.

[0006] The rectangular prefabricated underground retaining wall comprises a rectangular compressible cushion layer and a rectangular concrete retaining wall.

[0007] The rectangular concrete retaining wall has six faces, the face connected to the rectangular compressible cushion is recorded as face A, the face opposite to face A is recorded as face B, and the remaining four end faces are recorded as end face C, end face D, end face E and end face F in sequence.

[0008] The end surface C is provided with a flange I.

[0009] The end surface E is provided with a mounting groove I.

[0010] A plurality of flanges II are arranged at intervals on the end surface D.

[0011] The end surface F is provided with a plurality of installation grooves II at intervals.

[0012] The L-shaped prefabricated underground retaining wall comprises an L-shaped compressible cushion and an L-shaped concrete retaining wall.

[0013] The L-shaped concrete retaining wall has six faces, the face connected to the L-shaped compressible cushion is recorded as G face, the face opposite to G face is recorded as H face, and the remaining four end faces are recorded as end face I, end face J, end face K and end face L in sequence.

[0014] The end surface I is provided with a flange III.

[0015] The end surface K is provided with a mounting groove III.

[0016] A plurality of flanges IV are provided on the end surface J at intervals.

[0017] The end surface L is provided with a plurality of installation grooves IV at intervals.

[0018] A plurality of concrete pouring holes I and concrete pouring holes II are respectively arranged at intervals inside the rectangular concrete retaining wall and the L-shaped concrete retaining wall.

[0019] When splicing, in the transverse direction of the retaining wall, adjacent rectangular prefabricated underground retaining walls are spliced ​​through flange I and installation groove I, and adjacent rectangular prefabricated underground retaining walls and L-shaped prefabricated underground retaining walls are spliced ​​through flange I and installation groove III; in the longitudinal direction of the retaining wall, adjacent rectangular prefabricated underground retaining walls are spliced ​​through flange II and installation groove II, and adjacent L-shaped prefabricated underground retaining walls are spliced ​​through flange IV and installation groove IV.

[0020] Furthermore, the rectangular compressible cushion layer and the L-shaped compressible cushion layer are made of basalt fiber concrete material.

[0021] The rectangular concrete retaining wall and the L-shaped concrete retaining wall are formed by pouring concrete.

[0022] Furthermore, the cross-sections of the rectangular compressible cushion layer and the L-shaped compressible cushion layer are honeycomb structures.

[0023] Furthermore, the setting position of the flange I corresponds to the opening position of the mounting groove I and the mounting groove III, and the size of the flange I is compatible with the size of the mounting groove I and the mounting groove III.

[0024] The setting position of the flange II corresponds to the opening position of the installation groove II, and the size of the flange II is adapted to the size of the installation groove II.

[0025] The setting position of the flange III corresponds to the opening position of the installation groove I, and the size of the flange III is compatible with the size of the installation groove I.

[0026] The setting position of the flange IV corresponds to the opening position of the installation groove IV, and the size of the flange IV is adapted to the size of the installation groove IV.

[0027] Furthermore, the cross-sectional shapes of the G surface, H surface, end surface J and end surface L of the L-shaped prefabricated underground retaining wall are all L-shaped.

[0028] Furthermore, the concrete pouring hole I and the flange II are spaced apart; the concrete pouring hole II and the flange IV are spaced apart.

[0029] Furthermore, the setting direction of the concrete pouring hole I is the same as the setting direction of the flange I, and both are arranged along the longitudinal direction of the rectangular concrete retaining wall.

[0030] The setting direction of the concrete pouring hole II is the same as the setting direction of the flange III, and both are arranged along the longitudinal direction of the L-shaped concrete retaining wall.

[0031] Furthermore, the openings of the concrete pouring holes I of the upper and lower rectangular concrete retaining walls are aligned.

[0032] The openings of the concrete pouring holes II of the upper and lower L-shaped concrete retaining walls are aligned.

[0033] Another object of the present invention is to provide a method for manufacturing a honeycomb bionic compressible prefabricated retaining wall, comprising the following steps:

[0034] 1) Install underground retaining wall trench excavation system;

[0035] 2) Use the underground retaining wall trench excavation system to excavate the underground retaining wall trench according to the design requirements, and calculate the number of required rectangular prefabricated underground retaining walls and L-shaped prefabricated underground retaining walls;

[0036] 3) After the excavation of the underground retaining wall trench is completed, the rectangular prefabricated underground retaining wall and the L-shaped prefabricated underground retaining wall are lowered into the trench for splicing;

[0037] 4) pouring concrete in concrete pouring hole I and concrete pouring hole II, and pouring concrete into the soil outside the retaining wall at the same time;

[0038] 5) After the concrete is poured, excavate the soil inside the retaining wall.

[0039] Furthermore, the underground retaining wall trench excavation system includes a power and transmission system, an excavation system and a frame system.

[0040] The power and transmission system comprises an engine I, a steel cable, a pulley and a steel cable take-up drum.

[0041] The steel cable is wound on a steel cable take-up drum, one end of which is connected to the engine I, and the other end is fixed by a pulley and connected to the excavation system.

[0042] The excavation system comprises an excavation cutterhead assembly and an engine II for driving the excavation cutterhead assembly to excavate.

[0043] The excavating cutterhead assembly includes a plurality of cutterheads for excavating underground retaining wall trenches.

[0044] The frame system is a steel truss, which is located above the underground retaining wall trench. The power and transmission system and the excavation system are all located inside the steel truss, and the steel cables and pulleys are fixed on the steel truss.

[0045] The technical effect of the present invention is unquestionable, and the beneficial effects of the present invention are as follows:

[0046] A. Using prefabricated retaining walls can effectively speed up construction and shorten the construction period;

[0047] B. Drawing on the idea of ​​honeycomb bionics, basalt fiber concrete material has the advantages of environmentally friendly production and strong compressibility, which can increase the toughness of the retaining wall and effectively reduce the maximum lateral displacement of the retaining wall;

[0048] C. The trench excavation system is fixed on a steel frame, and the system is safe and reliable;

[0049] D. The device can be adjusted according to actual requirements and has strong applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 This is a schematic diagram of the underground retaining wall trench excavation system;

[0051] Figure 2 This is a schematic diagram of a rectangular prefabricated underground retaining wall;

[0052] Figure 3 This is a cross-section diagram of a rectangular prefabricated underground retaining wall;

[0053] Figure 4 This is a schematic diagram of an L-shaped prefabricated underground retaining wall;

[0054] Figure 5 This is the cross-section of the L-shaped prefabricated underground retaining wall;

[0055] Figure 6 Detailed structural drawings of rectangular compressible cushions and L-shaped compressible cushions.

[0056] In the figure: underground retaining wall trench excavation system 1, power and transmission system 101, engine I 1011, steel cable 1012, pulley 1013, steel cable take-up drum 1014, excavation system 102, engine II 1021, excavation cutter head group 1022, frame system 103, rectangular prefabricated underground retaining wall 2, rectangular compressible cushion 201, rectangular concrete retaining wall 202, concrete pouring hole I 203, flange I 204, installation groove I 205, flange II 206, installation groove II 207, L-shaped prefabricated underground retaining wall 3, L-shaped compressible cushion 301, L-shaped concrete retaining wall 302, concrete pouring hole II 303, flange III 304, installation groove III 305, flange IV 306, installation groove IV 307. DETAILED DESCRIPTION

[0057] The present invention is further described below in conjunction with the embodiments, but it should not be understood that the above subject matter of the present invention is limited to the following embodiments. Without departing from the above technical ideas of the present invention, various substitutions and changes are made according to the common technical knowledge and customary means in the art, which should all be included in the protection scope of the present invention.

[0058] Embodiment 1:

[0059] A compressible prefabricated retaining wall based on honeycomb bionics comprises a plurality of rectangular prefabricated underground retaining walls 2 and an L-shaped prefabricated underground retaining wall 3 which are spliced ​​together.

[0060] The rectangular prefabricated underground retaining wall 2 includes a rectangular compressible cushion layer 201 and a rectangular concrete retaining wall 202 .

[0061] The rectangular concrete retaining wall 202 has six faces, the face connected to the rectangular compressible cushion 201 is recorded as face A, the face opposite to face A is recorded as face B, and the remaining four end faces are recorded as end face C, end face D, end face E and end face F in sequence.

[0062] The end surface C is provided with a flange I204.

[0063] The end surface E is provided with a mounting groove I205.

[0064] A plurality of flanges II206 are provided on the end surface D at intervals.

[0065] The end surface F is provided with a plurality of installation grooves II207 at intervals.

[0066] The L-shaped prefabricated underground retaining wall 3 includes an L-shaped compressible cushion 301 and an L-shaped concrete retaining wall 302 .

[0067] The L-shaped concrete retaining wall 302 has six faces, the face connected to the L-shaped compressible cushion 301 is recorded as G face, the face opposite to G face is recorded as H face, and the remaining four end faces are recorded as end face I, end face J, end face K and end face L in sequence.

[0068] The end surface I is provided with a flange III304.

[0069] The end surface K is provided with a mounting groove III305.

[0070] A plurality of flanges IV306 are provided on the end surface J at intervals.

[0071] A plurality of installation grooves IV307 are spaced apart on the end surface L.

[0072] A plurality of concrete pouring holes I203 and concrete pouring holes II303 are respectively spaced apart inside the rectangular concrete retaining wall 202 and the L-shaped concrete retaining wall 302 .

[0073] When splicing, in the horizontal direction of the retaining wall, adjacent rectangular prefabricated underground retaining walls 2 are spliced ​​by flange I204 and installation groove I205, and adjacent rectangular prefabricated underground retaining walls 2 and L-shaped prefabricated underground retaining walls 3 are spliced ​​by flange I204 and installation groove III305; in the longitudinal direction of the retaining wall, adjacent rectangular prefabricated underground retaining walls 2 are spliced ​​by flange II206 and installation groove II207, and adjacent L-shaped prefabricated underground retaining walls 3 are spliced ​​by flange IV306 and installation groove IV307.

[0074] Embodiment 2:

[0075] The main structure of this embodiment is the same as that of Embodiment 1. Furthermore, the rectangular compressible cushion layer 201 and the L-shaped compressible cushion layer 301 are made of basalt fiber concrete material.

[0076] The rectangular concrete retaining wall 202 and the L-shaped concrete retaining wall 302 are formed by pouring concrete.

[0077] Embodiment 3:

[0078] The main structure of this embodiment is the same as any one of Embodiments 1 to 2. Furthermore, the cross-sections of the rectangular compressible cushion layer 201 and the L-shaped compressible cushion layer 301 are honeycomb structures.

[0079] Embodiment 4:

[0080] The main structure of this embodiment is the same as any one of embodiments 1 to 3. Furthermore, the setting position of the flange I204 corresponds to the opening position of the installation groove I205 and the installation groove III305, and the size of the flange I204 is compatible with the size of the installation groove I205 and the installation groove III305.

[0081] The setting position of the flange II206 corresponds to the opening position of the installation groove II207, and the size of the flange II206 is compatible with the size of the installation groove II207.

[0082] The setting position of the flange III304 corresponds to the opening position of the installation groove I205, and the size of the flange III304 is compatible with the size of the installation groove I205.

[0083] The setting position of the flange IV306 corresponds to the opening position of the installation groove IV307, and the size of the flange IV306 is compatible with the size of the installation groove IV307.

[0084] Embodiment 5:

[0085] The main structure of this embodiment is the same as any one of Embodiments 1 to 4. Furthermore, the cross-sectional shapes of the G surface, H surface, end surface J and end surface L of the L-shaped prefabricated underground retaining wall 3 are all L-shaped.

[0086] Embodiment 6:

[0087] The main structure of this embodiment is the same as any one of Embodiments 1 to 5. Furthermore, the concrete pouring hole I203 and the flange II206 are spaced apart.

[0088] The concrete pouring hole II303 and the flange IV306 are spaced apart.

[0089] Embodiment 7:

[0090] The main structure of this embodiment is the same as any one of Embodiments 1 to 6. Furthermore, the setting direction of the concrete pouring hole 1203 is the same as the setting direction of the flange 1204 , and both are arranged along the longitudinal direction of the rectangular concrete retaining wall 202 .

[0091] The setting direction of the concrete pouring hole II303 is the same as the setting direction of the flange III304 , and both are arranged along the longitudinal direction of the L-shaped concrete retaining wall 302 .

[0092] Embodiment 8:

[0093] The main structure of this embodiment is the same as any one of Embodiments 1 to 7. Furthermore, the openings of the concrete pouring holes I203 of the upper and lower rectangular concrete retaining walls 202 are aligned.

[0094] The openings of the concrete pouring holes II303 of the upper and lower L-shaped concrete retaining walls 302 are aligned.

[0095] Embodiment 9:

[0096] The main structure of this embodiment is the same as any one of Embodiments 1 to 8. Figure 2 A flange I204 is provided on the end face C of the rectangular concrete retaining wall 202 . The cross-sectional shape of the flange I204 is rectangular and is arranged along the longitudinal direction of the rectangular concrete retaining wall 202 .

[0097] Two flanges II206 and three concrete pouring holes I203 are arranged at intervals on the end surface D of the rectangular concrete retaining wall 202, and the flanges II206 and the concrete pouring holes I203 are arranged at intervals.

[0098] An installation groove 1205 is provided on the end surface E of the rectangular concrete retaining wall 202 , and the position, shape and size of the installation groove 1205 are adapted to the flange 1204 .

[0099] Two installation grooves II207 are spaced apart on the end surface F of the rectangular concrete retaining wall 202 , and the position, shape and size of the installation grooves II207 are adapted to the flange II206 .

[0100] A flange III304 is provided on the end surface I of the L-shaped concrete retaining wall 302 . The cross-sectional shape of the flange III304 is rectangular and is arranged along the longitudinal direction of the L-shaped concrete retaining wall 302 .

[0101] Three flanges IV306 and two concrete pouring holes II303 are arranged at intervals on the end surface J of the L-shaped concrete retaining wall 302 . The flanges IV306 and the concrete pouring holes II303 are arranged at intervals, wherein one flange IV306 is located at a corner of the L-shaped concrete retaining wall 302 .

[0102] An installation groove III305 is provided on the end surface K of the L-shaped concrete retaining wall 302 , and the position, shape and size of the installation groove III305 are adapted to the flange I204 .

[0103] Three installation grooves IV307 are provided on the end surface L of the L-shaped concrete retaining wall 302 , and the position, shape and size of the installation grooves IV307 are adapted to the flange IV306 .

[0104] Embodiment 10:

[0105] A method for manufacturing a honeycomb bionic compressible prefabricated retaining wall according to any one of embodiments 1 to 9 comprises the following steps:

[0106] 1) Install underground retaining wall trench excavation system 1;

[0107] 2) using the underground retaining wall trench excavation system 1, excavating the underground retaining wall trench according to the design requirements, and calculating the number of the required rectangular prefabricated underground retaining wall 2 and the L-shaped prefabricated underground retaining wall 3;

[0108] 3) After the excavation of the underground retaining wall trench is completed, the rectangular prefabricated underground retaining wall 2 and the L-shaped prefabricated underground retaining wall 3 are lowered into the trench for splicing;

[0109] 4) pouring concrete in the concrete pouring hole I203 and the concrete pouring hole II303, and pouring concrete into the soil outside the retaining wall at the same time;

[0110] 5) After the concrete is poured, excavate the soil inside the retaining wall.

[0111] Embodiment 11:

[0112] The main structure of this embodiment is the same as any one of Embodiments 1 to 10. Furthermore, the underground retaining wall trench excavation system 1 includes a power and transmission system 101, an excavation system 102 and a frame system 103.

[0113] The power and transmission system 101 includes an engine Ⅰ 1011, a steel cable 1012, a pulley 1013 and a steel cable take-up drum 1014.

[0114] The steel cable 1012 is wound on a steel cable take-up drum 1014, one end of which is connected to the engine I 1011, and the other end is fixed by a pulley 1013 and connected to the excavation system 102;

[0115] The excavation system 102 includes an excavation cutterhead assembly 1022 and an engine II 1021 for driving the excavation cutterhead assembly 1022 to excavate.

[0116] The excavating cutterhead assembly 1022 includes a plurality of cutterheads for excavating underground retaining wall trenches.

[0117] The frame system 103 is a steel truss, which is located above the underground retaining wall trench. The power and transmission system 101 and the excavation system 102 are both located inside the steel truss, and the steel cable 1012 and the pulley 1013 are fixed on the steel truss.

[0118] Embodiment 12:

[0119] The main structure of this embodiment is the same as any one of Embodiments 1 to 11. Furthermore, a compressible prefabricated retaining wall based on honeycomb bionics includes a plurality of rectangular prefabricated underground retaining walls 2 and an L-shaped prefabricated underground retaining wall 3.

[0120] The rectangular prefabricated underground retaining wall 2 is composed of a rectangular compressible cushion layer 201 and a rectangular concrete retaining wall 202. The rectangular compressible cushion layer 201 is made of basalt fiber concrete material, and the rectangular concrete retaining wall 202 is cast in advance by ordinary concrete.

[0121] The rectangular concrete retaining wall 202 is provided with a horizontal splicing component I and a horizontal splicing component II on the left and right sides respectively. The horizontal splicing component I is a vertical rectangular strip I, and the horizontal splicing component II is a vertical rectangular groove I. The vertical rectangular strip I of the horizontal splicing component I and the vertical rectangular groove I of the horizontal splicing component II correspond to each other in size.

[0122] The rectangular concrete retaining wall 202 is provided with a vertical splicing component I and a vertical splicing component II on the upper and lower sides respectively. The vertical splicing component I is located on the upper side of the rectangular concrete retaining wall and is two raised rectangular blocks. The vertical splicing component II is located on the lower side of the rectangular concrete retaining wall and is two rectangular grooves. The rectangular blocks and rectangular grooves of the vertical splicing component I and the vertical splicing component II correspond to each other in position and size.

[0123] A concrete casting trough I203 is provided in the middle of the rectangular concrete retaining wall 202 , and each rectangular prefabricated underground retaining wall 2 is provided with three concrete casting troughs I203 , which are evenly distributed from the horizontal splicing component I to the horizontal splicing component II and pass through the rectangular concrete retaining wall 202 in the vertical direction.

[0124] The concrete pouring troughs 1203 are all distributed in the rectangular concrete retaining wall 202. Ordinary silicate concrete is poured in the concrete pouring troughs 203, and the concrete pouring is completed during construction.

[0125] The L-shaped prefabricated underground retaining wall 3 is composed of an L-shaped compressible cushion layer 301 and an L-shaped concrete retaining wall 302. The L-shaped compressible cushion layer 301 is made of basalt fiber concrete material, and the L-shaped concrete retaining wall 302 is cast in advance by ordinary concrete.

[0126] The L-shaped concrete retaining wall 302 is provided with a horizontal splicing component III and a horizontal splicing component IV at the two ends of the L shape, respectively. The horizontal splicing component III is a vertical rectangular bar II, and the horizontal splicing component IV is a vertical rectangular groove II. The vertical rectangular bar II of the horizontal splicing component III and the vertical rectangular groove II of the horizontal splicing component IV correspond to each other in size, and the vertical rectangular bar II corresponds to the vertical rectangular bar I in size, and the vertical rectangular groove II corresponds to the vertical rectangular groove I in size.

[0127] The upper and lower sides of the L-shaped concrete retaining wall 302 are respectively provided with a vertical splicing component III and a vertical splicing component IV. The vertical splicing component III is located on the upper side of the L-shaped concrete retaining wall 302 and is three protruding blocks. The vertical splicing component IV is located on the lower side of the L-shaped concrete retaining wall 302 and is three grooves. The protruding blocks and grooves of the vertical splicing component III and the vertical splicing component IV correspond to each other in position and size.

[0128] A concrete casting trough II303 is provided in the middle of the L-shaped concrete retaining wall 302. Each L-shaped prefabricated underground retaining wall 3 is provided with two concrete casting troughs II303, which are distributed along the L shape from the horizontal splicing component III to the horizontal splicing component IV and pass through the L-shaped concrete retaining wall 302 in the vertical direction.

[0129] The concrete pouring troughs II303 are all distributed in the L-shaped concrete retaining wall 302. Ordinary silicate concrete is poured in the concrete pouring troughs 303, and the concrete pouring is completed during construction.

[0130] When using prefabricated retaining walls, it is necessary to first excavate trenches for the installation of prefabricated retaining walls, and install a number of rectangular prefabricated underground retaining walls 2 and L-shaped prefabricated underground retaining walls 3 according to actual needs. During installation, the rectangular prefabricated underground retaining walls 2 adjacent to each other in the horizontal direction are spliced ​​by horizontal splicing components I and horizontal splicing components II; the rectangular underground prefabricated retaining walls 2 and L-shaped prefabricated underground retaining walls 3 adjacent to each other in the horizontal direction are spliced ​​by horizontal splicing components II and horizontal splicing components III or horizontal splicing components I and horizontal splicing components IV, the rectangular prefabricated underground retaining walls 2 in the vertical direction are spliced ​​by vertical splicing components I and vertical splicing components II, and the L-shaped prefabricated underground retaining walls 3 in the vertical direction are spliced ​​by vertical splicing components III and vertical splicing components IV.

[0131] Then, concrete is poured into the concrete pouring trough 203 and the concrete pouring trough 303. After the concrete is poured and formed, the soil inside the retaining wall is excavated.

[0132] The method for manufacturing the honeycomb bionic compressible prefabricated retaining wall comprises the following steps:

[0133] 1) Install underground retaining wall trench excavation system 1;

[0134] 2) using a trench excavation system to excavate a trench to a required depth and length according to design requirements, and then lowering a plurality of rectangular prefabricated underground retaining walls 2 and an L-shaped prefabricated underground retaining wall 3 into the trench for splicing;

[0135] 3) pouring concrete material into the concrete pouring trough 203 and the concrete pouring trough 303, and pouring concrete into the soil outside the retaining wall at the same time;

[0136] 4) After the concrete is poured, excavate the soil inside the retaining wall.

[0137] Furthermore, the underground retaining wall trench excavation system 1 includes a power and transmission system 101 , an excavation system 102 and a frame system 103 .

[0138] The power and transmission system 101 includes an engine Ⅰ 1011, a steel cable 1012, a pulley 1013, and a steel cable take-up drum 1014.

[0139] The engine I 1011 is connected to a steel cable 1012 to control the movement of the cable and the lifting and lowering of the excavation system 102 .

[0140] The steel cable 1012 is connected to a steel cable take-up drum 1014 and is connected to the excavation system 103 via a pulley 1013 .

[0141] The excavation system 102 includes an engine II 1021 and an excavation cutter head assembly 1022 .

[0142] The engine II 1021 is used to drive the excavation cutter head assembly 1022 for excavation.

[0143] The excavating cutterhead assembly 1022 is composed of a plurality of cutterheads and is used for excavating underground retaining wall trenches.

[0144] The frame system 103 is composed of a steel truss and is placed at the excavation working surface when in use. The steel cable take-up drum 1014 and the engine I 1011 are located inside the frame system 103, and the steel cable 1012 and the pulley 1013 are fixed on the frame system 103.

[0145] When the underground retaining wall trench excavation system 1 is used, the engine I 1011 controls the movement of the cable and the lifting and lowering of the excavation system 102, and the engine II 1021 is used to drive the excavation cutter head group 1022 for excavation.

[0146] Embodiment 13:

[0147] The main structure of this embodiment is the same as any one of Embodiments 1 to 12. Furthermore, this embodiment discloses a compressible prefabricated retaining wall based on honeycomb bionics, including a plurality of rectangular prefabricated underground retaining walls 2 and an L-shaped prefabricated underground retaining wall 3.

[0148] See also Figure 2 and Figure 4 ,in Figure 2 is a schematic diagram of the rectangular prefabricated underground retaining wall 2, Figure 4 It is a schematic diagram of the L-shaped prefabricated underground retaining wall 3. The rectangular prefabricated underground retaining wall 2 is composed of a rectangular compressible cushion layer 201 and a rectangular concrete retaining wall 202. The rectangular compressible cushion layer 201 is made of basalt fiber concrete material, and the rectangular concrete retaining wall 202 is cast in advance by ordinary concrete.

[0149] The rectangular concrete retaining wall 202 is provided with a horizontal splicing component I and a horizontal splicing component II on the left and right sides respectively. The horizontal splicing component I is a vertical rectangular strip I, and the horizontal splicing component II is a vertical rectangular groove I. The vertical rectangular strip I of the horizontal splicing component I and the vertical rectangular groove I of the horizontal splicing component II correspond to each other in size.

[0150] The upper and lower sides of the rectangular concrete retaining wall 202 are respectively provided with a vertical splicing component I and a vertical splicing component II. The vertical splicing component I is located on the upper side of the rectangular concrete retaining wall 202 and is two raised rectangular blocks. The vertical splicing component II is located on the lower side of the rectangular concrete retaining wall 202 and is two rectangular grooves. The rectangular blocks and rectangular grooves of the vertical splicing component I and the vertical splicing component II correspond to each other in position and size.

[0151] The L-shaped prefabricated underground retaining wall 3 is composed of an L-shaped compressible cushion layer 301 and an L-shaped concrete retaining wall 302. The L-shaped compressible cushion layer 301 is made of basalt fiber concrete material, and the L-shaped concrete retaining wall 302 is cast in advance by ordinary concrete.

[0152] The L-shaped concrete retaining wall 302 is provided with a horizontal splicing component III and a horizontal splicing component IV at the two ends of the L shape, respectively. The horizontal splicing component III is a vertical rectangular bar II, and the horizontal splicing component IV is a vertical rectangular groove II. The vertical rectangular bar II of the horizontal splicing component III and the vertical rectangular groove II of the horizontal splicing component IV correspond to each other in size, and the vertical rectangular bar II corresponds to the vertical rectangular bar I in size, and the vertical rectangular groove II corresponds to the vertical rectangular groove I in size.

[0153] The upper and lower sides of the L-shaped concrete retaining wall 302 are respectively provided with a vertical splicing component III and a vertical splicing component IV. The vertical splicing component III is located on the upper side of the L-shaped concrete retaining wall 302 and is three protruding blocks. The vertical splicing component IV is located on the lower side of the L-shaped concrete retaining wall 302 and is three grooves. The protruding blocks and grooves of the vertical splicing component III and the vertical splicing component IV correspond to each other in position and size.

[0154] See also Figure 3 and Figure 5 ,in Figure 3 is a cross-sectional view of the rectangular prefabricated underground retaining wall 2, Figure 5 It is a cross-sectional view of the L-shaped prefabricated underground retaining wall 3. A concrete casting trough I203 is provided in the middle of the rectangular concrete retaining wall 202. Each rectangular prefabricated underground retaining wall 2 is provided with three concrete casting troughs I203, which are evenly distributed from the horizontal splicing component I to the horizontal splicing component II and pass through the rectangular concrete retaining wall 202 in a vertical direction.

[0155] The concrete pouring troughs 1203 are all distributed in the rectangular concrete retaining wall 202. Ordinary silicate concrete is poured in the concrete pouring troughs 1203, and the concrete pouring is completed during construction.

[0156] A concrete casting trough II303 is provided in the middle of the L-shaped concrete retaining wall 302. Each L-shaped prefabricated underground retaining wall 3 is provided with two concrete casting troughs 303, which are distributed along the L shape from the horizontal splicing component III to the horizontal splicing component IV and pass through the L-shaped concrete retaining wall 302 in the vertical direction.

[0157] The concrete pouring troughs II303 are all distributed in the L-shaped concrete retaining wall 302. Ordinary silicate concrete is poured in the concrete pouring troughs II303, and the concrete pouring is completed during construction.

[0158] Figure 6The detailed structural diagram of the rectangular compressible cushion layer 201 and the L-shaped compressible cushion layer 301 is shown. The compressible cushion layer is made of basalt fiber concrete material, which has the advantages of environmentally friendly production and strong compressibility. The use of the compressible cushion layer can increase the toughness of the retaining wall and effectively reduce the maximum lateral displacement of the retaining wall.

[0159] When using a prefabricated retaining wall, it is necessary to first dig out a trench for installing the prefabricated retaining wall, and install a number of rectangular prefabricated underground retaining walls 2 and L-shaped prefabricated underground retaining walls 3 according to actual needs. During installation, the rectangular prefabricated underground retaining walls 2 adjacent to each other in the horizontal direction are spliced ​​by horizontal splicing components I and horizontal splicing components II, the rectangular prefabricated underground retaining walls 2 and L-shaped prefabricated underground retaining walls 3 adjacent to each other in the horizontal direction are spliced ​​by horizontal splicing components II and horizontal splicing components III or horizontal splicing components I and horizontal splicing components IV, the rectangular prefabricated underground retaining walls 2 in the vertical direction are spliced ​​by vertical splicing components I and vertical splicing components II, and the L-shaped prefabricated underground retaining walls 3 in the vertical direction are spliced ​​by vertical splicing components III and vertical splicing components IV;

[0160] Afterwards, concrete is poured into the concrete pouring troughs of the rectangular underground precast retaining wall and the L-shaped underground precast retaining wall. After the concrete is poured and formed, the soil inside the retaining wall is excavated.

[0161] The honeycomb bionic compressible prefabricated retaining wall described in this embodiment can effectively speed up the construction speed and shorten the construction period, can be adjusted according to actual requirements, and has strong applicability.

[0162] The method for using the honeycomb bionic compressible prefabricated retaining wall comprises the following steps:

[0163] 1) Install underground retaining wall trench excavation system 1;

[0164] 2) using a trench excavation system to excavate a trench to a required depth and length according to design requirements, and then lowering a plurality of rectangular prefabricated underground retaining walls 2 and an L-shaped prefabricated underground retaining wall 3 into the trench for splicing;

[0165] 3) Pour concrete into the concrete pouring trough I203 and the concrete pouring trough II303, and pour concrete into the soil outside the retaining wall at the same time;

[0166] 4) After the concrete is poured, excavate the soil inside the retaining wall.

[0167] See also Figure 1 The underground retaining wall trench excavation system 1 includes a power and transmission system 101, an excavation system 102, and a frame system 103.

[0168] The power and transmission system 101 includes an engine Ⅰ 1011, a steel cable 1012, a pulley 1013, and a steel cable take-up drum 1014.

[0169] The engine I 1011 is connected to a steel cable 1012 to control the movement of the cable and the lifting and lowering of the excavation system 102 .

[0170] The steel cable 1012 is connected to a steel cable take-up drum 1014 and is connected to the excavation system 103 via a pulley 1013 .

[0171] The excavation system 102 includes an engine II 1021 and an excavation cutter head assembly 1022 .

[0172] The engine II 1021 is used to drive the excavation cutter head assembly 1022 for excavation.

[0173] The excavating cutterhead assembly 1022 is composed of a plurality of cutterheads and is used for excavating underground retaining wall trenches.

[0174] The frame system 103 is composed of a steel truss and is placed at the excavation working surface when in use. The steel cable take-up drum 1014 and the engine I 1011 are located inside the frame system 103, and the steel cable 1012 and the pulley 1013 are fixed on the frame system 103.

[0175] When the underground retaining wall trench excavation system 1 is used, the engine I 1011 controls the movement of the cable and the lifting and lowering of the excavation system 102, and the engine II 1021 is used to drive the excavation cutter head group 1022 for excavation.

[0176] Embodiment 14:

[0177] The main structure of this embodiment is the same as any one of embodiments 1 to 13. Furthermore, basalt fiber is a new type of inorganic fiber material, which is drawn by melting natural basalt ore at high temperature. It has excellent mechanical properties, such as high strength, high modulus and good toughness, and also has the advantages of corrosion resistance, high temperature resistance and low conductivity. Due to these characteristics of basalt fiber, it performs well in complex underground environments and can effectively resist rust and electrochemical corrosion.

[0178] Drawing on the idea of ​​honeycomb bionics, basalt fiber is added to concrete to obtain basalt fiber concrete material, which is used to make a honeycomb compressible cushion. This can not only reduce the displacement of the retaining wall caused by excessive lateral earth pressure, but also absorb deformation energy based on the principle of honeycomb structure, reduce the possibility of cracking of the internal retaining wall, and extend the service life of the structure.

Claims

1. A compressible prefabricated retaining wall based on honeycomb bionics, characterized by: It comprises a plurality of rectangular prefabricated underground retaining walls (2) and an L-shaped prefabricated underground retaining wall (3) which are spliced ​​together; The rectangular prefabricated underground retaining wall (2) comprises a rectangular compressible cushion layer (201) and a rectangular concrete retaining wall (202); The rectangular concrete retaining wall (202) has six faces, the face connected to the rectangular compressible cushion layer (201) is recorded as face A, the face opposite to face A is recorded as face B, and the remaining four end faces are recorded as end face C, end face D, end face E and end face F in sequence; The end surface C is provided with a flange I (204); The end surface E is provided with a mounting groove I (205); A plurality of flanges II (206) are provided at intervals on the end surface D; A plurality of installation grooves II (207) are provided on the end surface F at intervals; The L-shaped prefabricated underground retaining wall (3) comprises an L-shaped compressible cushion layer (301) and an L-shaped concrete retaining wall (302); The L-shaped concrete retaining wall (302) has six faces, the face connected to the L-shaped compressible cushion layer (301) is recorded as the G face, the face opposite to the G face is recorded as the H face, and the remaining four end faces are recorded as the end face I, the end face J, the end face K and the end face L in sequence; The end surface I is provided with a flange III (304); The end surface K is provided with a mounting groove III (305); A plurality of flanges IV (306) are provided at intervals on the end surface J; A plurality of mounting grooves IV (307) are provided on the end surface L at intervals; A plurality of concrete pouring holes I (203) and concrete pouring holes II (303) are respectively arranged at intervals inside the rectangular concrete retaining wall (202) and the L-shaped concrete retaining wall (302); When splicing, in the transverse direction of the retaining wall, adjacent rectangular prefabricated underground retaining walls (2) are spliced ​​through flange I (204) and installation groove I (205), and adjacent rectangular prefabricated underground retaining walls (2) and L-shaped prefabricated underground retaining walls (3) are spliced ​​through flange I (204) and installation groove III (305); in the longitudinal direction of the retaining wall, adjacent rectangular prefabricated underground retaining walls (2) are spliced ​​through flange II (206) and installation groove II (207), and adjacent L-shaped prefabricated underground retaining walls (3) are spliced ​​through flange IV (306) and installation groove IV (307).

2. The compressible prefabricated retaining wall based on honeycomb bionics according to claim 1 is characterized by: The rectangular compressible cushion layer (201) and the L-shaped compressible cushion layer (301) are made of basalt fiber concrete material; The rectangular concrete retaining wall (202) and the L-shaped concrete retaining wall (302) are formed by pouring concrete.

3. The honeycomb bionic compressible prefabricated retaining wall according to claim 1 is characterized by: The cross-sections of the rectangular compressible cushion layer (201) and the L-shaped compressible cushion layer (301) are honeycomb structures.

4. The compressible prefabricated retaining wall based on honeycomb bionics according to claim 1 is characterized by: The setting position of the flange I (204) corresponds to the opening position of the installation groove I (205) and the installation groove III (305), and the size of the flange I (204) is compatible with the size of the installation groove I (205) and the installation groove III (305). The setting position of the flange II (206) corresponds to the opening position of the installation groove II (207), and the size of the flange II (206) is compatible with the size of the installation groove II (207); The setting position of the flange III (304) corresponds to the opening position of the installation groove I (205), and the size of the flange III (304) is compatible with the size of the installation groove I (205); The setting position of the flange IV (306) corresponds to the opening position of the installation groove IV (307), and the size of the flange IV (306) is compatible with the size of the installation groove IV (307).

5. The compressible prefabricated retaining wall based on honeycomb bionics according to claim 1 is characterized by: The cross-sectional shapes of the G surface, the H surface, the end surface J and the end surface L of the L-shaped prefabricated underground retaining wall (3) are all L-shaped.

6. The honeycomb bionic compressible prefabricated retaining wall according to claim 1, characterized in that: The concrete pouring hole I (203) and the flange II (206) are arranged at intervals; The concrete pouring hole II (303) and the flange IV (306) are spaced apart.

7. The compressible prefabricated retaining wall based on honeycomb bionics according to claim 1 is characterized by: The concrete pouring hole I (203) is arranged in the same direction as the flange I (204), and both are arranged along the longitudinal direction of the rectangular concrete retaining wall (202); The setting direction of the concrete pouring hole II (303) is the same as the setting direction of the flange III (304), and both are arranged along the longitudinal direction of the L-shaped concrete retaining wall (302).

8. The honeycomb bionic compressible prefabricated retaining wall according to claim 1 is characterized by: The openings of the concrete pouring holes I (203) of the upper and lower rectangular concrete retaining walls (202) are aligned; The openings of the concrete pouring holes II (303) of the upper and lower L-shaped concrete retaining walls (302) are aligned.

9. A method for manufacturing a honeycomb bionic compressible prefabricated retaining wall according to any one of claims 1 to 8, characterized in that: The following steps are involved: 1) Installing underground retaining wall trench excavation system (1); 2) using the underground retaining wall trench excavation system (1), excavating the underground retaining wall trench according to the design requirements, and calculating the number of required rectangular prefabricated underground retaining walls (2) and L-shaped prefabricated underground retaining walls (3); 3) After the excavation of the underground retaining wall trench is completed, the rectangular prefabricated underground retaining wall (2) and the L-shaped prefabricated underground retaining wall (3) are lowered into the trench for splicing; 4) pouring concrete in the concrete pouring hole I (203) and the concrete pouring hole II (303), and pouring concrete into the soil outside the retaining wall at the same time; 5) After the concrete is poured, excavate the soil inside the retaining wall.

10. The method for manufacturing a compressible prefabricated retaining wall based on honeycomb bionics according to claim 9, characterized in that: The underground retaining wall trench excavation system (1) comprises a power and transmission system (101), an excavation system (102) and a frame system (103). The power and transmission system (101) comprises an engine I (1011), a steel cable (1012), a pulley (1013) and a steel cable take-up drum (1014); The steel cable (1012) is wound on a steel cable take-up drum (1014), one end of which is connected to the engine I (1011), and the other end of which is fixed by a pulley (1013) and connected to the excavation system (102); The excavation system (102) comprises an excavation cutterhead assembly (1022) and an engine II (1021) for driving the excavation cutterhead assembly (1022) to excavate; The excavation cutterhead assembly (1022) comprises a plurality of cutterheads for excavating underground retaining wall trenches; The frame system (103) is a steel truss located above the underground retaining wall trench. The power and transmission system (101) and the excavation system (102) are both located inside the steel truss, and the steel cable (1012) and the pulley (103) are fixed on the steel truss.

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