Construction method of steel wire gabion protection for thick silt embankment

Abstract

The present invention relates to a method for constructing a steel gabion for protection of a deep silt embankment, comprising the following steps: forming a deep silt solidification layer; constructing cement mixing piles; then excavating the back-excavation area of ​​the solidification layer; cutting the cement mixing pile heads along the cement mixing pile head cutting line; setting a first layer of steel gabion positioning edges and pre-embedded positioning ribs on the concrete cushion layer; installing a first steel gabion positioning guide frame; then completing the construction of the first layer of steel gabions and the first layer of steel gabion backfill soil by auxiliary filling steel plate box units; and sequentially completing the second steel gabion and the third steel gabion. The present invention has the following beneficial effects: using steel gabions with side steel meshes to assist in filling and hoisting steel plate boxes, and by arranging steel plate box side steel meshes on the upper part of the side steel plates of the steel plate boxes, the friction force during the hoisting of adjacent steel plate boxes can be effectively reduced; the steel gabion positioning guide frame determines the position of the steel gabions and also plays a role in preventing displacement.

Description

Technical Field

[0001] The invention belongs to the technical field of embankment protection engineering, and in particular relates to a construction method for steel wire gabion protection of a deep silt embankment. Background Art

[0002] Due to the characteristics of deep soft soil and silt layers, embankments in soft soil areas suffer from settlement and instability, seriously affecting the quality and lifespan of the embankments and increasing maintenance costs. Soft soil and silt replacement treatment involves excavating the silt and soft soil that affects roadbed stability within a certain range, backfilling with stable soil and rock, and compacting or tamping it, to create a sound artificial foundation. However, this replacement treatment is labor-intensive and material-intensive, and the accumulation of the replaced silt affects the project's appearance.

[0003] Shallow solidification creates a soil layer with improved mechanical strength, addressing the drawbacks of the backfill method. However, shallow solidification alone is still insufficient for embankment construction. Constructing cement-mixed piles within the shallow solidification zone to form a composite embankment bearing structure can lead to problems such as excessive solidification layer hardness, difficulty in driving, and slow pile head cutting. Furthermore, existing methods for constructing embankment steel gabion protection suffer from low construction efficiency and displacement of the gabions during backfill and compaction. Summary of the Invention

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a construction method for steel wire gabion protection of deep silt embankments.

[0005] This method of steel wire gabion protection construction for deep silt embankments includes the following steps:

[0006] Step 1: Adding a curing agent to the upper solidified layer of the silt original soil to form a thick silt solidified layer;

[0007] Step 2: Use the cement mixing pile drilling device and the cement mixing pile reserved hole device to construct the cement mixing pile; then carry out the excavation construction of the solidified layer back-excavation area;

[0008] Step 3: Fix the cement mixing pile cutting device on the cement mixing pile head through the cement mixing pile head fixing frame, cut the cement mixing pile head along the cement mixing pile head cutting line, and level the surface of the thick silt solidified layer after excavation of the solidified layer back-excavation area after cutting;

[0009] Step 4: Construct a concrete cushion layer on the location of the thick silt solidification layer, and set the first layer of wire gabion positioning edges and embedded positioning bars on the concrete cushion layer;

[0010] Step 5: Install the first wire gabion positioning guide frame, and then complete the construction of the first layer of wire gabion and the first layer of wire gabion backfill through the auxiliary filling steel plate box unit;

[0011] Step 6: Install the second wire gabion positioning guide frame, and then complete the construction of the second layer of wire gabion and the second layer of wire gabion backfill through the auxiliary filling steel plate box unit;

[0012] Step 7: Install the third wire gabion positioning guide frame, and then complete the construction of the third layer of wire gabion and the third layer of wire gabion backfill soil through the auxiliary filling steel plate box unit.

[0013] Preferably, step two is as follows: before the thick silt solidification layer initially solidifies, a cement mixing pile drilling device is used to drill a cement mixing pile reserved hole, and the cement mixing pile reserved hole device is driven in; after the thick silt solidification layer initially solidifies, the cement mixing pile reserved hole device is taken out, and then the cement mixing pile construction is carried out; after the cement mixing pile construction is completed and reaches a certain strength, the excavation construction of the solidification layer back-excavation area is carried out.

[0014] Preferably, step three is specifically as follows: a cement mixing pile head cutting line is set at the position to be cut of the cement mixing pile head, a cement mixing pile cutting device is fixed on the cement mixing pile head through a cement mixing pile head fixing frame, a cement mixing pile head cutting tool is set on a cement mixing pile head cutting tool telescopic frame, the cement mixing pile head cutting tool and the cement mixing pile head cutting line are on the same horizontal plane, and the cement mixing pile head cutting tool telescopic frame is connected to a cement mixing pile head cutting machine starting device;

[0015] Start the starting device of the cement mixing pile head cutting machine and mobilize the telescopic frame of the cement mixing pile head cutting tool so that the cement mixing pile head cutting tool cuts the cement mixing pile head along the cement mixing pile head cutting line; after the cement mixing pile head cutting is completed, the surface of the solidification area site is leveled.

[0016] Preferably, in step three: the cement mixing pile head is cut simultaneously by using multiple cement mixing pile cutting devices.

[0017] Preferably, the auxiliary filling steel plate box unit is composed of several auxiliary filling steel plate boxes; the auxiliary filling steel plate box includes a steel plate box bottom steel plate and a steel plate box side steel plate; a steel plate box side steel mesh is provided on the upper portion of the steel plate box side steel plate, and steel plate box lifting lugs are provided on the upper portion of the steel plate box front steel plate and the steel plate box back steel plate, and the auxiliary filling steel plate box unit is connected to the steel plate box lifting mechanism through the steel plate box lifting lugs;

[0018] A wire gabion box is placed in each auxiliary filling steel plate box in the auxiliary filling steel plate box unit; the wire gabion box includes a wire mesh at the bottom of the wire gabion, a wire mesh on the side of the wire gabion and a wire mesh on the top of the wire gabion. The wire mesh at the bottom of the wire gabion, the wire mesh on the side of the wire gabion and the wire mesh on the top of the wire gabion are connected by long steel wires twisted in the wire gabion box, among which only one side of the wire mesh on the top of the wire gabion is connected to the wire mesh on the side of the wire gabion through the long steel wires twisted in the wire gabion box. The wire gabion box has a box-shaped structure with an openable and closable top.

[0019] As a preferred embodiment, step five is specifically as follows: after the construction and maintenance of the concrete cushion layer is completed, the first wire gabion positioning guide frame is installed according to the positioning edge and embedded positioning reinforcement of the first layer of wire gabion, and then the hoisting construction of the auxiliary filling steel plate box unit is carried out corresponding to the first wire gabion positioning guide frame; a wire gabion mesh box is placed in each auxiliary filling steel plate box, and then gravel is hoisted into the wire gabion mesh box to form the first unit of the first layer of wire gabion, and then the backfill and tamping construction of the first unit of the first layer of wire gabion backfill soil is carried out on the back of the first layer of wire gabion; the cycle is repeated many times to complete the construction of the first layer of wire gabion and the first layer of wire gabion backfill soil.

[0020] Preferably, step six is ​​specifically as follows: after the construction of the first layer of wire gabion backfill is completed, the second wire gabion positioning guide frame is installed, and then the auxiliary filling steel plate box unit is hoisted corresponding to the second wire gabion positioning guide frame, and a wire gabion mesh box is placed in each auxiliary filling steel plate box; then gravel is hoisted into the wire gabion mesh box to form the first unit of the second layer of wire gabion, and then the backfill and tamping construction of the first unit of the second layer of wire gabion backfill is carried out on the back of the second layer of wire gabion; the cycle is repeated many times to complete the construction of the second layer of wire gabion and the second layer of wire gabion backfill.

[0021] Preferably, step seven is specifically as follows: after the construction of the second layer of wire gabion backfill is completed, the third wire gabion positioning guide frame is installed, and then the auxiliary filling steel plate box unit is hoisted corresponding to the third wire gabion positioning guide frame, and then the wire gabion mesh box is placed in each auxiliary filling steel plate box; gravel is hoisted into the wire gabion mesh box to form the first unit of the third layer of wire gabion, and then the backfill and tamping construction of the first unit of the third layer of wire gabion backfill is carried out on the back of the third layer of wire gabion; the cycle is repeated many times to complete the construction of the third layer of wire gabion and the third layer of wire gabion backfill.

[0022] A steel wire gabion protective structure for a deep silt embankment, obtained by any of the above methods.

[0023] The beneficial effects of the present invention are:

[0024] 1) The present invention adopts the technology of pre-hole cement mixing pile for in-situ solidification of thick silt. By setting a pre-hole device before the initial setting of the silt solidification layer, it effectively solves the problem that the hardness of the silt solidification layer after hardening is too high, which makes the subsequent cement mixing pile construction difficult.

[0025] 2) The present invention adopts a quick cutting device for cement mixing piles for earth excavation, and the pile heads of multiple cement mixing piles can be cut synchronously, which greatly improves the pile head cutting efficiency.

[0026] 3) The present invention adopts a wire gabion with a steel mesh on the side to assist in filling and hoisting the steel plate box. By arranging the steel mesh on the upper part of the steel plate on the side of the steel plate box, the friction force when the adjacent steel plate boxes are hoisted can be effectively reduced, thereby improving the hoisting efficiency of the steel plate box.

[0027] 4) The first layer of the gabion of the present invention is positioned by the gabion positioning edge and the embedded positioning reinforcement in combination with the gabion positioning guide frame. The gabion positioning guide frame also plays a role in preventing displacement when backfilling soil and tamping are carried out on the back of the gabion. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of a cement mixing pile drilling device;

[0029] Figure 2 This is a schematic diagram of the reserved hole structure for in-situ solidification of thick silt;

[0030] Figure 3 This is a schematic diagram of the structure of cement mixing piles with reserved holes for in-situ solidification of thick silt;

[0031] Figure 4 This is a schematic diagram of the construction structure of the back-excavation area of ​​the cement mixing pile solidification layer;

[0032] Figure 5 This is a schematic diagram of a cement mixing pile head cutting device;

[0033] Figure 6 This is a detailed drawing of the cement mixing pile head fixing frame;

[0034] Figure 7 This is a structural diagram of the cement mixing pile head after cutting;

[0035] Figure 8 This is a schematic diagram of the surface leveling after the cement mixing pile head is cut;

[0036] Figure 9 This is a schematic diagram of the expanded wire gabion box;

[0037] Figure 10 This is a schematic diagram of the wire gabion box structure;

[0038] Figure 11This is a schematic diagram of the structure of wire gabion auxiliary filling and hoisting steel plate box;

[0039] Figure 12 This is a schematic diagram of a steel plate box unit with auxiliary filling of wire gabion;

[0040] Figure 13 This is a structural diagram of the first wire gabion positioning guide frame;

[0041] Figure 14 This is a schematic diagram of the construction structure of the first layer of wire gabion;

[0042] Figure 15 This is a schematic diagram of the construction structure of the first layer of wire gabion backfill soil;

[0043] Figure 16 This is a structural diagram of the second wire gabion positioning guide frame;

[0044] Figure 17 This is a schematic diagram of the construction structure of the second layer of wire gabion;

[0045] Figure 18 This is a schematic diagram of the construction structure of the second layer of wire gabion backfill soil;

[0046] Figure 19 This is a schematic diagram of the structure of the third wire gabion positioning guide frame;

[0047] Figure 20 This is a schematic diagram of the construction structure of the third layer of wire gabion;

[0048] Figure 21 This is a schematic diagram of the construction structure of the third layer of wire gabion backfill soil.

[0049] In the figure: 1- original soil, 2- added curing agent, 3- thick silt solidified layer, 4- reserved hole for cement mixing pile, 5- reserved hole device for cement mixing pile, 6- drilling device for cement mixing pile, 7- cement mixing pile, 8- counter-excavation area of ​​solidified layer, 9- cement mixing pile head, 10- cement mixing pile after pile head cutting, 11- cement mixing pile head fixing frame, 12- cement mixing pile head cutting fixing hoop, 13- pile head cutting hoop ear, 14- pile head cutting hoop docking hole, 15- pile head cutting hoop docking bolt, 16- cement mixing pile head cutting line, 17- cement mixing pile head cutting tool, 18- telescopic frame for cement mixing pile head cutting tool, 19- starting device of cement mixing pile head cutting machine, 20- steel wire gabion box, 21- long twisted steel wire of steel wire gabion box, 22- steel wire mesh on the bottom surface of steel wire gabion , 23-wire mesh on the side of the steel cage, 24-wire mesh on the top of the steel cage, 25-auxiliary filling steel plate box unit, 26-auxiliary filling steel plate box, 27-steel plate box bottom steel plate, 28-steel plate box side steel plate, 29-steel plate box side steel mesh, 30-steel plate box front steel plate, 31-steel plate box back steel plate, 32-steel plate box lifting ear, 33-steel plate box lifting mechanism, 34-concrete cushion, 35-first One layer of wire gabion positioning edge, 36-embedded positioning reinforcement, 37-first layer of wire gabion, 38-first wire gabion positioning guide frame, 39-first layer of wire gabion backfill, 40-second layer of wire gabion, 41-second wire gabion positioning guide frame, 42-second layer of wire gabion backfill, 43-third layer of wire gabion, 44-third wire gabion positioning guide frame, 45-third layer of wire gabion backfill. DETAILED DESCRIPTION

[0050] The present invention will be further described below with reference to the following examples. The following examples are provided only to facilitate understanding of the present invention. It should be noted that, without departing from the principles of the present invention, it is possible for a person skilled in the art to make various modifications to the present invention, and such improvements and modifications fall within the scope of the claims of the present invention.

[0051] Example 1

[0052] As an embodiment, step 1, construction of a solidified layer of silty undisturbed soil 1: adding a solidifying agent 2 to the upper solidified layer of the silty undisturbed soil 1 to form a thick silt solidified layer 3.

[0053] Step 2, construction of cement mixing pile pre-hole device 6 and cement mixing pile 7: before the thick silt solidified layer 3 initially sets, use the cement mixing pile drilling device 6 to drill the cement mixing pile pre-hole 4, and insert the cement mixing pile pre-hole device 5. After the thick silt solidified layer 3 initially sets, take out the cement mixing pile pre-hole device 5, and then carry out the construction of cement mixing pile 7.

[0054] Step 3: Excavation of the solidified layer counter-excavation area 8: After the cement mixing piles 7 are completed and reach a certain strength, excavation of the solidified layer counter-excavation area 8 is carried out.

[0055] Step 4, cement mixing pile head 9 cutting construction: after the excavation construction of the solidified layer back-excavation area 8 is completed, a cement mixing pile head cutting line 16 is set at the position to be cut of the cement mixing pile head 9, the cement mixing pile cutting device is fixed on the cement mixing pile head 9 by the cement mixing pile head fixing frame 11, the cement mixing pile head cutting tool 17 is set on the cement mixing pile head cutting tool telescopic frame 18, the cement mixing pile head cutting tool 17 and the cement mixing pile head cutting line 16 are on the same horizontal plane, the cement mixing pile head cutting tool telescopic frame 18 is connected to the cement mixing pile head cutting machine starting device 19, after starting the cement mixing pile head cutting machine starting device 19, the cement mixing pile head cutting tool telescopic frame 18 is mobilized so that the cement mixing pile head cutting tool 17 cuts the cement mixing pile head 9 along the cement mixing pile head cutting line 16, and the cement mixing pile head 9 can be cut simultaneously using multiple cutting devices.

[0056] Step 5: Leveling the curing area: After the cement mixing pile heads 9 are cut, the surface of the curing area is leveled.

[0057] Step 6: Construction of concrete cushion layer 34: Concrete cushion layer 34 is constructed at a predetermined position on the leveled ground. The first layer of wire gabion positioning edges 35 are set on the concrete cushion layer 34 and positioning bars 36 are embedded in advance.

[0058] Step 7. Construction of the first layer of wire gabion 37 and the first layer of wire gabion backfill 39: After the construction and maintenance of the concrete cushion layer 34 are completed, the first wire gabion positioning guide frame 38 is installed, and then the auxiliary filling steel plate box unit 25 is hoisted corresponding to the first wire gabion positioning guide frame 38. After the hoisting construction of the auxiliary filling steel plate box unit 25 is completed, a matching wire gabion mesh box 20 is placed in each auxiliary filling steel plate box 26, and then gravel is hoisted into the wire gabion mesh box 20. Then, backfill and tamping construction of the first unit of the first layer of wire gabion backfill 39 are carried out, and the construction of the first layer of wire gabion 37 and the first layer of wire gabion backfill 39 is completed in sequence for multiple cycles.

[0059] Step 8. Construction of the second layer of wire gabion 40 and the second layer of wire gabion backfill 42: After the construction of the first layer of wire gabion backfill 39 is completed, the second wire gabion positioning guide frame 41 is installed, and then the auxiliary filling steel plate box unit 25 is hoisted corresponding to the second wire gabion positioning guide frame 41. After the hoisting construction of the auxiliary filling steel plate box unit 25 is completed, a matching wire gabion mesh box 20 is placed in each auxiliary filling steel plate box 26, and then gravel is hoisted into the wire gabion mesh box 20. Then, backfill and tamping construction of the first unit of the second layer of wire gabion backfill 42 are carried out, and the construction of the second layer of wire gabion 40 and the second layer of wire gabion backfill 42 is completed in sequence for multiple cycles.

[0060] Step nine, construction of the third layer of wire gabion 43 and the third layer of wire gabion backfill 45: after the construction of the second layer of wire gabion backfill 42 is completed, the third wire gabion positioning guide frame 44 is installed, and then the auxiliary filling steel plate box unit 25 is hoisted corresponding to the third wire gabion positioning guide frame 44. After the hoisting construction of the auxiliary filling steel plate box unit 25 is completed, a matching wire gabion mesh box 20 is placed in each auxiliary filling steel plate box 26, and then gravel is hoisted into the wire gabion mesh box 20. Then, backfill and tamping construction of the first unit of the third layer of wire gabion backfill 45 are carried out, and the construction of the third layer of wire gabion 43 and the third layer of wire gabion backfill 45 is completed in sequence for multiple cycles.

[0061] Example 2

[0062] As another example, Figures 1 to 21 As shown, a steel wire gabion protective structure for a deep silt embankment obtained in Example 1 includes: cement mixing piles 7, steel wire gabions, and steel wire gabion backfill soil; a deep silt solidified layer 3 is located on the upper part of the silty undisturbed soil 1, the cement mixing piles 7 are arranged between the deep silt solidified layer 3 and the silt undisturbed soil 1, the tops of the cement mixing piles 7 are flush with the surface of the deep silt solidified layer 3, and a concrete cushion layer 34 is provided on the surface of the deep silt solidified layer 3; a first layer of steel wire gabion positioning edges 35 and pre-embedded positioning bars 36 are provided on the concrete cushion layer 34;

[0063] like Figure 1 and Figure 2 As shown, a curing agent 2 is added to the upper solidified layer of the silty original soil 1 to form a thick silt solidified layer 3. Before the thick silt solidified layer 3 initially sets, a cement mixing pile drilling device 6 is used to drill a cement mixing pile reserved hole 4, and a cement mixing pile reserved hole device 5 is driven into the cement mixing pile. After the thick silt solidified layer 3 initially sets, the cement mixing pile reserved hole device 5 is taken out, and then the cement mixing pile 7 is constructed.

[0064] like Figures 3 to 8As shown, a solidification layer counter-excavation area 8 is provided on the upper part of the deep silt solidification layer 3. After the excavation of the solidification layer counter-excavation area 8, the cement mixing pile head 9 of the cement mixing pile 7 is exposed on the surface of the deep silt solidification layer 3, and a cement mixing pile head cutting line 16 is provided on the cement mixing pile head 9. A cement mixing pile cutting device is fixed on the cement mixing pile head 9 through a cement mixing pile head fixing frame 11; the cement mixing pile head fixing frame 11 includes a cement mixing pile head cutting and fixing ring hoop 12, and two cement mixing pile head cutting and fixing ring hoops 12 are connected around the cement mixing pile head 9. A pile head cutting ring hoop ear 13 is provided on the outer side of the cement mixing pile head cutting and fixing ring hoop 12; the two cement mixing pile head cutting and fixing ring hoops 12 are both provided with a pile head cutting ring hoop docking hole 14 at the docking position, and the pile head cutting ring hoop docking holes 14 of the two cement mixing pile head cutting and fixing ring hoops 12 are connected and fixed by a pile head cutting ring hoop docking bolt 15.

[0065] The cement mixing pile cutting device includes a cement mixing pile head cutting tool 17, a cement mixing pile head cutting tool telescopic frame 18, and a cement mixing pile head cutting machine starting device 19. The cement mixing pile head cutting tool 17 is mounted on the cement mixing pile head cutting tool telescopic frame 18, and the cement mixing pile head cutting tool 17 is aligned with the cement mixing pile head cutting line 16. The cement mixing pile head cutting tool telescopic frame 18 is connected to the cement mixing pile head cutting machine starting device 19. After the cement mixing pile head cutting machine starting device 19 is started, the cement mixing pile head cutting tool telescopic frame 18 is mobilized so that the cement mixing pile head cutting tool 17 cuts the cement mixing pile head 9 along the cement mixing pile head cutting line 16. The cement mixing pile head 9 can be cut simultaneously using multiple cutting devices.

[0066] like Figures 14 to 21 As shown, a first layer of wire gabions 37 is provided between the embedded positioning bars 36, a first layer of wire gabion backfill 39 is provided on the back of the first layer of wire gabions 37, a second layer of wire gabion 40 and a second layer of wire gabion backfill 42 are provided above the first layer of wire gabions 37 and the first layer of wire gabion backfill 39, and a third layer of wire gabion 43 and a third layer of wire gabion backfill 45 are provided above the second layer of wire gabions 40 and the second layer of wire gabion backfill 42; the first layer of wire gabions 37, the second layer of wire gabions 40 and the third layer of wire gabion backfill 43 are in a stepped shape;

[0067] like Figures 9 to 12As shown, there are also auxiliary filling steel plate box units 25 and wire gabion anti-displacement guide frames; the auxiliary filling steel plate box units 25 include wire gabion boxes 20 and auxiliary filling steel plate boxes 26, and several auxiliary filling steel plate boxes 26 are connected to each other, and each auxiliary filling steel plate box 26 is provided with a wire gabion box 20; the auxiliary filling steel plate box 26 includes the auxiliary filling steel plate box 26 consisting of a steel plate box bottom steel plate 27, a steel plate box side steel plate 28, a steel plate box side steel mesh 29, a steel plate box front steel plate 30, a steel plate box back steel plate 31 and a steel plate box lifting lug 32, a steel plate box side steel mesh 29 is provided on the upper part of the steel plate box side steel plate 28, and a steel plate box lifting lug 32 is provided on the upper part of the steel plate box front steel plate 30 and the steel plate box back steel plate 31 respectively, and the auxiliary filling steel plate box 26 is connected to a steel plate box lifting mechanism 33 through the steel plate box lifting lug 32.

[0068] The wire gabion box 20 includes a wire mesh 22 on the bottom surface of the wire gabion, a wire mesh 23 on the side surface of the wire gabion and a wire mesh 24 on the top surface of the wire gabion. The wire mesh 22 on the bottom surface of the wire gabion and the wire mesh 23 on the side surface of the wire gabion are connected to each other by the long twisted steel wires 21 of the wire gabion box. The wire mesh 24 on the top surface of the wire gabion is connected to the side surface of the wire gabion 23 by the long twisted steel wires 21 of the wire gabion box only on one side. The wire mesh 24 on the top surface of the wire gabion is an openable and closable structure.

[0069] When hoisting the wire gabion, after the hoisting construction of the auxiliary filling steel plate box unit 25 is completed, a matching wire gabion box 20 is placed in each auxiliary filling steel plate box 26, and then gravel is hoisted into the open wire gabion box 20, and then the wire mesh 24 on the top surface of the wire gabion is closed to form a wire gabion.

[0070] like Figure 13 and Figure 14 、 Figure 16 and Figure 17 、 Figure 19 and Figure 20 As shown, the wire gabion anti-displacement guide frame includes a first wire gabion positioning guide frame 38, a second wire gabion positioning guide frame 41 and a third wire gabion positioning guide frame 44. The first wire gabion positioning guide frame 38 is attached to the front side of the first layer of wire gabion 37, the second wire gabion positioning guide frame 41 is attached to the front side of the first layer of wire gabion 37 and the second layer of wire gabion 40, and the third wire gabion positioning guide frame 44 is attached to the front side of the first layer of wire gabion 37, the second layer of wire gabion 40 and the third layer of wire gabion 43.

Claims

1. A method for the construction of steel wire gabion protection for deep silt embankments, characterized in that: The following steps are involved: Step 1: Adding a solidifying agent (2) to the upper solidified layer of the silty undisturbed soil (1) to form a thick silt solidified layer (3); Step 2: Use the cement mixing pile drilling device (6) and the cement mixing pile reserved hole device (5) to construct the cement mixing pile (7); then carry out the excavation construction of the solidified layer back-excavation area (8); Step 3: Fix the cement mixing pile cutting device on the cement mixing pile head (9) through the cement mixing pile head fixing frame (11), cut the cement mixing pile head (9) along the cement mixing pile head cutting line (16), and after the cutting is completed, level the surface of the thick silt solidified layer (3) after excavation of the solidified layer back-excavation area (8); Step 4: constructing a concrete cushion layer (34) at the location of the thick silt solidification layer (3), and setting a first layer of wire gabion positioning edges (35) and embedded positioning bars (36) on the concrete cushion layer (34); Step 5: Install the first wire gabion positioning guide frame (38), and then complete the construction of the first layer of wire gabion (37) and the first layer of wire gabion backfill (39) through the auxiliary filling steel plate box unit (25); the auxiliary filling steel plate box unit (25) is composed of a plurality of auxiliary filling steel plate boxes (26); the auxiliary filling steel plate box (26) includes a steel plate box bottom steel plate (27) and a steel plate box side steel plate (28); a steel plate box side steel mesh (29) is provided on the upper part of the steel plate box side steel plate (28), and a steel plate box lifting lug (32) is provided on the upper part of the steel plate box front steel plate (30) and the steel plate box back steel plate (31); the auxiliary filling steel plate box unit (25) is connected to the steel plate box lifting mechanism (33) through the steel plate box lifting lug (32); A wire gabion box (20) is placed in each auxiliary filling steel plate box (26) in the auxiliary filling steel plate box unit (25); the wire gabion box (20) includes a wire gabion bottom surface steel mesh (22), a wire gabion side surface steel mesh (23) and a wire gabion top surface steel mesh (24); the wire gabion bottom surface steel mesh (22), the wire gabion side surface steel mesh (23) and the wire gabion top surface steel mesh (24) are connected by a wire gabion box twisted long steel wire (21), wherein only one side of the wire gabion top surface steel mesh (24) is connected to the wire gabion side surface steel mesh (23) by the wire gabion box twisted long steel wire (21); the wire gabion box (20) is a box-shaped structure with an openable top; Step 6: Install the second wire gabion positioning guide frame (41), and then complete the construction of the second layer of wire gabion (40) and the second layer of wire gabion backfill (42) through the auxiliary filling steel plate box unit (25); Step 7: Install the third wire gabion positioning guide frame (44), and then complete the construction of the third layer of wire gabion (43) and the third layer of wire gabion backfill (45) through the auxiliary filling steel plate box unit (25).

2. The method for protecting a thick mud embankment with steel wire gabion according to claim 1, characterized in that: The second step is specifically as follows: before the thick silt solidified layer (3) initially solidifies, a cement mixing pile drilling device (6) is used to drill a cement mixing pile reserved hole (4), and the cement mixing pile reserved hole device (5) is driven in; after the thick silt solidified layer (3) initially solidifies, the cement mixing pile reserved hole device (5) is taken out, and then the cement mixing pile (7) is constructed; after the cement mixing pile (7) is constructed and reaches a certain strength, the solidified layer back-excavation area (8) is excavated.

3. The method for protecting a thick mud embankment with steel wire gabion according to claim 1, characterized in that: Step three is specifically as follows: a cement mixing pile head cutting line (16) is set at the portion to be cut of the cement mixing pile head (9); a cement mixing pile cutting device is fixed to the cement mixing pile head (9) through a cement mixing pile head fixing frame (11); a cement mixing pile head cutting tool (17) is set on a cement mixing pile head cutting tool telescopic frame (18); the cement mixing pile head cutting tool (17) and the cement mixing pile head cutting line (16) are on the same horizontal plane; and the cement mixing pile head cutting tool telescopic frame (18) is connected to a cement mixing pile head cutting machine starting device (19); The cement mixing pile head cutting machine starting device (19) is started, and the cement mixing pile head cutting tool telescopic frame (18) is mobilized, so that the cement mixing pile head cutting tool (17) cuts the cement mixing pile head (9) along the cement mixing pile head cutting line (16); after the cement mixing pile head (9) is cut, the surface of the solidification area is leveled.

4. The method for protecting a thick mud embankment with steel wire gabion according to claim 3 is characterized in that: In step 3: the cement mixing pile head (9) is cut simultaneously using multiple cement mixing pile cutting devices.

5. The method for protecting a thick mud embankment with steel wire gabion according to claim 1 is characterized in that: Step five is specifically as follows: after the construction and maintenance of the concrete cushion layer (34) is completed, the first wire gabion positioning guide frame (38) is installed according to the first layer of wire gabion positioning edge (35) and the embedded positioning reinforcement (36), and then the first wire gabion positioning guide frame (38) and the auxiliary filling steel plate box unit (25) are hoisted; a wire gabion mesh box (20) is placed in each auxiliary filling steel plate box (26), and then gravel is hoisted into the wire gabion mesh box (20) to form the first unit of the first layer of wire gabion (37), and then the first unit of the first layer of wire gabion backfill (39) is backfilled and rammed on the back of the first layer of wire gabion (37); the cycle is repeated several times to complete the construction of the first layer of wire gabion (37) and the first layer of wire gabion backfill (39).

6. The method for protecting a thick mud embankment with steel wire gabion according to claim 1 is characterized in that: Step six is ​​specifically as follows: after the construction of the first layer of wire gabion backfill (39) is completed, the second wire gabion positioning guide frame (41) is installed, and then the auxiliary filling steel plate box unit (25) is hoisted corresponding to the second wire gabion positioning guide frame (41), and the wire gabion mesh box (20) is placed in each auxiliary filling steel plate box (26); then, crushed stone is hoisted into the wire gabion mesh box (20) to form the first unit of the second layer of wire gabion (40), and then the backfill and tamping construction of the first unit of the second layer of wire gabion backfill (42) is carried out on the back of the second layer of wire gabion (40); the cycle is repeated several times to complete the construction of the second layer of wire gabion (40) and the second layer of wire gabion backfill (42).

7. The method for protecting a thick mud embankment with steel wire gabion according to claim 1, characterized in that: Step seven is specifically as follows: after the construction of the second layer of wire gabion backfill (42) is completed, the third wire gabion positioning guide frame (44) is installed, and then the auxiliary filling steel plate box unit (25) is hoisted corresponding to the third wire gabion positioning guide frame (44), and then the wire gabion mesh box (20) is placed in each auxiliary filling steel plate box (26); crushed stone is hoisted into the wire gabion mesh box (20) to form the first unit of the third layer of wire gabion (43), and then the backfill and tamping construction of the first unit of the third layer of wire gabion backfill (45) is carried out on the back of the third layer of wire gabion (43); the cycle is repeated several times to complete the construction of the third layer of wire gabion (43) and the third layer of wire gabion backfill (45).

Images