Fabricated enclosure structure for silt geological elevator pit and construction method

Abstract

The invention discloses a fabricated enclosure structure for a sludge geological elevator pit and a construction method, and relates to the technical field of fabricated buildings. The fabricated enclosure structure for the silt geological elevator pit comprises stand columns, side plate bodies and a bottom plate body. The stand columns are arranged at the corners of the outer edge of the bottom plate body, and the side plate bodies are arranged between the adjacent stand columns. The side wall of the stand column is provided with an inserting protrusion, and the end face of the side plate body is provided with an inserting groove matched with the inserting protrusion. A first reinforcing mesh is arranged in the bottom plate body; an inserting column is inserted into the bottom plate body, and a connecting sleeve matched with the inserting column in a matched mode is arranged at the bottom of the side plate body; and the inserting column and the connecting sleeve can be locked through a mounting bolt. The main body parts of the stand columns, the side plate bodies and the bottom plate body are transported to a site to be assembled after being prefabricated and formed in a factory, operation such as piling and pile pulling and brick mould building is omitted, and the construction efficiency of the elevator pit enclosure is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of prefabricated buildings, and in particular to a prefabricated enclosure structure and a construction method for a silt geological elevator pit. Background Art

[0002] Silt is a special soil with different characteristics from ordinary soil. Silt soft soil has a high water content, generally greater than 40%, and has rheological and thixotropic characteristics.

[0003] The elevator pit is the part of the shaft below the lowest landing served by the car, which contains structures such as buffers, elevator stop switches, shaft light switches, power sockets and lighting.

[0004] When constructing an elevator pit on silt geology, steel sheet piles are required for enclosure, followed by brick membrane construction, and pile driving and pulling processes are required. The operation steps are time-consuming and labor-intensive, greatly affecting construction efficiency. Summary of the invention

[0005] In order to overcome the problem in the above-mentioned background technology that "the elevator pit enclosure adopts the form of on-site masonry, which will have low work efficiency", the present invention provides an assembled enclosure structure and construction method for a silt geological elevator pit.

[0006] The technical solution adopted by the present invention to solve the above technical problems is: A prefabricated enclosure structure for a mud geological elevator pit, comprising columns, side panels and a bottom plate; the columns are arranged at the corner positions of the outer edge of the bottom plate body, and the side panels are arranged between adjacent columns; the side walls of the columns are provided with plug-in protrusions, and the end faces of the side panels are provided with plug-in grooves adapted to the plug-in protrusions; a first steel mesh is provided within the bottom plate body; a plug-in column is plug-inly arranged within the bottom plate body, and a connecting sleeve adapted to the plug-in column is provided at the bottom of the side panel body; the plug-in column and the connecting sleeve can be locked by installing bolts.

[0007] As a further optimization scheme of the present invention, the first steel mesh includes two layers of first steel bars aligned one by one in a matrix shape; a first fastener and a second fastener are provided in the base plate body; the first fastener is crimped on the upper surface of the first steel bars in the upper layer, and the second fastener is abutted against the lower surface of the first steel bars in the lower layer; the bottom end of the plug-in column is vertically plugged into the first fastener and the second fastener respectively.

[0008] As a further optimization scheme of the present invention, first buckling fins are respectively provided at the left and right edge positions of the lower surface of the first buckling piece, and the two first buckling fins are respectively buckled with the two first steel bars at the outermost edge on one side of the upper position; second buckling fins are respectively provided at the middle and outer edge positions of the upper surface of the second buckling piece, and the two second buckling fins are respectively buckled with the two first steel bars at the outermost edge on one side of the lower position; third buckling fins are provided at the inner edge position of the second buckling fins, and the third buckling fins are buckled with the third first steel bar at the outermost edge on one side of the lower position.

[0009] As a further optimization scheme of the present invention, the bottom end of the plug-in column is provided with a screw-on external thread, the first fastening member is provided with a first screw hole adapted to the screw-on external thread, and the second fastening member is provided with a second screw hole adapted to the screw-on external thread.

[0010] As a further optimization scheme of the present invention, a transverse plug-in screw hole is provided on the upper part of the plug-in column, and a transverse extension tube is provided on the side wall of the connecting sleeve. The inner cavity of the extension tube is connected with the inner cavity of the connecting sleeve in a 7 shape; the plug-in bolt can penetrate the inner cavity of the extension tube and be screwed together with the plug-in screw hole.

[0011] As a further optimization solution of the present invention, the outer end surface of the extension tube is flush with the side wall of the side plate body.

[0012] As a further optimization solution of the present invention, a blind hole-shaped accommodation hole is provided on the inner wall of the connecting sleeve, and the accommodation hole and the inner cavity of the extension tube are arranged on opposite sides of the inner wall of the connecting sleeve and are coaxially arranged.

[0013] As a further optimization solution of the present invention, the accommodating hole is communicated with the inner cavity of the connecting sleeve.

[0014] As a further optimization scheme of the present invention, a second steel mesh is provided in the side plate body, and the second steel mesh includes a first transverse steel bar, a second transverse steel bar and a first longitudinal steel bar, and the first transverse steel bar, the second transverse steel bar and the first longitudinal steel bar are respectively plugged into the side wall of the connecting sleeve.

[0015] A construction method for an assembled enclosure structure for a silt geological elevator pit, the steps comprising: S1, prefabrication of the columns, the side panels and the bottom plate; S2, transporting the columns, the side panels and the bottom plate to the construction site; S3, placing the bottom plate on a foundation; S4, installing the columns upright at the corner positions outside the outer edge of the bottom plate; S5, inserting the side panels between adjacent columns, so that the side panels are pressed against the upper surface of the bottom plate, the insertion protrusions are inserted into the insertion grooves, and the insertion columns are inserted into the connecting sleeves; S6, penetrating the mounting bolts through the extension tubes and tightening them with the connecting sleeves, so that the ends of the studs of the mounting bolts away from the column heads are placed in the accommodating holes; S7, pouring concrete mortar on the upper surface of the bottom plate so that the concrete mortar covers the mounting bolts.

[0016] In summary, the present invention is beneficial in that: (1) The present invention has a simple structure and reliable functions. The main parts of the columns, side panels and bottom plate are prefabricated in the factory and then transported to the site for assembly, eliminating the operations of piling and pulling out piles and brick membrane masonry, greatly improving the construction efficiency of the elevator pit enclosure and reducing the work intensity. The columns, side panels and bottom plate are connected to each other with bolts and a small amount of concrete, which has a faster hardening speed and a more standardized operation form compared to integral casting.

[0017] (2) The vertical distance between the third buckled fin and the plug-in column is greater than the vertical distance between the second buckled fin and the plug-in column, so that the third first steel bar at the outermost edge on one side of the lower layer can apply a greater pulling force to the plug-in column and the side plate (due to the longer force arm), making it difficult for the side plate to tilt outward, thereby improving the structural strength of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present application is further described below with reference to the accompanying drawings: Figure 1 It is a schematic diagram of the top view structure of the present invention; Figure 2 It is a schematic diagram of the top view structure of the column; Figure 3 It is a schematic diagram of the top view of the structure of the side plate; Figure 4 It is a schematic diagram of the vertical section structure of the connection position between the side plate body and the bottom plate body; Figure 5 It is a schematic diagram of the connection structure between the connecting sleeve and the plug-in column; Figure 6 It is a schematic diagram of the cross-sectional top view of the connecting sleeve; Figure 7 is a schematic diagram of the structure of the first fastening member and the second fastening member; Figure 8It is a front view schematic diagram of the vertical section structure of the present invention.

[0019] Description of reference numerals: In the figure, 1. upright column; 11. column body; 12. plug-in protrusion; 2. side plate; 21. insertion groove; 211. first horizontal steel bar; 212. connecting sleeve; 2121. extension tube; 2122. receiving hole; 213. second horizontal steel bar; 214. first longitudinal steel bar; 3. Bottom plate; 301. Grouting port; 31. First steel bar; 331. Insert screw hole; 32. Second steel bar; 33. Third steel bar; 34. First fastening piece; 341. First fastening fin; 342. First extension ring; 35. Second fastening piece; 351. Second fastening fin; 352. Third fastening fin; 353. Second extension ring; 4. Install the bolts; 5. Foundation. DETAILED DESCRIPTION

[0020] Based on the above structural features of the present application, the implementation methods of the present application are further described: Reference Figure 1 The present embodiment provides an assembled enclosure structure for a mud geological elevator pit, comprising a column 1, a side plate 2 and a bottom plate 3; the column 1 is arranged at a corner position of the outer edge of the bottom plate 3, and the side plate 2 is arranged between adjacent columns 1. The columns 1, the side plates 2 and the bottom plate 3 are connected to each other in pairs to form a stable overall structure.

[0021] Reference Figure 1 to Figure 3 , a plug-in protrusion 12 is provided at the side wall of the column 1, and a plug-in groove 21 adapted to the plug-in protrusion 12 is provided at the end surface of the side plate 2. The column 1 is in the shape of a quadrangular prism as a whole, and a single column 1 is provided with a plug-in protrusion 12 fixedly connected at the adjacent two side walls, so that the column 1 and the side plates 2 on both sides thereof are respectively clamped. The column 1 and the plug-in protrusion 12 are both reinforced concrete structures and are connected by pouring as one piece.

[0022] Reference Figure 4 and Figure 5 The bottom plate body 3 is a reinforced concrete structure, and the side plate body 2 is a reinforced concrete structure. A first steel mesh is arranged in the bottom plate body 3; a plug-in column is inserted in the bottom plate body 3, and the plug-in column is fixedly connected to the first steel mesh. A connecting sleeve 212 is provided at the bottom of the side plate body 2 to adapt to the plug-in column; the plug-in column and the connecting sleeve 212 can be locked by installing bolts 4, thereby realizing the connection between the bottom plate body 3 and the side plate body 2.

[0023] Reference Figure 4 and Figure 5The first steel mesh includes two layers of first steel bars 31 aligned one above the other in a matrix shape; a first fastening piece 34 and a second fastening piece 35 are provided in the bottom plate body 3. The first fastening piece 34 and the second fastening piece 35 clamp the first steel mesh from both sides, thereby improving the ability of the plug-in column to withstand eccentric loads. The first fastening piece 34 is pressed against the upper surface of the upper first steel bar 31, and the second fastening piece 35 is abutted against the lower surface of the lower first steel bar 31; the bottom end of the plug-in column is vertically plugged with the first fastening piece 34 and the second fastening piece 35 respectively.

[0024] Reference Figure 5 and Figure 7 , the first buckle fins are respectively provided at the left and right edge positions of the lower surface of the first buckle 34, and the first buckle fins are fixedly connected to the first buckle 34 in an integrated manner. The two first buckle fins are respectively buckled with the two first steel bars 31 at the outermost edge of one side of the upper layer; the second buckle fins are respectively provided at the middle and outer edge positions of the upper surface of the second buckle 35, and the two second buckle fins are respectively buckled with the two first steel bars 31 at the outermost edge of one side of the lower layer; the third buckle fins are provided at the inner edge position of the second buckle fins, and the third buckle fins are buckled with the third first steel bar 31 at the outermost edge of one side of the lower layer. The second buckle 35, the second buckle fins and the third buckle fins are fixedly connected in an integrated manner.

[0025] Reference Figure 1 The column 1 and the side panel 2 form an integral convex polygonal structure (a local concave structure is allowed), and the column 1 and the side panel 2 are connected in a plug-in manner. Therefore, during the use of the present invention, the top of the side panel 2 is difficult to tilt inwards but easy to tilt outwards (because the column 1 can transmit the supporting force from the inner side panel 2 to the side panel 2, but it is difficult to transmit the pulling force). Figure 7 The vertical distance between the third buckled fin and the plug-in column is greater than the vertical distance between the second buckled fin and the plug-in column, so that the third first steel bar 31 at the outermost edge on one side of the lower layer can apply a greater pulling force to the plug-in column and the side panel 2 (due to the longer force arm), making it difficult for the side panel 2 to tilt outward, thereby improving the structural strength of the present invention.

[0026] The first fastening member 34, the first fastening fin, the second fastening member 35, the second fastening fin, the third fastening fin, the plug-in column and the connecting sleeve 212 are all made of steel materials, so that the present invention has excellent structural strength.

[0027] Reference Figure 7, the bottom end of the plug-in column is provided with a screw-on external thread, the first fastening member 34 is provided with a first screw hole adapted to the screw-on external thread, and the second fastening member 35 is provided with a second screw hole adapted to the screw-on external thread. The first fastening member 34 is fixedly connected with a first extension ring 342 in an integral manner, and the first screw hole penetrates the first extension ring 342; the second fastening member 35 is fixedly connected with a second extension ring 353 in an integral manner, and the second screw hole penetrates the second extension ring 353; the first extension ring 342 is used to increase the length of the first screw hole, and further increase the contact area between the first screw hole and the screw-on external thread; the second extension ring 353 is used to increase the length of the second screw hole, and further increase the contact area between the second screw hole and the screw-on external thread, so as to improve the anti-eccentric load capacity of the plug-in column and reduce the probability of the side plate body 2 tilting.

[0028] Reference Figure 5 A transverse plug-in screw hole 331 is provided on the upper part of the plug-in column. The plug-in screw hole 331 is a through hole and is arranged along the radial direction of the plug-in column. A transverse extension tube 2121 is provided on the side wall of the connecting sleeve 212. The extension tube 2121 is fixedly connected to the connecting sleeve 212 in a T-shape (for example, through an integrated fixed connection); the inner cavity of the extension tube 2121 is connected to the inner cavity of the connecting sleeve 212 in a 7-shape; the plug-in bolt can penetrate the inner cavity of the extension tube 2121 and be screwed to the plug-in screw hole 331.

[0029] Reference Figure 5 The outer end surface of the extension tube 2121 is flush with the side wall of the side plate body 2, so that when the side plate body 2 is prefabricated, the mold is used to press and seal the outer end surface of the extension tube 2121 to prevent concrete mortar from flowing into the inner cavity of the extension tube 2121 and the inner cavity of the connecting sleeve 212 during pouring.

[0030] Reference Figure 5 The inner wall of the connecting sleeve 212 is provided with a blind hole-shaped receiving hole 2122, and the receiving hole 2122 and the inner cavity of the extension tube 2121 are respectively arranged on opposite sides of the inner wall of the connecting sleeve 212 and are coaxially arranged. The mounting bolt 4 includes a stud and a column head that are fixedly connected in one piece, and the receiving hole 2122 is used to accommodate the end of the stud away from the column head. The purpose is: under the premise that the stud can penetrate the plug-in column (in the penetration state, the stud and the plug-in column are connected in a cross shape; in the non-penetration state, the stud and the plug-in column are connected in a T shape; when the side plate body 2 is subjected to a tilting force, the cross-shaped connection structure has better stability than the T-shaped connection structure), the distance between the column head and the plug-in column can be reduced as much as possible by tightening the mounting bolt 4, so that the pig head and the plug-in column clamp the side wall of the connecting sleeve 212 from both sides (such as Figure 5 From the perspective shown, the plug-in column presses the left side wall of the inner cavity of the connecting sleeve 212 as tightly as possible to avoid a gap between the plug-in column and the left side wall of the inner cavity of the connecting sleeve 212), thereby preventing the side panel 2 from shaking, further reducing the wear of the concrete caused by the shaking, thereby improving the structural stability and service life of the present invention.

[0031] Reference Figure 5 The accommodating hole 2122 is communicated with the inner cavity of the connecting sleeve 212 .

[0032] Reference Figure 5 and Figure 6 A second steel mesh is provided in the side plate body 2, and the second steel mesh includes a first transverse steel bar 211, a second transverse steel bar 213 and a first longitudinal steel bar 214 arranged in three axes of xyz. The first transverse steel bar 211, the second transverse steel bar 213 and the first longitudinal steel bar 214 are respectively plugged into the side walls of the connecting sleeve 212, thereby improving the installation stability of the connecting sleeve 212.

[0033] Reference Figure 4 and Figure 5 The first steel mesh also includes a second steel bar 32 and a third steel bar 33. The first steel bar 31, the second steel bar 32 and the third steel bar 33 are arranged in the xyz triaxial direction, thereby forming a structurally stable steel mesh structure.

[0034] Reference Figure 8 The vertical cross-section of the bottom plate body 3 is in an I-shape, a first accommodating cavity is provided on the upper surface of the bottom plate body 3, and a second accommodating cavity is provided on the lower surface; a grouting port 301 is opened in the middle; and a plug-in hole for fitting the column 1 is provided at the corner position of the edge.

[0035] A construction method for an assembled enclosure structure for a muddy geological elevator pit, comprising the following steps: S1, prefabricate the column 1, the side plate 2 and the bottom plate 3 in the factory; S2, transporting the column 1, the side plate body 2 and the bottom plate body 3 to the construction site; S3, place the bottom plate 3 on the foundation 5, so that the positioning holes on the bottom plate 3 are sleeved on the periphery of the expansion bolts on the foundation 5, and then install the nuts on the expansion bolts and tighten them (refer to Figure 8 ); S4, install the column 1 upright at the corner position of the outer edge of the bottom plate body 3, so that the bottom of the column 1 is inserted into the insertion hole, the side wall is attached to the inner wall position of the protrusion of the edge of the bottom plate body 3, and the first protruding steel bar at the bottom end of the column 1 is inserted into the embedded sleeve on the surface of the foundation 5; S5, insert the side plate 2 between the adjacent columns 1, so that the side plate 2 is pressed against the upper surface of the bottom plate 3 and the insertion protrusion 12 is inserted into the insertion groove 21, and the insertion column is inserted into the connecting sleeve 212; S6, the mounting bolt 4 is passed through the extension tube 2121 and is tightened with the connecting sleeve 212, so that the end of the stud of the mounting bolt 4 away from the column head is placed in the receiving hole 2122; S7, pouring concrete mortar on the upper surface of the bottom plate body 3 until the concrete mortar flows into the second accommodation cavity through the grouting port 301 and fills the second accommodation cavity; continuing to pour concrete mortar until the concrete mortar covers the mounting bolts 4; performing maintenance and smoothing until the construction is completed after the concrete mortar hardens.

[0036] The bottom plate body 3 is provided with a vertical second protruding steel bar around the plug-in hole, and the inner wall of the column 1 is provided with a horizontal third protruding steel bar. The second protruding steel bar and the third protruding steel bar are adapted to each other, so that after the column 1 is plugged and installed in the plug-in hole of the bottom plate body 3, the second protruding steel bar and the third protruding steel bar are crossed in a cross shape to facilitate the bundling of the steel wire. In step S7, the pouring of concrete mortar needs to cover the second protruding steel bar and the third protruding steel bar, so as to achieve the fixed installation of the column 1.

[0037] After the concrete mortar hardens, it will expand, thereby squeezing the column 1, the side plate body 2 and the bottom plate body 3 together from the inside to the outside, thereby improving the structural stability and reducing the generation of gaps.

[0038] The top surface of the foundation 5 is provided with a fourth protruding steel bar extending upward, and the top and side surfaces of the second accommodating cavity are respectively provided with fifth protruding steel bars, and anchor ribs are respectively installed on the surfaces of the fourth protruding steel bar and the fifth protruding steel bar, thereby improving the connection force between the foundation 5 and the bottom plate body 3 after pouring concrete to avoid detachment.

[0039] The connection between the outer wall of the side plate body 3 and the edge of the bottom plate body 3 is sealed with concrete mortar, and the connection between the outer wall of the column 1 and the edge of the bottom plate body 3 is sealed with concrete mortar, thereby reducing the infiltration of rainwater and increasing the service life of the present invention.

[0040] The present invention has a simple structure and reliable functions. The main parts of the columns 1, the side panels 2 and the bottom plate 3 are prefabricated in the factory and then transported to the site for assembly, eliminating the operations of piling and pulling out piles and brick membrane masonry, greatly improving the construction efficiency of the elevator pit enclosure and reducing work intensity. The columns 1, the side panels 2 and the bottom of the bottom plate are connected to each other with bolts and a small amount of concrete, which has a faster hardening speed and a more standardized operation form compared to integral casting.

[0041] In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "up", "down", "left", "right", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0042] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, it can be a mechanical connection, it can be an electrical connection, it can be a direct connection, it can be connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] To sum up, for those skilled in the art, according to the guidance of the present invention, without departing from the principles and spirit of the present invention, the changes, modifications, substitutions and deformations made to the present invention still fall within the protection scope of the present invention.

Claims

1. An assembled enclosure structure for a muddy geological elevator pit, characterized in that: It comprises a column (1), a side plate body (2) and a bottom plate body (3); the column (1) is arranged at a corner position of the outer edge of the bottom plate body (3), and the side plate body (2) is arranged between adjacent columns (1); A plug-in protrusion (12) is provided at the side wall of the upright column (1), and a plug-in groove (21) adapted to fit the plug-in protrusion (12) is provided at the end surface of the side plate body (2); A first steel mesh is provided in the bottom plate body (3); a plug-in column is inserted in the bottom plate body (3); a connecting sleeve (212) adapted to be plugged in with the plug-in column is provided at the bottom of the side plate body (2); the plug-in column and the connecting sleeve (212) can be locked by means of mounting bolts (4).

2. The assembled enclosure structure for a muddy geological elevator pit according to claim 1 is characterized in that: The first steel mesh comprises two layers of first steel bars (31) aligned one above the other in a matrix shape; a first fastening piece (34) and a second fastening piece (35) are provided in the bottom plate body (3); the first fastening piece (34) is pressed against the upper surface of the first steel bars (31) of the upper layer, and the second fastening piece (35) is abutted against the lower surface of the first steel bars (31) of the lower layer; and the bottom end of the plug-in column is vertically plugged into the first fastening piece (34) and the second fastening piece (35) respectively.

3. The assembled enclosure structure for a muddy geological elevator pit according to claim 2 is characterized in that: The first fastening member (34) is provided with first fastening fins at the left and right edge positions of the lower surface, respectively, and the two first fastening fins are respectively fastened to the two first steel bars (31) at the outermost edge of one side of the upper layer; the second fastening member (35) is provided with second fastening fins at the middle and outer edge positions of the upper surface, respectively, and the two second fastening fins are respectively fastened to the two first steel bars (31) at the outermost edge of one side of the lower layer; the second fastening fin is provided with a third fastening fin at the inner edge position of the second fastening fin, and the third fastening fin is fastened to the third first steel bar (31) at the outermost edge of one side of the lower layer.

4. The assembled enclosure structure for a muddy geological elevator pit according to claim 3 is characterized in that: The bottom end of the plug-in column is provided with a screw-on external thread, the first fastening member (34) is provided with a first screw hole adapted to the screw-on external thread, and the second fastening member (35) is provided with a second screw hole adapted to the screw-on external thread.

5. The assembled enclosure structure for a muddy geological elevator pit according to claim 4 is characterized in that: A transverse plug-in screw hole (331) is provided on the upper portion of the plug-in column, and a transverse extension tube (2121) is provided on the side wall of the connecting sleeve (212). The inner cavity of the extension tube (2121) is connected to the inner cavity of the connecting sleeve (212) in a 7-shape; the plug-in bolt can penetrate the inner cavity of the extension tube (2121) and be screwed to the plug-in screw hole (331).

6. The assembled enclosure structure for a muddy geological elevator pit according to claim 5 is characterized in that: The outer end surface of the extension tube (2121) is flush with the side wall of the side plate body (2).

7. The assembled enclosure structure for a muddy geological elevator pit according to claim 6 is characterized in that: The inner wall of the connecting sleeve (212) is provided with a blind hole-shaped accommodation hole (2122); the accommodation hole (2122) and the inner cavity of the extension tube (2121) are arranged on opposite sides of the inner wall of the connecting sleeve (212) and are coaxially arranged.

8. The assembled enclosure structure for a muddy geological elevator pit according to claim 7 is characterized in that: The accommodating hole (2122) is in communication with the inner cavity of the connecting sleeve (212).

9. The assembled enclosure structure for a muddy geological elevator pit according to claim 8 is characterized in that: A second steel mesh is provided in the side plate body (2), the second steel mesh comprising a first transverse steel bar (211), a second transverse steel bar (213) and a first longitudinal steel bar (214), the first transverse steel bar (211), the second transverse steel bar (213) and the first longitudinal steel bar (214) being respectively plugged into the side wall of the connecting sleeve (212).

10. A construction method for an assembled enclosure structure for a muddy geological elevator pit according to claim 9, characterized in that the steps include: S1, prefabrication of the upright column (1), the side plate body (2) and the bottom plate body (3); S2, transporting the upright column (1), the side plate body (2) and the bottom plate body (3) to the construction site; S3, placing the base plate (3) on a foundation (5); S4, installing the column (1) upright at a corner position of the outer edge of the base plate (3); S5, inserting and arranging the side plate body (2) between adjacent upright columns (1), so that the side plate body (2) is pressed against the upper surface of the bottom plate body (3), the insertion protrusion (12) is inserted into the insertion groove (21), and the insertion column is inserted into the connecting sleeve (212); S6, passing the mounting bolt (4) through the extension tube (2121) and tightening it with the connecting sleeve (212), so that the end of the stud of the mounting bolt (4) away from the column head is placed in the receiving hole (2122); S7, pouring concrete mortar on the upper surface of the base plate (3) so that the concrete mortar covers the mounting bolts (4).

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