CN212801561U - Foundation pit supporting structure - Google Patents

Abstract

The application relates to the field of foundation pit support, especially, relate to a foundation pit support structure. The key points of the technical scheme are as follows: the bottom of the vertical plate is connected to the transverse plate, inserting blocks are arranged at two ends of the inclined support rod respectively, T-shaped open grooves are formed in the inserting blocks in the horizontal direction, mounting grooves are formed in the transverse plate and the vertical plate respectively, the inserting blocks at two ends of the inclined support rod are inserted into the mounting grooves of the transverse plate and the mounting grooves of the vertical plate respectively, third connecting rails are arranged in the transverse plate and the vertical plate in a penetrating mode along the horizontal direction respectively, one side of each third connecting rail is arranged in the mounting grooves in a penetrating mode, the inserting blocks are embedded into the third connecting rails at one side positions in the mounting grooves through the T-shaped open grooves, and the mounting and dismounting convenience among all parts of the supporting structure is improved.

Description

Foundation pit supporting structure

Technical Field

The application relates to the field of foundation pit support, especially, relate to a foundation pit support structure.

Background

In the construction process of a high-rise building, a foundation pit is usually dug at a foundation, wherein the foundation pit support refers to retaining, reinforcing and protecting measures which are adopted for the side wall of the foundation pit and the surrounding environment in order to ensure the safety of an underground structure and the surrounding environment of the foundation pit.

At present, in the correlation technique, the excavation supporting construction mainly includes parts such as riser, diaphragm and diagonal brace, wherein, in excavation supporting's work progress, at first the riser is laminated in the hole wall department of excavation, install the diaphragm in the diapire department of excavation immediately, at last with the one end fixed mounting of diagonal brace in riser department and with the other end fixed mounting of diagonal brace in diaphragm department, violently support the diagonal brace, and the diagonal brace supports the riser, the riser supports the hole wall of excavation this moment, so realize supporting the hole wall of excavation supporting.

To the correlation technique among the above-mentioned, in the in-process of installing the diagonal brace, need fix through welded mode riser and diaphragm respectively, nevertheless welded fastening's mode has the defect of construction cycle length to after the construction, it is comparatively inconvenient when dismantling riser, diaphragm and diagonal brace three.

SUMMERY OF THE UTILITY MODEL

In order to promote the dismouting convenience between each part of supporting construction, this application provides a foundation ditch supporting construction.

The application provides a foundation ditch supporting construction adopts following technical scheme:

a foundation pit supporting structure comprises a vertical plate, a transverse plate and inclined supporting rods, wherein the bottom of the vertical plate is connected to the transverse plate, two ends of each inclined supporting rod are respectively provided with an inserting block, a T-shaped open slot is formed in each inserting block in the horizontal direction, mounting slots are formed in the transverse plate and the vertical plate respectively, the inserting blocks located at two ends of each inclined supporting rod are respectively inserted into the mounting slots of the transverse plate and the mounting slots of the vertical plate, a third connecting rail penetrates through the transverse plate and the vertical plate in the horizontal direction respectively, one side of the third connecting rail is arranged in the mounting slots in a penetrating mode, and the inserting blocks are embedded in one side positions, located in the mounting slots, of the third connecting rail through the T-shaped open slots.

Through adopting above-mentioned technical scheme, when needs install the diagonal brace, peg graft respectively to the mounting groove of diaphragm and the mounting groove of riser with two grafting pieces at diagonal brace both ends, wear to establish to diaphragm and riser in the horizontal direction respectively with the third connecting rail immediately, when the third connecting rail is worn to establish to the mounting groove, the grafting piece is via T type open slot gomphosis on the third connecting rail, realized the fixed of diagonal brace, when needs dismantle the diagonal brace, get the third connecting rail from diaphragm and riser respectively and can realize the pine of grafting piece and take off, can take out the diagonal brace this moment, the dismouting process is swift and convenient.

Preferably, the riser and run through respectively on the diaphragm and be provided with a plurality of mounting hole, the pore wall department of mounting hole is provided with the internal thread, the riser and be provided with the anchor pole on the diaphragm respectively, be provided with the external screw thread on the anchor pole, anchor pole threaded connection in the mounting hole, the anchor pole is worn to locate the mounting hole.

Through adopting above-mentioned technical scheme, after installing riser and diaphragm to foundation ditch department, anchor rod threaded connection rotates anchor rod in the mounting hole, wears to locate riser and diaphragm respectively for the anchor rod of mounting hole, makes the one end of anchor rod insert locate the foundation ditch in, so realize the reinforcement to diaphragm and riser, further promoted the stability of a fender when the installation.

Preferably, one end of the anchoring rod is provided with a first limiting block, and the first limiting block is abutted and limited with the transverse plate and the vertical plate respectively.

Through adopting above-mentioned technical scheme, first stopper is spacing to the anchor rod motion, plays the effect that restriction anchor rod pine takes off outside the mounting hole at the anchor in-process.

Preferably, one end of the anchoring rod, which is far away from the first limiting block, is arranged in a taper shape.

Through adopting above-mentioned technical scheme, the tip that the anchor rod is the taper setting is convenient for the anchor rod to insert and establishes to the foundation ditch in.

Preferably, the vertical plate and the transverse plates are hinged to each other, the vertical plate and the transverse plates at least comprise a first state and a second state, the vertical plate and the transverse plates are perpendicular to each other in the first state, and the transverse plates and the vertical plates are overlapped with each other in the second state.

Through adopting above-mentioned technical scheme, articulate diaphragm and riser and set up for can carry out the coincide with diaphragm and riser after the diagonal brace is dismantled, so reduced the occupation space of diaphragm and riser, so be convenient for transport diaphragm and riser.

Preferably, be provided with the second stopper on the diaphragm, work as the diaphragm and when the riser was located the first state, the riser with the mutual butt of second stopper is spacing.

Through adopting above-mentioned technical scheme, the lateral wall of foundation ditch is perpendicular setting usually, and the butt between second stopper and the riser is spacing to make between riser and the diaphragm when opening relatively, and the turned angle of diaphragm receives ninety degrees spacingly for the diaphragm is corresponding with the vertical angle of foundation ditch pot wall.

Preferably, the number of the inclined supporting rods is multiple, the inclined supporting rods are arranged between the transverse plate and the vertical plate at intervals along the horizontal direction, and the number of the installation grooves and the number of the insertion blocks are matched with the number of the inclined supporting rods.

Through adopting above-mentioned technical scheme, a plurality of diagonal braces play and consolidate the effect of supporting to a plurality of positions on the horizontal direction between diaphragm and the riser, play the support intensity of further reinforcing diaphragm and riser when strutting the foundation ditch.

Preferably, a reinforcing rod is arranged between the insertion block and the inclined strut, two ends of the reinforcing rod are respectively and fixedly connected to the inclined strut and the insertion block, and a triangle is formed by the inclined strut, the insertion block and the reinforcing rod.

Through adopting above-mentioned technical scheme, triangle-shaped has stability, and the stiffener plays and consolidates the effect of supporting to diagonal brace and grafting piece, has strengthened the connection stability between grafting piece and the diagonal brace.

In summary, the present application includes at least one of the following beneficial technical effects:

1. two insertion blocks at two ends of the diagonal brace are respectively inserted into the installation groove of the transverse plate and the installation groove of the vertical plate, a third connecting rail is penetrated into the transverse plate and the vertical plate along the horizontal direction, the insertion blocks are embedded on the third connecting rail through T-shaped open slots, the diagonal brace is fixed, when the diagonal brace needs to be disassembled, the third connecting rail is taken from the transverse plate and the vertical plate respectively, the insertion blocks can be loosened, the diagonal brace can be taken out at the moment, and the support piece is quick and convenient to disassemble and assemble;

2. the transverse plate and the vertical plate after the inclined stay bars are disassembled are overlapped, so that the occupied space of the transverse plate and the vertical plate is reduced, and the transverse plate and the vertical plate are convenient to transport;

3. the reinforcing rod plays a role in reinforcing and supporting the diagonal brace and the inserting block, and the connection stability between the inserting block and the diagonal brace is enhanced.

Drawings

Fig. 1 is a schematic overall structure diagram in a preferred embodiment of the present application.

Fig. 2 is a schematic structural view of the horizontal plate and the vertical plate in the first state according to a preferred embodiment of the present application.

Fig. 3 is a schematic structural view of the horizontal plate and the vertical plate in a second state according to a preferred embodiment of the present application.

FIG. 4 is a schematic view of the assembled relationship between the cross plate, riser and anchor bar in a preferred embodiment of the present application.

Fig. 5 is a schematic view showing the assembly relationship among the cross plate, the vertical plate, the diagonal brace and the third connecting rail according to a preferred embodiment of the present application.

Fig. 6 is a cross-sectional view of the cross board, the riser, the diagonal brace, and the third connecting rail in accordance with a preferred embodiment of the present application.

FIG. 7 is a schematic view of the assembly of two adjacent support members according to a preferred embodiment of the present application.

Fig. 8 is a schematic view of two adjacent supporting members assembled according to a preferred embodiment of the present application.

Fig. 9 is an enlarged view of a portion a in fig. 8.

Fig. 10 is an enlarged view of a portion B in fig. 8.

Description of reference numerals: 1. a support member; 101. a vertical plate; 1011. a first accommodating groove; 1012. a first split slot; 102. a transverse plate; 1021. a second limiting block; 1022. a second split slot; 103. a diagonal brace; 2. mounting holes; 3. an anchoring rod; 4. a first stopper; 5. an insertion block; 51. a T-shaped open slot; 6. a reinforcing bar; 7. mounting grooves; 8. a third connecting rail; 9. a third split groove; 10. a hoisting ring; 11. a second accommodating groove; 12. positioning the projection; 13. a positioning groove; 14. a first connecting rail; 15. a second connecting rail.

Detailed Description

The present application is described in further detail below with reference to figures 1-10.

The embodiment of the application discloses supporting construction of foundation ditch, refer to fig. 1, this supporting construction of foundation ditch includes a plurality of bracing piece 1 that links to each other in proper order along the horizontal direction, and the bracing piece 1 that links to each other in proper order forms the supporting system who struts the lateral wall of foundation ditch.

Specifically, a support 1 includes diagonal brace 103, diaphragm 102 and riser 101, and the both ends of diagonal brace 103 can be dismantled respectively and connect on diaphragm 102 and riser 101, and diaphragm 102 lays in the diapire department of foundation ditch along the horizontal direction, and riser 101 laminates in the lateral wall department of foundation ditch along vertical direction, and diaphragm 102 carries out fixed stay to diagonal brace 103, and diagonal brace 103 supports riser 101 for riser 101 can be strutted the lateral wall department of foundation ditch.

Referring to fig. 2 and 3, in the present embodiment, the outer edge profiles of the vertical plate 101 and the horizontal plate 102 are rectangular, and the bottom of the vertical plate 101 is hinged to the top side of the horizontal plate 102, so that the bottom of the vertical plate 101 is connected to the horizontal plate 102. The vertical plate 101 and the horizontal plate 102 at least include a first state and a second state therebetween. Wherein, when the first state, riser 101 is opened for diaphragm 102, mutually perpendicular between riser 101 and the diaphragm 102, and riser 101 is laminated on the lateral wall of foundation ditch this moment, and in addition, when the second state, riser 101 is folded towards diaphragm 102 department to mutual coincide between diaphragm 102 and the riser 101, the occupation space of diaphragm 102 and riser 101 has been reduced to mutual coincide's riser 101 and diaphragm 102, is convenient for transport diaphragm 102 and riser 101.

Referring to fig. 4, in order to improve the stability of the supporting member 1 during supporting, a plurality of mounting holes 2 are respectively formed through the vertical plate 101 and the horizontal plate 102, the mounting holes 2 are arranged in a circular hole shape, internal threads are formed at the hole walls of the mounting holes 2, the vertical plate 101 and the horizontal plate 102 are respectively provided with an anchoring rod 3, the anchoring rod 3 is arranged in a cylindrical shape in the present embodiment, one end of the anchoring rod 3 is arranged in a pointed cone shape, the other end of the anchoring rod 3 is fixedly connected with a first stopper 4 in a hexagon nut shape, the first stopper 4 is generally integrally connected with the anchoring rod 3, in addition, external threads are formed on the anchoring rod 3, the anchoring rod 3 is connected into the mounting holes 2 through the external threads, at this time, the anchoring rod 3 is inserted into the mounting holes 2, the pointed cone end of the anchoring rod 3 is inserted into a foundation pit, the first stopper 4 is respectively abutted against the horizontal plate 102 and the vertical plate 101, and the anchoring, the reinforcing to diaphragm 102 and riser 101 is realized, has further promoted the stability of a piece 1 when the installation, and simultaneously, first stopper 4 carries on spacingly to anchor rod 3, and first stopper 4 restricts anchor rod 3 and takes off to outside mounting hole 2 at the anchor in-process pine.

It should be noted that the specific number of the installation holes 2 can be adjusted according to actual requirements, in this embodiment, four installation holes 2 are respectively provided on the horizontal plate 102 and the vertical plate 101, and the four installation holes 2 are arranged in a rectangular shape, so that a plurality of positions of the horizontal plate 102 and the vertical plate 101 are anchored, and the specific number of the installation holes 2 and the anchor rods 3 is not limited here.

Further, referring to fig. 3 and 4, a second limiting block 1021 is arranged on the transverse plate 102, the second limiting block 1021 is arranged in a cuboid shape, the second limiting block 1021 is arranged at the top of the transverse plate 102 along the horizontal direction, generally, the second limiting block 1021 and the transverse plate 102 are integrally connected, a first accommodating groove 1011 is arranged at a side wall of the bottom of the vertical plate 101 in a recessed manner from outside to inside, when the transverse plate 102 and the vertical plate 101 are in the first state, the second limiting block 1021 is accommodated in the first accommodating groove 1011, and a surface of the second limiting block 1021 abuts against a groove wall of the first accommodating groove 1011, so that the vertical plate 101 and the second limiting block 1021 are abutted against each other and limited, a rotation angle of the vertical plate 101 is limited by ninety degrees, so that an opening angle of the vertical plate 101 corresponds to a vertical angle of a side wall of a foundation pit.

Referring to fig. 5 and 6, the diagonal brace 103 is easily disassembled and assembled to improve the convenience of the support member 1 in use. In the present embodiment, the diagonal member 103 is provided in a square rod shape, the insertion blocks 5 are provided at both ends of the diagonal member 103, the insertion blocks 5 are provided in a rectangular parallelepiped shape, and the end portions of the insertion blocks 5 are connected to the end portions of the diagonal member 103, and usually, the insertion blocks 5 and the diagonal member 103 are integrally connected. Be provided with stiffener 6 between grafting piece 5 and the diagonal brace 103, the both ends of stiffener 6 are fixed connection respectively on diagonal brace 103 and grafting piece 5, enclose between diagonal brace 103, grafting piece 5 and the stiffener 6 three and establish and form the triangle-shaped, and stiffener 6 plays the effect of strengthening the support to diagonal brace 103 and grafting piece 5.

In addition, a T-shaped opening groove 51 is horizontally arranged on the insertion block 5, two ends of the T-shaped opening groove 51 are respectively opened at two opposite side walls of the insertion block 5, and one side of the T-shaped opening groove 51 is opened at a side surface of the insertion block 5 far away from the diagonal brace 103. Be provided with mounting groove 7 on diaphragm 102 and the riser 101 respectively, mounting groove 7 that sets up on diaphragm 102 is at the upper surface department of diaphragm 102 shaping of undercut from the top down, the mounting groove 7 that sets up in riser 101 in addition keeps away from the shaping of the outside-in sunken of a side surface of foundation ditch lateral wall at riser 101, the opening of mounting groove 7 is the rectangle setting, so with the tip profile looks adaptation of grafting piece 5, the grafting piece 5 that is located diagonal brace 103 both ends is pegged graft respectively in mounting groove 7 of diaphragm 102 and is pegged graft in mounting groove 7 of riser 101, and the surface of grafting piece 5 is laminated with the cell wall of mounting groove 7 mutually, mounting groove 7 plays the effect of carrying out the primary positioning to grafting piece 5.

It should be noted that, the opening area of the mounting groove 7 should be larger than the end surface area (not shown) of the insertion block 5, so as to provide an adjustment space for insertion when the insertion block 5 is inserted into the mounting groove 7, so as to insert and mount the insertion block 5 into the mounting groove 7.

In addition, in order to fix the inclined stay bar 103 with the transverse plate 102 and the vertical plate 101 respectively, a third connecting rail 8 is arranged in the transverse plate 102 and the vertical plate 101 in a penetrating manner along the horizontal direction, wherein a third splicing groove 9 is arranged in the transverse plate 102 and the vertical plate 101 in a penetrating manner along the horizontal direction, the longitudinal section of the third splicing groove 9 is H-shaped, two ends of the third splicing groove 9 are respectively opened at two opposite side walls of the transverse plate 102 and the vertical plate 101, one side of the third splicing groove 9 is arranged in the mounting groove 7 in a penetrating manner, so that the part of the third splicing groove 9 arranged in the mounting groove 7 is lost, at the moment, the lost part of the third splicing groove 9 is spliced with the T-shaped open groove 51 on the splicing block 5 to form an H shape in a combining manner, so that the third splicing groove 9 is communicated with the mounting groove 7, the third connecting rail 8 is a steel rail with an H-shaped section, and the third connecting rail 8 is arranged in the transverse plate 102 through the third splicing groove 9, in the process, firstly, one end of the third connecting rail 8 is aligned with one end of the third splicing groove 9, the third connecting rail 8 is inserted into the third splicing groove 9, when the third connecting rail 8 penetrates into the mounting groove 7, one side of the third connecting rail 8 is inserted into the T-shaped opening groove 51 through an opening at one end of the T-shaped opening groove 51, so that the inserting block 5 is embedded into one side position of the third connecting rail 8 in the mounting groove 7 through the T-shaped opening groove 51, the inserting block 5 is fixed, the fixing of the inserting block 5 on the transverse plate 102 or the vertical plate 101 is realized, and further the fixing of the inclined strut 103 is realized.

Further, when the inclined strut 103 needs to be detached, the third connecting rail 8 is taken out of the third splicing grooves 9 in the horizontal plate 102 and the vertical plate 101, so that the insertion block 5 can be loosened, at this time, the inclined strut 103 can be taken out, and the detachment and installation process is quick and convenient, wherein in order to take out the third connecting rail 8, the hanging rings 10 are fixedly mounted at one ends of the third connecting rail 8, the second accommodating grooves 11 are respectively formed in the two sides of the horizontal plate 102 and the vertical plate 101, the hanging rings 10 are accommodated in any one of the second accommodating grooves 11, and the hanging rings 10 provide force application points for the third connecting rail 8, so that the third connecting rail 8 can be detached conveniently.

In addition, the number of the inclined struts 103 may be multiple, the plurality of inclined struts 103 are arranged at intervals from one side of the support 1 to the other side of the support 1 along the horizontal direction between the horizontal plate 102 and the vertical plate 101, the number of the installation grooves 7 and the insertion blocks 5 is adapted to the number of the inclined struts 103, it should be noted that the specific number of the inclined struts 103 may be correspondingly arranged according to actual needs, for example, four, five, six, and the like, and the specific number of the inclined struts 103 is not limited herein, in this embodiment, the number of the inclined struts 103 is three as an example, here, the plurality of inclined struts 103 play a role in reinforcing and supporting multiple positions between the horizontal plate 102 and the vertical plate 101 in the horizontal direction, and further enhance the strength of the horizontal plate 102 and the vertical plate 101 in supporting the foundation pit.

Referring to fig. 7 and 8, in order to improve the convenience of mounting and dismounting and the recycling of the supporting system, it is necessary to carry out portable mounting and dismounting between two adjacent supporting members 1.

Wherein, when installing supporting system, at first need splice between two supporting members 1, wherein, be provided with location arch 12 and positioning groove 13 respectively near the both sides lateral wall punishment of adjacent supporting member 1 on supporting member 1, the quantity of location arch 12 is a plurality of, location arch 12 is the setting of cylinder form, a plurality of location arch 12 evenly distributed respectively on diaphragm 102 and riser 101, wherein, the one end of location arch 12 is fixed with the lateral wall of diaphragm 102 or with the lateral wall of riser 101, generally, location arch 12 can be fixed with diaphragm 102 and with riser 101 through welded fastening's mode. The number of the positioning grooves 13 is corresponding to the number of the positioning protrusions 12, the positioning grooves 13 are concavely arranged on the side walls of the transverse plate 102 and the vertical plate 101, the positioning protrusions 12 of any supporting piece 1 are respectively inserted into the positioning grooves 13 of the adjacent supporting pieces 1 in a one-to-one correspondence manner, the insertion cooperation between the positioning protrusions 12 and the positioning grooves 13 enables the adjacent two supporting pieces 1 to be positioned when being spliced with each other, the effect of improving the installation accuracy between the adjacent two supporting pieces 1 is achieved, it needs to be explained that the number of the positioning protrusions 12 and the number of the positioning grooves 13 can be correspondingly set according to actual needs, and the number of the positioning protrusions 12 and the number of the positioning grooves 13 are not limited.

Further, refer to fig. 8 and fig. 9, need carry out reciprocal anchorage after two adjacent protections 1 splice each other in order to guarantee the whole steadiness of supporting system, specifically, the first amalgamation groove 1012 of transversal personally submitting the T font is seted up respectively along vertical direction in the both sides lateral wall department of riser 101, the top of first amalgamation groove 1012 is the opening setting in the upper surface department of riser 101, and one side of first amalgamation groove 1012 is located the opening at riser 101 towards one side lateral wall of adjacent riser 101, two risers 101 of two adjacent protections 1 butt each other and laminate each other after splicing each other. At this time, the two first split grooves 1012 on two adjacent vertical plates 101 are split and communicated with each other, and the cross section of the two first split grooves 1012 split with each other is H-shaped. Be provided with the first connecting rail 14 that the cross-section is the H type between two risers 101, the shape of first connecting rail 14 is unanimous with the shape of third connecting rail 8, first connecting rail 14 sets up along vertical direction, peg graft the top end opening part of the first amalgamation groove 1012 of 14 bottom downwardly pegging graft to the mutual amalgamation of twice with first connecting rail, make first connecting rail 14 inlay locate in the mutual amalgamation groove 1012 of twice, first connecting rail 14 realizes the interlock fixed to two adjacent risers 101 respectively through the first amalgamation groove 1012 of twice this moment, process convenient and fast, fixed connection between two supports 1 has been realized.

When two supports 1 need be dismantled each other, take out first connecting rail 14 from first amalgamation groove 1012 and can loosen two supports 1 each other and take off, wherein, take out first connecting rail 14 for being convenient for, the top welded fastening of first connecting rail 14 has rings 10, and the top surface of riser 101 is provided with second storage tank 11 from the upper-to-lower recess, rings 10 and second storage tank 11's the mode of setting is consistent with the mode of setting of third connecting rail 8 department, and the description is no longer given here.

Further, referring to fig. 10, in order to enhance the connection strength between two adjacent supporting members 1, two sides of the horizontal plate 102 are respectively provided with a second splicing groove 1022 with a T-shaped longitudinal section along the horizontal direction, one end of the second splicing groove 1022 extends from the side close to the vertical plate 101 to the side far from the vertical plate 101, one end of the second splicing groove 1022 far from the vertical plate 101 opens at the side wall of the horizontal plate 102, and one side of the second splicing groove 1022 opens at the side wall of the horizontal plate 102 facing the adjacent horizontal plate 102, after the two supporting members 1 are spliced with each other, the two horizontal plates 102 in the two adjacent supporting members 1 are abutted and jointed with each other, at this time, the two second splicing grooves on the two adjacent horizontal plates 102 are spliced and communicated with each other, the cross section 1022 of the two second splicing grooves 1022 spliced with each other is H-shaped, in addition, a second connecting rail 15 with an H-shaped cross section is arranged between the two horizontal plates 102, the shape of second connecting rail 15 is unanimous with the shape of third connecting rail 8, second connecting rail 15 sets up along the horizontal direction, peg graft the one end of second connecting rail 15 to the opening part in the second amalgamation groove 1022 of the mutual concatenation of twice along the horizontal direction, make second connecting rail 15 inlay locate in the second amalgamation groove 1022 of the mutual amalgamation of twice, at this moment, second connecting rail 15 realizes the interlock through twice second amalgamation groove 1022 respectively two adjacent diaphragm 102 fixed, process convenient and fast, the connection stability between two supporting members 1 has further been promoted.

In addition, when two supporting pieces 1 need to be detached from each other, the second connecting rail 15 needs to be taken out of the second splicing groove 1022 to realize the mutual release between the two transverse plates 102, wherein the end portion of the second connecting rail 15 can be welded and fixed with the hanging ring 10, the side wall of the transverse plate 102 can be provided with the second accommodating groove 11, and the arrangement modes of the hanging ring 10 and the second accommodating groove 11 are consistent with the arrangement mode of the third connecting rail 8, and are not described herein again.

The embodiment of the application also discloses a construction method of the foundation pit supporting structure, which comprises the following steps:

s1: and excavating the foundation pit according to the construction specification, and carrying out leveling treatment on the bottom wall and the side wall of the excavated foundation pit so as to ensure that the bottom wall and the side wall of the foundation pit are vertical to each other.

S2: the folding transverse plate 102 and the transverse plate 102 of the vertical plate 101 are placed at the bottom wall of the foundation pit, and one side of the transverse plate 102 is adjacent to the bottom wall of the foundation pit, wherein one side of the transverse plate 102 refers to the side where the transverse plate 102 is hinged with the vertical plate 101.

S3: the vertical plate 101 is turned upwards relative to the transverse plate 102 and opened until the vertical plate 101 abuts against the side wall of the foundation pit, and at the moment, the vertical plate 101 is perpendicular to the transverse plate 102.

S4: two inserting blocks 5 positioned at two ends of the inclined strut 103 are respectively inserted into the mounting groove 7 of the vertical plate 101 and the mounting groove 7 of the transverse plate 102, and the two ends of the inclined strut 103 realize primary positioning under the mutual inserting action between the inserting blocks 5 and the mounting grooves 7.

S4-1, if the inclined supporting rod 103 is provided in a plurality, the inclined supporting rods 103 are sequentially installed.

S5: the third connecting rail 8 is respectively inserted into the horizontal plate 102 and the vertical plate 101 in the horizontal direction, wherein one end of the third connecting rail 8 is aligned with one end of the third split groove 9, the third connecting rail 8 is immediately inserted into the third split groove 9, the third connecting rail 8 is inserted into the T-shaped open groove 51, the insertion blocks 5 are embedded into the third connecting rail 8 through the T-shaped open groove 51, the fixing of the insertion blocks 5 at the vertical plate 101 and the horizontal plate 102 is realized, and the fixing of the diagonal brace 103 is further realized.

S6: inserting the anchoring rod 3 into the mounting hole 2, rotating the anchoring rod 3, connecting the anchoring rod 3 and the mounting hole 2 in a threaded manner, inserting one end of the anchoring rod 3 into the foundation pit, and fixing the anchoring rod 3 on the transverse plate 102 or the vertical plate 101.

S7: the positioning protrusion 12 of the supporting piece 1 is inserted into the positioning groove 13 of another supporting piece 1, two vertical plates 101 of the two supporting pieces 1 which are mutually spliced are mutually jointed and abutted, so that the two first splicing grooves 1012 are mutually spliced, two transverse plates 102 of the two supporting pieces 1 which are mutually spliced are mutually jointed and abutted, the two second splicing grooves 1022 are mutually spliced, and the two adjacent supporting pieces 1 are mutually spliced.

S8: in addition, the installation of the first connecting rail 14 can be realized by embedding the first connecting rail 14 into two mutually-spliced first splicing grooves 1012 and embedding the second connecting rail 15 into two mutually-spliced second splicing grooves 1022, aligning one end of the first connecting rail 14 with the open ends of the two first splicing grooves 1012 and then inserting the first connecting rail 14 into the two first splicing grooves 1012, and aligning one end of the second connecting rail 15 with the open ends of the two second splicing grooves 1022 and then inserting the second connecting rail 15 into the two second splicing grooves 1022, so that the installation of the second connecting rail 15 can be realized.

S9: a plurality of supporting pieces 1 are sequentially added, and a plurality of supporting pieces 1 which are sequentially connected form a supporting system.

S10: when the support system needs to be disassembled, the lifting ring 10 is pulled to pull the first connecting rail 14 out of the two first split grooves 1012, the lifting ring 10 is pulled to pull the second connecting rail 15 out of the two second split grooves 1022, and then the two support pieces 1 are disassembled and separated, so that the support system is disassembled.

S11: pulling the hanging ring 10 to respectively pull the third connecting rail 8 away from the vertical plate 101 and the third splicing groove 9 of the transverse plate 102, then taking the splicing blocks 5 at the two ends of the inclined stay bar 103 out of the mounting groove 7, unscrewing and disassembling the anchoring rod 3 from the mounting hole 2, and finally folding the transverse plate 102 and the vertical plate 101 to realize the disassembly of the support member 1.

In the work progress, the installation and the dismantlement process between support 1 self and the adjacent support 1 are simple and convenient, work efficiency when having promoted the construction, but simultaneously support 1 manifold cycles uses, the construction cost who drops into when so having reduced the construction.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. A foundation pit supporting structure comprises a vertical plate (101), a transverse plate (102) and inclined supporting rods (103), wherein the bottom of the vertical plate (101) is connected to the transverse plate (102), and the foundation pit supporting structure is characterized in that: the two ends of the inclined stay bar (103) are respectively provided with an inserting block (5), a T-shaped open slot (51) is arranged on the inserting block (5) along the horizontal direction, the transverse plate (102) and the vertical plate (101) are respectively provided with a mounting groove (7), the inserting blocks (5) positioned at the two ends of the inclined stay bar (103) are respectively inserted in the mounting grooves (7) of the transverse plate (102) and the mounting grooves (7) of the vertical plate (101), a third connecting rail (8) is respectively arranged in the transverse plate (102) and the vertical plate (101) in a penetrating way along the horizontal direction, one side of the third connecting rail (8) is arranged in the mounting groove (7) in a penetrating way, the insertion block (5) is embedded in one side position of the third connecting rail (8) in the mounting groove (7) through the T-shaped opening groove (51).

2. A foundation pit supporting construction according to claim 1, wherein: the anchor rod fixing device is characterized in that a plurality of mounting holes (2) are formed in the vertical plate (101) and the transverse plate (102) in a penetrating mode respectively, internal threads are arranged at the hole wall of each mounting hole (2), anchor rods (3) are arranged on the vertical plate (101) and the transverse plate (102) respectively, external threads are arranged on the anchor rods (3), the anchor rods (3) are in threaded connection with the inside of the mounting holes (2), and the anchor rods (3) are arranged in the mounting holes (2) in a penetrating mode.

3. A foundation pit supporting construction according to claim 2, wherein: one end of the anchoring rod (3) is provided with a first limiting block (4), and the first limiting block (4) is abutted and limited with the transverse plate (102) and the vertical plate (101) respectively.

4. A foundation pit supporting construction according to claim 3, wherein: the anchoring rod (3) is far away from one end of the first limiting block (4) and is arranged in a taper shape.

5. A foundation pit supporting construction according to claim 1, wherein: the vertical plate (101) and the transverse plate (102) are hinged to each other, the vertical plate (101) and the transverse plate (102) at least comprise a first state and a second state, the vertical plate (101) and the transverse plate (102) are perpendicular to each other in the first state, and the transverse plate (102) and the vertical plate (101) are overlapped with each other in the second state.

6. A foundation pit supporting construction according to claim 5, wherein: the transverse plate (102) is provided with a second limiting block (1021), and when the transverse plate (102) and the vertical plate (101) are located in a first state, the vertical plate (101) and the second limiting block (1021) are abutted and limited.

7. A foundation pit supporting construction according to claim 1, wherein: the number of the inclined supporting rods (103) is multiple, the inclined supporting rods (103) are arranged between the transverse plate (102) and the vertical plate (101) at intervals along the horizontal direction, and the number of the installation grooves (7) and the number of the insertion blocks (5) are matched with the number of the inclined supporting rods (103).

8. A foundation pit supporting construction according to claim 1, wherein: a reinforcing rod (6) is arranged between the insertion block (5) and the inclined supporting rod (103), two ends of the reinforcing rod (6) are respectively and fixedly connected to the inclined supporting rod (103) and the insertion block (5), and a triangle is formed by the inclined supporting rod (103), the insertion block (5) and the reinforcing rod (6) in an enclosing manner.

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