CN216865192U - Pit internal reinforcement structure for foundation pit support - Google Patents
Pit internal reinforcement structure for foundation pit support Download PDFInfo
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- CN216865192U CN216865192U CN202220620325.XU CN202220620325U CN216865192U CN 216865192 U CN216865192 U CN 216865192U CN 202220620325 U CN202220620325 U CN 202220620325U CN 216865192 U CN216865192 U CN 216865192U
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Abstract
The application relates to the technical field of constructional engineering, in particular to an in-pit reinforcing structure for foundation pit supporting, which comprises a top bracing mechanism, wherein the top bracing mechanism comprises a top bracing frame, a top bracing seat and a top bracing rod, the top bracing frame is propped at the bottom of a waist beam, the top bracing seat is supported at the bottom side of a foundation pit, the top bracing rod is arranged between the top bracing frame and the top bracing seat, the top support of the top bracing rod is connected with the top bracing frame, and the bottom support of the top bracing rod is connected with the top bracing seat; the top bracing frame comprises a top bracing plate, side bracing plates and a back bracing plate, the top bracing plate is braced at the bottom of the waist beam, the side bracing plates are braced on the side walls of the supporting piles, the back bracing plates are fixed between the top bracing plate and the side bracing plates, and the top bracing of the top bracing plate is connected with the back bracing plate. The utility model provides a top stay bar supports bottom the waist rail through the top strut, can improve the waist rail to the support intensity of foundation ditch lateral wall, makes the foundation ditch be difficult for appearing collapsing.
Description
Technical Field
The application relates to the technical field of constructional engineering, in particular to a pit internal reinforcement structure for foundation pit support.
Background
A foundation pit (foundation pit) is a space below the ground excavated for constructing a foundation and a basement of a building (including a structure), and is used in construction work.
Referring to fig. 1, currently, in most villages and towns, a foundation pit 100 is generally provided with a mixing pile 101, a support pile 102, a crown beam 103, and a wale 104; wherein, the mixing piles 101 are arranged at the periphery of the pit body to form a waterproof curtain, the support piles 102 are arranged at the inner side of the foundation pit 100 to support and reinforce the foundation pit 100, and the crown beams 103 and the wales 104 are respectively supported and arranged at the top and the waist positions of the support piles 102.
However, since there are many soil foundations 105 around the outer periphery of the foundation pit 100, the soil foundations 105 always apply a large pressure to the mixing piles 101 and the support piles 102, and the foundation pit 100 is likely to collapse. Therefore, further improvements can be made.
SUMMERY OF THE UTILITY MODEL
In order to make the foundation ditch be difficult for appearing collapsing, this application provides a reinforced structure in excavation supporting's hole.
The application provides a reinforced structure in pit of foundation ditch support adopts following technical scheme:
a pit internal reinforcing structure for supporting a foundation pit comprises a top bracing mechanism, wherein the top bracing mechanism comprises a top bracing frame braced at the bottom of a waist beam, a top bracing seat braced at the bottom side of the foundation pit and a top bracing rod arranged between the top bracing frame and the top bracing seat, the top support of the top bracing rod is connected with the top bracing frame, and the bottom support of the top bracing rod is connected with the top bracing seat; the top bracing frame comprises a top bracing plate, side bracing plates and a back bracing plate, wherein the top bracing plate is braced at the bottom of the waist beam, the side bracing plate is braced on the side wall of the supporting pile, the back bracing plate is fixed between the top bracing plate and the side bracing plates, and the top bracing plate of the top bracing plate is connected with the back bracing plate.
Through adopting above-mentioned technical scheme, in the construction process of foundation ditch, because the brace rod can support the waist rail bottom through the roof-strut, can improve the support intensity of waist rail to the foundation ditch lateral wall, make the foundation ditch be difficult for appearing collapsing.
Optionally, the top brace rod comprises a top barrel, a bottom barrel and a double-end adjusting screw rod, the thread turning directions at two ends of the double-end adjusting screw rod are opposite, the top barrel and the bottom barrel are respectively in thread connection with two ends of the double-end adjusting screw rod, one end of the top barrel, far away from the double-end adjusting screw rod, is hinged to the backboard, and one end of the bottom barrel, far away from the double-end adjusting screw rod, is hinged to the top brace seat.
Through adopting above-mentioned technical scheme, at the in-process of installing this reinforced structure, the workman can adjust the whole length of ejector pin through rotating double-end adjusting screw, and then adjusts the ejection angle of ejector pin to the workman can adjust the support angle of ejector pin according to the inside concrete foundation structure of foundation ditch.
Optionally, the two ends of the double-end adjusting screw are both connected with first locking nuts in a threaded manner, and the first locking nuts are used for reinforcing the locking top barrel and the locking bottom barrel respectively.
Through adopting above-mentioned technical scheme, after adjusting the whole length of top vaulting pole through double-end adjusting screw, through screwing up two first lock nut, make two first lock nut respectively with a top section of thick bamboo and a section of thick bamboo counterbalance tightly at the bottom to consolidate the locking to a top section of thick bamboo and a section of thick bamboo at the bottom.
Optionally, the top supporting mechanism further comprises an auxiliary supporting rod, the top support of the auxiliary supporting rod is hinged to one end, close to the double-end adjusting screw, of the top barrel, and the bottom of the auxiliary supporting rod is supported on the bottom side of the foundation pit.
Through adopting above-mentioned technical scheme, owing to be provided with the auxiliary stay pole, can improve the overall stability of shore structure, and then improve the support intensity to the waist rail.
Optionally, a plurality of reinforcing rib plates are installed between the top bracing plate and the side bracing plate.
Through adopting above-mentioned technical scheme, owing to be provided with the reinforced rib plate, can improve top support frame's overall structure stability.
Optionally, the system further comprises a bracing mechanism, wherein the bracing mechanism comprises two anchor cables for bracing the crown beam and the waist beam respectively, one end of each anchor cable is obliquely inserted into the soil foundation on the periphery of the foundation pit, and the other end of each anchor cable is fixed on the corresponding crown beam/waist beam respectively.
Through adopting above-mentioned technical scheme, carry out the drag stay to hat roof beam and waist rail through setting up two anchor ropes to consolidate hat roof beam and waist rail, and then further improve the inboard structural stability of foundation ditch, further make the foundation ditch be difficult for taking place to collapse.
Optionally, all install the seat of pretightening on hat roof beam and the waist rail, the seat of pretightening includes pretension bottom plate, crosses a cable section of thick bamboo, pretension section of thick bamboo and pretension head, pretension bottom plate fixed mounting is in corresponding hat roof beam/waist rail, cross the cable section of thick bamboo and be fixed in pretension bottom plate and deviate from corresponding hat roof beam/waist rail one end, pretension section of thick bamboo threaded connection is in crossing cable section of thick bamboo and keeping away from pretension bottom plate one side, pretension head rotates and installs in pretension section of thick bamboo and keep away from cable section of thick bamboo one end, the anchor rope is kept away from soil matrix one end and is worn to locate in a cable section of thick bamboo and pretension section of thick bamboo and be fixed in pretension head.
Through adopting above-mentioned technical scheme, at the in-process of installation anchor rope, the workman can be through rotating the regulation pretension section of thick bamboo, makes the pretension section of thick bamboo move the regulation towards keeping away from a rope section of thick bamboo one end to the pulling anchor rope carries out the pretension, and then improves the anchor rope and to the tensioning dynamics of hat roof beam/waist rail.
Optionally, a second locking nut is connected to the cable passing cylinder through a thread.
Through adopting above-mentioned technical scheme, after adjusting the position of a pretension section of thick bamboo, through screwing up second lock nut, make second lock nut and pretension section of thick bamboo counterbalance tightly to make a pretension section of thick bamboo be difficult and cross the cable and provide relative rotation takes place, in order to improve a pretension section of thick bamboo and cross the connection stability between the cable section of thick bamboo.
In summary, the present application includes at least one of the following beneficial technical effects:
in the construction process of the foundation pit, the top support rods can support the bottoms of the waist beams through the top support frames, so that the support strength of the waist beams on the side walls of the foundation pit can be improved, and the foundation pit is not easy to collapse;
in the process of installing the reinforcing structure, workers can adjust the overall length of the top supporting rod by rotating the double-end adjusting screw rod, and further adjust the top supporting angle of the top supporting rod, so that the workers can adjust the supporting angle of the top supporting rod according to the specific foundation structure in the foundation pit;
the two anchor cables are arranged to tension and support the top beam and the waist beam so as to reinforce the top beam and the waist beam, so that the structural stability of the inner side of the foundation pit is further improved, and the foundation pit is further not prone to collapse.
Drawings
Fig. 1 is a conventional foundation pit structure.
Fig. 2 is a schematic overall structure diagram of an embodiment of the present application.
Fig. 3 is a schematic view of the overall structure of the top bracket.
Fig. 4 is a view for showing the overall structure of the pre-tightening socket.
Description of the reference numerals:
1. a top bracing frame; 11. a top bracing plate; 12. a side supporting plate; 13. a back support plate; 14. a reinforcing rib plate; 2. a jacking seat; 3. a top brace rod; 31. a top cylinder; 32. a bottom cylinder; 33. a double-ended adjusting screw; 34. a first lock nut; 4. an auxiliary stay bar; 5. an anchor cable; 6. pre-tightening the base; 61. pre-tightening the bottom plate; 62. a cable passing cylinder; 63. pre-tightening the cylinder; 631. mounting grooves; 632. a bearing; 64. pre-tightening the head; 65. a second lock nut; 100. a foundation pit; 101. stirring the piles; 102. supporting piles; 103. a crown beam; 104. a wale; 105. soil foundation; 106. a shoring mechanism; 107. a bracing mechanism.
Detailed Description
The present application is described in further detail below with reference to figures 2-4.
The embodiment of the application discloses reinforced structure in pit of excavation supporting.
Referring to fig. 2, the internal reinforcement structure of the foundation pit 100 includes a top bracing mechanism 106 and a tension bracing mechanism 107; the top bracing mechanism 106 is installed in the foundation pit 100, the bottom of the top bracing mechanism 106 is supported at the bottom of the foundation pit 100, and the top of the top bracing mechanism 106 is braced on the wale 104 so as to support and reinforce the wale 104. The bracing mechanism 107 includes two anchor cables 5, and two anchor cables 5 one end are all worn to establish to the soil bed 105 of foundation ditch 100 periphery, and two anchor cables 5 other ends are fixed in crown beam 103 and waist rail 104 respectively to hang and prop the reinforcement to crown beam 103 and waist rail 104.
Specifically, in the present embodiment, the top bracing mechanism 106 includes a top bracing frame 1, a top bracing seat 2 and a top bracing rod 3; the top bracing frame 1 is braced at the bottom of the waist rail 104, the top bracing seat 2 is supported at the bottom side of the foundation pit 100, the top bracing rod 3 is installed between the top bracing frame 1 and the top bracing seat 2, the bottom of the top bracing rod 3 is connected with the top bracing frame 1 in a supporting manner, and the bottom of the top bracing rod 3 is connected with the top bracing seat 2 in a supporting manner so as to support and reinforce the waist rail 104.
Referring to fig. 3, in particular, in the present embodiment, the top brace 1 includes a top brace plate 11, a side brace plate 12, and a back brace plate 13; wherein, the top bracing plate 11 is arranged vertically to the side bracing plate 12; the back support plates 13 are arranged between the top support plates 11, the back support plates 13 are obliquely arranged, the tops of the back support plates 13 are supported on the top support plates 11, and the bottoms of the back support plates 13 are supported on the side support plates 12; and the top support plate 11, the side support plates 12 and the back support plate 13 are integrally formed. In the process of installing the top support frame 1, the top support plate 11 is supported at the bottom of the wale 104, and the side support plate 12 is supported on the side wall of the support pile 102 so as to support the bottom of the wale 104, so that the support strength of the wale 104 on the side wall of the foundation pit 100 can be improved, and the foundation pit 100 is not easy to collapse.
In this embodiment, a plurality of reinforcing ribs 14 are further installed between the top supporting plate 11 and the side supporting plate 12, the plurality of reinforcing ribs 14 are arranged at intervals, and each reinforcing rib 14 is fixed to the top supporting plate 11 and the side supporting plate 12 at the same time, so as to improve the overall structural stability of the top frame 1.
Specifically, in the present embodiment, the top stay 3 includes a top cylinder 31, a bottom cylinder 32, and a double-headed adjusting screw 33; wherein, the screw thread of double-end adjusting screw 33 both ends is turned to the opposite direction, and top section of thick bamboo 31 and end section of thick bamboo 32 threaded connection respectively in double-end adjusting screw 33 both ends, and top section of thick bamboo 31 keep away from double-end adjusting screw 33 one end and articulated mutually with the backplate, and end section of thick bamboo 32 keeps away from double-end adjusting screw 33 one end and articulates mutually with propping a seat 2.
In the process of installing this reinforcing structure, the workman can adjust the whole length of brace strut 3 through rotating double-end adjusting screw 33, and then adjusts the brace strut angle of brace strut 3 to the workman can adjust the support angle of brace strut 3 according to the concrete foundation structure of foundation ditch 100 inside.
In this embodiment, first lock nuts 34 are further installed at both ends of the double-end adjusting screw 33, and both first lock nuts 34 are in threaded connection with the double-end adjusting screw 33. After the whole length of the top stay bar 3 is adjusted by the double-end adjusting screw 33, the two first locking nuts 34 are screwed, so that the two first locking nuts 34 are respectively abutted against the top barrel 31 and the bottom barrel 32, and the top barrel 31 and the bottom barrel 32 are reinforced and locked.
Referring to fig. 2 and 3, in this embodiment, the top bracing mechanism 106 further includes an auxiliary bracing rod 4, the auxiliary bracing rod 4 is disposed obliquely, the top of the auxiliary bracing rod 4 is supported on the top cylinder 31 and is hinged to one end of the top cylinder 31 close to the double-end adjusting screw 33, and the bottom of the auxiliary bracing rod 4 is supported and fixed on the bottom side of the foundation pit 100 through a hinged support. In the process of supporting the wale 104 by the installation of the top bracing mechanism 106, the auxiliary bracing rod 4 supports and reinforces the top bracing rod 3 so as to improve the overall stability of the top bracing structure and further improve the supporting strength of the wale 104.
Referring to fig. 2, specifically, in the present embodiment, the bracing mechanism 107 includes two anchor cables 5, and the two anchor cables 5 are respectively disposed in one-to-one correspondence with the crown beam 103 and the wale 104, and one end of each of the two anchor cables 5 is obliquely inserted into the soil foundation 105 at the periphery of the foundation pit 100. The pre-tightening seats 6 are fixedly mounted on the top beams 103 and the waist beams 104, and one ends of the two anchor cables 5, which are far away from the soil foundation 105, are respectively fixed on the pre-tightening seats 6 on the corresponding top beams 103/waist beams 104, so that the two anchor cables 5 can respectively perform bracing reinforcement on the top beams 103 and the waist beams 104, the structural stability of the inner side of the foundation pit 100 is improved, and the foundation pit 100 is further prevented from collapsing.
Referring to fig. 4, in particular, in the present embodiment, the pretensioning seat 6 includes a pretensioning base plate 61, a cable passing cylinder 62, a pretensioning cylinder 63, and a pretensioning head 64; the two ends of the cable passing cylinder 62 are open, a first cable passing port is formed in the pre-tightening bottom plate 61 and penetrates through the pre-tightening bottom plate 61, and the cable passing cylinder 62 is vertically welded to the first cable passing port of the pre-tightening bottom plate 61; two ends of the pre-tightening cylinder 63 are open, the outer wall of the cable passing cylinder 62 is provided with an external thread, the inner wall of the pre-tightening cylinder 63 is provided with an internal thread matched with the external thread of the cable passing cylinder 62, so that the screw thread of the pre-tightening cylinder 63 can be connected to one end of the cable passing cylinder 62, which is far away from the pre-tightening bottom plate 61; one end of the pre-tightening head 64 is provided with a mounting groove 631, a bearing 632 is fixedly mounted in the mounting groove 631, and one end of the pre-tightening cylinder 63, which is far away from the cable passing cylinder 62, is mounted on an inner ring of the bearing 632, so that the pre-tightening head 64 can rotate relative to the pre-tightening cylinder 63. The bottom of the mounting groove 631 is provided with a second rope passing opening, and the second rope passing opening penetrates through the pre-tightening head 64.
In the process of installing the anchor cable 5, the end of the anchor cable 5 away from the soil foundation 105 is embedded in the corresponding crown beam 103/wale 104 and extends out of the corresponding crown beam 103/wale 104. Then, the pre-tightening seats 6 are installed on the corresponding crown beams 103/wales 104, so that the anchor cables 5 extend to the outer ends of the crown beams 103/wales 104 to be sequentially arranged at the first cable passing port, the cable passing cylinder 62, the pre-tightening cylinder 63 and the second cable passing port in a penetrating mode, and finally the anchor cables 5 and the pre-tightening heads 64 are fixed. After the anchor cable 5 is fixed, the pre-tightening cylinder 63 is adjusted by rotating the adjusting pre-tightening cylinder 63, so that the pre-tightening cylinder 63 moves and is adjusted towards the end far away from the cable cylinder 62, the anchor cable 5 is pulled to be pre-tightened, and the tensioning force of the anchor cable 5 on the crown beam 103/the waist beam 104 is further improved.
In this embodiment, the cable passing cylinder 62 is further connected with a second locking nut 65 through a thread, and after the position of the pre-tightening cylinder 63 is adjusted, the second locking nut 65 is screwed so that the second locking nut 65 is abutted against the pre-tightening cylinder 63, so that the pre-tightening cylinder 63 is not easy to rotate relative to the cable passing cylinder 62, and the connection stability between the pre-tightening cylinder 63 and the cable passing cylinder 62 is improved.
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: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides a reinforced structure in pit of foundation ditch support which characterized in that: the top bracing mechanism (106) comprises a top bracing frame (1) braced at the bottom of the waist beam (104), a top bracing seat (2) supported at the bottom side of the foundation pit (100) and a top bracing rod (3) arranged between the top bracing frame (1) and the top bracing seat (2), wherein the top of the top bracing rod (3) is supported and connected with the top bracing frame (1), and the bottom of the top bracing rod (3) is supported and connected with the top bracing seat (2); the top bracing frame (1) comprises a top bracing plate (11), side bracing plates (12) and a back bracing plate (13), the top bracing plate (11) is braced at the bottom of the waist beam (104), the side bracing plate (12) is braced on the side wall of the supporting pile (102), the back bracing plate (13) is fixed between the top bracing plate (11) and the side bracing plates (12), and the top bracing of the top bracing plate (3) is connected to the back bracing plate (13).
2. The in-pit reinforcing structure for an excavation supporting according to claim 1, wherein: the top brace rod (3) comprises a top barrel (31), a bottom barrel (32) and a double-end adjusting screw rod (33), the two-end threads of the double-end adjusting screw rod (33) are opposite in rotating direction, the top barrel (31) and the bottom barrel (32) are respectively in threaded connection with the two ends of the double-end adjusting screw rod (33), the top barrel (31) is far away from one end of the double-end adjusting screw rod (33) and is hinged to the backboard, and the bottom barrel (32) is far away from one end of the double-end adjusting screw rod (33) and is hinged to the top brace seat (2).
3. The in-pit reinforcing structure for an excavation supporting according to claim 2, wherein: the double-end adjusting screw (33) both ends are all threaded connection has first lock nut (34), and two first lock nut (34) are used for strengthening locking top section of thick bamboo (31) and end section of thick bamboo (32) respectively.
4. The in-pit reinforcing structure for an excavation supporting according to claim 2, wherein: the top bracing mechanism (106) further comprises an auxiliary bracing rod (4), the top support of the auxiliary bracing rod (4) is hinged to one end, close to the double-end adjusting screw (33), of the top cylinder (31), and the bottom support of the auxiliary bracing rod (4) is arranged on the bottom side of the foundation pit (100).
5. The in-pit reinforcing structure for an excavation supporting according to claim 1, wherein: a plurality of reinforcing rib plates (14) are arranged between the top bracing plate (11) and the side bracing plate (12).
6. The in-pit reinforcing structure for an excavation supporting according to claim 1, wherein: the foundation pit supporting structure is characterized by further comprising a bracing mechanism (107), wherein the bracing mechanism (107) comprises two anchor cables (5) which respectively brace the crown beam (103) and the waist beam (104), one end of each anchor cable (5) is obliquely inserted into a soil foundation (105) on the periphery of the foundation pit (100), and the other end of each anchor cable (5) is respectively fixed on the corresponding crown beam (103)/waist beam (104).
7. The in-pit reinforcing structure for an excavation supporting according to claim 6, wherein: the pre-tightening seat (6) is installed on each of the crown beam (103) and the girth beam (104), each pre-tightening seat (6) comprises a pre-tightening bottom plate (61), a cable passing cylinder (62), a pre-tightening cylinder (63) and a pre-tightening head (64), the pre-tightening bottom plates (61) are fixedly installed on the corresponding crown beam (103)/girth beam (104), the cable passing cylinders (62) are fixed at one ends, deviating from the corresponding crown beam (103)/girth beam (104), of the pre-tightening cylinders (63), the pre-tightening cylinders (63) are in threaded connection with one sides, far away from the pre-tightening bottom plates (61), of the cable passing cylinders (62), of the pre-tightening heads (64) are rotatably installed at one ends, far away from the soil foundation (105), of the anchor cables (5) penetrate through the cable passing cylinders (62) and the pre-tightening cylinders (63) and are fixed on the pre-tightening heads (64).
8. The in-pit reinforcing structure for an excavation supporting of claim 7, wherein: and a second locking nut (65) is connected to the cable passing cylinder (62) in a threaded manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220620325.XU CN216865192U (en) | 2022-03-21 | 2022-03-21 | Pit internal reinforcement structure for foundation pit support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220620325.XU CN216865192U (en) | 2022-03-21 | 2022-03-21 | Pit internal reinforcement structure for foundation pit support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216865192U true CN216865192U (en) | 2022-07-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220620325.XU Active CN216865192U (en) | 2022-03-21 | 2022-03-21 | Pit internal reinforcement structure for foundation pit support |
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| Country | Link |
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| CN (1) | CN216865192U (en) |
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- 2022-03-21 CN CN202220620325.XU patent/CN216865192U/en active Active
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