Stable foundation pit structure

Abstract

The utility model relates to a stable foundation pit structure which comprises a foundation pit body prearranged on the ground, a protection plate structure is arranged on the inner side wall of the foundation pit body, and the protection plate structure comprises main plate bodies arranged oppositely and auxiliary plate bodies arranged oppositely; transverse grooves are formed in the middle of the main plate body and the middle of the auxiliary plate body, transverse columns are arranged in the transverse grooves, a reinforcing fence is arranged on a top opening of the foundation pit body and comprises a stabilizing ring arranged in the foundation pit body and a fixing ring arranged on the top face of the stabilizing ring, and the outer wall of the stabilizing ring is attached to the side wall, close to an inner cavity of the foundation pit body, of the main plate body or the auxiliary plate body. The fixing ring is fixed on the stabilizing ring; the outer ring of the fixing ring is fixed on the ground; the reinforcing fence further comprises a reinforcing plate attached to the side, away from the inner wall of the foundation pit body, of the transverse column, and the top end of the reinforcing plate is fixed to the stabilizing ring. The transverse columns and the reinforcing fences reinforce and support the middle portions and the top openings of the main plate body and the auxiliary plate body, the lateral pressure resistance of the protection plate structure is improved, the foundation pit is conveniently filled with filler for compaction, the stability of the foundation pit is good, and the stability of a building is improved.

Description

Technical Field

[0001] The present application relates to the field of foundation pits, and in particular to a stable foundation pit structure. Background Art

[0002] The foundation pit is a pit excavated at the foundation design location according to the base elevation and foundation plane dimensions. The pit is then filled and compacted to make the building construction more stable above the foundation pit. A large part of the stability of the building depends on the stability of the foundation pit.

[0003] Guard plates are usually installed on the inner wall of the foundation pit. When the foundation pit is under construction, the outer soil on the upper part of the foundation pit will exert a certain internal pressure on the inner direction of the foundation pit. The support point of the guard plate is located at the bottom of the foundation pit, which leads to the poor ability of the top of the guard plate to resist the lateral pressure. The guard plate is prone to tilt, resulting in a decrease in the supporting strength of the guard plate, affecting the stability of the foundation. Utility Model Content

[0004] In order to improve the lateral pressure resistance of the guard plate, the present application provides a stable foundation pit structure.

[0005] The present application provides a stable foundation pit structure, which adopts the following technical solution:

[0006] A stable foundation pit structure, comprising a foundation pit body preset on the ground, a guard plate structure provided on the inner side wall of the foundation pit body, the guard plate structure comprising a main plate body and a sub-plate body provided opposite to each other; a transverse groove is provided in the middle of the main plate body and the sub-plate body, a transverse column is provided in the transverse groove, a reinforced enclosure is provided at the top of the foundation pit body, the reinforced enclosure comprises a stabilizing ring provided in the foundation pit body and a fixing ring provided on the top surface of the stabilizing ring, the outer wall of the stabilizing ring is in contact with the side wall of the main plate body or the sub-plate body close to the inner cavity of the foundation pit body, the fixing ring is fixed to the stabilizing ring, and the outer ring of the fixing ring is fixed to the ground;

[0007] The reinforced enclosure also includes a reinforcement plate, which is attached to the side of the cross column away from the inner wall of the foundation pit body, and the top of the reinforcement plate is fixed to the stabilization ring.

[0008] By adopting the above technical solution, the horizontal column supports the middle of the main body and the auxiliary plate, improving the ability of the main body and the auxiliary plate to resist lateral pressure. The stabilizing ring supports the top of the main body and the auxiliary plate, improving the ability of the top opening to resist lateral pressure. The fixing plate is fixed on the ground to make the stabilizing ring stable and strengthen the strength of the stabilizing ring. The fixing ring can also limit the top opening of the foundation pit, which has the function of limiting soil. The reinforcement plate improves the tightness of the connection between the main body, the auxiliary plate and the horizontal column, so that the strength of the main body and the auxiliary plate is enhanced.

[0009] The present application scheme strengthens the support for the middle and top of the main plate body and the auxiliary plate body through cross columns and reinforced enclosures. After the lateral pressure is transmitted to the main plate body or the auxiliary plate body, the pressure is transmitted to the stabilizing ring. The stabilizing ring is positioned by the fixing ring so that the fixing ring is not easily deformed, thereby making the main plate body or the auxiliary plate body not easily deformed or tilted, making the foundation pit body stable, improving the lateral pressure resistance of the guard plate structure, facilitating the filling of fillers into the foundation pit for compaction, making the foundation pit stable, and improving the stability of the building.

[0010] Optionally, vertical grooves for accommodating reinforcement plates are provided on the main plate body and the sub-plate body, and reinforcement grooves for accommodating reinforcement plates are provided on the side of the horizontal column facing the inner cavity of the foundation pit body. The reinforcement plates are embedded in the vertical grooves and the reinforcement grooves, and the side of the reinforcement plates facing the inner cavity of the foundation pit body is flush with the side of the main plate body or the sub-plate body facing the inner cavity of the foundation pit body.

[0011] By adopting the above technical solution, the reinforcement plates are embedded in the vertical grooves and the reinforcement grooves, so that the inner cavity of the foundation pit body is flat, which facilitates the filling of fillers and makes the fillers uniform.

[0012] Optionally, the cross column includes a concrete exterior and a steel bar disposed inside the concrete exterior, and the steel bar is disposed transversely.

[0013] By adopting the above technical solution, by arranging transverse steel bars in the transverse column, the strength of the transverse column is improved, the transverse column is not easy to break, and the supporting performance of the transverse column is improved.

[0014] Optionally, a pile hole is formed on the outer peripheral wall of the top surface of the fixing ring, a fixing pile is inserted into the pile hole, and a pile tip is provided at the bottom end of the fixing pile.

[0015] By adopting the above technical solution, the fixing pile is inserted into the pile hole of the fixing ring, which facilitates the second fixing hole of the fixing ring and also facilitates the removal of the fixing ring.

[0016] Optionally, the stabilizing ring and the fixing ring are both wooden rings or both plastic rings, the top surface of the stabilizing ring is flush with the ground, and the inner circumference of the fixing ring is fixed to the stabilizing ring by nails.

[0017] By adopting the above technical solution, the stabilizing ring and the fixing ring are both wooden rings or plastic rings, which is convenient. The two are fixed by nails. When the foundation pit is filled, a lifting tool is used to lift the fixing ring off the stabilizing ring. At this time, the top surface of the stabilizing ring is flush with the ground, and the fixing ring is not easy to interfere with subsequent construction.

[0018] Optionally, the main plate body and the auxiliary plate body are precast concrete plates.

[0019] By adopting the above technical solution, the main plate body and the auxiliary plate body are easy to produce with low cost and good strength. After the concrete is solidified, the prefabricated concrete panels are transported to the construction site for direct installation, thus shortening the construction time.

[0020] Optionally, the thickness of the main board body and the sub-board body is 8-20 cm.

[0021] By adopting the above technical solution, it is convenient to open vertical grooves at this thickness and maintain good strength.

[0022] Optionally, abutment grooves are provided at ends of the main plate body that are horizontally away from each other and face the inner cavity of the main body of the foundation pit, and the abutment grooves are used for abutment of the ends of the auxiliary plate body.

[0023] By adopting the above technical solution, when the main plate body and the auxiliary plate body are subjected to lateral pressure, the ends of the two limit each other, so that the main plate body and the auxiliary plate body are connected more tightly and are not easily displaced, thereby improving the tightness of the connection and improving the strength of the foundation pit structure.

[0024] In summary, the present application includes at least one of the following beneficial technical effects:

[0025] 1. The horizontal columns and reinforced enclosures strengthen the support for the middle and top of the main plate and the auxiliary plate, improve the lateral pressure resistance of the guard plate structure, facilitate the filling of fillers into the foundation pit for compaction, make the foundation pit stable, and improve the stability of the building;

[0026] 2. The reinforcement plate is embedded in the vertical groove and the reinforcement groove to make the inner cavity of the foundation pit flat, which is convenient for filling the filler and makes the filler uniform;

[0027] 3. The steel bars increase the strength of the horizontal column, making it less likely to break and providing better support. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is an overall schematic diagram of the stability foundation pit structure of an embodiment of the present application.

[0029] Figure 2 It is an exploded view of the guard plate structure and the reinforced enclosure of the embodiment.

[0030] Figure 3 Schematic diagram of the structure of the horizontal column of the embodiment.

[0031] Explanation of the reference numerals in the accompanying drawings: 1. main body of the foundation pit; 2. guard plate structure; 21. main body; 211. abutment groove; 22. sub-plate body; 221. convex strip; 3. transverse groove; 4. transverse column; 41. concrete exterior; 42. steel bar; 5. reinforced enclosure; 51. stabilizing ring; 52. fixing ring; 521. pile hole; 53. fixed pile; 531. pile tip; 532. nail; 54. reinforcement plate; 6. vertical groove; 7. reinforcement groove. DETAILED DESCRIPTION

[0032] The present application is further described in detail below with reference to the accompanying drawings and embodiments.

[0033] The present application embodiment discloses a stable foundation pit structure. Figure 1 The stability foundation pit structure includes a foundation pit body 1 preset on the ground, and a guard plate structure 2 is arranged on the inner wall of the foundation pit body 1. The guard plate structure 2 includes two main plate bodies 21 arranged oppositely and two auxiliary plate bodies 22 arranged oppositely, and the ends of the main plate body 21 and the auxiliary plate body 22 are connected to form a ring-shaped guard plate structure 2.

[0034] Reference Figure 2 The thickness of the main plate 21 and the auxiliary plate 22 is 8-20 cm, and the thickness of the main plate 21 and the auxiliary plate 22 in the embodiment is 15 cm. The ends of the main plate 21 facing the inner cavity of the foundation pit body 1 in the horizontal direction are provided with abutment grooves 211, and the length direction of the abutment grooves 211 is vertical. The auxiliary plate 22 includes convex strips 221 integrally formed at both ends of the auxiliary plate 22 in the horizontal direction, and the convex strips 221 are limited in the abutment grooves 211, so that the ends of the auxiliary plate 22 are limited in the abutment grooves 211.

[0035] Reference Figure 2 , Figure 3 A transverse groove 3 is provided in the middle of the main plate body 21 and the auxiliary plate body 22, and the length direction of the transverse groove 3 is horizontal. A transverse column 4 is embedded in the transverse groove 3, which is convenient for installing the transverse column 4 and positioning the transverse column 4. The transverse column 4 is obtained by pouring, and the transverse column 4 includes a concrete outer portion 41 and a plurality of steel bars 42 fixed in the concrete outer portion 41. The plurality of steel bars 42 are arranged horizontally, so that the vertical and horizontal columns 4 are not easy to break.

[0036] Reference Figure 1 , Figure 2 The top of the foundation pit body 1 is fixed with a reinforced enclosure 5, which includes a stabilizing ring 51 arranged in the foundation pit body 1 and a fixing ring 52 arranged on the top surface of the stabilizing ring 51. The stabilizing ring 51 and the fixing ring 52 are both wooden rings or plastic rings. The top surface of the stabilizing ring 51 is flush with the ground, and the inner circumference of the fixing ring 52 is fixed to the top surface of the stabilizing ring 51 by nails 532. The outer ring of the fixing ring 52 is fixed to the ground, and the outer peripheral wall of the top surface of the fixing ring 52 is provided with a pile hole 521, and a fixing pile 53 is inserted in the pile hole 521. The bottom end of the fixing pile 53 is integrally formed with a pile tip 531, and the pile tip 531 is inserted into the ground, so that the fixing plate is fixed to the ground and is not easily displaced. The outer wall of the stabilizing ring 51 fits the side wall of the main plate body 21 or the auxiliary plate body 22 close to the inner cavity of the foundation pit body 1.

[0037] Reference Figure 1 , Figure 2The reinforced enclosure 5 also includes a reinforcing plate 54, which is attached to the side of the horizontal column 4 away from the inner wall of the foundation pit body 1, and the top of the reinforcing plate 54 is fixed to the stabilizing ring 51. The side walls of the main body 21 and the auxiliary plate 22 facing the inner cavity of the foundation pit body 1 are provided with vertical grooves 6 for accommodating the reinforcing plate 54, and the side of the horizontal column 4 facing the inner cavity of the foundation pit body 1 is provided with a reinforcing groove 7 for accommodating the reinforcing plate 54, and the reinforcing plate 54 is embedded in the vertical grooves 6 and the reinforcing grooves 7. The side of the reinforcing plate 54 facing the inner cavity of the foundation pit body 1 is flush with the side of the main body 21 or the auxiliary plate 22 facing the inner cavity of the foundation pit body 1. The reinforcing plate 54 improves the tightness of the connection between the main body 21, the auxiliary plate 22 and the horizontal column 4, and also makes it difficult for the horizontal column 4 to be separated from the horizontal groove 3, so that the main body 21 and the auxiliary plate 22 are reinforced and stabilized.

[0038] The implementation principle of a stable foundation pit structure in an embodiment of the present application is as follows: the horizontal column 4 strengthens the support of the middle part of the main plate body 21 and the auxiliary plate body 22, and the reinforced enclosure 5 strengthens the support of the top of the main plate body 21 and the auxiliary plate body 22. After the lateral pressure is transmitted to the main plate body 21 or the auxiliary plate body 22, the pressure is transmitted to the fixed plate, and the fixed plate transmits the pressure to the stabilizing ring 51. The stabilizing ring 51 is positioned by the fixing ring 52 so that the fixing ring 52 is not easily deformed, thereby making the main plate body 21 or the auxiliary plate body 22 not easily deformed, making the foundation pit body 1 stable, improving the lateral pressure resistance of the guard plate structure 2, facilitating the filling of fillers into the foundation pit for compaction, making the foundation pit stable, and improving the stability of the building.

[0039] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A stable foundation pit structure, comprising a foundation pit body (1) preset on the ground, and a guard plate structure (2) arranged on the inner side wall of the foundation pit body (1), characterized in that: The guard plate structure (2) comprises a main plate body (21) and a sub-plate body (22) arranged opposite to each other; a transverse groove (3) is provided in the middle of the main plate body (21) and the sub-plate body (22); a transverse column (4) is provided in the transverse groove (3); a reinforced enclosure (5) is provided at the top of the foundation pit body (1); the reinforced enclosure (5) comprises a stabilizing ring (51) arranged in the foundation pit body (1) and a fixing ring (52) arranged on the top surface of the stabilizing ring (51); the outer wall of the stabilizing ring (51) is in contact with the side wall of the main plate body (21) or the sub-plate body (22) close to the inner cavity of the foundation pit body (1); the fixing ring (52) is fixed to the stabilizing ring (51); and the outer ring of the fixing ring (52) is fixed to the ground; The reinforced enclosure (5) further comprises a reinforcing plate (54), wherein the reinforcing plate (54) is attached to a side of the transverse column (4) away from the inner wall of the foundation pit body (1), and the top end of the reinforcing plate (54) is fixed to the stabilizing ring (51).

2. The stability foundation pit structure according to claim 1, characterized in that: The main plate body (21) and the auxiliary plate body (22) are provided with vertical grooves (6) for accommodating the reinforcement plate (54); the side of the transverse column (4) facing the inner cavity of the foundation pit body (1) is provided with a reinforcement groove (7) for accommodating the reinforcement plate (54); the reinforcement plate (54) is embedded in the vertical groove (6) and the reinforcement groove (7); the side of the reinforcement plate (54) facing the inner cavity of the foundation pit body (1) is flush with the side of the main plate body (21) or the auxiliary plate body (22) facing the inner cavity of the foundation pit body (1).

3. The stability foundation pit structure according to claim 1, characterized in that: The transverse column (4) comprises a concrete outer portion (41) and a steel bar (42) arranged inside the concrete outer portion (41), wherein the steel bar (42) is arranged transversely.

4. The stability foundation pit structure according to claim 1, characterized in that: A pile hole (521) is provided on the outer peripheral wall of the top surface of the fixing ring (52), a fixing pile (53) is inserted into the pile hole (521), and a pile tip (531) is provided at the bottom end of the fixing pile (53).

5. The stability foundation pit structure according to claim 1, characterized in that: The stabilizing ring (51) and the fixing ring (52) are both wooden rings or plastic rings. The top surface of the stabilizing ring (51) is flush with the ground, and the inner circumference of the fixing ring (52) is fixed to the stabilizing ring (51) by nails (532).

6. The stability foundation pit structure according to claim 1, characterized in that: The main plate body (21) and the auxiliary plate body (22) are prefabricated concrete plates.

7. The stability foundation pit structure according to claim 1, characterized in that: The thickness of the main plate body (21) and the auxiliary plate body (22) is 8-20 cm.

8. The stability foundation pit structure according to claim 1, characterized in that: The ends of the main plate body (21) that are away from each other in the horizontal direction and face the inner cavity of the foundation pit main body (1) are provided with abutment grooves (211), and the ends of the auxiliary plate body (22) abut against the abutment grooves (211).

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