Upward-floating deformation basement inclination rectifying device and inclination rectifying method

Abstract

The invention discloses an inclination rectifying device and an inclination rectifying method for a floating deformation basement, and aims to provide the inclination rectifying device and the inclination rectifying method for the floating deformation basement, which are used for forcing a floating basement bottom plate to fall back to the original design elevation through active loading. A floating deformation basement inclination rectifying device comprises an uplift pile arranged in a foundation below a bottom plate of a basement, and the top of the uplift pile is provided with an uplift steel bar; the counter-force beam is located above the bottom plate, and the anti-pulling steel bars are connected with the counter-force beam; and the jack is arranged between the bottom plate and the counter-force beam. The inclination rectifying method using the upward-floating deformation basement inclination rectifying device comprises the following steps that A, uplift pile construction is conducted; mounting a counter-force beam and a jack; b, a hole is formed in a set position of the bottom plate, and then drilling and soil taking are conducted on a soil layer with the set depth H; and C, the jack is loaded, the upper end of the jack abuts against the counter-force beam, and the bottom plate of the basement is forced to fall back.

Description

Technical Field

[0001] The present invention relates to the field of building tilt correction, and in particular to a tilt correction device and a tilt correction method for a floating deformed basement. Background Art

[0002] Due to varying geological and hydrological conditions, in recent years, some regions have frequently experienced damage from the complete or partial uplift of basements. The causes of this uplift vary, ranging from actual groundwater levels exceeding the design level for anti-uplift to quality defects in the construction of anti-pull piles. Furthermore, the backfill quality of fertilizer troughs on the basement's exterior walls often falls short of design requirements, allowing rainwater to seep into the troughs, creating a "basin effect" around the basement. Ultimately, the buoyancy of the structure exceeds its resistance, leading to uplift.

[0003] After a basement is floated, temporary drainage is often used to induce a return to the basement. However, in practice, this often presents difficulties due to changes in the underground structure. For example, Chinese Patent Publication No. CN118704531A, entitled "Energy-Saving and Water-Reducing Device and Construction Method for Preventing Basement Floating," removes excess groundwater and reduces buoyancy during normal building use, preventing damage caused by factors such as the basin effect. However, this patent also presents difficulties with temporary drainage due to changes in the underground structure after the basement is floated. Summary of the Invention

[0004] The purpose of the present invention is to provide a floating deformation basement tilt correction device and tilt correction method that can force the floating basement floor to fall back to the original design elevation through active loading.

[0005] The technical solution of the present invention is: A floating deformation basement tilt correction device, comprising: Pull-out piles are set in the foundation below the basement floor, with pull-out reinforcement bars on top; Reaction beam, located above the base plate, with pull-out reinforcement connected to the reaction beam; The jack is installed between the base plate and the reaction beam. The specific use of the floating deformation basement tilt correction device of this solution is as follows: through the jack loading, the upper end of the jack rests on the reaction beam, forcing the basement basement floor to fall back. When the basement floor falls back to the original design elevation, the jack stops working. The floating deformation basement tilt correction device of this solution uses the jack loading method to force the basement basement floor to fall back, thereby reliably returning the floating basement floor to the original design elevation.

[0006] As an option, it also includes: The base is supported on the bottom plate and is provided with a vertical guide column, the upper end of the vertical guide column being higher than the upper end of the pull-out steel bar; The limit nut is threadedly connected to the vertical guide column. The reaction beam is provided with a guide hole. The vertical guide column passes through the guide hole. The limit nut is located above the reaction beam. The jack is located between the base and the reaction beam. The pull-out steel bar is connected to the reaction beam through an anchor or a connecting nut. In the process of forcing the basement floor to fall back due to the jack loading, the bottom plate may fall back and settle too far, which may be an overcorrection. The bottom plate may settle below the original design elevation, affecting the normal use of the building. In order to solve this problem, this solution improves the upward deformation basement tilt correction device. Specifically, Before the jack is loaded, the actual floating height of the basement floor is measured, and the distance between the limit nut and the reaction beam is adjusted according to the actual floating height of the basement floor (the distance between the limit nut and the reaction beam is consistent with the actual floating height of the basement floor); then, the jack is loaded, and the upper end of the jack rests on the reaction beam, forcing the basement floor to fall back until the limit nut rests on the reaction beam. At this time, the basement floor falls back to the original design elevation, and because the limit nut rests on the reaction beam, the basement floor will stop falling back and settling. Based on this, the floating deformation basement tilt correction device of this scheme can, on the one hand, force the basement floor to fall back to the original design elevation, and on the other hand, it can avoid the problem that the basement floor may fall back and settle too far, overcorrecting, and the basement floor settles below the original design elevation, thus affecting the normal use of the building.

[0007] As a preferred embodiment, a linkage mechanism is further included, wherein the reaction beam is provided with a beam through hole for the pull-out reinforcement to pass through, and the upper end of the vertical guide column is conical or hemispherical, and the linkage mechanism includes: a sliding member, which is radially slidably connected to the reaction beam along the guide hole, and is provided with a trigger rod and a blocking member, wherein the trigger rod extends into the guide hole; The elastic element drives the sliding member to slide so as to move the trigger rod into the guide hole; Before the vertical guide column is inserted into the beam through-hole, and before the pull-out steel bar is inserted into the beam through-hole, the blocking member blocks at least a portion of the beam through-hole to prevent the pull-out steel bar from passing through the beam through-hole. Although the addition of the base, vertical guide column and limit nut can avoid the problem of the bottom plate falling back and settling too far, which is an overcorrection; however, in the actual construction process, due to the laziness or negligence of the workers, when installing the floating deformation basement correction device, they do not or forget to install the base, and directly place the jack on the basement floor, and then use the jack to load and force the basement floor to fall back, which makes the limit nut unable to work, resulting in the basement floor falling back and settling too far, which is an overcorrection. In order to solve this problem, this solution specially sets up a linkage mechanism. Specifically, When installing the floating deformed basement tilt correction device, if the base is to be installed, then at this time, the sliding part, under the action of the elastic element, causes the trigger rod to move into the guide hole and into position, and at the same time causes the blocking part to block a part of the beam through-hole to prevent the pull-out steel bar from passing through the beam through-hole; the pull-out steel bar is blocked by the blocking part and cannot pass through the beam through-hole from bottom to top, so that the reaction beam cannot be installed normally and the reaction beam cannot be connected to the pull-out steel bar; thereby forcing the operator to install the floating deformed basement tilt correction device in accordance with the specification, supporting the base on the bottom plate; lowering the reaction beam along the vertical guide column. During this process, when the upper end of the vertical guide column passes through the guide hole, the trigger rod rests on the vertical guide column, and the blocking part is located on one side of the beam through-hole to allow the pull-out steel bar to pass through the beam through-hole; then, the pull-out steel bar passes through the beam through-hole, and then the pull-out steel bar and the reaction beam are connected through anchors or connecting nuts; thereafter, the bottom plate of the basement is forced to fall back by loading with a jack. Therefore, the linkage mechanism of this scheme can avoid the problem that the limit nut cannot work due to the laziness or negligence of the operators when installing the floating deformed basement correcting device, without affecting the normal installation and use of the floating deformed basement correcting device.

[0008] Preferably, the pull-out pile includes a cement-soil pile and a steel pipe inserted in the cement-soil pile, and the outer wall of the steel pipe is provided with a plurality of vertically distributed blades.

[0009] Preferably, a steel bar mounting seat is provided on the top of the steel pipe, and the lower end of the pull-out steel bar is connected to the steel bar mounting seat, so as to facilitate the installation of the pull-out steel bar.

[0010] Preferably, there are two jacks, and the two jacks are distributed on both sides of the tensile steel bar.

[0011] A method for correcting the tilt of a basement using a floating deformation correcting device comprises the following steps: A. Anti-pullout pile construction: drill pile holes on the basement floor, and construct anti-pullout piles in the foundation below the basement through the pile holes; Install reaction beams and jacks; B. Drill holes at set locations on the base plate, and then drill holes to sample soil at a set depth H; Pile top flushing: Use water jets to jet-jet the tops of existing engineering piles within the designated area of the basement to remove the soil between the pile tops and the base plate; C. Jack loading, with the upper end of the jack resting on the reaction beam, forces the basement floor back down. This solution utilizes a tilt correction method for a floating, deformable basement floor using jack loading to force the basement floor back down, thus reliably returning the floating basement floor to its original design elevation.

[0012] A method for correcting the tilt of a basement using a floating deformation correcting device comprises the following steps: A. Anti-pullout pile construction: drill pile holes on the basement floor, and construct anti-pullout piles in the foundation below the basement through the pile holes; Support the base on the base plate; Lower the reaction beam along the vertical guide column. During this process, when the upper end of the vertical guide column passes through the guide hole, the trigger rod abuts against the vertical guide column, and the blocking piece is located on one side of the beam through hole, so that the pull-out steel bar can pass through the beam through hole. Then, the pull-out steel bar passes through the beam through hole, and then the pull-out steel bar and the reaction beam are connected by anchors or connecting nuts. Adjust the distance between the limit nut and the reaction beam according to the actual floating height of the basement floor; Place the jack between the base and the reaction beam; C. Jack loading, with the upper end of the jack resting on the reaction beam, forces the basement floor back down. This solution utilizes a tilt correction method for a floating, deformable basement floor using jack loading to force the basement floor back down, thus reliably returning the floating basement floor to its original design elevation.

[0013] Preferably, the following steps are included between steps A and C: B. Drilling soil: Holes are drilled at designated locations on the baseplate, and soil is then drilled to a depth of H. By drilling soil at a depth of H, the density of the soil surrounding the deep soil sampling point is reduced. Because the upper soil layer exerts a certain amount of deadweight stress on the deeper soil, the upper silty soil gradually compacts and consolidates over time due to its excellent plastic properties. With the upper load remaining unchanged, the bearing capacity of the foundation is reduced, causing the underlying soil to sink, thus facilitating forced landing and correction.

[0014] Preferably, step B further comprises: Pile top flushing: Water jets are used to jet-jet the tops of existing engineering piles within the designated area of the basement, removing the soil between the pile tops and the base plate. This jet-jet method removes the soil between the pile tops and the base plate, facilitating the corrective action for forced landing.

[0015] The beneficial effect of the present invention is that the floating basement floor is forced to reliably fall back to the original design elevation through the occurrence of active loading. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a floating deformable basement tilt correction device in a specific embodiment 1 of the present invention during actual construction.

[0017] Figure 2 It is a structural schematic diagram of a floating deformable basement tilt correction device in the actual construction process in the specific embodiment 2 of the present invention.

[0018] Figure 3 It is a schematic cross-sectional structure diagram of the reaction beam in the second specific embodiment of the present invention.

[0019] Figure 4 It is a schematic diagram of the drilling and soil taking steps of the present invention.

[0020] Figure 5 It is a schematic diagram of the pile top flushing step of the present invention.

[0021] In the picture: Pull-out pile 1, cement-soil pile 1.1, steel pipe 1.2, steel bar mounting base 1.3; Reaction beam 2, beam through hole 2.1, guide hole 2.2, vertical guide sleeve 2.3; Jack 3; Tensile reinforcement 4; Bottom plate 5; Base 6; Vertical guide column 7; Limit nut 8; Linkage mechanism 9, sliding member 9.1, trigger rod 9.2, shielding member 9.3, elastic element 9.4, horizontal guide sleeve 9.5, horizontal guide rod 9.6, stopper 9.7; Existing engineering piles 10; Spray rod 11. DETAILED DESCRIPTION

[0022] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments: Specific embodiment 1, as Figure 1 As shown, a floating deformation basement tilt correction device includes a pull-out pile 1, a reaction beam 2 and a jack 3.

[0023] The anti-pulling pile 1 is arranged in the foundation below the basement floor 5. The top of the anti-pulling pile 1 is provided with an anti-pulling steel bar 4.

[0024] The reaction beam 2 is located above the bottom plate 5. The pull-out reinforcement 4 is connected to the reaction beam 2.

[0025] In one example, the pull-out steel bar 4 is connected to the reaction beam 2 via an anchor.

[0026] In another example, the pull-out reinforcement 4 is connected to the reaction beam 2 via a connecting nut. The connecting nut is threaded to the pull-out reinforcement 4. There is one connecting nut, positioned above the reaction beam 2. During loading by the jack 3, the reaction beam 2 rests against the connecting nut. Alternatively, there are two connecting nuts, with the reaction beam 2 secured between them.

[0027] The jacks 3 are disposed between the base plate 5 and the reaction beam 2. In this embodiment, the jacks 3 are hydraulic jacks, and there are two jacks 3, one on each side of the pull-out reinforcement 4. It should be noted that the actual number of jacks 3 can be 1 or 3-6 depending on actual needs.

[0028] The specific operation of the floating, deformable basement tilt-correcting device of this embodiment is as follows: Jacks 3 are loaded, and the upper ends of jacks 3 rest against reaction beams 2, forcing the basement floor 5 back down. When the floor 5 returns to its original design elevation, jacks 3 cease operation. This embodiment of the floating, deformable basement tilt-correcting device, by using jacks 3 to load the basement floor 5, reliably returns the floating basement floor 5 to its original design elevation.

[0029] Furthermore, the pull-out pile 1 comprises a cement-soil pile 1.1 and a steel pipe 1.2 inserted within the cement-soil pile 1.1. The outer wall of the steel pipe 1.2 is provided with a plurality of vertically distributed blades. The steel pipe 1.2 is vertically distributed. In actual construction, a pile hole is pre-drilled in the basement 5. Then, a high-pressure jet grouting drill is used to cut the soil from bottom to top, forming the cement-soil pile 1.1. Next, before the cement-soil pile 1.1 solidifies, the steel pipe 1.2 is pressed into the cement-soil pile 1.1, thereby forming the pull-out pile 1 in the foundation soil layer below the basement's basement 5.

[0030] Furthermore, a steel bar mounting seat 1.3 is provided on the top of the steel pipe 1.2. The lower end of the pull-out steel bar 4 is connected to the steel bar mounting seat 1.3. This facilitates the installation of the pull-out steel bar 4.

[0031] In one example, the lower end of the anti-pulling steel bar 4 is connected to the steel bar mounting seat 1.3 by screw threads.

[0032] In another example, the lower end of the pull-out steel bar 4 is connected to the steel bar mounting seat 1.3 through a nut assembly. The nut assembly includes two upper and lower mounting nuts, which are threadedly connected to the pull-out steel bar 4, and the mounting seat is locked between the upper and lower mounting nuts.

[0033] In the third example, the lower end of the tensile reinforcement 4 is connected to the reinforcement mounting seat 1.3 by welding.

[0034] Specific embodiment 2, as Figure 2 、 Figure 3 As shown, a floating deformation basement tilt correction device includes a pull-out pile 1, a reaction beam 2, a base 6, a limit nut 8 and a jack 3.

[0035] The anti-pulling pile 1 is arranged in the foundation below the basement floor 5. The top of the anti-pulling pile 1 is provided with an anti-pulling steel bar 4.

[0036] A base 6 is supported on the bottom plate 5. Vertical guide posts 7 are provided on the base 6. In this embodiment, there are two vertical guide posts 7. The upper ends of the vertical guide posts 7 are higher than the upper ends of the pull-out reinforcement bars 4. Limit nuts 8 are threadedly connected to the vertical guide posts 7. Limit nuts 8 correspond one to one with the vertical guide posts 7.

[0037] The reaction beam 2 is located above the base plate 5. The reaction beam 2 is provided with guide holes 2.2, which correspond one-to-one with the vertical guide posts 7. The vertical guide posts 7 pass through the corresponding guide holes 2.2. A limit nut 8 is located above the reaction beam 2.

[0038] The pull-out reinforcement 4 is connected to the reaction beam 2 .

[0039] In one example, the pull-out steel bar 4 is connected to the reaction beam 2 via an anchor.

[0040] In another example, the pull-out reinforcement 4 is connected to the reaction beam 2 via a connecting nut. The connecting nut is threaded to the pull-out reinforcement 4. There is one connecting nut, positioned above the reaction beam 2. During loading by the jack 3, the reaction beam 2 rests against the connecting nut. Alternatively, there are two connecting nuts, with the reaction beam 2 secured between them.

[0041] The jacks 3 are disposed between the base plate 5 and the reaction beam 2. Specifically, the jacks 3 are located between the base 6 and the reaction beam 2. In this embodiment, the jacks 3 are hydraulic jacks. Two jacks 3 are provided, one on each side of the pull-out reinforcement 4. It should be noted that the actual number of jacks 3 can be 1 or 3-6 depending on actual needs.

[0042] The specific operation of the floating, deformable basement tilt-correcting device of this embodiment is as follows: Jacks 3 are loaded, and the upper ends of jacks 3 rest against reaction beams 2, forcing the basement floor 5 back down. When the floor 5 returns to its original design elevation, jacks 3 cease operation. This embodiment of the floating, deformable basement tilt-correcting device, by using jacks 3 to load the basement floor 5, reliably returns the floating basement floor 5 to its original design elevation.

[0043] On the other hand, when the jack loads and forces the basement floor 5 to fall back, the basement floor 5 may fall back too far, which may lead to overcorrection and cause the basement floor 5 to sink below the original design elevation, thus affecting the normal use of the building. In order to solve this problem, this embodiment improves the upward deformation basement tilt correction device. Specifically, Before the jack 3 is loaded, the actual floating height of the basement floor 5 is obtained by measuring, and the distance between the limit nut 8 and the reaction beam 2 is adjusted according to the actual floating height of the basement floor 5 (the distance between the limit nut 8 and the reaction beam 2 is consistent with the actual floating height of the basement floor 5); then, the jack 3 is loaded, and the upper end of the jack 3 is against the reaction beam 2, forcing the basement floor 5 to fall back. During this process, the base 6, the vertical guide column 7 and the limit nut 8 sink along with the basement floor 5 (the height of the reaction beam 2 remains unchanged) until the limit nut 8 is against the reaction beam 2. At this time, the basement floor 5 falls back to the original design elevation, and because the limit nut 8 is against the reaction beam 2, the basement floor 5 will stop falling back. Based on this, the floating deformable basement tilt correction device of this embodiment can, on the one hand, force the basement floor 5 to fall back to the original design elevation, and on the other hand, it can avoid the problem that the basement floor 5 may fall back and settle too far, overcorrecting, and the basement floor 5 sinks below the original design elevation, which affects the normal use of the building.

[0044] Furthermore, the pull-out pile 1 comprises a cement-soil pile 1.1 and a steel pipe 1.2 inserted within the cement-soil pile 1.1. The outer wall of the steel pipe 1.2 is provided with a plurality of vertically distributed blades. The steel pipe 1.2 is vertically distributed. In actual construction, a pile hole is pre-drilled in the basement 5. Then, a high-pressure jet grouting drill is used to cut the soil from bottom to top, forming the cement-soil pile 1.1. Next, before the cement-soil pile 1.1 solidifies, the steel pipe 1.2 is pressed into the cement-soil pile 1.1, thereby forming the pull-out pile 1 in the foundation soil layer below the basement's basement 5.

[0045] Furthermore, a steel bar mounting seat 1.3 is provided on the top of the steel pipe 1.2. The lower end of the pull-out steel bar 4 is connected to the steel bar mounting seat 1.3. This facilitates the installation of the pull-out steel bar 4.

[0046] In one example, the lower end of the anti-pulling steel bar 4 is connected to the steel bar mounting seat 1.3 by screw threads.

[0047] In another example, the lower end of the pull-out steel bar 4 is connected to the steel bar mounting seat 1.3 through a nut assembly. The nut assembly includes two upper and lower mounting nuts, which are threadedly connected to the pull-out steel bar 4, and the mounting seat is locked between the upper and lower mounting nuts.

[0048] In the third example, the lower end of the tensile reinforcement 4 is connected to the reinforcement mounting seat 1.3 by welding.

[0049] Furthermore, a floating deformed basement tilt correction device also includes a linkage mechanism 9. The reaction beam 2 is provided with a beam through hole 2.1 for the pull-out steel bar 4 to pass through. In this embodiment, the beam through hole 2.1 is located between two vertical guide columns 7. The pull-out steel bar 4 passes through the beam through hole 2.1. The upper end of the vertical guide column 7 is conical or hemispherical. The linkage mechanism 9 includes a sliding member 9.1 and an elastic element 9.4. The sliding member 9.1 is connected to the reaction beam 2 along the radial sliding of the guide hole 2.2. The sliding member 9.1 is provided with a trigger rod 9.2 and a shielding member 9.3. The trigger rod 9.2 extends into the guide hole 2.2. The shielding member 9.3 is used to shield the beam through hole 2.1. The elastic element 9.4 drives the sliding member 9.1 to slide so that the trigger rod 9.2 moves into the guide hole 2.2. Specifically, a vertical guide sleeve 2.3 is provided on the reaction beam 2, and the inner hole of the vertical guide sleeve 2.3 constitutes the guide hole 2.2. A side through-hole is provided on the side wall of the vertical guide sleeve 2.3. In this embodiment, the trigger rod 9.2 corresponds to the guide hole 2.2 one by one. The end of the trigger rod 9.2 extends into the guide hole 2.2 through the side through-hole. A horizontal guide sleeve 9.5 and a horizontal guide rod 9.6 that slides along the horizontal guide sleeve 9.5 are provided on the reaction beam 2. The horizontal guide rod 9.6 extends radially along the guide hole 2.2. The sliding member 9.1 is rod-shaped. The sliding member 9.1 is horizontally distributed. The sliding member 9.1 is fixedly connected to one end of the horizontal guide rod 9.6 so that the sliding member 9.1 can slide radially along the guide hole 2.2. A stopper 9.7 is provided at the other end of the horizontal guide rod 9.6. The elastic element 9.4 is a spring, which is sleeved on the horizontal guide rod 9.6 and is located between the horizontal guide sleeve 9.5 and the stopper 9.7. The trigger rod 9.2 and the shielding member 9.3 are located on the same side of the sliding member 9.1.

[0050] Before the vertical guide column 7 is inserted into the beam through hole 2.1 and the pull-out steel bar 4 is inserted into the beam through hole 2.1, the shielding member 9.3 shields at least a portion of the beam through hole 2.1 to prevent the pull-out steel bar 4 from passing through the beam through hole 2.1.

[0051] When the vertical guide column 7 passes through the beam through hole 2.1, the trigger rod 9.2 abuts against the vertical guide column 7, and the shielding member 9.3 is located on one side of the beam through hole 2.1, so that the pull-out steel bar 4 can pass through the beam through hole 2.1.

[0052] Although the addition of the base 6, vertical guide column 7 and limit nut 8 can avoid the problem of the bottom plate 5 falling back and settling too far, which is an overcorrection, in the actual construction process, due to laziness or negligence of the operators, when installing the floating deformation basement tilt correction device, they may not install or forget to install the base 6, and directly place the jack 3 on the basement ... When installing the floating deformation basement tilt correction device, if the base 6 is to be installed, then at this time, the sliding member 9.1, under the action of the elastic element 9.4, causes the trigger rod 9.2 to move into the guide hole 2.2 and at the same time causes the blocking member 9.3 to block a part of the beam through hole 2.1 to prevent the pull-out steel bar 4 from passing through the beam through hole 2.1; the pull-out steel bar 4 is blocked by the blocking member 9.3 and cannot pass through the beam through hole 2.1 from bottom to top, so that the reaction beam 2 cannot be installed normally and the reaction beam 2 cannot be connected to the pull-out steel bar 4; thereby forcing the operator to install the standard installation. Install the floating deformation basement tilt correction device, support the base 6 on the bottom plate 5; lower the reaction beam 2 along the vertical guide column 7. During this process, when the upper end of the vertical guide column 7 passes through the guide hole 2.2, the trigger rod 9.2 abuts against the vertical guide column 7, and the shielding member 9.3 is located on the side of the beam through hole 2.1, so that the pull-out steel bar 4 can pass through the beam through hole 2.1; then, the pull-out steel bar 4 passes through the beam through hole 2.1, and then the pull-out steel bar 4 is connected to the reaction beam 2 through an anchor or a connecting nut; thereafter, the jack 3 is used to load and force the base plate 5 of the basement to fall back. Therefore, the linkage mechanism 9 of this embodiment can avoid the problem that the limit nut 8 cannot work due to the operator's laziness or negligence when installing the floating deformation basement tilt correction device without affecting the normal installation and use of the floating deformation basement tilt correction device.

[0053] Specific embodiment three is a method for correcting the tilt of a basement using a floating and deformable basement correction device. The specific structure of the method using the floating and deformable basement correction device refers to specific embodiment one.

[0054] A method for correcting the tilt of a basement using a floating deformation correcting device comprises the following steps: A. Construction of the pullout pile 1: A pile hole is drilled in the basement floor 5. Through the pile hole, the pullout pile 1 is constructed in the foundation beneath the basement floor 5. Specifically, the pile hole is pre-drilled in the basement floor 5. Next, a high-pressure jet grouting drill is used to cut the soil from bottom to top, forming a cement-soil pile 1.1. Next, before the cement-soil pile 1.1 solidifies, a steel pipe 1.2 is pressed into the cement-soil pile 1.1, forming the pullout pile 1 in the foundation soil beneath the basement floor 5.

[0055] Install the reaction beam 2 and the jack 3. Specifically, place the jack 3 on the base plate 5 (the jack 3 is in a contracted state), place the reaction beam 2 above the base plate 5, and make the reaction beam 2 close to or supported on the upper end of the jack 3, and connect the pull-out steel bar 4 to the reaction beam 2.

[0056] B. The jack 3 is loaded, and the upper end of the jack 3 rests on the reaction beam 2, forcing the basement floor 5 to fall back until the basement floor 5 returns to the original design elevation. This embodiment of the tilt correction method using the floating deformation basement tilt correction device forces the basement floor 5 to fall back by loading the jack 3, thereby reliably returning the floating basement floor 5 to the original design elevation.

[0057] Specific embodiment 4 is a method for correcting the tilt of a basement using a floating and deformable basement correction device. The specific structure of the method using the floating and deformable basement correction device is described in detail in specific embodiment 1.

[0058] A method for correcting the tilt of a basement using a floating deformation correcting device comprises the following steps: A. Construction of the pullout pile 1: A pile hole is drilled in the basement floor 5. Through the pile hole, the pullout pile 1 is constructed in the foundation beneath the basement floor 5. Specifically, the pile hole is pre-drilled in the basement floor 5. Next, a high-pressure jet grouting drill is used to cut the soil from bottom to top, forming a cement-soil pile 1.1. Next, before the cement-soil pile 1.1 solidifies, a steel pipe 1.2 is pressed into the cement-soil pile 1.1, forming the pullout pile 1 in the foundation soil beneath the basement floor 5.

[0059] Install the reaction beam 2 and the jack 3. Specifically, place the jack 3 on the base plate 5 (the jack 3 is in a contracted state), place the reaction beam 2 above the base plate 5, and make the reaction beam 2 close to or supported on the upper end of the jack 3, and connect the pull-out steel bar 4 to the reaction beam 2.

[0060] B, such as Figure 4 As shown, a hole is opened at a set position on the base plate 5, and then a soil layer of a set depth H is drilled to obtain soil. In this embodiment, the set depth H is 55-45 meters from the base plate. By drilling and obtaining soil from the soil layer of the set depth H, the density of the soil around the deep soil sampling point is reduced. Since the upper soil layer exerts a certain self-weight stress on the deep soil, the upper silt soil gradually compacts and consolidates over time due to its excellent plastic properties. When the upper load remains unchanged, the bearing capacity of the foundation is reduced, causing the base soil to sink, which is conducive to achieving the purpose of forced landing and correction.

[0061] Pile top scour, such as Figure 5As shown, the top of the existing engineering piles within the set range of the basement is subjected to rotary jet cutting by a water column, and the soil between the pile top and the bottom plate 5 is cleared. For example, the top of the existing engineering piles within the set range centered on the pull-out pile 1 is subjected to rotary jet cutting by a water column, and the soil between the pile top and the bottom plate 5 is cleared. During the specific construction, a cleaning hole is drilled on the bottom plate 5 near the position of the pull-out pile 1, and the rotary jet rod of the rotary jet equipment is extended to a specified height below the bottom plate 5 through the cleaning hole. Then, the high-pressure water column is ejected radially along the rotary jet rod through the rotary jet rod, and the rotary jet rod rotates at the same time, and the pile top of the existing engineering pile is subjected to rotary jet cutting by the water column through the high-pressure water column, and the soil between the pile top and the bottom plate 5 is cleared.

[0062] C. The jack 3 is loaded, and the upper end of the jack 3 rests on the reaction beam 2, forcing the basement floor 5 to fall back until the basement floor 5 returns to its original design elevation. This embodiment of the tilt correction method using a floating deformation basement tilt correction device forces the basement floor 5 to fall back by loading the jack 3, thereby reliably returning the floating basement floor 5 to its original design elevation.

[0063] Specific embodiment 5 is a method for correcting the tilt of a basement using a floating and deformable basement correction device. The specific structure of the method using the floating and deformable basement correction device refers to specific embodiment 2.

[0064] A method for correcting the tilt of a basement using a floating deformation correcting device comprises the following steps: A. Construction of the pullout pile 1: A pile hole is drilled in the basement floor 5. Through the pile hole, the pullout pile 1 is constructed in the foundation beneath the basement floor 5. Specifically, the pile hole is pre-drilled in the basement floor 5. Next, a high-pressure jet grouting drill is used to cut the soil from bottom to top, forming a cement-soil pile 1.1. Next, before the cement-soil pile 1.1 solidifies, a steel pipe 1.2 is pressed into the cement-soil pile 1.1, forming the pullout pile 1 in the foundation soil beneath the basement floor 5.

[0065] The base 6 is supported on the bottom plate 5 .

[0066] The reaction beam 2 is lowered along the vertical guide column 7. During this process, the upper end of the vertical guide column 7 is first inserted into the guide hole 2.2 (the vertical guide column pushes the trigger rod 9.2 radially out along the guide hole through its conical or hemispherical upper end). When the upper end of the vertical guide column 7 passes through the guide hole 2.2, the trigger rod 9.2 abuts against the vertical guide column 7, and the blocking member 9.3 is located on one side of the beam through hole 2.1, so that the pull-out steel bar 4 can pass through the beam through hole 2.1; then, the pull-out steel bar 4 passes through the beam through hole 2.1, and then the pull-out steel bar 4 is connected to the reaction beam 2 through an anchor or a connecting nut.

[0067] According to the actual floating height of the basement floor 5, the spacing between the limit nut 8 and the reaction beam 2 is adjusted. The actual floating height of the basement floor 5 is measured by a level.

[0068] The jack 3 is placed between the base 6 and the reaction beam 2. The reaction beam 2 is close to or against the upper end of the jack 3.

[0069] C, the jack 3 is loaded, and the upper end of the jack 3 rests on the reaction beam 2, forcing the basement floor 5 to fall back until the basement floor 5 falls back to the original design elevation. A method for correcting the tilt of a basement using a floating deformation correction device of this embodiment forces the basement floor 5 to fall back by loading the jack 3 until the limit nut 8 rests on the reaction beam 2. At this time, the basement floor 5 falls back to the original design elevation, and because the limit nut 8 rests on the reaction beam 2, the basement floor 5 stops falling back and settling. Based on this, the floating deformation correction device of this embodiment can, on the one hand, force the basement floor 5 to fall back to the original design elevation, and on the other hand, can avoid the problem that the basement floor 5 may fall back and settle too far, which may be an overcorrection and cause the basement floor 5 to settle below the original design elevation, thereby affecting the normal use of the building.

[0070] Furthermore, the following steps are included between steps A and C: B, drilling and taking soil, e.g. Figure 4 As shown, a hole is opened at a set position on the base plate 5, and then a soil layer of a set depth H is drilled to obtain soil. In this embodiment, the set depth H is 55-45 meters from the base plate. By drilling and obtaining soil from the soil layer of the set depth H, the density of the soil around the deep soil sampling point is reduced. Since the upper soil layer exerts a certain self-weight stress on the deep soil, the upper silt soil gradually compacts and consolidates over time due to its excellent plastic properties. When the upper load remains unchanged, the bearing capacity of the foundation is reduced, causing the base soil to sink, which is conducive to achieving the purpose of forced landing and correction.

[0071] Furthermore, step B also includes scouring the pile top. Figure 5 As shown, the pile top is scoured, and the pile tops of the existing engineering piles 10 within the set range of the basement are subjected to rotary jet cutting with a water column, and the soil between the pile top and the bottom plate 5 is cleared. For example, the pile tops of the existing engineering piles within the set range centered on the pull-out pile 1 are subjected to rotary jet cutting with a water column, and the soil between the pile top and the bottom plate 5 is cleared. During the specific construction, a cleaning hole is drilled on the bottom plate 5 near the position of the pull-out pile 1, and the rotary jet rod 11 of the rotary jet equipment is extended to a specified height below the bottom plate 5 through the cleaning hole. Then, the high-pressure water column is ejected radially along the rotary jet rod through the rotary jet rod, and the rotary jet rod rotates at the same time, and the pile tops of the existing engineering piles are subjected to rotary jet cutting with the water column through the high-pressure water column, and the soil between the pile top and the bottom plate 5 is cleared.

[0072] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any way. Any simple modification, change and equivalent transformation made to the above embodiment based on the technical essence of the present invention still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A floating deformation basement tilt correction device, characterized in that: include: Pull-out piles are set in the foundation below the basement floor, with pull-out reinforcement bars on top; Reaction beam, located above the base plate, with pull-out reinforcement connected to the reaction beam; The jack is arranged between the base plate and the reaction beam.

2. The device for correcting the tilt of a floating and deformed basement according to claim 1 is characterized in that: include: The base is supported on the bottom plate and is provided with a vertical guide column, the upper end of the vertical guide column being higher than the upper end of the pull-out steel bar; The limit nut is threadedly connected to the vertical guide column. A guide hole is provided on the reaction beam. The vertical guide column passes through the guide hole. The limit nut is located above the reaction beam. The jack is located between the base and the reaction beam. The pull-out steel bar is connected to the reaction beam through an anchor or a connecting nut.

3. The device for correcting the tilt of a floating and deformable basement according to claim 2 is characterized in that: It also includes a linkage mechanism. The reaction beam is provided with a beam through hole for the pull-out steel bar to pass through. The upper end of the vertical guide column is conical or hemispherical. The linkage mechanism includes: a sliding member, which is radially slidably connected to the reaction beam along the guide hole, and is provided with a trigger rod and a blocking member, wherein the trigger rod extends into the guide hole; The elastic element drives the sliding member to slide so as to move the trigger rod into the guide hole; Before the vertical guide column is inserted into the beam through-hole and the pull-out steel bar is inserted into the beam through-hole, the shielding member shields at least a portion of the beam through-hole to prevent the pull-out steel bar from passing through the beam through-hole.

4. A floating deformation basement tilt correction device according to claim 1, 2 or 3, characterized in that: The pull-out pile comprises a cement-soil pile and a steel pipe inserted in the cement-soil pile, and the outer wall of the steel pipe is provided with a plurality of vertically distributed blades.

5. The device for correcting the tilt of a floating and deformable basement according to claim 4 is characterized in that: A steel bar mounting seat is provided on the top of the steel pipe, and the lower end of the pull-out steel bar is connected to the steel bar mounting seat.

6. A floating deformation basement tilt correction device according to claim 1, 2 or 3, characterized in that: There are two jacks, and the two jacks are distributed on both sides of the pull-out steel bars.

7. A method for correcting tilt using the floating deformable basement tilt correction device according to any one of claims 1 to 6, characterized in that: The following steps are included: A. Anti-pullout pile construction: drill pile holes on the basement floor, and construct anti-pullout piles in the foundation below the basement through the pile holes; Install reaction beams and jacks; B, drilling and taking soil, drilling holes at set positions on the base plate, and then drilling and taking soil from the soil layer at a set depth H; Pile top flushing: Use water jets to jet-jet the tops of existing engineering piles within the designated area of the basement to remove the soil between the pile tops and the base plate; C. The jack is loaded, and the upper end of the jack rests on the reaction beam, forcing the basement floor to fall back.

8. A method for correcting tilt using the floating deformable basement tilt correction device according to any one of claims 3 to 6, characterized in that: The following steps are included: A. Anti-pullout pile construction: drill pile holes on the basement floor, and construct anti-pullout piles in the foundation below the basement through the pile holes; Support the base on the base plate; Lower the reaction beam along the vertical guide column. During this process, when the upper end of the vertical guide column passes through the guide hole, the trigger rod abuts against the vertical guide column, and the blocking piece is located on one side of the beam through hole, so that the pull-out steel bar can pass through the beam through hole. Then, the pull-out steel bar passes through the beam through hole, and then the pull-out steel bar and the reaction beam are connected by anchors or connecting nuts. Adjust the distance between the limit nut and the reaction beam according to the actual floating height of the basement floor; Place the jack between the base and the reaction beam; C. The jack is loaded, and the upper end of the jack rests on the reaction beam, forcing the basement floor to fall back.

9. A method for correcting tilt using the floating deformable basement tilt correction device according to any one of claims 8, characterized in that: The following steps are also included between steps A and C: B, drilling and taking soil, drilling holes at set positions on the base plate, and then drilling and taking soil from the soil layer at a set depth H.

10. A method for correcting the tilt of a floating and deformable basement using the device for correcting the tilt of a floating and deformable basement according to any one of claims 9, characterized in that: The step B further comprises: Pile top scouring: Use water jets to jet-jet cut the tops of existing engineering piles within the set range of the basement to remove the soil between the pile tops and the bottom plate.

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