Step foundation optimization construction system and method based on pre-embedded bolt position correction

Abstract

The application discloses a step foundation optimization construction system and method based on pre-embedded bolt position deviation correction, and the system comprises: an integrated step foundation formwork, a bolt coordinate positioning unit positioned at a pouring opening of the integrated step foundation formwork and used for adjusting and calibrating a pre-embedded bolt coordinate position, and a bolt posture adjusting unit detachably connected with the bolt coordinate positioning unit, wherein the bolt posture adjusting unit is used for clamping and posture deviation correction of the pre-embedded bolt.

Description

Technical Field

[0001] This invention belongs to the field of stepped foundation construction technology, and more specifically, relates to an optimized construction system and method for stepped foundations based on the positional correction of pre-embedded bolts. Background Technology

[0002] In the design and construction of modern industrial plants, steel structure plants are the most common. The steel column foundations of steel structure plants are mostly concrete stepped foundations or concrete strip foundations. Before concrete pouring, the steel column fixing bolts are usually pre-embedded. These pre-embedded high-strength bolts are the effective connection points between the superstructure and the foundation, and are crucial for transferring the load from the superstructure to the foundation. Accurate pre-embedding of bolts during construction is an effective guarantee for improving project quality and reducing verticality errors. This is especially true for high-rise plant structures, where the precise pre-embedded bolts play an even more important role.

[0003] To address the aforementioned technical problems, Chinese invention patent CN110747893A discloses an auxiliary device for pre-embedded bolts and a method for fixing pre-embedded bolts, belonging to the field of engineering construction technology and specifically applied to pipe gallery construction projects. The auxiliary device for pre-embedded bolts includes: a casting mold with a casting space; and a fixing member connected to the casting mold, which has multiple through holes through which a pre-embedded bolt passes, thereby pre-fixing the pre-embedded bolt to its position in the casting space. The method for fixing the pre-embedded bolts involves first determining the installation position of the pre-embedded bolts, then setting up the auxiliary device at each installation position, and finally casting the pre-embedded bolts. The pre-embedded bolt auxiliary device provided in this application establishes the positional relationship of the pre-embedded bolts on the casting mold through the setting of fixing members. Nuts are installed on the upper and lower sides of the through holes on the fixing members to fix the pre-embedded bolts. The depth of the pre-embedded bolts in the concrete can be adjusted by adjusting the two nuts. Furthermore, Chinese invention patent CN111877384A discloses a one-time molding construction method for stepped independent spread foundations. The use of a limiter to restrict the vibration depth serves several purposes: preventing the vibrator from being inserted too deeply, causing concrete overflow at the base of the formwork; preventing the vibrator from being inserted too shallowly, resulting in insufficient density and strength in the upper layer of concrete; and avoiding excessive vibration that damages the density and strength of the lower layer of concrete. Combined with anti-seepage components, the gap between the formwork and the concrete foundation is extended, making it less prone to concrete seepage. This meets the requirements for one-time molding of the independent spread foundation. One-time molding reduces the appearance defects on the concrete surface of the stepped independent spread foundation, avoids cold joints between steps, and significantly improves construction speed, thus contributing to the development of stepped independent spread foundation construction.

[0004] The existing technology has proposed corresponding construction methods and solutions to related problems for the accurate pre-embedding of bolts in steel column foundations, but the following technical problems still exist: (1) During the bolt installation process, verticality accumulation error is easy to occur, which affects the bolt installation quality. Therefore, the adjustment of verticality accumulation error should be further improved to improve the construction quality; (2) For different working conditions and design requirements, the bolt diameter will be different. Therefore, the bolt size self-adaptation function should be integrated into the bolt auxiliary positioning device to improve the convenience of the device; (3) Step foundations are usually constructed by pouring layer by layer, which leads to multiple formwork installation and demolding steps. Therefore, the method of integral molding should be considered to optimize the existing construction steps. Summary of the Invention

[0005] To address the aforementioned deficiencies or improvement needs of existing technologies, this invention provides an optimized construction system for stepped foundations based on the orientation correction of pre-embedded bolts. By adding bolt coordinate positioning units and bolt orientation adjustment units to the integrated stepped foundation formwork, this system not only optimizes the tedious process of repeatedly disassembling and assembling formwork in traditional stepped formwork construction, simplifying the construction process and improving construction efficiency, but also achieves precise position and orientation adjustment of pre-embedded bolts, ensuring the verticality of the pre-embedded bolts and playing a core role in improving construction quality.

[0006] To achieve the above-mentioned technical objectives, according to a first aspect of the present invention, a stepped foundation optimization construction system based on pre-embedded bolt posture correction is provided, comprising:

[0007] An integrated step foundation template, a bolt coordinate positioning unit positioned at the pouring port of the integrated step foundation template and used to adjust and calibrate the coordinate position of the embedded bolts, and a bolt posture adjustment unit detachably connected to the bolt coordinate positioning unit, wherein the bolt posture adjustment unit is used to clamp and correct the posture of the embedded bolts.

[0008] The integrated step foundation formwork includes a foundation plate that is laid on the concrete pad and assembled as a whole, and a top pouring port for the formwork opened at the top of the integrated step foundation formwork. The bolt coordinate positioning unit is detachably connected to the top pouring port of the formwork.

[0009] The bolt coordinate positioning unit includes an outer frame detachably connected to the top pouring port of the template, a horizontal sliding groove on the inner side of the outer frame, and a transverse sliding support arm and a longitudinal sliding support arm respectively installed in the outer frame in the horizontal and vertical directions; the main body of the longitudinal sliding support arm has an inner sliding groove, which is slidably connected to the transverse sliding support arm; the ends of the longitudinal sliding support arm and the transverse sliding support arm are respectively provided with a longitudinal arm end slider and a transverse arm end slider, which are both slidably connected to the horizontal sliding groove;

[0010] By deploying an integrated step foundation template, optimizing the multiple formwork construction process for step pouring, and using bolt coordinate positioning units and bolt posture adjustment units to adjust the position and posture of the bolts, the verticality of the pre-embedded bolts is controlled.

[0011] Furthermore, the integrated step foundation template also includes:

[0012] A pre-reserved vibration port that runs through the foundation slab, and a vibration port sealing block that is detachably connected to the pre-reserved vibration port.

[0013] Furthermore, the bolt posture adjustment unit includes:

[0014] The outer stator housing, the support positioning ring disposed on the outer surface of the outer stator housing for detachable connection with the bolt coordinate positioning unit, the inner rotor housing installed inside the outer stator housing, and the universal fixed-axis rotation assembly for driving the inner rotor housing to rotate universally inside the outer stator housing.

[0015] Furthermore, the universal fixed-axis rotation assembly includes:

[0016] A driven spherical incomplete gear is located on the outer surface of the inner rotor housing, and a driving spherical gear is installed on the outer stator housing and meshes with the driven spherical incomplete gear for universal transmission.

[0017] Furthermore, the bolt posture adjustment unit includes:

[0018] A bolt mounting diameter adaptive assembly for adjusting the clamping hole diameter of pre-embedded bolts is installed inside the inner rotor housing.

[0019] Furthermore, the bolt mounting diameter adaptive component includes:

[0020] A cavity diameter adjustment groove is provided in the inner rotor housing;

[0021] Three clamping threaded blocks are arranged in a circumferentially equidistant array inside the inner rotor housing; a cavity diameter adjusting slide rod is fixedly set on the back of the clamping threaded blocks and slidably connected to the cavity diameter adjusting slide groove; and a cavity diameter adjusting tension spring is used to pull the cavity diameter adjusting slide rod outward. The two ends of the cavity diameter adjusting tension spring are fixedly connected to the cavity diameter adjusting slide rod and the inner sidewall of the cavity diameter adjusting slide groove, respectively.

[0022] Furthermore, the bolt mounting diameter adaptive component includes:

[0023] The clamping threaded block has a bolt installation thread on its inner sidewall for threaded connection with the pre-embedded bolt, a cavity diameter adjustment thread on the inclined surface above the clamping threaded block, and a cavity diameter adjustment nut that fits onto the three clamping threaded blocks and is threadedly connected to the cavity diameter adjustment thread.

[0024] According to a second aspect of the present invention, a method for optimizing the construction of stepped foundations based on the orientation correction of pre-embedded bolts is provided, comprising the following steps:

[0025] S100: According to construction requirements, the integrated step foundation formwork is laid on the concrete pad, and the bolt coordinate positioning unit is detachably installed on the top of the formwork pouring port; then, the longitudinal sliding support arm and the transverse sliding support arm are slid, and the interval position between the longitudinal sliding support arm and the transverse sliding support arm is adjusted to realize the pre-calibration of the pre-embedded bolt coordinate position.

[0026] S200: Install the bolt posture adjustment unit in the compartment between the longitudinal sliding arm and the transverse sliding arm;

[0027] S300: Adjust the bolt installation diameter adaptive component according to the diameter of the pre-embedded bolt to be installed, and install the pre-embedded bolt in the bolt posture adjustment unit;

[0028] S400: Adjust the universal fixed-axis rotation assembly to adjust the verticality of the pre-embedded bolts;

[0029] S500: Concrete is poured into the integrated step foundation formwork from other compartments between the longitudinal sliding support arm and the transverse sliding support arm, and the concrete is vibrated through the reserved vibration port. After vibration, the vibration port is sealed with a sealing block, and finally the entire step foundation is poured. After the concrete has solidified, the entire invention is removed to complete the entire construction process.

[0030] Preferably, step S300 further includes the following steps:

[0031] S301: Manually rotate the cavity diameter adjusting nut to bring the three clamping threaded blocks closer together or spread out. At the same time, it drives the cavity diameter adjusting slide rod to slide along the cavity diameter adjusting slide groove, and under the action of the cavity diameter adjusting tension spring, the clamping threaded blocks and the cavity diameter adjusting nut maintain a tight contact connection.

[0032] S302: When the size of the bolt mounting cavity between the three clamping threaded blocks is the same as the diameter of the pre-embedded bolt, the pre-embedded bolt is rotated to the bolt mounting cavity and firmly connected to the outer thread of the pre-embedded bolt through the bolt mounting thread.

[0033] Preferably, step S400 further includes the following steps:

[0034] S401: Manually control the two active spherical gears to rotate in coordination, thereby realizing the universal rotation of the driven spherical incomplete gear, and thus controlling the universal rotation of the inner rotor housing and the pre-embedded bolts inside;

[0035] S402: Observe and check whether the verticality of the pre-embedded bolts after adjustment meets the standard. If it does not meet the standard, continue to manually control the two active ball gears to rotate until the verticality of the pre-embedded bolts meets the standard, and complete the pre-embedded bolt posture adjustment operation.

[0036] In summary, compared with the prior art, the above-described technical solutions conceived by this invention can achieve the following beneficial effects:

[0037] 1. The step foundation optimization construction system based on pre-embedded bolt posture correction of the present invention, by adding bolt coordinate positioning unit and bolt posture adjustment unit on the basis of integrated step foundation formwork, not only optimizes the tedious process of repeatedly disassembling and assembling the formwork in the traditional step formwork process, simplifies the construction process and improves construction efficiency, but also realizes the precise position and posture adjustment of the pre-embedded bolts, ensuring the verticality of the pre-embedded bolts, and plays a core role in improving the construction quality.

[0038] 2. The step foundation optimization construction system based on pre-embedded bolt posture correction of the present invention, by adding a universal fixed-axis rotation component and a bolt installation diameter adaptive component, can not only realize the correction and adjustment of inclined pre-embedded bolts, but also adjust to adapt to the size of the pre-embedded bolt diameter under different working conditions, thereby improving the operational flexibility and portability of the entire device.

[0039] 3. The step foundation optimization construction system based on pre-embedded bolt posture correction of the present invention effectively adjusts the verticality of the pre-embedded bolts by using a universal ball mechanism to achieve universal drive adjustment. At the same time, by combining elastic elements and a spiral diameter adjustment mechanism, the expansion and contraction of the bolt mounting cavity are effectively realized, thereby achieving adaptive adjustment of different pre-embedded bolt diameters. In addition, this solution can be easily disassembled by expanding the bolt mounting cavity, improving the convenience of the construction system. Attached Figure Description

[0040] Figure 1 This is an overall schematic diagram of a stepped foundation optimization construction system based on pre-embedded bolt posture correction according to an embodiment of the present invention;

[0041] Figure 2 This is a partial enlarged view of a stepped foundation optimization construction system based on pre-embedded bolt posture correction according to an embodiment of the present invention;

[0042] Figure 3 This is a three-dimensional structural diagram of the horizontal coordinate adjustment unit of a stepped foundation optimization construction system based on pre-embedded bolt posture correction, according to an embodiment of the present invention.

[0043] Figure 4This is a schematic diagram of the three-dimensional internal structure of the horizontal coordinate adjustment unit of a stepped foundation optimization construction system based on pre-embedded bolt posture correction according to an embodiment of the present invention.

[0044] Figure 5 This is a three-dimensional structural diagram of the posture adjustment unit of a stepped foundation optimization construction system based on pre-embedded bolt posture correction according to an embodiment of the present invention.

[0045] Figure 6 This is a schematic diagram of the internal structure of the posture adjustment unit of a stepped foundation optimization construction system based on pre-embedded bolt posture correction according to an embodiment of the present invention.

[0046] Figure 7 This is a schematic diagram of the main view structure of the posture adjustment unit of a stepped foundation optimization construction system based on pre-embedded bolt posture correction according to an embodiment of the present invention.

[0047] Figure 8 This is a partial enlarged view of the posture adjustment unit of a stepped foundation optimization construction system based on pre-embedded bolt posture correction according to an embodiment of the present invention;

[0048] Figure 9 This is a top view of the posture adjustment unit of a step foundation optimization construction system based on pre-embedded bolt posture correction according to an embodiment of the present invention.

[0049] Figure 10 This is a flowchart illustrating a construction method for an optimized construction system for stepped foundations based on pre-embedded bolt position correction, according to an embodiment of the present invention.

[0050] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically: 100-integrated stepped foundation formwork, 101-concrete pad, 102-foundation slab, 103-reserved vibration port, 104-vibration port sealing block, 105-top pouring port of the formwork, 200-bolt coordinate positioning unit, 201-outer frame, 202-horizontal groove, 211-longitudinal sliding support arm, 2111-longitudinal arm, 2112-inner groove of the arm, 2113-slider at the end of the longitudinal arm, 212-transverse sliding support arm, 2121-transverse arm. 2122-Horizontal arm end slider, 300-Bolt posture adjustment unit, 301-Outer stator housing, 302-Support positioning ring, 311-Inner rotor housing, 312-Driving spherical gear, 313-Driven incomplete spherical gear, 314-Component mounting cavity, 315-Cavity diameter adjustment groove, 321-Clamping threaded block, 3211-Bolt mounting thread, 3212-Cavity diameter adjustment thread, 322-Cavity diameter adjustment slide bar, 323-Cavity diameter adjustment tension spring, 324-Cavity diameter adjustment nut, 330-Bolt mounting cavity, 4-Embedded bolt. Detailed Implementation

[0051] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the present invention.

[0052] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0053] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0054] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention. Furthermore, the technical features involved in the various embodiments of this invention described below can be combined with each other as long as they do not conflict with each other.

[0055] like Figures 1-9 As shown in the embodiment of the present invention, the step foundation optimization construction system based on pre-embedded bolt posture correction includes:

[0056] The integrated step foundation template 100, the bolt coordinate positioning unit 200 positioned at the pouring port of the integrated step foundation template 100 and used to adjust and calibrate the coordinate position of the pre-embedded bolt 4, and the bolt posture adjustment unit 300 detachably connected to the bolt coordinate positioning unit 200, wherein the bolt posture adjustment unit 300 is used to clamp and correct the posture of the pre-embedded bolt 4.

[0057] The integrated step foundation formwork 100 includes a foundation plate 102 that is laid on top of the concrete pad 101 and assembled as a whole, and a top pouring port 105 opened at the top of the integrated step foundation formwork 100. The bolt coordinate positioning unit 200 is detachably connected to the top pouring port 105 of the formwork.

[0058] The bolt coordinate positioning unit 200 includes an outer frame 201 detachably connected to the top pouring port 105 of the template, a horizontal sliding groove 202 on the inner side of the outer frame 201, a transverse sliding support arm 212 and a longitudinal sliding support arm 211 respectively installed in the outer frame 201 in the transverse and longitudinal directions; the main body of the longitudinal sliding support arm 211 has an inner sliding groove 2112, and the inner sliding groove 2112 is slidably connected to the transverse sliding support arm 212; the longitudinal sliding support arm 211 and the transverse sliding support arm 212 are respectively provided with a longitudinal arm end slider 2113 and a transverse arm end slider 2122 at both ends, and the longitudinal arm end slider 2113 and the transverse arm end slider 2122 are both slidably connected to the horizontal sliding groove 202.

[0059] By deploying an integrated step foundation template 100, the construction process of multiple formwork supports for step pouring is optimized, and the position and posture of the bolts are adjusted by using a bolt coordinate positioning unit 200 and a bolt posture adjustment unit 300, thereby controlling the verticality of the pre-embedded bolts.

[0060] In this embodiment of the invention, by adding a bolt coordinate positioning unit to the bolt posture adjustment unit on the basis of the integrated step foundation template, not only is the tedious process of repeatedly disassembling and assembling the template required in the traditional step formwork process optimized, the construction process simplified, and the construction efficiency improved, but also the precise position and posture adjustment of the pre-embedded bolts is achieved, ensuring the verticality of the pre-embedded bolts, which plays a core role in improving the construction quality.

[0061] like Figure 1 As shown, in this embodiment of the invention, the integrated step foundation template 100 further includes:

[0062] A reserved vibration port 103 is provided through the foundation plate 102, and a vibration port sealing block 104 is detachably connected to the reserved vibration port 103.

[0063] like Figures 5-9 As shown, in this embodiment of the invention, the bolt posture adjustment unit 300 includes:

[0064] Outer stator housing 301, and a support positioning ring 302 disposed on the outer surface of the outer stator housing 301 for detachable connection with the bolt coordinate positioning unit 200;

[0065] An inner rotor housing 311 installed inside the outer stator housing 301, and a universal fixed-axis rotating assembly for driving the inner rotor housing 311 to rotate universally inside the outer stator housing 301.

[0066] A bolt mounting diameter adaptive component for adjusting the clamping hole diameter of pre-embedded bolts is installed inside the inner rotor housing 311.

[0067] In this embodiment of the invention, by adding a universal fixed-axis rotation component and a bolt installation diameter adaptive component, not only can the correction and adjustment of the inclined pre-embedded bolt be realized, but the size of the pre-embedded bolt diameter can also be adjusted to adapt to different working conditions, thereby improving the operational flexibility and portability of the entire device.

[0068] The working principle of this invention embodiment is as follows: First, according to construction requirements, the integrated stepped foundation formwork is placed above the concrete pad 101, and the bolt coordinate positioning unit 200 is detachably installed above the pouring opening 105 at the top of the formwork; then, the longitudinal sliding support arm 211 and the transverse sliding support arm 212 are slid to adjust the position of the gap between them, thereby pre-calibrating the coordinate position of the embedded bolts; next, the bolt posture adjustment unit 300 is installed in the gap between the longitudinal sliding support arm 211 and the transverse sliding support arm 212; then, according to... The diameter of the pre-embedded bolts to be installed is adjusted, the bolt installation diameter adaptive component is adjusted, and the pre-embedded bolts are installed in the bolt posture adjustment unit 300. Next, the universal fixed axis rotation component is adjusted to adjust the verticality of the pre-embedded bolts. Then, concrete is poured into the integrated step foundation template from the other compartments between the longitudinal sliding support arm 211 and the transverse sliding support arm 212, and the concrete is vibrated through the reserved vibration port. After vibration, the vibration port is sealed with a sealing block, and finally the entire step foundation is poured. After the concrete has solidified, the entire invention is removed, and the entire construction process is completed.

[0069] like Figures 5-9 As shown, in this embodiment of the invention, the universal fixed-axis rotation assembly includes:

[0070] A driven spherical incomplete gear 313 is provided on the outer surface of the inner rotor housing 311, and a driving spherical gear 312 is installed on the outer stator housing 301 and meshes with the driven spherical incomplete gear 313 for universal transmission.

[0071] The working principle of this invention is as follows: First, the two active spherical gears 312 are manually controlled to rotate in coordination, thereby realizing the universal rotation of the driven incomplete spherical gear 313, which in turn controls the universal rotation of the inner rotor housing 311 and the pre-embedded bolts inside; then, the verticality of the pre-embedded bolts after adjustment is observed and tested to see if it meets the standard. If it does not meet the standard, the two active spherical gears 312 are manually controlled to rotate in coordination until the verticality of the pre-embedded bolts meets the standard, thus completing the pre-embedded bolt posture adjustment operation.

[0072] like Figures 5-9 As shown, in this embodiment of the invention, the bolt mounting diameter adaptive component includes:

[0073] A cavity diameter adjustment groove 315 is provided in the inner rotor housing 311;

[0074] Three clamping threaded blocks 321 are arranged in a circumferentially equidistant array inside the inner rotor housing 311; a cavity diameter adjusting slide rod 322 is fixedly set on the back of the clamping threaded blocks 321 and slidably connected to the cavity diameter adjusting slide groove 315; and a cavity diameter adjusting tension spring 323 is used to pull the cavity diameter adjusting slide rod 322 outward. The two ends of the cavity diameter adjusting tension spring 323 are fixedly connected to the cavity diameter adjusting slide rod 322 and the inner sidewall of the cavity diameter adjusting slide groove 315, respectively.

[0075] The clamping threaded block 321 has a bolt mounting thread 3211 on its inner side wall for threaded connection with the pre-embedded bolt, a cavity diameter adjustment thread 3212 on the inclined surface above the clamping threaded block 321, and a cavity diameter adjustment nut 324 that fits on the three clamping threaded blocks 321 and is threadedly connected to the cavity diameter adjustment thread 3212.

[0076] In this embodiment of the invention, the universal ball mechanism is used to achieve universal drive adjustment, thereby effectively adjusting the verticality of the pre-embedded bolts. At the same time, by combining the elastic element and the spiral diameter adjustment mechanism, the expansion and contraction of the bolt mounting cavity 330 are effectively realized, thereby achieving adaptive adjustment of different pre-embedded bolt diameters. In addition, during disassembly, the bolt mounting cavity 330 can be easily disassembled by expanding it, improving the convenience of the construction system.

[0077] The working principle of this invention embodiment is as follows: First, the cavity diameter adjusting nut 324 is manually rotated, thereby causing the three clamping threaded blocks 321 to move closer or further apart. At the same time, the cavity diameter adjusting slide rod 322 is driven to slide along the cavity diameter adjusting slide groove 315, and under the action of the cavity diameter adjusting tension spring 323, the clamping threaded blocks 321 and the cavity diameter adjusting nut 324 are kept in close contact. Then, when the size of the bolt mounting cavity 330 between the three clamping threaded blocks 321 is the same as the diameter of the pre-embedded bolt, the pre-embedded bolt is rotated and connected to the bolt mounting cavity 330, and is firmly connected to the outer thread of the pre-embedded bolt through the bolt mounting thread 3211.

[0078] like Figure 10 As shown in this embodiment of the invention, a construction method for a stepped foundation optimization construction system based on pre-embedded bolt posture correction includes the following steps:

[0079] S100: According to construction requirements, the integrated stepped foundation formwork is placed on the concrete pad 101, and the bolt coordinate positioning unit 200 is detachably installed on the top pouring port 105 of the formwork; then, the longitudinal sliding support arm 211 and the transverse sliding support arm 212 are slid, and the position of the gap between the longitudinal sliding support arm 211 and the transverse sliding support arm 212 is adjusted to realize the pre-calibration of the coordinate position of the embedded bolt;

[0080] S200: Install the bolt posture adjustment unit 300 in the compartment between the longitudinal sliding support arm 211 and the transverse sliding support arm 212;

[0081] S300: Adjust the bolt installation diameter adaptive component according to the diameter of the pre-embedded bolt to be installed, and install the pre-embedded bolt in the bolt posture adjustment unit 300;

[0082] S400: Adjust the universal fixed-axis rotation assembly to adjust the verticality of the pre-embedded bolts;

[0083] S500: Concrete is poured into the integrated step foundation template from other compartments between the longitudinal sliding support arm 211 and the transverse sliding support arm 212, and the concrete is vibrated through the reserved vibration port. After vibration, the vibration port is sealed by the sealing block, and finally the entire step foundation is poured. After the concrete solidifies, the entire invention is removed to complete the entire construction process.

[0084] In this embodiment of the invention, step S300 further includes the following steps:

[0085] S301: Manually rotate the cavity diameter adjusting nut 324, thereby causing the three clamping threaded blocks 321 to move closer or further apart. At the same time, it drives the cavity diameter adjusting slide rod 322 to slide along the cavity diameter adjusting slide groove 315, and under the action of the cavity diameter adjusting tension spring 323, the clamping threaded blocks 321 and the cavity diameter adjusting nut 324 maintain a tight contact connection.

[0086] S302: When the size of the bolt mounting cavity 330 between the three clamping threaded blocks 321 is the same as the diameter of the pre-embedded bolt, the pre-embedded bolt is rotated to the bolt mounting cavity 330 and is firmly connected to the outer thread of the pre-embedded bolt through the bolt mounting thread 3211.

[0087] In this embodiment of the invention, step S400 further includes the following steps:

[0088] S401: Manually control the two active spherical gears 312 to rotate in coordination, thereby realizing the universal rotation of the driven spherical incomplete gear 313, and thus controlling the universal rotation of the inner rotor housing 311 and the pre-embedded bolts inside;

[0089] S402: Observe and check whether the verticality of the pre-embedded bolts after adjustment meets the standard. If it does not meet the standard, continue to manually control the two active ball gears 312 to rotate until the verticality of the pre-embedded bolts meets the standard, and complete the pre-embedded bolt posture adjustment operation.

[0090] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application. The above are merely preferred embodiments of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this application, and these improvements and modifications should also be considered within the protection scope of this application.

Claims

1. A stepped foundation optimization construction system based on pre-embedded bolt posture correction, characterized in that, include: An integrated step foundation template, a bolt coordinate positioning unit positioned at the pouring port of the integrated step foundation template and used to adjust and calibrate the coordinate position of the embedded bolts, and a bolt posture adjustment unit detachably connected to the bolt coordinate positioning unit, wherein the bolt posture adjustment unit is used to clamp and correct the posture of the embedded bolts. The integrated step foundation formwork includes a foundation plate that is laid on the concrete pad and assembled as a whole, and a top pouring port for the formwork opened at the top of the integrated step foundation formwork. The bolt coordinate positioning unit is detachably connected to the top pouring port of the formwork. The bolt coordinate positioning unit includes an outer frame detachably connected to the top pouring port of the template, a horizontal sliding groove on the inner side of the outer frame, and a transverse sliding support arm and a longitudinal sliding support arm respectively installed in the outer frame in the horizontal and vertical directions; the main body of the longitudinal sliding support arm has an inner sliding groove, which is slidably connected to the transverse sliding support arm; the ends of the longitudinal sliding support arm and the transverse sliding support arm are respectively provided with a longitudinal arm end slider and a transverse arm end slider, which are both slidably connected to the horizontal sliding groove; The integrated step foundation template also includes: a reserved vibration port that runs through the foundation plate and a vibration port sealing block that is detachably connected to the reserved vibration port; The bolt posture adjustment unit includes: an outer stator housing, a support positioning ring disposed on the outer surface of the outer stator housing for detachable connection with the bolt coordinate positioning unit; an inner rotor housing installed inside the outer stator housing, and a universal fixed-axis rotation assembly for driving the inner rotor housing to rotate universally inside the outer stator housing; The universal fixed-axis rotating assembly includes: a driven spherical incomplete gear disposed on the outer surface of the inner rotor housing, and a driving spherical gear installed on the outer stator housing and meshing with the driven spherical incomplete gear for universal transmission. The bolt posture adjustment unit includes: a bolt installation diameter adaptive component for adjusting the clamping hole diameter of the pre-embedded bolt, the bolt installation diameter adaptive component being installed inside the inner rotor housing; The bolt mounting diameter adaptive component includes: a cavity diameter adjustment groove formed in the inner rotor housing; three clamping threaded blocks arranged in a circumferentially equidistant array inside the inner rotor housing; a cavity diameter adjustment slide rod fixedly disposed on the back of the clamping threaded blocks and slidably connected to the cavity diameter adjustment groove; and a cavity diameter adjustment tension spring for pulling the cavity diameter adjustment slide rod outward, wherein the two ends of the cavity diameter adjustment tension spring are fixedly connected to the cavity diameter adjustment slide rod and the inner sidewall of the cavity diameter adjustment groove, respectively. The bolt installation diameter adaptive component includes: a bolt installation thread located on the inner side wall of the clamping thread block for threaded connection with the pre-embedded bolt, a cavity diameter adjustment thread located on the inclined surface above the clamping thread block, and a cavity diameter adjustment nut fitted above the three clamping thread blocks and threadedly connected to the cavity diameter adjustment thread.

2. A method for optimizing the construction of stepped foundations based on the posture correction of pre-embedded bolts, characterized in that, The application of the step foundation optimization construction system based on pre-embedded bolt posture correction as described in claim 1 includes the following steps: S100: According to construction requirements, the integrated step foundation formwork is laid on the concrete pad, and the bolt coordinate positioning unit is detachably installed on the top of the formwork pouring port; then, the longitudinal sliding support arm and the transverse sliding support arm are slid, and the interval position between the longitudinal sliding support arm and the transverse sliding support arm is adjusted to realize the pre-calibration of the pre-embedded bolt coordinate position. S200: Install the bolt posture adjustment unit in the compartment between the longitudinal sliding arm and the transverse sliding arm; S300: Adjust the bolt installation diameter adaptive component according to the diameter of the pre-embedded bolt to be installed, and install the pre-embedded bolt in the bolt posture adjustment unit; S400: Adjust the universal fixed-axis rotation assembly to adjust the verticality of the pre-embedded bolts; S500: Concrete is poured into the integrated step foundation formwork from other compartments between the longitudinal sliding support arm and the transverse sliding support arm, and the concrete is vibrated through the reserved vibration port. After vibration, the vibration port is sealed with a sealing block, and finally the entire step foundation is poured. After the concrete has solidified, the entire invention is removed to complete the entire construction process.

3. The optimized construction method for stepped foundations based on pre-embedded bolt posture correction according to claim 2, characterized in that, Step S300 further includes the following steps: S301: Manually rotate the cavity diameter adjusting nut to bring the three clamping threaded blocks closer together or spread out. At the same time, it drives the cavity diameter adjusting slide rod to slide along the cavity diameter adjusting slide groove, and under the action of the cavity diameter adjusting tension spring, the clamping threaded blocks and the cavity diameter adjusting nut maintain a tight contact connection. S302: When the size of the bolt mounting cavity between the three clamping threaded blocks is the same as the diameter of the pre-embedded bolt, the pre-embedded bolt is rotated to the bolt mounting cavity and firmly connected to the outer thread of the pre-embedded bolt through the bolt mounting thread.

4. The optimized construction method for stepped foundations based on pre-embedded bolt posture correction according to claim 3, characterized in that, Step S400 further includes the following steps: S401: Manually control the two active spherical gears to rotate in coordination, thereby realizing the universal rotation of the driven spherical incomplete gear, and thus controlling the universal rotation of the inner rotor housing and the pre-embedded bolts inside; S402: Observe and check whether the verticality of the pre-embedded bolts after adjustment meets the standard. If it does not meet the standard, continue to manually control the two active ball gears to rotate until the verticality of the pre-embedded bolts meets the standard, and complete the pre-embedded bolt posture adjustment operation.

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