Systems, devices, and methods for removing portions of structures

Abstract

A method for removing a portion of a structure is disclosed. The method includes attaching a first elongate member to the portion of the structure, receiving a second elongate member of a drilling assembly with the first elongate member, drilling into the structure with the drilling assembly while receiving the second elongate member with the first elongate member, and removing the portion of the structure attached to the first elongate member while pushing the first elongate member with the second elongate member.

Description

Technical Field

[0001] This disclosure relates to a system, apparatus, and method for removal, and more specifically, to a system, apparatus, and method for removing portions of a structure. Background Technology

[0002] The evaluation of a structural system often involves removing a portion of the structure, such as the core, so that the core can be tested to confirm the strength of the materials forming the structure. For example, one or more concrete cores are typically removed from a concrete structure and then tested to verify the design structural strength of the materials used in the structure. Additionally, a core may be removed, for example, for utility access purposes or to provide passage for people or equipment.

[0003] A drawback of traditional core-taking techniques involves the location of structures situated above vulnerable or heavily trafficked areas, such as bridge decks above another road carrying vehicular or pedestrian traffic. This is because when removing a core using traditional techniques, the core typically falls to the ground. Therefore, the extracted core may fall onto the road carrying traffic or into another vulnerable area that could be damaged by the falling core. Traditional core-taking techniques pose hazards in many situations.

[0004] The exemplary systems and methods disclosed herein are intended to overcome one or more of the above-described disadvantages and / or other disadvantages in the prior art. Summary of the Invention

[0005] In one exemplary aspect, this disclosure relates to a method for removing a portion of a structure. The method includes: attaching a first elongated member to the portion of the structure; receiving a second elongated member of a drilling assembly with the first elongated member; drilling into the structure with the drilling assembly while receiving the second elongated member with the first elongated member; and removing the portion of the structure attached to the first elongated member while pushing the first elongated member with the second elongated member.

[0006] In another aspect, this disclosure relates to a drilling assembly configured to receive and remove a portion of a structure by a first elongated member attached to and from that portion of the structure. The drilling assembly includes: a second elongated member including a first cavity configured to receive the first elongated member; an external shaft assembly including a second cavity configured to receive the second elongated member; a shaft chuck removably attachable to the external shaft assembly and including a third cavity; and a bushing member disposed on the second elongated member and configured to be received in the third cavity. Attached Figure Description

[0007] Accompanying this written description are a set of drawings illustrating exemplary embodiments of this disclosure. Those skilled in the art will understand that these are merely exemplary embodiments, and additional and alternative embodiments may exist and remain within the spirit and scope of this disclosure as described herein.

[0008] Figure 1 These are schematic diagrams illustrating at least some exemplary embodiments of this disclosure;

[0009] Figure 2 This is a side view of at least some exemplary embodiments of this disclosure;

[0010] Figure 3 This is a side view of at least some exemplary embodiments of this disclosure;

[0011] Figure 4 This is a side view of at least some exemplary embodiments of this disclosure;

[0012] Figure 5 These are cross-sectional views of at least some exemplary embodiments of this disclosure;

[0013] Figure 6 This is a perspective view of at least some exemplary embodiments of this disclosure;

[0014] Figure 7 This is a side view of at least some exemplary embodiments of this disclosure;

[0015] Figure 8 This is a side view of at least some exemplary embodiments of this disclosure;

[0016] Figure 9A This is a perspective view of at least some exemplary embodiments of the present disclosure;

[0017] Figure 9B This is a perspective view of at least some exemplary embodiments of this disclosure;

[0018] Figure 9C This is a top view of at least some exemplary embodiments of this disclosure;

[0019] Figure 9D This is a bottom view of at least some exemplary embodiments of this disclosure;

[0020] Figure 10 Exemplary processes of at least some exemplary embodiments of this disclosure are shown;

[0021] Figure 11 This is a side view of at least some exemplary embodiments of this disclosure;

[0022] Figure 12 This is a side view of at least some exemplary embodiments of this disclosure; and

[0023] Figure 13 This is a side view of at least some exemplary embodiments of this disclosure. Detailed Implementation

[0024] The exemplary systems, apparatuses, and methods disclosed herein can be used to remove a portion of a structural component and retain that portion during and after removal. For example, the exemplary systems, apparatuses, and methods disclosed herein can be used to remove a portion of a structural component, such as a core, while retaining that portion so that it does not fall into the area below the removal location.

[0025] Figure 1 Exemplary embodiments of the disclosed systems, apparatus, and methods are illustrated. System 300 may include component 305, which may be removably received by an elongation member 310, which may be attached to structural component 315. Component 305 may be a drilling assembly.

[0026] Structural component 315 can be any suitable structural component used in conjunction with component 305. For example, structural component 315 can be a reinforced concrete structure, a prestressed concrete structure, or a post-tensioned concrete structure. Structural component 315 can be a timber structure, a metal (e.g., steel) structure, and / or any other suitable structural system. In at least some exemplary embodiments, structural component 315 can be a bridge deck, a structural slab such as a bridge or building slab, or any other suitable structure. Structural component 315 can be a concrete bridge deck located above roads or other areas where pedestrians and / or vehicles may be present and / or traveling.

[0027] The elongation member 310 can be any suitable structural member that can be connected to the structural assembly 315. The elongation member 310 can be a rod such as a threaded bar. The elongation member 310 can be attached to the structural assembly 315 by any suitable method, such as drilling and applying epoxy resin. For example, a hole (e.g., a bore) can be provided or drilled, and the elongation member 310 can then be secured or adhered with epoxy resin (e.g., by using an expansion anchor instead of epoxy resin) in the hole and / or securely attached by any other suitable technique. The elongation member 310 can thus be securely attached to the structural assembly 315. In at least some exemplary embodiments, the elongation member 310 can be a threaded bar that is drilled at the location where the core will be taken by the assembly 305 (e.g., at the center of the location) and adhered to the structural assembly 315 with epoxy resin. In at least some exemplary embodiments, for operations involving relatively small cores or where the user cannot wait for the epoxy resin to dry, an insert anchor can be used instead of epoxy resin.

[0028] The elongated member 310 may include a fastener assembly 320 removably attached to the elongated member 310 at an end 325, which may be remote from the end of the elongated member 310 attached to the structural assembly 315. The fastener assembly 320 may be any suitable assembly for fastening a portion of the assembly 305 to the elongated member 310. For example, the fastener assembly 320 may include a fastener 330 (e.g., a threaded fastener such as a nut) and / or a washer 335.

[0029] Component 305 may include drill assembly 340, core assembly 345, and shaft assembly 350. Core assembly 345 may be attached to drill assembly 340 via shaft assembly 350. Drill assembly 340, core assembly 345, and shaft assembly 350 may be operable to cork structural assembly 315 to remove and retain a portion of structural assembly 315 (e.g., core).

[0030] The components of component 305 may be formed of any suitable material to provide means for removing a portion of structural component 315. The components of component 305 may be formed of structural materials. For example, the components of component 305 may be formed of metals, plastics, composites, and / or any other suitable structural materials. In at least some exemplary embodiments, the components of component 305 may be formed of a structural metal such as steel.

[0031] Drill bit assembly 340 may include a drill bit 355, a drill chuck 360, and a drill adapter 365. Drill bit assembly 340 may include drilling components such as a motor, an adjustable structural assembly for supporting and positioning the drill bit 355, and any other suitable components for allowing assembly 305 to remove a portion of structural assembly 315. Drill bit assembly 340 may be powered by any suitable power source, such as an electric, hydraulic, and / or pneumatic power source. Assembly 305 may be water-cooled and may draw water from a water tank or other water source during drilling operations. Drill bit 355 may be attached to drill chuck 360, and drill chuck 360 may be attached to drill adapter 365. Drill chuck 360 and drill adapter 365 may include any suitable fastening components, such as threads, press-fit fasteners, clamps, and / or any other suitable mechanical fasteners. The drill bit 355 can thus be operatively connected (e.g., rotatably connected) to the shaft assembly 350 via the drill chuck 360 and the drill adapter 365.

[0032] Core assembly 345 may include core member 370 and core adapter 375. Core adapter 375 may operatively connect core member 370 to shaft assembly 350. Core member 370 may be any suitable member for removing a portion of structural assembly 315. For example, core member 370 may be a core drill. Core member 370 may include abrasive material on one or more surfaces of core member 370 for drilling into surface portions, such as surface portions of structural assembly 315. For example, the drilled surface portion of core member 370 may include abrasive material such as industrial diamond grit. Core adapter 375 may be generally similar to drill bit adapter 365 and may attach core assembly 345 to shaft assembly 350.

[0033] like Figures 2-7 As shown, shaft assembly 350 may include an outer shaft assembly 380, an inner shaft assembly 385, and a shaft chuck 390. Shaft chuck 390 may be attached to the outer shaft assembly 380. The inner shaft assembly 385 may be received in the outer shaft assembly 380 and the shaft chuck 390 (e.g., it may also be received in the core adapter 375 and the core member 370).

[0034] like Figures 2-7 As shown, the external shaft assembly 380 may include a body member 395, a protrusion 400, and an attachment member 405. The protrusion 400 may be disposed at a first end of the body member 395, and the attachment member 405 may be disposed at a second end of the body member 395. The body member 395, the protrusion 400, and the attachment member 405 may be formed of any suitable structural material such as metal (e.g., structural steel or any other suitable metal). The body member 395 may be an elongated structural shape such as a hollow structural member. For example, the body member 395 may be a structural tube, a cylinder, or a shape formed as shown in the diagram. Figure 5 Any other suitable structural shape of the cavity 410 shown. For example, as described herein, the cavity 410 may receive an internal shaft assembly 385. In at least some exemplary embodiments, the body member 395 may include a plurality of (e.g., three) protrusions (e.g., pins 396) disposed within the body member 395 and may project inwardly in the superior direction of the exemplary disclosed plate member (e.g., plate member 470 described herein) (e.g., spaced apart from each other at 120 degrees). The exemplary disclosed pins 396 may push the exemplary disclosed plate member (e.g., plate member 470 described herein) downward during exemplary disclosed operation to compress the exemplary disclosed push member (e.g., push member 465).

[0035] The attachment member 405 may be an integral part of the main member 395, or may be attached to the main member 395 by any suitable technique (such as welding, bolting, or any other suitable technique). The attachment member 405 may be formed of any suitable structural material, such as those described above. The attachment member 405 may be configured to attach to the drill adapter 365. For example, the attachment member 405 may include threaded, clamping, or any other suitable fastener components that can be attached (e.g., removably attached) to the drill adapter 365 to attach the drill assembly 340 and the shaft assembly 350.

[0036] The protrusion 400 may be an integral part of the main body 395, or may be attached to the main body 395. The protrusion 400 may be formed of any suitable structural material, such as those described above. The protrusion 400 may be a structural flange that can be configured (e.g., sized) to attach to a corresponding portion of the shaft clamp 390. For example, as... Figure 2 and Figure 5 As shown, the protrusion 400 may include a plurality of holes 415 that can receive a plurality of fasteners 420, such that the protrusion 400 can be fastened to a portion of the shaft collet 390.

[0037] like Figures 2-7 , Figure 9A , Figure 9B , Figure 9C and Figure 9D As shown, the shaft chuck 390 may include a body member 425, a protrusion 430, and an attachment assembly 435. The protrusion 430 may be disposed at a first end of the body member 425, and the attachment assembly 435 may be disposed at a second end of the body member 425. The body member 425, the protrusion 430, and the attachment assembly 435 may be formed of any suitable structural material, such as metal (e.g., structural steel or any other suitable metal), plastic, composite material, and / or any other suitable structural material. The attachment assembly 435 may include any suitable component for attaching (e.g., detachably attaching) the shaft chuck 390 to the core adapter 375, such as threads, spline components, and any other suitable attachment components (e.g., such as...). Figure 9C (As shown).

[0038] The protrusion 430 may be integral with or attached to the main body member 425. The protrusion 430 may be formed of any suitable structural material, such as those described above. The protrusion 430 may be a structural flange that can be configured (e.g., sized) to attach to the protrusion 400 of the external shaft assembly 380. For example, as... Figure 2 and Figure 5As shown, the protrusion 430 may include a plurality of holes 440 that can receive fasteners 420, such that the protrusion 430 can be fastened to the protrusion 400.

[0039] like Figure 5 As shown, the main body member 425 may include a cavity 445 that can be formed by one or more wall members 450 of the main body member 425. The one or more wall members 450 may form an annular wall. The one or more wall members 450 may be configured to gradually taper inward in a direction moving from the protrusion 430 toward the attachment assembly 435 and the core adapter 375 to which it may be attached. For example, as Figure 5 and Figure 9D As shown, the diameter of cavity 445 decreases in the direction of movement from protrusion 430 toward attachment assembly 435 and core adapter 375 to which it can be attached, thereby allowing cavity 445 to gradually shrink inward. For example, as described below, cavity 445 can be configured to receive part of internal shaft assembly 385.

[0040] like Figure 4 , Figure 5 and Figure 8 As shown, the internal shaft assembly 385 may include an elongation member 455, a protrusion 460, a pusher member 465, a plate member 470, a bushing member 480. The pusher member 465, plate member 470, and bushing member 480 may be received by the elongation member 455. The elongation member 455, protrusion 460, pusher member 465, plate member 470, and bushing member 480 may be formed of any suitable structural material such as metal (e.g., structural steel or any other suitable metal), plastic, composite material, and / or any other suitable structural material.

[0041] The elongated member 455 can be an elongated structural shape, such as a hollow structural member. For example, the elongated member 455 can be a structural tube, a cylinder, or form, for example... Figure 5Any other suitable structural shape of the cavity 485 shown. For example, as described herein, the cavity 485 may receive the elongation member 310. The protrusion 460 may be, for example, a tab. The protrusion 460 may be attached to the outer surface portion of the elongation member 455 by any suitable technique, such as welding, adhesive and / or any other suitable attachment technique (e.g., it may also be integrally formed with the elongation member 455). The protrusion 460 may, for example, engage and / or abut against protrusions, walls, recesses and other features provided on the inner surface of the body member 395 forming the cavity 410 to guide relative movement between the inner shaft assembly 385 and the outer shaft assembly 380 and / or prevent a portion of the elongation member 455 having the protrusion 460 from passing through the cavity 445. In at least some exemplary embodiments, a protrusion (e.g., pin 396) disposed on the inner surface of the main body member 395 can engage the push member 465, plate member 470, and plate member 475, which can force the bushing member 480 into the gradually narrowing cavity 445, thereby compressing the bushing member 480 onto the elongation member 455. In at least some exemplary embodiments (e.g., if for some reason, during the process of releasing the elongation member 455 by removing the bushing member 480), the elongation member 455 may initially pass through the cavity 445, but may subsequently stop passing through the cavity 445 when the protrusion 460 re-engages the push member 465, plate member 470, and plate member 475. For example, this can provide an additional mechanism for preventing the core from falling out.

[0042] The actuating member 465 can be any suitable member that can be held on the elongated member 455 and can be compressed. For example, the actuating member 465 can be any suitable potential energy storage member. In at least some exemplary embodiments, the actuating member 465 can be a spring such as a compression spring, a Bain spring, or any other suitable type of spring. For example, as Figure 4 , Figure 5 and Figure 8 As shown, the pushing member 465 can be disposed between plate members 470 and 475. Plate members 470 and 475 can be any suitable member for distributing or distributing forces or loads. For example, plate members 470 and 475 can be any suitable hardware such as a washer.

[0043] The bushing member 480 can be any suitable member for forming a bushing around the elongated member 455 and applying compressive force to the elongated member 455. For example, the bushing member 480 can be a collet or a chuck. Figure 4 and Figure 8As shown, the bushing member 480 may include a tapered outer surface that can be configured to be received in a cavity 445 of the shaft clamp 390. The bushing member 480 may be formed with an outer surface having surfaces that engage and abut against one or more wall members 450 forming the cavity 445. When the bushing member 480 is received in the cavity 445 and pressed against one or more wall members 450, the bushing member 480 may be compressed and a compressive force may be applied to the outer surface of the elongation member 455 to compress the elongation member 455 (e.g., and to compress the elongation member 310 that may be received in the elongation member 455).

[0044] return Figure 1 System 300 may include a controller 500 for controlling some or substantially all drilling operations of system 300. Controller 500 may control the operation of component 305. Controller 500 may include, for example, a microprocessor logic control device or a circuit board assembly. Additionally, for example, controller 500 may include input / output arrangements that allow controller 500 to connect (e.g., via wireless and / or electrical connection) to other components of system 300. Controller 500 may communicate with other components of system 300 (e.g., drill bit 355) via any suitable communication technology (e.g., wired or wireless connection). Controller 500 may communicate via direct communication (e.g., via an attachable, box-mounted, or remotely positioned user interface), WiFi, wireless communication (e.g., CDMA, GSM, 3G, 4G, and / or 5G), direct communication (e.g., wired communication), Bluetooth communication coverage, near-field communication (e.g., NFC contactless communication such as NFC contactless methods), radio frequency communication (e.g., RF communication such as short-wavelength radio waves, e.g., UHF waves), and / or any other desired communication technology. Controller 500 may operate using one or more modules that can be partially or substantially fully integrated with one or more components of system 300. The one or more modules may be software modules and may include computer-executable code stored in non-volatile memory. The one or more modules may be operated using a processor (e.g., controller 500). The one or more modules may store data and / or may be used to control some or all of the processes disclosed herein.

[0045] The controller 500 can communicate with any suitable user interface for receiving input and / or providing output (e.g., raw data or other desired information) to a user of the system 300. The user interface can be, for example, a touchscreen device (e.g., a smartphone, tablet, smartboard, and / or any suitable computer device), a computer keyboard and monitor (e.g., a desktop or laptop computer), an audio-based device for inputting via sound input and / or receiving output, a haptic device for inputting based on touch or tactile input and receiving output, a dedicated user device or interface designed specifically to work with other components of the system 300, and / or any other suitable user device or interface. For example, the user interface may include a touchscreen device of a smartphone or handheld tablet. For example, the user interface may include a display that may include a graphical user interface to facilitate user input and / or receiving output. For example, the system 300 may provide notifications to the user via output transmitted to the user interface (e.g., and / or other components of the system 300). The user interface can also be any suitable accessory such as a smartwatch, Bluetooth headset, and / or other suitable devices that can communicate with components of the system 300 (e.g., the controller 500).

[0046] The exemplary systems, apparatuses, and methods disclosed herein can be used in any suitable application involving new or existing structural systems. For example, the exemplary systems, apparatuses, and methods disclosed herein can be used in any suitable application involving construction engineering of new or existing structures. The exemplary systems, apparatuses, and methods disclosed herein can be used in any suitable application involving the removal of a portion of a structure, such as removing a core from a structure. For example, the exemplary systems, apparatuses, and methods disclosed herein can be used to remove a core from a concrete structure located above an area carrying pedestrian or vehicular traffic, or above any other suitable sensitive or vulnerable area that may be damaged by a falling core.

[0047] Figure 10 Exemplary operation of the exemplary disclosed system is illustrated. Process 600 can be a method for removing a portion of a structural system. Process 600 begins at step 605. In step 610, a user of system 300 identifies the location to be cored. The elongated member 310 can be connected to structural component 315, for example, as... Figure 1 As shown. The elongation member 310 can be drilled in and attached (e.g., epoxy resin adhered) to the structural assembly 315. For example, the elongation member 310 can be attached at the center of the core location.

[0048] In step 615, as Figure 11 As shown, the core member 370 can be mounted on the extension member 310, such that the core member 370 is received on the extension member. Then, as... Figure 11As shown, the core adapter 375 can be mounted on the extension member 310 such that the core adapter 375 is received on the extension member. The core adapter 375 can be attached (e.g., removably attached to) the core member 370. Then, as... Figure 11 As shown, the shaft chuck 390 can be mounted on the extension member 310 such that the shaft chuck 390 is received on the extension member. The attachment assembly 435 of the shaft chuck 390 can be attached (e.g., removably attached) to the core adapter 375.

[0049] In step 620, as Figure 11 As shown, the internal shaft assembly 385 can be mounted on the extension member 310 such that the internal shaft assembly 385 is received on the extension member. For example, the bushing member 480, plate member 475, push member 465, and plate member 470 can be inserted into the extension member 455 from any suitable end to provide any desired configuration (e.g., providing...). Figure 8 (As shown in the construction or sequence). An elongation member 455 (e.g., where a bushing member 480, a plate member 475, a pusher member 465, and a plate member 470 are received on the elongation member 455) can be inserted into the elongation member 310. The elongation member 455 can be inserted into the elongation member 310 such that the elongation member 455 extends to the vicinity of the surface 490 of the structural assembly 315. For example, when the elongation member 455 is received on the elongation member 310, the elongation member 455 can abut against the surface 490 of the structural assembly 315. When the elongation member 455 is received on the elongation member 310, the bushing member 480 can be adjacent to and / or directly facing the cavity 445 of the shaft clamp 390.

[0050] like Figure 11 As shown, a fastener assembly 320, including a washer 335 and a fastener 330, can be attached to an extension member 310 to attach an inner shaft assembly 385 to the extension member 310. For example, as Figure 11 As shown, the fastener assembly 320 can be attached to a portion of the elongation member 310 that extends from the inner shaft assembly 385 (e.g., from the elongation member 455).

[0051] In step 625, for example, as Figure 11 As shown, the outer shaft assembly 380 can be inserted into the inner shaft assembly 385 and the extension member 310, and attached to the shaft chuck 390. The protruding portion 400 of the outer shaft assembly 380 can be fastened to the protruding portion 430 of the shaft chuck 390 by fasteners 420, which are fastened through corresponding holes 415 and 440.

[0052] In step 630, for example, as Figure 11As shown, drill bit 355 can be connected to external spindle assembly 380 via drill chuck 360 and drill adapter 365. Drill adapter 365 can be attached to attachment member 405 of external spindle assembly 380. Drill chuck 360 can be attached to drill bit 355, and drill adapter 365 can be attached to drill chuck 360.

[0053] In step 635, as Figure 11 and Figure 12 As shown, drill bit 355 can be energized, and assembly 305 can core-take samples through or through holes in structural assembly 315. In at least some exemplary embodiments, drill bit 355 can rotate components of drill bit assembly 340, shaft assembly 350, and core assembly 345 to rotate core member 370, thereby core-taking samples through or through holes in structural assembly 315. When assembly 305 operates, as... Figure 11 As shown, the core component 370 is drilled from surface 490, and as... Figure 12 As shown, it drills into or through structural assembly 315. While the remaining components of assembly 305 are drilled downwards into structural assembly 315, the inner shaft assembly 385a can remain substantially stationary relative to the elongation member 310 and structural assembly 315 (e.g., the elongation member 455 based on the inner shaft assembly 385 abuts against surface 490 of structural assembly 315). When assembly 305 drills downwards into structural assembly 315, as... Figure 11 and Figure 12 As shown, the lengths of the portions of the elongating members 310 and 455 disposed in the cavity 410 of the outer shaft assembly 380 increase, and the pushing member 465 can be compressed. For example, when assembly 305 is drilled downward into structural assembly 315, the pushing member 465 can be compressed by any suitable technique, such as the plate member 470 engaging a protrusion disposed on the inner surface of the body member 395, or any other suitable mechanical interaction between the inner shaft assembly 385 and the outer shaft assembly 380. When the plate member 470, the force-applying member 465, the plate member 475, and the bushing member 480 are pushed toward the cavity 445 of the shaft chuck 390 and the pushing member 465 is compressed, the bushing member 480 is pushed into the cavity 445 and presses against one or more wall members 450 in the shaft chuck 390. When the bushing member 480 enters the cavity 445 and abuts against one or more wall members 450, the bushing member 480 is compressed, applying a compressive force to the outer surface of the elongation member 455. The elongation member 455 can thus apply a compressive force to the elongation member 310, which may be disposed in the cavity 485 of the elongation member 455. Therefore, for example, as... Figure 12As shown, when component 305 drills into or passes through (e.g., completes drilling into or through) structural component 315, bushing member 480 can be operated to compress or clamp elongated member 455 and elongated member 310 together. The length of elongated member 310, which protrudes from structural component 315 and extends into cavity 410 of outer bushing component 380, can be a predetermined length before drilling operation to provide the desired point at which bushing member 480 applies compressive force to elongated members 455 and 310 (e.g., providing compressive force applied by bushing member 480 when core member 370 drills through a desired amount or thickness of structural component 315).

[0054] In step 640, component 305 can retract, for example from... Figure 12 Move to the position shown Figure 13The position is shown. During retraction, a portion of structural assembly 315 (e.g., core 495 including elongated member 310) is removed from structural assembly 315. Core 495 may be, for example, a cylindrical portion corresponding to the cross-section of core member 370 (e.g., or any other suitable shape). During retraction, bushing member 480 continues to compress or clamp elongated member 455 and elongated member 310 together. In at least some exemplary embodiments, during extraction, bushing member 480 maintains compression of elongated member 455 (e.g., elongated member 455 engages with fastener assembly 320 connected to elongated member 310, causing elongated member 310 to retract with core 495 attached). Because the elongated member 310 remains drilled and adhered (e.g., epoxy resin attachment and / or may be replaced by an expansion anchor instead of epoxy resin adhesion) to the core 495, and the bushing member 480 continues to compress or clamp the elongated member 455 and the elongated member 310 together, the core 495 remains in the core member 370 when the assembly 305 is retracted (e.g., contrary to the case where the core 495 detaches from the core member 370). For example, during retraction, the drilled and epoxy resin-attached connection maintains the attachment between the core 495 and the elongated member 310, and the compression from the bushing member 480 maintains the attachment between the elongated members 310 and 455 during retraction, such that the core 495 remains attached to the assembly 305. The core 495 can then be removed from the assembly 305 and moved by the user of the system 300 to a desired location. In at least some exemplary embodiments, the reverse drill bit 355 may not release the pressure exerted on the elongation member 455 by the bushing member 480 (e.g., by removing the fastener 420 from the protrusions 400 and 430, and then pushing the member 465 and plate members 470 and 475, the pressure on the bushing member 480 will be released, and then the bushing member 480 will release the pressure on the elongation member 445). Additionally, for example, in at least some exemplary embodiments, the drill bit 355 may be reversed or removed to release the compressive force from the pushing member 465, which may allow the bushing member 480 to be removed from the cavity 445 of the chuck 390, thereby releasing the compressive or clamping force between the elongation members 310 and 455. Furthermore, for example, during the disassembly of assembly 305 (e.g., the process may be substantially the reverse of steps 610 to 630 described above), the internal shaft assembly 385 and the elongation member 310, which remain attached to the core 495, may be removed from each other. The user of system 300 can then move the core 495 with the attached elongated member 310 to a desired location (e.g., to perform a test). If necessary, the elongated member 310 can be cut and / or removed from the core 495. Process 600 ends at step 645.

[0055] In at least some exemplary embodiments, the exemplary disclosed systems, apparatuses, and methods may include a drilling adapter, such as a concrete core drilling adapter configured to hold a core in a drill bit for core extraction. For example, the exemplary disclosed systems, apparatuses, and methods may include a modified core drilling shaft attached to a core drill bit and preventing the core from falling out of the drill bit.

[0056] In at least some exemplary embodiments, an exemplary disclosed method for removing a portion of a structure may include: attaching a first elongated member (e.g., elongated member 310) to a portion of the structure; receiving a second elongated member (e.g., elongated member 455) of a drilling assembly with the first elongated member; drilling into the structure with the drilling assembly while receiving the second elongated member with the first elongated member; and removing the portion of the structure attached to the first elongated member while pushing the first elongated member with the second elongated member. Pushing the first elongated member with the second elongated member may include pushing a bushing member disposed on the second elongated member into a cavity disposed in the drilling assembly. When the bushing member is pushed into the cavity, the bushing member may compress the second elongated member, and the second elongated member may compress the first elongated member received in the second elongated member. The bushing member may be a chuck, the first elongated member may be a rod, and the second elongated member may be a hollow structural member configured to receive a rod. Attaching the first elongated member to a portion of the structure may include drilling and epoxy-attaching the first elongated member, which may be a threaded rod, into a structure that may be a concrete structure. Drilling into the structure using a drilling assembly while receiving the second elongated member with the first elongated member may include core extraction from the structure using a core member attached to an external shaft assembly, which may include a cavity in which the first and second elongated members are located during drilling. The first and second elongated members may remain substantially stationary relative to the structure during drilling, while the core member drills into the structure and the external shaft assembly moves toward the structure. Removing this portion of the structure while pushing the first elongated member with the second elongated member may include clamping the first elongated member with the second elongated member and removing the drilled portion of the structure that was attached to the first elongated member.

[0057] In at least some exemplary embodiments, the exemplary disclosed drilling assembly may be configured to receive a first elongated member (e.g., elongated member 310) attached to a part of a structure, and to remove that part of the structure. The exemplary disclosed drilling assembly may include: a second elongated member (e.g., elongated member 455) including a first cavity (e.g., cavity 485) configured to receive the first elongated member; an external shaft assembly (e.g., external shaft assembly 380) including a second cavity (e.g., cavity 410) configured to receive the second elongated member; a shaft chuck (e.g., shaft chuck 390) removably attached to the external shaft assembly and including a third cavity (e.g., cavity 445); and a bushing member disposed on the second elongated member and configured to be received in the third cavity. The tapered wall members of the shaft chuck may form the tapered third cavity, and the bushing member may be tapered to fit into the third cavity, with the outer surface of the bushing member abutting against the tapered wall members when the bushing member is received in the third cavity. The exemplary disclosed drilling assembly may include a drill bit that can be attached to an external shaft assembly via a drill chuck and a drill bit adapter. The exemplary disclosed drilling assembly may also include a core drill bit that can be attached to a shaft chuck via a core adapter. The exemplary disclosed drilling assembly may also include a plurality of washers and a spring that can be disposed on a second elongated member, the spring being configured to push a bushing member into a third cavity. The spring may be disposed between the plurality of washers, and the bushing member may be a chuck disposed between one of the washers and the third cavity when the second elongated member is received in the second cavity and the shaft chuck is removably attached to the external shaft assembly. The second elongated member may include a protrusion that may be located in the second cavity when the second elongated member is received by the second cavity. The shaft chuck may include a first flange that can be configured to be removably fastened to a second flange of the external shaft assembly.

[0058] In at least some exemplary embodiments, an exemplary disclosed method for removing a portion from a concrete structure may include: drilling a hole and attaching a threaded rod to the portion of the concrete structure with epoxy resin; receiving an elongated member (e.g., elongation member 455) of a drilling assembly with the threaded rod; core-taking in the concrete structure with the drilling assembly while receiving the elongated member with the threaded rod; and removing the portion of the concrete structure attached to the threaded rod while clamping the threaded rod with the elongated member. The disclosed exemplary method may further include: removably securing the elongated member to the threaded rod by threading a nut onto a portion of the threaded rod extending beyond the elongated member while the elongated member is received on the threaded rod. Core-taking in the concrete structure with the drilling assembly while receiving the elongated member with the threaded rod may include core-taking in the concrete structure with a core member attached to an external shaft assembly including a cavity therein where the elongated member and the threaded rod are located during drilling. During core-taking, the threaded rod and the elongated member may remain substantially stationary relative to the concrete structure, while during core-taking, the core member is core-taken in the concrete structure and the external shaft assembly moves toward the concrete structure.

[0059] The exemplary systems, apparatuses, and methods disclosed can provide an efficient and effective core extraction technique. The exemplary systems, apparatuses, and methods disclosed can prevent the extracted core from falling into areas below the extraction location. For example, the exemplary systems, apparatuses, and methods disclosed can extract and retain the core, thereby preventing the core from falling into traffic-bearing areas or other areas susceptible to falling objects (e.g., cores falling from the extraction location).

[0060] While several embodiments have been disclosed, other embodiments of this disclosure will become apparent to those skilled in the art from the detailed description. Some aspects of this disclosure may be practiced without implementing some of the described features. It should be understood that some details have not been described in detail so as not to unnecessarily obscure the focus of this disclosure. Numerous modifications can be made to this disclosure in various obvious aspects without departing from the spirit and scope thereof. Therefore, the drawings and description should be regarded as illustrative rather than restrictive.

Claims

1. A method for removing a portion of a structure, comprising: Attach the first elongated member to a portion of the structure; The first elongated member receives the second elongated member of the drilling assembly; While receiving the second elongated member with the first elongated member, the drilling assembly is used to drill into the structure; as well as While pushing the first elongated member with the second elongated member, the portion of the structure attached to the first elongated member is removed. During drilling, the first elongated member and the second elongated member remain substantially stationary relative to the structure, while the core member drills into the structure and the outer shaft assembly moves toward the structure.

2. The method according to claim 1, wherein, Pushing the first elongated member with the second elongated member includes pushing a bushing member disposed on the second elongated member into a cavity disposed in the drilling assembly.

3. The method according to claim 2, wherein, When the bushing member is pushed into the cavity, the bushing member compresses the second elongated member, and the second elongated member compresses the first elongated member received in the second elongated member.

4. The method according to claim 2, wherein, The bushing component is a chuck, the first elongated component is a rod, and the second elongated component is a hollow structural component configured to receive the rod.

5. The method according to claim 1, wherein, Attaching the first elongated member to the structure includes drilling the first elongated member, which is a threaded rod, into and attaching it to the structure, which is a concrete structure, with epoxy resin.

6. The method according to claim 1, wherein, Drilling into the structure with the drilling assembly while receiving the second elongated member with the first elongated member includes core extraction in the structure with a core member attached to the external shaft assembly, the external shaft assembly including cavities disposed therein by the first elongated member and the second elongated member during drilling.

7. The method according to claim 1, wherein, Removing a portion of the structure while pushing the first elongated member with the second elongated member includes clamping the first elongated member with the second elongated member and removing the drilled portion of the structure that is attached to the first elongated member.

8. A drilling assembly configured to receive and remove a portion of a structure by a first elongated member attached to a portion of the structure, the drilling assembly comprising: The second elongating member includes a first cavity configured to receive the first elongating member; An external shaft assembly includes a second cavity configured to receive the second elongated member; A shaft chuck is removably attached to an external shaft assembly and includes a third cavity; A bushing member is disposed on the second elongated member and configured to be received in the third cavity; as well as A core drill bit, which is attached to the shaft chuck via a core adapter.

9. The drilling assembly according to claim 8, wherein, The tapered wall member of the shaft chuck forms a tapered third cavity, and the bushing member is gradually reduced in size to fit into the third cavity. When the bushing member is received in the third cavity, the outer surface of the bushing member abuts against the tapered wall member.

10. The drilling assembly of claim 8, further comprising a drill bit attached to the external shaft assembly via at least one of a drill chuck and a drill adapter.

11. The drilling assembly of claim 8, further comprising a plurality of washers and springs disposed on the second elongation member, the springs being configured to push the bushing member into the third cavity.

12. The drilling assembly according to claim 11, wherein, The spring is disposed between the plurality of washers, and the bushing member is a chuck disposed between one of the plurality of washers and the third cavity when the second elongation member is received in the second cavity and the shaft chuck is removably attached to the external shaft assembly.

13. The drilling assembly according to claim 8, wherein, The second elongating member includes a protrusion that is located in the second cavity when the second elongating member is received by the second cavity.

14. The drilling assembly according to claim 8, wherein, The shaft chuck includes a first flange configured to be removably fastened to a second flange of the external shaft assembly.

15. A method for removing a portion from a concrete structure, comprising: Drill holes and attach threaded rods to portions of the concrete structure using epoxy resin; The threaded rod is used to receive the elongated member of the drilling assembly; While receiving the elongated member with the threaded rod, the core is extracted from the concrete structure using the drilling assembly; While clamping the threaded rod with the elongated member, remove the portion of the concrete structure attached to the threaded rod; as well as When the elongated member is received on the threaded rod, the elongated member is removably fastened to the threaded rod by threading a nut onto the portion of the threaded rod extending from the elongated member.

16. The method according to claim 15, wherein, Core taking in the concrete structure with the drilling assembly while receiving the elongated member with the threaded rod includes core taking in the concrete structure with a core member attached to an external shaft assembly, the external shaft assembly including a cavity therein where the elongated member and the threaded rod are located during drilling.

17. The method according to claim 16, wherein, During the core sampling, the threaded rod and the elongated member remain substantially stationary relative to the concrete structure, while the core member extracts a core from the concrete structure, and the outer shaft assembly moves toward the concrete structure.

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