A device for intermittent alternating operation of a vibration hammer and a hydraulic hammer and a construction method thereof

Abstract

The present invention provides a device and construction method for intermittent alternating operation of a vibratory hammer and a hydraulic hammer. The device comprises: a striking block detachably connected to the top of a steel pipe pile, a vibratory hammer installed around the striking block, a contact switch embedded in the top surface of the striking block, and a hydraulic hammer that can contact the top surface of the striking block, wherein the contact switch is electrically connected to the control system of the vibratory hammer. The construction method is to alternately operate a vibratory hammer and a hydraulic hammer. The hydraulic hammer of the present invention can directly act on the surface of the striking block, and a process of mutual cooperation is formed through continuous circulation. An opening is provided on the surface of the striking block, and a contact switch is placed inside the opening. In this way, the vibratory hammer and the hydraulic hammer work alternately, thereby achieving intermittent alternating construction of vibratory hammer and hydraulic hammer on steel pipe piles to assist in sinking super-long steel pipe piles.

Description

Technical Field

[0001] The invention relates to the field of steel pipe pile sinking construction, and in particular to a device for intermittently alternating operation of a vibrating hammer and a hydraulic hammer and a construction method thereof. Background Art

[0002] Traditional super-long steel pipe pile sinking construction tools and methods:

[0003] 1. A vibratory pile hammer is a device that generates a strong excitation force to drive the pile into the ground after being powered on. The characteristics of an electric vibratory pile hammer are low frequency, heavy weight and large amplitude.

[0004] 2. Hydraulic vibratory hammer is developed on the basis of electric vibratory hammer and belongs to impact pile hammer. The characteristics of hydraulic vibratory pile hammer are high frequency, light weight and small amplitude.

[0005] Therefore, when the power or exciting force is equivalent: the electric vibratory pile hammer is more conducive to sinking piles when the pile end area is large, and the hydraulic vibratory hammer is more conducive to sinking piles when the pile end area is small; the electric vibratory hammer is more conducive to sinking and pulling piles in clay soil layers, and the hydraulic vibratory hammer is more conducive to sinking and pulling piles in sandy soil; the electric vibratory hammer cannot operate underwater because it is driven by an electric motor and has poor waterproof performance; the hydraulic vibratory hammer can operate both above and below water and does not require any special treatment.

[0006] Based on this, the present invention provides a device and a construction method for assisting the sinking of super-long steel pipe piles by intermittently alternating the action of a vibrating hammer and a hydraulic hammer. Summary of the invention

[0007] The purpose of the present invention is to provide a device and a construction method for intermittently alternating operation of a vibrating hammer and a hydraulic hammer. The vibrating hammer and the hydraulic hammer operate alternately, thereby improving the efficiency of sinking super-long steel pipe piles.

[0008] The technical solution for achieving the purpose of the present invention is as follows:

[0009] A construction method for intermittent alternating operation of a vibratory hammer and a hydraulic hammer comprises the following steps:

[0010] Step 1: Use a vibrating hammer to hit the steel pipe pile;

[0011] Step 2: The hydraulic hammer contacts the upper surface of the striking block, the vibratory hammer stops working, and the hydraulic hammer strikes the steel pipe pile;

[0012] Step 3: The hydraulic hammer leaves the upper surface of the striking block, and the vibrating hammer strikes the steel pipe pile;

[0013] Step 4: Repeat steps 2 and 3 until the pile driving construction is completed.

[0014] As a further improvement of the present invention, in step 2, when the hydraulic hammer falls, it first contacts a contact switch arranged on the surface of the striking block, the contact switch is actuated, and the vibrating hammer stops working instantly.

[0015] A device for intermittent alternating operation of a vibratory hammer and a hydraulic hammer comprises: a striking block detachably connected to the top of a steel pipe pile, a vibratory hammer installed around the striking block, a contact switch embedded in the top surface of the striking block, and a hydraulic hammer capable of contacting the top surface of the striking block, wherein the contact switch is electrically connected to a control system of the vibratory hammer.

[0016] The hydraulic hammer of the present invention can directly act on the surface of the striking block, and a process of mutual cooperation is formed through continuous circulation. The surface of the striking block is provided with an opening, and a contact switch is placed in the opening. In this way, the vibrating hammer and the hydraulic hammer work alternately and reciprocally, thereby realizing intermittent alternation of the vibrating hammer and the hydraulic hammer on the steel pipe pile to assist in sinking the super-long steel pipe pile.

[0017] As a further improvement of the present invention, the contact switch is a normally open switch. When the contact switch is closed, the vibrating hammer stops working, and when the contact switch is opened, the vibrating hammer works.

[0018] As a further improvement of the present invention, the contact switch is a normally closed switch. When the contact switch is disconnected, the vibrating hammer stops working, and when the contact switch is closed, the vibrating hammer starts working.

[0019] As a further improvement of the present invention, the striking block consists of a main body and a flange, the flange is formed by vertically extending upward from the top surface of the main body, an annular mounting surface is formed on the contact surface between the main body and the flange, the vibrating hammer is installed on the annular mounting surface, and the top surface of the vibrating hammer is lower than the top surface of the flange.

[0020] As a further improvement of the present invention, an annular receiving cavity is provided at the bottom end of the body, and a clamping mechanism for clamping the top end of the steel pipe pile is installed in the annular receiving cavity.

[0021] As a further improvement of the present invention, the clamping mechanism comprises: an adjustment block, an adjustment turntable, and a plurality of clamping blocks for clamping the steel pipe piles;

[0022] A plurality of clamping blocks are arranged below the adjusting turntable, and the plurality of clamping blocks are evenly distributed around the circumference of the adjusting turntable;

[0023] The upper surface of the adjusting dial is provided with a rack, and the contact portion between the adjusting block and the adjusting dial is provided with a rack, and the adjusting dial and the adjusting block are meshed through the rack;

[0024] The lower surface of the adjusting turntable is provided with a nest-shaped spiral thread, and the upper surface of the clamping block is also provided with a nest-shaped spiral thread, and the clamping block and the adjusting turntable are connected through threaded matching;

[0025] Twist the adjusting block to rotate the adjusting dial, thereby driving the clamping block to clamp or loosen the steel pipe pile.

[0026] As a further improvement of the present invention, the bottom end of each clamping block is provided with an arc block, and a plurality of the arc blocks clamp the steel pipe pile. The present invention uses the arc blocks to clamp the steel pipe pile, and the clamping effect is better.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] The present invention discloses a device and a construction method for intermittently alternating construction using a vibrating hammer and a hydraulic hammer when sinking super-long steel pipe piles, which fully combines the advantages of the vibrating hammer and the hydraulic hammer, avoids the disadvantages of the two equipments, and improves the efficiency of sinking super-long steel pipe piles. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a cross-sectional view of a device for intermittently alternating operation of a vibratory hammer and a hydraulic hammer;

[0030] Figure 2 for Figure 1 A-direction view;

[0031] Figure 3 for Figure 1 B-direction view;

[0032] Figure 4 A bottom view of the adjustment dial 3;

[0033] Figure 5 Use process view for clamping;

[0034] Figure 6 It is a schematic diagram of the structure of the upper surface of the clamping block.

[0035] In the figure, 01, steel pipe pile; 1, striking block; 2, vibrating hammer; 3, adjusting dial; 4, adjusting block; 5, clamping block; 51, raised thread; 6, contact switch; 7, hydraulic hammer; 8, arc block; 9, strip opening; 10, nested spiral thread. DETAILED DESCRIPTION

[0036] The present invention is described in detail below in conjunction with the various embodiments shown in the accompanying drawings, but it should be noted that these embodiments are not limitations of the present invention, and any equivalent transformations or substitutions in functions, methods, or structures made by ordinary technicians in the field based on these embodiments are all within the scope of protection of the present invention.

[0037] In the description of this embodiment, it should be understood that the terms "center", "longitudinal", "lateral", "upper",

[0038] "Bottom", "Front", "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inside", "Outside"

[0039] The orientations or positional relationships indicated are based on the orientations or positional relationships shown in the drawings and are only for the convenience of describing the invention and simplifying the description. They do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, they should not be understood as limitations on the invention.

[0040] The terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the invention can be understood according to specific circumstances.

[0041] Embodiment 1:

[0042] This embodiment provides a construction method and device for improving the efficiency of steel pipe pile sinking. The construction method includes the following steps:

[0043] Step 1: Vibratory hammer 2 strikes steel pipe pile 01;

[0044] Step 2: The hydraulic hammer 7 contacts the upper surface of the striking block 1, the vibrating hammer 2 stops working, and the hydraulic hammer 7 strikes the steel pipe pile 01;

[0045] Step 3: The hydraulic hammer 7 leaves the upper surface of the striking block 1, and the vibrating hammer 2 strikes the steel pipe pile 01;

[0046] Step 4: Repeat steps 2 and 3 until the pile driving construction is completed.

[0047] Among them, in step 2, when the hydraulic hammer 7 falls, it first contacts the contact switch 6 arranged on the surface of the striking block 1, and the contact switch 6 is actuated, and the vibration hammer 2 stops working instantly.

[0048] A device for intermittent alternating operation of a vibrating hammer and a hydraulic hammer, such as Figure 1-Figure 5As shown, it includes: a striking block 1 detachably connected to the top of the steel pipe pile 01, a vibrating hammer 2 installed around the striking block 1, a contact switch 6 embedded in the top surface of the striking block 1, and a hydraulic hammer 7 that can contact the top surface of the striking block 1. The contact switch 6 is electrically connected to the control system of the vibrating hammer 2. The hydraulic hammer 7 of this embodiment can directly act on the surface of the striking block 1, and a process of mutual cooperation is formed through continuous circulation. The surface of the striking block 1 is provided with an opening, and the contact switch 6 is placed inside the opening. In this way, the vibrating hammer 2 and the hydraulic hammer 7 work alternately and reciprocally, so as to achieve the intermittent alternation of the vibrating hammer 2 and the hydraulic hammer 7 on the steel pipe pile 01 to assist in sinking the super-long steel pipe pile 01.

[0049] In this embodiment, the contact switch 6 is preferably a normally open switch. When the contact switch 6 is closed, the vibrating hammer 2 stops working, and when the contact switch 6 is disconnected, the vibrating hammer 2 works. Of course, the contact switch 6 is a normally closed switch. When the contact switch 6 is disconnected, the vibrating hammer 2 stops working, and when the contact switch 6 is closed, the vibrating hammer 2 works. The selection of the normally open or normally closed type of the contact switch 6 only needs to be selected according to the actual situation.

[0050] In this embodiment, the striking block 1 is preferably composed of a body and a flange, the flange is formed by vertically extending upward from the top surface of the body, an annular mounting surface is formed on the contact surface between the body and the flange, the vibrating hammer 2 is mounted on the annular mounting surface, and the top surface of the vibrating hammer 2 is lower than the top surface of the flange. Preferably, an annular placement cavity is provided at the bottom end of the body, and a clamping mechanism for clamping the top of the steel pipe pile 01 is installed in the annular placement cavity.

[0051] like Figure 1 and Figure 5 As shown, the clamping mechanism includes: an adjustment block 4, an adjustment dial 3, and a plurality of clamping blocks 5 for clamping the steel pipe pile 01; the plurality of clamping blocks 5 are arranged below the adjustment dial 3, and the plurality of clamping blocks 5 are evenly distributed around the circumference of the adjustment dial 3; a rack is arranged on the upper surface of the adjustment dial 3, and a rack is arranged at the contact portion between the adjustment block 4 and the adjustment dial 3, and the adjustment dial 3 and the adjustment block 4 are meshed through the rack; a nest-shaped spiral thread 10 is arranged on the lower surface of the adjustment dial 3, and a nest-shaped spiral thread 10 is also arranged on the upper surface of the clamping block 5, and the clamping block 5 is connected to the adjustment dial 3 through threaded matching; the adjustment block 4 is screwed to rotate the adjustment dial 3, thereby driving the clamping block 5 to clamp or loosen the steel pipe pile 01. Preferably, an arc block 8 is arranged at the bottom end of each clamping block 5, and the plurality of arc blocks 8 clamp the steel pipe pile 01. In this embodiment, the arc block 8 is used to clamp the steel pipe pile 01, and the clamping effect is better.

[0052] Implementation:2:

[0053] Based on the solution disclosed in Example 1, this example is described in detail as follows.

[0054] This embodiment provides a device and construction method for assisting the sinking of super-long steel pipe piles by intermittent alternating action of a vibrating hammer and a hydraulic hammer: a structure that mainly improves construction efficiency by mutually alternating and coordinating work of a vibrating hammer and a hydraulic hammer, and can ensure that it is suitable for pipe piles of different diameters. A vibrating hammer 2 is arranged around the knocking block 1. Since the action of the vibrating hammer 2 on the knocking block 1 can be transmitted to the pipe pile 01 arranged under the knocking block 1, this embodiment mainly enables the vibrating hammer to effectively knock on the pipe pile 01 while fixing the pipe pile 01. An adjusting dial 3 is arranged inside the lower part of the knocking block 1, an adjusting block 4 is arranged on one side wall of the knocking block 1, a rack is arranged on the upper surface of the adjusting dial 3, a rack is arranged on the contact part between the adjusting block 4 and the adjusting dial 3, the adjusting dial 3 and the adjusting block 4 are meshed through the rack, a nest-shaped spiral thread is arranged on the lower surface of the adjusting dial 3, and a plurality of clamping blocks 5 are arranged below the adjusting dial 3 in the circumferential direction. The upper surface of the clamping block 5 is provided with a nest-shaped spiral thread, and the clamping block 5 is connected to the adjusting dial 3 through threaded cooperation. Twisting the adjusting block 4 can rotate the adjusting dial 3, and the rotation of the adjusting dial 3 will drive the clamping block 5 to move back and forth along the diameter direction of the pipe pile 01, and the arc block 8 provided at the lower end of the clamping block 5 will clamp the pipe pile 01, so that the pipe piles 01 of different pipe diameters can be clamped by the arc block 8, so as to perform the knocking action more effectively. The clamping block 5 is a T-shaped design, and the upper end of the clamping block 5 can ensure the upper and lower relationship in the strip opening 9 of the knocking block 1.

[0055] The contact part between the adjusting block 4 and the adjusting dial 3 is the contact effect between gears. The surface of the adjusting block 4 is a series of raised gear effects. The upper end surface of the adjusting dial 3, that is, the part in contact with the adjusting block 4, is also a series of racks, and the racks are meshed with each other. Figure 6 As shown, the upper surface of the clamping block 5 has a series of raised threads 51. When the adjusting block 4 is rotated, the gear part of the adjusting block 4 will drive the adjusting dial 3 to rotate, because the two are meshed by the principle of gears. When the adjusting dial 3 rotates, the clamping block 5 connected below the adjusting dial 3 will move back and forth in the radial direction of the pipe pile 01 under the action of the threaded connection. Since the lower surface of the adjusting dial 3, that is, the surface in contact with the clamping block 5, is designed as follows Figure 4 The effect is that when the rotation 3 is performed, the clamping block 5 will be driven to move back and forth in the radial direction of the pipe pile 01.

[0056] When the hydraulic hammer 7 leaves the surface of the striking block 1, the vibrating hammer 2 starts to work and starts to strike the pipe pile 01. When the hydraulic hammer falls, it first contacts the contact switch 6 set on the surface of the striking block. When the contact switch 6 receives a signal, the vibrating hammer 2 stops working instantly. The hydraulic hammer can directly act on the surface of the striking block 1, and a process of mutual cooperation is formed through continuous circulation. The surface of the striking block 1 is provided with an opening, and the contact switch 6 is placed inside the opening. In this way, the vibrating hammer and the hydraulic hammer work alternately and reciprocally, so as to achieve the intermittent alternation of the vibrating hammer and the hydraulic hammer on the steel pipe pile to help sink the super-long steel pipe pile.

[0057] The present embodiment uses a device and a construction method for intermittent alternation of a vibratory hammer and a hydraulic hammer when sinking extra-long steel pipe piles, which fully combines the advantages of both the vibratory hammer and the hydraulic hammer, avoids the disadvantages of both equipment, improves the efficiency of sinking extra-long steel pipe piles, and shortens the construction period.

[0058] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the present invention. They are not intended to limit the scope of protection of the present invention. Any equivalent implementation methods or changes that do not deviate from the technical spirit of the present invention should be included in the scope of protection of the present invention.

[0059] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0060] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A construction method for intermittently alternating operation of a vibratory hammer and a hydraulic hammer, comprising a device for intermittently alternating operation of a vibratory hammer and a hydraulic hammer, characterized in that: The device for intermittently alternating operation of the vibrating hammer and the hydraulic hammer comprises a striking block detachably connected to the top of the steel pipe pile, a vibrating hammer installed around the striking block, a contact switch embedded in the top surface of the striking block, and a hydraulic hammer capable of contacting the top surface of the striking block, wherein the contact switch is electrically connected to a control system of the vibrating hammer; The contact switch is a normally open switch. When the contact switch is closed, the vibration hammer stops working, and when the contact switch is disconnected, the vibration hammer works; or the contact switch is a normally closed switch. When the contact switch is disconnected, the vibration hammer stops working, and when the contact switch is closed, the vibration hammer works. The striking block is composed of a body and a flange. The flange is formed by vertically extending upward from the top surface of the body. An annular mounting surface is formed on the contact surface between the body and the flange. The vibration hammer is mounted on the annular mounting surface. The top surface of the vibration hammer is lower than the top surface of the flange. An annular receiving cavity is provided at the bottom end of the body. A clamping mechanism for clamping the top of the steel pipe pile is installed in the annular receiving cavity. The clamping mechanism comprises: an adjusting block, an adjusting turntable, and a plurality of clamping blocks for clamping the steel pipe piles; A plurality of clamping blocks are arranged below the adjusting turntable, and the plurality of clamping blocks are evenly distributed around the circumference of the adjusting turntable, a rack is arranged on the upper surface of the adjusting turntable, a rack is arranged on the contact portion between the adjusting block and the adjusting turntable, the adjusting turntable and the adjusting block are meshed with the rack, a nest-shaped spiral thread is arranged on the lower surface of the adjusting turntable, a nest-shaped spiral thread is also arranged on the upper surface of the clamping block, the clamping block and the adjusting turntable are connected by threaded cooperation, the adjusting turntable is rotated by twisting the adjusting block, and then the clamping block is driven to clamp or loosen the steel pipe pile, an arc block is arranged on the bottom end of each of the clamping blocks, and a plurality of the arc blocks clamp the steel pipe pile; The construction method using a device that intermittently alternates between a vibrating hammer and a hydraulic hammer comprises the following steps: Step 1: Use a vibrating hammer to hit the steel pipe pile; Step 2: The hydraulic hammer contacts the upper surface of the striking block, the vibratory hammer stops working, and the hydraulic hammer strikes the steel pipe pile; In the step 2, when the hydraulic hammer falls, it first contacts the contact switch arranged on the surface of the striking block, and the contact switch is actuated, and the vibrating hammer stops working instantly; Step 3: The hydraulic hammer leaves the upper surface of the striking block, and the vibrating hammer strikes the steel pipe pile; Step 4: Repeat steps 2 and 3 until the pile driving construction is completed.

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