Self-advancing rotary jet anchor-pulling type steel sheet pile support structure

Abstract

The application provides a self-advancing rotary jet anchor-pulling type steel sheet pile supporting structure, which comprises a connection applied between a steel sheet pile and an anchor rod, and comprises a fixing seat and a connecting assembly, the connecting assembly comprises a main ring body, a first limiting assembly and a second limiting assembly, the main ring body is inserted into the fixing seat and passes through the steel sheet pile, the anchor rod passes through a channel provided at the center of the main ring body and enters the steel sheet pile, the second limiting assembly is provided with a first limiting arc plate and a second limiting arc plate, the first limiting arc plate and the second limiting arc plate act on the anchor rod located in the channel, the main ring body is provided with a locking rubber ring, and the first limiting assembly performs secondary fixation on the anchor rod located in the locking rubber ring by rotating and extruding the locking rubber ring. The first limiting assembly and the second limiting assembly provided by the application respectively fasten and fix different parts of the anchor rod, the anchor rod is kept in a fixed direction through two groups of fixing points, the deviation of the anchor rod is reduced, and the stability effect of the anchor rod after grouting is improved.

Description

Technical Field

[0001] This invention belongs to the field of building construction technology, and in particular relates to a self-propelled jet grouting anchored steel sheet pile support structure. Background Technology

[0002] Sheet pile support is a foundation engineering construction method that uses steel sheet piles drilled into the soil at a certain depth along the ground or underground to form a foundation support system, thereby reinforcing and strengthening the soil. It is often used in support projects for excavating deep pits.

[0003] In the construction of sheet pile support, self-drilling jet grouting anchors are often used as anchor points. The anchor points are formed by injecting cement mortar into the sheet pile support through the self-drilling jet grouting anchor. In the existing technology, the connection between the self-drilling jet grouting anchor and the sheet pile support is mostly directly fixed inside the sheet pile support. The connection point between the self-drilling jet grouting anchor and the sheet pile support is singular. With the injection of concrete mortar, the weight of the concrete can cause the anchor to shift, affecting the anchor point setting effect. Summary of the Invention

[0004] This invention provides a self-propelled jet grouting anchored steel sheet pile support structure, which aims to solve the problem that the weight of the injected concrete mortar causes the anchor rod to shift, affecting the anchoring point setting effect.

[0005] This invention is implemented as follows: a self-propelled jet grouting anchored steel sheet pile support structure, applied to the connection between steel sheet piles and anchor rods, includes:

[0006] A fixing base, comprising a fixing plate and a slot, wherein the fixing plate is fixed to the steel sheet pile by bolts;

[0007] A connecting assembly, comprising a main ring body, a first limiting assembly, and a second limiting assembly, wherein the main ring body is inserted into a slot through a sheet pile, and an anchor rod passes through a channel provided at the center of the main ring body into the sheet pile;

[0008] The second limiting component is provided with a first limiting arc plate and a second limiting arc plate. The first limiting arc plate and the second limiting arc plate act on the anchor rod located in the channel. The main ring body is provided with a locking rubber ring. The first limiting component performs secondary fixation on the anchor rod located inside the locking rubber ring by rotating and squeezing the locking rubber ring.

[0009] Preferably, the main ring body is provided with a partition ring inside, which divides the interior of the main ring body into a first locking region and a second locking region.

[0010] Preferably, the locking rubber ring is disposed on the partition ring, the locking rubber ring is located in the first locking area, and the first limiting component is assembled into the inner wall of the first locking area by threaded engagement.

[0011] Preferably, the second limiting component is disposed in the second locking area, the partition ring is provided with an adjustment hole, the adjustment hole is provided with an adjustment column component, and the adjustment column component passes through the housing of the second limiting component to drive the second limiting arc plate and the first limiting arc plate to deflect.

[0012] Preferably, the second limiting component further includes:

[0013] The outer shell is a ring structure, and the first limiting arc plate and the second limiting arc plate are disposed inside the outer shell and extend out of the outer shell from the inner ring of the outer shell.

[0014] An adjustment knob is connected to the ends of the first and second limiting arc plates.

[0015] The ends of the first limiting arc plate away from the adjustment knob and the ends of the second limiting arc plate away from the adjustment knob are both rotatably connected to the outer shell. The first and second limiting arc plates are in the first state by rotating the adjustment knob.

[0016] Preferably, the adjustment knob has an axisymmetric structure and is connected to the adjustment column assembly.

[0017] Preferably, the first limiting arc plate includes:

[0018] A semi-circular plate, wherein a limiting strip is provided on the inner edge of the semi-circular plate, and the limiting strip extends out of the outer shell from an opening provided on the outer shell;

[0019] Mounting base, the mounting base is provided with mounting post and limiting spring, the end of the semicircular plate is fixed to the mounting post, the limiting spring provides restoring force to the semicircular plate so that the first limiting arc plate in the second state returns to the first state;

[0020] Preferably, the adjusting column assembly includes:

[0021] An adjusting column, the end of which is connected to an adjusting knob;

[0022] A limiting ring is provided inside the adjustment hole, and several sets of limiting buckles provided around the adjustment column are in contact with the inner edge of the limiting ring; under the rotation of the adjustment column assembly, the adjustment knob completes the switching of different states.

[0023] Preferably, the inner edge of the limiting ring is provided with four sets of arc-shaped protrusions, which are in contact with the limiting buckle.

[0024] Preferably, the adjusting column is provided with a rotating bearing on its periphery, and the adjusting column is assembled into the adjusting hole through the rotating bearing.

[0025] Compared with the prior art, the embodiments of this application have the following advantages: the first limiting component and the second limiting component respectively fasten and fix different parts of the anchor rod, and the anchor rod is kept in the fixed direction by the two sets of fixing points, which improves the stability of the anchor rod after grouting and avoids the situation where the weight of the concrete after grouting changes the initial deflection direction of the anchor rod and affects the final force direction of the anchor rod, resulting in poor anchoring effect. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of a self-propelled jet grouting anchored steel sheet pile support structure provided by the present invention.

[0027] Figure 2 This is a schematic diagram of the connection component structure of a self-propelled rotary jet grouting anchored steel sheet pile support structure provided by the present invention.

[0028] Figure 3 This is a schematic diagram of the internal structure of the connecting component of a self-propelled rotary jet grouting anchored steel sheet pile support structure provided by the present invention.

[0029] Figure 4 This is a schematic diagram of the locking rubber ring and the second limiting component in a self-advancing rotary jet anchored steel sheet pile support structure provided by the present invention.

[0030] Figure 5 This is a schematic diagram of the slot structure of a self-advancing rotary jet grouting anchored steel sheet pile support structure provided by the present invention.

[0031] Figure 6 This is a schematic diagram of the first limiting arc plate, the second limiting arc plate, and the adjusting knob structure of a self-advancing rotary jet anchored steel sheet pile support structure provided by the present invention.

[0032] Figure 7 This is a schematic diagram of the first limiting arc plate structure of a self-advancing rotary jet anchored steel sheet pile support structure provided by the present invention.

[0033] Figure 8 This is a schematic diagram of the main ring structure of a self-propelled rotary jetting anchored steel sheet pile support structure provided by the present invention.

[0034] Figure 9 This is a schematic diagram of the adjusting column assembly structure of a self-advancing rotary jet grouting anchored steel sheet pile support structure provided by the present invention.

[0035] Figure 10 This is a schematic diagram of the adjusting column and limiting ring structure of a self-propelled rotary jetting anchored steel sheet pile support structure provided by the present invention.

[0036] Explanation of reference numerals in the attached figures:

[0037] 100. Fixing base; 110. Fixing plate; 120. Slot; 200. Connecting assembly; 210. Main ring body; 211. Limiting plate; 212. Partition ring; 213. Adjusting hole; 214. Locking rubber ring; 215. Adjusting column assembly; 2151. Adjusting column; 2152. Rotary bearing; 2153. Limiting buckle; 2154. Limiting ring; 220. First limiting assembly; 230. Second limiting assembly; 231. Outer shell; 232. First limiting arc plate; 2321. Semicircular plate; 2322. Limiting clip; 2323. Pin post; 2324. Mounting base; 2325. Mounting column; 2326. Limiting spring; 233. Second limiting arc plate; 234. Adjusting knob. Detailed Implementation

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0039] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0040] This invention provides a self-propelled jet grouting anchored steel sheet pile support structure, such as... Figure 1 As shown, the self-propelled jet grouting anchored steel sheet pile support structure is used for the connection between steel sheet piles and anchor rods, and includes:

[0041] A fixing base 100, comprising a fixing plate 110 and a slot 120, wherein the fixing plate 110 is fixed to the steel sheet pile by bolts;

[0042] The connecting component 200 includes a main ring body 210, a first limiting component 220 and a second limiting component 230. The main ring body 210 is inserted into the slot 120 and passes through the sheet pile. The anchor rod passes through the channel provided at the center of the main ring body 210 and enters the sheet pile.

[0043] The second limiting component 230 is provided with a first limiting arc plate 232 and a second limiting arc plate 233. The first limiting arc plate 232 and the second limiting arc plate 233 act on the anchor rod located in the channel. The main ring body 210 is provided with a locking rubber ring 214. The anchor rod is arranged through the locking rubber ring 214. The first limiting component 220 is threadedly assembled to the inner wall of the main ring body 210. During the rotation of the first limiting component 220, the locking rubber ring 214 is squeezed to fix the anchor rod.

[0044] In this embodiment, the slot 120 has a cylindrical structure and is inclinedly arranged on the fixing plate 110. The inclination angle between the slot 120 and the fixing plate 110 can be preset. During the assembly process, fixing seats 100 with different inclination angles can be selected. The inclination angle between the slot 120 and the fixing plate 110 determines the inclination of the anchor rod inserted into the steel sheet pile. In this application, the included angle between the slot 120 and the fixing plate 110 is composed of three different angles: 30°, 45°, or 60°.

[0045] In this embodiment, the first limiting component 220 and the second limiting component 230 respectively fasten and fix different parts of the anchor rod. The anchor rod is kept in the fixed direction by the two sets of fixing points, which improves the stability of the anchor rod after grouting and avoids the anchor rod's initial deflection direction being changed by the weight of the concrete after grouting, which would affect the final force direction of the anchor rod and cause poor anchoring effect.

[0046] Before assembly, the first limiting component 220 is nested around the anchor rod. After the anchor rod is fixed, the first limiting arc plate 232 and the second limiting arc plate 233 are pressed onto the anchor rod to form a first fixed position. Then, the first limiting component 220 is rotated to lock the locking rubber ring 214 to form a second fixed position around the anchor rod. The first fixed position and the second fixed position are used to keep the anchor rod in the fixed insertion direction.

[0047] In a preferred embodiment of this invention, the top of the main ring 210 is provided with a limiting plate 211; the limiting plate 211 is adapted to the groove provided on the top of the slot 120, the side wall of the slot 120 is also provided with a slot, and the lower end face of the limiting plate 211 is provided with a locking block. When the main ring 210 enters the slot 120, the limiting plate 211 will fall into the groove and the locking block will enter the slot and restrict the main ring 210 and the slot 120 from rotating relative to each other.

[0048] In this embodiment, the connecting component 200 can be movably mounted on the fixed base 100. The connecting component 200 can be adapted to the fixed base 100 with different tilt angles. During the construction process, the connecting component 200 can be assembled into the fixed base 100 with a suitable angle as needed.

[0049] As a preferred embodiment of this embodiment, the main ring body 210 is provided with a partition ring 212 inside, which divides the interior of the main ring body 210 into two independent spaces, namely a first locking area and a second locking area.

[0050] In this embodiment, the locking rubber ring 214 is located in the first locking area, and the first limiting component 220 is assembled in the first locking area by threaded engagement; during the continuous screwing of the first limiting component 220, the locking rubber ring 214 is squeezed to fix and lock the anchor rod located at the center of the locking rubber ring 214.

[0051] The second limiting component 230 is disposed in the second locking area. The partition ring 212 is provided with an adjustment hole 213. An adjustment column component 215 is disposed in the adjustment hole 213. The adjustment column component 215 passes through the housing of the second limiting component 230 and drives the second limiting arc plate 233 and the first limiting arc plate 232 to deflect to complete the locking of the anchor rod.

[0052] In a preferred embodiment of this invention, the second limiting component 230 further includes:

[0053] The outer shell 231 has a ring structure. The first limiting arc plate 232 and the second limiting arc plate 233 are disposed inside the outer shell 231 and extend out of the outer shell 231 from the inner ring.

[0054] An adjustment knob 234 is connected to the ends of the first limiting arc plate 232 and the second limiting arc plate 233.

[0055] The end of the first limiting arc plate 232 away from the adjusting knob 234 and the end of the second limiting arc plate 233 away from the adjusting knob 234 are both rotatably connected to the outer shell 231. By rotating the adjusting knob 234, the first limiting arc plate 232 and the second limiting arc plate 233 are deflected, so that the first limiting arc plate 232 and the second limiting arc plate 233 form a fixed clamping effect on the anchor rod entering the inner ring of the outer shell 231.

[0056] In this embodiment, the adjustment knob 234 has an axisymmetric multi-curved surface structure, mainly consisting of two states, such as... Figure 6The adjustment knob 234 is in a first state when it is engaged with the first limiting arc plate 232 and the second limiting arc plate 233. When the adjustment knob 234 rotates 90°, it will push away the first limiting arc plate 232 and the second limiting arc plate 233. When the first limiting arc plate 232 and the second limiting arc plate 233 are pushed away and deflected, the engagement between the first limiting arc plate 232 and the second limiting arc plate 233 and the adjustment knob 234 is in a second state. Since the adjustment knob 234 has an axisymmetric structure, if the adjustment knob 234 rotates 90° again from the second state, the engagement between the first limiting arc plate 232 and the second limiting arc plate 233 and the adjustment knob 234 will return to the first state.

[0057] In the first state, the first limiting arc plate 232 and the second limiting arc plate 233 will form a fixed clamping effect on the anchor rod entering the inner ring of the outer shell 231, while in the second state, the first limiting arc plate 232 and the second limiting arc plate 233 will release the fixed clamping effect on the anchor rod of the inner ring of the outer shell 231.

[0058] In a further preferred embodiment of the present invention, the first limiting arc plate 232 includes:

[0059] A semi-circular plate 2321, wherein a limiting strip 2322 is provided on the inner edge of the semi-circular plate 2321, and the limiting strip 2322 extends out of the outer shell 231 from an opening provided on the outer shell 231;

[0060] Mounting base 2324, mounting post 2325 and limiting spring 2326 are provided on mounting base 2324, the end of semi-circular plate 2321 is fixed to mounting post 2325, and the limiting spring 2326 provides restoring force to semi-circular plate 2321, so that the first limiting arc plate 232 in the second state returns to the first state;

[0061] In this embodiment, the mounting post 2325 has a pin hole, and a pin post 2323 is provided in the pin hole. The pin post 2323 passes through the semi-circular plate 2321 to fix the semi-circular plate 2321 to the mounting post 2325. The mounting base 2324 consists of two parts: an open slot and a semi-closed limiting slot. The open slot is used to assemble the semi-circular plate 2321, while the limiting slot has an open window only at the top. The limiting spring 2326 is arranged inside the limiting slot. The limiting spring 2326 is a torsion spring structure that provides elastic force for the semi-circular plate 2321 to return to its original position. The first limiting arc plate 232 and the second limiting arc plate 233 are symmetrically arranged inside the outer shell 231.

[0062] In a further preferred embodiment of the present invention, the adjusting column assembly 215 includes:

[0063] Adjustment column 2151, the end of which is connected to adjustment knob 234;

[0064] A rotating bearing 2152 is provided on the periphery of the adjusting column 2151, and the adjusting column 2151 is assembled into the adjusting hole 213 through the rotating bearing 2152.

[0065] A limiting ring 2154 is provided inside the adjusting hole 213. Several sets of limiting buckles 2153 arranged around the adjusting column 2151 are in contact with the inner edge of the limiting ring 2154. Under the rotation of the adjusting column assembly 215, the adjusting knob 234 completes the switching of different states to achieve the purpose of locking and unlocking.

[0066] In this embodiment, the inner edge of the limiting ring 2154 is provided with four sets of arc-shaped protrusions. The limiting buckle 2153 is limited by the protrusions during rotation. The limiting spring 2326 generates a torsional force in the opposite direction to the rotation direction of the limiting buckle 2153. The torsional force generated by the limiting spring 2326 holds the limiting buckle 2153 against the protrusions of the limiting ring 2154.

[0067] It should be noted that, for the sake of simplicity, the foregoing embodiments are all described as a series of actions. However, those skilled in the art should understand that the present invention is not limited to the described order of actions, as some steps may be performed in other orders or simultaneously according to the present invention. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and modules involved are not necessarily essential to the present invention.

[0068] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit the scope of protection of the invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of the present invention according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of the present invention. These technical solutions also fall within the scope of protection of the present invention.

Claims

1. A self-propelled jet grouting anchored steel sheet pile support structure, used for the connection between steel sheet piles and anchor rods, characterized in that, include: A fixing base, comprising a fixing plate and a slot, wherein the fixing plate is fixed to the steel sheet pile by bolts; A connecting assembly includes a main ring body, a first limiting assembly, and a second limiting assembly. The main ring body is inserted into a slot and passes through a sheet pile. An anchor rod passes through a channel provided at the center of the main ring body and enters the sheet pile. A partition ring is provided inside the main ring body, which divides the interior of the main ring body into a first locking area and a second locking area. The second limiting component is provided with a first limiting arc plate and a second limiting arc plate. The first limiting arc plate and the second limiting arc plate act on the anchor rod located in the channel. The second limiting component is set in the second locking area. The partition ring is provided with an adjustment hole. An adjustment column assembly is provided in the adjustment hole. The adjustment column assembly passes through the shell of the second limiting component and drives the second limiting arc plate and the first limiting arc plate to deflect. The second limiting component also includes: The outer shell is a ring structure, and the first limiting arc plate and the second limiting arc plate are disposed inside the outer shell and extend out of the outer shell from the inner ring of the outer shell. An adjustment knob is connected to the ends of the first and second limiting arc plates. The end of the first limiting arc plate away from the adjustment knob and the end of the second limiting arc plate away from the adjustment knob are both rotatably connected to the outer shell. The first limiting arc plate and the second limiting arc plate are in the first state by rotating the adjustment knob. The main ring body is provided with a locking rubber ring, which is located on the partition ring. The locking rubber ring is located in the first locking area. The first limiting component is assembled into the inner wall of the first locking area by threaded engagement. The first limiting component performs secondary fixation on the anchor rod located inside the locking rubber ring by rotating and squeezing the locking rubber ring.

2. The self-propelled jet grouting anchored sheet pile support structure as described in claim 1, characterized in that, The adjustment knob has an axisymmetric structure and is connected to the adjustment column assembly.

3. The self-propelled jet grouting anchored sheet pile support structure as described in claim 2, characterized in that, The first limiting arc plate includes: A semi-circular plate, wherein a limiting strip is provided on the inner edge of the semi-circular plate, and the limiting strip extends out of the outer shell from an opening provided on the outer shell; The mounting base is provided with a mounting post and a limiting spring. The end of the semicircular plate is fixed to the mounting post. The limiting spring provides a restoring force to the semicircular plate, allowing the first limiting arc plate in the second state to return to the first state.

4. The self-propelled jet grouting anchored sheet pile support structure as described in claim 3, characterized in that, The adjusting column assembly includes: An adjusting column, the end of which is connected to an adjusting knob; A limiting ring is provided inside the adjustment hole, and several sets of limiting buckles provided around the adjustment column are in contact with the inner edge of the limiting ring; under the rotation of the adjustment column assembly, the adjustment knob completes the switching of different states.

5. The self-propelled jet grouting anchored sheet pile support structure as described in claim 4, characterized in that, The inner edge of the limiting ring is provided with four sets of arc-shaped protrusions, which are in contact with the limiting buckle.

6. The self-propelled jet grouting anchored sheet pile support structure as described in claim 5, characterized in that, The adjusting column is provided with a rotating bearing on its periphery, and the adjusting column is assembled into the adjusting hole through the rotating bearing.

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