High-strain simple guide frame device for hollow pipe pile

Abstract

The utility model relates to the technical field of hollow pipe pile detection, in particular to a high-strain simple guide frame device for a hollow pipe pile, which comprises the hollow pipe pile, a guide frame, a center penetrating hammer and a support component, in high-strain detection, after the guide frame is placed into the inner wall of the hollow pipe pile for a certain depth, the guide frame is fixed through the support component, and the hollow pipe pile is fixed through the center penetrating hammer. Then the center penetrating hammer penetrates through the upper end of the guide frame, the guide frame is sleeved with the hollow pipe cavity, the center penetrating hammer is hoisted through hoisting equipment, the center penetrating hammer vertically ascends along the guide frame, the center of the center penetrating hammer coincides with the center of the hollow pipe pile at the moment, and finally the center penetrating hammer is unhooked through the hoisting equipment and an unhooking system of the center penetrating hammer (not shown in the figure). Enabling the piercing hammer to freely fall to knock the top of the hollow pipe pile, and finishing the detection; according to the utility model, the defects of overlarge size and low installation efficiency of the traditional guide frame are effectively solved, and the accuracy of detection data is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of hollow pipe pile detection, in particular to a high-strain simple guide frame device for hollow pipe piles. Background Technique

[0002] Pile foundation engineering is widely used in the fields of architecture, bridges, elevated roads, high-speed rail construction, etc. As a common method for detecting the vertical compressive bearing capacity of single piles and the integrity of pile bodies, high strain has the advantages of low cost, fast detection speed, and strong adaptability to on-site environments. Currently, it is widely used in the fields of architecture, municipal engineering, and transportation engineering. With the continuous rapid development of the national economy, more and more high-span and deep foundation pit projects are facing very complex geological and environmental conditions. Under such complex conditions, the detection of pile foundation engineering also faces great challenges, putting forward higher requirements for the test capabilities of the high-strain method.

[0003] During the high-strain detection of traditional pile foundations, a certain range of working surfaces need to be excavated around the test pile for installing the heavy hammer guide frame to ensure that there is no eccentric force when the heavy hammer strikes the pile top with axial symmetry. However, the traditional guide frame is relatively large in size, and a working surface with a certain width and depth needs to be excavated around the test pile. In some engineering applications, there are situations where the pile spacing of the foundation piles is small and it is difficult to meet the requirements of the working surface of the traditional guide frame. Content of the Utility Model

[0004] The purpose of the utility model is to provide a high-strain simple guide frame device for hollow pipe piles, which solves the problem that traditional pile foundations are not suitable for the situation of small pile spacing of foundation piles during high-strain detection.

[0005] To achieve the above purpose, the utility model provides a high-strain simple guide frame device for hollow pipe piles, including a hollow pipe pile, a guide frame, a through-core hammer, and a support assembly. The hollow pipe pile is hollow inside. The guide frame is connected to the hollow pipe pile and is located inside the hollow pipe pile, and the upper end of the guide frame extends out of the top of the hollow pipe pile. The geometric axis of the through-core hammer has a hollow pipe cavity, and the hollow pipe cavity penetrates through the through-core hammer. The through-core hammer is slidably arranged on the guide frame, and the hollow pipe cavity is sleeved on the guide frame. The support assembly is arranged on the guide frame and fixes the guide frame on the hollow pipe pile.

[0006] Among them, the guide frame includes a support rod and a fixing sleeve. The fixing sleeve is connected to the hollow pipe pile through the support assembly; the support rod is fixedly connected to the fixing sleeve and is slidably connected to the through-core hammer and is located inside the hollow pipe cavity.

[0007] Among them, the support assembly includes a locking support shaft and a tightening screw. The locking support shaft is slidably connected to the fixed sleeve and is located inside the fixed sleeve; the tightening screw is threadedly connected to the fixed sleeve and penetrates the fixed sleeve to abut against the locking support shaft.

[0008] Among them, the support assembly further includes an inner wall clamping plate. The inner wall clamping plate is fixedly connected to the locking support shaft, abuts against the inner wall of the hollow pipe pile, and is located at one end of the locking support shaft.

[0009] For a high-strain simple guiding frame device for a hollow pipe pile of the present utility model, during high-strain detection, after the guiding frame is placed into the inner wall of the hollow pipe pile to a certain depth, the guiding frame is fixed by the support assembly. Then, the through-hammer penetrates through the upper end of the guiding frame, so that the hollow pipe cavity is sleeved on the guiding frame. The through-hammer is lifted by a lifting device, and the through-hammer rises vertically along the guiding frame. At this time, the center of the through-hammer coincides with the center of the hollow pipe pile. Finally, the hook detachment system (not shown in the figure) of the lifting device and the through-hammer is used to make the through-hammer freely fall to strike the top of the hollow pipe pile, and the detection is completed; the present utility model effectively solves the disadvantages of the traditional guiding frame being too large in volume and low in installation efficiency, and at the same time ensures the accuracy of the detection data. Description of the Drawings

[0010] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art.

[0011] Figure 1 is the overall structural schematic diagram of the high-strain simple guiding frame device for a hollow pipe pile of the present utility model.

[0012] Figure 2 is the structural schematic diagram of the support assembly of the present utility model.

[0013] In the figure: 101 - hollow pipe pile, 102 - guiding frame, 103 - through-hammer, 104 - support assembly, 105 - hollow pipe cavity, 106 - support rod, 107 - fixed sleeve, 108 - locking support shaft, 109 - tightening screw, 110 - inner wall clamping plate. Detailed Description of the Embodiments

[0014] The following will describe in detail the embodiments of the present utility model. The examples of the embodiments are shown in the drawings. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present utility model and should not be construed as a limitation to the present utility model.

[0015] Please refer to Figure 1 and Figure 2 wherein Figure 1It is a schematic diagram of the overall structure of a high-strain simple guide frame device for a hollow pipe pile. Figure 2 It is a schematic diagram of the support assembly.

[0016] The utility model provides a high-strain simple guide frame device for a hollow pipe pile, which includes a hollow pipe pile 101, a guide frame 102, a through hammer 103 and a support assembly 104. The guide frame 102 includes a support rod 106 and a fixed sleeve 107. The support assembly 104 includes a locking support shaft 108, a tightening buckle 109 and an inner wall clamping plate 110. The guide frame 102 is arranged inside the hollow pipe pile 101 through the support assembly 104, and the through hammer 103 is made to descend along the guide frame 102 to strike the top of the hollow pipe pile 101, achieving the purpose of reducing the volume of the guide frame 102 and improving the detection accuracy. It can be understood that the foregoing solution can be used not only when improving the detection accuracy, but also when fixing the guide frame 102.

[0017] For this specific embodiment, the inside of the hollow pipe pile 101 is hollow. The guide frame 102 is connected to the hollow pipe pile 101 and is located inside the hollow pipe pile 101, and the upper end of the guide frame 102 extends out of the top of the hollow pipe pile 101. A hollow pipe cavity 105 is provided at the geometric axis of the through hammer 103, and the hollow pipe cavity 105 penetrates the through hammer 103. The through hammer 103 is slidably arranged on the guide frame 102, and the hollow pipe cavity 105 is sleeved on the guide frame 102. The support assembly 104 is arranged on the guide frame 102 and fixes the guide frame 102 on the hollow pipe pile 101; the hollow pipe pile 101 is installed on the ground, the through hammer 103 is cylindrical, and the support assembly 104 can install the guide frame 102 inside the hollow pipe pile 101 and is convenient for disassembly; in high-strain detection, after the guide frame 102 is placed into the inner wall of the hollow pipe pile 101 to a certain depth, the guide frame 102 is fixed through the support assembly 104, and then the through hammer 103 is penetrated through the upper end of the guide frame 102, so that the hollow pipe cavity 105 is sleeved on the guide frame 102. The through hammer 103 is hoisted by a hoisting device, and the through hammer 103 rises vertically along the guide frame 102. At this time, the center of the through hammer 103 coincides with the center of the hollow pipe pile 101. Finally, the hook system (not shown in the figure) of the hoisting device and the through hammer 103 is used to make the through hammer 103 freely fall to strike the top of the hollow pipe pile 101, and the detection is completed; the utility model effectively solves the disadvantages of the traditional guide frame 102 having too large a volume and low installation efficiency, and at the same time ensures the accuracy of the detection data.

[0018] Among them, the fixed sleeve 107 is connected to the hollow pipe pile 101 through the support assembly 104; the support rod 106 is fixedly connected to the fixed sleeve 107, slidably connected to the impact hammer 103, and is located inside the hollow cavity 105; several fixed sleeves 107 are provided and evenly arranged on the support rod 106, guiding the movement of the impact hammer 103 through the support rod 106, and at the same time connecting the fixed sleeve 107 with the support assembly 104, thereby fixing the support rod 106.

[0019] Secondly, the locking support shaft 108 is slidably connected to the fixed sleeve 107 and is located inside the fixed sleeve 107; the tightening screw 109 is threadedly connected to the fixed sleeve 107 and penetrates through the fixed sleeve 107 to abut against the locking support shaft 108.

[0020] At the same time, the inner wall clamping plate 110 is fixedly connected to the locking support shaft 108, abuts against the inner wall of the hollow pipe pile 101, and is located at one end of the locking support shaft 108.

[0021] When fixing the support rod 106, place the support assembly 104 inside the hollow pipe pile 101, then adjust the positions of the locking support shaft 108 and the inner wall clamping plate 110 so that the inner wall clamping plate 110 abuts against the inner wall of the hollow pipe pile 101, and lock the locking support shaft 108 through the tightening screw 109. Finally, repeat the above operation so that multiple inner wall clamping plates 110 are all in close contact with the inner wall of the hollow pipe pile 101 to complete the fixation of the support rod 106; increase the contact area with the hollow pipe pile 101 through the inner wall clamping plate 110, thereby increasing friction and ensuring the stability of the support rod 106.

[0022] When using the high-strain simple guiding frame device for the hollow pipe pile of the present utility model, before detection, first place the guiding frame 102 inside the hollow pipe pile 101, loosen the tightening screw 109 to extend the locking support shaft 108 until the inner wall clamping plate 110 at the end of the locking support shaft 108 abuts tightly against the inner wall of the hollow pipe pile 101; then use a lifting device to lift the impact hammer 103 so that the hollow cavity 105 passes through the upper end of the support rod 106 and aligns with the hollow pipe pile 101; finally, use the hook release system of the lifting device and the impact hammer 103 to release the hook of the impact hammer 103. At this time, the impact hammer 103 falls freely and strikes the top of the hollow pipe pile 101, and the detection is completed.

[0023] The present utility model has the following beneficial effects:

[0024] 1. The simple guide frame reduces the volume of the guide frame by embedding the lower part of the locking device into the inner wall of the hollow pipe pile and using a through-hammer at the upper part, improving the on-site adaptability of the detection method.

[0025] 2. The simple guide frame is convenient and fast in the installation and disassembly process, improving the efficiency of the detection work.

[0026] The above-disclosed are only one or more preferred embodiments of the present application, and the scope of rights of the present application cannot be limited thereby. Those of ordinary skill in the art can understand all or part of the processes of realizing the above embodiments, and the equivalent changes made according to the claims of the present application still fall within the scope covered by the present application.

Claims

1. A high-strain simple guide frame device for a hollow pipe pile, characterized in that it includes a hollow pipe pile, a guide frame, a through hammer and a support assembly. The hollow pipe pile is hollow inside. The guide frame is connected to the hollow pipe pile and is located inside the hollow pipe pile, and the upper end of the guide frame extends out of the top of the hollow pipe pile. A hollow pipe cavity is provided at the geometric axis of the through hammer, and the hollow pipe cavity penetrates through the through hammer. The through hammer is slidably arranged on the guide frame, the hollow pipe cavity is sleeved on the guide frame, and the support assembly is arranged on the guide frame and fixes the guide frame on the hollow pipe pile.

2. The high-strain simple guide frame device for a hollow pipe pile according to claim 1, characterized in that the guide frame includes a support rod and a fixing sleeve. The fixing sleeve is connected to the hollow pipe pile through the support assembly; the support rod is fixedly connected to the fixing sleeve, is slidably connected to the through hammer, and is located inside the hollow pipe cavity.

3. The high-strain simple guide frame device for a hollow pipe pile according to claim 2, characterized in that the support assembly includes a locking support shaft and a tightening screw. The locking support shaft is slidably connected to the fixing sleeve and is located inside the fixing sleeve; the tightening screw is threadedly connected to the fixing sleeve and penetrates through the fixing sleeve to abut against the locking support shaft.

4. The high-strain simple guide frame device for a hollow pipe pile according to claim 3, characterized in that the support assembly further includes an inner wall clamping plate. The inner wall clamping plate is fixedly connected to the locking support shaft, abuts against the inner wall of the hollow pipe pile, and is located at one end of the locking support shaft.

Images