阅读说明：本技术 一种桩位可调节的模型桩免拆卸固定装置 (Model pile dismounting-free fixing device with adjustable pile position ) 是由 徐志军 王政权 江豪杰 梁鹏飞 王云泰 赵世鹏 于 2021-07-04 设计创作，主要内容包括：一种桩位可调节的模型桩免拆卸固定装置,主要包括竖直、水平方向伸缩杆和模型桩固定构件。在试验过程中通过调整伸缩杆的长度调节桩的竖直、水平位置,并利用固定构件固定桩的位置,保证桩的稳定性,有效避免了桩的自重沉降、斜向偏移等问题,降低了试验的误差。试验结束后通过水平和竖直伸缩杆间的凹槽螺栓,可调节水平伸缩杆的角度,可抬起水平伸缩杆,在免拆卸的条件下提供足够的工作空间。(A model pile disassembly-free fixing device with adjustable pile positions mainly comprises vertical and horizontal telescopic rods and a model pile fixing component. Vertical, horizontal position through the length adjustment stake of adjustment telescopic link in the test process to utilize the position of fixed component spud pile, guarantee the stability of stake, effectively avoided the dead weight of stake subside, slant skew scheduling problem, reduced experimental error. After the test is finished, the angle of the horizontal telescopic rod can be adjusted through the groove bolt between the horizontal telescopic rod and the vertical telescopic rod, the horizontal telescopic rod can be lifted, and sufficient working space is provided under the disassembly-free condition.)

1. A pile position adjustable model pile disassembly-free fixing device is composed of a movable chuck (1), a stud bolt (2), two telescopic rods (3), two fastening bolts (4), a groove (5), a groove bolt (6), a cantilever connecting component (7), a model pile fixing component (8), a locking knob (9) and a fixing band (10), and is characterized in that the device comprises a vertical telescopic rod (3), a horizontal telescopic rod (3), a groove (5), a cantilever connecting component (7) and a model pile fixing component (8); the bottom end of the groove (5) is welded with the vertical telescopic rod (3), the center of the groove is connected with the cantilever connecting component (7) through a groove bolt (6), the left end of the horizontal telescopic rod (3) is connected with the cantilever connecting component (7) through a stud bolt (2), and the other end of the horizontal telescopic rod is welded with the model pile fixing component; the length of the telescopic rod is adjusted by adjusting the fastening knob (4) so as to control the position of the model pile.

2. The model pile disassembly-free fixing device with the adjustable pile position as claimed in claim 1, wherein the angle of the cantilever connecting member (7) is adjusted by adjusting the groove bolt (2) to meet the requirement that the horizontal telescopic rod (3) rotates 180 degrees in the horizontal direction.

Technical Field

The invention mainly relates to a model pile disassembly-free fixing device with adjustable pile positions, in particular to a geotechnical engineering foundation pile model test.

Background

The pile foundation is the most important deep foundation form at present, and the dead weight and the upper load are born by utilizing the side friction resistance and the end resistance of the pile. The multifunctional settling tank has the advantages of multiple functions, high bearing capacity, low settling rate, small settling volume, suitability for mechanized construction, small construction vibration and the like, and is widely applied to actual construction projects such as high-rise buildings, bridges, port wharfs and the like. With the increase of application of pile foundations, the research on the bearing performance and the stability of the pile foundations becomes more important. Due to the influence of various factors such as complex and variable geological conditions, pile-soil interaction and the like in different regions, the bearing performance of the foundation pile cannot be accurately estimated through theoretical calculation, and test verification and correction are often required to be combined. The model test is the main means for verifying theoretical analysis and numerical simulation. However, for model piles, the problems of dead weight settlement, oblique deviation, soil body disturbance and the like often occur in the test process, so that the defects of inconsistent positions of the model piles, large error of test results and the like are caused. In order to determine the position stability of the model pile and ensure the accuracy of test data, the invention provides a model pile disassembly-free fixing device with adjustable pile positions.

Disclosure of Invention

In order to solve the problems that the model pile has dead weight settlement, oblique deviation and soil body disturbance in the test process, the height and the horizontal position of the model pile cannot be accurately fixed and the like, the invention provides the model pile non-dismounting fixing device with the adjustable pile position, which is fixed at the top of the side wall of a model groove. In the test process, the position of the model pile is fixed by the device, the sedimentation caused by the dead weight of the pile is avoided, and the axis deviation of the pile body is prevented, so that the disturbance of the model pile to the soil body under the action of external force is reduced, and the stability of the test soil body and the position of the pile body is better ensured.

The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a model pile exempts from to dismantle fixing device with adjustable stake position, mainly comprises vertical telescopic link and horizontal telescopic link, and vertical telescopic link bottom department has a movable chuck for fix whole support in model groove one side. The length of the telescopic rod and the position of the pile body can be adjusted by adjusting the telescopic rod fastening type knob. A groove is welded at the top of the vertical telescopic rod and used for connecting a connecting component of the horizontal telescopic rod. The bottom of the connecting member is connected with the cantilever connecting member by a stud bolt.

The telescopic rod in the vertical direction is connected with the movable chuck through the stud bolt. The groove between the vertical telescopic rod and the horizontal telescopic rod is fixed with the cantilever connecting member by a groove bolt. The tail part of the cantilever connecting component is connected with a telescopic rod in the horizontal direction by a stud bolt. The groove bolt is adjusted to enable the horizontal telescopic rod to rotate 180 degrees in the horizontal direction.

Above-mentioned telescopic link, the material chooses for use the aluminum alloy, and the flexible festival number is two, and the hasp mode adopts bolt-up formula. The model pile fixing component welded at the top of the horizontal telescopic rod consists of a locking knob and a fixing band, and the length of the fixing band can be controlled through the locking knob to control the pile diameter required to be fixed to fix the model pile.

The invention has the beneficial effects that: the problems of dead weight settlement, oblique deviation, soil body disturbance and the like caused by the model pile in the test process are avoided. And determining the fixed position of the model pile by adjusting the vertical height and the horizontal height of the telescopic rod. After the model piles are fixed in position, the model piles do not need to be disassembled, and only the fixing components need to be adjusted to complete indoor tests of different model piles. Therefore, the model pile fixing device is installed in the model test process, the model pile can be effectively fixed, and the stability of the whole model test is enhanced.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a schematic view of a model pile fixing member according to the present invention;

in the attached drawing, 1 is a movable chuck, 2 is a stud bolt, 3 is a telescopic rod, 4 is a fastening bolt, 5 is a groove, 6 is a groove bolt, 7 is a cantilever connecting component, 8 is a model pile fixing component, 9 is a locking knob, and 10 is a fixing band.

Detailed Description

[ examples ] A method for producing a compound

The movable chuck 1 is fixed on one side of the model groove, and the fastening bolt 4 is adjusted to adjust the vertical height and the horizontal position of the telescopic rod and fix the telescopic rod. The groove bolt 6 is unscrewed to adjust the angle of the horizontal telescopic rod and then fixed, and the locking knob 9 is twisted to control the length of the fixing band 10 to meet the requirements of prefabricated model piles with different diameters and fix the prefabricated model piles. When filling soil, the whole device is fixed on one side of the model groove, so that the test has enough operation space, and after the adjustment is completed, the position of the pile body can be fixed all the time. After the completion of the filling, the locking knob 9 and the groove bolt 6 can be unscrewed, the model pile is loosened and the horizontal telescopic rod is raised. The disassembly is avoided, and meanwhile, enough space is reserved for the later loading test. And after the length of the telescopic rod is adjusted once, model piles of different models are tested, and only the model pile fixing component 8 needs to be adjusted, so that the test steps are simplified, and the test height can be guaranteed to be consistent every time. The mode can adjust height and horizontal position, can be accurate adjust model pile to central point and fixed. The problems of dead weight settlement, oblique deviation, soil body disturbance and the like of the pile body in the soil filling process are prevented, the test error is reduced, and the test stability is enhanced.