A fine-tuning anchor and method capable of compensating for prestress loss in water-rich sand layers

A water-rich sand layer and prestressing technology, which is applied to the installation of bolts, earthwork drilling, drilling automatic control systems, etc., can solve problems such as subsidence and soil extrusion, and achieve the effect of reducing the possibility

Inactive Publication Date: 2022-03-15
SUBWAY ENG CO LTD OF CHINA RAILWAY 16TH CONSTR BUREAU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a fine-tuning anchor and method capable of compensating for the loss of prestress in the water-rich sand layer, which has the advantages of adjusting the angle of the anchor at all times during construction to adapt to the prestress and reduce the possibility of soil subsidence. Solved the problem that the change of prestress may cause the soil layer to be partially squeezed and collapse

Method used

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  • A fine-tuning anchor and method capable of compensating for prestress loss in water-rich sand layers
  • A fine-tuning anchor and method capable of compensating for prestress loss in water-rich sand layers
  • A fine-tuning anchor and method capable of compensating for prestress loss in water-rich sand layers

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Effect test

Embodiment 1

[0028] See figure 1 One embodiment of the present invention: a fine-tuning anchor capable of compensating the prestress loss of the rich sand layer, including the bottom plate 1, the control cabinet 8, the rack 11, the connecting plate 13 and the third connecting rod 24, the bottom plate 1 The upper surface is fixed with a tank 2, and the hydraulic oil is loaded in the tank 2. The upper surface of the bottom plate 1 on one side of the tank 2 is fixed, as is well known to those skilled in the art, and the hydraulic pump 4 power is present, and it is a conventional means or known common sense, and will not be described later in the art. Personnel can make any optional or convenient. The upper surface of the upper surface of the hydraulic pump 4 is fixed to the upper surface of the hydraulic cylinder 5, and the plurality of hydraulic rod 22 is attached to the top end of the hydraulic cylinder 5, and the top end of the multi-stage hydraulic rod 22 is rotated at one end of the third co...

Embodiment 2

[0030] See figure 1 , Figure 4 and Figure 5One embodiment of the present invention is: a fine-tuning anchor capable of compensating for the prestress loss of the rich sand layer, the liquid pressure pump 4 is in communication with the tank 3, and the hydraulic pump 4 is passed through the tubing 3 Connect with the hydraulic cylinder 5, the hydraulic pump 4 transmits the hydraulic oil in the tank 2 through the tubing 3 to the hydraulic cylinder 5, and the hydraulic cylinder 5 pushes the multi-stage hydraulic rod 22 by the hydraulic oil. The hydraulic pump 4 causes the hydraulic oil in the hydraulic cylinder 5 in the hydraulic cylinder 5 to drive the multi-stage hydraulic rod 22 downward by the oil pipe 3. The front and rear ends of the other side of the rack 11 are fixed, and the first connecting rod 17 is fixed, and the bottom end of the two first connecting rods 17 is rotated by the first axis 18, and two seconds. The connecting rod 19 is fixed to the front and rear ends of the b...

Embodiment 3

[0032] See figure 2 and image 3 One embodiment of the present invention is provided that a thin-tuning anchor capable of compensating for the prestress loss of the rich sand layer, and a screw 20 is fixed in the middle of the groove on the upper surface of the frame 11, and the rack 11 of the lead screw 20 The surface is fixed having a stepper motor 21, and the step motor 21 is rotatable with the screw 20, and the intermediate of the lower surface of the connecting plate 13 is attached to the lead screw 20, and the upper surface of the connecting plate 13 is fixed to the motor 14, the motor 14 One end is rotated by the drive shaft 15 with an anchor 16. The stepper motor 21 is powered on, and the motor 14 on the connecting plate 13 is moved by the screw 20, and the anchor 16 of the motor 14 is moved to the soil layer. The lead screw 20 can drive the connecting plate 13 to reciprocate.

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Abstract

The invention discloses a fine-tuning anchorage and method capable of compensating for the loss of prestress in a water-rich sand layer, including a base plate, a control cabinet, a frame, a connecting plate and a third connecting rod. The top of the hydraulic cylinder is movably mounted with a multi-stage hydraulic rod, the top of the multi-stage hydraulic rod is rotationally connected to one end of the third connecting rod through the second rotating shaft, and the other end of the third connecting rod is connected to the bottom of the frame through the second rotating shaft. The shaft seat fixed on one side of the end is rotatably connected, a lead screw is fixed in the middle of the groove on the upper surface of the frame, a stepping motor is fixed on the upper surface of the frame at one end of the lead screw, and the stepping motor and the lead screw in the lead screw The rod is connected by rotation, the middle of the lower surface of the connecting plate is movably connected with the lead screw, the upper surface of the connecting plate is fixed with a motor, and one end of the motor is rotated and installed with an anchor through a transmission shaft. The invention has the advantages of adjusting the angle of the anchorage all the time during the construction to adapt to the prestress and reducing the possibility of soil layer collapse.

Description

Technical field [0001] The present invention relates to the field of construction technology in the rich sand layer, in particular a fine-tuning anchor and method capable of compensating the prestressed loss of the rich sand layer. Background technique [0002] With the acceleration of urbanization, the city can use space has become an obstacle to the development of urban development, and the use of urban development and urban underground space is one of the solutions. The construction of the subway and various integrated gallery effectively solves the difficulties of urban population flow and the imperfect various municipal services. [0003] The rich sand layer is characterized by large sand containing sand, non-sand, and pebble content less than 10%, rich in groundwater. This formation has a characteristic in the case where the local space is leaked, and the formation flow is large, and it is easy to cause a wide range of formation disturbances. At the same time, the soil laye...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D20/00E21B15/00E21B19/081E21B7/04E21B15/04E21B44/00E21B49/00
CPCE21D20/003E21B15/003E21B19/081E21B7/04E21B15/04E21B15/045E21B44/00E21B49/00
Inventor 毛文龙周凯
Owner SUBWAY ENG CO LTD OF CHINA RAILWAY 16TH CONSTR BUREAU
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