Device and method for detecting thickness of sediment at pile bottom of mud wall protection punching pile
By using sensors and induction height strain gauge in the mud wall-proof pile bottom sediment detection device, combined with iron cone and fine steel wire structure, the problem of difficulty in entering the sediment area is solved, and accurate detection of sediment thickness and data are achieved. Scientific processing and guidance on site construction and design.
Patent Information
- Application Number
- CN202411377295.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-01-03
AI Technical Summary
In the prior art, in the detection of sediment thickness of mud wall-guarding pile bottom, the probe is difficult to enter the sediment area, and there is a problem of inclination or inability to collect effective data, resulting in inaccurate detection.
A detection device including a sensor and an inductive height strain gauge is designed. Through a structure of a sensor and an iron cone arranged between the counting rod, the sinking speed is controlled using automatic inductive height and fine steel wire to ensure that the sensor accurately reads the sediment thickness. , and obtain the final thickness by calculating the average value of the counting rods on both sides.
It achieves convenient operation, simple equipment, accurate detection data, ensures that the collected data is true and effective, and can effectively guide on-site construction and design.
Smart Images
Figure CN119245580A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of foundation detection, and in particular to a device and method for detecting the thickness of sediment at the bottom of a mud wall punching pile. Background Art
[0002] At present, the apparent resistivity method is mainly used in China to detect sediment thickness. The probe is manually thrown into the mud wall hole at a rapid speed. The probe penetrates into the sediment area and the sediment thickness is determined based on the apparent resistivity of the sediment identified by the probe. However, during the actual operation on site, it cannot be ensured that the probe can enter the sediment area, and there are practical problems such as probe tilt or inability to collect valid data. The detection of sediment thickness at the bottom of mud wall bored piles has always been a difficult problem that needs to be solved urgently in China. Summary of the invention
[0003] The purpose of the present invention is to provide a device and method for detecting the thickness of sediment at the bottom of a mud wall bored pile in response to the above-mentioned problems. By setting the automatic sensing height, the sensor accurately reads the sediment thickness. The operation is convenient, the equipment is simple and easy to manufacture, and the detection data is accurate.
[0004] The technical solution of the present invention is as follows:
[0005] A device for detecting sediment thickness at the bottom of a mud-walled bored pile comprises a sensor and a height sensing strain gauge, wherein the sensor is arranged between at least two counting rods, and the height sensing strain gauge is arranged on the counting rod to sense the sensor height; an iron cone is arranged at the bottom of the counting rod, an iron disc is fixedly connected to the top of the counting rod, a lifting rod is fixedly arranged on the iron disc, and a handle is arranged on the top of the lifting rod; the handle is connected to a tripod at the top of the pile through a thin steel wire; the sensor is connected to a control computer through a transmission cable to transmit height data to the control computer.
[0006] Furthermore, a groove in which the sensor can move up and down is arranged between the at least two counting rods; and height sensing strain gauges are arranged on the sides of the counting rods.
[0007] Furthermore, a vertical connecting piece is provided on the top of the counting rod, and the counting rod is fixedly connected to the iron disc through the vertical connecting piece.
[0008] Furthermore, the specific gravity of the sensor is greater than the specific gravity of water and less than the specific gravity of mud, and the specific gravity of the sensor is between 1.05 and 1.3.
[0009] Furthermore, the diameter of the iron disc is 30 cm and the thickness is 5 cm.
[0010] Furthermore, the counting rod is a rectangular parallelepiped, and the bottom of the counting rod is 0 mm.
[0011] Furthermore, the iron disc is provided with a cable hole for the transmission cable to pass through.
[0012] Furthermore, one end of the transmission cable is connected to the control computer, and the other end passes through the top of the tripod and through the cable hole on the iron disc to connect to the sensor.
[0013] Furthermore, the control computer is arranged on the ground.
[0014] The present application also includes a method for detecting the thickness of sediment at the bottom of a mud wall punching pile, comprising the following steps:
[0015] Install a tripod at the top of the mud wall bored pile;
[0016] Pass the transmission cable through the cable hole on the iron disc at the top of the tripod to connect to the sensor;
[0017] Then the thin steel wire is passed through the tripod pulley and connected to the handle, and the sinking speed is controlled by controlling the thin steel wire (11) loop on the ground;
[0018] Shake the handle on the tripod and the equipment starts to sink. When the sensor is acted upon by the sediment, the control computer receives the collected numerical height. When the iron cone cannot sink at the bottom of the pile, the sensing height is the average of the maximum values on both sides of the counting rod plus the height of the iron cone, which is the final thickness of the mud wall bored pile sediment.
[0019] Compared with the prior art, the present invention has the following beneficial effects:
[0020] 1. A device and method for detecting the thickness of sediment at the bottom of a mud-walled bored pile. By setting the automatic sensing height, the sensor accurately reads the thickness of the sediment. The operation is convenient, the equipment is simple and easy to make, and the detection data is accurate.
[0021] 2. A device and method for detecting the thickness of sediment at the bottom of a mud-walled bored pile. By setting an iron disc, the iron cone can be efficiently and vertically penetrated into the sediment, ensuring that the collected data is true and valid. The proposed data processing method is scientific and practical, and ultimately achieves the goal of guiding on-site pile bottom sediment detection. The detection data can effectively guide on-site construction and provide a basis for design;
[0022] 3. A device and method for detecting the thickness of sediment at the bottom of a mud-walled bored pile. In order to solve practical problems such as probe tilt or inability to collect valid data, counting rods on both sides are used to detect the sensor height, and the average value is calculated to obtain the sediment thickness. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 The present invention is a structural schematic diagram of a device for detecting the thickness of sediment at the bottom of a mud-wall bored pile.
[0024] Figure 2 The present invention is a schematic diagram of the counting rod structure of a device for detecting the thickness of sediment at the bottom of a mud-wall bored pile.
[0025] Figure 3 The present invention is a schematic diagram of the iron disc structure of a device for detecting the thickness of sediment at the bottom of a mud-wall bored pile.
[0026] Figure numerals: 1-control computer, 2-transmission cable, 3-tripod, 4-lifting rod, 5-handle, 6-iron disc, 7-counting rod, 8-sensing height strain gauge, 9-sensor, 10-iron cone, 11-thin steel wire, 12-vertical connector, 13-cable hole. DETAILED DESCRIPTION
[0027] It should be noted that relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.
[0028] The features and performance of the present invention are further described in detail below in conjunction with the embodiments.
[0029] See also Figure 1-3 , a device for detecting the thickness of sediment at the bottom of a mud-walled bored pile, such as Figure 1 As shown, it includes a sensor 9 and an inductive height strain gauge 8, wherein the sensor 9 is arranged between at least two counting rods 7, and the inductive height strain gauge 8 is arranged on the counting rod 7 to sense the height of the sensor 9; an iron cone 10 is arranged at the bottom of the counting rod 7, an iron disc 6 is fixedly connected to the top of the counting rod 7, a lifting rod 4 is fixedly arranged on the iron disc 6, and a handle 5 is arranged on the top of the lifting rod 4; the handle 5 is connected to the tripod 3 at the top of the pile through a thin steel wire 11; the sensor 9 is connected to the control computer 1 through a transmission cable 2 to transmit the height data to the control computer 1. By setting the inductive height strain gauge 8, the sensor 9 accurately reads the sediment thickness, the operation is convenient, the equipment is simple and easy to make, and the detection data is accurate.
[0030] The transmission cable 2 is connected to the sensor 9, passes through the iron disc 6, and is connected to the computer through the pulley of the tripod 3. The sensor 9 is set between the counting rods 7. The sensor 9 rises as the sediment at the bottom of the pile is embedded. The counting rod 7 is provided with an inductive height strain gauge 8. The rising sensor 9 contacts the inductive strain gauge 8, automatically identifies the height of the sensor 9, and the inductive height data is transmitted to the computer through the cable.
[0031] By setting up an iron disc, the iron cone can be efficiently and vertically penetrated into the sediment, ensuring that the collected data is true and effective, and the proposed data processing method is scientific and practical, ultimately achieving the goal of guiding on-site pile bottom sediment detection, and the detection data can effectively guide on-site construction and provide a basis for design
[0032] A groove for the sensor 8 to move up and down is provided between at least two counting rods 7; the sides of the counting rods 7 are provided with inductive height strain gauges 8. A vertical connector 12 is provided on the top of the counting rod 7, and the counting rod 7 is fixedly connected to the iron disc 6 through the vertical connector 12. The vertical connector 12 is a vertical steel bar. The counting rod 7 is a rectangular parallelepiped, and the bottom of the counting rod 7 counts 0mm.
[0033] The specific gravity of the sensor 8 is greater than the specific gravity of water and less than the specific gravity of mud, and the specific gravity of the sensor 8 is between 1.05 and 1.3. The diameter of the iron disc 6 is 30 cm and the thickness is 5 cm. The iron disc 6 is provided with a cable hole 13 for the transmission cable 2 to pass through.
[0034] One end of the transmission cable 2 is connected to the control computer 1 , and the other end passes through the top of the tripod 3 and through the cable hole 13 on the iron disc 6 to connect to the sensor 8 .
[0035] The control computer 1 is arranged on the ground.
[0036] The present application also includes a method for detecting the thickness of sediment at the bottom of a mud wall punching pile, comprising the following steps:
[0037] Install a tripod 3 at the top of the mud wall punching pile;
[0038] Pass the transmission cable 2 through the cable hole 13 on the top of the tripod 3 and the iron disc 6 to connect to the sensor 8;
[0039] Then the thin steel wire 11 is connected to the handle 5 through the tripod pulley, and the sinking speed is controlled by controlling the thin steel wire 11 loops on the ground;
[0040] Shake the handle on the tripod 3 and the equipment starts to sink. When the sensor 8 is under the force of the sediment, the control computer 1 receives the collected numerical height. When the iron cone 10 cannot sink at the bottom of the pile, the sensing height is the average of the maximum values on both sides of the counting rod plus the height of the iron cone, which is the final thickness of the mud wall bored pile sediment.
[0041] The above-mentioned embodiments only express the specific implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the protection scope of the present application. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the technical solution concept of the present application, and these all belong to the protection scope of the present application.
Claims
1. A device for detecting the thickness of sediment at the bottom of a mud-walled bored pile, characterized in that: The invention comprises a sensor (9) and a height sensing strain gauge (8), wherein the sensor (9) is arranged between at least two counting rods (7), and the height sensing strain gauge (8) is arranged on the counting rod (7) to sense the height of the sensor (9); an iron cone (10) is arranged at the bottom of the counting rod (7), an iron disc (6) is fixedly connected to the top of the counting rod (7), a lifting rod (4) is fixedly arranged on the iron disc (6), and a handle (5) is arranged on the top of the lifting rod (4); the handle (5) is connected to a tripod (3) at the top of the pile through a thin steel wire (11); the sensor (9) is connected to a control computer (1) through a transmission cable (2) to transmit the height data to the control computer (1).
2. A device for detecting sediment thickness at the bottom of a mud wall bored pile according to claim 1, characterized in that: A groove in which the sensor (8) can move up and down is arranged between the at least two counting rods (7); and a height sensing strain gauge (8) is arranged on the side surface of the counting rod (7).
3. A device for detecting sediment thickness at the bottom of a mud wall bored pile according to claim 1 or 2, characterized in that: A vertical connecting piece (12) is provided on the top of the counting rod (7), and the counting rod (7) is fixedly connected to the iron disc (6) via the vertical connecting piece (12).
4. A device for detecting sediment thickness at the bottom of a mud wall punching pile according to claim 1, characterized in that: The specific gravity of the sensor (8) is greater than the specific gravity of water and less than the specific gravity of mud. The specific gravity of the sensor (8) is between 1.05 and 1.
3.
5. The device for detecting the thickness of sediment at the bottom of a mud-walled bored pile according to claim 1, characterized in that: The iron disc (6) has a diameter of 30 cm and a thickness of 5 cm.
6. A device for detecting sediment thickness at the bottom of a mud wall bored pile according to claim 3, characterized in that: The counting rod (7) is a rectangular parallelepiped, and the bottom of the counting rod (7) is counted as 0 mm.
7. The device for detecting the thickness of sediment at the bottom of a slurry wall bored pile according to claim 1, characterized in that: The iron disc (6) is provided with a cable hole (13) for the transmission cable (2) to pass through.
8. A device for detecting sediment thickness at the bottom of a mud wall bored pile according to claim 7, characterized in that: One end of the transmission cable (2) is connected to the control computer (1), and the other end passes through the top of the tripod (3) and through the cable hole (13) on the iron disc (6) to connect to the sensor (8).
9. The device for detecting sediment thickness at the bottom of a mud wall bored pile according to claim 1, characterized in that: The control computer (1) is arranged on the ground.
10. A method for detecting the thickness of sediment at the bottom of a mud-walled bored pile, characterized in that: The following steps are involved: Install a tripod (3) at the top of the mud wall punching pile; Pass the transmission cable (2) through the cable hole (13) on the top of the tripod (3) and the iron disc (6) to connect the sensor (8); Then, the thin steel wire (11) is connected to the handle (5) through the tripod pulley, and the sinking speed is controlled by controlling the thin steel wire (11) loop on the ground; The upper handle of the tripod (3) is shaken, and the equipment starts to sink. When the sensor (8) is under the force of the sediment, the control computer (1) receives the collected numerical height. When the iron cone (10) cannot sink at the bottom of the pile, the sensing height is the average of the maximum values on both sides of the counting rod plus the height of the iron cone, which is the final thickness of the mud wall bored pile sediment.