Soft soil area cast-in-situ bored pile construction control system

Abstract

The utility model belongs to the technical field of cast-in-situ bored pile construction, and discloses a soft soil area cast-in-situ bored pile construction control system which comprises an extraction assembly, a movable driving piece and a vibration sensor, the extraction assembly comprises an extraction pump, the input end of the extraction pump is connected with an extraction pipe, the extraction pipe can stretch into a drill hole, and the vibration sensor is connected with the movable driving piece. The draw-off pump is configured to draw off slurry in the drill hole; the output end of the movable driving piece is connected with the extraction pipe, and the movable driving piece is configured to drive the extraction pipe to move horizontally in the drill hole; the vibration sensor is arranged on the outer wall of the extraction pipe so that the vibration frequency of the extraction pipe can be monitored. In the extraction process, information such as the content and the size of large sediment particles in a drill hole can be measured on the basis that a probe is not put down, and measurement is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of bored cast-in-place pile construction, in particular to a bored cast-in-place pile construction control system in soft soil areas. Background Art

[0002] At present, bored piles are widely used in various building foundation projects. During bored pile construction in soft soil areas, a large number of large sediment particles, such as pebbles, will gather in the borehole. It is necessary to extract the large sediment particles through the mud pipe to effectively control the sediment particles and ensure the construction quality.

[0003] In the prior art, during the extraction of larger sediment particles, it is necessary to understand data information such as the content and size of the larger sediment particles in the borehole to determine the extraction progress. Currently, additional means are often used to detect the content and size of sediment particles, such as by sinking a probe or by sampling. Both of the above methods require lowering the probe or sampling container into the borehole, and the measurement method is relatively complicated. Utility Model Content

[0004] The utility model aims to provide a bored pile construction control system in soft soil areas, which can measure the content, size and other information of larger sediment particles in the borehole without lowering probes during extraction, making the measurement more convenient.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] The control system for bored pile construction in soft soil areas includes:

[0007] An extraction component, the extraction component comprising an extraction pump, an input end of the extraction pump is connected to an extraction pipe, the extraction pipe can extend into the borehole, and the extraction pump is configured to extract mud in the borehole;

[0008] A mobile driving member, wherein an output end of the mobile driving member is connected to the extraction tube, and the mobile driving member is configured to drive the extraction tube to translate in the borehole;

[0009] A vibration sensor is disposed on the outer wall of the extraction pipe so as to monitor the vibration frequency of the extraction pipe.

[0010] In some embodiments, the extraction pipe includes a hard pipe section and a soft pipe section, the soft pipe section connects the hard pipe section and the extraction pump, at least the hard pipe section is placed in the borehole, and the vibration sensor is placed on the hard pipe section.

[0011] In some embodiments, the mobile drive member is a lifting device.

[0012] In some embodiments, an injection assembly is also included, and the injection assembly includes an injection pump and a grouting pipe. The output end of the injection pump is connected to one end of the grouting pipe, and the other end of the grouting pipe extends into the borehole.

[0013] In some embodiments, an injection port is provided on the side wall of one end of the extraction pipe close to the bottom of the borehole, and the grouting pipe is sealed and penetrated into the extraction pipe to connect to the injection port.

[0014] In some embodiments, a plurality of injection ports are provided, and the plurality of injection ports are evenly distributed along the circumference of the outer wall of the extraction pipe, and a plurality of grouting pipes are connected to the injection ports in a one-to-one correspondence.

[0015] In some embodiments, a mud detection assembly is further included. The mud detection assembly includes a mud barrel. The mud barrel is connected to the output end of the extraction pump through a transfer pipe. A rotational viscometer is disposed in the mud barrel.

[0016] In some embodiments, a first discharge pipe is provided at the output end of the extraction pump, one end of the transfer pipe is connected to the side wall of the first discharge pipe through a first switch valve, and the other end of the transfer pipe is connected to the mud barrel.

[0017] In some embodiments, the mud barrel is provided with a second discharge pipe, and a second switch valve is provided on the second discharge pipe.

[0018] In some embodiments, a control component is also included, which is communicatively connected to the controller of the extraction pump, the controller of the mobile drive component, the controller of the injection pump, the controller of the rotational viscometer, the controller of the first switch valve, and the controller of the second switch valve.

[0019] Beneficial effects of the utility model:

[0020] In the process of extracting mud in the borehole by means of an extraction pump and an extraction pipe, the extraction pipe can be driven to translate in the borehole by a mobile driving member. When the extraction pipe moves in the borehole, it will touch and impact large particles precipitated in the borehole, thereby causing the extraction pipe to vibrate. The vibration sensor on the extraction pipe can monitor the above vibration, and the construction operator can determine the number and size of large particles in the borehole based on vibration signals such as the frequency and amplitude of the vibration. Therefore, in the process of extracting precipitated particles, measurement and judgment can be performed without operating the probe or the like, making the measurement more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the construction control system of bored piles in soft soil areas of the utility model;

[0022] Figure 2 It is a schematic diagram showing the injection port of the hard pipe section in the utility model.

[0023] In the figure:

[0024] 1. Extraction assembly; 11. Extraction pump; 12. Extraction pipe; 121. Hard pipe section; 122. Flexible pipe section; 123. Injection port; 13. First discharge pipe;

[0025] 2. Mobile drive parts;

[0026] 3. Vibration sensor;

[0027] 4. injection assembly; 41. injection pump; 42. grouting pipe;

[0028] 5. Mud detection assembly; 51. Mud cylinder; 52. Transfer pipe; 53. Rotational viscometer; 54. Second discharge pipe; 55. First switch valve; 56. Second switch valve;

[0029] 6. Control parts; 7. Slurry making tank; 8. Water injection assembly; 9. Bentonite injection assembly; 10. Collection tank. DETAILED DESCRIPTION

[0030] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0031] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0033] In the description of this embodiment, the terms "upper", "lower", "left", "right", etc., and the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of description and simplified operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0034] like Figure 1 and Figure 2 As shown, the utility model provides a control system for bored pile construction in soft soil areas, which includes an extraction component 1, a mobile driving component 2 and a vibration sensor 3. The extraction component 1 includes an extraction pump 11, the input end of the extraction pump 11 is connected to an extraction pipe 12, the extraction pipe 12 can be extended into the borehole, and the extraction pump 11 is configured to extract mud in the borehole; the output end of the mobile driving component 2 is connected to the extraction pipe 12, and the mobile driving component 2 is configured to drive the extraction pipe 12 to translate in the borehole; the vibration sensor 3 is arranged on the outer wall of the extraction pipe 12 to monitor the vibration frequency of the extraction pipe 12.

[0035] In the process of extracting mud in the borehole by means of the extraction pump 11 and the extraction pipe 12, the mobile driving member 2 can be used to drive the extraction pipe 12 to translate in the borehole. When the extraction pipe 12 moves in the borehole, it will touch and impact the sedimentation particles in the borehole, thereby causing the extraction pipe 12 to vibrate. Then, the vibration sensor 3 located on the extraction pipe 12 can monitor the above vibration. The construction operator can determine the number, size and other information of the sedimentation particles in the borehole based on the vibration signals such as the frequency and amplitude of the vibration. Therefore, in the process of extracting the sedimentation particles, the measurement and judgment can be carried out without operating the probe or the like, making the measurement more convenient.

[0036] Exemplarily, the mobile driving member 2 is a lifting device. Of course, other similar winches that can be moved horizontally may also be used in other embodiments.

[0037] like Figure 1As shown, in some embodiments, the extraction pipe 12 includes a hard pipe section 121 and a soft pipe section 122 connected between the hard pipe section 121 and the extraction pump 11; for example, the hard pipe section 121 can be a steel pipe or a hard plastic pipe, and the soft pipe section 122 can be a leather pipe or a rubber pipe, etc.; the two can be connected by threads. At least the hard pipe section 121 is placed in the borehole, and the vibration sensor 3 is placed in the hard pipe section 121, that is, the hard pipe section 121 is in contact with the sediment particles in the borehole, so as to transmit vibration information as clearly as possible.

[0038] In some embodiments, when there are continuous precipitation particles that cannot be extracted by the extraction pipe 12, the consistency of the mud in the borehole can be changed, that is, the consistency of the mud in the borehole can be increased, so that the effect of carrying the precipitation particles is stronger. Based on the above principle, the construction control system of bored piles in soft soil areas also includes an injection component 4, so that new mud can be added to the borehole to improve the consistency of the mud in the borehole. Specifically, the injection component 4 includes an injection pump 41 and a grouting pipe 42, the output end of the injection pump 41 is connected to one end of the grouting pipe 42, and the other end of the grouting pipe 42 extends into the borehole. Of course, it can be understood that the input end of the injection pump 41 is connected to the pulping pool 7, and the pulping pool 7 is a prior art, which will not be described in detail. Wherein the pulping pool 7 is equipped with a water injection component 8 and a bentonite injection component 9, so that the pulping pool 7 can be provided with raw materials, both of which are prior art, and the structure will not be described.

[0039] like Figure 1 and Figure 2 As shown, further, the side wall of the extraction pipe 12 near the bottom of the borehole is provided with an injection port 123, and the grouting pipe 42 is sealed and penetrated into the extraction pipe 12 to connect the injection port 123, that is, the grouting pipe 42 is arranged from the extraction pipe 12, so as to avoid being arranged outside the grouting pipe 42, and to avoid interference between the two. Exemplarily, the grouting pipe 42 is a hose, so as to reduce the vibration between the extraction pipe 12, and in the process of the movement of the extraction pipe 12, the grouting pipe 42 using a hose can also reserve a moving space. Furthermore, in order to increase the progress of grouting, both the injection port 123 and the grouting pipe 42 can be set in multiple, and the multiple injection ports 123 are evenly distributed along the circumference of the outer wall of the extraction pipe 12, and the multiple grouting pipes 42 correspond to the injection port 123 one by one. It is understandable that the diameter of the grouting pipe 42 is much smaller than the diameter of the extraction pipe 12 , so that when multiple grouting pipes 42 extend into the extraction pipe 12 , space needs to be reserved for the mud and sediment particles flowing in the extraction pipe 12 .

[0040] like Figure 1As shown, in order to monitor the viscosity of the mud extracted from the extraction pipe 12, the bored pile construction control system in soft soil areas also includes a mud detection component 5. The mud detection component 5 includes a mud barrel 51. The mud barrel 51 is connected to the output end of the extraction pump 11 through a transfer pipe 52, so that the mud can be obtained from the output end of the extraction pump 11 into the mud barrel 51. A rotational viscometer 53 is arranged in the mud barrel 51, so that the viscosity of the mud coming out of the borehole is detected by the rotational viscometer 53, thereby providing a basis for controlling the viscosity of the mud in the slurry pool 7. Furthermore, since the output of the extraction pump 11 is relatively large, a large amount of mud is not required to detect the mud viscosity. Based on this, a first discharge pipe 13 is provided at the output end of the extraction pump 11, and the first discharge pipe 13 is connected to the collection tank 10. One end of the transfer pipe 52 is connected to the side wall of the first discharge pipe 13 through the first switch valve 55, and the other end of the transfer pipe 52 is connected to the mud barrel 51. That is to say, in the process of the first discharge pipe 13 discharging mud to the collection tank 10, the first switch valve 55 is opened to allow part of the mud to enter the mud barrel 51. After the mud for detection is taken, it is only necessary to close the first switch valve 55. The above structure does not affect the normal discharge of mud into the collection tank 10. Exemplarily, the first switch valve 55 is an electric valve for easy electric control.

[0041] Furthermore, the mud tube 51 is provided with a second discharge pipe 54, which is connected to the above-mentioned collection tank 10, so that after the viscosity detection of the mud is completed, the mud in the mud tube 51 can be discharged into the collection tank 10; in the current embodiment, the second discharge pipe 54 is provided with a second switch valve 56 to control the time and progress of the discharge. Exemplarily, the second switch valve 56 is also an electric valve.

[0042] In order to facilitate automatic control, the bored pile construction control system in soft soil areas also includes a control component 6, which is respectively connected to the controller of the extraction pump 11, the controller of the mobile drive component 2, the controller of the injection pump 41, the controller of the rotational viscometer 53, the controller of the first switch valve 55, the controller of the second switch valve 56, the water injection component 8 and the bentonite injection component 9, so as to automatically control each process and improve work efficiency. Exemplarily, the control component 6 adopts STM32. Other embodiments may also use control components such as PLC.

[0043] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. The construction control system of bored piles in soft soil areas is characterized by: include: An extraction component (1), the extraction component (1) comprising an extraction pump (11), an input end of the extraction pump (11) being connected to an extraction pipe (12), the extraction pipe (12) being capable of extending into a borehole, the extraction pump (11) being configured to extract mud in the borehole; A mobile driving member (2), wherein an output end of the mobile driving member (2) is connected to the extraction tube (12), and the mobile driving member (2) is configured to drive the extraction tube (12) to translate in the borehole; A vibration sensor (3), wherein the vibration sensor (3) is arranged on the outer wall of the extraction pipe (12) so as to be able to monitor the vibration frequency of the extraction pipe (12).

2. The soft soil area bored pile construction control system according to claim 1, characterized in that: The extraction pipe (12) comprises a hard pipe section (121) and a soft pipe section (122); the soft pipe section (122) is connected between the hard pipe section (121) and the extraction pump (11); at least the hard pipe section (121) is placed in the borehole; and the vibration sensor (3) is placed in the hard pipe section (121).

3. The soft soil area bored pile construction control system according to claim 1, characterized in that: The mobile driving member (2) is a lifting device.

4. The soft soil area bored pile construction control system according to any one of claims 1 to 3, characterized in that: It also includes an injection assembly (4), the injection assembly (4) including an injection pump (41) and a grouting pipe (42), the output end of the injection pump (41) is connected to one end of the grouting pipe (42), and the other end of the grouting pipe (42) extends into the borehole.

5. The soft soil area bored pile construction control system according to claim 4, characterized in that: An injection port (123) is provided on the side wall of one end of the extraction pipe (12) close to the bottom of the borehole, and the grouting pipe (42) is sealed and penetrated into the extraction pipe (12) to connect to the injection port (123).

6. The soft soil area bored pile construction control system according to claim 5, characterized in that: A plurality of injection ports (123) are provided, and the plurality of injection ports (123) are evenly distributed along the circumference of the outer wall of the extraction pipe (12), and the plurality of grouting pipes (42) are connected to the injection ports (123) in a one-to-one correspondence.

7. The soft soil area bored pile construction control system according to claim 4, characterized in that: The invention also comprises a mud detection assembly (5), wherein the mud detection assembly (5) comprises a mud barrel (51), wherein the mud barrel (51) is connected to the output end of the extraction pump (11) via a transfer pipe (52), and a rotational viscometer (53) is arranged in the mud barrel (51).

8. The soft soil area bored pile construction control system according to claim 7, characterized in that: The output end of the extraction pump (11) is provided with a first discharge pipe (13), one end of the transfer pipe (52) is connected to the side wall of the first discharge pipe (13) via a first switch valve (55), and the other end of the transfer pipe (52) is connected to the mud barrel (51).

9. The soft soil area bored pile construction control system according to claim 8, characterized in that: The mud tube (51) is provided with a second discharge pipe (54), and the second discharge pipe (54) is provided with a second switch valve (56).

10. The soft soil area bored pile construction control system according to claim 9, characterized in that: It also includes a control component (6), which is communicatively connected to a controller of the extraction pump (11), a controller of the mobile drive component (2), a controller of the injection pump (41), a controller of the rotational viscometer (53), a controller of the first switch valve (55), and a controller of the second switch valve (56).

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