CN113585213A - Drill rod probing hole detecting instrument and method - Google Patents

Abstract

The invention discloses a drill rod probing hole detecting instrument, which comprises: a support frame; the adjustable base is arranged on the support frame; the mounting frame is fixed on the adjustable base; the probe tube penetrates through the mounting frame and the adjustable base in a sliding mode, and scales are marked on the probe tube; the metal detection rod can be spirally arranged in the probe tube in a lifting manner; the visual probe is arranged at the lower end of the metal detection rod; the display device is arranged on the mounting rack; the display device is connected with the visual probe and used for receiving, storing and displaying the image information acquired by the visual probe. The drill rod probing hole detector can acquire accurate data and image information of a poor geological layer in a basic bearing layer. In addition, the invention also provides a drill rod probing hole detector and a probing method, which can accurately probe the scale of the poor geological layer in the basic bearing layer.

Description

Drill rod probing hole detecting instrument and method

Technical Field

The invention relates to the technical field of constructional engineering application, in particular to a drill rod detection hole detector and a detection method.

Background

The construction quality of the building foundation and the foundation engineering in the civil engineering industry plays an important role in the safety of the whole building structure, and the key point for determining the construction quality of the foundation and the foundation engineering is to determine whether the foundation bearing layer can meet all design indexes. Therefore, it is important to detect and detect the base support layer. The foundation bearing stratum is influenced by special geological conditions, such as the influence of the most representative unique karst landform of Guizhou, strong development of underground karst caves, cracks, soil caves and broken zones, and the existence of the condition that whether the integrity of the foundation bearing stratum meets the design requirements can cause a plurality of unpredictable bad geological stratum conditions. Therefore, the detection of the basic bearing layer is real and accurate and is all-round. Therefore, in order to ensure construction quality and structure safety, research and development of secondary detection related instruments for the drill rod detection hole of the foundation bearing stratum are very important, and very accurate data are obtained through secondary detection so as to provide decisive data for a poor geological stratum condition processing scheme.

Disclosure of Invention

In view of the above technical problems, the present invention provides a drill rod hole detecting instrument to obtain accurate data and image information of a poor geological formation in a base bearing layer. In addition, the invention also provides a detection method for accurately detecting the scale of the poor geological layer in the basic bearing stratum.

To achieve the above object, according to an aspect of the present invention, there is provided a drill hole detecting instrument, including:

a support frame;

the adjustable base is arranged on the support frame;

the mounting frame is fixed on the adjustable base;

the probe tube penetrates through the mounting frame and the adjustable base in a sliding mode, and scales are marked on the probe tube;

the metal detection rod can be spirally arranged in the probe tube in a lifting manner;

the visual probe is arranged at the lower end of the metal detection rod; and

the display device is arranged on the mounting rack; the display device is connected with the visual probe and used for receiving, storing and displaying the image information acquired by the visual probe.

In an embodiment of the present invention, the adjustable base includes a first tray and a second tray, and a plurality of leveling screws are disposed between the first tray and the second tray.

In an embodiment of the present invention, a plurality of threaded holes are formed in a surface of the first tray facing the second tray, the threaded holes are connected to the leveling screws, and the leveling screws are fixedly connected to the second tray through bearings.

In an embodiment of the present invention, an adjusting handle is disposed on the mounting base, and the adjusting handle is in transmission connection with the probe tube to control the probe tube to ascend and descend.

In an embodiment of the present invention, a handle is further disposed on the mounting frame.

In an embodiment of the present invention, the drill hole probing detector further includes a battery, and the battery is connected to the display device and detachably fixed to the mounting bracket.

The drill rod probing hole detector can acquire accurate data and image information of a poor geological layer in the basic bearing layer, and accordingly, data of a drill rod probing report about the thickness and the like of the poor geological layer in the basic bearing layer can be accurately rechecked, and authenticity and reliability of the drill rod probing report can be accurately evaluated.

According to another aspect of the present invention, there is provided a method for detecting a poor geological formation in a foundation bearing formation by using a drill hole detector as described above, comprising the steps of:

aligning the drill rod detection hole to fix the support frame and leveling the adjustable base;

recording a scale value H1 on the probe tube before the hole is drilled;

rotating the adjusting handle to enable the probe tube to enter the drill rod probe hole;

acquiring real-time image information in a drill rod probing hole through a probe;

when the probe tube reaches the upper edge of the poor geological layer in the basic bearing layer, recording a scale value H2 on the probe tube at the moment, and accordingly determining the depth of the upper edge of the poor geological layer to be H2-H1;

when the probe reaches the lower edge of the poor geological layer in the basic bearing layer, recording scale data H3 on the probe at the moment, and accordingly determining the depth of the lower edge of the poor geological layer to be H3-H1;

the thickness of the poor geological formation was determined to be H3 to H2 from the above-mentioned scale data H3 and H2.

In an embodiment of the present invention, the acquiring, by a probe, real-time image information in a drill rod hole includes:

and controlling the spiral descending of a metal detection rod in the probe tube so as to enable the probe to extend out of the probe tube and acquire the real-time image information of 360 degrees around the probe tube.

The invention can accurately detect the scale of the poor geological layer in the basic bearing stratum, such as the transverse development depth of the karst cave and the fracture, thereby calculating the volume of the karst cave and the fracture very accurately.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

FIG. 1 is a schematic structural view of a drill hole detecting instrument according to an embodiment of the present invention; and

fig. 2 is a partially enlarged view of the drill hole detector shown in fig. 1.

Reference numerals

1 support frame

2 Adjustable base

21 first tray

22 second tray

23 leveling screw

3 mounting rack

31 adjusting handle

32 handle

4 exploring tube

5 Metal detecting rod

6 display device

7 storage battery

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their repetitive description will be omitted. It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

FIG. 1 is a schematic structural view of a drill hole detecting instrument according to an embodiment of the present invention; and FIG. 2 is a partially enlarged view of the drill hole detector shown in FIG. 1. According to one aspect of the present invention, there is provided a drill hole detector. As shown in fig. 1 and 2, the drill hole probing instrument includes: the device comprises a support frame 1, an adjustable base 2, a mounting frame 3, a probe 4, a metal detection rod 5 and a visual probe and display device 6. The adjustable base 2 is arranged on the support frame 1; the mounting frame 3 is fixed on the adjustable base 2; the probe tube 4 penetrates through the mounting frame 3 and the adjustable base 2 in a sliding mode, and scales are marked on the probe tube 4; the metal detection rod 5 can be spirally arranged in the probe tube 4 in a lifting way; the visual probe is arranged at the lower end of the metal detection rod; the display device 6 is arranged on the mounting rack 3; the display device 6 is connected to the visual probe and used for receiving, storing and displaying the image information acquired by the visual probe.

The drill rod probing hole detector can acquire accurate data and image information of a bad geological layer in the basic bearing layer, and accordingly relevant data of the bad geological layer in the basic bearing layer in a drill rod probing report are accurately rechecked, so that authenticity and reliability of the drill rod probing report are accurately judged.

As shown in fig. 2, the adjustable base 2 may include a first tray 21 and a second tray 22, and a plurality of leveling screws 23 are disposed between the first tray 21 and the second tray 22. Furthermore, one surface of the first tray 21 facing the second tray 22 is provided with a plurality of threaded holes, the threaded holes are connected with the leveling screws 23, and the leveling screws 23 are fixedly connected with the second tray 22 through bearings. Specifically, the leveling screw 23 can move up and down in the threaded hole of the first tray 21, and then the second tray 22 is driven to move up and down relative to the first tray 21, so as to adjust the second tray 22 to a horizontal state. The leveling screw 23 is fixedly connected with the second tray 22 through a bearing, and the leveling operation is performed on the second tray 22 by screwing the leveling screw 23 into or out of a threaded hole on the first tray 21.

As shown in fig. 1 and 2, an adjusting handle 31 may be disposed on the mounting seat, and the adjusting handle 31 is in transmission connection with the probe tube 4 to control the elevation of the probe tube 4. It will be understood by those skilled in the art that the adjusting handle 31 can control the elevation of the probe tube 4 through a rope, or can be connected to a gear through a rotating shaft, and a rack is provided on the outer wall of the probe tube 4 along the length direction thereof, so that the gear is engaged with the rack, thereby controlling the elevation of the probe tube 4 through rotating the gear. Furthermore, it should be understood by those skilled in the art that the outer wall of the metal probe rod may be provided with an external thread, and the probe tube 4 may be provided with an internal thread, and the metal probe rod is screwed with the probe tube 4 accordingly, so as to realize a spiral lifting relative to the probe tube 4. Of course, this is only one possible embodiment of the invention, and does not limit the scope of the invention.

With continued reference to fig. 2, the mounting bracket 3 may also be provided with a handle 32. The handle 32 is provided to make the bore hole locator portable and easy to use. Further, the drill hole detecting instrument may further include a battery 7, and the battery 7 is connected to the display device 6 and detachably fixed to the mounting frame 3. The battery may be used as a power source for the display device and to power the illumination of the visual probe. This increases the flexibility and reliability of the use of the bore hole probe.

The drill rod hole detecting instrument provided by the invention has the characteristics of simple structure, high efficiency and practicability. The use method of the drill rod probing hole detector mainly comprises the following steps: the supporting frame 1 is fixed, the adjustable base 2 is leveled, the adjusting handle 31 is manually rotated to enable the probe 4 to slowly fall into the drill rod detection hole, and the picture in the drill rod hole is transmitted to the display device 6 in real time through the visual probe at the end part of the metal detection rod 5. By contrasting the previously formed drilling record, when the probe approaches to the poor geological formation, the detector slowly rotates the adjusting handle 31 to align the probe with the upper edge of the poor geological formation, records the first scale data on the probe tube 4 at the moment, continuously rotates the adjusting handle 31 until the probe falls to the lower edge of the poor geological formation, and records the second scale data on the probe tube 4 at the moment. Therefore, the thickness of the poor geological layer is the difference between two recorded data, and the difference value is compared with the drill rod detection report to recheck the thickness of the poor geological layer in the basic bearing layer, so that the authenticity and the reliability of the drill rod detection report are accurately judged. When the unfavorable geological formation is the solution cavity, can stay probe 4 in the solution cavity, then rotate the metal probe rod in probe 4 and make it drive visual probe and screw out the lower extreme of probe 4 again, thereby can carry out 360 degrees rotatory observations to the solution cavity through visual probe and ascertain the solution cavity scale.

In summary, the present invention can obtain the accurate data and the image information of the unfavorable geological formation in the basic bearing layer, and accordingly, the related data of the unfavorable geological formation in the basic bearing layer in the drilling report is accurately rechecked, so as to accurately judge the authenticity and reliability of the drilling report.

According to another aspect of the present invention, there is provided a method for detecting a poor geological formation in a foundation bearing formation by using a drill hole detector as described above, with reference to fig. 1 and 2, the method comprising the steps of:

s100, aligning the drill rod detection hole to fix the support frame 1 and leveling the adjustable base 2.

And S200, recording a scale value H1 on the manhole front probe 4.

S300, the adjusting handle 31 is rotated to enable the probe tube 4 to enter the drill rod hole.

S400, acquiring real-time image information in the drill rod probing hole through the probe.

S500, when the probe 4 reaches the upper edge of the poor geological layer in the basic bearing layer, recording a scale value H2 on the probe 4 at the moment, and accordingly determining that the depth of the upper edge of the poor geological layer is the difference value between H2 and H1.

S600, when the probe 4 reaches the lower edge of the poor geological layer in the basic bearing stratum, recording the scale data H3 on the probe 4 at the moment, and accordingly determining the depth of the lower edge of the poor geological layer to be the difference value between H3 and H1.

And S700, determining the thickness of the poor geological layer as the difference between H3 and H2 according to the scale data H3 and H2.

The invention can accurately detect the scale of the poor geological layer in the basic bearing stratum, such as the transverse development depth of the karst cave and the fracture, thereby calculating the volume of the karst cave and the fracture very accurately.

In an embodiment of the present invention, the acquiring, by a probe, real-time image information in a drill rod hole includes: and controlling the spiral descending of a metal detection rod 5 in the probe tube 4 so as to enable the probe to extend out of the probe tube 4 and acquire the real-time image information of 360 degrees around the probe. Therefore, the scale of the karst cave can be accurately determined by combining the displayed scale data of the probe.

Specifically, the specific position of the unfavorable geological layer in the basic bearing stratum is obtained by contrasting data of a drilling detection report before the hole is detected, and the position of the unfavorable geological layer can be calculated through a drilling detection record. Before the detection of the access hole, the scale value H1 on the probe tube 4 is recorded, and then the adjusting handle 32 is slowly rotated to enable the probe to enter the drill rod detection hole at a constant speed. The geological condition of the hole wall can be observed very clearly on the display device 6 through the image information obtained by the visual probe at the front end of the metal detection rod 5 in the probe tube 4. When the probe enters the upper edge of the poor geological formation, the scale value H2 of the probe 4 at the moment is recorded, the video recording function of the display device 6 is started, then the metal detection rod 5 drives the probe to rotate 360 degrees and move downwards at a constant speed, and the scale data H3 on the probe 4 at the moment is recorded when the probe reaches the lower end of the poor geological formation. The recorded data can indicate that the upper end of the poor geological layer is positioned at the depth H2-H1 below the elevation of the top end of the probe hole, the lower end of the poor geological layer is positioned at the depth H3-H1 below the elevation of the top end of the probe hole, and the thickness of the poor geological layer is H3-H2. In order to more accurately detect the condition of the poor geological formation, the detection action can be performed back and forth between the upper edge and the lower edge of the geological formation so as to acquire a plurality of groups of depth data and image information within the range. In addition, the transverse development depth of unfavorable geological layers such as karst cave and fracture can be detected through the visual probe, so that the volumes of the karst cave and the fracture can be calculated very accurately.

In summary, the drill rod hole detecting instrument provided by the invention can be used for accurately detecting various data of poor geological layers in the foundation bearing stratum, such as positions, sizes, lithology or soil texture and the like. Meanwhile, the image information acquired by the visual probe can provide strong evidence support for the processing scheme of the poor geological layers. The geological condition of the basic bearing stratum can be further proved and verified, the truest and most accurate data can be obtained, the decisive data and the video material support are provided for the processing scheme provided for dealing with the unfavorable geological layer in the basic bearing stratum, and further the value is added for the construction project.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. The utility model provides a hole detection appearance is visited to borer which characterized in that includes:

a support frame;

the adjustable base is arranged on the support frame;

the mounting frame is fixed on the adjustable base;

the probe tube penetrates through the mounting frame and the adjustable base in a sliding mode, and scales are marked on the probe tube;

the metal detection rod can be spirally arranged in the probe tube in a lifting manner;

the visual probe is arranged at the lower end of the metal detection rod; and

the display device is arranged on the mounting rack; the display device is connected with the visual probe and used for receiving, storing and displaying the image information acquired by the visual probe.

2. The drill rod probing hole probe according to claim 1, wherein said adjustable base comprises a first tray and a second tray, and a plurality of leveling screws are disposed between said first tray and said second tray.

3. The drill rod probing hole detecting instrument according to claim 2, wherein a plurality of threaded holes are formed in a surface of the first tray facing the second tray, the threaded holes are connected with the leveling screws, and the leveling screws are fixedly connected with the second tray through bearings.

4. The drill rod probing hole detecting instrument according to claim 1, wherein an adjusting handle is provided on the mounting base, and the adjusting handle is in transmission connection with the probing tube for controlling the elevation of the probing tube.

5. The drill rod probing hole probe according to claim 1, wherein a handle is further provided on said mounting frame.

6. The pin hole detector according to claim 1, further comprising a battery connected to the display device and detachably fixed to the mounting bracket.

7. A method of detecting a poor geological formation in a base bearing formation by using the drill hole probe according to any one of claims 1 to 6, comprising the steps of:

aligning the drill rod detection hole to fix the support frame and leveling the adjustable base;

recording a scale value H1 on the probe tube before the hole is drilled;

rotating the adjusting handle to enable the probe tube to enter the drill rod probe hole;

acquiring real-time image information in a drill rod probing hole through a probe;

when the probe tube reaches the upper edge of the poor geological layer in the basic bearing layer, recording a scale value H2 on the probe tube at the moment, and accordingly determining the depth of the upper edge of the poor geological layer to be H2-H1;

when the probe tube reaches the lower edge of the poor geological layer in the basic holding layer, recording scale data H3 on the probe tube at the moment, and accordingly determining the depth of the lower edge of the poor geological layer in the basic holding layer to be H3-H1;

the thickness of the poor geological layer in the base bearing layer was determined to be H3 to H2 based on the above-mentioned scale data H3 and H2.

8. The method of claim 7, wherein the acquiring real-time image information in the drill rod hole by the probe comprises:

and controlling the spiral descending of a metal detection rod in the probe tube so as to enable the probe to extend out of the probe tube and acquire the real-time image information of 360 degrees around the probe tube.

Images