Inclined drain hole construction device suitable for operating highway cutting slope and detection method of inclined drain hole construction device

Abstract

The invention provides an inclined drainage hole construction device suitable for an operation highway cutting slope and a detection method thereof.The inclined drainage hole construction device comprises a slope body, a drainage drill hole is formed in the slope body, a water guide mechanism is installed in the drainage drill hole, the water guide mechanism comprises a soft permeable pipe, and the soft permeable pipe is provided with a drainage hole; the flexible permeable pipe is an integrally-formed flexible pipe, and the flexible permeable pipe is of an integral continuous structure in the axial direction. An elastic supporting component is arranged in the flexible water permeable pipe, the elastic supporting component can extend or shorten in the axial direction of the flexible water permeable pipe, and the axial length of the flexible water permeable pipe is changed by extending or shortening the elastic supporting component in the axial direction of the flexible water permeable pipe.

Description

Technical Field

[0001] The present application relates to the field of road cutting slope construction, and in particular to an upward-sloping drainage hole construction device and a detection method thereof suitable for operating highway road cutting slopes. Background Art

[0002] In highway engineering, groundwater significantly impacts the stability and bearing capacity of roadbed structures. If not effectively controlled, long-term groundwater erosion can lead to roadbed softening, slippage, and even structural failure. Therefore, the current "Highway Subgrade Design Code" (JTG D30-2015) and "Highway Drainage Design Code" (JTG / T D33-2012) both stipulate that comprehensive measures, including interception, drainage, and drainage, should be implemented to address the adverse effects of groundwater and ensure the safety and stability of roadbed structures.

[0003] In existing technologies, effective groundwater control measures, such as seepage trenches, inclined drainage holes, seepage wells, and drainage tunnels, are primarily employed to address varying hydrogeological conditions and roadbed structures. Seepage trenches are suitable for areas susceptible to groundwater impact, such as low embankments, excavated roadbeds, and sloped sections. Their type is selected based on groundwater flow, burial depth, and drainage distance. These include stone-filled seepage trenches, sandless concrete seepage trenches, pipe-type seepage trenches, and hole-type seepage trenches. The trenches should be filled with permeable materials such as clean gravel and crushed stone, supplemented by a filter layer to prevent particle loss and pipe clogging. Seepage wells and drainage tunnels are primarily used in scenarios where there is a high demand for deep groundwater or surface water removal. Seepage wells can be installed individually or in groups to vertically intercept groundwater from fixed aquifers, or in conjunction with drainage tunnels for drainage. Their structure typically consists of a shaft filled with clean gravel and a filter layer to prevent clogging with fine particles. When used for down-cut channel drainage, they must also maintain a reasonable spacing from the roadbed structure. Drainage tunnels, the deepest form of drainage, are suitable for situations with deep groundwater deposits and high flow rates. They must be buried in stable strata, and their cross-sectional dimensions should be determined based on water volume calculations. Seepage wells or seepage pipes can be installed within the tunnel to enhance water collection capacity. Upward-sloping drainage holes are more widely applicable to structures such as slopes. By sloping drainage holes within the slope, groundwater is diverted away from the slope. Upward-sloping drainage holes are typically arranged in groups and should penetrate into groundwater-rich zones or potential sliding surfaces. The openings and pipe sections must be wrapped with permeable geotextiles to prevent clogging.

[0004] In existing highway cutting slope drainage projects, soft permeable pipes are increasingly used because they have full-section permeability and better drainage effects than perforated permeable pipes. Their service life can reach more than 10 years, far exceeding the limitation of perforated permeable pipes that fail after about 5 years due to blockage of the permeable holes. However, since soft permeable pipes are made of flexible materials, there are great difficulties in the actual construction process, especially in the drilling and installation operations.

[0005] In order to solve this problem, existing technologies such as Chinese patent CN202211538705.X ​​disclose an inclined drainage hole in a reinforced earth retaining wall and a construction method thereof. This solution splits the entire soft permeable pipe into multiple relatively independent segments, and then uses connecting rings, sliding rods, sleeves, fixed sleeves and other fixed joint mechanisms to splice and combine the multiple relatively independent segments in pairs to form the final soft permeable pipe.

[0006] Although the related existing technologies can solve the construction problem of the difficulty of extending the soft permeable pipe to the end of the drainage borehole to a certain extent, they still have the following shortcomings:

[0007] 1. The complex docking structure significantly increases the complexity of the construction process. Each segment needs to be precisely aligned and multiple components must be assembled, resulting in low construction efficiency.

[0008] 2. The installation accuracy of the docking mechanism during the splicing process is required to be high. A slight deviation may lead to loose connection or leakage, affecting the overall performance of the drainage system;

[0009] 3. The use of complex docking mechanisms increases material costs and maintenance difficulty, which is not conducive to the economy and long-term stability of the project. If a fixed joint fails, the installation of the entire section of soft permeable pipe will fail or the operation will fail. Summary of the Invention

[0010] The present disclosure provides an upward-sloping drainage hole construction device suitable for operating the side slope of a highway cutting, comprising a slope body, a drainage borehole opened on the slope body, a water guide mechanism installed in the drainage borehole, the water guide mechanism comprising a soft water-permeable pipe, the soft water-permeable pipe being an integrally formed flexible pipe, and the soft water-permeable pipe being an integrally continuous structure along the axial direction; an elastic support member is provided inside the soft water-permeable pipe, the elastic support member being able to extend or shorten along the axial direction of the soft water-permeable pipe, the elastic support member changing the axial length of the soft water-permeable pipe by extending or shortening in the axial direction of the soft water-permeable pipe, and the maximum length of the soft water-permeable pipe after being extended by the elastic support member is greater than or equal to the depth of the drainage borehole.

[0011] Preferably, the elastic support member is a tension spring, which has a free length and a stretched length, and the maximum stretched length of the tension spring is greater than or equal to the depth of the drainage borehole, wherein the free length is the axial length of the tension spring when not subjected to external force, and the stretched length is the axial length of the tension spring after being stretched by external force, and the stretched length of the tension spring is greater than the free length.

[0012] Preferably, the two ends of the tension spring are respectively fixedly connected to the axial ends of the soft water-permeable pipe, and the axial spacing between the two ends of the soft water-permeable pipe is consistent with the axial spacing between the two ends of the tension spring; the front end of the tension spring is provided with a pushing block, and the pushing block is fixedly connected to the front end of the tension spring; a telescopic rod is provided inside the tension spring, and the front end of the telescopic rod can extend toward the depth direction of the drainage borehole, and the front end of the telescopic rod can abut against the pushing block of the tension spring and apply a pushing force for adjusting the length of the tension spring.

[0013] Preferably, the telescopic rod body is composed of multiple sections of hollow cylindrical rods coaxially connected, and two adjacent sections of the telescopic rod can move relative to each other in the axial direction. A limited locking structure is also provided between the two adjacent sections of the telescopic rod, and the limited locking structure can be locked to limit the axial relative position of the telescopic rod.

[0014] Preferably, the limit locking structure includes an internal thread structure arranged on the inner wall of the outer rod body, and an external thread structure arranged on the outer wall of the inner rod body, wherein the inner rod body is arranged in the inner cavity of the outer rod body, and the internal thread structure of the outer rod body and the external thread of the inner rod body cooperate with each other to form a screw-nut sub-mechanism.

[0015] Preferably, the position limiting locking structure includes an elastic buckle provided on the inner wall of the outer rod body and a slot provided on the inner wall of the inner rod body, and the elastic buckle cooperates with the slot to fix the extension length of the telescopic rod.

[0016] Preferably, the limit locking structure includes a plurality of positioning holes provided on the outer rod body and the inner rod body and a locking pin assembly provided between the outer rod body and the inner rod body, and the locking pin assembly can be inserted between the outer rod body and the inner rod body to fix the extension length of the telescopic rod.

[0017] Preferably, the telescopic rod is also provided with a high-pressure water gun assembly for flushing the inside of the drainage borehole and an endoscope assembly for obtaining image information inside the drainage hole and transmitting image data to an external display terminal, wherein the high-pressure water gun assembly includes a water pipeline arranged in the internal cavity of the telescopic rod, and a nozzle arranged at the front end of the telescopic rod and connected to the water pipeline, the water pipeline is connected to the external high-pressure water supply interface to introduce external high-pressure water flow to the nozzle, and the endoscope assembly includes a camera and an illumination light source arranged at the front end of the telescopic rod, and the camera and the illumination light source are connected to a power supply module and a data transmission module.

[0018] Preferably, a plurality of optical fiber pressure sensors are embedded in the drainage borehole, and the optical fiber pressure sensors are distributed along the axial direction of the drainage borehole.

[0019] Preferably, an orifice section of PVC pipe is provided at the outer end of the soft permeable pipe.

[0020] In another aspect, the present invention provides a method for monitoring a construction device for an upward-sloping drainage hole on a cutting slope of an operating highway, comprising the following steps:

[0021] Drilling drainage holes at a preset angle on the slope of the cutting, wherein the drainage holes extend to a predetermined depth in an upward direction;

[0022] Inserting a soft water-permeable pipe provided with an elastic support member into the drainage borehole, and driving the elastic support member to extend in the axial direction by a telescopic rod, so that the elastic support member drives the soft water-permeable pipe to extend to a depth suitable for the drainage borehole;

[0023] The drainage borehole is flushed using a high-pressure water gun assembly located at the front end of the telescopic rod, and the endoscope assembly located at the front end of the telescopic rod is activated to capture and monitor images of the construction status inside the drainage borehole, and the image data is transmitted to an external display terminal in real time.

[0024] Compared with the related existing technology in which soft permeable pipes are divided into multiple sections and then assembled separately, the soft permeable pipe used in the inclined drainage hole construction device for operating highway cutting slopes provided in this application is an integrally formed flexible pipe and has an overall continuous structure along the axial direction. The soft permeable pipe does not need to be segmented or spliced ​​through connectors, so it does not require a complex docking structure, and has the beneficial effects of easy installation and good stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings described herein are used to provide a further understanding of the present disclosure and constitute a part of this application. The illustrative embodiments of the present disclosure and their descriptions are used to explain the present disclosure and do not constitute an improper limitation of the present disclosure. In the drawings:

[0026] Figure 1 Schematic diagram of the spatial arrangement of upward-sloping drainage holes on the cutting slope according to some embodiments of the present disclosure;

[0027] Figure 2 This is a schematic diagram of the upward-slanted drainage hole structure of some embodiments of the present disclosure;

[0028] Figure 3 Schematic diagram of a soft water-permeable pipe in some embodiments of the present disclosure in an extended and expanded state;

[0029] Figure 4 Schematic diagram of a soft water-permeable pipe in a compressed state according to some embodiments of the present disclosure;

[0030] Figure 5 is a schematic diagram of a telescopic rod according to some embodiments of the present disclosure;

[0031] Figure 6 This is a schematic structural diagram of a limit locking structure in a telescopic rod in some embodiments of the present disclosure;

[0032] Figure 7 A schematic diagram of another embodiment of the telescopic rod according to some embodiments of the present disclosure;

[0033] Figure 8 A schematic diagram of an endoscope assembly provided on a telescopic rod in some embodiments of the present disclosure;

[0034] Figure 9 A schematic diagram of a water spray assembly provided on a telescopic rod in some embodiments of the present disclosure;

[0035] Figure 10 A schematic diagram of providing a hose push-in cap in some embodiments of the present disclosure;

[0036] The accompanying drawings are numbered as follows: slope - 1; drainage drilling hole - 2; water guide mechanism - 3; soft permeable pipe - 4; telescopic rod - 5; pushing block - 6; screw nut sub-mechanism - 7; endoscope assembly - 8; water pipeline - 9; nozzle - 10; first tube body - 11; first axial support tube - 12; first connecting component - 13; second tube body - 14; second axial support tube - 15; second connecting component - 16; third tube body - 17; hose pushing cap - 18. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present disclosure and its application or use. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present disclosure.

[0038] Unless otherwise specifically stated, the relative arrangement of the parts and steps, the numerical expressions and the numerical values ​​set forth in these embodiments do not limit the scope of the present disclosure. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to actual proportional relationships. The techniques, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as being merely exemplary and not as limitations. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0039] In the description of the present disclosure, it should be understood that the use of words such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above words have no special meaning and therefore cannot be understood as limiting the scope of protection of the present disclosure.

[0040] In the description of the present disclosure, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present disclosure and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present disclosure; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0041] like Figure 1 and Figure 2 As shown, this embodiment provides an inclined drainage hole construction device suitable for operating the side slope of the highway cutting, including a slope body 1, a drainage borehole 2 is opened on the slope body 1, and a water guide mechanism 3 is installed in the drainage borehole 2. The water guide mechanism 3 includes a soft water permeable pipe 4, which is an integrally formed flexible pipe. The soft water permeable pipe 4 is an integral continuous structure along the axial direction; an elastic support member is provided inside the soft water permeable pipe 4, and the elastic support member can extend or shorten along the axial direction of the soft water permeable pipe 4. The elastic support member changes the axial length of the soft water permeable pipe 4 by extending or shortening in the axial direction of the soft water permeable pipe 4. The maximum length of the soft water permeable pipe 4 after the elastic support member drives the elongation is greater than or equal to the depth of the drainage borehole 2.

[0042] This embodiment of the inclined drainage hole, applicable to operating highway cutting slopes, is primarily used for drainage of highway cutting slopes. The inclined drainage hole is provided on the slope 1 of the cutting slope. In this embodiment, a cylindrical drainage borehole 2 is provided on the slope 1. The angle between the drainage borehole 2 and the plane of the slope 1 is 6-7°, preferably 6.5°, to ensure smooth water discharge and prevent sediment accumulation. The depth of the drainage borehole 2 is determined by the geological conditions of the slope and is typically between 2 and 5 meters.

[0043] In this embodiment, the water-guiding mechanism 3 installed in the drainage borehole 2 includes a soft water-permeable pipe 4 and an elastic supporting member, wherein the soft water-permeable pipe 4 is an integrally formed flexible pipe, and the soft water-permeable pipe 4 is an integrally continuous structure along the axial direction. Different from the method used in the related prior art of dividing a whole soft water-permeable pipe 4 into multiple sections and then assembling them separately, the soft water-permeable pipe 4 in this embodiment adopts an integrally formed flexible pipe, and the soft water-permeable pipe 4 is an integrally continuous structure along the axial direction. It does not need to be segmented or spliced ​​through connectors, so it does not require a complex docking structure, and has the beneficial effects of easy installation and good stability.

[0044] In this embodiment, the soft water-permeable pipe 4 can be extended or shortened in the axial direction, and its maximum extension length is greater than the depth of the drainage borehole 2. As an example, the depth of the drainage borehole 2 is 4 meters, and the maximum extension length of the soft water-permeable pipe 4 is 4.5 meters, thereby ensuring that the drainage hole is completely covered with a margin. The diameter of the soft water-permeable pipe 4 matches the inner diameter of the drainage borehole 2. To ensure installation tightness, as an example, the diameter of the soft water-permeable pipe 4 is 50-100 mm, and the inner diameter of the drainage borehole 2 is 50-100 mm. The pipe wall of the soft water-permeable pipe 4 is also provided with a plurality of water-permeable holes. The soft water-permeable pipe 4 collects the seepage water in the drainage borehole 2 through its water-permeable holes. The seepage water in the drainage borehole 2 flows along the inside of the soft water-permeable pipe 4 to the outlet of the drain hole, and is finally discharged from the slope 1. In this embodiment, an orifice section of PVC pipe is provided at the outer end of the soft water-permeable pipe 4.

[0045] like Figure 3 and Figure 4As shown, in this embodiment, in order to enable the soft water-permeable pipe 4 to extend or shorten in the axial direction, an elastic support member is provided inside the soft water-permeable pipe 4, and the elastic support member is located inside the tube cavity of the soft water-permeable pipe 4, and the elastic support member provides radial support to the soft water-permeable pipe 4 in the radial direction, and the elastic support member can extend or shorten along the axial direction of the soft water-permeable pipe 4 inside the soft water-permeable pipe 4, and the axial extension or shortening of the elastic support member in the soft water-permeable pipe 4 can drive the adjustment of the axial length of the soft water-permeable pipe 4, and the two ends of the elastic support member are connected to the two ends of the soft water-permeable pipe 4, and the two ends of the soft water-permeable pipe 4 move synchronously with the two ends of the elastic support member respectively, and the maximum length of the elastic support member in driving and adjusting the extension of the soft water-permeable pipe 4 is greater than or equal to the depth of the drainage borehole 2. With such a structure, the flexible nature of the soft water-permeable pipe 4 enables it to adapt to slight bends or irregular shapes in the drainage borehole 2, and the elastic supporting effect of the elastic supporting member can prevent the soft water-permeable pipe 4 from excessive deformation or collapse during the insertion process. In addition, the supporting effect of the elastic supporting member inside the soft water-permeable pipe 4 ensures that the soft water-permeable pipe 4 maintains structural stability during long-term use, avoiding deformation caused by soil pressure or water flow impact.

[0046] During the installation process, first determine the maximum length of the required extension of the soft water-permeable pipe 4 according to the depth of the drainage borehole 2, and then install the elastic support member in the soft drainage pipe. After the elastic support member is installed in the soft drainage pipe, the two are fixed so that the elastic support member can extend or shorten along the axial direction of the soft water-permeable pipe 4 inside the soft water-permeable pipe 4. After the elastic support member is installed in place, the length of the soft water-permeable pipe 4 is compressed by the elastic support member so that before the soft water-permeable pipe 4 is placed in the drainage borehole 2, the elastic support member limits the length of the soft water-permeable pipe 4 to less than the maximum extension length. After the soft water-permeable pipe 4 is placed in the drainage drill mouth, the construction personnel adjust the length of the soft water-permeable pipe 4 by extending the elastic support member so that the length of the soft water-permeable pipe 4 extends and reaches the depth of the drainage borehole 2, ensuring that it completely covers the space of the drainage borehole 2.

[0047] As a preferred embodiment, Figure 10 As shown, a hose jacking cap 18 is provided at the front end of the elastic support member. The hose jacking cap 18 is used to guide the jacking at the front end of the elastic support member and accommodate axial displacement during the jacking process. Specifically, the hose jacking cap 18 in this embodiment has a conical structure. The cylindrical end of the hose jacking cap 18 is fixedly connected to the front end of the elastic support member. The conical end of the hose jacking cap 18 extends toward the depth of the drainage borehole 2. The hose jacking cap 18 is used to guide the elastic support member to enter the drainage borehole 2 in a predetermined direction during the jacking process. It also serves as a limiter, guide, and seal, thereby improving construction stability and insertion accuracy.

[0048] In a preferred embodiment, the elastic support member is a tension spring having a free length and a stretched length. The maximum stretched length of the tension spring is greater than or equal to the depth of the drainage borehole 2. The free length is the axial length of the tension spring when not subjected to an external force, and the stretched length is the axial length of the tension spring after being stretched by an external force. The stretched length of the tension spring is greater than the free length. Specifically, the elastic support member used in this embodiment is a cylindrical tension spring coaxially disposed within the lumen of the flexible water-permeable pipe 4. The tension spring is capable of axial compression or expansion. When not subjected to a stretching force, the tension spring is in a contracted state within the lumen of the flexible water-permeable pipe 4. When subjected to a stretching force, the tension spring can expand to a maximum expanded length. The maximum expanded length of the tension spring is greater than the depth of the drainage borehole 2. By way of example, when the tension spring is in its naturally contracted state, the length of the flexible water-permeable pipe 4 is approximately 2 meters. When fully extended, the length of the flexible water-permeable pipe 4 can increase to over 4.5 meters. In this embodiment, a tension spring is provided inside the soft water-permeable pipe 4, and the compression and extension of the tension spring drive the soft water-permeable pipe 4 to expand and contract axially, thereby realizing the axial length adjustment of the soft water-permeable pipe 4 to adapt to drainage holes 2 of different depths. In addition, the tension spring filled inside the soft water-permeable pipe 4 can also play a radial supporting role, and since there is a gap after the tension spring is expanded, the problem of elastic support components blocking a large number of seepage holes on the soft water-permeable pipe 4 is avoided.

[0049] As a preferred embodiment, the elastic support member is a compression spring, which has a free length and a compressed length. The free length of the compression spring is greater than or equal to the depth of the drainage borehole 2. The free length is the axial length of the compression spring when it is not subjected to external force, and the compressed length is the axial length of the compression spring after being compressed. The compressed length is less than the free length. Specifically, the elastic support member used in this embodiment is a compression spring, which is cylindrical and coaxially arranged in the lumen of the soft water-permeable pipe 4. The compression spring can be compressed in the axial direction or released to restore to its original length. The compression spring installed in the lumen of the soft water-permeable pipe 4 is in a naturally stretched state when it is not subjected to external force, and its length is close to its free length. During installation or use, according to the actual depth of the drainage borehole 2, the compression spring can be compressed to the required length to adapt to boreholes of different depths. As an example, when the compression spring is in its natural state (free length), the length of the soft water-permeable pipe 4 is about 4.5 meters; when the compression spring is compressed to the shortest working length, the length of the soft water-permeable pipe 4 can be reduced to about 2 meters, thereby flexibly adapting to the requirements of drilling holes of different depths. In this embodiment, a compression spring is arranged inside the soft water-permeable pipe 4, and with the help of the elastic rebound ability and pressure adjustment ability of the compression spring, the length of the soft water-permeable pipe 4 along the axial direction is adjusted. This structure not only simplifies the adjustment method of the pipe structure, but also the compression spring plays a certain radial support role inside the soft water-permeable pipe 4, maintaining the structural stability of the pipe body in the hole. In addition, since the compression spring forms a gap space when it is compressed and deformed, it helps to maintain the penetration function of the soft water-permeable pipe 4 and avoid the problem of the spring structure blocking the seepage hole.

[0050] As a preferred embodiment, the two ends of the tension spring are respectively fixedly connected to the axial ends of the soft water-permeable pipe 4, and the axial spacing between the two ends of the soft water-permeable pipe 4 is consistent with the axial spacing between the two ends of the tension spring; the front end of the tension spring is provided with a push block 6, which is fixedly connected to the front end of the tension spring; a telescopic rod 5 is provided inside the tension spring, the front end of the telescopic rod 5 can extend toward the depth direction of the drainage borehole 2, and the front end of the telescopic rod 5 can abut against the push block 6 of the tension spring and apply a push force for adjusting the length of the tension spring. The force applied by the front end of the telescopic rod 5 to the push block 6 is a push force toward the depth direction of the drainage borehole 2, which expands the tension spring to increase the length of the tension spring, thereby changing the length of the soft water-permeable pipe 4, so that the soft water-permeable pipe 4 is extended to cover the entire depth of the drainage borehole 2.

[0051] like Figures 5 and 6As shown in the figure, as a preferred embodiment, the telescopic rod 5 is composed of multiple hollow cylindrical rod sections coaxially connected. Adjacent sections of the telescopic rod 5 are capable of axial relative movement. A limit locking structure is also provided between the adjacent sections of the telescopic rod 5. The limit locking structure can be locked to restrict the relative axial position of the telescopic rod 5. The limit locking structure includes an internal thread structure provided on the inner wall of the outer rod section and an external thread structure provided on the outer wall of the inner rod section. The inner rod section is disposed within the inner cavity of the outer rod section. The internal thread structure of the outer rod section cooperates with the external thread structure of the inner rod section to form a screw-nut assembly 7. With this structure, the length of the telescopic rod 5 can be adjusted and locked by means of a spiral screw structure formed by the cooperation of the internal and external thread structures. Construction personnel can adjust the length of the telescopic rod 5 by rotating the inner rod section, causing it to move axially within the outer rod section. Specifically, in this embodiment of the present invention, the telescopic rod 5 is composed of an outer rod section and an inner rod section. The inner rod section can be inserted into the outer rod section and move axially relative to the outer rod section to adjust the working length of the telescopic rod 5. The limit locking mechanism is a screw-nut mechanism. The inner wall of the outer rod is provided with an internal thread structure, preferably an embedded metal threaded ring. The outer wall of the inner rod is machined with a corresponding external thread structure. The internal and external threads of the outer and inner rods cooperate to form a screw-nut mechanism 7. To adjust the length of the telescopic rod 5, construction personnel rotate the inner rod, causing it to rotate forward and backward within the outer rod's internal thread structure, thereby driving the inner rod to move axially along the outer rod, thereby adjusting the overall axial length of the water diversion mechanism 3. Once adjusted, the self-locking effect of the threads stabilizes the length of the telescopic rod 5, effectively resisting axial thrust or vibration generated during construction and operation, and preventing displacement or loosening.

[0052] In some other embodiments, the position-limiting locking structure includes a plurality of positioning holes provided on the outer rod body and the inner rod body, and a locking pin assembly provided between the outer rod body and the inner rod body. The locking pin assembly can be inserted between the outer rod body and the inner rod body to fix the extension length of the telescopic rod 5. Specifically, the telescopic rod 5 includes a sleeved outer rod body and an inner rod body, the outer rod body is provided with a plurality of through holes along the axial direction, and the inner rod body is provided with a locking pin mechanism. The locking pin mechanism includes an elastically extendable locking pin, a spring return assembly, and a control button. When the inner rod body is inserted into the outer rod body, the construction worker retracts the locking pin by pressing the control button and slides to adjust the position of the inner rod body. After releasing the button, the locking pin automatically extends under the action of the spring and inserts into the through hole of the outer rod body, thereby achieving the length positioning and locking of the telescopic rod 5.

[0053] like Figure 7As shown, as another preferred embodiment, the telescopic rod 5 includes a first tube body 11, a first axial support tube 12 is provided in the axial middle part of the first tube body 11, the first axial support tube 12 is fixedly connected to the first tube body 11, and the first axial support tube 12 is coaxially arranged with the first tube body 11; an external thread section is provided on the outer surface of the first axial support tube 12, and the first axial support tube 12 is connected to the second tube body 14 through the external thread section, the outer diameter of the second tube body 14 is smaller than the inner diameter of the first tube body 11, the second tube body 14 can be received in the first tube body 11, the second tube body 14 is fixedly connected to the first connecting component 13, and the first connecting component 13 is provided There is an internal thread section that cooperates with the external thread section of the first axial support tube 12, and the second tube body 14 forms a screw nut pair with the first axial support tube 12 through the first connecting component 13. In this embodiment, the above-mentioned connecting component can be a nut connecting block structure, wherein the nut connecting block is fixedly connected to the second tube body 14, and the nut connecting block has an internal thread section that cooperates with the external thread section of the first axial support tube 12. When the second tube body 14 is rotated, the first connecting component 13 and the second tube body 14 can move axially relative to the first axial support tube 12 and the first tube body 11, thereby realizing the extension and retraction of the overall length of the telescopic rod.

[0054] As a preferred embodiment, a second axial support tube 15 is further provided on the connecting component of the second tube body 14, and the outer surface of the second axial support tube 15 is provided with an external threaded section, and the external threaded section of the second axial support tube 15 is connected to a second connecting component 16, and the second connecting component 16 is fixedly connected to a third tube body 17, and the outer diameter of the third tube body 17 is smaller than the inner diameter of the second tube body 14, and the second connecting component 16 is provided with an internal threaded section that cooperates with the external threaded section of the second axial support tube 15, and a screw nut pair is formed between the second connecting component 16 and the second axial support tube 15. When the third tube body 17 rotates, it can move axially relative to the second axial support tube 15 with the cooperation of the screw nut pair between the second connecting component 16 and the second axial support tube 15, so as to realize the telescopic adjustment of the overall length of the telescopic rod.

[0055] In this embodiment, the first axial support tube 12 and the second tube body 14 are connected by an external threaded section and an internal threaded section to form a screw-nut pair structure. By rotating the second tube body 14, it can be extended or retracted axially relative to the first tube body 11, thereby achieving a first-level telescopic adjustment. Furthermore, a second axial support tube 15 is provided on the second tube body 14. The second axial support tube 15 also forms another set of screw-nut pairs with the second connecting component 16 through external threads. The third tube body 15 can be further extended or retracted relative to the second tube body 14 when rotated, thereby achieving a second-level telescopic adjustment. This embodiment efficiently converts rotational motion into linear axial movement through the mechanical transmission relationship of the above-mentioned threaded pair, eliminating the need for other tools and facilitating length adjustment at the construction site. In addition, by providing the axial support tube structure, coaxial support connections are achieved between multiple tube bodies, allowing the telescopic rod 5 to maintain good coaxiality and overall structural stability even in multiple extension states, significantly improving bending rigidity and load-bearing capacity.

[0056] like Figure 8 and Figure 9 As shown, in some other embodiments, the telescopic rod 5 is further provided with a high-pressure water gun assembly for flushing the interior of the drainage borehole 2 and an endoscope assembly 8 for obtaining image information of the interior of the drainage hole and transmitting the image data to an external display terminal, wherein the high-pressure water gun assembly includes a water pipe 9 arranged in the internal cavity of the telescopic rod 5, and a nozzle 10 arranged at the front end of the telescopic rod 5 and connected to the water pipe 9, the water pipe 9 is connected to an external high-pressure water supply interface to introduce an external high-pressure water flow to the nozzle 10, and the endoscope assembly 8 includes a camera and an illumination light source arranged at the front end of the telescopic rod 5, and the camera and the illumination light source are connected to a power supply module and a data transmission module. In actual use, the construction personnel can first adjust the length of the telescopic rod 5 so that the high-pressure water gun assembly and the endoscope assembly 8 reach the target drainage hole area, and then start the high-pressure water gun for flushing, while viewing the internal structure and dredging effect in real time through the endoscope to ensure that the drainage hole is unobstructed. By installing a high-pressure water gun assembly and an endoscope assembly 8 at the end of the telescopic rod 5, the drainage system of the present invention not only has adjustable length and self-locking functions, but also integrates visual monitoring and active silt removal capabilities, significantly improving construction and maintenance efficiency. Cleaning, inspection, and adjustment can be completed without repeatedly plugging and unplugging the device, making it suitable for use in narrow or deep slope drainage holes, effectively improving the long-term reliability and maintainability of the drainage system.

[0057] In some other embodiments, a plurality of fiber optic pressure sensors are embedded in the drainage borehole 2 and are distributed along the axial direction of the drainage borehole 2. Specifically, a plurality of fiber optic pressure sensors are embedded at designated locations along the axial direction of the permeable pipe, wherein the designated locations include low-lying areas where blockage or water accumulation may occur and turning points of the water guide structure. The fiber optic pressure sensors are used to monitor changes in water pressure inside the drainage hole to determine whether there is blockage, siltation, or abnormal water flow in the permeable pipe. After detecting an abnormal signal fed back by the fiber optic pressure sensor, the operation and maintenance personnel can insert the telescopic rod 5 into the drainage hole to the depth corresponding to the fiber optic pressure sensor that sent the abnormal signal, and locate the blocked area with the help of the endoscope assembly 8. Once the blockage location is confirmed, the high-pressure water gun assembly is activated to perform targeted high-pressure flushing on the blocked area. The high-pressure water gun assembly is used to perform a targeted flushing operation on the blocked area to restore the drainage function.

[0058] Accordingly, the present invention provides a monitoring method for the construction device of the above-mentioned upward-sloping drainage hole suitable for operating the cutting slope of the expressway, comprising the following steps:

[0059] S100, drilling a drainage borehole 2 on a cut slope 1 at a preset angle, the drainage borehole 2 extending in an upward direction to a predetermined depth;

[0060] S200, inserting a flexible water-permeable pipe 4 provided with an elastic support member into the drainage borehole 2, and driving the elastic support member to extend in the axial direction via the telescopic rod 5, so that the elastic support member drives the flexible water-permeable pipe 4 to extend to a depth suitable for the drainage borehole;

[0061] S300, use the high-pressure water gun assembly set at the front end of the telescopic rod 5 to flush the drainage borehole 2, start the endoscope assembly 8 set at the front end of the telescopic rod 5, collect and monitor the construction status in the drainage borehole 2, and transmit the image data to the external display terminal in real time.

[0062] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure and are not intended to limit them. Although the present disclosure has been described in detail with reference to preferred embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present disclosure can still be modified or some technical features can be replaced by equivalents, which should all be included in the scope of the technical solutions claimed for protection in the present disclosure.

Claims

1. An upward-sloping drainage hole construction device suitable for use on the cutting slope of an operating highway, comprising a slope body, a drainage borehole formed on the slope body, a water guide mechanism installed in the drainage borehole, the water guide mechanism comprising a soft permeable pipe, and characterized by: The soft water-permeable pipe is an integrally formed flexible pipe, and the soft water-permeable pipe is an integral continuous structure along the axial direction; an elastic support member is provided inside the soft water-permeable pipe, and the elastic support member can extend or shorten along the axial direction of the soft water-permeable pipe. The elastic support member changes the axial length of the soft water-permeable pipe by extending or shortening in the axial direction of the soft water-permeable pipe, and the maximum length of the soft water-permeable pipe after being extended by the elastic support member is greater than or equal to the depth of the drainage borehole.

2. The upward-inclined drainage hole construction device suitable for highway cutting slopes according to claim 1 is characterized in that: The elastic support member is a tension spring, which has a free length and a stretched length. The maximum stretched length of the tension spring is greater than or equal to the depth of the drainage borehole, wherein the free length is the axial length of the tension spring when not subjected to external force, and the stretched length is the axial length of the tension spring after being stretched by external force. The stretched length of the tension spring is greater than the free length.

3. The upward-sloping drainage hole construction device suitable for highway cutting slopes according to claim 2 is characterized in that: The two ends of the tension spring are respectively fixedly connected to the axial ends of the soft water-permeable pipe, and the axial spacing between the two ends of the soft water-permeable pipe is consistent with the axial spacing between the two ends of the tension spring; the front end of the tension spring is provided with a pushing block, and the pushing block is fixedly connected to the front end of the tension spring; a telescopic rod is provided inside the tension spring, and the front end of the telescopic rod can extend toward the depth direction of the drainage borehole, and the front end of the telescopic rod can abut against the pushing block of the tension spring and apply a pushing force for adjusting the length of the tension spring.

4. The upward-sloping drainage hole construction device suitable for highway cutting slopes according to claim 3 is characterized in that: The telescopic rod body is composed of multiple hollow cylindrical rods coaxially connected, and two adjacent rods in the telescopic rod can move relative to each other in the axial direction. A limited locking structure is also provided between the two adjacent rods in the telescopic rod, and the limited locking structure can be locked to limit the axial relative position of the telescopic rod.

5. The upward-inclined drainage hole construction device suitable for highway cutting slopes according to claim 4 is characterized in that: The limit locking structure includes an internal thread structure arranged on the inner wall of the outer rod body, and an external thread structure arranged on the outer wall of the inner rod body, wherein the inner rod body is arranged in the inner cavity of the outer rod body, and the internal thread structure of the outer rod body and the external thread of the inner rod body cooperate with each other to form a screw-nut sub-mechanism.

6. The upward-inclined drainage hole construction device suitable for highway cutting slopes according to claim 4 is characterized in that: The limit locking structure includes a plurality of positioning holes provided on the outer rod body and the inner rod body and a locking pin assembly provided between the outer rod body and the inner rod body. The locking pin assembly can be inserted between the outer rod body and the inner rod body to fix the extension length of the telescopic rod.

7. The upward-inclined drainage hole construction device suitable for highway cutting slopes according to claim 3 is characterized in that: The telescopic rod is also provided with a high-pressure water gun assembly for flushing the inside of the drainage borehole and an endoscope assembly for acquiring image information inside the drainage hole and transmitting the image data to an external display terminal.

8. The upward-sloping drainage hole construction device suitable for highway cutting slopes according to claim 7 is characterized in that: The high-pressure water gun assembly includes a water pipeline arranged in the internal cavity of the telescopic rod, and a nozzle arranged at the front end of the telescopic rod and connected to the water pipeline. The water pipeline is connected to an external high-pressure water supply interface to introduce external high-pressure water flow to the nozzle. The endoscope assembly includes a camera and an illumination light source arranged at the front end of the telescopic rod. The camera and the illumination light source are connected to a power supply module and a data transmission module.

9. The upward-sloping drainage hole construction device suitable for highway cutting slopes according to claim 3 is characterized in that: A plurality of optical fiber pressure sensors are embedded in the drainage borehole, and the optical fiber pressure sensors are distributed along the axial direction of the drainage borehole.

10. A method for detecting a construction device for an upward-sloping drainage hole on a cutting slope of an operating expressway as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: Drilling drainage holes at a preset angle on the slope of the cutting, wherein the drainage holes extend to a predetermined depth in an upward direction; Inserting a soft water-permeable pipe provided with an elastic support member into the drainage borehole, and driving the elastic support member to extend in the axial direction by a telescopic rod, so that the elastic support member drives the soft water-permeable pipe to extend to a depth suitable for the drainage borehole; The drainage borehole is flushed using a high-pressure water gun assembly located at the front end of the telescopic rod, and the endoscope assembly located at the front end of the telescopic rod is activated to capture and monitor images of the construction status inside the drainage borehole, and the image data is transmitted to an external display terminal in real time.

Images