Trenchless Laying Construction Device for Road Pipelines and Its Construction Method

Abstract

The present application relates to the field of construction technology, and discloses a trenchless laying construction device for road pipelines, including: a horizontal directional drilling machine body, a reaming drill, a mud discharge box body and a clamping structure. The reaming drill is used to be detachably connected to the other end of the drilling rod alternately with a drilling bit; the mud discharge box body is movably connected to the end of the reaming drill away from the drilling rod; the clamping structure is in an annular structure, and the clamping structure is arranged on the side surface of the mud discharge box body away from the reaming drill. In the present application, the construction pipeline can be laid underground more stably and tightly, effectively avoiding the situation of road settlement caused by voids, enhancing the laying effect of the construction pipeline, making the laying construction of the construction pipeline safer and more reliable, reducing the impact on road traffic, ensuring the safety of the road, and improving the construction efficiency. The present application also discloses a construction method for a construction device for road pipeline laying.

Description

Technical Field

[0001] The present application relates to the field of construction technology, for example, to a road pipeline trenchless installation construction device and a construction method thereof. Background Art

[0002] In municipal engineering, the traditional construction method for laying municipal pipelines is to dig trenches and lay pipelines. The traditional construction method is complicated and requires a lot of manpower, resulting in high costs. It also has a great impact on road traffic and the environment, bringing inconvenience to people's lives.

[0003] There is a long-distance pipeline laying construction device in the related technology, which uses horizontal directional drilling technology to lay underground pipelines. The construction process is simple and efficient, and has little impact on road traffic and the environment. However, when using horizontal directional drilling to lay pipelines, after the construction is completed, the gap between the laid pipeline and the back-expanded hole is difficult to handle, and it cannot be backfilled and compacted like the trenching construction, which makes the road surface prone to settlement, reducing the safety of pipeline laying.

[0004] Therefore, how to lay the construction pipeline more stably and tightly underground, effectively avoid the settlement of the road surface caused by the creation of gaps, enhance the laying effect of the construction pipeline, and make the laying of the construction pipeline safer and more reliable has become a technical problem that needs to be urgently solved by technical personnel in this field.

[0005] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0006] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical elements or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0007] The disclosed embodiments provide a road pipeline trenchless laying construction device and a construction method thereof, which can enable the construction pipeline to be laid underground more stably and tightly, effectively avoiding the situation where the road surface causes settlement due to the generation of gaps, enhancing the laying effect of the construction pipeline, making the laying construction of the construction pipeline safer and more reliable, reducing the impact on road traffic, ensuring the safety of the road, and simplifying the construction process. It is possible to complete the pipeline laying construction quickly and efficiently, thereby improving construction efficiency.

[0008] In some embodiments, a trenchless laying construction device for road pipelines includes: a horizontal directional drilling machine body, a reaming drill, a mud discharge box body, and a clamping structure. The horizontal directional drilling machine body is arranged on one side of the road to be constructed, and a drilling drill rod is installed thereon. The other end of the drilling drill rod is detachably installed with a drilling bit. The horizontal directional drilling machine body is used to drive the drilling drill rod to drive the drilling bit to travel underground along a set direction to open a pipeline construction hole; the reaming drill is used to be alternately and detachably connected to the other end of the drilling drill rod with the drilling bit. Among them, when the pipeline construction hole is opened, the drilling bit is removed from one end of the drilling drill rod and the reaming drill is replaced; the mud discharge box body is movably connected to the end of the reaming drill away from the drilling drill rod. Among them, the inside of the mud discharge box body is a hollow structure, and mud is stored therein. A discharge hole is opened on the side surface of the mud discharge box body away from the reaming drill; the clamping structure is in a circular ring structure and is arranged on the side surface of the mud discharge box body away from the reaming drill for connecting and fixing one end of the construction pipeline. Among them, the discharge hole is located on the outer ring side of the clamping structure.

[0009] In some embodiments, a construction method for a trenchless laying construction device for road pipelines is applied to the trenchless laying construction device for road pipelines as described in any one of the above, and includes:

[0010] Place the horizontal directional drilling machine body on one side of the road to be constructed, and use the horizontal directional drilling machine body to drive the drilling drill rod to drive the drilling bit to travel underground along a set direction to complete the construction of opening the pipeline construction hole;

[0011] Remove the drilling bit from the drilling drill rod, and sequentially install the reaming drill, the mud discharge box body, the clamping structure, and the construction pipeline on the drilling drill rod;

[0012] Inject mud into the mud discharge box body;

[0013] Start the horizontal directional drilling machine body again to drive the drilling drill rod to drive the reaming drill and the mud discharge box body and the construction pipeline behind it to move backward along the drilling route of the opened pipeline construction hole to perform the laying operation of the construction pipeline.

[0014] The trenchless laying construction device for road pipelines and its construction method provided by the embodiments of the present disclosure can achieve the following technical effects:

[0015] When carrying out the construction of laying pipelines on the road, the method of first drilling and then reaming, and then threading the pipeline is adopted. And during the process of the construction pipeline entering the pipeline construction hole after reaming, the mud discharge box body can be used to fill the gap between the construction pipeline and the pipeline construction hole, so that after the construction pipeline is laid, there will be no gap left between the construction pipeline and the pipeline construction hole. Thus, the construction pipeline can be laid more stably and tightly underground, effectively avoiding the situation of road settlement caused by the generation of gaps, enhancing the laying effect of the construction pipeline, making the laying construction of the construction pipeline safer and more reliable, reducing the impact on road traffic, ensuring the safety of the road, simplifying the construction process, and being able to complete the laying construction of the pipeline quickly and efficiently, improving the construction efficiency.

[0016] The above general description and the following description are only exemplary and explanatory, and are not used to limit this application. Brief Description of the Drawings

[0017] One or more embodiments are exemplarily illustrated by corresponding drawings. These exemplary illustrations and the drawings do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements. The drawings do not constitute a scale limitation, and among them:

[0018] Figure 1 is a schematic structural diagram of a trenchless pipeline laying construction device for roads provided by an embodiment of the present disclosure;

[0019] Figure 2 is Figure 1 an enlarged view of part A in

[0020] Figure 3 is a schematic diagram of a drilling bit drilling provided by an embodiment of the present disclosure;

[0021] Figure 4 is a schematic structural diagram of a mud delivery pipe provided by an embodiment of the present disclosure;

[0022] Figure 5 is Figure 4 an enlarged view of part B in

[0023] Figure 6 is a schematic diagram of the relative position between the mud delivery pipe and the construction pipeline provided by an embodiment of the present disclosure;

[0024] Figure 7 is a schematic structural diagram of a propulsion structure provided by an embodiment of the present disclosure;

[0025] Figure 8 is a schematic diagram of a construction method for a trenchless pipeline laying construction device for roads provided by an embodiment of the present disclosure.

[0026] Reference Signs:

[0027] 100, Horizontal directional drilling machine body; 101, Drilling rod; 102, Drilling bit; 200, Pipeline construction hole; 300, Reaming drill; 400, Mud discharge box; 401, Discharge hole; 402, Mud delivery pipe; 403, Mud storage tank; 500, Clamping structure; 600, Construction pipeline; 700, Propulsion structure; 701, Fixed base; 702, Driving roller. Detailed implementation mode

[0028] In order to understand the features and technical content of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. The attached drawings are for reference and illustration only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a plurality of details are provided to provide a full understanding of the disclosed embodiments. However, one or more embodiments can still be implemented without these details. In other cases, well-known structures and devices can be shown in a simplified manner to simplify the drawings.

[0029] The terms "first", "second", etc. in the specification, claims and above-mentioned drawings of the embodiments of the present disclosure are used to distinguish similar objects and do not have to be used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so as to implement the embodiments of the present disclosure described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion.

[0030] In the embodiments of the present disclosure, the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", etc. is based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the embodiments of the present disclosure and their embodiments, and are not used to limit that the indicated devices, elements or components must have a specific orientation or be constructed and operated in a specific orientation. And, in addition to being able to represent the orientation or positional relationship, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0031] In addition, the terms "set", "connect", "fix" should be understood in a broad sense. For example, "connect" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or there is an internal connection between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0032] Unless otherwise specified, the term "plurality" means two or more.

[0033] In the embodiments of the present disclosure, the character " / " indicates that the objects before and after are in an "or" relationship. For example, A / B means: A or B.

[0034] The term "and / or" is an associative relationship describing an object, indicating that there can be three relationships. For example, A and / or B means: A or B, or, A and B.

[0035] It should be noted that, without conflict, the embodiments in the embodiments of the present disclosure and the features in the embodiments can be combined with each other.

[0036] Combined with Figures 1-3 As shown in the figure, the embodiments of the present disclosure provide a trenchless laying construction device for road pipelines, including: a horizontal directional drilling machine body 100, a reaming drill 300, a mud discharge box 400, and a clamping structure 500. The horizontal directional drilling machine body 100 is arranged on one side of the road to be constructed, and a drilling drill pipe 101 is installed thereon. The other end of the drilling drill pipe 101 is detachably installed with a drilling bit 102. The horizontal directional drilling machine body 100 is used to drive the drilling drill pipe 101 to drive the drilling bit 102 to travel underground along a set direction to open a pipeline construction hole 200; the reaming drill 300 is used to be alternately and detachably connected to the other end of the drilling drill pipe 101 with the drilling bit 102. Among them, when the pipeline construction hole 200 is opened, the drilling bit 102 is removed from one end of the drilling drill pipe 101 and the reaming drill 300 is replaced; the mud discharge box 400 is movably connected to the end of the reaming drill 300 away from the drilling drill pipe 101. Among them, the inside of the mud discharge box 400 is a hollow structure, and mud is stored therein. A discharge hole 401 is opened on a side surface of the mud discharge box 400 away from the reaming drill 300; the clamping structure 500 is in an annular structure, and the clamping structure 500 is arranged on a side surface of the mud discharge box 400 away from the reaming drill 300, and is used to connect and fix one end of the construction pipeline 600. Among them, the discharge hole 401 is located on the outer ring side of the clamping structure 500.

[0037] When using the trenchless laying construction device for road pipelines provided by the embodiments of the present disclosure, during the construction of laying pipelines on the road, the method of first drilling, then reaming, and then threading the pipeline is adopted. And during the process of the construction pipeline 600 entering the pipeline construction hole 200 after reaming, the mud discharge box 400 can be used to fill the gap between the construction pipeline 600 and the pipeline construction hole 200, so that after the construction pipeline 600 is laid, there will be no gap between the construction pipeline 600 and the pipeline construction hole 200. Thus, the construction pipeline 600 can be laid underground more stably and tightly, effectively avoiding the situation of road settlement caused by the generation of gaps, enhancing the laying effect of the construction pipeline 600, making the laying construction of the construction pipeline 600 safer and more reliable, reducing the impact on road traffic, ensuring the safety of the road, simplifying the construction process, being able to complete the pipeline laying construction quickly and efficiently, and improving the construction efficiency.

[0038] It can be understood that the clamping structure 500 is a circular clamp, and the clamp is a prior art, and its specific structure will not be described in detail here. In addition, the method of controlling the drilling bit 102 of the horizontal directional drilling machine body 100 to travel underground along a set direction is a prior art, and its specific form and the corresponding structure will also not be described in detail here.

[0039] Optionally, the clamping structure 500 and the mud discharge box 400 are detachably connected. Preferably, the clamping structure 500 and the mud discharge box 400 are connected by screws. In this way, it is convenient to separately disassemble, store and place the clamping structure 500 and the mud discharge box 400, and the installation method of the construction pipeline 600 can be diversified. The construction pipeline 600 can be pre-connected to the clamping structure 500 first, and then the clamping mechanism is installed on the mud discharge box 400, or the clamping structure 500 can be installed on the mud discharge box 400 first, and then the pipeline is connected to the clamping structure 500, meeting various different usage requirements.

[0040] It is worth noting that in order to ensure the smooth progress of drilling and reaming, in this application, both the reaming drill 300 and the drilling bit 102 adopt conical drills, and the maximum diameter of the reaming drill 300 is greater than the maximum diameter of the drilling bit 102. Secondly, when the reaming drill 300 and the drilling bit 102 are connected to the drilling rod 101, the smaller diameter ends of the two face in opposite directions, that is, the smaller diameter end of the reaming drill 300 is connected to the drilling rod 101, and the larger diameter end of the drilling bit 102 is connected to the drilling rod 101, which will not be described in detail here.

[0041] Such as Figures 4-6As shown, optionally, a mud delivery pipe 402 is connected to the mud discharge box 400, and the other end of the mud delivery pipe 402 is connected to the mud storage tank 403. Among them, when one end of the construction pipe 600 is connected to the clamping structure 500, the mud delivery pipe 402 is located inside the construction pipe 600. In this way, mud can be continuously delivered into the mud discharge box 400 for filling the voids, avoiding the situation of remaining voids due to insufficient mud, ensuring the comprehensiveness of void filling. And the mud delivery pipe 402 being located inside the construction pipe 600 is more reasonable, reducing the impact of the mud delivery pipe 402 on pipeline laying and ensuring that the pipeline laying can proceed orderly and stably.

[0042] Optionally, the length of the mud delivery pipe 402 is greater than the length of the construction pipe 600. In this way, during the advancing process, mud can be continuously grouted into the voids, avoiding the situation where void filling is affected due to insufficient length, ensuring smooth grouting and improving the stability of void filling.

[0043] Optionally, the mud delivery pipe 402 is a flexible pipe. In this way, it is convenient to adjust the position of the mud storage tank 403 to the side away from the construction pipe 600, and then connect the mud delivery pipe 402 to the mud storage tank 403, meeting various usage requirements and reducing the impact of the mud delivery pipe 402 on the laying process of the construction pipe 600.

[0044] Optionally, a delivery pump is provided in the mud discharge box 400 and / or the mud storage tank 403. In this way, using the delivery pump to deliver mud can ensure that the mud in the mud discharge box 400 can be stably and continuously discharged into the voids, ensuring the continuity of grouting and improving the void filling effect.

[0045] Optionally, there are multiple discharge holes 401, and the multiple discharge holes 401 are evenly arranged around the outer circumference of the clamping structure 500. In this way, using the multiple evenly arranged discharge holes 401, mud can be evenly grouted into the voids between the construction pipe 600 and the pipe construction hole 200, enabling all the voids to be filled, avoiding the situation of remaining voids, ensuring the comprehensiveness of void filling, and improving the void filling effect.

[0046] Optionally, the mud discharge box 400 has a cylindrical structure, and the diameter of the mud discharge box 400 is the same as the maximum diameter of the reaming drill 300. In this way, the structure of the mud discharge box 400 can be adapted to that of the reaming drill 300, reducing the impact of the mud discharge box 400 on the aperture of the pipe construction hole 200, and also avoiding the situation where, due to the small diameter of the mud discharge box 400, the void between the pipe and the pipe construction hole 200 is too large, resulting in the mud not being filled in time and there being still remaining voids, or the filling being relatively soft, resulting in the pipe being buried not tightly enough.

[0047] Optionally, the diameter of the mud discharge box 400 is larger than that of the construction pipeline 600. Preferably, the diameter of the construction pipeline 600 is four-fifths of the diameter of the mud discharge box 400. In this way, the pipeline can be more smoothly dragged into the pipeline construction hole 200, which helps to complete the laying of the pipeline efficiently and quickly, and can avoid the wear of the pipeline, enhancing the protection.

[0048] Optionally, a rotating shaft is provided at one end of the reaming drill 300 away from the drilling rod 101, and the mud discharge box 400 is arranged on the rotating shaft through a bearing. In this way, the mud discharge box 400 can be prevented from rotating along with the reaming drill 300, so as to avoid the situation that the construction pipeline 600 rotates in the pipeline construction hole 200 due to the rotation of the mud discharge box 400 along with the reaming drill 300, resulting in serious wear or deformation and damage of the construction pipeline 600. While enhancing the protection of the construction pipeline 600, the neatness and safety of the laying of the construction pipeline 600 are ensured.

[0049] Optionally, both between the mud discharge box 400 and the bearing and between the rotating shaft and the bearing are fixedly connected. Preferably, both between the mud discharge box 400 and the bearing and between the rotating shaft and the bearing are welded together. In this way, the installation of the mud discharge box 400 is more firm, avoiding the situation that the mud discharge box 400 detaches from the reaming drill 300, ensuring that the laying of the construction pipeline 600 can be carried out safely, orderly and stably.

[0050] Optionally, sealing washers are provided both between the reaming drill 300 and the mud discharge box 400 and between the clamping structure 500 and the construction pipeline 600. In this way, the sealing performance is enhanced, avoiding the mud generated during the reaming process from entering between the reaming drill 300 and the mud discharge box 400 and between the clamping structure 500 and the construction pipeline 600, thereby reducing the difficulty of subsequent cleaning and making the inside of the construction pipeline 600 cleaner.

[0051] Optionally, the reaming drill 300, the mud discharge box 400, the clamping structure 500 and the construction pipeline 600 are concentrically arranged. In this way, the installation of the reaming drill 300, the mud discharge box 400, the clamping structure 500 and the construction pipeline 600 is more reasonable, reducing the impact on the pipeline construction hole 200, making the structural shape of the pipeline construction hole 200 more regular, and ensuring the laying quality of the construction pipeline 600.

[0052] Such as Figure 7As shown, optionally, the trenchless laying construction device for road pipelines further includes: a propulsion structure 700. The propulsion structure 700 is arranged on the other side of the road to be constructed. When installing the construction pipeline 600, the construction pipeline 600 is located on the propulsion structure 700, and the propulsion structure 700 is used to push the pipeline forward. In this way, the propulsion structure 700 assists the horizontal directional drilling machine body 100 to push the construction pipeline 600 into the hole, reducing the resistance during the pipeline movement process, improving the laying efficiency, and helping to complete the laying construction of the construction pipeline 600 efficiently and quickly.

[0053] Optionally, the propulsion structure 700 includes a fixed base 701 and driving rollers 702. The driving rollers 702 are arranged in pairs, and the paired driving rollers 702 are rotatably arranged on the fixed base 701. Among them, there is a set spacing between the paired driving rollers 702, and the rotation directions of the paired driving rollers 702 are opposite. The construction pipeline 600 is located between the paired driving rollers 702, and the driving rollers 702 are used to drive the construction pipeline 600 to travel along the pipeline construction hole 200. In this way, it is ensured that the construction pipeline 600 can quickly move to the other end of the pipeline construction hole 200. At the same time, since the mud delivery pipe 402 is located inside the construction pipeline 600, using the paired driving rollers 702 to assist in pushing the construction pipeline 600 can reduce the impact of the propulsion structure 700 on the mud delivery process.

[0054] Optionally, the length of the construction pipeline 600 is greater than the length of the pipeline construction hole 200. In this way, the tail of the construction pipeline 600 is located outside the pipeline construction hole 200, facilitating the propulsion structure 700 to continuously push the pipeline.

[0055] Combined with Figure 8 As shown, the embodiment of the present disclosure provides a construction method for a trenchless laying construction device for road pipelines, which is applied to the trenchless laying construction device for road pipelines as described in any one of the above, including:

[0056] S01, Place the horizontal directional drilling machine body on one side of the road to be constructed, and use the horizontal directional drilling machine body to drive the drilling drill rod to drive the drilling bit to travel underground along the set direction to complete the construction of the pipeline construction hole.

[0057] S02, Remove the drilling bit from the drilling drill rod, and sequentially install an reaming drill, a mud discharge box body, a clamping structure, and a construction pipeline on the drilling drill rod.

[0058] S03, Inject mud into the mud discharge box body.

[0059] S04, Start the horizontal directional drilling machine body again to drive the drilling drill rod to drive the reaming drill and the mud discharge box body and the construction pipeline behind it to move in the reverse direction along the drilling route of the opened pipeline construction hole to perform the laying operation of the construction pipeline.

[0060] When using the construction method of the construction device for trenchless laying of road pipelines provided by the embodiments of the present disclosure in road pipeline laying construction, the method of first drilling, then reaming, and then threading the pipeline is adopted. And during the process of the construction pipeline entering the pipeline construction hole after reaming, the mud discharge box body can be used to fill the gap between the construction pipeline and the pipeline construction hole, so that after the construction pipeline is laid, there will be no gap between the construction pipeline and the pipeline construction hole. Thus, the construction pipeline can be laid underground more stably and tightly, effectively avoiding the situation of road settlement caused by the generation of gaps, enhancing the laying effect of the construction pipeline, making the laying construction of the construction pipeline safer and more reliable, reducing the impact on road traffic, ensuring the safety of the road, simplifying the construction process, and being able to complete the pipeline laying construction quickly and efficiently, improving the construction efficiency.

[0061] Optionally, place the horizontal directional drilling machine body on one side of the road to be constructed. Before driving the drilling rod to drive the drilling bit to travel underground along the set direction to complete the construction of the pipeline construction hole, it includes: on one side of the road to be constructed, excavate a construction foundation pit, and make the depth of the construction foundation pit greater than the distance between the pipeline construction hole to be opened and the ground. In this way, horizontal drilling can be carried out underground, simplifying the process of drilling and pipeline laying, and improving the convenience of drilling and pipeline laying.

[0062] Optionally, remove the drilling bit from the drilling rod, and sequentially install the reaming drill, the mud discharge box body, the clamping structure, and the construction pipeline on the drilling rod, including: removing the drilling bit and replacing it with the reaming drill; connecting the mud discharge box body behind the reaming drill; installing the clamping structure on the side of the mud discharge box body away from the reaming drill, and making the discharge port located on the outer ring side of the clamping structure; installing one end of the construction pipeline on the clamping structure. In this way, sequential construction is carried out on the reaming drill, the mud discharge box body, the clamping structure, and the construction pipeline in sequence, and the installation positions are more reasonable, which helps to ensure that the pipeline laying process can proceed orderly and stably.

[0063] It can be understood that in order to ensure the smoothness of drilling and make the drilling meet the usage requirements, when installing the drilling bit and the reaming drill, connect the larger-diameter end of the drilling bit to the drilling rod, and connect the smaller-diameter end of the reaming drill to the drilling rod.

[0064] Optionally, after connecting the mud discharge box to the reamer, it includes: arranging a rotating shaft at one end of the reamer away from the drilling rod, and setting the mud discharge box on the rotating shaft through a bearing. In this way, the mud discharge box can be prevented from rotating with the reamer, thus avoiding the situation that the construction pipeline rotates in the pipeline construction hole due to the rotation of the mud discharge box with the reamer, resulting in serious wear or deformation damage of the construction pipeline. While enhancing the protection of the construction pipeline, the neatness and safety of the laying of the construction pipeline are ensured.

[0065] Optionally, install the clamping structure on the side of the mud discharge box away from the reamer, and make the discharge port located behind the outer ring side of the clamping structure. It also includes: connecting one end of the mud delivery pipe to the mud discharge box, and passing the other end through the construction pipeline to connect with the mud storage tank. In this way, mud can be continuously delivered into the mud discharge box for filling the voids, avoiding the situation of remaining voids due to insufficient mud, ensuring the comprehensiveness of void filling. And the mud delivery pipe is located inside the construction pipeline, which is more reasonable, reducing the impact of the mud delivery pipe on pipeline laying and ensuring the orderly and stable progress of pipeline laying.

[0066] Optionally, injecting mud into the mud discharge box includes: starting the delivery pump of the mud storage tank and delivering mud into the mud discharge box through the mud delivery pipe. In this way, using the delivery pump to deliver mud can ensure that the mud in the mud discharge box can be stably and continuously discharged into the voids, ensuring the continuity of grouting and improving the void filling effect.

[0067] Optionally, start the horizontal directional drilling machine body again to drive the drilling rod to drive the reamer, the mud discharge box behind it and the construction pipeline to move backward along the drilling route of the opened pipeline construction hole to perform the laying operation of the construction pipeline, including: the reamer moves backward along the drilling route of the opened pipeline construction hole for reaming construction; the reamer drives the construction pipeline to move forward to perform the operation of dragging the construction pipeline; the slurry in the mud discharge box is evenly discharged through multiple discharge holes into the gap between the pipeline construction hole and the construction pipeline to perform the gap filling operation. In this way, when laying the pipeline, a method of combining reaming construction, dragging the construction pipeline operation and gap filling operation is used for pipeline laying construction, which can make the pipeline move more smoothly in the pipeline construction hole, and the mud discharge box can fill the void between the construction pipeline and the pipeline construction hole. After the construction pipeline is laid, there will be no voids between the construction pipeline and the pipeline construction hole, so that the construction pipeline can be laid more stably and tightly underground, effectively avoiding the situation of road surface settlement caused by the generation of voids, enhancing the laying effect of the construction pipeline and making the laying construction of the construction pipeline safer and more reliable.

[0068] Optionally, before the reamer drives the construction pipeline to move forward to perform the operation of dragging the construction pipeline, it further includes: placing the construction pipeline on the propulsion structure and using the propulsion structure to push the pipeline forward. In this way, the propulsion structure assists the horizontal directional drilling machine body to push the construction pipeline into the hole, reducing the resistance during the movement of the pipeline and improving the laying efficiency, which helps to complete the laying construction of the construction pipeline efficiently and quickly.

[0069] The above description and the drawings fully illustrate the embodiments of the present disclosure so that those skilled in the art can practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless explicitly required, the individual components and functions are optional, and the order of operations may vary. Parts and features of some embodiments may be included in or substituted for parts and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A trenchless laying construction device for road pipelines, characterized in that, Including: A horizontal directional drilling machine body (100) is arranged on one side of the road to be constructed. A drilling rod (101) is installed thereon, and a drilling bit (102) is detachably installed at the other end of the drilling rod (101). The horizontal directional drilling machine body (100) is used to drive the drilling rod (101) to drive the drilling bit (102) to travel underground along a set direction to form a pipeline construction hole (200). A reaming drill (300) is used to be alternately and detachably connected to the other end of the drilling rod (101) with the drilling bit (102). Wherein, when the pipeline construction hole (200) is completed, the drilling bit (102) is removed from one end of the drilling rod (101) and the reaming drill (300) is replaced. A mud discharge box body (400) is movably connected to the end of the reaming drill (300) far from the drilling rod (101). A rotating shaft is arranged at the end of the reaming drill (300) far from the drilling rod (101). The mud discharge box body (400) is arranged on the rotating shaft through a bearing, and both between the mud discharge box body (400) and the bearing and between the rotating shaft and the bearing are welded together. Sealing washers are arranged between the reaming drill (300) and the mud discharge box body (400) and between the clamping structure (500) and the construction pipeline (600). Wherein, the inside of the mud discharge box body (400) is a hollow structure, and mud is stored therein. A discharge hole (401) is opened on one side of the mud discharge box body (400) far from the reaming drill (300). A clamping structure (500) is in a circular ring structure. The clamping structure (500) is arranged on one side of the mud discharge box body (400) far from the reaming drill (300) and is used to connect and fix one end of the construction pipeline (600). Wherein, the discharge hole (401) is located on the outer ring side of the clamping structure (500). A propulsion structure (700) is arranged on the other side of the road to be constructed. When installing the construction pipeline (600), the construction pipeline (600) is located on the propulsion structure (700). The propulsion structure (700) is used to push the pipeline to travel. The propulsion structure (700) includes a fixed base (701) and driving rollers (702). The driving rollers (702) are arranged in pairs, and the paired driving rollers (702) are rotatably arranged on the fixed base (701). Wherein, there is a set distance between the paired driving rollers (702), and the rotation directions of the paired driving rollers (702) are opposite. The construction pipeline (600) is located between the paired driving rollers (702), and the driving rollers (702) are used to drive the construction pipeline (600) to travel along the pipeline construction hole (200).

2. The trenchless laying construction device for road pipelines according to claim 1, characterized in that, A mud delivery pipe (402) is connected to the mud discharge box body (400), and the other end of the mud delivery pipe (402) is connected to a mud storage tank (403). Wherein, when one end of the construction pipeline (600) is connected to the clamping structure (500), the mud delivery pipe (402) is located inside the construction pipeline (600).

3. The trenchless laying construction device for road pipelines according to claim 1, wherein, There are multiple discharge holes (401), and the multiple discharge holes (401) are evenly arranged around the outer circle circumference of the clamping structure (500).

4. The trenchless laying construction device for road pipelines according to claim 1, characterized in that, The mud discharge box body (400) is of a cylindrical structure, and the diameter of the mud discharge box body (400) is the same as the maximum diameter of the reaming drill (300).

5. The trenchless laying construction device for road pipelines according to any one of claims 1 to 4, wherein the reaming drill (300), the mud discharge box body (400), the clamping structure (500) and the construction pipeline (600) are concentrically arranged.

6. A construction method for a construction device for trenchless laying of road pipelines, applied to the construction device for trenchless laying of road pipelines according to any one of claims 1 to 5, characterized in that, Comprising: Place the horizontal directional drilling machine body on one side of the road to be constructed, and use the horizontal directional drilling machine body to drive the drilling drill pipe to drive the drilling bit to travel underground along the set direction to complete the construction of the pipeline construction hole. Remove the drilling bit from the drilling drill pipe, and sequentially install a reaming drill, a mud discharge box body, a clamping structure and a construction pipeline on the drilling drill pipe. Inject mud into the mud discharge box body. Start the horizontal directional drilling machine body again to drive the drilling drill pipe to drive the reaming drill and the mud discharge box body and the construction pipeline behind it to move reversely along the drilling route of the opened pipeline construction hole to perform the laying operation of the construction pipeline.

7. The construction method of the construction device for trenchless laying of road pipelines according to claim 6, characterized in that, Removing the drilling bit from the drilling drill pipe and sequentially installing a reaming drill, a mud discharge box body, a clamping structure and a construction pipeline on the drilling drill pipe includes: Remove the drilling bit and replace it with a reaming drill. Connect the mud discharge box body behind the reaming drill. Install the clamping structure on the side of the mud discharge box body away from the reaming drill, and make the discharge port located on the outer ring side of the clamping structure. Install one end of the construction pipeline on the clamping structure.

8. The construction method of the construction device for trenchless laying of road pipelines according to claim 7, characterized in that, Starting the horizontal directional drilling machine body again to drive the drilling drill pipe to drive the reaming drill and the mud discharge box body and the construction pipeline behind it to move reversely along the drilling route of the opened pipeline construction hole to perform the laying operation of the construction pipeline includes: The reaming drill moves reversely along the drilling route of the opened pipeline construction hole for reaming construction. The reaming drill drives the construction pipeline to travel to perform the operation of dragging the construction pipeline into the hole; the slurry in the mud discharge box body is evenly discharged through a plurality of discharge holes into the gap between the pipeline construction hole and the construction pipeline to perform the gap filling operation.

Images