Horizontal directional drilling construction method for municipal underground pipeline

Abstract

The invention provides a horizontal directional drilling construction method for municipal underground pipelines, which comprises the following steps of: investigating a field actual construction area, and collecting and analyzing stratum data; setting parameters; gradually implementing; the construction scheme is optimized; an implementation scheme is determined, and the monitoring device performs real-time monitoring. The method has the beneficial effects that the horizontal directional drilling construction technology for research is applied to construction of underground pipelines under the complex conditions, and construction technology research of horizontal directional drilling under the complex municipal pipe network conditions is formed by combining previous horizontal directional drilling construction and construction quality control research results. According to the technical research, pipeline laying construction can be effectively carried out under complex construction conditions, the construction quality is enhanced, the cost can be saved, the influence on the surrounding environment in the construction process is reduced, and the method is expected to be widely applied to construction areas with complex urban underground pipeline distribution, close to building structures or crossing rivers and railways and the like. And certain economic, social and environmental benefits are obtained.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of pipeline construction, and particularly relates to a horizontal directional drilling construction method for municipal underground pipelines. BACKGROUND

[0002] Underground pipelines are important components of urban and even most extensive regional infrastructures, like nerves and blood vessels in human body, and bear the work of conveying information, transporting energy and circulating materials, and have gradually become a basic condition for people to survive and develop. The traditional construction method of underground pipelines is trenching and pipe burying, and the biggest disadvantage of this method is that it greatly influences traffic and environment. In comparison, non-excavation technology has the remarkable advantages of not polluting environment, small destructiveness to traffic, low construction cost and the like, and has gradually been paid attention to and popularized, and good social and economic benefits have been achieved. The horizontal directional drilling construction is one of non-excavation technologies, and is suitable for underground pipeline crossing construction with complex underground pipelines, no influence on traffic and short construction period.

[0003] The present project is a newly-built and reconstructed urban pipeline network and urban road engineering, and the construction area is located in a prosperous urban area, with dense population, great traffic pressure and complex underground pipeline distribution. How to not influence the travel of residents around the construction area, reduce the pressure of urban traffic system, reduce the influence on urban environment pollution during construction and reduce the influence on the existing pipelines becomes the key and difficult point of the present project construction. Through the analysis of geological data and the position of underground pipelines, it is determined that the horizontal directional drilling technology is adopted for the construction of the reclaimed water pipeline. SUMMARY

[0004] Therefore, the present application aims to provide a horizontal directional drilling construction method for municipal underground pipelines to solve at least one problem in the prior art.

[0005] To achieve the above object, the technical scheme of the present application is as follows: A horizontal directional drilling construction method for municipal underground pipelines, comprising the following steps: S1, investigating the actual construction area on site, and collecting and analyzing stratum data; S2, setting various parameters of the horizontal directional drilling equipment by combining the actual situation on site, analysis and comparison; S3, gradually implementing according to the pipe jacking construction process; S4, optimizing the construction scheme; S5, determining the implementation scheme and participating in the construction construction; S6, using monitoring equipment to monitor the horizontal directional drilling equipment in real time.

[0006] Further, in step S1, the actual construction area on site is investigated, and stratum data is collected and analyzed, including: Before construction, the actual construction area is investigated comprehensively, including recording the distribution, type and foundation of ground buildings, understanding the traffic flow and traffic period requirements, and drawing topographic map; Through geological exploration means, stratum data is collected, and the lithology, soil type, water content, underground water level and possible obstacles are analyzed to form a stratum report.

[0007] Further, in step S2, the parameters of the horizontal directional drilling equipment are set in combination with the actual site, including: In combination with the data obtained from the actual site investigation, including stratum hardness, underground pipeline distribution, and engineering requirements for underground pipeline laying accuracy and depth, different construction parameter combinations are analyzed and compared; The drilling speed, torque, mud pressure and flow parameters of the horizontal directional drilling equipment are set, the drilling speed and torque are increased in hard stratum, and the speed is reduced when rock layer or obstacle is encountered; the bit torque is adjusted according to the stratum resistance; at the same time, the mud pressure and flow are adjusted.

[0008] Further, in step S3, the pipe jacking construction process is implemented step by step, including: First, the working well and the receiving well are constructed: The position of the working well is selected considering the site conditions, pipeline direction and convenience of subsequent equipment access, and the receiving well is set with high precision and maintains the corresponding relationship with the working well axis; During drilling, the direction of the drill bit is controlled, and the azimuth angle and inclination angle parameters of the drill bit are monitored in real time by monitoring equipment. If deviation is found, it is corrected by adjusting the drilling parameters or using a guide correction device to ensure that the pipeline is laid according to the predetermined track; Every drilling set length, the hole wall is treated with mud protection to prevent hole wall collapse; according to the stratum condition, the mud is supplemented to maintain the balance of the hole pressure.

[0009] Further, in step S4, the construction scheme is optimized, including: During construction, based on monitoring equipment, ground subsidence, surrounding building displacement, and underground water level changes are monitored in real time, data is collected and a dynamic monitoring database is established; According to the monitoring data and the problems encountered in the actual construction, the construction scheme is adjusted by adjusting the drilling parameters, improving the mud formula or changing the construction sequence.

[0010] Further, in step S5, the implementation scheme is determined, and the whole construction process is participated, including: The implementation scheme is determined, the responsible person, time node and quality standard of each construction link are clear; According to the implementation, the project manager participates in the site management, coordinates the cooperation between various types of work, supervises the construction quality, and solves the equipment failure and personnel allocation problems in the construction.

[0011] Further, in step S6, the horizontal directional drilling equipment is monitored in real time by using a monitoring device, including: The key parameters of the drilling equipment are collected in real time by using sensors, including drilling speed, torque, thrust, and drill bit temperature, and the collected data is transmitted to the monitoring center through wireless transmission technology, so that the monitoring personnel can master the equipment operation state, and if an abnormality is found, an alarm is issued and corresponding measures are taken.

[0012] In a preferred embodiment of the present application, in step S6, the monitoring device includes a sensor module, a data acquisition and transmission unit, a monitoring terminal, and a remote diagnosis and maintenance module, the sensor module is installed to the horizontal directional drilling equipment, the data acquisition and transmission unit is communicatively connected to the sensor module at the input end, the data acquisition and transmission unit is communicatively connected to the monitoring terminal at the output end, and the monitoring terminal is further communicatively connected to the remote diagnosis and maintenance module.

[0013] Further, the sensor module includes a pressure sensor, a torque sensor, and a displacement sensor, the pressure sensor is installed at the drill rod propulsion system to monitor the pressure change in the drill rod propulsion process in real time and feedback the drilling resistance condition; The torque sensor is installed at the power output shaft part to measure the torque value when the drill bit rotates, so as to judge the hardness of the stratum and the working state of the drill bit; The displacement sensor is arranged at the connection of the drill rod, and the drilling depth and speed are calculated by monitoring the displacement of the drill rod.

[0014] Further, the data acquisition and transmission unit is used to connect the pressure sensor, the torque sensor, and the displacement sensor, convert the collected analog signals into digital signals, and transmit the data to the monitoring terminal in real time through the wireless transmission module.

[0015] Further, the monitoring terminal includes a hardware structure and a software structure, the hardware structure is a processor and a large-capacity storage device, which is used to quickly process massive sensor data and store the data in categories; the software structure is loaded with visual monitoring software, which is used to display the real-time change curve of each parameter; an early warning system is further arranged in the software and hardware structure, which issues an audible and visual alarm when the parameter exceeds the preset threshold, reminding the operator to timely adjust the construction parameters or check the equipment.

[0016] Further, the remote diagnosis and maintenance module has a remote connection function, can remotely access monitoring terminal data through the Internet, remotely diagnoses the running condition of the equipment, and combines historical running data of the equipment and a fault case library to analyze fault causes and provide maintenance suggestions.

[0017] Compared with the prior art, the horizontal directional drilling construction method for municipal underground pipelines has the following advantages: The horizontal directional drilling construction method for municipal underground pipelines has the following advantages: the horizontal directional drilling construction method for municipal underground pipelines is researched based on pipeline construction of the pipe network and supporting municipal infrastructure projects in Baoding City, combined with the characteristics of more underground pipelines and complex distribution, busy traffic, and actual engineering requirements, and the construction technology of horizontal directional drilling is applied to the construction of underground pipelines under complex conditions, combined with previous research results of horizontal directional drilling construction and construction quality control, the construction technology research of horizontal directional drilling under complex conditions of municipal pipe network is formed. BRIEF DESCRIPTION OF DRAWINGS

[0018] The drawings that form a part of this application provide further understanding of the present application, the illustrative embodiments of the present application and their description serve to explain the present application, and do not constitute an improper limitation on the present application. In the drawings: Fig. 1 The construction method flowchart described in the embodiments of the present application is shown in the figure; Fig. 2 The principle diagram of the monitoring device described in the embodiments of the present application is shown in the figure; Fig. 3 The detailed principle diagram of the monitoring device described in the embodiments of the present application is shown in the figure. DETAILED DESCRIPTION

[0019] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0020] In the description of the present application, it needs to be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" and the like are only for description purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" and the like can be explicitly or implicitly included one or more. In the description of the present application, unless otherwise stated, the meaning of "a plurality of" is two or more.

[0021] In the description of the present application, it needs to be understood that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood through specific circumstances.

[0022] The present application will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0023] As Figs. 1 to 3 shown, a horizontal directional drilling construction method for municipal underground pipelines, comprising the following steps: S1, investigating the actual construction area on site, collecting and analyzing stratum data; S2, combining the actual situation, analyzing and comparing, setting various parameters of the horizontal directional drilling equipment; S3, according to the pipe jacking construction process, gradually implementing, paying attention to detail control in the process, solving the corresponding problems; S4, hiring craftsmen and external experts and scholars with rich construction experience to optimize the construction scheme; S5, actively communicating with each participating unit to determine the implementation scheme, and participating in the construction throughout the process; S6, using monitoring equipment to monitor the horizontal directional drilling equipment in real time.

[0024] In a preferred embodiment of the present application, in step S1, the actual construction area on site is investigated, and the stratum data is collected and analyzed, including: Before construction, organize a professional survey team to conduct a comprehensive investigation of the actual construction area. This includes but is not limited to detailed recording of the distribution, type and foundation of ground buildings, understanding of surrounding traffic flow and traffic period requirements, and drawing of accurate topographic maps.

[0025] At the same time, through geological exploration means such as drilling and geophysical prospecting, collect stratum data. Analyze the lithology, soil type, water content, groundwater level and possible obstacles (such as existing pipelines, rock layer distribution, etc.) of the stratum, and form a detailed stratum report to provide a solid basis for setting subsequent construction parameters.

[0026] In a preferred embodiment of the present application, in step S2, the parameters of the horizontal directional drilling equipment are set in combination with the actual situation, including: In combination with the data obtained from the actual investigation, such as stratum hardness, underground pipeline distribution, etc., and the accuracy and depth requirements of the project for underground pipeline laying, different construction parameter combinations are analyzed and compared.

[0027] The key parameters of the horizontal directional drilling equipment, such as drilling speed, torque, mud pressure and flow, are set. For harder strata, the drilling speed and torque are appropriately increased, and in soft soil layers, the speed can be appropriately increased, and when rock layers or obstacles are encountered, the speed is reduced; the drill bit torque is adjusted in real time to ensure that the drill bit can effectively break the stratum rock and smoothly advance; at the same time, the mud pressure and flow are reasonably adjusted to ensure the stability of the borehole and the effect of sludge removal; if the environment around the underground pipeline is complex, the drilling speed needs to be reduced, and the torque needs to be controlled finely to prevent damage to the existing pipeline.

[0028] In a preferred embodiment of the present application, in step S3, according to the pipe jacking construction process, it is implemented step by step, including: According to the standard process flow of pipe jacking construction, first, the construction of the working well and the receiving well is carried out. The position of the working well is selected by considering the site conditions, pipeline direction and convenience of subsequent equipment access to ensure that it has enough space to accommodate the directional drilling equipment and operators. The setting accuracy of the receiving well needs to be high and maintain accurate axial correspondence with the working well.

[0029] During drilling, the direction of the drill bit is strictly controlled. The azimuth angle, inclination angle and other parameters of the drill bit are monitored in real time using monitoring equipment, and once a deviation is found, it is immediately corrected by adjusting the drilling parameters or using a guide correction device to ensure that the pipeline is laid according to the predetermined trajectory.

[0030] Every time a certain length is drilled, the mud wall protection treatment of the hole wall is carried out in time to prevent the hole wall from collapsing. According to the stratum conditions, mud is supplemented in time to maintain the pressure balance in the hole.

[0031] In a preferred embodiment of the present application, in step S4, the construction scheme is optimized, including: During the construction process, real-time monitoring of ground settlement, displacement of surrounding buildings, changes in groundwater level, etc. is carried out based on monitoring equipment, data is collected and a dynamic monitoring database is established.

[0032] Daily construction technical personnel, engineers and monitoring personnel are organized to hold a construction summary meeting. According to the monitoring data and the problems encountered in the actual construction, such as drilling difficulty, mud leakage, etc., the construction scheme is optimized. Adjust the drilling parameters, improve the mud formula or change the construction sequence, etc. to ensure the safety and smooth progress of the construction.

[0033] In a preferred embodiment of the present application, in step S5, the implementation plan is determined and the whole construction process is participated, including: After several rounds of scheme optimization, the detailed implementation plan is finally determined. The plan clearly defines the responsible person, time node and quality standard of each construction link.

[0034] The construction team strictly follows the implementation plan to carry out the construction, and the project management personnel participate in the site management throughout the process. Coordinate the cooperation between different types of work, supervise the construction quality, and timely solve the problems such as equipment failure, personnel allocation, etc. in the construction process, to ensure the efficient and orderly progress of the whole construction process.

[0035] In a preferred embodiment of the present application, in step S6, the horizontal directional drilling equipment is monitored in real time by using monitoring equipment, including: Using high-precision sensors, the key parameters of the drilling equipment, such as drilling speed, torque, thrust, drill bit temperature, etc. are collected in real time, and the data is transmitted to the monitoring center through wireless transmission technology. The monitoring personnel can master the equipment running state at any time, and once an abnormality is found, an alarm is issued immediately and corresponding measures are taken to avoid equipment failure causing construction accidents.

[0036] In a preferred embodiment of the present application, in step S6, the monitoring equipment includes a sensor module, a data acquisition and transmission unit, a monitoring terminal and a remote diagnosis and maintenance module, the sensor module is installed to the horizontal directional drilling equipment, the data acquisition and transmission unit input end is connected with the sensor module in communication, the data acquisition and transmission unit output end is connected with the monitoring terminal in communication, and the monitoring terminal is further connected with the remote diagnosis and maintenance module in communication.

[0037] In a preferred embodiment of the present application, the sensor module includes: A high-precision pressure sensor is installed at the drill rod propulsion system to monitor the pressure change during the drill rod propulsion process in real time and accurately feedback the drilling resistance.

[0038] The torque sensor is installed at the power output shaft part to accurately measure the torque value when the drill bit rotates, so as to judge the hardness of the stratum and the working state of the drill bit.

[0039] The displacement sensor is arranged at the connection of the drill pipe, and the drilling depth and speed are calculated by monitoring the displacement of the drill pipe, so as to ensure accurate control of the construction progress.

[0040] In a preferred embodiment of the present application, the data acquisition and transmission unit comprises: The various sensors are connected, the collected analog signals are converted into digital signals, and the data are transmitted to the monitoring terminal in real time through a wireless transmission module, such as a 4G or 5G communication technology, to ensure the timeliness and stability of data transmission, and the data are not disturbed even in a complex construction site environment.

[0041] In a preferred embodiment of the present application, the monitoring terminal comprises: In terms of hardware, a high-performance processor and a large-capacity storage device are provided for quickly processing massive sensor data and storing the data in categories for subsequent query and analysis.

[0042] In terms of software, visual monitoring software is installed to display the real-time change curve of each parameter in intuitive charts and graphical interfaces, so that the operator can understand at a glance. At the same time, an early warning system is set up to immediately issue an audible and visual alarm when the parameter exceeds the preset threshold, reminding the operator to adjust the construction parameters or check the equipment in time.

[0043] In a preferred embodiment of the present application, the remote diagnosis and maintenance module comprises: It has a remote connection function, and professional technicians can remotely access the monitoring terminal data through the Internet to remotely diagnose the equipment operating condition.

[0044] Combined with historical operation data and fault case library, the fault reason is intelligently analyzed, and corresponding maintenance suggestions are provided to realize rapid fault troubleshooting and repair, effectively shortening the equipment downtime.

[0045] In actual use, the monitoring equipment installation process is as follows: Before the horizontal directional drilling equipment leaves the factory, the various sensors are accurately installed according to the design requirements to ensure good contact between the sensors and the equipment and accurate measurement. The sensors are calibrated and debugged to ensure the accuracy of the initial data.

[0046] The data acquisition and transmission unit is installed, the lines are connected, and the wireless transmission module is debugged to ensure that the data can be stably uploaded to the monitoring terminal.

[0047] The construction monitoring process is as follows: The starting level orientation into the device, the sensor module starts real-time data acquisition, data acquisition and transmission unit synchronous work, the data is digitized and transmitted wirelessly.

[0048] After the monitoring terminal receives the data, the processor quickly processes it, and the visualization software updates the chart interface in real time. The operator pays close attention to the interface and adjusts the operation according to the parameter changes, such as adjusting the mud pump flow according to the drilling speed.

[0049] When the early warning system triggers an alarm, the operator immediately suspends the construction and investigates the problem according to the warning prompt. If it cannot be solved by itself, it contacts remote technical experts for assistance through the remote diagnosis and maintenance module.

[0050] This monitoring device can improve the accuracy of construction: through precise sensor monitoring and real-time data feedback, the operator can fine-tune the construction parameters according to the actual working conditions, ensuring that the drilling trajectory meets the design requirements and effectively improving the accuracy of underground pipeline laying.

[0051] This monitoring device can reduce the failure rate of horizontal directional drilling equipment: real-time monitoring of the operating state of key components can detect wear, overheating, and other hidden faults in advance, allowing for timely maintenance measures to avoid sudden major failures of horizontal directional drilling equipment, extend the service life of horizontal directional drilling equipment, and reduce maintenance costs and downtime.

[0052] This monitoring device can improve construction efficiency: with the help of visual interfaces and intelligent early warning, the operator can operate more conveniently and efficiently, reducing construction delays caused by parameter misjudgments, while the remote diagnosis and maintenance function further shortens the repair cycle of horizontal directional drilling equipment failures, improving overall engineering construction efficiency.

[0053] Advantages of the present invention: The present invention is based on the pipeline construction of the pipe network and supporting municipal infrastructure projects in Baoding City, combined with the characteristics of complex distribution of underground pipelines and busy traffic, as well as actual engineering needs. The horizontal directional drilling construction technology is applied to the construction of underground pipelines under complex conditions, combined with previous research results on horizontal directional drilling construction and construction quality control, forming a horizontal directional drilling construction technology research under complex conditions of municipal pipe network. This technology research can effectively lay pipelines under complex construction conditions, improve construction quality, save costs, and reduce the impact on the surrounding environment during construction. It is expected to be widely used in construction areas with complex distribution of urban underground pipelines, close to building structures, or crossing rivers and railways, etc., achieving certain economic, social, and environmental benefits.

[0054] Example 1 For the research content of this project, according to the construction site environment investigation and analysis, the in-depth discussion and determination of process and method, the selection of construction personnel, the implementation control of higher than relevant standard, the application of auxiliary process and main process, the summary and promotion of technical research, etc. Main route and step are implemented.

[0055] The construction process is as follows: (1) Investigate the actual construction area on site, collect and analyze stratum data; Send a professional geological exploration team, use geological radar, drilling sampling and other means to obtain detailed stratum structure, rock mechanics parameters and other data in the construction area.

[0056] Combined with urban geographic information system (GIS), refer to the information of surrounding existing pipelines, building foundations, etc. To provide data support for avoiding obstacles and optimizing the route of the construction plan.

[0057] (2) According to the actual situation, analyze and compare, set the parameters of horizontal directional drilling; According to the hardness and drillability of different strata, through laboratory simulation drilling test combined with field test drilling, compare the drilling effect under different parameter combinations of drill bit type, rotation speed, thrust force, etc.

[0058] Using big data analysis technology, collect parameter experience values of construction cases of the same type of stratum, optimize and determine the most suitable drilling parameters according to the actual situation of this project, and improve the construction efficiency and quality.

[0059] (3) According to the pipe jacking construction process, gradually implement, pay attention to detail control in the process, solve the corresponding problems; Learn from the mature pipe jacking construction process, strictly follow the standardized operation process in the key steps of guide hole drilling, hole expansion, pipeline back dragging, etc.

[0060] Establish a field quality control team to conduct fine inspection of the key nodes of each process, such as drilling perpendicularity, hole diameter flatness, etc. Timely find and solve the problems in construction, ensure the continuity and stability of construction.

[0061] In actual use, mud is very important in horizontal directional drilling crossing engineering. Mud is generally made of water, bentonite and mud additives, etc. The composition ratio of mud is adjusted according to the actual situation. The functions of mud include carrying drill cuttings, wall protection, lubrication and cooling, etc. In different strata, the configuration of mud is also different, for example, bentonite, soda ash and fluid loss reducer are used in clay layer, while bentonite, anti-sloughing agent, fluid loss reducer and lubricant are used in sand layer and fine sand, pebble, gravel stratum.

[0062] (4) Hire craftsmen and external experts and scholars with rich construction experience to optimize the construction plan; Assemble a team of expert consultants, including experienced technical workers who have been engaged in underground engineering construction for a long time, experts in geotechnical engineering from universities, and senior design engineers in the industry.

[0063] Through regular technical seminars and on-site guidance, the experts' practical experience and theoretical knowledge are fully utilized to optimize the feasibility, safety, and economy of the construction plan.

[0064] (5) Actively communicate with all participating units to determine the implementation plan and participate in the entire construction process.

[0065] Establish efficient communication and coordination mechanisms with the construction unit, design unit, and supervision unit, and regularly organize project promotion meetings to timely feedback on construction progress and problems.

[0066] Based on the opinions of all parties, adjust the construction plan to ensure that it meets the overall requirements of the project and is strictly implemented throughout the construction process to ensure the smooth progress of the project.

[0067] Through the use of this technology, the construction quality of horizontal directional drilling is improved, the construction productivity is increased, and certain economic benefits are achieved.

[0068] Through various studies, the construction quality is improved, and the pipeline construction acceptance rate reaches 100%.

[0069] This invention can demonstrate the company's construction level and strength, and cultivate comprehensive talents in horizontal directional drilling construction technology and quality management.

[0070] The present application adopts horizontal directional drilling technology. It lays pipes underground through drilling and reaming, without the need for large-scale excavation and backfilling, greatly reducing the damage to the environment and the impact on urban traffic. This technology is particularly suitable for pipeline laying in busy urban roads, rivers, and other sensitive areas.

[0071] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A method for horizontal directional drilling construction of municipal underground pipelines, characterized in that: Includes the following steps: S1. Conduct an investigation of the actual construction area on site and collect and analyze geological data; S2. Based on the actual site conditions, analyze and compare, and set various parameters for the horizontal directional drilling equipment; S3. Implement the construction process step by step, following the pipe jacking method. S4. Optimize the construction plan; S5. Determine the implementation plan and participate in the entire construction process; S6. Use monitoring equipment to monitor the horizontal directional drilling equipment in real time.

2. The method for horizontal directional drilling construction of municipal underground pipelines according to claim 1, characterized in that: In step S1, an investigation is conducted on the actual construction area, and geological data is collected and analyzed, including: Before construction, a comprehensive survey of the actual construction area was conducted, including recording the distribution, type and foundation conditions of ground buildings, understanding the surrounding traffic flow and traffic time requirements, and drawing a topographic map. Stratigraphic data is collected through geological exploration, and the lithology, soil type, water content, groundwater level, and possible obstacles of the strata are analyzed to form a stratigraphic report.

3. The method for horizontal directional drilling construction of municipal underground pipelines according to claim 1, characterized in that: In step S2, based on the actual site conditions, analysis and comparison are conducted to set various parameters for the horizontal directional drilling equipment, including: Based on the data obtained from the actual on-site investigation, including the ground hardness, the distribution of underground pipelines, and the precision and depth requirements for the laying of underground pipelines, different combinations of construction parameters were analyzed and compared. Set the drilling speed, torque, mud pressure, and flow rate parameters for the horizontal directional drilling equipment. In hard formations, increase the drilling speed and torque, and reduce the speed when encountering rock layers or obstacles. Adjust the drill bit torque according to the formation resistance. At the same time, adjust the mud pressure and flow rate.

4. The method for horizontal directional drilling construction of municipal underground pipelines according to claim 1, characterized in that: In step S3, the construction process of pipe jacking is carried out step by step, including: First, the construction of the working shaft and receiving shaft will be carried out: The location of the working well should take into account site conditions, pipeline routing, and the ease of access for subsequent equipment. The setting of the receiving well should be highly precise, and it should maintain a precise axis correspondence with the working well. During the drilling process, the direction of the drill bit is controlled, and the azimuth and inclination parameters of the drill bit are monitored in real time using monitoring equipment. If a deviation is found, it is corrected by adjusting the drilling parameters or using a guide correction device to ensure that the pipeline is laid according to the predetermined trajectory. After drilling a set length, mud is applied to the borehole wall to prevent it from collapsing; mud is added as needed based on the formation conditions to maintain pressure balance inside the borehole.

5. A horizontal directional drilling construction method for municipal underground pipelines according to claim 1, characterized in that: In step S4, the construction plan is optimized, including: During construction, monitoring equipment is used to monitor ground settlement, displacement of surrounding buildings, and changes in groundwater level in real time, collect data, and establish a dynamic monitoring database. Based on monitoring data and problems encountered during actual construction, drilling parameters were adjusted, mud formula was improved, or construction sequence was changed.

6. A horizontal directional drilling construction method for municipal underground pipelines according to claim 1, characterized in that: In step S5, the implementation plan is determined, and the entire construction process is participated in, including: Determine the implementation plan, and clarify the responsible persons, time nodes, and quality standards for each construction stage; Construction was carried out in accordance with the implementation plan. Project management personnel participated in the on-site management throughout the process, coordinated the cooperation between various trades, supervised the construction quality, and resolved equipment failures and personnel allocation issues that arose during construction.

7. A horizontal directional drilling construction method for municipal underground pipelines according to claim 1, characterized in that: In step S6, the horizontal directional drilling equipment is monitored in real time using monitoring equipment, including: Sensors are used to collect key parameters of the drilling equipment in real time, including drilling speed, torque, thrust, and drill bit temperature. The collected data is transmitted to the monitoring center via wireless transmission technology, allowing monitoring personnel to monitor the equipment's operating status. If any abnormality is detected, an alarm is issued and corresponding measures are taken. In step S6, the monitoring equipment includes a sensor module, a data acquisition and transmission unit, a monitoring terminal, and a remote diagnostic and maintenance module. The sensor module is installed on the horizontal directional drilling equipment. The input end of the data acquisition and transmission unit is communicatively connected to the sensor module, and the output end of the data acquisition and transmission unit is communicatively connected to the monitoring terminal. The monitoring terminal is also communicatively connected to the remote diagnostic and maintenance module.

8. A horizontal directional drilling construction method for municipal underground pipelines according to claim 7, characterized in that: The sensor module includes a pressure sensor, a torque sensor, and a displacement sensor. The pressure sensor is installed at the drill pipe propulsion system to monitor pressure changes in real time during drill pipe propulsion and provide feedback on drilling resistance. The torque sensor is installed on the power output shaft to measure the torque value when the drill bit rotates, so as to determine the hardness of the formation and the working condition of the drill bit. Displacement sensors are installed at the connection points of the drill pipe. By monitoring the displacement of the drill pipe, the drilling depth and speed are calculated.

9. A horizontal directional drilling construction method for municipal underground pipelines according to claim 7, characterized in that: The data acquisition and transmission unit is used to connect pressure sensors, torque sensors, and displacement sensors, convert the acquired analog signals into digital signals, and transmit the data to the monitoring terminal in real time via a wireless transmission module.

10. A method for horizontal directional drilling construction of municipal underground pipelines according to claim 7, characterized in that: The monitoring terminal includes a hardware structure and a software structure. The hardware structure consists of a processor and a large-capacity storage device, which are used to quickly process massive amounts of sensor data and classify and store the data. The software structure is equipped with visual monitoring software, which is used to display the real-time change curves of various parameters. The software structure also includes an early warning system. When the parameters exceed the preset threshold, the early warning system issues an audible and visual alarm to remind the operator to adjust the construction parameters or check the equipment in time. The remote diagnostics and maintenance module has a remote connection function, which can remotely access monitoring terminal data via the Internet to remotely diagnose the equipment's operating status. By combining historical equipment operating data with a fault case database, the causes of faults are analyzed and maintenance suggestions are provided.

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