MXPA98000447A - Method for the replacement of pipe enterr - Google Patents

Abstract

The present invention relates to a method for replacing an existing pipe with a replacement pipe, the existing pipe has a first end and a second end, the existing pipe is buried in the ground, the interior surface of the existing pipe initially defines a channel for the replacement pipe, the replacement pipeline has a first end and a second end corresponding to the first and second ends of the existing pipe, the existing pipes and the floor surrounding the existing pipeline comprise solid matter surrounding the radial periphery of the channel of the replacement pipe, and the outer diameter of the replacement pipe is greater than the inner diameter of the existing pipe, the method is characterized in that it comprises the steps of: (A) placing a drilling unit of the type typically used with the system of drilling, the drilling unit has and is capable of driving, pulling, turning and guiding the post For drilling, the drilling post has a first end and a second end, such positioning allows the first end of the drilling post to be driven and guided by the drilling unit in close proximity to the first end of the replacement pipeline. (B) operating the drilling unit to drive and guide the first end of the drilling post in close proximity to the first end of the replacement cover channel, (C) operate the drilling unit to extend the first end of the post of drilling into the first end of the channel of the replacement pipe and through the channel to project from its second end, (D) fixedly attaching the drilling post to a rear reamer to grind and pulverize the existing pipe, the reamer drill The rear end has a guide end and a follower end, the guide end of the rear reamer bit is coupled in a fixed manner with the former end of the drilling post, the rear boring bit has a fixed coupling on its follower end a rotating link means, and the rear reamer has a diameter greater than or equal to the diameter of the replacement pipe; (E) fixedly attached one end of the replacement pipe with the swivel connector half of the rear reamer; (F) operate the drilling unit to rotate and pull the drilling post, which causes the rear reamer to rotate and move laterally Within the second end of the channel of the replacement pipe and through the channel, which causes a portion of solid material surrounding the channel to be ground into pulverized particles, and simultaneously pull the replacement pipe into and through the channel. the replacement pipe

Description

METHOD FOR KL BEMP BLEEDING DB TDBE IA BURIED FIELD OF THE INVENTION This invention relates generally to a method for the replacement of a buried pipe without extraction of the pipeline through surface excavation means. More particularly, the invention relates to a method of grinding an existing pipe which is necessary to replace it in a sprayed waste which is directed and washed through the inner channel of the existing pipeline by means of a lubricating fluid. The grinding of the existing pipe could occur simultaneously with the installation of a replacement pipe whose diameter could be larger than the diameter of the existing pipe. More specifically, the present invention relates to a method of applying a rotational torque and advance force to a rear drilling bit by means of a flexible hole drilling rod connected thereto and located within and through the existing pipeline; The torque and advance force is provided by means of a drilling unit of the type typically used with directional drilling systems, the drilling unit is located at ground level. The advancing force that is provided by the drilling unit pulls the rear drilling bit towards itself and joins laterally to the REF: 26668 replacement pipe through the existing pipeline. The rotational torque applied by the drilling unit to the drilling rod rotates the rear drilling bit, grinding the existing pipe in a pulverized waste.

BACKGROUND OF THE INVENTION The present invention is, in general, applicable to the replacement of sewer cement pipes, concrete pipes, plastic pipes and metal pipes. However, for illustrative purposes, the invention discussed herein applies to the replacement of a sewer cement pipe. A typical sewer pipe is sectioned, each section having an elongated bell at one end and a tapered portion at the other end. The sections of the sewer cement pipe are located end to end, with the tapered end of each joining section at the bell end of the preceding pipe section. Sewer pipes deteriorate over time. The softness of the soil causes the rupture of the sewer cement pipes, and the growth of tree roots in cracked pipes causes additional rupture. Soil collapse could cause seals in pipes to be separated. Sewer pipes that come apart or break up lose their function and are necessarily replaced. It is, therefore, desirable to provide a means for the replacement of sewer cement pipes. A typical method of replacing sewer cement pipes comprises the stages of excavating an orifice according to the length of the pipe to be replaced, discovering the pipe, removing the pipe, and replacing the pipe with a new pipeline. sewerage. However, the streets, structures, and utility lines that are located on a sewer pipe in need of replacement often perform the excavation of the impracticable pipe. It is, however, desirable to provide a means of replacing sewer pipe that does not require disturbances of structures and utilities that lie on a sewer pipeline to be replaced. A method of replacing an existing sewer pipe that is deteriorated without disturbing structures above it is to slide a flexible plastic replacement pipe through the existing pipeline. However, such a method results in the use of a replacement pipe whose cross-sectional area is substantially smaller than that of the existing pipeline., resulting in a reduced transportation capacity. It is often desirable or necessary to increase, rather than reduce, the transportation capacity of the existing pipeline. An increased transportation capacity requires that the diameter of the replacement pipe be greater than the diameter of the existing pipe. It is, however, desirable to provide a method for the replacement of sewer cement pipe with a replacement pipe whose diameter is greater than the diameter of the existing pipe, and without the disturbance of structures thereon. It is known that sewer cement pipes could be replaced on site by means of an actuating or advancing machine, such as a pneumatic hammer or a hydraulic ram.; such machine is axially aligned with one end of the existing pipe. The axial alignment of such machines requires the excavation of an orifice at the end of the existing pipe for installation and operation at the underground level of the machine. The process of excavating the hole in one end of the existing pipeline to be replaced, encapsulating a machine such as a hydraulic ram or a jackhammer inside the hole, installing the machine for operation, removing the machine, and closing of the orifice after the replacement pipe, is an expensive, time-consuming and labor-intensive process. The process also involves danger to staff safety. The underground operation of a pneumatic hammer or a hydraulic ram exposes the operator of the machine to the risk of sinking the walls of the hole. Also, on many occasions, soil water will flow into the hole dug during the operation of a hammer driller or hydraulic ram, creating the need for drainage operations. It is, however, desirable to provide a replacement pipe system where the power of the actuating equipment used in the process is located above the ground.

BL PREVIOUS ART Patent No. 4,925,344 published by Peres Deceased, et al., And Patent No. 4,507,019 published by Thompson are examples of the prior art. Either the Pérez Patent or Thompson patent expose or indicate the novel and beneficial stages and processes of the present invention. In Peres, a hole is dug so that a flared pipe and hammer drilling machine could be located below ground level in axial alignment with the existing pipeline to be replaced. The flared pipe and the hammer drilling machine, by means of a cavity drilling rod, provides an advancing force, and applies a rotational torch to a knurled drill head, which is axially aligned with the pipe to be replaced. Simultaneously, with the grinding of the existing pipe, the sections of the replacement pipe extend into the channel behind the milling head. The flared pipe and the hammer drilling machine are mounted on rails to provide advancement of the hammer drill machine in incremental lengths and to provide recoil upon receiving successive replacement of the pipe sections. The Thompson patent method is similar to Peres in that a drilling and hammer drilling machine is positioned below the floor level in rails in an orifice in axial alignment with the existing pipeline to be replaced. Instead of milling the existing pipeline by using a grinding head, the Thompson method uses a conical expansion section pipe, which is rotated and pushed or extracted through the existing pipeline channel by means of the drilling machine and hammer driller. The passage of the section of the expanded pipe through the existing pipe fractures the existing pipe allowing the pipe to expand.

BRIEF DESCRIPTION OF THE INVENTION A feature of the invention described herein is to provide a novel method for the replacement of sewer pipes or other types of pipes used, where an existing pipe in the ground is at ground level and pulverized on site by means of of a flexible hole drilling rod located within and through the existing pipeline; the drilling rod is broken and buried by means of a drilling unit of a type typically used with directional drilling systems in which the drilling unit is mounted at the floor level; and the drilling rod that has a drill bit attached at its opposite end. The torque and feed force applied by the drilling unit to the drilling rod imparts rotational and lateral movement to the drilling bit through the existing pipeline, grinding, spraying, and removal of the existing pipe, and simultaneously a replacement pipe is placed on the site. It is also a feature of the invention described herein to provide a novel method for the replacement of a pipe in the ground that allows the replacement of the existing pipe with a replacement pipe having a diameter equal to or greater than the diameter of the existing pipe.

It is a further feature of the invention to provide a novel method for the replacement of a pipeline in the ground where structures, streets and utilities in the soil that are on the existing pipeline remain undisturbed. It is another feature of the invention to provide a novel method for the replacement of a pipeline in the ground where excavation below the floor level is not required for the installation and operation of the drive power of the machinery. It is a further feature of the invention to provide a novel method for the replacement of a pipeline in the ground where all the material and spare material of the existing pipeline is pulverized., driven, and washed along the existing pipeline channel, and thus be removed from the channel. It is another additional feature of the invention in the degree or inclination of the existing pipe to be preserved and assembled by the replacement pipe. It is a further feature of this invention to allow pipe replacement operations to be carried out with a manhole, avoiding the need for insertion into a hole in a drill rod. Other objectives and beneficial attributes of the invention described herein will be apparent to those skilled in the art once they have become familiar with the foregoing. The form of the invention described herein is illustrative of the function of the invention in general. The details of this disclosure are not elaborated as limiting the scope of the present invention. The novel aspects of this invention are accompanied through a subsequent drilling operation and removal of the replacement pipe that occurs in one or more passages through the channel of an existing pipeline that have the need to be replaced. To do this, a hole is dug on both sides of the section of the existing pipeline to be replaced. One end of the existing pipe section serves the purpose of insertion of the replacement pipe and the other end serves the purpose of insertion of the drill pipe. Where the existing pipe is inclined, it is preferable that the lower end of the existing pipe serves as the insertion end of the drill rod. Frequently a pipe man maintenance record will be located at one end of the pipe section to be replaced. When a man record is present, the record could take place from the insertion hole of the drilling rod. The existing pipe exposed in the lower part of the holes, or the manhole and manhole in such case could be broken or broken, and a section of it removed allowing for respective insertions of the replacement pipe and the drill rod. The wall of the insert hole replacement pipe that faces the exposed openings of the existing pipe is tilted toward the opening, allowing the replacement pipe to be at floor level to be flexibly bent and brought down to the hole . With the hole or holes excavated, a drilling unit of a type typically used with directional drilling systems is located at the floor level above the existing pipe at a point laterally and removed out of the insertion end of the drilling rod. the existing pipe so that the angle between the floor level and a line extending from the drilling unit to the insertion of the drilling rod is approximately 30 °. The drilling unit is preferably of a type capable of simultaneously applying rotational torque and an advancing and pushing force to a joint successively of the cavity of the drilling rod, and is further capable of developing an assist fluid wherein a liquid is simultaneously pumped. Fluid through the drilling unit into and through the cavity of the drilling rod channel. The drilling rod is preferably capable of guiding electronically through the ground by a steering means such as a steering drill guided by an electronic sensor and steering module fixed to the guide end thereof. With the drilling unit thus located, a drill bit and an electronic guide module are attached to the end of the drill rod and the drill bit and drill rod are driven and guided along a path in and through the ground by the drilling unit. Preferably, the path of the drilling rod is an upwardly concave arc extending from the unit of drilling through the ground with respect to the existing pipeline. Such arcuate passage is guided to cause the end of the drilling rod to become close to the vicinity of the existing pipe and to cause said end to be substantially parallel with the existing pipe. The drill bit is then further actuated and guided substantially parallel with the existing pipeline until it exits the wall of the insertion hole of the drilling rod. Where a man record takes the place of the insertion hole of the drilling rod, an opening is broken or cut through the wall of the man log to allow the drill bit to pass into the man log space. After the drill bit and guide module of the drilling rod that leaves the wall of the hole of insertion of the drilling rod or manhole, as the case could be removed the drill bit and the module. The end of the drilling rod is then plugged, and the drilling rod further extends and guides to enter the exposed opening of the existing pipe. The drilling rod then extends through the length of the section of the existing pipeline to be replaced up to the end of the drilling rod that emerges in the insertion hole of the replacement pipe. Here, the plug is removed from the end of the drilling rod. A rear drilling bit whose outer diameter is larger than the outer diameter of the replacement pipe is then fixedly attached to the end of the drilling rod. A rear drilling bit is preferably conical and has a helical cutting knife fixedly attached to its external surface. The rear drilling bit also preferably has an inner bore chamber which, when the drill is attached to the drilling rod, forms a continuous passage for the flow of the fluid from the inner channel of the drilling rod in the chamber. The rear drill bit also preferably has a plurality of openings forming passages from the inner chamber to the outer surface of the outer drill bit. The rear drilling bit preferably also has a rotary articulation connection means such as a rotary eye fixedly attached to its protective glue for towing a replacement pipe without rotating the replacement pipe. After the rear drilling bit is attached to the drilling rod, the end of a flexible replacement pipe is brought down into the insertion hole of the replacement pipe to join the rear drilling bit. To facilitate such a connection, the replacement pipe is plugged, the plug has a joining means such as a clamp. The plug attaching means is aligned with the rotary joint connecting means of the rear drilling bit, and the rear drilling bit is fixed and rotatably attached to the replacement pipe by a means such as a snap inserted through the clamp and the eye. With the mechanically connected sequence of the replacement pipe, the rear drilling bit, the drilling rod located within and through the existing pipe, and the drilling unit on the site, initiates the subsequent drilling and installation operation of the drilling rig. the replacement pipe. The drilling unit is operated by simultaneously applying a rotational torque and advance force to the drilling rod, causing the rear drilling bit to rotate around the axis of the drilling rod, and causing the drilling bit to move laterally inside and through the channel of the existing pipe, with respect to its insertion end of the drilling rod. Such lateral movement causes the helical knife of the rear drill bit to come into contact with the existing pipe. In such contact, the grinding and pulverization of the existing pipe is carried out. The grinding of the existing pipeline progresses at a speed of 100 feet to 200 feet per hour. While the existing pipeline is at ground level removed from the drilling unit, it is operated to develop a fluid aid. In the assist fluid, a fluid composed of water and a lubricating polymer mixed in a ratio of approximately half a gallon of polymer to 500 gallons of water is pumped into the inner channel of the drill stem., causing the fluid to flow through the drilling rod into the bore of the inner chamber of the rear drilling bit, and causing the fluid to be emitted from the openings in the rear drilling bit. The fluid lubricates the helical knife of the rear drill bit as it grinds the existing pipe. The fluid also lubricates the wall of the last channel of the rear drilling bit reducing the friction between the channel and the replacement pipe. As it could be the case that the fluid also originates pulverized waste from the existing pipe and surrounding soil to flow along the existing pipeline channel with respect to the manhole or manhole of the drilling rod. If the soil around the existing pipe is sandy or composed of poorly compacted soil, the fluid pumped through the drill rod could also contain mixed bentonite in a ratio of approximately 100 lbs. for 500 gallons of water. A fluid mixture of bentonite serves for the additional stabilization function of the earth channel leaving after the elimination of the existing pipe, avoiding collapse or collapse of the channel. As the rear drill bit rotates and moves laterally through the existing pipeline, a feed force is applied to the rotating joint connection means in the protective glue of the rear drill bit; which rotates by pulling on the connecting means of the plug attached to the end of the replacement pipe. Thus, the replacement pipe is started in and through the channel while the milling process progresses. The rear drilling bit, while moving laterally through the existing pipe, acts as a piston, forcing the fluid, pulverized waste from the existing pipe, and soil or sand from the channel wall towards the insertion end of the pipe. drilling of the existing pipeline. The fluid, soil and waste are emitted as a mud from the opening of the existing pipe in the hole or manhole of the insertion of the drilling rod. The mud could then be pumped out of the hole or manually removed to be arranged anywhere. At the completion of the process, the rear drill bit emerges into the manhole or manhole of the drilling rod insertion, followed by the end of the replacement pipe. When the end of the replacement pipe emerges within the manhole or manhole of the drilling rod insert, the operation of the replacement pipe is completed. Typically the replacement pipe is composed of any of several plastic or polymeric materials. Where a non-segmented plastic or polymer replacement pipe is to be installed, the pipeline is placed at ground level along the existing pipeline route with the end of the replacement pipeline that is flexibly lowered downward into the pipeline. of the insertion hole of the replacement pipe to join the rotary articulation connection means of the rear drill bit. Where a replacement pipeline is to be installed, the seals thereof could be fixedly connected by means of solvent welding, or by a temporary internal tensioning means such as a cable extension of the protective glue of the replacement pipe. to its guide end. The fixed connection of segments of a segmented replacement pipe allows such pipe to be drawn into the pipe channel, almost like a non-segmented replacement pipe. The method of the replacement pipe described above is not necessarily carried out through a simple passage of the rear drilling bit through the existing pipeline. While the final step necessarily removes the replacement pipe in and through the channel, any number of passages from the rear drill bit through the existing pipe could be made before the final step. Such additional steps could be used where successively back drilling bits completely grind the existing pipe. Subsequent drilling is not necessarily done in the final step. Provided that the channel of the pipe has been sufficiently widened, an extraction means, preferably a drilling rod extracted by the drilling unit, could extend through the pipe channel and be fixedly attached to the end of the pipe of the pipe. replacement. The replacement pipe is then dragged in and through the channel by the drive means. After a section of the existing pipe is replaced, the hole, or manhole, at the end of the section could facilitate the repetition of the process in the next contiguous section of the existing pipeline to be replaced.

BRIEF DESCRIPTION OF THE DRAWINGS The drawings annexed for this purpose are presented so that the characteristics and objectives of the invention briefly described above can be understood in additional details. Such drawings illustrate only the typical embodiments of the invention and are not interpreted or considered to be limiting in scope. The invention could admit other equally effective modalities.

IN THE DRAWINGS Figure 1 is a sectional view showing the parts above and below floor machines used in the method of this invention. Figure 2 is a partial sectional alternate view in which a man record takes the place of the insertion hole of the drilling rod. Figure 3 represents the rear drilling bit connected to the drilling rod, while in the total grinding process an existing pipe and a replacement pipe are towed simultaneously. Figure 4 is a cross-sectional view of the rear drill bit, the sectional plane is perpendicular to the axis of rotation thereof and intersects the internal chamber thereof.

DETAIL AND DESCRIPTION OF THE PREFERRED MODALITY Figure 1 represents a paved street 5 above an existing sewer pipe 1, buried in the floor 3, this pipe deteriorates and there is a need to replace it. The width of the paved street 5 defines the length and location of the removal segment 10 of the existing pipe 1 to which the method is applied. The inclination or degree of the removal segment 10 is determined, and an insert hole of the drilling rod 15 is dug at its lower end, cutting from one side to the other and exposing the first end of the removal segment 10. Alternatively, referring to to Fig. 2, a sewer pipe with man-holding register 16 could take the place of the insertion hole 15 of the drill rod. Referring to FIG. 1, at the second end of the removal segment 10, on the other side of lane 5, an insertion hole of the replacement pipe is excavated, cutting from one side to the other and exposing the second end of the segment. of removal 10. The wall of the insertion hole 20 of the replacement pipe in front of the opening of the removal segment 10 is tilted away from the opening which allows a flexible replacement pipe 30 to advance downwardly therefrom. A drilling unit 35 of the type typically used with directional drilling systems is positioned at the floor level above the existing pipe 1, at a laterally and exterior point removed from the first end of the removal segment 10 such that the angle between the level of and the line extending from the drilling unit 35 to the first end of the removal segment 10 is about 300. The drilling unit 15 is then operated to drive, drill, and guide a flexible hole drilling rod 40. down through the earth in an arcuate route calculated to cause the end of the drilling rod to enter and traverse the insertion hole of the drilling rod 15. Referring to Fig. 2, wherein a man record 16 takes place from the insertion hole of the drilling rod 15, an opening 17 is broken or cut from one side to the other of the man registration wall 16 to allow l the passage of the drilling rod 40 in an open space of the insertion hole of the drilling rod 15 or the man register 16, the drilling unit 35 is operated to extend the end of the drilling rod 40 into the opening of the first end and of the removal segment 10. Referring again to FIG. 1, during the insertion of the end of the drill rod 40 into the opening of the first end of the removal segment 10, the drilling unit 35 is operated to further increase the drilling rod. 40 through the channel of the removal section 10, causing the end of the drill rod 40 to exit the second end of the removal segment 10 into the insertion hole of the replacement pipe 20. A post drill bit 45 is then fixedly attached to the end of the drill rod 40. Referring to FIG. to Fig. 3, the guide end of the rear drill bit 45 is tapered, having a helical cutting knife at its outer periphery. The rear drilling bit also has a rotary articulation connection means 48 fixedly attached to the protective glue thereof. Referring to FIG. 4, the rear drilling bit has an inner bore chamber 60 whose open space is continuous with a channel of assist fluid 61 which, referring to FIG. 3, falls into the bore 40. Referring to FIG. to Fig. 3 and Fig. 4, the rear drilling bit has a plurality of relief fluid openings 47 for the emission of fluid 62 from the rear drilling bit. Referring to FIG. 1, a flexible replacement pipe composed of a plastic or polymeric material is positioned at the floor level in approximate alignment with the existing pipeline route 1. The end of the replacement pipe 30 is flexibly advanced downwardly into the insertion hole of the replacement pipe 20. Referring to Fig. 3, the replacement pipe has a cap 31 fixedly attached and occlusively sealing the perforation of the replacement pipe 30; the plug 31 having a connecting means 32 adapted for the fixed connection to the rotary articulation connection means 48 of the rear drilling bit 45. Referring to FIG. 1, within the insertion hole of the replacement pipe 20 the end of the the replacement pipe 30 is guided to generate, referring to FIG. 3, the connecting means 32 of the plug 31 to get close to the proximity with the rotary joint connection means 48 of the rear drill bit 45. The medium 32 is then fixedly attached to the rotary joint connecting means 48, such as by means of a clasp 33. Referring to FIG. 1, the perforating unit 35 is then operated to apply a driving force to the drilling rod. 40, which laterally changes the advance of the rear drill bit 45 within the opening of the second end of the removal segment 10. Simultaneously with the application of such force To advance, the drilling unit 35 is operated by applying rotational torque to the drill rod 40 causing it to rotate the rear drilling bit. Referring to FIG. 3, the lateral advancing force and the rotational torque transmitted by means of the drill rod 40 to the rear drill bit 45 causes the helical cutting blade to grind the removal segment 10 in a pulverized waste 48. Simultaneously with the grinding of the removal segment 10, the drilling unit 35 is operated by operating a fluid aid where a fluid 62 preferably composed of water, a lubricating polymer and, optionally, bentonite is pumped through the drilling unit 35 into the fluid. of the end of the drilling rod 40, which is opposite the rear drilling bit 45. Referring to Figures 3 and 4, such pumping causes the fluid 62 to pass through the channel of the assist fluid 61. Then the fluid 62 it emits from the channel of the aid fluid 61 into the bore of the chamber of the drill bit 60. In addition the fluid emits from the opening of the aid fluid 47 within the channel The removal segment 10. Referring to FIG. 3, the fluid 62 emitted from the opening 47 of the assist fluid of the drill bit 45 has the function of lubricating the milling process and lubricating the last earth channel 55 of the drill bit. of back perforation 45, reducing friction in the replacement pipe 30. If the fluid 62 is formed by bentonite, such fluid further has the additional function of stabilizing the earth channel 55, preventing sinking. The fluid 62 further has the additional function of washing the pulverized waste 48 with respect to the first end of the removal segment resulting in the removal of the replacement segment 10 from the channel 55. Referring to Fig. 1 and Fig. 3, the pulverized waste 48 the fluid 62 emitted from the rear drilling bit 45, which is washed down the channel of the removal segment 10 is deposited as a sludge 50 in the floor of the insert hole of the drilling rod 15 or, as the case may be, Referring to Fig. 2, on the floor of the manhole 16. Referring to Fig. 3, the milling operation of the rear drill bit 45 creates a pipeline 55 of a sufficient diameter to allow the replacement pipeline 30 advance through it. The total milling process of the removal segment 10 and simultaneously the removal of the replacement pipe 30 within the channel of the pipe 55 continues until the subsequent drill pipe 45 and the end of the replacement pipe 30 emerge from the pipeline. opening in the first end of the removal segment 10. Once the emergence of the end of the replacement pipe 30 of the opening in the first end of the removal segment 10, the process of replacement pipe for such segment is completed. In view of the above, it is evident that the present invention is a well-adapted invention to obtain all the objectives and characteristics described above, established together with the other objectives and characteristics that are inherent in the method described above. While the foregoing is directed to the preferred embodiment, the scope thereof is determined by means of the following claims.

Claims (18)

1. A method of replacing an existing pipe with a replacement pipe, where the existing pipe has a first end and a second end; the existing pipeline is buried inside the ground; the interior surface of the existing pipe that initially defines a channel of the replacement pipe; the channel of the replacement pipe has a first end and second end corresponding to the first and second ends of the existing pipe; the existing pipe and the surrounding soil contain a solid matter that surrounds the radial periphery of the channel of the replacement pipe; and the outer diameter of the replacement pipe that is greater than the inside diameter of the existing pipe; said method is characterized in that it comprises the steps of: (A) positioning of a drilling unit of the type typically used with directional drilling systems, the drilling unit that has and is capable of driving, drilling, rotating, and guiding a drilling rod, the drilling rod having a first and second end, such positioning allows the first end of the drilling rod to be driven and guided by means of the drilling unit close to the first end of the channel of the replacement pipe; (B) operation of the drilling unit to operate * and guiding the first end of the drilling rod close to the proximity with the first end of the channel of the replacement pipe; (C) operation of the drilling unit for extending the first end of the drilling rod at the first end of the channel of the replacement pipe and through said channel for pushing towards its second end; (D) fixedly attaching to the drilling rod of a rear drilling bit for grinding and spraying the existing pipe, the rear drilling bit having a guiding end and a protective glue, the guiding end of the rear drilling bit that the drill bit is fixedly attached to the first end of the drilling rod, which has a rotary joint connecting means fixed to its protective glue, the rear drilling bit having a diameter greater than or equal to the diameter of the pipe of replacement; (E) fixedly joining one end of the replacement pipe to the rotary joint connecting means of the rear drill bit; (F) Drilling unit operation to rotate and advance the drilling rod, causing the drill bit to rotate and move laterally within the second end of the channel of the replacement pipe and through said channel, causing a The solid matter portion around said channel is ground in a pulverized waste, and simultaneously advancing the replacement pipe in and through the channel of the replacement pipe.

2. A method of replacing an existing pipe with a replacement pipe, wherein the existing pipe has a first end and a second end; the existing pipeline is buried inside the ground; the interior surface of the existing pipe that initially defines a channel of the replacement pipe; the channel of the replacement pipe has a first end and second end corresponding to the first and second ends of the existing pipe; the existing pipe and the surrounding soil contain a solid matter that surrounds the radial periphery of the channel of the replacement pipe; and the outer diameter of the replacement pipe that is greater than that; Inside diameter of the existing pipeline; said method is characterized in that it comprises the steps of: (A) positioning of a drilling unit of the type typically used with directional drilling systems, the drilling unit that has and is capable of driving, drilling, rotating, and guiding a drilling rod, the drilling rod having a first and second end, such positioning allows the first end of the drilling rod to be driven and guided by means of the drilling unit close to the first end of the channel of the replacement pipe.; (B) operation of the drilling unit for driving and guiding the first end of the drilling rod close to the vicinity of the first end of the channel of the replacement pipe; (C) operation of the drilling unit for extending the first end of the drilling rod at the first end of the channel of the replacement pipe and through said channel for pushing towards its second end; (D) development of a series of one or more subsequent drilling operations, each subsequent drilling operation comprising the steps of fixedly attaching to the first end of the drilling rod a subsequent drill bit for grinding and spraying the existing pipe, the drill bit rear drilling having a guide end and a protective glue, the guiding end thereof is attached to the first end of the drilling rod, and the rear drilling bit having a diameter greater than the diameter of the gutter channel of replacement; operation of the drilling unit to advance and rotate the drill rod causing the drill bit to rotate and move laterally in and through the channel of the replacement pipe, causing a portion of solid matter around said channel to be ground in a pulverized waste, causing the subsequent drill bit to emerge from the first end of the replacement pipe channel; detaching the rear drill bit; and operating the drilling unit to extend the first end of the drilling rod into the first end of the channel of the replacement pipe, and through said channel to advance to the second end; the development of said series of subsequent drilling operations causes the channel of the replacement pipe to be widely in increments; (E) fixedly attaching to the ding rod a rear ding bit for grinding and spraying the existing pipe, the rear ding bit having a guiding end and a protective glue, the guiding end of the rear ding bit which is fixedly attaches to the first end of the ding rod, the rear ding bit which has fixedly attached to its protective glue a rotary joint connection means, the rear ding bit having a diameter greater than or equal to the diameter of the pipe of replacement; (F) rigidly attaching one end of the replacement pipe to the rotary joint connecting means of the rear d bit; (G) Ding unit operation to rotate and advance the ding rod, causing the d bit to rotate and move laterally within the second end of the channel of the replacement pipe and through said channel, causing a The solid matter portion around said channel is ground in a pulverized waste, and simultaneously advancing the replacement pipe in and through the channel of the replacement pipe.

3. A method of replacing an existing pipe with a replacement pipe, where the existing pipe has a first end and a second end; the existing pipeline is buried inside the ground; the interior surface of the existing pipe that initially defines a channel of the replacement pipe; the channel of the replacement pipe has a first end and second end corresponding to the first and second ends of the existing pipe; the existing pipe and the surrounding soil contain a solid matter that surrounds the radial periphery of the channel of the replacement pipe; and the outer diameter of the replacement pipe that is greater than the inside diameter of the existing pipe; said method is characterized by the fact that the etaoas of: (A) Positioning of a ding unit of the type typically used with directional ding systems, the ding unit that has and is capable of driving, ding, rotating, and guiding a ding rod, the ding rod having a first and second end, such positioning allows the first end of the ding rod to be driven and guided by means of the ding unit close to the first end of the channel of the replacement pipe; (B) operation of the ding unit for driving and guiding the first end of the ding rod close to the vicinity of the first end of the channel of the replacement pipe; (C) development of a series of one or more subsequent ding operations, each subsequent ding operation comprising the operation stages of the ding unit to extend the first end of the ding rod into the first end of the existing pipeline , and through said channel to advance to its second end; fixedly attaching to the ding rod a rear ding bit for grinding and spraying the existing pipe, the rear ding bit having a guiding end and a protective glue, the guiding end of the rear ding bit which is fixedly attached to the first end of the ding rod, the rear ding bit having a diameter greater than the diameter of the channel of the replacement pipe; operation of the ding unit to advance and rotate the d rod, causing the d bit to rotate and move laterally in and through the channel of the replacement pipe, causing a portion of solid matter around said channel to grindstone into a pulverized waste, causing the subsequent d bit to emerge from the first end of the replacement pipeline; detaching the rear drill bit; the development of said series of subsequent drilling operations is terminated when the diameter of the channel of the replacement pipe is greater than or equal to the diameter of the replacement pipe; (D) extending an advancing means into the first end of the channel of the replacement pipe and through said channel to advance to its second end; (E) firmly attaching said advancing means to one end of the replacement pipe; and, (F) advancing the replacement pipe by said advancing means into and through the channel of the replacement pipe.

4. The method of Claim 3, characterized in that the step of extending the advancing means comprises the operation of the drilling unit for extending a drilling rod into the channel of the replacement pipe, and wherein the advancing step of the replacement pipe comprises the operation of the drilling unit to advance the replacement pipe in and through the channel of the replacement pipe.

5. The method of Claim No. 1, Claim No. 2, Claim No. 3, characterized in that the drilling rod has a channel of assist fluid therethrough, the channel of the assist fluid has a first and second end which corresponds to the first and second ends of the drilling rod; wherein further the drilling unit is capable of developing a fluid aid, wherein a fluid is pumped by the drilling unit into the second end of the channel of the assist fluid; wherein at least one rear drilling bit used inside has a hole in the inner chamber of the rear drilling bit which forms a continuous passage for the flow of fluid from the channel of the assist fluid into the chamber of the rear drilling bit, each of the rear drilling bits has a plurality of fluid openings to aid in the emission of fluid from the chamber of the subsequent drill bit into the channel of the replacement pipe; and further comprises the operation step of the drilling unit to develop a relief fluid, causing the flow of the fluid to flow through the channel of the assist fluid, into the chamber of the subsequent drill bit, and to emit from opening the assist fluid, thereby lubricating the rear drilling bit and the channel wall of the replacement pipe, and washing the sprayed waste with respect to the first end of the channel of the replacement pipe; said aid fluid is developed during at least one step of the subsequent drill bit through the channel of the replacement pipe.

6. The method of Claim 5, characterized in that it further comprises the step of adding a lubricating polymer to the fluid before the operation of the drilling unit to develop the assist fluid.

7. The method of Claim No. 6, characterized in that it further comprises the step of adding bentonite to the fluid before the operation of the drilling unit to develop the assist fluid.

8. The method of Claim No. 1, Claim No. 2, or Claim No. 3, characterized in that the step of securely attaching the rear drill bit further comprises the selection and joining of a subsequent drill bit further having a cutting knife. Helical fixed to its outer periphery.

9. The method of Claim No. 1, Claim No. 2, or Claim No. 3, characterized in that it further comprises the step of fixedly attaching a plug to the end of the replacement pipe that is advanced into the second end of the pipe channel of replacement, the plug has a connection means fixedly attached thereto by which the plug and the attached replacement pipe could advance into and through the channel of the replacement pipe, said step being carried out before the pipe advance step of replacement through the pipe channel.

10. A method of replacing an existing pipe with a replacement pipe, characterized in that the existing pipe has a first end and a second end; the existing pipeline is buried inside the ground; the interior surface of the existing pipe that initially defines a channel of the replacement pipe; the channel of the replacement pipe has a first end and second end corresponding to the first and second ends of the existing pipe; the existing pipe and the surrounding soil contain a solid matter that surrounds the radial periphery of the channel of the replacement pipe; and the outside diameter of the pipeline Replacement that is greater than the inside diameter of the existing pipeline; said method is characterized in that it comprises the steps of: (A) positioning of a driving means of the drilling rod capable of driving, advancing, and rotating a drilling rod, the drilling rod having a first and second end, such positioning allows the first end of the drilling rod to be driven and guided by means of the drilling unit close to the vicinity of the first end of the channel of the replacement pipe; (B) operation of a driving means of the drilling unit to further drive the drilling rod near the vicinity of the first end of the channel of the replacement pipe; (C) operation of a driving means of the drilling unit to further drive the first end of the drilling rod into the first end of the channel of the replacement pipe and through said channel to push towards its second end; (D) fixedly attaching to the drilling rod a rear drilling bit for grinding and spraying the existing pipe, the rear drilling bit having a guiding end and a protective glue, the guiding end of the rear drilling bit which is fixedly attaches to the first end of the drilling rod, the rear drilling bit having fixedly attached to its protective glue a rotating joint connecting means, the rear drilling bit having a diameter greater than or equal to the diameter of the replacement pipe; (E) fixedly attaching one end of the replacement pipe to the rotary joint connection means of the rear drill bit; (F) operation of a driving means of the drilling unit to rotate and advance the drilling rod, causing the drill bit to rotate and move laterally within the second end of the channel of the replacement pipe and through said channel, causing a portion of solid matter around said channel to be ground in a pulverized waste, and simultaneously advancing the replacement pipe in and through the channel of the replacement pipe.

ll. A method of replacing an existing pipe with a replacement pipe, wherein the existing pipe has a first end and a second end; the existing pipeline is buried inside the ground; the interior surface of the existing pipe that initially defines a channel of the replacement pipe; the channel of the replacement pipe has a first end and second end corresponding to the first and second ends of the existing pipe; the existing pipe and the surrounding soil contain a solid matter that surrounds the radial periphery of the channel of the replacement pipe; and the outer diameter of the replacement pipe that is greater than the inside diameter of the existing pipe; said method is characterized in that it comprises the steps of: (A) positioning of a driving means of the drilling rod, the driving means of the drilling rod is capable of driving, drilling, rotating, and guiding a drilling rod, the drilling rod having a first and second end, such positioning allows the first end of the drilling rod to be driven and guided by means of the drilling unit close to the first end of the channel of the replacement pipe; (B) operation of the driving means of the drilling rod for driving and guiding the first end of the drilling rod close to the vicinity of the first end of the channel of the replacement pipe; (C) operation of the driving means of the drilling rod to drive the first end of the drilling rod into the first end of the channel of the replacement pipe and through said channel to push towards its second end; (D) development of a series of one or more subsequent drilling operations, each subsequent drilling operation comprising the steps of fixedly attaching to the first end of the drilling rod a subsequent drill bit for grinding and spraying the existing pipe, the drill bit rear drilling having a guide end and a protective glue, the guiding end thereof is attached to the first end of the drilling rod, and the rear drilling bit having a diameter greater than the diameter of the gutter channel of replacement; operation of the drilling unit to advance and rotate the drill rod causing the drill bit to rotate and move laterally in and through the channel of the replacement pipe, causing a portion of solid matter around said channel to be ground in a pulverized waste, causing the subsequent drill bit to emerge from the first end of the replacement pipe channel; detaching the rear drill bit; and operating the drilling unit to extend the first end of the drilling rod into the first end of the channel of the replacement pipe, and through said channel to advance to the second end; the development of said series of subsequent drilling operations causes the channel of the replacement pipe to be widely in increments; (E) fixedly attaching to the drilling rod a rear drilling bit for grinding and spraying the existing pipe, the rear drilling bit having a guiding end and a protective glue, the guiding end of the rear drilling bit which is fixedly attaches to the first end of the drilling rod, the rear drilling bit which has fixedly attached to its protective glue a rotary joint connection means, the rear drilling bit having a diameter greater than or equal to the diameter of the pipe of replacement; (F) rigidly attaching one end of the replacement pipe to the rotary joint connecting means of the rear drill bit; (G) Drilling unit operation to rotate and advance the drilling rod, causing the drill bit to rotate and move laterally within the second end of the channel of the replacement pipe and through said channel, causing a The solid matter portion around said channel is ground in a pulverized waste, and simultaneously advancing the replacement pipe in and through the channel of the replacement pipe.

12. A method of replacing an existing pipe with a replacement pipe, wherein the existing pipe has a first end and a second end; the existing pipeline is buried inside the ground; the interior surface of the existing pipe that initially defines a channel of the replacement pipe; the channel of the replacement pipe has a first end and second end corresponding to the first and second ends of the existing pipe; the existing pipe and the surrounding soil contain a solid matter that surrounds the radial periphery of the channel of the replacement pipe; and the outer diameter of the replacement pipe that is greater than the inside diameter of the existing pipe; said method is characterized in that it comprises the steps of: (A) positioning of a driving means of a drilling rod, the driving means of the drilling rod that is capable of driving, drilling, rotating, and guiding a drilling rod, the drilling rod having a first and second At the end, such positioning allows the first end of the drilling rod to be driven and guided by means of the drilling unit close to the first end of the channel of the replacement pipe.; (B) operation of the driving means of the drilling rod for driving and guiding the first end of the drilling rod close to the vicinity of the first end of the channel of the replacement pipe; «(C) development of a series of one or more subsequent drilling operations, each subsequent drilling operation comprising the operation stages of the drilling unit for extending the first end of the drilling rod into the first end of the pipe channel existing, and through said channel to advance to its second end; fixedly attaching to the drilling rod a rear drilling bit for grinding and spraying the existing pipe, the rear drilling bit having a guiding end and a protective glue, the guiding end of the rear drilling bit which is fixedly attached to the first end of the drilling rod, the rear drilling bit having a diameter greater than the diameter of the channel of the replacement pipe; operation of the drilling unit to advance and rotate the drill rod, causing the drill bit to rotate and move laterally in and through the channel of the replacement pipe, causing a portion of solid matter around said channel to grinding wheel in a pulverized waste, causing the subsequent drill bit to emerge from the first end of the replacement pipe channel; detaching the rear drill bit; the development of said series of subsequent drilling operations is terminated when the diameter of the channel of the replacement pipe is greater than or equal to the diameter of the replacement pipe; (D) extending an advancing means into the first end of the channel of the replacement pipe and through said channel to advance to its second end; (E) firmly attaching said advancing means to one end of the replacement pipe; and, (F) advancing the replacement pipe by said advancing means into and through the channel of the replacement pipe.

13. The method of Claim No. 12, characterized in that the step of extending the advancing means comprises the operation of the drilling unit for extending a drilling rod into the channel of the replacement pipe, and wherein the advancing step of the replacement pipe comprises the operation of the drilling unit to advance the replacement pipe in and through the channel of the replacement pipe.

14. The method of Claim No. 10, Claim No. 11, or Claim No. 12, characterized in that the drilling rod has a channel of fluid aid through it, the channel of the fluid aid has a first and second end corresponding to the first and second ends of the drilling rod; wherein further the drilling unit is capable of developing a fluid aid, wherein a fluid is pumped by the drilling unit into the second end of the channel of the assist fluid; wherein at least one rear drilling bit used inside has a hole in the inner chamber of the rear drilling bit which forms a continuous passage for the flow of fluid from the channel of the assist fluid into the chamber of the rear drilling bit, each of the rear drilling bits has a plurality of fluid openings to aid in the emission of fluid from the chamber of the subsequent drill bit into the channel of the replacement pipe; and further comprises the operation step of the drilling unit to develop a relief fluid, causing the flow of the fluid to flow through the channel of the assist fluid, into the chamber of the subsequent drill bit, and to emit from opening the assist fluid, thereby lubricating the rear drilling bit and the channel wall of the replacement pipe, and washing the sprayed waste with respect to the first end of the channel of the replacement pipe; said aid fluid is developed during at least one step of the subsequent drill bit through the channel of the replacement pipe.

15. The method of Claim No. 14, characterized in that it further comprises the step of adding a lubricating polymer to the fluid before the operation of the drilling unit to develop the assist fluid.

16. The method of Claim No. 15, characterized in that it further comprises the step of adding bentonite to the fluid before the operation of the drilling unit to develop the assist fluid.

17. 'The method of Claim No. 10, Claim No. 11, or Claim No. 12, characterized in that the step of securely attaching the rear drill bit further comprises the selection and joining of a rear drill bit further having a helical cutting knife fixedly attached to its outer periphery.

18. The method of Claim No. 10, Claim No. 11, or Claim No. 12, characterized in that it further comprises the step of fixedly attaching a plug to the end of the replacement pipe that is advanced into the second end of the pipe channel of replacement, the plug has a means of attachment fixedly attached thereto by which the cap and the pipe of * United replacement could advance in and through the channel of the replacement pipe, said step being made before the advance step of the replacement pipe through the pipe channel.