Method of trenchless laying of underground utilities and device for its implementation

 

The invention relates to the technology of construction and devices designed for trenchless laying of underground utilities. The method consists of driving a pipe into the ground at the desired length, locking focus and removing soil from the pipe under the action tells her shock. The hammer on pipe length required in sandy loam soil plots in length not more than 9, and in the clay not more than 7 internal diameters. It separat focus, remove the soil from the first pipe section provide her a shock, stop shock on the tube and disconnect the emphasis from the pipe after driving each plot. The device includes a tube, a percussion mechanism, attached to the pipe wall with Windows to remove soil from the pipe, and emphasis. The pipe is provided with a conical tip, the inner diameter of which is less than the internal diameter of the pipe, and external - more than its outer diameter. Emphasis includes a housing, a base plate and located between the spring, for example disc, and placed on the tube is movable with the possibility rigid connection with her. The invention provides for increasing the speed of driving and the efficiency of removal of soil from the pipe by reducing the resistance introduced which relates to the technology of construction and devices, designed for trenchless laying of underground utilities.

The known method of trenchless laying of underground utilities on author. St. USSR №1120069, CL E 02 F 5/18, publ. in BI No. 39, 1984, by which the tube is immersed in the soil then extract from it the soil with suction head; it is, after filling the suction head; it continues its movement along the pipe, passing the soil through it, and then pull in the opposite direction, the conveying of the pipe in the ground in the path of movement of suction head; it.

The known method has some weaknesses: poor performance of removal of soil from the pipe, the presence of a large number of non-mechanized operations for mounting and Dismounting of impact mechanisms of the pipe and the suction head; it is, numerous connections and disconnections shock mechanisms to the compressor, manual unloading of soil suction head; it is in the low speed underground.

The closest in technical essence and the achieved effect is a method of trenchless laying of underground communication for ed. St. USSR №802464, CL E 02 F 5/18, publ. in BI No. 5, 1981, by driving a pipe into the ground well shock at her stop, pipe separat and then resume her shock.

The disadvantage of this method is that the pipe separat after driving it on the desired, i.e., according to the description, claims and Fig.2, 3 on its full length. It is known that in the process of clogging in the tube cavity comes from an array of ground more than out of it. The pipe is formed earth core, which provides resistance to immersion pipe due to friction about its walls and backwater from the array the greater, the longer the core. When the core length more than 9 internal pipe diameters of the intensity of the removal of soil from it and the speed dives sharply reduced. The method does not apply when laying communications in clay soils and, if necessary, driving long pipes.

Known groundsamine device for cleaning pipes on author. St. No. 1120069, CL E 02 F 5/18, publ. in BI No. 39, 1984, containing the tubular container and coupled with her striking mechanism for immersing it into the ground, with a capacity on the part of the receiving soil is equipped with freely-rotating, overlapping its flap, and the percussion mechanism fixed to the inner side of the tank.

The disadvantages of the known suction head; it is manifest who eat it freely-rotatable damper and shock mechanism; the eruption of soil from the container while leaving the pipe, so as to freely swivel flap closes capacity only after part of the soil will come out of it, which leads to a low rate of clogging of pipes and partial purification from soil.

The closest in technical essence and the achieved effect is a device on the bus. St. USSR №802464, CL E 02 F 5/18, publ. in BI No. 5, 1981, including a percussion mechanism attached to the rear end of the laid pipe through the wall, with a window to remove soil from the pipe, and a stop for locking the pipe is placed in the exit pit or mounted on the outside of the pipe near its rear end.

The disadvantages of these units are slow introduction pipe and the efficiency of removal of soil from her as increasing the length of the embedded part of the tube into the soil; large friction force of the pipe on the ground, due to the fact that the soil in front of the front end face of the pipe wall, is pressed into the array is compacted and tightly to the outer and inner surfaces. The device is not used when laying the long pipe.

The technical objective of the proposed solutions is to increase the speed of driving and the effectiveness of the parts as driving into the ground.

The problem is solved in that in the method of trenchless laying of underground utilities, consisting in driving a pipe into the ground at the desired length, locking focus and removing soil from the pipe under the action tells her shock, according to the technical solution of the hammer on pipe length required in sandy loam soil plots in length not more than 9, and in the clay not more than 7, its inner diameter, while its separat focus, remove the soil from the first pipe section provide her a shock, stop shock on the tube and disconnect the emphasis from the pipe after driving each pipe section.

Clogging pipes in sandy loam soil plots in length not more than 9, and in the clay not more than 7 internal diameters eliminates the formation in it of compacted soil tubes, decreases the weight of the soil in the pipe, which reduces the resistance to the introduction of it into the soil and increases the removal efficiency of ground strikes.

In the device for the trenchless laying of underground utilities, including trumpet, percussion mechanism attached to the pipe wall with Windows to remove soil from the pipe and the emphasis, according to the technical solution, the pipe is provided with a conical tip, the inner diameter of the casing, the support plate and located between the spring, for example disc, and placed on the tube is movable with the possibility rigid connection with her.

The supply pipe tapered tip, the inner diameter of which is less than the internal diameter of the pipe, and the outer more than its outer diameter, allows the formation of gaps between the outer and inner surfaces of the pipe and the soil and thus reduce the friction of the pipe on the ground, which increases the speed of the pipe and the efficiency of removal of soil from her. In addition, the education gap on the outer surface of the pipe through soil compaction increases the resistance of the borehole walls.

A jammed pipe fence, containing the spring, makes the system shock mechanism - pipe - emphasis with spring - ground” in oscillatory similar to the shock-and-vibration conveyor. When you hit the pipe, the soil within it, slips in the direction of discharge, and after the stroke under the action of elasticity of the soil and the spring moves together with the tube. A jammed pipe fence with spring increases the efficiency of the unloading of the soil.

Remove soil from the pipe parts for higher speed driving and the effectiveness of its treatment, as the ground fills the pipe Palestine discharge under the action of shock-shock mechanism and provides less resistance to clogging pipes in the ground.

The essence of the proposed method and device for trenchless laying of underground utilities is illustrated by the example of a specific implementation and drawings, in which Fig.1 shows the operation for driving the first pipe section with simultaneous partial removal of soil from her; Fig.2 - the operation of the locking tube stop and remove ground strokes from the first scored portion of the pipe; Fig.3 is an operation for driving the second pipe section and simultaneous partial removal of soil from her; Fig.4 - the operation of the locking tube stop and removal of the substrate from the second scored section.

The device for implementing the method of laying underground utilities shown in Fig.1 in longitudinal section with the designation of all its elements.

Method of trenchless laying of underground utilities is as follows.

The pipe 1 is installed with the possibility of axial movement by a stop consisting of a body 2 with bolts 3 for rigid connection with the pipe 1, a base plate 4, plate springs 5 and joined to the pipe by means of the tip 6 of the percussion mechanism 7 is placed in the sump 8. Then include the percussion mechanism 7 and score the first section of pipe in clayey soils on the length of bolesti pipe 1 and under the action of shock moves on her and partially removed through the window 10 of the head 6.

After the pipe 1 hammered into the ground on the length of the initial segment (Fig.1), disable the percussion mechanism 7, connect the stop (POS.2-5, Fig.1) by bolts 3 motionless with the pipe 1, include the percussion mechanism 7. When the percussion mechanism 7 plate 4 emphasis is initially in contact with the wall of the pit 8 (Fig.2), then stops the pipe 1, which is under the influence of shocks and springs 5 varies on location: the blow pipe 1 with a large acceleration is moved forward, providing the slippage into the ground 9 to the discharge end, and gently returned together with the remaining soil 9 back under the action of elasticity of the soil in the array and springs 5. So is cleaning the pipe 1 from the ground 9 without moving the pipe 1 in the array.

During the driving of the second pipe section 1 (Fig.3) and all subsequent off the percussion mechanism 7, disconnect the stop (POS.2-5) from the pipe 1, include in the percussion mechanism 7 and at the end of the clogging of the pipe 1 to the length of the second segment repeat all the operations required for locking the pipe 1 and its purification from soil 9 without moving forward (Fig.4).

After the tube 1 filled its entire length, it separat and cleaned from soil 9 percussion mechanism 7.

The device (Fig.1) for osushestvlenie pipe 1, and external - more than its outer diameter, the percussion mechanism 7 attached to the pipe 1 by a cap 6 having a window 10 for removal of the substrate 9 from it, the rest consisting of a body 2, a base plate 4, the spring 5, for example disc, and bolts 3, with emphasis placed on the pipe 1 is movable with the possibility rigid connection with it by the bolts 3.

The device operates as follows.

Pipe 1 installed on it stop (POS.2-5) and is joined by percussion mechanism 7 is placed in the sump 8, include in the percussion mechanism 7 and clog the pipe 1 into the soil to a length of the first section. The resulting gaps 12 between the ground and the outer surface of the pipe 1, as well as between soil 9 in the tube 1 and its inner surface to provide friction reduction pipe 1 on the ground and, consequently, allow you to increase the speed of installation of underground communication and efficient cleaning of the pipe from the ground 9. Then turn off the percussion mechanism 7, is fixed by bolts 3 stops on the tube 1 includes a percussion mechanism 7 and without moving the pipe 1 forward remove soil 9 of her through the window 10 in headroom 6.

In this case, thanks to the beats of the percussion mechanism 7 is achieved partial destruction of the soil core in the pipe 1 and a significant reduction in resistance eechaute percussion mechanism 7 and beat her with simultaneous partial purification from soil 9 on the length of the next segment. Next, the above-described operation is repeated until the end of the pipe 1 at its full length.

Claims

1. Method of trenchless laying of underground utilities, consisting in driving a pipe into the ground at the desired length, locking focus and removing soil from the pipe under the action tells her shock, characterized in that the hammer on pipe length required in sandy loam soil plots no longer than 9, and in the clay not more than 7, its inner diameter, while its separat focus, remove the soil from the first pipe section provide her a shock, stop shock on the tube and disconnect the emphasis from the pipe after driving each plot.

2. A device for the trenchless laying of underground utilities, including trumpet, percussion mechanism attached to the pipe wall with Windows to remove soil from the pipe, and a stop, wherein the pipe is provided with a conical tip, the inner diameter of which is less than the internal diameter of the pipe, and the outer more than its outer diameter, with an emphasis includes a housing, a base plate and located between the spring, for example, plate and placed on the tube is movable with the possibility USTC

 

Same patents:

The invention relates to the mining and construction industries, and in particular to a pneumatic impact device for driving into the ground rod elements, such as pipes, and can find application also in other industries that require shock

The invention relates to construction and is used in the construction of underwater pipelines

The invention relates to the construction and used for the construction and operation of pipelines in flooded areas and swamps, in cases where it is necessary to reduce the positive buoyancy extended cylindrical bodies

The invention relates to the construction and used for the construction of pipelines on the slopes, the construction of FOCL passages of pipelines during construction of roads and waterworks

The invention relates to construction and is used in the construction and repair of underground pipelines for their fastening on the project marks

The invention relates to construction and is used for laying pipelines in deep marshes with uneven thickness of the peat layer

The invention relates to the construction and used in the repair and replacement of pipelines

The invention relates to the construction and use pipeline ballasting

The invention relates to the construction and used for the construction of underground pipelines

The invention relates to the construction and used for the construction and operation of pipelines when it is necessary to reduce the positive buoyancy extended cylindrical bodies

The invention relates to the field of engineering, namely, hydraulic drum machines with adjustable impact parameters, which can be used, for example, for driving metal pipes in trenchless laying of engineering communications

The invention relates to the field of mining and construction, in particular to a device for the formation of wells in the ground, and can be used in the construction of engineering communications under obstacles trenchless

The invention relates to installations for trenchless laying of pipes in the ground through artificial and natural obstacles with the use of the borehole expanders

The invention relates to construction equipment, in particular to a reversible pneumatic devices impact for the formation of wells in the ground when laying underground utilities

The invention relates to drilling and can be used for communications by drilling wells

The invention relates to drilling technology under natural or artificial obstacles

The invention relates to the construction mainly of pile foundations, also to a device for the formation of holes in the soil under the embankment to skip pipelines

Groundsamine device // 2209890
The invention relates to construction equipment and can be used in trenchless pipeline

The invention relates to the field of engineering, namely, hydraulic drum machines with adjustable impact parameters, which can be used, for example, for driving metal pipes in trenchless laying of engineering communications
Up!