Construction method for corrugated pipe to pass through pipeline by means of rail sliders in small underground space

Abstract

A construction method for a corrugated pipe to pass through a pipeline by means of rail sliders in a small underground space. The construction method comprises the following steps: step 1, jacking an

Description

The present invention belongs to the technical field of the pipeline mounting, and particularly relates to a construction method for underground small-space corrugated pipe to penetrate through pipeline through rail tackle. Background Information Pipe jacking construction is a popular underground pipeline construction method at present, a surface layer does not need to be excavated, the noise is far smaller than that of a slotted laying pipeline during construction, the influence on ground settlement is small, and the construction cost is better than that of the slotted laying pipeline under tire condition that the pipeline is buried deeply. At present, some pipelines have inner and outer layers of pipelines with different pipe diameters to form a sleeve to ensure the overall quality of the pipelines. Under some specific conditions, the space between the starting well and the receiving well on the two sides of the jacking pipe is relatively narrow, and it is inconvenient to arrange equipment such as a winch and a jack on a construction site, and due to the fact that a part of internal pipelines are HDPE corrugated pipes, the interfaces are relatively fragile, the winch cannot be adopted for dragging, the pipe wall is relatively thin, the jack cannot be adopted for direct jacking, and the overall construction process is relatively tedious. SUMMARY It is an object of the present invention to provide a construction method for underground smallspace corrugated pipe to penetrate through pipeline through rail tackle, so as to solve at least the problems of difficulty and low efficiency to penetrate through pipeline a pipeline in a small underground construction space. In order to achieve the above object, the present invention provides the following technical solutions: 1. A construction method for underground small-space corrugated pipe to penetrate through 1. A construction method for underground small-space corrugated pipe to penetrate through pipeline through rail tackle, including following steps: Step 1, jacking an outer-layer pipeline, and completing pipe jacking construction of the outerlayer pipeline; Step 2, laying a track inside the outer-layer pipeline; Step 3, manufacturing a plurality of rail tackles according to the size of the laid track; Step 4, uniformly arranging a plurality of rail tackles at the bottom of the corrugated pipe, fixing the rail tackles and the corrugated pipe together, and then placing the rail tackles provided with the corrugated pipe on the track; Step 5, driving the cormgated pipe to penetrates through the outer-layer pipeline; in Step 2, along the extension direction of the outer-layer pipeline, a plurality of square woods are erected in the outer-layer pipeline at equal intervals, and the extension direction of the square woods is perpendicular to the extension direction of the outer-layer pipeline; the tracks are laid on the square woods, and the extension direction of the tracks is parallel to the extension direction of the outer-layer pipeline; the track is made of angle steel, and a pair of angle steel are laid on the square wood in parallel; the sharp comer parts of the angle steel face upwards, and the opening of the angle steel face downward to be buckled on the square wood; two adjacent angle steel are fixed through a steel bars; the rail tackle comprises at least two cross beams and two side supports, the side supports are perpendicular to the cross beams, two sides of the upper portions of a plurality of the cross beams are fixedly connected with the side supports respectively, and the intervals between any two adjacent two cross beams are equal; two pulleys are arranged at the lower portions of the front-most cross beam and the rear-most cross beam in the rail tackle, and the intervals between the two pulleys is equal to the transverse intervals between two adjacent angle steels; the cross beam adopts a square steel pipe, and the width of the square steel pipe along the extension direction of the corrugated pipe is not larger than the extension direction width of the groove in the outer wall of the cormgated pipe and is not smaller than three quarters of the width of the groove; the distance between two adjacent square pipes is not larger than the radius of the corrugated pipe and is not smaller than two thirds of the radius of the corrugated pipe; the pulley is a V-shaped pulley, and the diameter of the V-shaped pulley is not smaller than the width of the square steel pipe and is not larger than two times of the width of the square steel pipe; the height of the angle steel is not smaller than the depth of the V-shaped groove of the V-shaped pulley, and the depth of the angle steel embedded into the V-shaped groove is not smaller than two thirds of the depth of the groove of the V-shaped pulley; using the fixed pulley and the crane to drive the movement of the corrugated pipe; each of the left side and the right side of the outlet of the outer-layer pipeline is provided with a fixed pulley, a circle of flexible binding band is bound at the front of the corrugated pipe, one end of two traction ropes are respectively bound at the middle positions of the left side and the right side of the flexible binding band, the traction ropes on the left side and the right side respectively penetrates through the fixed pulleys on the left side and the right side, the force direction of the traction rope is changed from the horizontal direction to the vertical direction by the fixed pulleys, then the traction ropes on the left side and the right side converge to the lifting hook of the crane, and the lifting hook of the crane drives the traction rope to move in the vertical direction, so as to pull the corrugated pipe to move in the horizontal direction; in Step 4, the corrugated pipe and the rail tackle are fixed together by passing a wire through the interior of the square steel pipe and around the outer wall of the corrugated pipe. Advantageous effects: The use of rail tackle to make the corrugated pipe penetrates through the outer-layer pipeline greatly saves the mounting and commissioning time of the equipment, saves the construction cost, reduces the construction difficulty, improves the construction efficiency and reduces the construction input; it can save the working period and reduce the area of action. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic cross-sectional view of the rail tackle and the corrugated pipe penetrates through the outer-layer pipeline in example 1 of the present invention; Fig. 2 is a schematic view that the corrugated pipe is moved by the fixed pulley and the crane in example 1 of the present invention; Fig. 3 is a plan view of the rail tackle in example 2 of the present invention. In the drawings: 1-outer-layer pipeline, 2-corrugated pipe, 3-square wood, 4-angle steel, 5-V-shaped pulley, 6-cross beam, 7-side support, 8-flexible binding band, 9-fixed pulley, 10-traction rope, 11-crane. DETAILED DESCRIPTION OF EMBODIMENTS According to a specific example of the present invention, as shown in Figs. 1-2, the present disclosure provides a construction method for underground small-space corrugated pipe to penetrate through pipeline through rail tackle, including the following steps: Step 1, jacking the outer-layer pipeline 1, and completing pipe jacking construction of the outerlayer pipeline 1. Step 2, laying a track inside the outer-layer pipeline 1. Specifically, along the extension direction of the outer-layer pipeline 1, a plurality of square woods 3 are erected in the outer-layer pipeline 1 at equal intervals, and the extension direction of the square woods 3 is perpendicular to the extension direction of the outer-layer pipeline 1; the tracks are laid on the square woods 3, and the extension direction of the tracks is parallel to the extension direction of the outer-layer pipeline 1. In this example, before the square wood 3 is laid, a concrete cushion layer can be constructed inside the outer-layer pipeline 1, so that a flat cushion layer plane is formed inside the outer-layer pipeline 1, then the square wood 3 is installed on the cushion layer plane, and a track is laid on the square wood 3, so that the lower part of the square wood 3 is not suspended; it can be ensured that the track can bear a larger acting force, and after the corrugated pipe 2 penetrates through the outerlayer pipeline 1, grouting needs to be performed between the corrugated pipe 2 and the outer-lay er pipeline 1, so that the grouting amount in subsequent grouting construction is reduced, and tire construction efficiency is further improved. The track extends out of the outer-layer pipeline 1 to facilitate placing the rail tackle with the corrugated pipe 2 mounted thereon. The track is laid outside the outer-layer pipeline 1, so that the track pulley provided with the corrugated pipe 2 is placed on the track outside the outer-layer pipeline 1, the outer space of Ure outer-layer pipeline 1 is larger, and the operation is more convenient. The track is made of angle steel 4, and a pair of angle steel 4 are laid on the square wood 3 in parallel; the sharp comer parts of the angle steel 4 face upwards, and the opening of the angle steel 4 face downward to be buckled on the square wood 3; two adjacent angle steel 4 are fixed through the steel bars, the steel bars are arranged above the square wood 3, the steel bars and the square wood 3 are bundled together through iron wires, and due to the fact that the steel bars and the square wood 3 have larger overlapping parts, the track and the square wood 3 can be more firmly fixed. In this example, the two ends of the steel bar are respectively welded to the angle steel on both sides, so that the overall structural strength of the track can be enhanced. In this example, when the diameter of the corrugated pipe 2 is small, the common PE corrugated pipe 2 can be used; when the diameter of the corrugated pipe 2 is large, the corrugated pipe 2 adopts the HDPE steel belt corrugated pipe 2, and the HDPE steel belt corrugated pipe 2 has higher strength. Step 3, manufacturing a plurality' of rail tackles according to the size of the laid track; in this example, the rail tackle comprises a cross beam 6, two pulleys are arranged at the lower part of the cross beam 6, and the distance between the two pulleys is equal to the transverse distance between two adjacent angle steels 4; side supports 7 are fixed on both sides of the upper part of the cross beam 6, the middle part of the side support 7 is fixedly connected with one side of the cross beam 6, the side support 7 is perpendicular to the cross beam 6, and the extending direction of the side support 7 is parallel to the axis of the corrugated pipe 2. In the example 2, as shown in Fig. 2, the rail tackle comprises at least two cross beams 6 and two side supports 7, the side supports 7 are perpendicular to the cross beams 6, two sides of the upper portions of a plurality' of cross beams 6 are fixedly connected with the side supports 7 respectively, and the intervals between any two adjacent two cross beams 6 are equal; two pulleys are arranged at the lower portions of the front-most cross beam 6 and the rear-most cross beam 6 in the rail tackle, and the interval between the two pulleys is equal to the transverse interval between two adjacent angle steels 4. The side support 7 is made of a steel bars. The cross beam 6 adopts a square steel pipe, and the width of the square steel pipe along the extension direction of the corrugated pipe 2 is not larger than the extension direction width of the groove in the outer wall of the corrugated pipe 2 and is not smaller than three quarters of the width of the groove; the distance between two adjacent square pipes is not larger than the radius of the corrugated pipe 2 and is not smaller than two thirds of the radius of the corrugated pipe 2; the pulley is a V-shaped pulley 5, and the diameter of the V-shaped pulley 5 is not smaller than the width of the square steel pipe and is not larger than two times of the width of the square steel pipe; and the height of the angle steel 4 is not smaller than the depth of the V-shaped groove of the V-shaped pulley 5, and the depth of the angle steel 4 embedded into the V-shaped groove is not smaller than two thirds of the depth of the groove of the V-shaped pulley 5. Therefore, tire cross beam 6 can be clamped in the groove in the outer wall of the corrugated pipe 2, so that the relative movement between the corrugated pipe 2 and the track pulley in the extending direction of the corrugated pipe 2 can be limited. Step 4, uniformly arranging a plurality of rail tackles at the bottom of the corrugated pipe 2, fixing the rail tackles and the corrugated pipe 2 together, and then placing the rail tackles provided with the corrugated pipe 2 on the track. In this example, the corrugated pipe 2 and the rail tackle are fixed together by passing a wire through the interior of the square steel pipe and around the outer wall of the corrugated pipe 2. Therefore, the corrugated pipe 2 is better fixed on the rail tackle, and the corrugated pipe 2 is prevented from laterally rolling. Step 5, driving the corrugated pipe 2 to penetrates through the outer-layer pipeline 1 by using the fixed pulley 9 and the crane 11. In this example, each of the left side and the right side of the outlet of the outer-layer pipeline 1 is provided with a fixed pulley 9, a circle of flexible binding band 8 is bound at the front of the corrugated pipe 2, and the flexible binding band 8 does not damage the corrugated pipe 2 while firmly fixing the corrugated pipe 2. one end of the two traction ropes 10 are respectively bound at the middle positions of the left side and the right side of the flexible binding band 8, in this example, the traction ropes 10 use steel wire ropes, the steel wire ropes are wear-resistant and have high strength, and can bear large acting force; the traction ropes 10 on the left side and the right side respectively penetrates through the fixed pulleys 9 on the left side and the right side, the force direction of the traction rope 10 is changed from the horizontal direction to the vertical direction by the fixed pulleys 9, then the traction ropes 10 on the left side and the right side converge to the lifting hook of the crane 11, and the lifting hook of the crane 11 drives the traction rope 10 to move in the vertical direction, so as to pull the corrugated pipe 2 to move in the horizontal direction, and enable the corrugated pipe 2 to penetrates through the outer-layer pipeline 1. In this example, the outer-layer pipeline 1 uses a reinforced concrete pipeline, and the connection between two adjacent reinforced concrete pipelines is a flexible steel bearing socket connection; the corrugated pipe 2 is polyethylene corrugated pipe, and the two adjacent corrugated pipes are connected by hot melting. The length of each corrugated pipe 2 is 10m, the corrugated pipe 2 is crossed and connected in sections, and the next section is connected after the previous section is connected and crossed, so that the construction difficulty is reduced, the construction efficiency is improved, and the construction investment is reduced. After the corrugated pipe 2 penetrates through the outer-layer pipeline 1, two conditions are divided, if the track is recycled, during a water closure test, water is filled between the corrugated pipe 2 and the outer-layer pipeline 1, the corrugated pipe 2 floats, at the moment, the track is recycled, recycling of the track is achieved, and the construction cost is saved. If the track is not recycled, under the condition that the short-distance corrugated pipe 2 penetrates through, the cost of manufacturing the track by using the angle steel is low, and at the moment, the corrugated pipe 2 is erected on the track for subsequent grouting operation, so that the corrugated pipe 2 can be well supported, the corrugated pipe 2 is ensured to be located in the center position in the outer-layer pipeline 1, and subsequent grouting construction is facilitated. In summary', in the technical solution of the construction method for underground small-space corrugated pipe to penetrate through pipeline through rail tackle provided by the present invention, the use of rail tackle to make the corrugated pipe penetrates through the outer-layer pipeline, compared with the construction by winch in the prior art, greatly saves the installation and commissioning time of the equipment, reduces the interference with the surrounding environment, saves the construction cost, reduces the construction difficulty, improves the construction efficiency and reduces the construction input; it can save the working period and reduce the area of action. It will be appreciated that the above description is exemplary' only,the example of the present application do not limit this.

Claims

1. A construction method for underground small-space corrugated pipe to penetrate through pipeline through rail tackle, including following steps:Step 1, jacking an outer-layer pipeline, and completing pipe jacking construction of the outer-layer pipeline;Step 2, laying a track inside the outer-layer pipeline;Step 3, manufacturing a plurality of rail tackles according to the size of the laid track;Step 4, uniformly arranging a plurality of rail tackles at the bottom of the corrugated pipe, fixing the rail tackles and the corrugated pipe together, and then placing the rail tackles provided with the corrugated pipe on the track;Step 5, driving the corrugated pipe to penetrates through the outer-layer pipeline;in Step 2, along the extension direction of the outer-layer pipeline, a plurality of square woods are erected in the outer-layer pipeline at equal intervals, and the extension direction of the square woods is perpendicular to the extension direction of the outer-layer pipeline; the tracks are laid on the square woods, and the extension direction of the tracks is parallel to the extension direction of the outer-layer pipeline;the track is made of angle steel, and a pair of angle steels are laid on the square woods in parallel; the sharp comer parts of the angle steel face upwards, and the opening of the angle steel face downward to be buckled on the square woods;two adjacent angle steels are fixed by steel bars;the rail tackle comprises at least two cross beams and two side supports, the side supports are perpendicular to the cross beams, two sides of the upper portions of a plurality of the cross beams are fixedly connected with the side supports respectively, and the intervals between any two adjacent two cross beams are equal;two pulleys are arranged at a lower portions of a front-most cross beam and a rear-most cross beam in the rail tackle, and the intervals between the two pulleys is equal to the transverse intervals between two adjacent angle steels;the cross beam adopts a square steel pipe, and the width of the square steel pipe along the extension direction of the corrugated pipe is not larger than the extension direction width of agroove in the outer wall of the corrugated pipe and is not smaller than three quarters of the width of the groove;a distance between two adjacent square pipes is not larger than the radius of the corrugated pipe and is not smaller than two thirds of the radius of the corrugated pipe;two pulleys are V-shaped pulley, and the diameter of the V-shaped pulley is not smaller than the width of the square steel pipe and is not larger than two times of the width of the square steel pipe; the height of the angle steel is not smaller than the depth of the V-shaped groove of the V-shaped pulley, and the depth of the angle steel embedded into the V-shaped groove is not smaller than two thirds of the depth of the groove of the V-shaped pulley;using a fixed pulley and a crane to drive the movement of the corrugated pipe;each of the left side and the right side of the outlet of the outer-layer pipeline is provided with a fixed pulley, a circle of flexible binding band is bound at the front of the corrugated pipe, one end of two traction ropes are respectively bound at the middle positions of the left side and the right side of the flexible binding band, the traction ropes on the left side and the right side respectively are penetrated through fixed pulleys on the left side and the right side, the force direction of the traction ropes are changed from horizontal direction to vertical direction by the fixed pulleys, the traction ropes on the left side and the right side are converged to a lifting hook of the crane, and the traction ropes are drove by the lifting hook of the crane to move in the vertical direction, so that the corrugated pipe is pulled to move in the horizontal direction;in Step 4, the corrugated pipe and the rail tackle are fixed together by passing a wire through the interior of the square steel pipe and around the outer wall of the corrugated pipe.

2. The construction method for underground small-space corrugated pipe to penetrate through pipeline through rail tackle according to claim 1, characterized in that, the track extends out of the outer-layer pipeline to facilitate placing the rail tackle with the corrugated pipe mounted thereon.

3. The construction method for underground small-space corrugated pipe to penetrate through pipeline through rail tackle according to claim 1 or 2, characterized in that, the outer-layer pipeline uses a reinforced concrete pipeline, and the connection between two adjacent reinforced concrete pipelines is a flexible steel bearing socket connection;the corrugated pipe is a polyethylene corrugated pipe, and two adjacent corrugated pipes are connected by hot melting.

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