CN103527850A - Non-excavation construction system for ultra-large-aperture PE drain pipes - Google Patents
Non-excavation construction system for ultra-large-aperture PE drain pipes Download PDFInfo
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- CN103527850A CN103527850A CN201310536240.9A CN201310536240A CN103527850A CN 103527850 A CN103527850 A CN 103527850A CN 201310536240 A CN201310536240 A CN 201310536240A CN 103527850 A CN103527850 A CN 103527850A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/024—Laying or reclaiming pipes on land, e.g. above the ground
- F16L1/028—Laying or reclaiming pipes on land, e.g. above the ground in the ground
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/024—Laying or reclaiming pipes on land, e.g. above the ground
- F16L1/028—Laying or reclaiming pipes on land, e.g. above the ground in the ground
- F16L1/036—Laying or reclaiming pipes on land, e.g. above the ground in the ground the pipes being composed of sections of short length
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Abstract
The invention relates to a non-excavation construction system for ultra-large-aperture PE drain pipes. The non-excavation construction system for the ultra-large-aperture PE drain pipes solves the problem that the non-excavation construction difficulty of an existing ultra-large-aperture PE pipe is high. The non-excavation construction system for the ultra-large-aperture PE drain pipes comprises a non-excavation directional drilling machine which is used for drilling an inclined hole obliquely downwards and then drilling a flat and straight hole horizontally and an excavation device which is used for excavating a first construction pit which is vertically arranged and a second construction pit which is vertically arranged. A winch is installed inside the first construction pit, a hoisting device used for placing PE pipe bodies is arranged above the second construction pit, all the PE pipe bodies are in butt joint through a hot melting butt joint device, a traction head is connected to a traction rope of the winch, a grouting mechanism is arranged on the second construction pit and the system further comprises a vibrator. The non-excavation construction system for the ultra-large-aperture PE drain pipes has the advantages that the structure is simple, the traction difficulty of the ultra-large-aperture PE pipe bodies is low, the excavated construction pits are small, the pipe bodies are not prone to breakage during dragging and pulling, the pipe bodies are not prone to being scratched, the pipe bodies are strong in sealing performance, the inner portions of the pipe bodies do not need to be cleaned, the pipe bodies are firm in butt joint and the construction period is short.
Description
Technical field
The invention belongs to pipe laying technical field, especially relate to a kind of non-excavating construction system of ultra-large caliber PE waste pipe.
Background technique
Along with China " 12 ". more and more accelerate " 13 " firmly the portion of building planning and Urbanization Construction, and due to the startup of China's " rain dirty shunting " engineering, solve the planning implementation of " city waterlogging ", super large caliber pipe network, be that the tubing that bore surpasses 1600mm is laid more and more, existing pipe laying method roughly has following several: digging laying, non-digging drag are laid, push pipe is laid, immersed tube is laid, liner is laid, public ditch is laid etc., although have above-mentioned multiple laying method, also can not meet the needs of the current national economic development.For example some special occasion, was passable anything but by excavation construction method while wanting some special buildings such as a viaduct, railway, expressway as the pipe network that surpasses the super large caliber of 2 rice diameters.But the pipe network that adopts existing trenchless technology to lay super large caliber can not be realized, because non-digging drag construction has it specifically to require: i.e. the caliber of hauling construction, largest domestic can only be in DN1200mm tubing, this because of tubing in work progress to pass by one complete " S " curved, first is curved is that tubing enters " construction hole " and to coming second oppositely curved at 180 ° of opposite directions construction hole, enters in the hole of having bored and could draw at once from ground.When DN1200mm tubing hauling construction, that construction hole will have been dug very long very longly, otherwise, when second is curved, just do not enter in hole, if the pipeline that will lay is that bore surpasses 1600mm and according to said method difficulty of construction is too large to more bigbore PE waste pipe.
The problem existing in order to solve prior art, people have carried out long-term exploration, have proposed solution miscellaneous.For example, Chinese patent literature discloses a kind of trombone slide installation method [application number: 200910048811.8] of bypass pipeline, carry out successively as follows: pipe alignment → excavation guide channel → making pipeline → top conduit → connect wire rope → pull catheter and wire rope → help pull a cart and manage → wear engineering pipe and install, it is characterized in that: during the conduit of top, with pressing device by dummy pipe jacking, then jacking rear tube, while helping pull a cart pipe, connecting duct and sleeve pipe, pull simultaneously jacking rear sleeve of dummy pipe, until anterior cannula when passing in another side guide channel only.
Such scheme has solved the problem of existing pipeline non-excavation laying long construction period to a certain extent, but this scheme is for laying super large caliber, for example, when bore surpasses the body laying of 1.6 meters, also exist: difficulty of construction is large, body traction difficulties, needs the construction hole of excavation larger, easy slippage when dilatory, body easy-rupturing when dilatory, the problems such as body easily scratches, and body encapsulation is poor, and body docking is insecure.
Summary of the invention
The object of the invention is for the problems referred to above, provide a kind of simple and reasonable, can complete the non-excavating construction system of the ultra-large caliber PE waste pipe of ultra-large caliber PE pipe non-excavation laying.
For achieving the above object, the present invention has adopted following technical proposal: the non-excavating construction system of this ultra-large caliber PE waste pipe, it is characterized in that, native system comprise for be tilted to down get out slope hole again level get out the no-dig directional driller in straight hole, and the first second excavating device of constructing and cheating of constructing hole and digging out vertical setting and being communicated with straight hole that digs out vertical setting and be communicated with slope hole peace straight hole respectively, in the first described construction hole, winch is installed, the second described top, construction hole is provided with for putting into hanging device and each PE pipe body of each PE pipe body and achieves a butt joint by heat-melting butt-joint device, on the tow rope of winch, be connected with for connecting the drawing head of PE pipe body, on the second construction hole, configuration can be to the grouting mechanism of PE body flow coat grouting liquid, native system also comprises when PE pipe body is pulled in starting stage or each distraction procedure at every turn manages to PE the electromagnetic shaker that body shakes.
The mechanism of being in the milk in this structure makes grouting liquid form one deck mud at the outer surface of PE pipe body, thereby generation buoyancy, reduce the frictional force in PE pipe body and straight hole, PE pipe body is in distraction procedure, PE pipe body tube wall and straight hole which side contacts of inwall, all can play lubrication, greatly reduced tractive force, after the docking of two PE pipe bodys, continue by grouting mechanism to PE pipe body flow coat grouting liquid, PE pipe body traction difficulty is lowered greatly, electromagnetic shaker carries out shock energy to PE pipe body and overcomes the static friction coefficient of grouting liquid to PE pipe body, be conducive to normally carrying out of traction, the grouting liquid here comprises the component of following mass fraction: the dry mud of 20-22 part, 10-12 part has the plant slurry of high-lubricity, and the water of 68-70 part, described dry mud, plant slurry and water stir, described plant slurry be any one or multiple pulverizing in shallot, curled mallow, okra, Chinese yam, cactus, taro in the pasty state, as a kind of preferred version, the plant slurry here adopts shallot to make, because shallot slurries have the traction that higher lubricity can guarantee the PE pipe body of super large caliber, although cost slightly improves, but the normal traction that guarantees ultra-large caliber PE pipe is only key, and the grouting of having added in addition shallot slurries can keep not solidifying for three to four days, first that two PE pipe bodys are coaxially opposite during the work of heat-melting butt-joint device, respectively PE pipe body butt end is cleaned, dry up, electric heating melting bellmouth is installed and the contraposition of two PE pipe bodys is closed up, implement electric heat welding, cooling after welding.Before docking, need the butt joint of PE pipe body to clean respectively, then electricity consumption hot blast drying, guarantees dry tack free, after hot melt completes, needs cooling 20 minutes, treats that jointing reaches some strength and can shake, traction.
In the non-excavating construction system of above-mentioned ultra-large caliber PE waste pipe, described drawing head comprises can be plugged in PE pipe body end and tubular traction cylindrical shell, the outer wall of described traction cylindrical shell and described PE pipe inboard wall of tube body lean, on traction cylindrical shell, be provided with for traction cylindrical shell and PE are managed to the fixed mechanism that body is connected, described pull cylinder end of body is fixed with can be by described PE pipe body end-enclosed and tapered traction end cap, and described traction end cap end is provided with draw ring.Adopt this structure the fixation of PE body to be difficult for during traction departing from, PE pipe body is difficult for producing fracture, and the pipe of the PE after traction body inside is without cleaning simultaneously.
In the non-excavating construction system of above-mentioned ultra-large caliber PE waste pipe, described fixed mechanism comprises some fixed blocks that can radially be located on traction cylindrical shell and PE pipe body, and each fixed block is in a discrete distribution along helix; The projection of each fixed block on traction cylindrical shell cross section is all positioned on same circumference and is uniformly distributed in a circumferential direction.Obviously, each fixed block is helix and distribute arranges, make fixed block radially be not axially all positioned on straight line, while guaranteeing traction, pulling force disperses, PE pipe body easy-rupturing not during traction, while making to draw, PE pipe body is stressed evenly, draws more laborsaving.
In the non-excavating construction system of above-mentioned ultra-large caliber PE waste pipe, described fixed block comprises the cylindrical pin with external thread being radially located on traction cylindrical shell and PE pipe body, at the intrinsic welded nut that is welded on traction cylinder inboard wall of end cover of cylindrical pin with external thread, the tightening nut that is also connected in the end of cylindrical pin with external thread and is set up in parallel with welded nut; The thread section length of described cylindrical pin with external thread is 2-3 times of welded nut thickness; The quantity of described fixed block is 4-16.In this structure, welded nut has facilitated the installation of cylindrical pin with external thread, and tightening nut makes the fixation of cylindrical pin with external thread, the resistance when while draws in order to reduce, and the outer end of cylindrical pin with external thread flushes with the outer wall of PE pipe body; The length of thread section has guaranteed the normal mounting of tightening nut, and as a kind of preferred version, the quantity of the fixed block is here 8.
In the non-excavating construction system of above-mentioned ultra-large caliber PE waste pipe, described traction end cap comprises and is fixed on pull cylinder end of body and tapered end cap skeleton, and described end cap skeleton is provided with and is conical shrouding; Described end cap skeleton comprises some at the equally distributed body of rod of circumferencial direction, the described body of rod comprises the first joint being connected with the inwall of described traction cylindrical shell by welding manner, the first described joint is connected with the rake being obliquely installed, the end of each rake comes together in the medial axis elongation line of traction cylindrical shell and forms the second joint in rake end, and each second joint is parallel to traction cylindrical shell medial axis and arranges and be all connected with draw ring; Described shrouding is provided with protection cylindrical shell away from one end of draw ring, and described protection cylindrical shell one end is connected with described shrouding, and the other end is fitted on PE pipe body; Described protection cylindrical shell comprises tubular straight part, the equal diameters of the diameter of described straight part and PE pipe body, and described straight part upper end is provided with arc choke, and described arc choke is connected with described shrouding by welding manner.In this structure, shrouding has guaranteed in distraction procedure, and the mud of grouting can not enter in PE pipe body, has avoided pollution PE pipe body inner, does not also need to rinse with a large amount of water; During for fear of traction, draw ring and the second joint depart from, and the draw ring is here connected with the second joint by welding manner; To protect cylindrical shell in order guaranteeing to draw indeformable, in protection cylindrical shell, to be also provided with supporting structure, during installation, traction cylindrical shell part is plugged in PE pipe body, protection cylinder body is positioned at traction cylindrical shell and is not plugged on the periphery that PE manages the part of body; The straight part here docks with PE pipe body, thereby guarantees normally carrying out of traction, makes straight part can protect PE pipe body, avoids its surface tear, and arc choke can play the effect of full circle to straight hole, reduces the mill resistance coefficient of hole wall and PE pipe body simultaneously; Straight part also can extend on PE pipe body outer side wall.
In the non-excavating construction system of above-mentioned ultra-large caliber PE waste pipe, in described traction cylindrical shell, be also provided with some struts that distribute along the different diameter of traction cylindrical shell respectively, the two ends distribution of each strut is connected with the inwall of traction cylindrical shell and each strut is uniformly distributed in a circumferential direction; The end of the first described joint contacts with strut.Improved the structural strength of traction cylindrical shell, prevented from producing distortion in distraction procedure.
In the non-excavating construction system of above-mentioned ultra-large caliber PE waste pipe, the aperture in described straight hole is greater than the 15-20% of PE pipe body external diameter; The length in the second described construction hole is greater than the length of single PE pipe body, and width is greater than the external diameter of single PE pipe body.The pore size in straight hole has guaranteed the normal traction of PE pipe body, the length in the second construction hole and width have guaranteed that PE pipe body can normally winch to the second bottom, construction hole, in addition in order to guarantee that PE pipe body can normally enter straight hole, the degree of depth in the second construction hole should be lower than straight hole.
In the non-excavating construction system of above-mentioned ultra-large caliber PE waste pipe, the first described bottom, construction hole arranges the first cushion block, and the second described bottom, construction hole arranges the second cushion block, and the second described cushion block is provided with circular arc recess; One end that described straight hole is connected with the first construction hole is fixed with the back timber of cross setting and the upper plane of back timber is positioned at straight hole horizontal center line, described tow rope is located on back timber and tow rope is positioned on straight centerline hole, and described winch is fixed on the first construction hole and can be adjusted tow rope height by adjusting bolt by adjusting bolt.In this structure the setting party of the first cushion block and the second cushion block construction, the second cushion block is provided with circular arc recess and has guaranteed the stability of PE pipe body in the second construction hole, in addition in order to ensure operator's life safety, should carry out the support that prevents landslide; When tow rope is positioned at straight centerline hole and makes to draw, tractive force is less.
In the non-excavating construction system of above-mentioned ultra-large caliber PE waste pipe, the cross section that is provided with an earth anchor ditch and earth anchor ditch in the first described construction hole is tee T, in described earth anchor ditch, be provided with earth anchor crossbeam, thereby being I shape and being lined with respectively fixture block in earth anchor crossbeam both sides, described earth anchor crossbeam make earth anchor crossbeam and fixture block surround formation cylinder, described tow rope is connected on earth anchor crossbeam, and the two ends of described earth anchor ditch are respectively equipped with for the fixing pile of earth anchor crossbeam.In this structure, earth anchor ditch should be arranged in the first construction hole and towards direction of traction, and timber can prevent that earth anchor crossbeam from departing from earth anchor ditch, makes the stability of winch stronger.
In the non-excavating construction system of above-mentioned ultra-large caliber PE waste pipe, described grouting mechanism comprises the grouting pond of being located at the second top, construction hole, is provided with the slurry pump being connected with the head that is in the milk in described grouting pond.Grouting head should be placed in the top that enters one meter of left and right, straight hole.
Compared with prior art, the advantage of the non-excavating construction system of this ultra-large caliber PE waste pipe is: simple in structure, ultra-large caliber PE pipe body traction difficulty is little, and the construction hole of excavation is little, is difficult for slippage when dilatory, body easy-rupturing not when dilatory, body is difficult for scratching, and body encapsulation is strong, without body inside is cleaned, body docking is firm, short construction period.
Accompanying drawing explanation
Fig. 1 is structural representation provided by the invention.
Fig. 2 is the structural representation of drawing head provided by the invention.
In figure, no-dig directional driller 1, slope hole 11, straight hole 12, back timber 121, the first construction hole 13, the first cushion block 131, the second construction hole 14, the second cushion block 141, winch 15, tow rope 151, adjusting bolt 152, drawing head 16, electromagnetic shaker 17, grouting mechanism 2, grouting 21, grouting pond 22, slurry pump 23, PE manages body 3, hanging device 31, earth anchor ditch 4, earth anchor crossbeam 41, fixture block 42, pile 43, traction cylindrical shell 5, traction end cap 6, shrouding 61, the body of rod 62, the first joint 621, rake 622, the second joint 623, draw ring 7, fixed block 8, cylindrical pin with external thread 81, welded nut 82, tightening nut 83, protection cylindrical shell 9, straight part 91, arc choke 92, strut 9a.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention will be further described in detail.
As shown in Figure 1-2, the non-excavating construction system of this ultra-large caliber PE waste pipe, comprise for be tilted to down get out slope hole 11 again level get out the no-dig directional driller 1 in straight hole 12, and dig out vertical setting and the excavating device in the first construction hole 13 being communicated with the peaceful straight hole 12 of slope hole 11 respectively and the second construction hole 14 of digging out vertical setting and being communicated with straight hole 12, the first construction hole 13 interior installation winchs 15, the second 14 tops, construction hole is provided with for putting into hanging device 31 and each PE pipe body 3 of each PE pipe body 3 and achieves a butt joint by heat-melting butt-joint device, on the tow rope 151 of winch 15, be connected with for connecting the drawing head 16 of PE pipe body 3, on the second construction hole 14, configuration can be to the grouting mechanism 2 of PE body 3 flow coat grouting liquids, native system also comprises when PE pipe body 3 is pulled in starting stage or each distraction procedure at every turn manages to PE the electromagnetic shaker 17 that body 3 shakes, the mechanism 2 of being in the milk in this structure makes grouting liquid form one deck mud at the outer surface of PE pipe body 3, thereby generation buoyancy, reduce the frictional force in PE pipe body 3 and straight hole 12, PE pipe body 3 is in distraction procedure, PE pipe body 3 tube walls and straight hole which side contacts of 12 inwalls, all can play lubrication, greatly reduced tractive force, after 3 docking of two PE pipe bodys, continue by grouting mechanism 2 to PE pipe body 3 flow coat grouting liquids, PE pipe body 3 traction difficulty are lowered greatly, 17 pairs of PE pipe bodys 3 of electromagnetic shaker carry out shock energy and overcome the static friction coefficient of grouting liquid to PE pipe body 3, be conducive to normally carrying out of traction, the grouting liquid here comprises the component of following mass fraction: the dry mud of 20-22 part, 10-12 part has the plant slurry of high-lubricity, and the water of 68-70 part, dry mud, plant slurry and water stir, described plant slurry be any one or multiple pulverizing in shallot, curled mallow, okra, Chinese yam, cactus, taro in the pasty state, as a kind of preferred version, the plant slurry here adopts shallot to make, because shallot slurries have the traction that higher lubricity can guarantee the PE pipe body 3 of super large caliber, although cost slightly improves, but the normal traction that guarantees ultra-large caliber PE pipe is only key, and the grouting of having added in addition shallot slurries can keep not solidifying for three to four days, first that two PE pipe bodys 3 are coaxially opposite when heat-melting butt-joint device is worked in addition, respectively PE pipe body 3 butt ends are cleaned, dry up, electric heating melting bellmouth is installed and also 3 contrapositions of two PE pipe bodys is closed up, enforcement electric heat welding, cooling after welding.Before docking, need the butt joint of PE pipe body 3 to clean respectively, then electricity consumption hot blast drying, guarantees dry tack free, after hot melt completes, needs cooling 20 minutes, treats that jointing reaches some strength and can shake, traction.
As a kind of preferred version, the drawing head 16 here comprises can be plugged in PE pipe body 3 ends and tubular traction cylindrical shell 5, the outer wall of traction cylindrical shell 5 and described PE manage body 3 inwalls and lean, on traction cylindrical shell 5, be provided with for traction cylindrical shell 5 and PE are managed to the fixed mechanism that body 3 is connected, traction cylindrical shell 5 ends are fixed with can be by PE body 3 end-encloseds and tapered traction end cap 6, traction end cap 6 ends are provided with draw ring 7, this structure can be by 3 fixations of PE body, during traction, be difficult for departing from, PE pipe body 3 is difficult for producing fracture, PE after traction pipe body 3 inside are without cleaning simultaneously.Fixed mechanism comprises some fixed blocks 8 that can radially be located on traction cylindrical shell 5 and PE pipe body 3, and each fixed block 8 is in a discrete distribution along helix; The projection of each fixed block 8 on traction cylindrical shell 5 cross sections is all positioned on same circumference and is uniformly distributed in a circumferential direction, each fixed block 8 is helix distribution and arranges, make fixed block 8 radially with axially all not be positioned on straight line, while guaranteeing traction, pulling force disperses, during traction, PE manages not easy-rupturing of body 3, while making to draw, PE pipe body 3 is stressed evenly, draws more laborsaving.Fixed block 8 comprises the cylindrical pin with external thread 81 being radially located on traction cylindrical shell 5 and PE pipe body 3, at the intrinsic welded nut 82 that is welded on traction cylindrical shell 5 inwalls of end cover of cylindrical pin with external thread 81, the tightening nut 83 that is also connected in the end of cylindrical pin with external thread 81 and is set up in parallel with welded nut 82; The thread section length of cylindrical pin with external thread 81 is 2-3 times of welded nut 82 thickness; The quantity of fixed block 8 is 4-16, and welded nut 82 has facilitated the installation of cylindrical pin with external thread 81, and tightening nut 83 makes the fixation of cylindrical pin with external thread 81, the resistance when while draws in order to reduce, and the outer end of cylindrical pin with external thread 81 flushes with the outer wall of PE pipe body 3; The length of thread section has guaranteed the normal mounting of tightening nut 83, and as a kind of preferred version, the quantity of the fixed block 8 is here 8.Traction end cap 6 comprises and is fixed on traction cylindrical shell 5 ends and tapered end cap skeleton, and end cap skeleton is provided with and is conical shrouding 61; End cap skeleton comprises some at the equally distributed body of rod 62 of circumferencial direction, the body of rod 62 comprises the first joint 621 being connected with the inwall of described traction cylindrical shell 5 by welding manner, the first joint 621 is connected with the rake 622 being obliquely installed, the end of each rake 622 comes together in the medial axis elongation line of traction cylindrical shell 5 and forms the second joint 623 in rake 622 ends, and each second joint 623 is parallel to traction cylindrical shell 5 medial axis and arranges and be all connected with draw ring 7; Shrouding 61 is provided with protection cylindrical shell 9 away from one end of draw ring 7, and protection cylindrical shell 9 one end are connected with shrouding 61, and the other end is fitted on PE pipe body 3; Protection cylindrical shell 9 comprises tubular straight part 91, the equal diameters of the diameter of straight part 91 and PE pipe body 3, straight part 91 upper ends are provided with arc choke 92, and arc choke 92 is connected with described shrouding 61 by welding manner, shrouding has guaranteed in distraction procedure, the mud of grouting can not enter in PE pipe body 3, has avoided pollution PE pipe body 3 inside, does not need to rinse with a large amount of water yet; During for fear of traction, draw ring 7 and the second joint 623 depart from, and the draw ring 7 is here connected with the second joint 623 by welding manner; To protect cylindrical shell 9 in order guaranteeing to draw indeformable, in protection cylindrical shell 9, to be also provided with supporting structure, during installation, traction cylindrical shell 5 parts are plugged in PE pipe body 3, protection cylindrical shell 9 is positioned at traction cylindrical shell 5 and is not plugged on the periphery that PE manages the part of body 3; The straight part 91 here docks with PE pipe body 3, thereby guarantee normally carrying out of traction, make straight part 91 can protect PE pipe body 3, avoid its surface tear, arc choke 92 can play the effect of full circle to straight hole 12, reduce the mill resistance coefficient of hole wall and PE pipe body 3 simultaneously; Straight part 12 also can extend on PE pipe body 3 outer side walls.In traction cylindrical shell 5, be also provided with some strut 9a that distribute along the different diameter of traction cylindrical shell 5 respectively, the two ends distribution of each strut 9a is connected with the inwall of traction cylindrical shell 5 and each strut 9a is uniformly distributed in a circumferential direction; The end of the first joint 621 contacts with strut 9a, has improved the structural strength of traction cylindrical shell 5, prevents from producing distortion in distraction procedure.
The aperture in the straight hole 12 is here greater than the 15-20% of PE pipe body 3 external diameters; The length in the second construction hole 14 is greater than the length of single PE pipe body 3, width is greater than the external diameter of single PE pipe body 3, the pore size in straight hole 12 has guaranteed the normal traction of PE pipe body 3, the length in the second construction hole 14 and width have guaranteed that PE pipe body 3 can normally winch to the second construction and cheat 14 bottoms, in addition should be lower than straight hole 12 in order to guarantee that PE pipe body 3 can normally enter the degree of depth in 12, the second construction holes 14, straight hole.The first 13 bottoms, construction hole arranges 14 bottoms, the first cushion block 131, the second construction hole and the second cushion block 141, the second cushion blocks 141 are set are provided with circular arc recess, described straight hole 12 is fixed with the back timber 121 of cross setting with 13 one end that are connected, the first construction hole and the upper plane of back timber 121 is positioned at straight hole 12 horizontal center lines, tow rope 151 is located on back timber 121 and tow rope 151 is positioned on 12 center lines of straight hole, winch 15 is fixed on the first construction hole 13 and can be adjusted tow rope 151 height by adjusting bolt 152 by adjusting bolt 152, the setting party of the first cushion block 131 and the second cushion block 141 construction, the second cushion block 141 is provided with circular arc recess and has guaranteed the stability of PE pipe body 3 in the second construction hole, in addition in order to ensure operator's life safety, should carry out the support that prevents landslide, when tow rope 151 is positioned at straight hole 12 center lines and makes to draw, tractive force is less.The cross section that is provided with an earth anchor ditch 4 and earth anchor ditch 4 in the first construction hole 13 is tee T, in earth anchor ditch 4, be provided with earth anchor crossbeam 41, thereby being I shape and being lined with respectively fixture block 42 in earth anchor crossbeam 41 both sides, earth anchor crossbeam 41 make earth anchor crossbeam 41 and fixture block 42 surround formation cylinder, tow rope 151 is connected on earth anchor crossbeam 41, the two ends of earth anchor ditch 4 are respectively equipped with for the fixing pile 43 of earth anchor crossbeam 41, earth anchor ditch 4 should be arranged in the first construction hole 13 and towards direction of traction, timber 43 can prevent that earth anchor crossbeam 41 from departing from earth anchor ditch 4, make the stability of winch 15 stronger.Grouting mechanism 2 comprises and is located at the grouting pond 22 that 14 tops are cheated in the second construction, in described grouting pond 22, be provided with slurry pump 23, described slurry pump 23 is connected with the grouting 21 that is arranged on straight hole 12 upper inside wall, and grouting 21 should be placed in the top that enters 12 1 meters of left and right, straight hole.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various modifications or supplement or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Although more used no-dig directional driller 1 herein, slope hole 11, straight hole 12, back timber 121, the first construction hole 13, the first cushion block 131, the second construction hole 14, the second cushion block 141, winch 15, tow rope 151, adjusting bolt 152, drawing head 16, electromagnetic shaker 17, grouting mechanism 2, grouting 21, grouting pond 22, slurry pump 23, PE manages body 3, hanging device 31, earth anchor ditch 4, earth anchor crossbeam 41, fixture block 42, pile 43, traction cylindrical shell 5, traction end cap 6, shrouding 61, the body of rod 62, the first joint 621, rake 622, the second joint 623, draw ring 7, fixed block 8, cylindrical pin with external thread 81, welded nut 82, tightening nut 83, protection cylindrical shell 9, straight part 91, arc choke 92, the terms such as strut 9a, but do not get rid of the possibility of using other term.Use these terms to be only used to describe more easily and explain essence of the present invention; They are construed to any additional restriction is all contrary with spirit of the present invention.
Claims (10)
1. the non-excavating construction system of a ultra-large caliber PE waste pipe, it is characterized in that, native system comprise for be tilted to down get out slope hole (11) again level get out the no-dig directional driller (1) of straight hole (12), and dig out vertical setting and the first construction hole (13) being communicated with the peaceful straight hole of slope hole (11) (12) respectively and dig out vertical setting and is communicated with straight hole (12) second construct and cheat the excavating device of (14), in the first described construction hole (13), winch (15) is installed, the second described top, construction hole (14) is provided with for putting into hanging device (31) and each PE pipe body (3) of each PE pipe body (3) and achieves a butt joint by heat-melting butt-joint device, on the tow rope (151) of winch (15), be connected with for connecting the drawing head (16) of PE pipe body (3), can be to the grouting mechanism (2) of PE body (3) flow coat grouting liquid in the second upper configuration in construction hole (14), native system also comprises when PE pipe body (3) is pulled in starting stage or each distraction procedure at every turn manages to PE the electromagnetic shaker (17) that body (3) shakes.
2. the non-excavating construction system of ultra-large caliber PE waste pipe according to claim 1, it is characterized in that, described drawing head (16) comprises can be plugged in PE pipe body (3) end and tubular traction cylindrical shell (5), the outer wall of described traction cylindrical shell (5) and described PE pipe body (3) inwall lean, on traction cylindrical shell (5), be provided with the fixed mechanism being connected for drawing cylindrical shell (5) and PE pipe body (3), described traction cylindrical shell (5) end is fixed with can be by described PE pipe body (3) end-enclosed and tapered traction end cap (6), described traction end cap (6) end is provided with draw ring (7).
3. the non-excavating construction system of ultra-large caliber PE waste pipe according to claim 2, it is characterized in that, described fixed mechanism comprises some fixed blocks (8) that can radially be located on traction cylindrical shell (5) and PE pipe body (3), and each fixed block (8) is in a discrete distribution along helix; The projection of each fixed block (8) on traction cylindrical shell (5) cross section is all positioned on same circumference and is uniformly distributed in a circumferential direction.
4. the non-excavating construction system of ultra-large caliber PE waste pipe according to claim 3, it is characterized in that, described fixed block (8) comprises the cylindrical pin with external thread (81) being radially located on traction cylindrical shell (5) and PE pipe body (3), at the intrinsic welded nut (82) that is welded on traction cylindrical shell (5) inwall of end cover of cylindrical pin with external thread (81), the tightening nut (83) that is also connected in the end of cylindrical pin with external thread (81) and is set up in parallel with welded nut (82); The thread section length of described cylindrical pin with external thread (81) is 2-3 times of welded nut (82) thickness; The quantity of described fixed block (8) is 4-16.
5. the non-excavating construction system of ultra-large caliber PE waste pipe according to claim 4, it is characterized in that, described traction end cap (6) comprises and is fixed on traction cylindrical shell (5) end and tapered end cap skeleton, and described end cap skeleton is provided with and is conical shrouding (61), described end cap skeleton comprises some at the equally distributed body of rod of circumferencial direction (62), the described body of rod (62) comprises the first joint (621) being connected with the inwall of described traction cylindrical shell (5) by welding manner, described the first joint (621) is connected with the rake (622) being obliquely installed, the end of each rake (622) comes together in the medial axis elongation line of traction cylindrical shell (5) and forms the second joint (623) in rake (622) end, each second joint (623) is parallel to traction cylindrical shell (5) medial axis and arranges and be all connected with draw ring (7), described shrouding (61) is provided with protection cylindrical shell (9) away from one end of draw ring (7), and described protection cylindrical shell (9) one end is connected with described shrouding (61), and the other end is fitted on PE pipe body (3), described protection cylindrical shell (9) comprises tubular straight part (91), the equal diameters of the diameter of described straight part (91) and PE pipe body (3), described straight part (91) upper end is provided with arc choke (92), and described arc choke (92) is connected with described shrouding (61) by welding manner.
6. the non-excavating construction system of ultra-large caliber PE waste pipe according to claim 5, it is characterized in that, in described traction cylindrical shell (5), be also provided with some struts (9a) that distribute along the different diameter of traction cylindrical shell (5) respectively, the two ends distribution of each strut (9a) is connected with the inwall of traction cylindrical shell (5) and each strut (9a) is uniformly distributed in a circumferential direction; The end of described the first joint (621) contacts with strut (9a).
7. according to the non-excavating construction system of the ultra-large caliber PE waste pipe described in any one in claim 1-6, it is characterized in that, the aperture in described straight hole (12) is greater than the 15-20% of PE pipe body (3) external diameter; The length in the second described construction hole (14) is greater than the length of single PE pipe body (3), and width is greater than the external diameter of single PE pipe body (3).
8. according to the non-excavating construction system of the ultra-large caliber PE waste pipe described in any one in claim 1-6, it is characterized in that, the first described bottom, construction hole (13) arranges the first cushion block (131), the second described bottom, construction hole (14) arranges the second cushion block (141), and described the second cushion block (141) is provided with circular arc recess; One end that described straight hole (12) is connected with the first construction hole (13) is fixed with the back timber (121) of cross setting and the upper plane of back timber (121) is positioned at straight hole (12) horizontal center line, described tow rope (151) is located at back timber (121) above and tow rope (151) is positioned on the center line of straight hole (12), and described winch (15) is fixed on the first construction hole (13) and can be passed through adjusting bolt (152) and adjust tow rope (151) highly by adjusting bolt (152).
9. the non-excavating construction system of ultra-large caliber PE waste pipe according to claim 8, it is characterized in that, the cross section that is provided with an earth anchor ditch (4) and earth anchor ditch (4) in the first described construction hole (13) is tee T, in described earth anchor ditch (4), be provided with earth anchor crossbeam (41), described earth anchor crossbeam (41) be I shape and in earth anchor crossbeam (41) both sides, be lined with respectively fixture block (42) thus make earth anchor crossbeam (41) and fixture block (42) surrounds formation cylinder, described tow rope (151) is connected on earth anchor crossbeam (41), the two ends of described earth anchor ditch (4) are respectively equipped with for the fixing pile (43) of earth anchor crossbeam (41).
10. the non-excavating construction system of ultra-large caliber PE waste pipe according to claim 1, it is characterized in that, described grouting mechanism (2) comprises the grouting pond (22) of being located at the second top, construction hole (14), in described grouting pond (22), be provided with slurry pump (23), described slurry pump (23) is connected with the grouting head (21) that is arranged on straight hole (12) upper inside wall.
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