CN101158269B - Method for drilling roadbed small-caliber horizontal jacking pipe and drill bit - Google Patents
Method for drilling roadbed small-caliber horizontal jacking pipe and drill bit Download PDFInfo
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- CN101158269B CN101158269B CN2007101349946A CN200710134994A CN101158269B CN 101158269 B CN101158269 B CN 101158269B CN 2007101349946 A CN2007101349946 A CN 2007101349946A CN 200710134994 A CN200710134994 A CN 200710134994A CN 101158269 B CN101158269 B CN 101158269B
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Abstract
The invention discloses a boring plan and a bore used for a small caliber horizontal pipe-jacking of a road bed. The invention comprises a cutting tool holder, a transition pipe, a hole-expanding tool holder, a slurry-pressing ring and a guiding pipe which are sequentially connected through welding. A bore rod coupling is connected with one end of the guiding pipe; and a slurry transferring pipe is respectively arranged in the slurry-pressing ring, the guiding pipe and the transition pipe. The boring machine and the bores can be used for the construction of boring horizontal pipe-jacking to rocks, weathering rocks, moraines, grits, soil powders, fly ashes and clays, etc. different materials and digging and filling, etc. different road beds with no need to excavate road surfaces, to block a road traffic or to impact a normal use of the road, so as to satisfy a requirement of horizontally laying communication pipelines and draining pipelines, etc. in completion or use periods of roads.
Description
Technical field
The present invention relates to the boring method and the target drill of roadbed small-caliber horizontal jacking pipe construction.
Technical background
At present, when in finishing the roadbed of building phase or runtime highway, laying the construction of engineerings such as lateral communications pipeline or transverse drainage pipeline, because of pipeline generally has only the less diameter of 100～300mm, and roadbed has polytypes such as excavation and embankment, and roadbed is by rock, highly weathered rock, enrockment, gravel, silt, different materials such as flyash and clay builds up, can not use conventional explosion pore-forming, the extruding injection, common drill bit horizontal drilling and blocking-up traffic excavate the job practices construction on road surface etc., and active demand is quick, accurately, simply, reliably, easy to operate and the new job practices of economic dispatch.
Summary of the invention
The boring method and the drill bit that the purpose of this invention is to provide roadbed small-caliber horizontal jacking pipe, realized not excavating the road surface, not blocking highway communication and do not influence under the situation of the normal operation of highway, adopt rig and those target drills that different materials such as rock, highly weathered rock, enrockment, gravel, silt, flyash and clay and dissimilar roadbed such as excavation or embankment are carried out the construction of boring method horizontal jacking pipe, satisfy in the intact demand of laying lateral communications pipeline and transverse drainage pipeline etc. in the highway subgrade of phase or runtime of building.
Technical scheme of the present invention is as follows:
The boring method of roadbed small-caliber horizontal jacking pipe is characterized in that: after position, axis and the absolute altitude etc. of push pipes such as the lateral communications pipeline of highway or transverse drainage pipeline are measured setting-out, place the drill bit locating rack at the position of pushing tube of roadbed side slope; Dig out the machine hole of rig on the side slope of roadbed or the toe, use the automobile crane rigging up; Select to be suitable for drill bit according to the diameter of push pipe, roadbed type and roadbed material, the drilling rod furnishing of rig is level slightly to the angle of facing upward, the drill bit frame is on locating rack, and mixer spuds in after stirring special-purpose mud jacking material; The limit bit bore, the limit slush pump is pressed into mud jacking material retaining wall and deslagging by the stock line in the drill bit to roadbed boring; Drill bit withdraws from drilling rod and drill bit after getting out from the communication cable well of side slope, toe or the median strip of opposite side roadbed and collecting well; Jack with rig heads into steel pipe in boring, electric welding machine firm welding and sealing must be used in the junction of every steel pipe; At steel pipe and roadbed hole wall gap is pressed into soil cement slurry or clay mortar tamps, steel pipe seals with cement mortar is floating in the outside of roadbed import and export.
The drill bit of roadbed small-caliber horizontal jacking pipe, it is characterized in that: including the cutter saddle, the cross section that are weldingly connected successively is oval-shaped mud jacking ring, guide pipe, the end of guide pipe is connected with the tube drilling rod joint, in mud jacking ring and the guide pipe feed pipe for mortar is installed, feed pipe for mortar one end and tool joint UNICOM, the slurry hole of penetrating on the other end and the bite stand links.
The drill bit of roadbed small-caliber horizontal jacking pipe, it is characterized in that: include the cutter saddle, transition conduit, reaming knife rest, the guide pipe that are weldingly connected successively, the end of guide pipe is connected with the tube drilling rod joint, described guide pipe is thicker than transition conduit, in transition conduit, reaming knife rest and the guide pipe feed pipe for mortar is installed, feed pipe for mortar one end and tool joint UNICOM, the slurry hole of penetrating on the other end and the bite stand links;
The drill bit of described roadbed small-caliber horizontal jacking pipe is characterized in that:
(1), described cutter saddle selects the drum type brake cutter saddle for use, on the inwall of described drum type brake cutter saddle rear end disconnected stone core card arranged; The length of guide pipe is greater than 6 times push pipe diameter of steel tube, and is not less than 1.0m; 8 blades are arranged on the rear end face of guide pipe, be welded with the carbide alloy bloom on the blade; Perhaps
(2), described cutter saddle selects star formula cutter saddle for use, the length of guide pipe is greater than 10 times push pipe diameter of steel tube, and is not less than 2.0m; 8 blades are arranged on the rear end face of guide pipe, be welded with the carbide alloy bloom on the blade; Perhaps
(3), described cutter saddle selects cross bevel-type cutter saddle for use, the length of guide pipe is greater than 10 times push pipe diameter of steel tube, and is not less than 2.0m; Perhaps
(4), described cutter saddle selects cross formula cutter saddle for use, the length of guide pipe is greater than 10 times push pipe diameter of steel tube, and is not less than 2.0m.
The drill bit of described roadbed small-caliber horizontal jacking pipe is characterized in that: the front end of described drum type brake cutter saddle is the rectangular teeth shape, and each tooth tooth is long to be that 2cm～6cm and tooth depth are 1cm～2cm, is welded with the carbide alloy bloom on the tooth; The star formula gear shape that described star formula cutter saddle is 8 teeth, the slurry hole of penetrating in the middle of the front end emits on each tooth and each tooth and all is welded with the carbide alloy bloom; Described cross bevel-type cutter saddle is the cross cone-shaped that is 30 °～60 ° of cone angles, and the blade of cross awl is vertical mutually, is welded with the carbide alloy bloom on the blade; Described cross formula cutter saddle is a cross shape, and the blade of cross is vertical mutually and one is long and the other is short, and the rimmer knife sword grows 6cm～10cm than short sword sword, is welded with the carbide alloy bloom on the blade of cross formula cutter saddle front end and outer ledge.
The drill bit of described roadbed small-caliber horizontal jacking pipe is characterized in that: the diameter of described cutter saddle and guide pipe is greater than push pipe diameter of steel tube 5%～15%; The cross section of described mud jacking ring is an elliptical shape, and the long diameter of its ellipse is equal to the diameter of guide pipe, and short diameter is 0.85～0.95 times of long diameter; Described guide pipe rear end is the truncated cone shape that is 30 °～45 ° of cone angles; The screw thread that is connected with drilling rod is arranged in the described tool joint, and this joint is concentric with the drill bit axis.
The drill bit of described roadbed small-caliber horizontal jacking pipe is characterized in that: the cutter saddle of described drill bit, disconnected stone core card, the material of penetrating slurry hole, feed pipe for mortar, mud jacking ring and guide pipe are steel, and the material of tool joint is a cast steel.
The drill bit of described roadbed small-caliber horizontal jacking pipe, it is characterized in that: described cross formula cutter saddle is a cross shape, the blade of cross is vertical mutually and one is long and the other is short, the rimmer knife sword grows 6cm～10cm than short sword sword, is welded with the carbide alloy bloom on the blade of cross formula cutter saddle front end and outer ledge; The transition conduit diameter is identical with cross formula cutter saddle diameter, and transition conduit length is 0.6～1.0m; The reaming knife rest is the truncated cone shape that is 30 °～45 ° of cone angles, is being evenly distributed 8 blades on the circular cone table top, is welded with the carbide alloy bloom on the blade; The length of guide pipe is greater than 6 times push pipe diameter of steel tube, and is not less than 1.5m.
The drill bit of described roadbed small-caliber horizontal jacking pipe, it is characterized in that: described reaming knife rest diameter is 1.7～2.7 times of cross formula cutter saddle diameter, the guide pipe diameter is identical with reaming knife rest diameter, and the diameter of reaming knife rest and guide pipe is greater than push pipe diameter of steel tube 5%～10%; Described guide pipe rear end is the truncated cone shape that is 30 °～45 ° of cone angles; The screw thread that is connected with drilling rod is arranged in the described tool joint, and this joint is concentric with the drill bit axis.
The drill bit of described roadbed small-caliber horizontal jacking pipe is characterized in that: the cutter saddle of described drill bit,, the material of penetrating slurry hole, feed pipe for mortar, transition conduit, reaming knife rest and guide pipe is steel, the material of tool joint is a cast steel.
The target drill of five kinds of structures provided by the invention, be applicable to the boring greater than the 200mm push pipe of the boring of boring, clay roadbed push pipe of boring, silt or flyash roadbed push pipe of boring, highly weathered rock roadbed push pipe of rock, enrockment or gravel roadbed push pipe and clay roadbed and diameter of steel tube respectively, corollary equipment has rig, drilling rod, drill bit locating rack, slush pump, mixer, electric welding machine, automobile crane and diesel-driven generator etc.
Select the drill bit of drum type brake cutter saddle for use, when being used for the boring of rock subgrade push pipe, the limit drill bit creeps into limit clay mud pulp-water deslagging, and behind the full whole drill bit of brill, the disconnected stone core card in the drum type brake cutter saddle twists off Shi Xin automatically, and drill bit is withdrawed from boring taking-up stone core.Mud jacking, boring, deslagging and get core and repeat like this get out from the communication cable well of side slope, toe or the median strip of opposite side roadbed and collecting well until drill bit.Withdraw from drill bit and drilling rod, head into steel pipe with the jack of rig.
Select the drill bit of drum type brake cutter saddle for use, when being used for the boring of enrockment or gravel roadbed push pipe, before the boring, be pressed into the soil cement slurry of mixing quick setting admixture at the enrockment of roadbed position of pushing tube or the gap of gravel earlier.After treating that enrockment or gravel are frozen into integral body, use bit bore again, and with clay mud pulp-water deslagging.After boring full whole drill bit, the disconnected stone core card in the drum type brake cutter saddle twists off Shi Xin automatically, drill bit is withdrawed from boring take out the stone core, until this section of condensing has been bored.From second section boring, allow the empty limit of boring, drill bit limit be pressed into the soil cement slurry of mixing quick setting admixture earlier, by the mud jacking ring soil cement slurry is pressed into the roadbed hole wall.After treating the soil cement slurry initial set, withdraw from the clear hole of drill bit at a slow speed, prevent to block the boring and the drill bit that clogs.After treating soil cement slurry final set, hole again and be pressed into clay mud pulp-water deslagging.Like this mud jacking, solidify, clear hole, boring, deslagging and get core and repeat piecemeal, get out from the communication cable well of opposite side roadbed side slope, toe or median strip and collecting well until drill bit.After withdrawing from drill bit and drilling rod, head into steel pipe with the jack of rig.
Select the drill bit of star formula cutter saddle for use, be applicable to the boring of highly weathered rock roadbed push pipe, before the boring, elder generation is pressed into the soil cement slurry of mixing quick setting admixture in the crack of the highly weathered rock of roadbed position of pushing tube, after treating that highly weathered rock is frozen into integral body, again with bit bore and with clay mud pulp-water deslagging, until this section of condensing has been bored.From second section boring, the drill bit empty limit of boring in first limit is pressed into the soil cement slurry of mixing quick setting admixture, by the mud jacking ring soil cement slurry is pressed into the roadbed hole wall.After treating the soil cement slurry initial set, withdraw from the clear hole of drill bit at a slow speed, prevent to block the boring and the drill bit that clogs.After treating soil cement slurry final set, hole again and be pressed into clay mud pulp-water deslagging.Like this mud jacking, solidify, retaining wall, clear hole, boring and deslagging repeat piecemeal, get out from the communication cable well of side slope, toe or the median strip of opposite side roadbed and collecting well until drill bit.After withdrawing from drill bit and drilling rod, head into steel pipe with the jack of rig.
Select the drill bit of cross bevel-type cutter saddle for use, be applicable to the boring of silt or flyash roadbed push pipe, during boring, drill bit is penetrated the slurry hole and is penetrated the clay mud pulp-water while creeping into, and the limit is pressed into roadbed retaining wall and deslagging to mud by the mud jacking ring.Boring like this, mud jacking, retaining wall and deslagging get out from the communication cable well of side slope, toe or the median strip of opposite side roadbed and collecting well until drill bit.After withdrawing from drill bit and drilling rod, head into steel pipe with the jack of rig.
Select the drill bit of cross formula cutter saddle for use, be applicable to the boring of clay roadbed push pipe, during boring, drill bit is penetrated the slurry hole and is penetrated the clay of clay mud pulp-water removing paste on drill bit while creeping into, and the limit is gone into roadbed retaining wall and deslagging to clay mortar hydraulic pressure by the mud jacking ring.Boring like this, mud jacking, retaining wall and deslagging get out from the communication cable well of side slope, toe or the median strip of opposite side roadbed and collecting well until drill bit.After withdrawing from drill bit and drilling rod, head into steel pipe with the jack of rig.
Greater than the boring of 200mm push pipe, select the drill bit that between cross formula cutter saddle and guide pipe, has increased transition conduit, reaming knife rest for use for clay roadbed and diameter of steel tube.During boring, be cross formula cutter saddle and the transition conduit location drilling of 114mm by diameter earlier, again by the aperture of reaming knife rest reaming one-tenth greater than 200mm.The limit location drilling, the limit reaming, the limit mud off, the limit deslagging gets out from the communication cable well of side slope, toe or the median strip of opposite side roadbed and collecting well until drill bit.After withdrawing from drill bit and drilling rod, head into steel pipe with the jack of rig.
Drill bit locating rack of the present invention is a welded steel plate.Its base plate is a square, and location-plate places the centre of plate top surface.There is semicircle gap the centre of location-plate top, and respectively there are two triangle diagonal braces the both sides of its below.This locating rack is placed on roadbed side slope or the toe to the drill bit location, the boring of spudding on the location-plate of this locating rack of drill bit frame.
The mud jacking material of the present invention's boring is selected according to roadbed material.If roadbed material is a rock, the mud jacking material of employing is the clay mud pulp-water.If roadbed material is enrockment, gravel and highly weathered rock: during retaining wall, the mud jacking material of employing is a soil cement slurry of mixing quick setting admixture; During boring, the mud jacking material of employing is the clay mud pulp-water.If roadbed material is silt, flyash or clay, the mud jacking material of employing is the clay mud pulp-water.
Corollary equipment of the present invention, described rig adopts stratigraphic rig, according to the power of definite rigs such as diameter, length, roadbed type and roadbed material of push pipe, selects the specifications and models of rig; The drilling rod of described rig is level slightly to the angle of facing upward, and determines that according to situations such as push pipe length, top tube diameter and roadbed materials generally this angle is 0 °～5 °; Described push pipe is a galvanized welded pipe, and the diameter of push pipe steel pipe commonly used is two kinds of 114mm and 219mm, and thickness of pipe wall is 4mm～10mm.
Principle of the present invention
Do not excavating the road surface, do not blocking traffic and do not influence under the prerequisite of the normal operation of highway, according to roadbed the dissimilar of excavation and embankment etc. are arranged, and roadbed material has hard, block, shot, easily slump, easily liquefaction and easily stick with paste the different qualities of drill bit etc., select suitable target drill, mud jacking material and pipe pushing technology, could be fast and degree of precision carry out the construction of boring method small-caliber horizontal jacking pipe.When roadbed material is the excavation roadbed of rock, though the hard hole of collapsing that is difficult for of rock in order to improve drilling efficiency, is selected the drum type brake cutter saddle that reduces the area of cut for use as far as possible.There are 4 disconnected stone core cards rear end in the drum type brake cutter saddle tube, and disconnected stone core card co-operation is blocked Shi Xin behind the brill fully-jewelled head, and the drill bit of rotation can twist off Shi Xin automatically more reliably, withdraws from drill bit and can take out the stone core.During boring, be pressed into the bigger clay mud pulp-water of buoyancy and utilize mud jacking ring deslagging.Employing has the guide pipe of certain-length, allows drill bit keep holing along the direction of push pipe axis, guarantees to hole straight and precision push pipe.So constantly hole or get core, finish boring step by step; When roadbed material is that hardness enrockment filled-up ground higher, block and easily loosening displacement or roadbed material are hard, smooth, shots and easily during the gravel roadbed in the loosening hole of collapsing, have stable road structure, piece stone invariant position and not bit freezing be the key that can hole smoothly, so adopt the mode that segmentation creeps into and select for use the few high drum type brake cutter saddle of drilling efficiency of the area of cut to hole.Before every section boring, drill bit is empty earlier to be bored, penetrating the slurry hole and penetrate the soil cement slurry mix quick setting admixture, is that the circle of oval-shaped mud jacking ring lacks the space and holds soil cement slurry by the cross section, utilizes geometry and centrifugal force soil cement slurry to be pressed into the gap of roadbed hole wall enrockment or gravel after the rotation.After treating the soil cement slurry initial set, withdraw from the clear hole of drill bit at a slow speed, prevent to block the boring and the drill bit that clogs.After the soil cement slurry final set, the boring of drill bit limit, the limit is pressed into clay mud pulp-water deslagging.There are 4 disconnected stone core cards rear end in the drum type brake cutter saddle tube end, and disconnected stone core card co-operation is blocked Shi Xin behind the brill fully-jewelled head, and the drill bit of rotation can twist off Shi Xin automatically more reliably, withdraws from drill bit and both can take out the stone core.Employing has the guide pipe of certain-length, allows drill bit keep holing along the direction of push pipe axis, guarantees to hole straight and precision push pipe.Because the restriction of pressurized pulp material and mud jacking pressure, each mud jacking scope can be very not big, piecemeal mud jacking, condense, clear hole, hole, slag tap and get core and hole; When roadbed material is the highly weathered rock excavation roadbed of the higher and easily loosening slump of joints development, hardness, stable road structure being arranged and do not fall the stone bit freezing is the smooth key of push pipe, so adopt the mode that segmentation creeps into and select for use the strong star formula cutter saddle of grinding capacity to hole.Before every section boring, drill bit is empty earlier to be bored, penetrating the slurry hole and penetrate the soil cement slurry mix quick setting admixture, is that the circle of oval-shaped mud jacking ring lacks the space and holds soil cement slurry by the cross section, utilizes geometry and centrifugal force soil cement slurry to be pressed into the slit of roadbed hole wall highly weathered rock after the rotation.After treating the soil cement slurry initial set, withdraw from the clear hole of drill bit at a slow speed, prevent to block the boring and the drill bit that clogs.After the soil cement slurry final set, the boring of drill bit limit, the limit is pressed into clay mud pulp-water deslagging.Employing has the guide pipe of certain-length, allows drill bit keep holing along the direction of push pipe axis, guarantees to hole straight and precision push pipe.Because the restriction of pressurized pulp material and mud jacking pressure, each mud jacking scope can be very not big, piecemeal mud jacking, condense, retaining wall, clear hole, boring and deslagging hole; When roadbed material is the filled-up ground of silt or flyash, little because of the coagulability of roadbed material, intensity is low, particle diameter is even, easily liquefaction, in case very easily caved in and be difficult to control by disturbance, select for use positioning accuracy better, vibration is little and cutting power is higher cross bevel-type cutter saddle holes.During boring, penetrating the slurry hole and penetrate the clay mud pulp-water, is that the circle of oval-shaped mud jacking ring lacks the space and holds mud by the cross section, utilizes geometry and centrifugal force that mud is pressed into the roadbed hole wall after the rotation and comes retaining wall.Adopt the guide pipe of certain-length can allow drill bit keep holing along the direction of push pipe axis, guarantee to hole straight and precision push pipe, also play certain retaining wall effect simultaneously, mud jacking, retaining wall, boring and deslagging are finished boring like this; When roadbed material was the roadbed of clay, adhesion stress was difficult for the hole of collapsing because of clay has preferably, can select for use to be difficult for sticking with paste drill bit and the higher cross formula cutter saddle boring of drilling efficiency while holing from making mud again.During boring, penetrate the slurry hole and penetrate the clear drill bit of clay mud pulp-water, and be that the circle of oval-shaped mud jacking ring lacks the space and holds mud, utilize geometry and centrifugal force that mud is pressed into the roadbed hole wall after the rotation and come retaining wall by the cross section.Adopt the guide pipe of certain-length can allow drill bit keep holing along the direction of push pipe axis, guarantee to hole straight and precision push pipe, also play the retaining wall effect simultaneously, mud jacking, retaining wall, boring and deslagging are finished boring like this; When roadbed material when being clay and top tube diameter more than or equal to the roadbed of 200mm, because top tube diameter is bigger, the difficult control of the precision of push pipe.During boring, drill bit earlier is cross formula cutter saddle and the transition conduit boring location of 114mm by diameter, comes reaming by diameter greater than the reaming knife rest of 200mm again.Adopt the guide pipe of certain-length can allow drill bit keep holing, guarantee to hole straight and precision push pipe along the direction of push pipe axis.Because of the diameter of guide pipe is bigger, can play crushing during rotation, so no longer establish the mud jacking ring.Location drilling, mud jacking, reaming, retaining wall and deslagging are finished boring like this.In addition, all be welded with wear-resisting carbide alloy bloom on the blade of the cutter saddle of all drill bits and reaming knife rest etc., this carbide alloy bloom is used to cut or grinding roadbed material and application life of prolonging drill bit.
The locating rack that employing is placed on roadbed side slope or the toe is located to drill bit, and weight or wobble effects push pipe precision because of drill bit are avoided in the boring of spudding on the location-plate of this locating rack of drill bit frame.Before the boring, the drilling rod furnishing of rig is level to facing upward 0 °～5 ° degree angle, is corrected in the amount of and drill bit heavier generation tenesmus elongated under the action of gravity, to guarantee the precision of push pipe because of drilling rod according to push pipe length, top tube diameter and roadbed material etc.
Effect of the present invention
The present invention can carry out the construction of boring method small-caliber horizontal jacking pipe on dissimilar roadbed such as different materials such as rock, highly weathered rock, enrockment, gravel, silt, flyash and clay and excavation or embankment etc. target drill, their simple structure, easy to operate, that efficient is high, the life-span is long, support device reaches cost less is low, is applicable to that top tube diameter is the construction of laying engineerings such as lateral communications pipeline or transverse drainage in 100～300mm and the maximum push pipe length highway subgrade that is 50m.
Description of drawings
The small-caliber horizontal jacking pipe drum type brake cutter saddle drill bit of Fig. 1 rock, enrockment or gravel roadbed is faced structural representation.
Fig. 2 rock, enrockment or gravel roadbed small-caliber horizontal jacking pipe drum type brake cutter saddle drill bit plan structure schematic diagram.
Fig. 3 rock, enrockment or gravel roadbed small-caliber horizontal jacking pipe drum type brake cutter saddle drill bit front side TV structure schematic diagram.
The mud jacking ring side-looking structural representation of Fig. 4 rock, enrockment or gravel roadbed small-caliber horizontal jacking pipe drum type brake cutter saddle drill bit.
The guide pipe side-looking structural representation of Fig. 5 rock, enrockment or gravel roadbed small-caliber horizontal jacking pipe drum type brake cutter saddle drill bit.
Fig. 6 rock, enrockment or gravel roadbed small-caliber horizontal jacking pipe drum type brake cutter saddle drill bit rear side viewing structural representation.
Fig. 7 highly weathered rock roadbed small-caliber horizontal jacking pipe star formula cutter saddle drill bit is faced structural representation.
Fig. 8 highly weathered rock roadbed small-caliber horizontal jacking pipe star formula cutter saddle drill bit plan structure schematic diagram.
Fig. 9 highly weathered rock roadbed small-caliber horizontal jacking pipe star formula cutter saddle drill bit front side TV structure schematic diagram.
The mud jacking ring side-looking structural representation of Figure 10 highly weathered rock roadbed small-caliber horizontal jacking pipe star formula cutter saddle drill bit.
The guide pipe side-looking structural representation of Figure 11 highly weathered rock roadbed small-caliber horizontal jacking pipe star formula cutter saddle drill bit.
Figure 12 highly weathered rock roadbed small-caliber horizontal jacking pipe star formula cutter saddle drill bit rear side viewing structural representation.
Figure 13 silt or flyash roadbed small-caliber horizontal jacking pipe cross bevel-type cutter saddle drill bit are faced structural representation.
Figure 14 silt or flyash roadbed small-caliber horizontal jacking pipe cross bevel-type cutter saddle drill bit plan structure schematic diagram.
Figure 15 silt or flyash roadbed small-caliber horizontal jacking pipe cross bevel-type cutter saddle drill bit front side TV structure schematic diagram.
The mud jacking ring side-looking structural representation of Figure 16 silt or flyash roadbed small-caliber horizontal jacking pipe cross bevel-type cutter saddle drill bit.
The guide pipe side-looking structural representation of Figure 17 silt or flyash roadbed small-caliber horizontal jacking pipe cross bevel-type cutter saddle drill bit.
Figure 18 silt or flyash roadbed small-caliber horizontal jacking pipe cross bevel-type cutter saddle drill bit rear side viewing structural representation.
Figure 19 clay roadbed small-caliber horizontal jacking pipe cross formula cutter saddle drill bit is faced structural representation.
Figure 20 clay roadbed small-caliber horizontal jacking pipe cross formula cutter saddle drill bit plan structure schematic diagram.
Figure 21 clay roadbed small-caliber horizontal jacking pipe cross formula cutter saddle drill bit front side TV structure schematic diagram.
The mud jacking ring side-looking structural representation of Figure 22 clay roadbed small-caliber horizontal jacking pipe cross formula cutter saddle drill bit.
The guide pipe side-looking structural representation of Figure 23 clay roadbed small-caliber horizontal jacking pipe cross formula cutter saddle drill bit.
Figure 24 clay roadbed small-caliber horizontal jacking pipe cross formula cutter saddle drill bit rear side viewing structural representation.
Figure 25 clay roadbed small-caliber horizontal jacking pipe increases joins reaming knife rest drill bit and faces structural representation.
Figure 26 clay roadbed small-caliber horizontal jacking pipe increases joins reaming knife rest drill bit plan structure schematic diagram.
Figure 27 clay roadbed small-caliber horizontal jacking pipe increases joins reaming knife rest drill bit side-looking structural representation.
Figure 28 clay roadbed small-caliber horizontal jacking pipe increases the transition conduit side-looking structural representation of joining reaming knife rest drill bit.
Figure 29 clay roadbed small-caliber horizontal jacking pipe increases the reaming knife rest side-looking structural representation of joining reaming knife rest drill bit.
Figure 30 clay roadbed small-caliber horizontal jacking pipe increases the guide pipe side-looking structural representation of joining reaming knife rest drill bit.
The specific embodiment
Referring to Fig. 1～30.Five kinds of target drills of highway subgrade of the present invention small-bore horizontal jacking pipe construction have comprised drum type brake cutter saddle 1, star formula cutter saddle 2, cross bevel-type cutter saddle 3, cross formula cutter saddle 4, reaming knife rest 5, have penetrated and starch hole 6, feed pipe for mortar 7, disconnected stone core card 8, mud jacking ring 9, guide pipe 10, transition conduit 11, tool joint 12 and carbide alloy bloom 13.After position, axis and the absolute altitude etc. of the push pipe of highway lateral communications pipeline or transverse drainage pipeline etc. are measured setting-out, dig out the platform of placing the drill bit locating rack on roadbed side slope or slope angle, the base plate of locating rack is placed on this platform reposefully.On roadbed side slope or toe, dig out the machine hole of rig, hang in and rigging up with automobile crane.Select target drill according to top tube diameter, roadbed type and roadbed material, the drilling rod furnishing of rig is level slightly to the angle of facing upward, the drill bit frame is on the location-plate of locating rack, and mixer spuds in after stirring special-purpose mud jacking material.When roadbed is rock, enrockment or gritting material, selects for use by drum type brake cutter saddle 1, penetrate the drum type brake drill bit that slurry hole 6, feed pipe for mortar 7, disconnected stone core card 8, mud jacking ring 9, guide pipe 10 and tool joint 12 are formed; When roadbed is the strong-weathered rock stone material, selects for use by star formula cutter saddle 2, penetrate the star formula drill bit that slurry hole 6, feed pipe for mortar 7, disconnected stone core card 8, mud jacking ring 9, guide pipe 10 and tool joint 12 are formed; When roadbed is silt or fly ash material, selects for use by cross bevel-type cutter saddle 3, penetrate the cross bevel-type drill bit that slurry hole 6, feed pipe for mortar 7, mud jacking ring 9, guide pipe 10 and tool joint 12 are formed; When roadbed is clay material and top tube diameter during less than 200mm, select for use by cross formula cutter saddle 4, penetrate the cross formula drill bit that slurry hole 6, feed pipe for mortar 7, mud jacking ring 9, guide pipe 10 and tool joint 12 are formed; When roadbed is clay material and top tube diameter during greater than 200mm, select for use by diameter to be 114mm cross formula cutter saddle 4, to penetrate the cross formula that slurry hole 6, feed pipe for mortar 7, transition conduit 11, reaming knife rest 5, guide pipe 10 and tool joint 12 form and join reaming knife rest drill bit.Creep into drill bit on the limit, the limit with slush pump by the feed pipe for mortar in madjack pipe, drilling rod and the drill bit 7 and penetrate slurry hole 6 and be pressed into mud jacking material retaining wall and deslagging to roadbed boring.Drill bit withdraws from drilling rod and drill bit after getting out from the communication cable well of opposite side roadbed side slope or median strip and collecting well.Jack with rig heads into steel pipe, and electric welding machine firm welding and sealing must be used in the junction of every steel pipe.Be pressed into the closely knit of soil cement slurry or clay mortar recovery roadbed at steel pipe and hole wall gap, steel pipe seals with cement mortar is floating in the outside of roadbed import and export.Finish whole jacking constructions when the time comes.
The effect of the drum type brake cutter saddle 1 of drill bit is rock cutting, enrockment or sand-gravel road sill; The effect of star formula cutter saddle 2 is grinding highly weathered rock roadbed materials, also can be used to grinding rock, enrockment or sand-gravel road sill sometimes; The effect of cross bevel-type cutter saddle 3 is cutting silt and flyash roadbed material; The effect of cross formula cutter saddle 4 and reaming knife rest 5 is cutting clay roadbed materials.The effect of penetrating slurry hole 6 is to eject the mud jacking material to come clear drill bit, retaining wall and deslagging; The effect of feed pipe for mortar 7 is the mud jacking material to be transported to from bit adapter 12 penetrate slurry mouth 6.The effect of disconnected stone core card 8 is after boring the fully-jewelled head, and disconnected stone core card 8 co-operation are blocked Shi Xin, allows the drill bit that rotates can twist off Shi Xin automatically more reliably.The effect of mud jacking ring 9 is that the mud jacking material is pressed into the roadbed borehole wall-protection and helps deslagging.The effect of guide pipe 10 is to guarantee the straight and push pipe precision of boring, allows drill bit hole along the push pipe center line of design.The effect of tool joint 12 is that drill bit is connected with drilling rod, and carries the mud jacking material.The effect of transition conduit 11 is cross formula cutter saddle 4 linkage sections to reaming knife rest 5, guarantees cross formula cutter saddle 4 boring locating accuracy.After the effect of reaming knife rest 5 was the cross formula cutter saddle 4 boring location of minor diameter, reaming became the boring greater than the 200mm diameter.The effect of carbide alloy bloom 13 is cutting and grinding roadbed material, prolongs drilling life of bit.The effect that 8 blades that are welded with hard alloy steel 13 are set on the guide pipe 10 rear end circular cone table tops of drum type brake drill bit and star formula drill bit is the stone of grinding roadbed hole wall slump, prevents that bit freezing from maybe can't withdraw from drill bit.
In addition, the effect of the location-plate of drill bit locating rack is to allow drill bit spud in above leaning against, and guarantees the initial bore hole locating accuracy.The effect of clay mortar hydraulic pressure pulp material is the great and big easy-to-discharge slag of buoyancy of retaining wall and Yin Bi.The effect of mixing the soil cement slurry mud jacking material of quick setting admixture is the slit of infiltrating push pipe place roadbed material, and roadbed material is rapidly solidificated into integral body, guarantees to have stable road structure to hole smoothly.
Top tube diameter involved in the present invention generally is 100～300mm.
The concrete use
1, position, axis and the absolute altitude etc. to push pipes such as horizontal communication pipe or drainage pipes are measured setting-out on highway.
2, on roadbed side slope or toe, dig out the machine hole of rig, hang in and rigging up with automobile crane.
3, dig the deslagging pond, fills with water in the pond.
4, dig out the platform of placing the drill bit locating rack in the side slope of roadbed or the position of pushing tube of slope angle.
5, look top tube diameter, push pipe length and roadbed material, the drilling rod of adjusting rig is level slightly to the angle of facing upward.
6, the madjack pipe of slush pump is connected with the drilling rod of rig.
7, select target drill according to top tube diameter, roadbed type and roadbed material, and be installed on the drilling rod of rig.
8, on the platform of roadbed side slope or slope angle, place the drill bit locating rack, the drill bit frame on this locating rack.
9, mixer stirring and slush pump are carried special-purpose mud jacking material.
10, spud in.
11 if rock excavation roadbed, gets piecemeal with the drum type brake drill bit that Shi Xin creeps into and clay mud pulp-water deslagging, until pore-forming; If highly weathered rock excavation roadbed, piecemeal be pressed into the soil cement slurry retaining wall of mixing quick setting admixture, creep into and clay mud pulp-water deslagging with star formula drill bit the back of condensing, until pore-forming; If enrockment filled-up ground or gravel roadbed, piecemeal be pressed into the soil cement slurry retaining wall of mixing quick setting admixture, the back of condensing get piecemeal with the drum type brake drill bit that Shi Xin creeps into and clay mud pulp-water deslagging, until pore-forming; If the filled-up ground of silt or flyash adopts cross bevel-type drill bit limit to be pressed into clay mud pulp-water retaining wall, limit boring, the limit deslagging is until pore-forming; If the clay roadbed adopts cross formula or cross formula to join reaming knife rest drill bit limit and is pressed into clay mud pulp-water retaining wall, limit boring, the limit deslagging is until pore-forming.
12, behind the pore-forming, head into steel pipe with the jack of rig, the junction of every steel pipe is with electric welding machine firm welding and sealing.
13, be pressed into soil cement slurry or clay mortar in the gap of steel pipe and roadbed hole wall and recover the closely knit of roadbed, and steel pipe seals with cement mortar is floating in the outside of roadbed import and export.
14, finish whole jacking constructions when the time comes.
Claims (7)
1. the boring method of roadbed small-caliber horizontal jacking pipe is characterized in that: after position, axis and the level measurement setting-out to the push pipe of the lateral communications pipeline of highway or transverse drainage pipeline, place the drill bit locating rack at the position of pushing tube of roadbed side slope; Dig out the machine hole of rig on the side slope of roadbed or the toe, use the automobile crane rigging up; Select to be suitable for drill bit according to the diameter of push pipe, roadbed type and roadbed material, the drilling rod furnishing of rig is level slightly to the angle of facing upward, the drill bit frame is on locating rack, and mixer spuds in after stirring special-purpose mud jacking material; The limit bit bore, the limit slush pump is pressed into mud jacking material retaining wall and deslagging by the stock line in the drill bit to roadbed boring; Drill bit withdraws from drilling rod and drill bit after getting out from the communication cable well of side slope, toe or the median strip of opposite side roadbed or collecting well; Jack with rig heads into steel pipe in roadbed boring, electric welding machine firm welding and sealing must be used in the junction of every steel pipe; At steel pipe and roadbed drill hole wall gap is pressed into soil cement slurry or clay mortar tamps, steel pipe seals with cement mortar is floating in the outside of roadbed import and export;
Described drill bit, including the cutter saddle, the cross section that are weldingly connected successively is oval-shaped mud jacking ring, guide pipe, the end of guide pipe is connected with the tube drilling rod joint, in mud jacking ring and the guide pipe feed pipe for mortar is installed, feed pipe for mortar one end and tool joint UNICOM, the slurry hole of penetrating on the other end and the cutter saddle links;
(1), described cutter saddle selects the drum type brake cutter saddle for use, on the inwall of described drum type brake cutter saddle rear end disconnected stone core card arranged; The length of guide pipe is greater than 6 times push pipe diameter of steel tube, and is not less than 1.0m; 8 blades are arranged on the rear end face of guide pipe, be welded with the carbide alloy bloom on the blade; Select the drill bit of drum type brake cutter saddle for use, be used for the boring of rock subgrade push pipe, the limit drill bit creeps into limit clay mud pulp-water deslagging, after boring full whole drill bit, disconnected stone core card in the drum type brake cutter saddle twists off Shi Xin automatically, drill bit is withdrawed from boring take out the stone core, mud jacking, boring, deslagging and get core and repeat like this get out from the communication cable well of side slope, toe or the median strip of opposite side roadbed or collecting well until drill bit; When being used for the boring of enrockment or gravel roadbed push pipe, before the boring, earlier be pressed into the soil cement slurry of mixing quick setting admixture at the enrockment of roadbed position of pushing tube or the gap of gravel, treat that enrockment or gravel are frozen into integral body after, use bit bore again, and with clay mud pulp-water deslagging; After boring full whole drill bit, the disconnected stone core card in the drum type brake cutter saddle twists off Shi Xin automatically, drill bit is withdrawed from boring take out the stone core, until this section of condensing has been bored; From second section boring, allow the empty limit of boring, drill bit limit be pressed into the soil cement slurry of mixing quick setting admixture earlier, by the mud jacking ring soil cement slurry is pressed into the roadbed drill hole wall; After treating the soil cement slurry initial set, withdraw from the clear hole of drill bit at a slow speed, prevent to block the boring and the drill bit that clogs; After treating soil cement slurry final set, carry out roadbed boring again and be pressed into clay mud pulp-water deslagging; Like this mud jacking, solidify, clear hole, boring, deslagging and get core and repeat piecemeal, get out from the communication cable well of opposite side roadbed side slope, toe or median strip or collecting well until drill bit; After withdrawing from drill bit and drilling rod, head into steel pipe with the jack of rig; Perhaps
(2), described cutter saddle selects star formula cutter saddle for use, the length of guide pipe is greater than 10 times push pipe diameter of steel tube, and is not less than 2.0m; 8 blades are arranged on the rear end face of guide pipe, be welded with the carbide alloy bloom on the blade; Select drill bit with star formula cutter saddle, be applicable to the boring of highly weathered rock roadbed push pipe, before the boring, elder generation is pressed into the soil cement slurry of mixing quick setting admixture in the crack of the strong-weathered rock of roadbed position of pushing tube, after treating that highly weathered rock is frozen into integral body, again with bit bore and with clay mud pulp-water deslagging, until this section of condensing has been bored; From second section boring, the drill bit empty limit of boring in first limit is pressed into the soil cement slurry of mixing quick setting admixture, by the mud jacking ring soil cement slurry is pressed into the roadbed drill hole wall; After treating the soil cement slurry initial set, withdraw from the clear hole of drill bit at a slow speed, prevent to block the boring and the drill bit that clogs; After treating soil cement slurry final set, hole again and be pressed into clay mud pulp-water deslagging; Like this mud jacking, solidify, retaining wall, clear hole, boring and deslagging repeat piecemeal, get out from the communication cable well of side slope, toe or the median strip of opposite side roadbed or collecting well until drill bit; After withdrawing from drill bit and drilling rod, head into steel pipe with the jack of rig; Perhaps
(3), described cutter saddle selects cross bevel-type cutter saddle for use, the length of guide pipe is greater than 10 times push pipe diameter of steel tube, and is not less than 2.0m; Select the drill bit with cross bevel-type cutter saddle, be applicable to the boring of silt or flyash roadbed push pipe, during boring, drill bit is penetrated the slurry hole and is penetrated the clay mud pulp-water while creeping into, and the limit is pressed into roadbed retaining wall and deslagging to mud by the mud jacking ring; Boring like this, mud jacking, retaining wall and deslagging get out from the communication cable well of side slope, toe or the median strip of opposite side roadbed or collecting well until drill bit; After withdrawing from drill bit and drilling rod, head into steel pipe with the jack of rig; Perhaps
(4), described cutter saddle selects cross formula cutter saddle for use, the length of guide pipe is greater than 10 times push pipe diameter of steel tube, and is not less than 2.0m; Select the drill bit of cross formula cutter saddle for use, be applicable to the boring of clay roadbed push pipe, during boring, drill bit is penetrated the slurry hole and is penetrated the clay of clay mud pulp-water removing paste on drill bit while creeping into, and the limit is gone into roadbed retaining wall and deslagging to clay mortar hydraulic pressure by the mud jacking ring; Boring like this, mud jacking, retaining wall and deslagging get out from the communication cable well of side slope, toe or the median strip of opposite side roadbed or collecting well until drill bit; After withdrawing from drill bit and drilling rod, head into steel pipe with the jack of rig.
2. the boring method of roadbed small-caliber horizontal jacking pipe according to claim 1, it is characterized in that: described cross bevel-type cutter saddle is the cross cone-shaped that is 30 °～60 ° of cone angles, the blade of cross awl is vertical mutually, is welded with the carbide alloy bloom on the blade; Described cross formula cutter saddle is a cross shape, and the blade of cross is vertical mutually and one is long and the other is short, and the rimmer knife sword grows 6cm～10cm than short sword sword, is welded with the carbide alloy bloom on the blade of cross formula cutter saddle front end and outer ledge.
3. the boring method of roadbed small-caliber horizontal jacking pipe according to claim 1, it is characterized in that: the diameter of described cutter saddle and guide pipe is greater than push pipe diameter of steel tube 5%～15%; The cross section of described mud jacking ring is an elliptical shape, and the long diameter of its ellipse is equal to the diameter of guide pipe, and short diameter is 0.85～0.95 times of long diameter; Described guide pipe rear end is the truncated cone shape that is 30 °～45 ° of cone angles; The screw thread that is connected with drilling rod is arranged in the described tool joint, and this joint is concentric with the drill bit axis.
4. the boring method of roadbed small-caliber horizontal jacking pipe according to claim 1, it is characterized in that: the cutter saddle of described drill bit, disconnected stone core card, the material of penetrating slurry hole, feed pipe for mortar, mud jacking ring and guide pipe are steel, and the material of tool joint is a cast steel.
5. the boring method of roadbed small-caliber horizontal jacking pipe is characterized in that: after position, axis and the level measurement setting-out to the push pipe of the lateral communications pipeline of highway or transverse drainage pipeline, place the drill bit locating rack at the position of pushing tube of roadbed side slope; Dig out the machine hole of rig on the side slope of roadbed or the toe, use the automobile crane rigging up; Select to be suitable for drill bit according to the diameter of push pipe, roadbed type and roadbed material, the drilling rod furnishing of rig is level slightly to the angle of facing upward, the drill bit frame is on locating rack, and mixer spuds in after stirring special-purpose mud jacking material; The limit bit bore, the limit slush pump is pressed into mud jacking material retaining wall and deslagging by the stock line in the drill bit to roadbed boring; Drill bit withdraws from drilling rod and drill bit after getting out from the communication cable well of side slope, toe or the median strip of opposite side roadbed or collecting well; Jack with rig heads into steel pipe in roadbed boring, electric welding machine firm welding and sealing must be used in the junction of every steel pipe; At steel pipe and roadbed drill hole wall gap is pressed into soil cement slurry or clay mortar tamps, steel pipe seals with cement mortar is floating in the outside of roadbed import and export;
Described drill bit, include the cross formula cutter saddle, transition conduit, reaming knife rest and the guide pipe that are weldingly connected successively, the end of guide pipe is connected with the tube drilling rod joint, described guide pipe is thicker than transition conduit, in transition conduit, reaming knife rest, the guide pipe feed pipe for mortar is installed, feed pipe for mortar one end and tool joint UNICOM, the slurry hole of penetrating on the other end and the cutter saddle links;
Described reaming knife rest diameter is 1.7～2.7 times of cross formula cutter saddle diameter, and the guide pipe diameter is identical with reaming knife rest diameter, and the diameter of reaming knife rest and guide pipe is greater than push pipe diameter of steel tube 5%～10%; Described guide pipe rear end is the truncated cone shape that presents 30 °～45 ° of cone angles; The screw thread that is connected with drilling rod is arranged in the described tool joint, and this joint is concentric with the drill bit axis.
6. the boring method of roadbed small-caliber horizontal jacking pipe according to claim 5, it is characterized in that: described cross formula cutter saddle is a cross shape, the blade of cross is vertical mutually and one is long and the other is short, the rimmer knife sword grows 6cm～10cm than short sword sword, is welded with the carbide alloy bloom on the blade of cross formula cutter saddle front end and outer ledge; The transition conduit diameter is identical with cross formula cutting frame diameter, and transition conduit length is 0.6～1.0m; The reaming knife rest is the truncated cone shape that is 30 °～45 ° of cone angles, is being evenly distributed 8 blades on the circular cone table top, is welded with the carbide alloy bloom on the blade; The length of guide pipe is greater than 6 times push pipe diameter of steel tube, and is not less than 1.5m.
7. the boring method of roadbed small-caliber horizontal jacking pipe according to claim 5, it is characterized in that: the cutter saddle of described drill bit, the material of penetrating slurry hole, feed pipe for mortar, transition conduit, reaming knife rest and guide pipe are steel, and the material of tool joint is a cast steel.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2007101349946A CN101158269B (en) | 2007-11-01 | 2007-11-01 | Method for drilling roadbed small-caliber horizontal jacking pipe and drill bit |
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| CN2007101349946A CN101158269B (en) | 2007-11-01 | 2007-11-01 | Method for drilling roadbed small-caliber horizontal jacking pipe and drill bit |
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| CN101158269B true CN101158269B (en) | 2010-09-22 |
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| CN102767337B (en) * | 2012-08-11 | 2015-09-02 | 威海市水利岩土工程有限公司 | The construction method of a kind of sleeve type helical stake machine drill head and rid |
| CN106195442A (en) * | 2016-08-25 | 2016-12-07 | 马轩 | A kind of pusher push pipe head |
| CN108266202A (en) * | 2018-03-28 | 2018-07-10 | 中铁上海工程局集团有限公司 | Rectangular pipe jacking machine excavation face blind area breaker and its method |
| CN108825137B (en) * | 2018-06-26 | 2020-01-10 | 邹城兖矿泰德工贸有限公司 | Hard rock coating drill bit |
| CN111457156B (en) * | 2020-04-14 | 2021-09-03 | 重庆水务集团股份有限公司 | Water delivery pipe mountain penetrating equipment |
| CN112727489B (en) * | 2021-02-02 | 2024-04-19 | 中山大学河南研究院 | Jacking pipe grouting construction method and jacking pipe assembly |
| CN114109428A (en) * | 2021-11-10 | 2022-03-01 | 中国市政工程西南设计研究总院有限公司 | Pebble layer pipe jacking structure and pebble layer pipe jacking construction method |
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