阅读说明：本技术 市政污水管道非开挖施工方法 (Municipal wastewater pipeline non-excavating construction method ) 是由 曾建锋 于 2019-08-23 设计创作，主要内容包括：本发明涉及一种市政排污管道非开挖施工方法,该施工方法适用于短程、工期短的市政排污管道施工,且适用于土壤地形复杂的施工情况。混凝土管道始终与钻杆前端套接,从而通过钻杆对混凝土管道进行定位,减少混凝土管道偏移和土壤突然塌陷的情况,使混凝土管道更容易沿预定路线贯通至接收井内。其中通过铰刀和高压水枪配合提高了对混凝土管道内的土方的开挖和运输效率,从而提高了顶管施工整体的施工效率,缩短工期,适用于短程和地质较为复杂、土壤支撑力较差的施工情况。并且将铰刀与钻杆同轴转动,减少了驱动件的使用,进而节约了施工成本。(The present invention relates to a kind of municipal blow-off line non-excavating construction method, which is suitable for the municipal blow-off line construction of short distance, short time limit, and is suitable for the condition of construction of soil relief complexity.Concrete duct is socketed with drilling rod front end always, to position by drilling rod to concrete duct, reduces the case where concrete duct offset collapses suddenly with soil, concrete duct is made to be easier to penetrate through along projected route to received well.Excavation and conevying efficiency to the earthwork in concrete duct are wherein improved by reamer and giant cooperation, to improve the construction efficiency of jacking construction entirety, it shortens the construction period, the condition of construction complex suitable for short distance and geology, soil support force is poor.And reamer and drilling rod are rotated coaxially, the use of actuator is reduced, and then has saved construction cost.)

1. a kind of municipal wastewater pipeline non-excavating construction method, it is characterized in that: the following steps are included:

A. active well (1) and received well (2) are excavated: according to design pipe centerline and end positions, in selected construction location Downward excacation well (1) and received well (2)；

B. crane (3) is installed: setting up moveable crane (3) above active well (1) and received well (2)；

C. interior push pipe jacking device (11) installation of active well (1): it is laid with rubble in active well (1) bottom, buries a tree, used in making timber for boats in rubble Wood is installed water storage tank (12) on a tree, used in making timber for boats wood, is horizontally mounted on water storage tank (12) push pipe guide rail (13), and along push pipe guide rail (13) side To installation push pipe jacking device (11), push pipe jacking device (11) is provided with the first jack (14), active well (1) side wall It is upper that the rear parados for being used to support the first jack (14) is set；

D. the interior drilling rod jacking device installation of received well (2): it is laid with rubble in received well (2) bottom, a tree, used in making timber for boats wood, a tree, used in making timber for boats are buried in rubble Drill bit (41) jacking device (21) is installed, drill bit (41) jacking device (21) is provided with the second jack (22), described to connect on wood The rear parados that setting on well (2) side wall is used to support the second jack (22) is received, the second jack (22) is square towards active well (1) To jacking, the second jack (22) extension end is fixed with driving motor (23)；

E. first section first section drilling rod monomer (4) jacking: is equipped with to drilling rod monomer (4) and driving motor (23) of drill bit (41) Driving end is fixed, and by drill bit (41) jacking device (21) jacking, in the received well for being located at first section drilling rod monomer (4) front end (2) location hole that one 30~50 centimetres of depth are excavated on side wall, passes through drill bit (41) jacking device (21) and driving motor (23) Head is saved drilling rod monomer (4) jacking tunnel, so repeatedly jacking by cooperation, until head section drilling rod monomer (4) jacking completely is received Well (2) side wall；

F. drilling rod runs through active well (1): again in driving motor (23) He Shoujie drilling rod monomer after head section drilling rod monomer (4) jacking (4) next section drilling rod monomer (4) is placed between, and new drilling rod monomer (4) both ends are bored with driving motor (23) and first section respectively Bar monomer (4) is fixedly connected, and repeats drill bit (41) jacking device (21) and driving motor (23) cooperation jacking drilling rod monomer (4), until first section drilling rod monomer (4) runs through active well (1) side wall；

G. first section concrete duct (5) jacking: head section concrete duct (5) is placed on push pipe guide rail (13), and passes through top Pipe jacking device (11) jacking, excavated on active well (1) side wall for being located at first section concrete duct (5) front end a depth 30~ 50 centimetres, section configuration and the identical tunnel of first section concrete duct (5), tunnel are arranged concentrically with drilling rod, pass through push pipe jacking Head is saved concrete duct (5) jacking tunnel by equipment (11)；

H. the drill bit (41) of drilling rod front end concrete duct (5) interior earth excavation: is removed and replaced to reamer (51), push pipe First section concrete duct (5) is continued jacking, and giant (52) direction hinge in first section pipe of concrete by jacking device (11) Knife (51) water spray, drilling rod is under the cooperation of drilling rod jacking device and driving motor (23) to the direction far from active well (1) at this time Mobile, concrete duct (5) is identical with the rate travel of drilling rod；

I. concrete duct (5) runs through received well (2): putting on push pipe guide rail (13) again after head section concrete duct (5) jacking Next section concrete duct (5) is set, and repeats jacking tube road and exits drilling rod, reamer (51) and giant (52) continue work Make, by (5) jacking of all concrete ducts until first section concrete duct (5) runs through received well (2)；

J. concrete duct (5) connects: all concrete ducts (5) being connected and held out against by concrete bell-and-spigot pipe structure, are mixed Ring-like rubber ring is set between the socket and bellmouth of solidifying soil bell-and-spigot pipe structure, any two neighboring concrete duct (5) after holding out against Nozzle on the inside of stay the hole between the gap and two pipes of 10~20mm to be 10~15mm；Concrete duct (5) passes through mixed after holding out against The reserved mud jacking hole of solidifying soil pipeline (5) carries out pipeline slip casting.

2. municipal wastewater pipeline non-excavating construction method according to claim 1, it is characterized in that: on the water storage tank (12) Side opening setting, the push pipe guide rail (13) be fixed on water storage tank (12) upper opening two sides and with the concrete duct (5) Outer peripheral surface fitting.

3. municipal wastewater pipeline non-excavating construction method according to claim 2, it is characterized in that: the water storage tank (12) is even It is connected with outlet pipe (121), outlet pipe (121) other end is connected to the mortar pump (122) being placed on the ground.

4. municipal wastewater pipeline non-excavating construction method according to claim 1, it is characterized in that: the first section pipe of concrete Road (5) inner peripheral surface is fixedly connected with 120 ° of support leg (53) circumferentially spaced apart, the spray head of the giant (52) and institute Support leg (53) are stated to fix and be arranged towards the reamer (51).

5. municipal wastewater pipeline non-excavating construction method according to claim 1, it is characterized in that: the reamer (51) penetrates through If there is dry cutting mouth (511), angularly circumference is arranged between the cutting mouth (511), and the cutting mouth (511) connects described in The side for receiving well (2) is fixed with the bite (512) of arc.

6. municipal wastewater pipeline non-excavating construction method according to claim 1, it is characterized in that: the drilling rod monomer (4) Outer peripheral surface offers external screw thread, and the external screw thread of adjacent drilling rod monomer (4) is interconnected.

7. municipal wastewater pipeline non-excavating construction method according to claim 1, it is characterized in that: the drilling rod monomer (4) One end protrusion be fixed with cross connector (42), the other end offer with the connector (42) shape cooperation connection Mouth (43), the adjacent drilling rod monomer (4) is mating by connector (42) and connector (43), the adjacent drilling rod monomer (4) fixing piece is fixed between.

8. municipal wastewater pipeline non-excavating construction method according to claim 7, it is characterized in that: the driving motor (23) Driving end be provided with the shackle member (231) mating with the connector (43), the shackle member (231) and adjacent institute It states and is fixed with fixing piece between drilling rod monomer (4).

9. municipal wastewater pipeline non-excavating construction method according to claim 7, it is characterized in that: the drill bit (41), hinge One end of knife (51) towards drilling rod monomer (4) offers the card interface (44) with the cooperation of connector (42) shape.

Technical field

The present invention relates to the technical fields of tunnelling technology, more particularly, to a kind of municipal wastewater pipeline non-excavating construction Method.

Background technique

The construction method of non-excavation laying pipeline includes pipe jacking construction method at present, can opened less by the construction method It digs or carries out piping laying in the case where not excavating.Pipe jacking construction method at work, push-bench generate top power for gram Pipeline is headed by the gradient of design into soil layer, and the earthwork is transported by the frictional force for taking pipeline and surrounding soil.Tool Pipe or push-bench, which pass through soil layer out of working pit and be advanced to always in reception hole, to be sling, and with the work of push-bench, pipeline will be by Soil layer is passed through in active well to enter in received well.After pipeline follows tool pipe or development machine closely, it is embedded between two holes.

But during actual construction, due to the difference of construction site geographical environment, more place is when implementing jacking construction It is all more troublesome, such as the drift sand geology of looseness of soil, head jacking rear stability is poor, and easily occurs head displacement in push pipe The problem of with push pipe deviation, also easily damages between push pipe, brings inconvenience to jacking construction, reduces construction efficiency, therefore There are rooms for improvement.

Summary of the invention

In view of the deficiencies of the prior art, the present invention intends to provide a kind of municipal wastewater pipeline non-excavating construction Method,

To achieve the above object, the present invention provides the following technical scheme that

A kind of municipal wastewater pipeline non-excavating construction method, comprising the following steps:

A. active well and received well are excavated: according to design pipe centerline and end positions, being dug downwards in selected construction location Dig active well and received well；

B. crane is installed: moveable crane is set up above active well and received well；

C. push pipe jacking device is installed in active well: being laid with rubble in work bottom, a tree, used in making timber for boats wood is buried in rubble, is pacified on a tree, used in making timber for boats wood Water storage tank is filled, push pipe guide rail is horizontally mounted on water storage tank, and push pipe jacking device, push pipe jacking are installed along push pipe guide rail direction Equipment is provided with the first jack, and setting is used to support the rear parados of the first jack on the active well side wall；

D. drilling rod jacking device is installed in received well: being laid with rubble receiving bottom, a tree, used in making timber for boats wood is buried in rubble, is pacified on a tree, used in making timber for boats wood Drill bit jacking device is filled, drill bit jacking device is provided with the second jack, and setting is used to support second on the received well side wall The rear parados of jack, the second jack are fixed with driving motor towards the jacking of active well direction, the second jack extension end；

E. first section drilling rod monomer jacking: the driving end of drilling rod monomer and driving motor that first section is equipped with drill bit is fixed, and is led to Drill bit jacking device jacking is crossed, excavates one 30~50 centimetres of depth on the received well side wall for being located at first section drilling rod monomer front end Location hole is cooperated by drill bit jacking device and driving motor by head section drilling rod monomer jacking tunnel, so repeatedly jacking, until Head is saved into the complete jacking received well side wall of drilling rod monomer；

F. drilling rod runs through active well: under placing between driving motor and first section drilling rod monomer again after head section drilling rod monomer jacking New drilling rod monomer both ends are fixedly connected with driving motor and first section drilling rod monomer respectively, and repeat to bore by one section drilling rod monomer Head jacking device and driving motor cooperate jacking drilling rod monomer, until first section drilling rod monomer runs through active well side wall；

G. first section concrete duct jacking: head section concrete duct is placed on push pipe guide rail, and passes through push pipe jacking device Jacking excavates 30~50 centimetres of a depth, section configuration and head on the active well side wall positioned at first section concrete duct front end The identical tunnel of concrete duct is saved, tunnel is arranged concentrically with drilling rod, and head is saved concrete duct top by push pipe jacking device Into tunnel；

H. earth excavation in concrete duct: the drill bit of drilling rod front end is removed and replaced to reamer, push pipe jacking device will be first Section concrete duct continues jacking, and giant is sprayed water towards reamer in first section pipe of concrete, and drilling rod is on drilling rod top at this time It is mobile to the direction far from active well under into the cooperation of equipment and driving motor, the rate travel phase of concrete duct and drilling rod Together；

I. concrete duct runs through received well: placing next section coagulation on push pipe guide rail again after head section concrete duct jacking Native pipeline, and repeat jacking tube road and exit drilling rod, reamer and giant continue working, and all concrete duct jackings are straight Run through received well to head section concrete duct；

J. concrete duct connects: all concrete ducts being connected and held out against by concrete bell-and-spigot pipe structure, concrete is held Ring-like rubber ring is set between the socket and bellmouth of cannula structures, on the inside of the nozzle for holding out against rear any two neighboring concrete duct Staying the hole between the gap of 10~20mm and two pipes is 10~15mm；What concrete duct was reserved after holding out against by concrete duct Mud jacking hole carries out pipeline slip casting.

By above-mentioned setting, which is suitable for the municipal blow-off line construction of short distance, short time limit, and is suitable for soil Earth condition of construction with a varied topography.By designing the length of pipeline and the position of pipe ends, generally make the both ends for designing pipeline Across complicated landform, so that the position of active well and received well be made to be in above relatively stable soil environment.Excavate active well With moveable crane is set up after received well above active well and received well, by crane carry out equipment lifting, Transport etc..Then push pipe jacking device and drilling rod jacking device are installed respectively in active well and received well, wherein shaft bottom is laid with Rubble and a tree, used in making timber for boats wood improve the bearing capacity in shaft bottom, and by being equipped with water storage tank at active well bottom, water storage tank for pair Soil disintegrating slag that concrete duct is supported and is oriented to and rinses for receiving giant plays temporarily storing Effect.Rear parados in active well and received well is respectively supported the first jack and the second jack, to make drilling rod Or concrete duct overcomes the frictional force of soil to carry out jacking campaign.Drilling rod by several section drilling rod monomer compositions is first passed through from connecing It receives well and to active well jacking and penetrates through received well and active well, one side drilling rod front end is equipped with sharp drill bit, and drilling rod It spins under the action of driving motor drill bit jacking device jacking, so perforation received well compares concrete duct with active well It is more easy.And connection is detachably fixed between drilling rod monomer, drilling rod is directly fixedly connected with drill bit jacking device, to work as Drilling rod penetrates through when drift sand geology, solution cavity geology, and drilling rod is not easy entirely to collapse or lose, and compares down the machine to work independently Head is easily lost and damages.After drilling rod is completely through received well and active well, the drill bit of drilling rod front end is dismantled and is replaced with Concrete duct is socketed on drilling rod by reamer, and the diameter of reamer is slightly less than the internal diameter of concrete duct, is set by push pipe jacking Standby to carry out jacking, the soil in concrete duct is cut in the reamer work of drilling rod front end installation at this time, head section concrete Soil in pipeline is cut to reamer rear under the action of reamer, and washes away to form mud along pipe of concrete by giant It flows and finally flows in water storage tank in road.Wherein during concrete duct jacking, drilling rod spiral is retreated, and drilling rod is mobile Rate is identical with the advancing rate of concrete duct, is socketed concrete duct with drilling rod front end always, thus to pipe of concrete The case where road is positioned, and is reduced concrete duct offset and is collapsed suddenly, makes concrete duct be easier to pass through along projected route It passes in received well.Excavation and transport to the earthwork in concrete duct are wherein improved by reamer and giant cooperation Efficiency shortens the construction period to improve the construction efficiency of jacking construction entirety, the complex, soil suitable for short distance and geology The poor condition of construction of support force.And reamer follows drilling rod to rotate coaxially, and reduces the use of actuator, thereby reduces work The cost of journey.

The present invention is further arranged, and the water storage tank upper opening setting, the push pipe guide rail is fixed on above water storage tank Opening two sides are simultaneously bonded with the concrete duct outer peripheral surface.

By above-mentioned setting, water storage tank upper opening is arranged consequently facilitating passing through high pressure water to what is flowed out in concrete duct Rifle washes away the mud to be formed and is collected, and push pipe guide rail is the arc surface for being fixed on water storage tank upper opening two sides, circular arc Face is bonded with concrete duct outer peripheral surface, to be supported and be oriented to concrete duct.

The present invention is further arranged, the water storage tank is communicated with outlet pipe, the outlet pipe other end be placed on the ground Mortar pump connection.

By above-mentioned setting, it is communicated with outlet pipe in water storage tank, thus by the mud in water storage tank under the action of mortar pump Slurry is pumped on ground, realizes the mud dynamic equilibrium in water storage tank, is reduced the mud in water storage tank and is overflowed pollution working environment The case where.

The present invention is further arranged, and the first section concrete duct inner peripheral surface is fixedly connected with 120 ° circumferentially spaced apart Support leg, the spray head of the giant and the support leg are fixed and are arranged towards the reamer.

By above-mentioned setting, the support leg to giant support, support are fixedly connected in first section concrete duct Foot, which is intervally installed, saves concrete duct medial surface in head, so that there are the spaces flowed for mud.In the coagulation of jacking type Before native pipeline, first the water supplying pipe of giant is dismantled and a segment length of plugging into, new water supplying pipe is made to pass through new pipe of concrete Inside road.

The present invention is further arranged, if the reamer is through with dry cutting mouth, angularly circumference is set between the cutting mouth It sets, the side of cutting mouth towards the received well is fixed with the bite of arc.

By above-mentioned setting, if being through with dry cutting mouth on the cutterhead of reamer, angularly circumference setting between mouth is cut, and And the side of each notch towards received well is respectively and fixedly provided with the bite of arc, to make reamer to the earthwork in concrete duct It cuts more uniform and continues.

The present invention is further arranged, and the drilling rod monomer outer peripheral surface offers external screw thread, the outer spiral shell of adjacent drilling rod monomer Line is interconnected.

By above-mentioned setting, the external screw thread to communicate with each other is offered in the outer peripheral surface of drilling rod monomer, thus in drilling rod periphery Face formed external screw thread, and then make drilling rod during probing be easier tunnel, and in drilling rod drilling process soil along drilling rod The thread groove of outer peripheral surface moves out, and realizes probing, accelerates efficiency.

The present invention is further arranged, and one end protrusion of the drilling rod monomer is fixed with cross connector, and the other end is opened Equipped with the connector cooperated with the connector shape, the adjacent drilling rod monomer is mating by connector and connector, Fixing piece is fixed between the adjacent drilling rod monomer.

By above-mentioned setting, drills one end protrusion far from drill bit jacking device and be fixed with cross connector, it is another End offers the connector with the cooperation of connector shape, between adjacent drill pipes monomer by connector and connector it is mating after It is fixed by fixing piece, is detachably connected to make to realize between drilling rod monomer again, and then realize that the length of drilling rod is adjustable Section.

The present invention is further arranged, and the driving end of the driving motor is provided with the clamping mating with the connector Part is fixed with fixing piece between the shackle member and the adjacent drilling rod monomer.

By above-mentioned setting, the driving end of driving motor is provided with the shackle member mating with connector, shackle member Shape it is similar to connector, and shackle member and adjacent drilling rod monomer are fixed by fixing piece, by drilling rod monomer top New drilling rod monomer is connected between drill bit jacking device and drilling rod monomer after, to continue jacking drilling rod.

The present invention is further arranged, and the drill bit, reamer offer and connector shape towards one end of drilling rod monomer The card interface of cooperation.

By above-mentioned setting, by the setting of card interface, convenient for drill bit, reamer and any drilling rod monomer are connected It connects, to improve the adaptability of drilling rod integrated connection, is easily installed and can be by prefabricated reduction production cost.

In conclusion the invention has the following advantages:

1. being penetrated through by setting drilling rod from received well to active well direction, then concrete duct and drilling rod are socketed again, and leads to Reamer and giant cooperation are crossed by the setting of the earthwork cleaning in concrete duct, so that between concrete duct and drilling rod The earthwork is relatively isolated, consequently facilitating reamer and giant are cleared up, and drilling rod is in the process of concrete duct jacking It is middle to keep identical rate travel, to make concrete duct be socketed always with drilling rod, and then by drilling rod to concrete duct Guiding role is carried out, and drilling rod can also be supported concrete duct in holding givey soil environment；

2. it is clamped by several mandril monomers by connector and connector by setting mandril and is fixed by fixing piece, It will not be separated during to make to transmit torque and advance and retreat between mandril monomer；

3. by bull stick front end penetrate through active well after by bit change-over be reamer, reamer close to active well side be arranged Have and be fixed on first section concrete duct and towards the giant in reamer direction, thus by giant by the soil under cutting Scour out mud, and then flow to mud in water storage tank along concrete duct, it realizes to the earthwork in first section concrete duct Removing, and reamer follows bar rotation, reduces the use of actuator, reduces engineering cost.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the present embodiment；

Construction cross-section diagram when Fig. 2 is the drilling rod work of the present embodiment；

Fig. 3 is the schematic structural cross-sectional view of first section concrete duct in the present embodiment；

Fig. 4 is the enlarged drawing in Fig. 3 at A；

Fig. 5 is the structural schematic diagram of drilling rod monomer, drill bit and driving motor in the present embodiment；

Fig. 6 is the structural schematic diagram of reamer in the present embodiment.

Appended drawing reference: 1, active well；11, push pipe jacking device；12, water storage tank；121, outlet pipe；122, mortar pump；13, Push pipe guide rail；14, the first jack；2, received well；21, drill bit jacking device；22, the second jack；23, driving motor； 231, shackle member；3, crane；4, drilling rod monomer；41, drill bit；42, connector；43, connector；44, card interface；5, concrete Pipeline；51, reamer；511, mouth is cut；512, bite；52, giant；53, support leg.

Specific embodiment

Below in conjunction with attached drawing, invention is further described in detail.

As shown in Figure 1 to Figure 3, a kind of municipal blow-off line non-excavating construction method disclosed by the invention, including walk as follows It is rapid:

A. active well 1 and received well 2 are excavated: downward in selected construction location according to design pipe centerline and end positions Excacation well 1 and received well 2；The clear depth of active well 1 and received well 2 is three meter Zhi Jiu meters, active well 1,2 surrounding of received well Side wall casting reinforced concrete, active well 1,2 shaft bottom of received well are laid with concrete sealing bottom and casting reinforced concrete bottom plate (in figure It is not shown), to improve the bearing capacity of active well 1,2 shaft bottom of received well.

B. crane 3 is installed: moveable crane 3 is set up above active well 1 and received well 2；Active well 1 receives Movable type working platform is set on well 2, crane boom is set on movable type working platform, and crane boom loads heavy-duty machine 3, to realize crane 3 movement, and then conveniently the equipment in active well 1, received well 2 is lifted.

C. push pipe jacking device 11 is installed in active well 1: being laid with rubble (not shown), rubble in 1 bottom of active well Interior embedded a tree, used in making timber for boats wood (not shown) installs water storage tank 12 on a tree, used in making timber for boats wood, push pipe guide rail 13, and edge is horizontally mounted on water storage tank 12 Push pipe jacking device 11 is installed in 13 direction of push pipe guide rail, and push pipe jacking device 11 is provided with the first jack 14, the active well 1 Setting is used to support the rear parados of the first jack 14 on side wall；1 side wall of active well is improved to the first jack by rear parados 14 enabling capabilities.

D. drilling rod jacking device is installed in received well 2: being laid with rubble in 2 bottom of received well, a tree, used in making timber for boats wood, a tree, used in making timber for boats are buried in rubble 41 jacking device 21 of drill bit is installed, 41 jacking device 21 of drill bit is provided with the second jack 22, on 2 side wall of received well on wood The rear parados for being used to support the second jack 22 is set, and the second jack 22 is towards 1 direction jacking of active well, the second jack 22 Extension end is fixed with driving motor 23；1 side wall of active well is improved to the enabling capabilities of the second jack 22 by rear parados.

E. first section drilling rod jacking: the driving end of drilling rod monomer 4 and driving motor 23 that first section is equipped with drill bit 41 is consolidated It is fixed, and by 41 jacking device of drill bit, 21 jacking, one is excavated on 2 side wall of received well for being located at first section 4 front end of drilling rod monomer Head is saved 4 jacking of drilling rod monomer by 41 jacking device 21 of drill bit and the cooperation of driving motor 23 by deep 30~50 centimetres of location hole Tunnel, so repeatedly jacking, until head is saved complete 2 side wall of jacking received well of drilling rod monomer 4；Wherein first section drilling rod monomer 4 pushes up Driving motor 23 and first section drilling rod monomer 4 are released and connected after into 2 side wall of received well.

F. drilling rod runs through active well 1: after head section 4 jacking of drilling rod monomer again driving motor 23 and first section drilling rod monomer 4 it Between place next section drilling rod monomer 4, new 4 both ends of drilling rod monomer are fixed with driving motor 23 and first section drilling rod monomer 4 respectively Connection, and 41 jacking device 21 of drill bit and the cooperation jacking drilling rod monomer 4 of driving motor 23 are repeated, until first section drilling rod monomer 4 passes through Wear 1 side wall of active well；Wherein first section drilling rod monomer 4 moves the second jack 22 and driving motor 23 backward, passes through crane 3 By the second section drilling rod monomer 4 lifting to head section drilling rod monomer 4 and driving motor 23 between, by the second section drilling rod monomer 4 respectively with Head section drilling rod monomer 4 and driving motor 23 connect, and continue jacking process.

G. first section 5 jacking of concrete duct: head section concrete duct 5 is placed on push pipe guide rail 13, and passes through push pipe 11 jacking of jacking device, excavated on 1 side wall of active well for being located at first section 5 front end of concrete duct 30~50 centimetres of a depth, Section configuration tunnel identical with head section concrete duct 5, tunnel are arranged concentrically with drilling rod, will be first by push pipe jacking device 11 Save 5 jacking tunnel of concrete duct；

H. earth excavation in concrete duct 5: the drill bit 41 of drilling rod front end is removed and replaced to reamer 51, push pipe jacking is set Head section concrete duct 5 is continued jacking by standby 11, and giant 52 is sprayed water towards reamer 51 in first section pipe of concrete, at this time Drilling rod is mobile to the direction far from active well 1 under the cooperation of drilling rod jacking device and driving motor 23, concrete duct 5 and brill The rate travel of bar is identical；

I. concrete duct 5 runs through received well 2: placing next section on push pipe guide rail 13 again after head section 5 jacking of concrete duct Concrete duct 5, and repeat jacking tube road and exit drilling rod, reamer 51 and giant 52 continue working, by all concrete 5 jacking of pipeline is until first section concrete duct 5 runs through received well 2；Wherein after first section 5 jacking of concrete duct a part, by the One jack 14 is shunk, and is lifted the second section concrete duct 5 to push pipe guide rail 13 by crane 3, and save coagulation with head Native pipeline 5 connects, to continue jacking process by the first jack 14 until first section concrete duct 5 runs through received well 2.Its In before the new concrete duct 5 of jacking, first the water supplying pipe of giant 52 is dismantled and a segment length of plugging into, makes new water supply Pipe is inside new concrete duct 5.

J. concrete duct 5 connects: all concrete ducts 5 being connected and held out against by concrete bell-and-spigot pipe structure, are mixed Ring-like rubber ring is set between the socket and bellmouth of solidifying soil bell-and-spigot pipe structure, holds out against rear any two neighboring concrete duct 5 It is 10~15mm that the hole between the gap and two pipes of 10~20mm is stayed on the inside of nozzle；Concrete duct 5 passes through concrete after holding out against The reserved mud jacking hole of pipeline 5 carries out pipeline slip casting.

As shown in Figure 2 to Figure 3,12 upper opening of water storage tank is arranged, and wherein push pipe guide rail 13 is fixed on the upper of water storage tank 12 Side opening two sides, push pipe guide rail 13 is that the cross section being bonded with 5 outer peripheral surface of concrete duct is arc-shaped slideway, to pass through The effect that push pipe guide rail 13 is oriented to and is limited to concrete duct 5.Wherein water storage tank 12 is communicated with outlet pipe 121, water outlet 121 other end of pipe is communicated with the mortar pump 122 being placed on the ground, and will be washed away out by giant 52 by mortar pump 122 Collection on the mud pumping to ground in water storage tank 12, reduce overflow water storage tank 12 active well 1 is polluted.

The inner peripheral surface of head section concrete duct 5 is fixed with three groups of 120 ° of support legs 53 circumferentially spaced apart, support leg 53 It is fixed with the inner peripheral surface of concrete duct 5.The spray head and support leg 53 of giant 52 are fixed and are arranged towards reamer 51.

Wherein reamer 51 is disc, and reamer 51 is arranged concentrically with drilling rod, if reamer 51 is through with dry cutting mouth 511, if Angularly circumference is arranged between dry cutting mouth 511, writes the bite that notch is fixed with arc towards the side protrusion in drilling rod direction 512, reamer 51 is towards the edge of a knife direction of bite 512.

As shown in Figure 5 and Figure 6, if drilling rod is made of dry pipe monomer 4, the outer peripheral surface of drilling rod monomer 4 offers external screw thread, And it is interconnected between the external screw thread of adjacent drilling rod monomer 4.4 one end of drilling rod monomer protrusion is fixed with cross connector 42, the other end offers the connector 43 with the cooperation of 42 shape of connector.Adjacent bull stick monomer passes through connection in the axial direction Fixing piece is connected between part 42 and the mating and adjacent drilling rod monomer 4 of connector 43, fixing piece is perforation drilling rod list The sunk screw of the connector 42 of body 4 and adjacent drill pipes monomer 4.To make adjacent drilling rod by connector 42 and connector 43 Torque can be transmitted between monomer 4, and is not readily separated drilling rod monomer 4 when moving in the axial direction.

Wherein the driving end of driving motor 23 is fixed with the cross shackle member 231 mating with connector 43, and And drilling rod monomer 4 and the driving end of driving motor 23 are attached by connector 43 and 231 inserting mode of shackle member, and are passed through Fixing piece is fixed, and fixing piece is the sunk screw for penetrating through drilling rod monomer 4 and shackle member 231.

The one end far from sharp end of drill bit 41, reamer 51 are offered towards the side of mandril and 42 shape of connector cooperates Card interface 44, drill bit 41 passes through card interface 44 and 42 grafting of connector and is screwed by sunk screw, passed through in drill bit 41 Wear after active well 1 will drill bit 41 dismantle after reamer 51 is installed after move backward again, and the edge of a knife of reamer 51 is reversed towards drilling rod Rotation direction when mobile.

This specific embodiment is only explanation of the invention, is not limitation of the present invention, those skilled in the art Member can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as at this All by the protection of Patent Law in the scope of the claims of invention.