CN203050719U - Tunnel arch springing circumferential high-pressure ejecting and reinforcing construction device - Google Patents
Tunnel arch springing circumferential high-pressure ejecting and reinforcing construction device Download PDFInfo
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- CN203050719U CN203050719U CN 201320065312 CN201320065312U CN203050719U CN 203050719 U CN203050719 U CN 203050719U CN 201320065312 CN201320065312 CN 201320065312 CN 201320065312 U CN201320065312 U CN 201320065312U CN 203050719 U CN203050719 U CN 203050719U
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Abstract
The utility model relates to a tunnel arch springing circumferential high-pressure ejecting and reinforcing construction device which comprises a machine frame guide rail, a machine frame, an arc-shaped sliding way, a movable sliding frame, a fixed sliding frame, a hydraulic oil cylinder, an arc-shaped drilling rod, a rotary ejecting high-pressure pump station and a hydraulic pump station, wherein the arc-shaped sliding way is placed on a frame on the top face of the machine frame, the fixed sliding frame is fixed with the arc-shaped sliding way, the movable sliding frame is movably connected with the arc-shaped sliding way, the fixed sliding frame is connected with the movable sliding frame through the hydraulic oil cylinder, the arc-shaped drilling rod is connected with the arc-shaped sliding way through an open-and-close-type guiding and limiting ring and is fixed with the movable sliding frame through a clamping holder, a high-pressure water pipe and a high-pressure cement paste pipe are inserted in the arc-shaped drilling rod, the head of the high-pressure water pipe is communicated with a front nozzle, and the head of the high-pressure cement paste pipe is communicated with a side nozzle. The feeding and retracing of the arc-shaped drilling rod are controlled through the hydraulic oil cylinder, when the arc-shaped drilling rod is fed through the hydraulic oil cylinder, the high-pressure water is sprayed, and when the arc-shaped drilling rod is retraced through the hydraulic oil cylinder, the high-pressure cement paste is sprayed through the high-pressure cement paste pipe. A sealed reinforcing ring is placed on the bottom of a tunnel, so that the reinforcing problem of tunnel arch springing and inverted arch positions under weak surrounding rocks is effectively solved.
Description
Technical field
The utility model relates in a kind of constructing tunnel the equipment in the leading strengthening construction, particularly the equipment in a kind of leading strengthening construction of guaranteeing arch springing position safety.
Background technology
Support System in Soft Rock Tunnels construction at present is a difficult problem still, and particularly in this stratum of similar saturated powder packsand, because its hypotonicity and weak cementing properties adopt common grouting method difficulty to produce effect, the sand unstability is gushed because being subjected to disturbance water burst to occur in the stratum during excavation.Be to adopt horizontal jet grouting technology to a kind of effectively leading reinforcement means in this kind stratum, namely before tunnel excavation at outer construction one ring of excavation outline line or encircle the horizontal jet grouting stake more and form arching and also play water proof antiseepage effect.But this leading reinforcement means is owing to restriction and the common horizontal jet grouting of cost reason of plant equipment can only be constructed in the position, arch, and the horizontal jet grouting stake of arch springing is the weak spot of this kind reinforcement means with the joint portion of country rock like this.If can not well solve the superpower reinforcing problem at arch springing position, will influence construction speed greatly.Common way is to have increased a lot of stakes at the arch springing position with reply arch springing shakiness, but because horizontal jet grouting does not form sealing, get out of a predicament or an embarrassing situation or the inverted arch position has water outlet mud extraction or stratum to slip to collapse, cause topping bar and middle bench excavation after get out of a predicament or an embarrassing situation and inverted arch position practice of construction difficult unusually.
For can be in Support System in Soft Rock Tunnels better application horizontal jet grouting technology, remove the protection dead angle of horizontal jet grouting technology, for the Support System in Soft Rock Tunnels construction provides better safety guarantee, must seek a kind of method and construction equipment, can strengthen the horizontal jet grouting stake with the stability of country rock in the arch springing joint portion, can form a closed curtain again, play the effect of the solid sand of retaining soil that blocks water.
The utility model content
The purpose of this utility model provides a kind of tunnel arch springing hoop high-pressure injection strengthening construction equipment, solve when hoop horizontal jet grouting stake advance support is adopted in the Support System in Soft Rock Tunnels construction, can strengthen the horizontal jet grouting stake with the stability of country rock in the arch springing joint portion, can form a closed curtain again, play the technical problem of the solid sand effect of retaining soil that blocks water.
For achieving the above object, the utility model adopts following technical scheme:
A kind of tunnel arch springing hoop high-pressure injection strengthening construction equipment, comprise rack rail, frame, cambered way, mobile balladeur train, fixing balladeur train, hydraulic jack, the arc drilling rod, high pressure pumping plant and hydraulic power unit, described rack rail is parallel to the tunnel axis direction and is arranged near on the construction step surface of arch springing by the installation dimension requirement, described frame is erected on the rack rail, described frame end face has set up cambered way, described cambered way end face is connected with opening-closing type guide and limit circle, the spaced apart locating hole that is provided with on its facade, described mobile balladeur train and fixedly balladeur train be inserted in cambered way, wherein, the top of described mobile balladeur train is connected with clamper, described fixedly balladeur train inserts locating hole by bearing pin and cambered way is fixed, described mobile balladeur train and cambered way flexibly connect, fixedly connect by hydraulic jack between balladeur train and the mobile balladeur train, described hydraulic jack is circumscribed with hydraulic power unit;
The axis parallel of described arc drilling rod and cambered way, its clamping and mobile balladeur train by clamper is fixed, and by opening-closing type guide and limit circle it is carried out guide and limit; Be inserted with a high-pressure water pipe and two water under high pressure mud pipes in the described arc drilling rod, front nozzle on the shower nozzle of the head of described high-pressure water pipe and arc drilling rod front end is communicated with, the head of described water under high pressure mud pipe is communicated with side nozzle on the shower nozzle of arc drilling rod front end, and the afterbody of described high-pressure water pipe and two water under high pressure mud pipes all is connected with the high pressure pumping plant.
Described cambered way is made by the design size stretch bending by H shaped steel.
Described side nozzle respectively arranges two every 180 ° on shower nozzle, injection direction is parallel to the tunnel axis direction during construction.
In the sidewall notches of described shower nozzle the wireless position sensor is arranged fixedly, described wireless position sensor sends to position indicator by wireless launcher with position signalling.
Compared with prior art the utlity model has following characteristics and beneficial effect: at first, adopt the utility model to carry out tunnel arch springing hoop and spray reinforcing, utilize topping bar of excavating out or operation platform that middle step forms, avoided adopting in traditional construction the reinforcement means of horizontal jet grouting stake in the difficult point of getting out of a predicament or an embarrassing situation and implement the inverted arch position, adopt this reinforcement means simultaneously, can form left overlap at tunnel bottom, the closed reinforcement circle that middle overlap and right overlap are formed, also can having constructed with the arch, tunnel simultaneously, the horizontal jet grouting curtain finished is common to form cylindric closed prop, effectively solved particularly saturated powder packsand situation of weak surrounding rock, the reinforcing problem at following tunnel arch springing and inverted arch position.
Secondly, adopt the utility model to carry out tunnel arch springing hoop and spray reinforcing
,Compare with the horizontal jet grouting method of tunnel bottom and to realize that the good water proof of tunnel bottom fixes the sand in the curtain effect and since the thickness of reinforcing curtain than churning reinforce little, can effectively reduce the reinforcing expense and shorten the construction period, improve efficiency of construction.
Moreover, the utility model proposes a whole set of construction equipment, by adopting the arc drilling rod and itself and mobile balladeur train being fixed, realize that the arc drilling rod is sent to flexibly with returning and remove, simultaneously at the arc drill rod end the different front nozzle of function and side nozzle are set, in work progress, need not to change drilling rod, improve efficiency of construction.
In addition, the front end drill bit position setting angle sensor of arc drilling rod can further guarantee construction precision, makes tunnel arch springing hoop spray reinforcement means and reliably overlaps along the tunnel direction, guarantees the complete of bottom closure circle.
The utility model can be widely used in advance support in the construction of Support System in Soft Rock Tunnels benching tunnelling method.
Description of drawings
The utility model is described in more detail below in conjunction with accompanying drawing.
Fig. 1 is the construction equipment detail drawing.
Fig. 2 is the construction equipment fundamental diagram.
Fig. 3 is consolidation effect figure.
Fig. 4 is the shower nozzle detail drawing.
Fig. 5 is the right view of Fig. 4.
Reference numeral: 1-right side overlap, 2-left side overlap, the 3-cambered way, the 4-frame, the 5-rack rail, 6-is balladeur train fixedly, 7-moves balladeur train, the 8-hydraulic jack, the 9-clamper, 10-arc drilling rod, the 11-high-pressure water pipe, the 12-side nozzle, the 13-front nozzle, 14-goes into the hole, ground, 15-opening-closing type guide and limit circle, the 16-step surface of constructing, the 17-bearing pin, the 18-locating hole, overlap in the middle of the 19-, the 20-shower nozzle, 21-water under high pressure mud pipe, 22-left side hoop reinforcing soleplate, 23-right side hoop reinforcing soleplate, 24-horizontal jet grouting advance support, the 25-preliminary bracing, the 26-secondary lining, 27-wireless position sensor, 28-side nozzle slurry-feeding hole, 29-front nozzle inlet opening.
The specific embodiment
Embodiment one, referring to Fig. 1, a kind of tunnel arch springing hoop high-pressure injection strengthening construction equipment, comprise rack rail 5, frame 4, cambered way 3, mobile balladeur train 7, fixedly balladeur train 6, hydraulic jack 8, arc drilling rod 10, high pressure pumping plant and hydraulic power unit, described rack rail 5 is parallel to the tunnel axis direction and is arranged near on the construction step surface 16 of arch springing by the installation dimension requirement, described frame 4 is erected on the rack rail 5, described frame 4 end faces have set up cambered way 3, described cambered way 3 end faces are connected with opening-closing type guide and limit circle 15, the spaced apart locating hole 18 that is provided with on its facade, described mobile balladeur train 7 and fixedly balladeur train 6 be inserted in cambered way 3, wherein, the top of described mobile balladeur train 7 is connected with clamper 9, it is fixing with cambered way 3 that described fixedly balladeur train 6 inserts locating hole 18 by bearing pin 17, described mobile balladeur train 7 flexibly connects with cambered way 3, fixedly connects by hydraulic jack 8 between balladeur train 6 and the mobile balladeur train 7, and described hydraulic jack 8 is circumscribed with hydraulic power unit;
The axis parallel of described arc drilling rod 10 and cambered way 3, its clamping by clamper 9 is fixed with mobile balladeur train 7, and by opening-closing type guide and limit circle 15 it is carried out guide and limit; Be inserted with a high-pressure water pipe 11 and two water under high pressure mud pipes 21 in the described arc drilling rod 10, front nozzle 13 on the shower nozzle 20 of the head of described high-pressure water pipe 11 and arc drilling rod 10 front ends is communicated with, side nozzle 12 on the shower nozzle 20 of the head of described water under high pressure mud pipe 21 and arc drilling rod 10 front ends is communicated with, and the afterbody of described high-pressure water pipe 11 and two water under high pressure mud pipes 21 all is connected with the high pressure pumping plant.
Described cambered way 3 is made by the design size stretch bending by H shaped steel.
Described side nozzle 12 respectively arranges two every 180 ° on shower nozzle 20, injection direction is parallel to the tunnel axis direction during construction.
The operating principle of construction equipment is: the arch slideway can move along the tunnel axis direction along rack rail.Fixedly balladeur train 6 and mobile balladeur train 7 are installed on the cambered way 3, are connected by hydraulic jack 8 between the two, and by stretching of hydraulic jack 8, mobile balladeur train 7 can move back and forth along cambered way 3.Clamper 9 is fixed on the top of mobile balladeur train 7, can realize the clamping to arc drilling rod 10.Arc drilling rod 10 is processed into fixed length, connects chi according to reinforcing length needs and sends to.There are three high-voltage tubes 11 arc drilling rod 10 inside, link to each other with the front nozzle 13 of shower nozzle and the side nozzle 12 of both sides respectively, can realize arc drilling rod 10 the place ahead soil body jet cutting and side direction rotary jet strengthenings.Open clamper 9 and opening-closing type guide and limit circle 15, concentric with the arch slideway behind arc drilling rod 10 clampings.Clamping, stretching of balladeur train oil cylinder at the carriage assembly clamper reach under the phorogenesis of mobile balladeur train, can realize sending to and returning and remove of crooked drill pipe.
Adopt above-mentioned construction equipment to carry out tunnel arch springing hoop high-pressure injection reinforcement means, referring to Fig. 2 and shown in Figure 3, wherein, the dotted line among Fig. 2 is represented, the running orbit of arc drilling rod in the construction equipment.Step is as follows:
Step 1 serves as construction step surface 16 with topping bar of having excavated or middle step, at construction step surface 16 bilateral symmetry tunnel axis, goes into ground hole 14 by what two row's arc drilling rods 10 were left in designing requirement with Tapper;
Step 2, rack rail 5 is fixed on the left side of construction step surface 16 by installation dimension, the frame 4 of balladeur train 6 and mobile balladeur train 7 is fixed on the rack rail 5 with being installed with fixedly, finish being connected of first arc drilling rod 10, shower nozzle 20 and high-pressure water pipe 11, water under high pressure mud pipe 21 simultaneously, open the clamper 9 on mobile balladeur train 7 tops and the opening-closing type guide and limit circle 15 on the cambered way 3 then, first arc drilling rod 10 gripped;
Step 4, hydraulic jack 8 are unclamped clamper 9 after reaching the stroke end of a period, and hydraulic jack 8 shrinks, and drive mobile balladeur train 7 and clamper and remove original position 9 times, and first arc drilling rod of order clamping 10 realized sending to;
Step 8 is constructed the fixing back of construction equipment repeating step three to step 7 until finishing all stations of tunnel axis left side;
Described step 2, when the mounting and construction equipment of tunnel axis left side, at tunnel axis right side while mounting and construction equipment, after first station construction for the treatment of tunnel axis left side is finished, beginning realizes according to step 3 to step 7 that arc drilling rod 10 is sent to and returned at first station on tunnel axis right side and removes high-pressure injection, finish the construction of right side hoop reinforcing soleplate 23, form a curtain that is formed by left side hoop reinforcing soleplate 22 and right side hoop reinforcing soleplate 23 at tunnel bottom, constantly alternately construction then, form series of parallel at last by left side hoop reinforcing soleplate 22, the closed reinforcement circle that right side hoop reinforcing soleplate 23 and horizontal jet grouting advance support 24 are formed, described left side hoop reinforcing soleplate 22 and the middle overlap 19 of the formation respectively of right side hoop reinforcing soleplate 23 mutual overlap joints; Described left side hoop reinforcing soleplate 22 and horizontal jet grouting advance support 24 be the left side of the formation respectively overlap 2 of overlap joint mutually; Described right side hoop reinforcing soleplate 23 and horizontal jet grouting advance support 24 be the right side of the formation respectively overlap 1 of overlap joint mutually.
The end face of described left side overlap 2 and right side overlap 1 all is positioned at 16 times 1.5 meters depths of construction step surface.
In the described step 3, the pressure of described water under high pressure is 25～30MPa.
In the described step 6, the pressure of described water under high pressure mud is 35～40MPa.
Claims (4)
1. tunnel arch springing hoop high-pressure injection strengthening construction equipment, it is characterized in that: comprise rack rail (5), frame (4), cambered way (3), mobile balladeur train (7), fixing balladeur train (6), hydraulic jack (8), arc drilling rod (10), high pressure pumping plant and hydraulic power unit, described rack rail (5) is parallel to the tunnel axis direction and is arranged near on the construction step surface (16) of arch springing by the installation dimension requirement, described frame (4) is erected on the rack rail (5), described frame (4) end face has set up cambered way (3), described cambered way (3) end face is connected with opening-closing type guide and limit circle (15), the spaced apart locating hole (18) that is provided with on its facade, described mobile balladeur train (7) and fixedly balladeur train (6) be inserted in cambered way (3), wherein, the top of described mobile balladeur train (7) is connected with clamper (9), it is fixing with cambered way (3) that described fixedly balladeur train (6) inserts locating hole (18) by bearing pin (17), described mobile balladeur train (7) flexibly connects with cambered way (3), fixedly connect by hydraulic jack (8) between balladeur train (6) and the mobile balladeur train (7), described hydraulic jack (8) is circumscribed with hydraulic power unit;
The axis parallel of described arc drilling rod (10) and cambered way (3), its clamping and mobile balladeur train (7) by clamper (9) is fixing, and by opening-closing type guide and limit circle (15) it is carried out guide and limit; Be inserted with a high-pressure water pipe (11) and two water under high pressure mud pipes (21) in the described arc drilling rod (10), front nozzle (13) on the shower nozzle (20) of the head of described high-pressure water pipe (11) and arc drilling rod (10) front end is communicated with, side nozzle (12) on the shower nozzle (20) of the head of described water under high pressure mud pipe (21) and arc drilling rod (10) front end is communicated with, and the afterbody of described high-pressure water pipe (11) and two water under high pressure mud pipes (21) all is connected with the high pressure pumping plant.
2. tunnel arch springing hoop high-pressure injection strengthening construction equipment according to claim 1, it is characterized in that: described cambered way (3) is made by the design size stretch bending by H shaped steel.
3. tunnel arch springing hoop high-pressure injection strengthening construction equipment according to claim 1 is characterized in that: described side nozzle (12) is gone up every 180 ° at shower nozzle (20) and is respectively arranged two, and injection direction is parallel to the tunnel axis direction during construction.
4. tunnel arch springing hoop high-pressure injection strengthening construction equipment according to claim 1, it is characterized in that: in the sidewall notches of described shower nozzle (20) wireless position sensor (27) is arranged fixedly, described wireless position sensor (27) sends to position indicator by wireless launcher with position signalling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320065312 CN203050719U (en) | 2013-02-05 | 2013-02-05 | Tunnel arch springing circumferential high-pressure ejecting and reinforcing construction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320065312 CN203050719U (en) | 2013-02-05 | 2013-02-05 | Tunnel arch springing circumferential high-pressure ejecting and reinforcing construction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203050719U true CN203050719U (en) | 2013-07-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320065312 Withdrawn - After Issue CN203050719U (en) | 2013-02-05 | 2013-02-05 | Tunnel arch springing circumferential high-pressure ejecting and reinforcing construction device |
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| CN (1) | CN203050719U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103061778A (en) * | 2013-02-05 | 2013-04-24 | 北京首尔工程技术有限公司 | Tunnel arch foot circumferential high pressure jet strengthening method and construction equipment |
| CN107120120A (en) * | 2017-06-21 | 2017-09-01 | 同济大学 | Vehicle frame walking shield tunnel grouting behind shaft or drift lining testing equipment |
| CN107559021A (en) * | 2017-09-01 | 2018-01-09 | 燕山大学 | A kind of full rotation type tunnel secondary lining concrete curing spraying chassis |
-
2013
- 2013-02-05 CN CN 201320065312 patent/CN203050719U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103061778A (en) * | 2013-02-05 | 2013-04-24 | 北京首尔工程技术有限公司 | Tunnel arch foot circumferential high pressure jet strengthening method and construction equipment |
| CN107120120A (en) * | 2017-06-21 | 2017-09-01 | 同济大学 | Vehicle frame walking shield tunnel grouting behind shaft or drift lining testing equipment |
| CN107559021A (en) * | 2017-09-01 | 2018-01-09 | 燕山大学 | A kind of full rotation type tunnel secondary lining concrete curing spraying chassis |
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Legal Events
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130710 Effective date of abandoning: 20140827 |
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| RGAV | Abandon patent right to avoid regrant |