CN106050245A - Supporting structure for zero distance underneath pass of existing station of rectangular tunnel section and construction method - Google Patents

Supporting structure for zero distance underneath pass of existing station of rectangular tunnel section and construction method Download PDF

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Publication number
CN106050245A
CN106050245A CN201610627661.6A CN201610627661A CN106050245A CN 106050245 A CN106050245 A CN 106050245A CN 201610627661 A CN201610627661 A CN 201610627661A CN 106050245 A CN106050245 A CN 106050245A
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China
Prior art keywords
steel
tunnel
station
jack
building
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Pending
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CN201610627661.6A
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Chinese (zh)
Inventor
贾少春
王春希
王立新
高志宏
戴志仁
王俊
王天明
张海
倪飞
高升
段亚刚
翁木生
王博
王海祥
雷永生
向阳
马晓波
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China Railway First Survey and Design Institute Group Ltd
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China Railway First Survey and Design Institute Group Ltd
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Priority to CN201610627661.6A priority Critical patent/CN106050245A/en
Publication of CN106050245A publication Critical patent/CN106050245A/en
Pending legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/003Linings or provisions thereon, specially adapted for traffic tunnels, e.g. with built-in cleaning devices
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/04Lining with building materials
    • E21D11/10Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D15/00Props; Chocks, e.g. made of flexible containers filled with backfilling material
    • E21D15/50Component parts or details of props
    • E21D15/54Details of the ends of props
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D15/00Props; Chocks, e.g. made of flexible containers filled with backfilling material
    • E21D15/50Component parts or details of props
    • E21D15/54Details of the ends of props
    • E21D15/55Details of the ends of props of prop heads or feet
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/001Improving soil or rock, e.g. by freezing; Injections

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Environmental & Geological Engineering (AREA)
  • Civil Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Soil Sciences (AREA)
  • Lining And Supports For Tunnels (AREA)

Abstract

The invention relates to a supporting structure for zero distance underneath pass of an existing station of a rectangular tunnel section and a construction method. Settlement deformation of underneath pass of the existing station of a newly-built line is large. Before a tunnel is dug, deep hole grouting reinforcing bodies are constructed on the tunnel face of the tunnel, the method of ring-excavation with the core soil reserved is adopted to symmetrically dig upper guide holes and lower guide holes on the inner side and the outer side of a left line and a right line, a preliminary support is constructed in time, jacks are longitudinally arranged below the existing station, and a side wall vertical profile steel frame is erected. Through the synergistic effect of the steel frame + H steel + the hydraulic jacks + reinforcing rob plates +grouting materials and the like, a hydraulic synchronous control jack-up technique is adopted in combination with other auxiliary measures, the multiple large-tonnage jacks which are mounted on a newly-built preliminary supporting structure in advance form group jacking and supporting to provide reaction force compensation for an existing subway structure, a rigid and adjustable joint supporting system is formed, an upper existing station structure is supported, and the purpose of effectively controlling deformation of the existing station structure is achieved.

Description

Supporting construction and the construction method of building up station is worn under Rectangular Tunnel section zero distance
Technical field
The present invention relates to Tunnel Engineering technical field, be specifically related under a kind of Rectangular Tunnel section zero distance wear building up station Supporting construction and construction method.
Background technology
Along with the Large scale construction of urban rail transit in China, Urban Underground sky asks that utilization rate is being stepped up, newly-built line Road is worn the situation of existing line and is got more and more under needing.The mode of passing through have on wear, under wear and wear three kinds with side, wear down existing subway Wearing existing subway station engineering difficulty under line project, particularly bored tunnel maximum, risk is the highest.Wear at subway tunnel More in building up station work progress, the country rock soil body can be produced disturbance and cause stratum deformation, when deformation reaches to a certain degree The operation security of existing subway station will be had influence on.Meanwhile, constructing metro tunnel advance reinforcement controlling measurement the most at that time, Ke Nengyin Play sedimentation or the protuberance of existing subway station, even produce damaging influence, time serious, also will have influence on the life of related personnel Property safety, especially in business district, city, if there is such issues that, will produce very severe social influence.
Wearing the traditional method for designing of building up station under general newly-built circuit is reservation 2m between new tunnel and existing structure ~the interlayer soil of 3m, by slip casting (steel tube shed, ductule or deep hole grouting) or the method such as freeze and reinforce interlayer soil in advance, to subtract The sedimentation and deformation of building up station base plate during Pollen sterility excavation.Practice finds that the deformation that above-mentioned engineering method produces is the biggest, and upper strata Even if structure once produces and also is difficult to recover after sedimentation and deformation passes through again grouting and reinforcing, subway engineering development cannot be met Need.
Summary of the invention
It is an object of the invention to provide supporting construction and the structure wearing building up station under a kind of Rectangular Tunnel section zero distance Method, is formed top building up station structure and supports, reach effectively to control the purpose of building up station malformation.
The technical solution adopted in the present invention is:
The supporting construction of building up station is worn under Rectangular Tunnel section zero distance, it is characterised in that:
Being Rectangular Tunnel below building up station, be provided with preliminary bracing in Rectangular Tunnel, preliminary bracing includes along direction, tunnel equal The steelframe of the rectangle hoop of even distribution;
The building up station bottom cushion of building up station is close at preliminary bracing top;
Preliminary bracing arranges a Pin H steel every three Pin steelframes, and H steel is internal arranges H steel the most arranged in a crossed manner, top H steel with It is provided with jack between other H steel tops below the H steel of top.
It is provided with top steel plate between jack top and H steel, bottom jack and between H steel, is provided with end steel plate, very heavy Top/bottom part is outer is provided with the vertical foot steel plate being fixed on the end steel plate collarette week.
H steel is provided with floor of putting more energy into, and is positioned at the position of corresponding jack.
The construction method of the supporting construction of building up station is worn under Rectangular Tunnel section zero distance, it is characterised in that:
Comprise the following steps:
Step one: stratum pre-reinforcement:
Before tunnel excavation, at tunnel tunnel face, perform deep hole grouting reinforcing body, form effective water-stop curtain, eliminate diving and The artesian aquifer adverse effect to tunneling operation;Slip casting from bottom to top, is longitudinally carried out at twice, overlaps 2-3 m;After reinforcing, open Digging face soil body unconfined compressive strength and reach 0.5MPa, periphery soil stabilization district reaches 1.0Mpa;
Step 2: the upper and lower pilot drive in outside:
Use the upper and lower pilot tunnel in outside in the line of Ring Cutting provided core soil method symmetry excavation left and right, perform preliminary bracing in time, open Being drawn by the soil body under preliminary bracing bottom surface when digging and remove, preliminary bracing end face is closely connected with building up station bottom cushion;Preliminary bracing bag Including the steelframe along direction, tunnel equally distributed rectangle hoop, arrange a Pin H steel every three Pin steelframes, H steel is internal to be arranged anyhow H steel arranged in a crossed manner, installs jack between other H steel tops below top H steel and top H steel, jack is in place After, in time to jack pre-add top power 30t, by 5t hierarchical loading;After pilot tunnel is through, interim end-blocking, sets along sidewall in pilot tunnel The grouting and reinforcing district soil body is carried out supplementing slip casting by conduit;
Step 3: pour outside side wall and part is pushed up, base plate:
Retreating from interior and pour side wall and part top, base arrangement outward, hoop divides 2 constructions, longitudinally every section of 4-6m, temporarily Inverted arch dismounting pours corresponding with side wall, and every section of 6-8m tears one section open and pours one section, after two lining concrete reach intensity, and form removal, And set up temporary steel support;
Step 4: the upper and lower pilot drive in inner side:
Left and right line symmetry is carried out, and with upper and lower pilot tunnel inside the line of step 2 excavation left and right and blocks temporarily;Base area iron construction sedimentation Monitoring situation, adjusts jack 4 in real time and pushes up power;
Step 5: side wall and remainder top, base plate inside pouring:
From interior outward, retreat with step 3 and pour side wall and part top, base arrangement, and set up temporary steel support;
Step 6: remove temporary support, under wear existing line segment and constructed.
The invention have the advantages that
1, the present invention follows the principle of newly built tunnels and existing structure rigid contact, and construction uses partial excavation, portion of portion cyclization to arrange Executing, support top uses active roof-propping, hierarchical loading, dynamic regulating measures.
2, the supporting structure system of the present invention is by supportings such as steelframe+H steel+hydraulic jack+floor of putting more energy into+grouting and reinforcing bodies Measure coordinate acts on jointly, forms rigidity, adjustable Composite Supporting System, forms top building up station structure and supports, can have Effect controls the deformation of building up station structure, it is ensured that its operation security.
3, Rectangular Tunnel structure roof and building up station base plate rigidity closing contact, it is to avoid clamp between new, old structure Soil layer need to be taked pipe curtain and extend out the measures such as slip casting in advance, reduces and puts into, has economy, efficient advantage.
Accompanying drawing explanation
Fig. 1 is the vertical section schematic diagram of the present invention.
Fig. 2 is the schematic cross section of the present invention.
Fig. 3 is C node drawing (jack) of the present invention.
Fig. 4 is the A-A profile of the present invention.
Fig. 5 is the B-B profile of the present invention.
In figure, 1-building up station, 2-H steel, 3-steelframe, 4-jack, 5-Core Soil, 6-grouting and reinforcing body, the 7-initial stage props up Protecting, 8-puts more energy into floor, and 9-pushes up steel plate, 10-foot steel plate, steel plate at the bottom of 11-, 12-building up station bottom cushion.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the present invention will be described in detail.
The present invention relates to wear under Rectangular Tunnel section zero distance the supporting construction of building up station, excavate at Tunneling by mining method Before, at tunnel tunnel face, perform deep hole grouting reinforcing body 6, in using Ring Cutting provided core soil method symmetry excavation left and right line The upper and lower pilot tunnel in outside, performs preliminary bracing 7 in time, longitudinally arranges 1 Pin every 3 Pin grid steel frames very heavy below building up station 1 Top 4+ profile steel frame 3, left and right line each mileage section respectively sets 3 100 t hydraulic self-locking jack 4.First set up during excavation The vertical profile steel frame of side wall 3, is welded to connect muscle;Installing top profile steel frame 3 again, jack 4 should be installed in profile steel frame 3 in advance The fixed position stayed, the installation method at its position that is connected with profile steel frame 3 is as shown in Fig. 4.By steelframe 3+H steel 2+ hydraulic pressure thousand Jin top 4+ puts more energy into floor 8+ grouting and reinforcing body 6 synergism such as grade, forms rigidity, adjustable Composite Supporting System, existing to top Station structure is formed and supports.Wherein, grouting and reinforcing body 6 is ordinary cement-waterglass dual slurry, and periphery soil stabilization district uses sulfur Aluminate cement.
Concrete structure is:
It is Rectangular Tunnel below building up station 1, in Rectangular Tunnel, is provided with preliminary bracing 7.Preliminary bracing 7 includes along direction, tunnel The steelframe 3 of equally distributed rectangle hoop;The building up station bottom cushion 12 of building up station 1 is close at preliminary bracing 7 top;Initial stage Supporting 7 arranges a Pin H steel 2 every three Pin steelframes 3, and H steel 2 is internal arranges H steel 2 the most arranged in a crossed manner, top H steel 2 and top It is provided with jack 4 between other H steel 2 tops below portion's H steel 2.Left and right line each mileage section respectively sets 3 100 t liquid Pressure self-locking jack 4.
It is provided with top steel plate 9 between jack 4 top and H steel 2, bottom jack 4 and between H steel 2, is provided with end steel plate 11, jack 4 bottom periphery ring week is provided with the vertical foot steel plate 10 being fixed on end steel plate 11.H steel 2 is provided with ribbed stiffener Plate, is positioned at the position of corresponding jack 4.
Wear the construction method of the supporting construction of building up station under above-mentioned Rectangular Tunnel section zero distance, comprise the following steps:
Step one: stratum pre-reinforcement:
Before tunnel excavation, at tunnel tunnel face, perform deep hole grouting reinforcing body 6, form effective water-stop curtain, eliminate diving And the adverse effect that artesian aquifer is to tunneling operation;Slip casting from bottom to top, is longitudinally carried out at twice, overlaps 2-3 m;After reinforcing, Excavation face soil body unconfined compressive strength reaches 0.5MPa, and periphery soil stabilization district reaches 1.0Mpa;
Step 2: the upper and lower pilot drive in outside:
Use the upper and lower pilot tunnel in outside in the line of Ring Cutting provided core soil method symmetry excavation left and right, perform preliminary bracing 7 in time, Being drawn by the soil body under preliminary bracing 7 bottom surface during excavation and remove, preliminary bracing 7 end face is closely connected with building up station bottom cushion 12;Initial stage Supporting 7 includes the steelframe 3 along direction, tunnel equally distributed rectangle hoop, arranges a Pin H steel 2 every three Pin steelframes 3, in H steel 2 Portion arranges H steel 2 the most arranged in a crossed manner, installs very heavy between other H steel 2 tops below top H steel 2 and top H steel 2 Top 4, after jack 4 is in place, in time to jack pre-add top power 30t, by 5t hierarchical loading;Interim end-blocking after pilot tunnel is through, Set conduit along sidewall in pilot tunnel to carry out the grouting and reinforcing district soil body supplementing slip casting;
Step 3: pour outside side wall and part is pushed up, base plate:
Retreating from interior and pour side wall and part top, base arrangement outward, hoop divides 2 constructions, longitudinally every section of 4-6m, temporarily Inverted arch dismounting pours corresponding with side wall, and every section of 6-8m tears one section open and pours one section, after two lining concrete reach intensity, and form removal, And set up temporary steel support (400x5 steel pipe@3m);
Step 4: the upper and lower pilot drive in inner side:
Left and right line symmetry is carried out, and with upper and lower pilot tunnel inside the line of step 2 excavation left and right and blocks temporarily;Base area iron construction sedimentation Monitoring situation, adjusts jack 4 in real time and pushes up power;
Step 5: side wall and remainder top, base plate inside pouring:
From interior outward, retreat with step 3 and pour side wall and part top, base arrangement, and set up temporary steel support (400x5 Steel pipe@3m);
Step 6: remove temporary support, under wear existing line segment and constructed.
Present disclosure is not limited to cited by embodiment, and those of ordinary skill in the art are by reading description of the invention And the conversion of any equivalence that technical solution of the present invention is taked, the claim being the present invention is contained.

Claims (4)

1. under Rectangular Tunnel section zero distance, wear the supporting construction of building up station, it is characterised in that:
Building up station (1) lower section is Rectangular Tunnel, is provided with preliminary bracing (7) in Rectangular Tunnel, and preliminary bracing (7) includes along tunnel The steelframe (3) of direction, road equally distributed rectangle hoop;
The building up station bottom cushion (12) of building up station (1) is close at preliminary bracing (7) top;
Preliminary bracing (7) arranges Pin H steel (2) every three Pin steelframes (3), and H steel (2) is internal arranges H the most arranged in a crossed manner Steel (2), is provided with jack (4) between other H steel (2) tops of top H steel (2) and lower section, top H steel (2).
The supporting construction of building up station is worn under Rectangular Tunnel section zero distance the most according to claim 1, it is characterised in that:
It is provided with top steel plate (9) between jack (4) top and H steel (2), is provided with between jack (4) bottom and H steel (2) End steel plate (11), is provided with the vertical foot steel plate (10) being fixed on end steel plate (11) jack (4) bottom periphery ring week.
The supporting construction of building up station is worn under Rectangular Tunnel section zero distance the most according to claim 1, it is characterised in that:
H steel (2) is provided with floor of putting more energy into, and is positioned at the position of corresponding jack (4).
4. under Rectangular Tunnel section zero distance, wear the construction method of the supporting construction of building up station, it is characterised in that:
Comprise the following steps:
Step one: stratum pre-reinforcement:
Before tunnel excavation, at tunnel tunnel face, perform deep hole grouting reinforcing body (6), form effective water-stop curtain, eliminate latent Water and the artesian aquifer adverse effect to tunneling operation;Slip casting from bottom to top, is longitudinally carried out at twice, overlaps 2-3 m;Reinforce After, excavation face soil body unconfined compressive strength reaches 0.5MPa, and periphery soil stabilization district reaches 1.0Mpa;
Step 2: the upper and lower pilot drive in outside:
Use the upper and lower pilot tunnel in outside in the line of Ring Cutting provided core soil method symmetry excavation left and right, perform preliminary bracing in time (7), during excavation, the soil body under preliminary bracing (7) bottom surface is drawn and remove, preliminary bracing (7) end face and building up station bottom cushion (12) Closely connected;Preliminary bracing (7) includes the steelframe (3) along direction, tunnel equally distributed rectangle hoop, arranges every three Pin steelframes (3) One Pin H steel (2), H steel (2) is internal arranges H steel (2) the most arranged in a crossed manner, in top H steel (2) and lower section, top H steel (2) Other H steel (2) tops between install jack (4), after jack (4) is in place, in time to jack pre-add top power 30t, press 5t hierarchical loading;After pilot tunnel is through, interim end-blocking, sets conduit along sidewall in pilot tunnel and supplements the grouting and reinforcing district soil body Slip casting;
Step 3: pour outside side wall and part is pushed up, base plate:
Retreating from interior and pour side wall and part top, base arrangement outward, hoop divides 2 constructions, longitudinally every section of 4-6m, temporarily Inverted arch dismounting pours corresponding with side wall, and every section of 6-8m tears one section open and pours one section, after two lining concrete reach intensity, and form removal, And set up temporary steel support;
Step 4: the upper and lower pilot drive in inner side:
Left and right line symmetry is carried out, and with upper and lower pilot tunnel inside the line of step 2 excavation left and right and blocks temporarily;Base area iron construction sedimentation Monitoring situation, adjusts jack 4 in real time and pushes up power;
Step 5: side wall and remainder top, base plate inside pouring:
From interior outward, retreat with step 3 and pour side wall and part top, base arrangement, and set up temporary steel support;
Step 6: remove temporary support, under wear existing line segment and constructed.
CN201610627661.6A 2016-08-03 2016-08-03 Supporting structure for zero distance underneath pass of existing station of rectangular tunnel section and construction method Pending CN106050245A (en)

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CN105909265A (en) * 2016-06-12 2016-08-31 中铁十九局集团轨道交通工程有限公司 Heaving-prevention retrusive deep-hole grouting system and method for passing through existing shield tunnel
CN106988750A (en) * 2017-05-26 2017-07-28 中铁四局集团第三建设有限公司 The embodiment at existing station is worn under a kind of large span running tunnel super close distance
CN107313744A (en) * 2017-07-18 2017-11-03 山西晋城无烟煤矿业集团有限责任公司 A kind of small guide hole grouting and reinforcing coal bed gas well passes through the construction method in goaf
CN107654234A (en) * 2017-07-24 2018-02-02 广州地铁设计研究院有限公司 A kind of construction method of subway tunnel crossing subway station diaphram wall
CN108798681A (en) * 2018-06-15 2018-11-13 中铁第勘察设计院集团有限公司 What middle hole method zero distance passed through existing subway station underpins system and its construction method
CN108952771A (en) * 2017-05-27 2018-12-07 中铁建大桥工程局集团第三工程有限公司 Existing rigid structures zero are worn under one kind deforms construction method
CN110005442A (en) * 2019-04-26 2019-07-12 中铁二十三局集团第六工程有限公司 Under wear existing building Urban Underground mining sectbn surrounding rock consolidation technique
CN110630284A (en) * 2019-09-28 2019-12-31 广州地铁设计研究院股份有限公司 Settlement active control structure and method for construction of closely-adhered underpass existing subway station
CN110777850A (en) * 2019-11-29 2020-02-11 浙江交工集团股份有限公司 Existing pipe gallery underground space, supporting structure thereof and construction method of supporting structure
CN110939154A (en) * 2019-12-11 2020-03-31 中铁第四勘察设计院集团有限公司 Node structure of crossing station on pipe gallery and construction method
CN111270615A (en) * 2020-03-11 2020-06-12 中国建筑第八工程局有限公司 Tunnel widening structure at bridge-tunnel connection part and bridge construction method
CN112943310A (en) * 2021-02-07 2021-06-11 中交一公局集团有限公司 Construction method for cross spanning section of upper-layer tunnel and lower-layer tunnel
CN113217021A (en) * 2021-04-30 2021-08-06 中铁十六局集团有限公司 Underground space close-range disturbance construction method and equipment
CN113585285A (en) * 2021-08-24 2021-11-02 中国地质大学(武汉) Device for eliminating influence of lattice column on axial force of support beam and mounting method
CN113914901A (en) * 2021-11-11 2022-01-11 中国铁建大桥工程局集团有限公司 Tunnel supporting structure
CN115095353A (en) * 2022-07-08 2022-09-23 山东建筑大学 Sedimentation control design method for jacking existing structure by grouting
CN115467367A (en) * 2022-08-17 2022-12-13 湖北工业大学 Construction method for actively compensating deformation of underpass operation tunnel in upper-layer engineering construction

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Cited By (25)

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Publication number Priority date Publication date Assignee Title
CN105909265A (en) * 2016-06-12 2016-08-31 中铁十九局集团轨道交通工程有限公司 Heaving-prevention retrusive deep-hole grouting system and method for passing through existing shield tunnel
CN105909265B (en) * 2016-06-12 2018-02-09 中铁十九局集团轨道交通工程有限公司 Pass through the anti-protuberance retrusive deep hole grouting system and method for existing shield tunnel
CN106988750A (en) * 2017-05-26 2017-07-28 中铁四局集团第三建设有限公司 The embodiment at existing station is worn under a kind of large span running tunnel super close distance
CN106988750B (en) * 2017-05-26 2023-07-14 中铁四局集团有限公司 Implementation mode of ultra-short-distance underpass of existing station of large-span interval tunnel
CN108952771A (en) * 2017-05-27 2018-12-07 中铁建大桥工程局集团第三工程有限公司 Existing rigid structures zero are worn under one kind deforms construction method
CN107313744B (en) * 2017-07-18 2023-05-05 山西晋城无烟煤矿业集团有限责任公司 Construction method for reinforcing goaf crossing of coal-bed gas well by grouting through small guide hole
CN107313744A (en) * 2017-07-18 2017-11-03 山西晋城无烟煤矿业集团有限责任公司 A kind of small guide hole grouting and reinforcing coal bed gas well passes through the construction method in goaf
CN107654234A (en) * 2017-07-24 2018-02-02 广州地铁设计研究院有限公司 A kind of construction method of subway tunnel crossing subway station diaphram wall
CN108798681A (en) * 2018-06-15 2018-11-13 中铁第勘察设计院集团有限公司 What middle hole method zero distance passed through existing subway station underpins system and its construction method
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CN115095353A (en) * 2022-07-08 2022-09-23 山东建筑大学 Sedimentation control design method for jacking existing structure by grouting
CN115095353B (en) * 2022-07-08 2023-08-15 山东建筑大学 Sedimentation control design method for jacking existing structure by grouting
CN115467367A (en) * 2022-08-17 2022-12-13 湖北工业大学 Construction method for actively compensating deformation of underpass operation tunnel in upper-layer engineering construction

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Application publication date: 20161026