CN205013013U - Secretly dig station supporting construction suitable for last soft hard formation down - Google Patents

Secretly dig station supporting construction suitable for last soft hard formation down Download PDF

Info

Publication number
CN205013013U
CN205013013U CN201520787785.1U CN201520787785U CN205013013U CN 205013013 U CN205013013 U CN 205013013U CN 201520787785 U CN201520787785 U CN 201520787785U CN 205013013 U CN205013013 U CN 205013013U
Authority
CN
China
Prior art keywords
tunnel
pilot tunnel
pilot
arch
longeron
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201520787785.1U
Other languages
Chinese (zh)
Inventor
刘训房
姜谙男
孔汇川
周朝伟
沙权贤
张广涛
孙宏伟
梁彩
郑晓冬
彭志川
林桂枫
刘文涛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dalian Maritime University
First Engineering Co Ltd of China Railway Construction Bridge Engineering Bureau Group Co Ltd
Original Assignee
Dalian Maritime University
First Engineering Co Ltd of China Railway Construction Bridge Engineering Bureau Group Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dalian Maritime University, First Engineering Co Ltd of China Railway Construction Bridge Engineering Bureau Group Co Ltd filed Critical Dalian Maritime University
Priority to CN201520787785.1U priority Critical patent/CN205013013U/en
Application granted granted Critical
Publication of CN205013013U publication Critical patent/CN205013013U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model discloses a secretly dig station supporting construction suitable for last soft hard formation down, include: the lower pilot tunnel of excavation formation in advance, last pilot tunnel, left pilot tunnel and right pilot tunnel, a plurality of center pillars of laying in proper order along tunnel length direction, center pillar one end with lay the last longeron of going up in the pilot tunnel is connected, the other end and laying lower longeron in the pilot tunnel is connected down, lay the zuo guanliang of left side pilot tunnel lower left corner with lay the right guan liang of right side pilot tunnel lower right corner, longeron and left guan liang's left knot hunch and the right side knot hunch that longeron and right guanliang are connected respectively to both ends are connected respectively to both ends, both ends are fixed respectively at tunnel left side secondary lining structure and the medium plate of tunnel right side secondary lining structure on the wall, set up through well longeron at the medium plate middle part the center pillar middle part, the utility model discloses can satisfy the excavation span big, subside and warp the strict requirement of control to also there is better advantage in construction security and efficiency of construction.

Description

Be applicable to the Station supporting and protection structure of upper-soft lower-hard ground
Technical field
The utility model relates to a kind of Station supporting and protection structure, is specially the Station supporting and protection structure being applicable to upper-soft lower-hard ground.
Background technology
Build for city underground Station, more common construction has cavern-pile method (PBA), CRD method etc., and the supporting and protection structure that above-mentioned engineering method is formed after construction respectively has quality relative to different geological condition and construction requirement.Upper-soft lower-hard ground is a kind of special geology, and the unstability of existing soft rock strata, has again the intensity of hard rock.For mechanism and the gongwu mechanical characteristic of upper soft lower hardpan, rational supporting and protection structure ensures Station safety, smoothly and the important technical of rapid construction.The supporting and protection structure formed after cavern-pile method construction of the prior art has the shortcoming that piecemeal is many, surface settlement is large, and the supporting and protection structure formed after CRD method construction of the prior art generally adopts interim median septum and cross binding, and settlement Control does not have advantage.
Summary of the invention
The utility model for the proposition of above problem, and develops a kind of Station supporting and protection structure being applicable to upper-soft lower-hard ground.
The technical solution of the utility model is:
Be applicable to a Station supporting and protection structure for upper-soft lower-hard ground, comprise:
Excavate the lower pilot tunnel of formation, upper pilot tunnel, left pilot tunnel and right pilot tunnel in advance; The vertical section of described lower pilot tunnel is positioned in the middle of tunnel cross-section bottom; The vertical section of described upper pilot tunnel is positioned in the middle of tunnel cross-section top; Described left pilot tunnel and described right pilot tunnel lay respectively at the described upper pilot tunnel left and right sides;
Multiple center pillar laid successively along length of tunnel direction; Described center pillar one end is connected with the upper longeron be laid in described upper pilot tunnel, and the other end is connected with the lower longeron be laid in described lower pilot tunnel; Described upper longeron and described lower longeron extend along length of tunnel direction;
Be laid in the Zuo Guanliang of described left pilot tunnel lower left corner and be laid in the right Guan Liang of described right pilot tunnel lower right corner;
Two ends connect longeron respectively and encircle with the right button that two ends are connected upper longeron and right Guan Liang respectively with the left button arch of left Guan Liang; Described left Guan Liang is arranged on the arch springing place, outside of described left button arch; Described right Guan Liang is arranged on the arch springing place, outside of described right button arch;
Be laid in the secondary liner structure on left tunnel side wall and Tunnel Right side wall;
Two ends are separately fixed at the middle plate of the secondary liner structure on left tunnel side wall and the secondary liner structure on Tunnel Right side wall; Set up in the middle part of described center pillar by middle longeron in the middle part of described middle plate;
Be laid in the base plate at described lower longeron two ends;
And multiple prestress anchorage cable be anchored on left tunnel side wall and Tunnel Right side wall;
Further, described upper pilot tunnel, left pilot tunnel, right pilot tunnel, left button arch and right button arch have all applied initial stage liner structure; Described Station supporting and protection structure also has multiple sensor group comprising pressure cell, reinforcing rib meter, displacement meter, strain meter and pore pressure gauge; Multiple pressure cell be arranged on respectively pilot tunnel, left pilot tunnel, right pilot tunnel, left buckle arch and right buckle encircle initial stage liner structure and tunnel surrounding between; The initial stage liner structure that multiple reinforcing rib meter is arranged on pilot tunnel, left pilot tunnel, right pilot tunnel, left button arch and right button arch is respectively inner; Multiple displacement meter be arranged on respectively pilot tunnel, left pilot tunnel, right pilot tunnel, left buckle arch and right buckle encircle initial stage liner structure and tunnel surrounding between; Multiple strain meter be arranged on respectively pilot tunnel, left pilot tunnel, right pilot tunnel, left buckle arch and right buckle arch initial stage liner structure inside; Multiple pore pressure gauge is arranged on respectively and encircles and right to buckle the mutually closely connected tunnel surrounding of the initial stage liner structure that encircles inner with upper pilot tunnel, left pilot tunnel, right pilot tunnel, left button;
Further, on the crown of described left pilot tunnel, upper pilot tunnel, right pilot tunnel and lower pilot tunnel and described left button arch and described right button encircle on be provided with per-fore pouring liquid with small pipe ruggedized construction;
Further, the hole wall lower left quarter of described left pilot tunnel is provided with the first lock foot anchoring stock be anchored on described left Guan Liang; The hole wall right lower quadrant of described right pilot tunnel is provided with the second lock foot anchoring stock be anchored on described right Guan Liang;
Further, described left tunnel side wall and Tunnel Right side wall are provided with multiple grouting rock bolt.
Owing to have employed technique scheme, the Station supporting and protection structure of what the utility model provided be applicable to upper-soft lower-hard ground, set up Station for upper-soft lower-hard ground and propose the structural system pouring down and prop up the supporting of button arch, this supporting and protection structure can meet the requirement that excavation span is large, settlement control is strict, and also has good advantage on working security and efficiency of construction; Compared with the supporting and protection structure that cavern-pile method is corresponding, supporting and protection structure of the present utility model only needs a lower pilot tunnel and center pillar as support, the left button arch of top and the right hard rock mass of arch by bottom of detaining are as support, two lateral braces can be saved, while reaching supporting requirement, additionally reduce the working procedure that pilot drive and pile foundation space enclosing structure etc. are complicated, improve efficiency of construction.
Accompanying drawing explanation
Fig. 1 is the structural representation of Station supporting and protection structure described in the utility model;
Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9 and Figure 10 are the change schematic diagrames of the utility model Station supporting and protection structure in digging process;
Figure 11 is the structured flowchart of sensor group described in the utility model.
In figure: 1, lower pilot tunnel, 2, upper pilot tunnel, 3, left pilot tunnel, 4, right pilot tunnel, 5, center pillar, 6, upper longeron, 7, lower longeron, 8, Zuo Guanliang, 9, right Guan Liang, 10, left button arch, 11, right button encircles, 12, secondary liner structure, 13, middle plate, 14, middle longeron, 15, base plate, 16, prestress anchorage cable, 17, per-fore pouring liquid with small pipe ruggedized construction, the 18, first lock foot anchoring stock, 19, the second lock foot anchoring stock, 20, grouting rock bolt, 21, sensor group.
Detailed description of the invention
A kind of Station supporting and protection structure being applicable to upper-soft lower-hard ground as shown in Figure 1 to 11, comprising: excavate the lower pilot tunnel 1 of formation, upper pilot tunnel 2, left pilot tunnel 3 and right pilot tunnel 4 in advance; The vertical section of described lower pilot tunnel 1 is positioned in the middle of tunnel cross-section bottom; The vertical section of described upper pilot tunnel 2 is positioned in the middle of tunnel cross-section top; Described left pilot tunnel 3 and described right pilot tunnel 4 lay respectively at described upper pilot tunnel 2 left and right sides; Multiple center pillar 5 laid successively along length of tunnel direction; Described center pillar 5 one end is connected with the upper longeron 6 be laid in described upper pilot tunnel 2, and the other end is connected with the lower longeron 7 be laid in described lower pilot tunnel 1; Described upper longeron 6 and described lower longeron 7 extend along length of tunnel direction; Be laid in the left hat beam 8 of described left pilot tunnel 3 lower left corner and be laid in the right hat beam 9 of described right pilot tunnel 4 lower right corner; The left arch 10 of buckleing that two ends connect longeron 6 and left hat beam 8 is respectively connected upper longeron 6 respectively with two ends and the right of right hat beam 9 buckles arch 11; Described left hat beam 8 is arranged on the described left arch springing place, outside buckleing arch 10; Described right hat beam 9 is arranged on the described right arch springing place, outside buckleing arch 11; Be laid in the secondary liner structure 12 on left tunnel side wall and Tunnel Right side wall; Two ends are separately fixed at the middle plate 13 of the secondary liner structure 12 on left tunnel side wall and the secondary liner structure 12 on Tunnel Right side wall; Set up in the middle part of described center pillar 5 by middle longeron 14 in the middle part of described middle plate 13; Be laid in the base plate 15 at described lower longeron 7 two ends; And multiple prestress anchorage cable 16 be anchored on left tunnel side wall and Tunnel Right side wall; Further, described upper pilot tunnel 2, left pilot tunnel 3, right pilot tunnel 4, left button arch 10 and right button arch 11 have all applied initial stage liner structure; Described Station supporting and protection structure also has multiple sensor group 21 comprising pressure cell, reinforcing rib meter, displacement meter, strain meter and pore pressure gauge; Multiple pressure cell is arranged on pilot tunnel 2, left pilot tunnel 3, right pilot tunnel 4 respectively, leftly buckles arch 10 and rightly buckle between the initial stage liner structure of arch 11 and tunnel surrounding; The initial stage liner structure that multiple reinforcing rib meter is arranged on pilot tunnel 2, left pilot tunnel 3, right pilot tunnel 4, left button arch 10 and right button arch 11 is respectively inner; Multiple displacement meter is arranged on pilot tunnel 2, left pilot tunnel 3, right pilot tunnel 4 respectively, leftly buckles arch 10 and rightly buckle between the initial stage liner structure of arch 11 and tunnel surrounding; Multiple strain meter is arranged on pilot tunnel 2, left pilot tunnel 3, right pilot tunnel 4 respectively, leftly buckles arch 10 and the right initial stage liner structure buckleing arch 11 is inner; Multiple pore pressure gauge is arranged on upper pilot tunnel 2, left pilot tunnel 3, right pilot tunnel 4 respectively, leftly buckles arch 10 and the mutually closely connected tunnel surrounding of the right initial stage liner structure buckleing arch 11 is inner; Further, per-fore pouring liquid with small pipe ruggedized construction 17 is provided with on the crown of described left pilot tunnel 3, upper pilot tunnel 2, right pilot tunnel 4 and lower pilot tunnel 1 and on described left button arch 10 and described right button arch 11; Further, the hole wall lower left quarter of described left pilot tunnel 3 is provided with the first lock foot anchoring stock 18 be anchored on described left hat beam 8; The hole wall right lower quadrant of described right pilot tunnel 4 is provided with the second lock foot anchoring stock 19 be anchored on described right hat beam 9; Further, described left tunnel side wall and Tunnel Right side wall are provided with multiple grouting rock bolt 20.
Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9 and Figure 10 shows the change schematic diagram of the utility model Station supporting and protection structure in digging process, namely the structural representation that Fig. 1 shows Station supporting and protection structure described in the utility model excavates and the supporting and protection structure of rear formation of having constructed, as Fig. 2 to Figure 10, and shown in Fig. 1, the work progress of Station supporting and protection structure described in the utility model is specific as follows: 1. as shown in Figure 2, according to lower pilot tunnel 1, upper pilot tunnel 2, the sequence of excavation in advance of left pilot tunnel 3 and right pilot tunnel 4, the successively lower pilot tunnel 1 of excavation, upper pilot tunnel 2, left pilot tunnel 3 and right pilot tunnel 4, when specifically excavating, lower pilot tunnel 1 should go up pilot tunnel 250m in advance, and upper pilot tunnel 2 should advanced left pilot tunnel 3 and right pilot tunnel 450m, in addition, before carrying out pilot drive, at described left pilot tunnel 3, upper pilot tunnel 2, the crown of right pilot tunnel 4 and lower pilot tunnel 1 is provided with per-fore pouring liquid with small pipe ruggedized construction 17, and described per-fore pouring liquid with small pipe ruggedized construction 17 comprises one deck advanced tubule, and each described advanced tubule all has the injected hole being marked with grouting serous fluid, at upper pilot tunnel 2, when left pilot tunnel 3 and right pilot tunnel 4 apply preliminary bracing, carry out the arrangement of respective sensor group 21, 2. as shown in Figure 3, multiple center pillar 5 is laid successively along length of tunnel direction, 3. as shown in Figure 4, longeron 6 in construction in upper pilot tunnel 2, longeron 7 under construction in lower pilot tunnel 1, center pillar 5 one end is connected with the upper longeron 6 be laid in described upper pilot tunnel 2, the other end is connected with the lower longeron 7 be laid in described lower pilot tunnel 1, left hat beam 8 is laid in left pilot tunnel 3 lower left corner, right hat beam 9 is laid in right pilot tunnel 4 lower right corner, and the first lock foot anchoring stock 18 be anchored on described left hat beam 8 is set at the hole wall lower left quarter of left pilot tunnel 3, at the hole wall right lower quadrant of right pilot tunnel 4, the second lock foot anchoring stock 19 be anchored on described right hat beam 9 is set, 4. as shown in Figure 5 and Figure 6, laying two ends connect longeron 6 respectively and the left of left hat beam 8 buckles arch 10, and two ends connect longeron 6 respectively and the right of right hat beam 9 buckles arch 11, described left button arch 10 and right button arch 11 all have preliminary bracing structure and secondary liner structure, wherein, the situation that the preliminary bracing structure construction that Fig. 5 shows left button arch 10 and right button arch 11 completes, Fig. 6 shows after the preliminary bracing structure construction of left button arch 10 and right button arch 11 completes, the situation that the secondary liner structure of left button arch 10 and right button arch 11 has been constructed, when left button arch 10 and right button arch 11 apply preliminary bracing, carry out the arrangement of respective sensor group 21, 5. as shown in Figure 7, pilot tunnel 2 and the soil body between left pilot tunnel 3 and right pilot tunnel 4 on excavation, left pilot tunnel 3 and the staggered excavation of right pilot tunnel 4, cut pilot tunnel part preliminary bracing structure, and preliminary bracing is carried out on the top of splitting left tunnel side wall and the Tunnel Right side wall dug out, and multiple grouting rock bolt 20 is set on the left tunnel side wall excavated out and Tunnel Right side wall and anchoring prestress anchor cable 16, 6. as shown in Figure 8, the left tunnel side wall and Tunnel Right side wall of preliminary bracing structure of having constructed to be constructed secondary liner structure 12, and lay the middle plate 13 that two ends are separately fixed at the secondary liner structure 12 on left tunnel side wall and the secondary liner structure 12 on Tunnel Right side wall, lay the middle longeron 14 between adjacent center pillar 5, set up in the middle part of described center pillar 5 by middle longeron 14 in the middle part of middle plate 13, described upper longeron 6, middle longeron 14 and the lower longitudinal centre line of longeron 7 and the longitudinal centre line in tunnel are parallel to each other, 7. as shown in Figure 9, adopt the downward stage excavation of benching tunnelling method to tunnel bottom, and preliminary bracing is carried out to the bottom of the left tunnel side wall excavated successively and Tunnel Right side wall, and multiple grouting rock bolt 20 is set on the left tunnel side wall excavated out and Tunnel Right side wall and anchoring prestress anchor cable 16, 8. as shown in Figure 10, base plate 15 is laid at described lower longeron 7 two ends, and on described base plate 15 During Initial Stage Construction supporting and protection structure and secondary liner structure, described left button arch 10 and right button arch 11 all have preliminary bracing structure and secondary liner structure, and the secondary liner structure that described left button arch 10 and right button arch 11 have, the secondary liner structure had with the secondary liner structure 12 on left tunnel side wall and Tunnel Right side wall and base plate 15 form an overall secondary liner structure jointly, 9. as shown in Figure 1, the base plate 15 be connected with lower longeron 7 left end arranges left platform, the base plate 15 be connected with lower longeron 7 right-hand member arranges right platform.
The installation site of the sensor group 21 shown in Fig. 2, Fig. 3, Fig. 4 and Fig. 5 is only signal, and in practice of construction, sensor group 21 should be determined according to field condition and geological prospecting result along the particular location in length of tunnel direction in supporting and protection structure in the early stage; Each information that sensor group 21 detects by wireless device in hole or can be exported by wired mode; Each information according to sensor feedback can draw tunnel surrounding parameter, supporting stressing conditions and deformation, and constructure scheme can be adjusted in time when finding that tunnel surrounding is weak or Support Deformation is abnormal, such as can change grouting amount and the range of grouting of per-fore pouring liquid with small pipe ruggedized construction 17.
As shown in figure 11, sensor group 21 described in the utility model comprises pressure cell, reinforcing rib meter, displacement meter, strain meter and pore pressure gauge, described sensor group 21 has multiple, particularly, at upper pilot tunnel 2, left pilot tunnel 3, right pilot tunnel 4, when left button arch 10 and right button arch 11 apply preliminary bracing, carry out the arrangement of respective sensor group 21, wherein, pressure cell, for monitoring the pressure information of tunnel surrounding to initial stage liner structure, can be arranged between initial stage liner structure that tunnel surrounding and upper pilot tunnel 2 have, between the initial stage liner structure that tunnel surrounding and left pilot tunnel 3 have, between the initial stage liner structure that tunnel surrounding and right pilot tunnel 4 have, tunnel surrounding and left button encircle between the 10 initial stage liner structures had, and tunnel surrounding and right button encircle between the 11 initial stage liner structures had, reinforcing rib meter, for monitoring in tunnel arch main muscle by force information, can be arranged on the initial stage liner structure that pilot tunnel 2 has inner, the initial stage liner structure that left pilot tunnel 3 has is inner, the initial stage liner structure that right pilot tunnel 4 has is inner, the initial stage liner structure that left button arch 10 has is inner, and the initial stage liner structure that right button arch 11 has is inner, displacement meter, for monitoring the deformation displacement information between tunnel arch and tunnel surrounding, can be arranged between initial stage liner structure that tunnel surrounding and upper pilot tunnel 2 have, between the initial stage liner structure that tunnel surrounding and left pilot tunnel 3 have, between the initial stage liner structure that tunnel surrounding and right pilot tunnel 4 have, tunnel surrounding and left button encircle between the 10 initial stage liner structures had, and tunnel surrounding and right button encircle between the 11 initial stage liner structures had, strain meter, for monitoring the stress information of lining concrete along length of tunnel direction, can be arranged on the initial stage liner structure that pilot tunnel 2 has inner, the initial stage liner structure that left pilot tunnel 3 has is inner, the initial stage liner structure that right pilot tunnel 4 has is inner, the initial stage liner structure that left button arch 10 has is inner, and the initial stage liner structure that right button arch 11 has is inner, pore pressure gauge, for monitoring the pore water pressure force information in tunnel surrounding, can install the tunnel surrounding mutually closely connected with the initial stage liner structure of upper pilot tunnel 2 inner, the tunnel surrounding mutually closely connected with the initial stage liner structure of left pilot tunnel 3 is inner, the tunnel surrounding mutually closely connected with the initial stage liner structure of right pilot tunnel 4 is inner, the tunnel surrounding mutually closely connected with the initial stage liner structure of left button arch 10 is inner, and the tunnel surrounding inside mutually closely connected with the initial stage liner structure of right button arch 11.
Station supporting and protection structure described in the utility model, set up Station for upper-soft lower-hard ground and propose the structural system pouring down and prop up the supporting of button arch, this supporting and protection structure can meet the requirement that excavation span is large, settlement control is strict, and also has good advantage on working security and efficiency of construction; Compared with the supporting and protection structure that cavern-pile method is corresponding, supporting and protection structure of the present utility model only needs a lower pilot tunnel and center pillar as support, the left button arch of top and the right hard rock mass of arch by bottom of detaining are as support, two lateral braces can be saved, while reaching supporting requirement, additionally reduce the working procedure that pilot drive and pile foundation space enclosing structure etc. are complicated, improve efficiency of construction; By per-fore pouring liquid with small pipe ruggedized construction i.e. top grouting and reinforcing weak soil, fully by lower floor's hard rock stratum as button arch brace, speed of application and safety excellent; The utility model is applicable to the construction of city underground Station.The utility model adopts center pillar to support the structural system of top left button arch and right button arch, center pillar permanent support, just can large area operation after top button arch completes.
The above; be only the utility model preferably detailed description of the invention; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; be equal to according to the technical solution of the utility model and inventive concept thereof and replace or change, all should be encompassed within protection domain of the present utility model.

Claims (5)

1. be applicable to a Station supporting and protection structure for upper-soft lower-hard ground, it is characterized in that described Station supporting and protection structure comprises:
Excavate the lower pilot tunnel of formation, upper pilot tunnel, left pilot tunnel and right pilot tunnel in advance; The vertical section of described lower pilot tunnel is positioned in the middle of tunnel cross-section bottom; The vertical section of described upper pilot tunnel is positioned in the middle of tunnel cross-section top; Described left pilot tunnel and described right pilot tunnel lay respectively at the described upper pilot tunnel left and right sides;
Multiple center pillar laid successively along length of tunnel direction; Described center pillar one end is connected with the upper longeron be laid in described upper pilot tunnel, and the other end is connected with the lower longeron be laid in described lower pilot tunnel; Described upper longeron and described lower longeron extend along length of tunnel direction;
Be laid in the Zuo Guanliang of described left pilot tunnel lower left corner and be laid in the right Guan Liang of described right pilot tunnel lower right corner;
Two ends connect longeron respectively and encircle with the right button that two ends are connected upper longeron and right Guan Liang respectively with the left button arch of left Guan Liang; Described left Guan Liang is arranged on the arch springing place, outside of described left button arch; Described right Guan Liang is arranged on the arch springing place, outside of described right button arch;
Be laid in the secondary liner structure on left tunnel side wall and Tunnel Right side wall;
Two ends are separately fixed at the middle plate of the secondary liner structure on left tunnel side wall and the secondary liner structure on Tunnel Right side wall; Set up in the middle part of described center pillar by middle longeron in the middle part of described middle plate;
Be laid in the base plate at described lower longeron two ends;
And multiple prestress anchorage cable be anchored on left tunnel side wall and Tunnel Right side wall.
2. the Station supporting and protection structure being applicable to upper-soft lower-hard ground according to claim 1, is characterized in that described upper pilot tunnel, left pilot tunnel, right pilot tunnel, left button arch and right button arch have all applied initial stage liner structure; Described Station supporting and protection structure also has multiple sensor group comprising pressure cell, reinforcing rib meter, displacement meter, strain meter and pore pressure gauge; Multiple pressure cell be arranged on respectively pilot tunnel, left pilot tunnel, right pilot tunnel, left buckle arch and right buckle encircle initial stage liner structure and tunnel surrounding between; The initial stage liner structure that multiple reinforcing rib meter is arranged on pilot tunnel, left pilot tunnel, right pilot tunnel, left button arch and right button arch is respectively inner; Multiple displacement meter be arranged on respectively pilot tunnel, left pilot tunnel, right pilot tunnel, left buckle arch and right buckle encircle initial stage liner structure and tunnel surrounding between; Multiple strain meter be arranged on respectively pilot tunnel, left pilot tunnel, right pilot tunnel, left buckle arch and right buckle arch initial stage liner structure inside; Multiple pore pressure gauge is arranged on respectively and encircles and right to buckle the mutually closely connected tunnel surrounding of the initial stage liner structure that encircles inner with upper pilot tunnel, left pilot tunnel, right pilot tunnel, left button.
3. the Station supporting and protection structure being applicable to upper-soft lower-hard ground according to claim 1, on the crown that it is characterized in that described left pilot tunnel, upper pilot tunnel, right pilot tunnel and lower pilot tunnel and described left button arch and described right button encircle on be provided with per-fore pouring liquid with small pipe ruggedized construction.
4. the Station supporting and protection structure being applicable to upper-soft lower-hard ground according to claim 1, is characterized in that the hole wall lower left quarter of described left pilot tunnel is provided with the first lock foot anchoring stock be anchored on described left Guan Liang; The hole wall right lower quadrant of described right pilot tunnel is provided with the second lock foot anchoring stock be anchored on described right Guan Liang.
5. the Station supporting and protection structure being applicable to upper-soft lower-hard ground according to claim 1, is characterized in that described left tunnel side wall and Tunnel Right side wall are provided with multiple grouting rock bolt.
CN201520787785.1U 2015-10-10 2015-10-10 Secretly dig station supporting construction suitable for last soft hard formation down Active CN205013013U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520787785.1U CN205013013U (en) 2015-10-10 2015-10-10 Secretly dig station supporting construction suitable for last soft hard formation down

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520787785.1U CN205013013U (en) 2015-10-10 2015-10-10 Secretly dig station supporting construction suitable for last soft hard formation down

Publications (1)

Publication Number Publication Date
CN205013013U true CN205013013U (en) 2016-02-03

Family

ID=55211622

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520787785.1U Active CN205013013U (en) 2015-10-10 2015-10-10 Secretly dig station supporting construction suitable for last soft hard formation down

Country Status (1)

Country Link
CN (1) CN205013013U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106529002A (en) * 2016-11-04 2017-03-22 长安大学 Design analysis method for auxiliary support system of tunnel steel frame
CN107288665A (en) * 2017-08-21 2017-10-24 中国建筑第八工程局有限公司 The construction method of Station
CN111577317A (en) * 2020-04-30 2020-08-25 中铁隧道局集团有限公司 Construction method for large-span underground excavation subway station cavern in upper-soft and lower-hard stratum

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106529002A (en) * 2016-11-04 2017-03-22 长安大学 Design analysis method for auxiliary support system of tunnel steel frame
CN106529002B (en) * 2016-11-04 2019-11-08 长安大学 A kind of Design and analysis methods of tunnel steelframe Auxiliary support system
CN107288665A (en) * 2017-08-21 2017-10-24 中国建筑第八工程局有限公司 The construction method of Station
CN111577317A (en) * 2020-04-30 2020-08-25 中铁隧道局集团有限公司 Construction method for large-span underground excavation subway station cavern in upper-soft and lower-hard stratum

Similar Documents

Publication Publication Date Title
CN104264688B (en) Manually digging hole non-uniform pile support construction process
CN102226403B (en) Construction method of large-span subway station main body by using arched cover method and station main body structure
CN105840207B (en) Construction method for comprehensive tunnel entering structure of large-span tunnel penetrating shallow-buried bias-pressure loose accumulation body
CN202707075U (en) Long-span subway station main structure constructed based on column and arch method
CN101338678B (en) Supporting arch hidden digging top-down construction method
CN105257301A (en) Method for reinforcing collapse of weak surrounding rock of shallow embedded and mining tunnel
CN205742213U (en) Foundation pit supporting construction
CN102852525B (en) Underground tunnel enlarging and excavating method from small section of single-line tunnel to large section of double-line tunnel
CN102748040B (en) Main structure for metro long-span station and pillar arching construction method thereof
CN102660955B (en) Quick construction method for foundation pit slope support
CN201991017U (en) Subway large-span station body structure based on arch cover method construction forming
CN105370289B (en) A kind of existing pipeline overlength Dryopteris sublaetaChing et Hsu method of complex environment
CN104653187A (en) Excavation method for water-rich sand stratum geology large cross-section tunnel
CN205013013U (en) Secretly dig station supporting construction suitable for last soft hard formation down
CN111305876A (en) Deep roadway anchoring-splitting grouting-hydraulic fracturing pressure relief cooperative control method
CN107023300A (en) A kind of use canopy, which is defended the doctrine, builds the construction method of subway station
CN110284885A (en) Shield inspection-pit construction method
CN104632227A (en) Subway station excavation technology of single-layer beam arch structure
CN107288642A (en) PBA construction technologies
CN106050262A (en) Composite lining structure for super-large-span pile-foundation-joist-based bearing arched tunnel and construction method thereof
CN205225281U (en) For a short time, it secretly digs section support construction structures than super shallow rectangle that buries to cover to stride
CN109441456A (en) A kind of the tunnel structure and its construction method of weakness Facility-sliding strata
CN104847362A (en) Large-span subway station underground excavation construction method for hard rock stratum
CN106930321B (en) The construction method of underground structure is built in a kind of stake of pipe-jacking with large diameter combination hole
CN105863650A (en) Tunneling construction method with first wall construction and second tunneling construction

Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model