CN208633837U - A kind of duct pieces of shield tunnel of the fire-proof plate suspender member equipped with shape memory effect - Google Patents

Abstract

The duct pieces of shield tunnel of the utility model relates to a kind of fire-proof plate suspender member equipped with shape memory effect, belongs to tunnel duct piece technical field.Including waterproof layer interconnected, section of jurisdiction ontology, precast reinforced mesh sheet, prefabricated fire-proof plate suspender member, impervious barrier, fire-proof plate, the section of jurisdiction ontology is made of armored concrete, waterproof layer is located at its outer surface, and impervious barrier is located at its inner surface, and precast reinforced mesh sheet is located inside and outside the ontology of section of jurisdiction；It is welded to connect at the top of the prefabricated fire-proof plate suspender member with fixedly connected part, suspender member bolt hole is arranged at bottom, and fixedly connected part is located at section of jurisdiction body interior；The prefabricated fire-proof plate suspender member is made of marmem.The utility model tunnel duct piece becomes entirety with prefabricated fire-proof plate suspender member, deformation can restore, moistureproof and waterproof effect is obvious, fireproofing and heat resistant performance is good, easy for construction, the vehicle high-speed disengaging positive and negative pressure wave impact in tunnel is avoided to cause fire-proof plate, suspender member malformation, tunnel duct piece high temperature is impaired serious.

Description

A kind of duct pieces of shield tunnel of the fire-proof plate suspender member equipped with shape memory effect

Technical field

The utility model belongs to tunnel duct piece technical field, more particularly to a kind of fire-proof plate equipped with shape memory effect The duct pieces of shield tunnel of suspender member.

Background technique

Shield duct piece is the main mounting structure of shield-tunneling construction, is the innermost layer barrier in tunnel, carries and resists soil layer pressure The effect of power, groundwater pressure and some special loads.Shield duct piece is the permanent lining, secondary lining structure of shield tunnel, shield pipe Tablet quality is directly related to the total quality and safety in tunnel, influences the waterproof performance and endurance quality in tunnel.

The production of shield duct piece generallys use high-strength water-tight concrete, raw to ensure reliable load and waterproof performance It produces mainly i.e. plastic after sealing placing concrete using finished product segment die.

The one kind of shield method as boring construction method is small due to including the influence of (1) to ambient enviroment；(2) construction not by The influence of synoptic climate such as strong wind, heavy rain, snow etc.；(3) in entire shield tunneling process, not by the various environment items of morphosequent The restriction of part, adaptability are good；(4) mechanization intensity is high, and construction efficiency is high；(5) automatically controlled using information-based, convenient for into The advantages that row construction management.In recent years, with the development of urban rail transit in China and the progress of shield technique, increasingly The traffic tunnels such as more city underground, across rivers sea tunnels all use shield technique to build.

One of most important disaster and the major Safety of social concerns during fire is exactly tunnel operation.Tunnel Fire once occurs, it will makes quite heavy casualties and huge economic loss, also brings along great social influence； Meanwhile also can Dui Chen Gun structure cause different degrees of damage, occur so as to cause the bearing capacity of Chen Gun structure and safety Different degrees of reduction.Dun structure Sui Dao Chen Gun structure be mainly multiple section of jurisdiction components connected by screwed joint it is assembled.Dangerous road When fire occurs, mainly section of jurisdiction component is caused greatly to damage, be dropped so as to cause entire tunnel segment structure bearing capacity and safety It is low.Therefore, how to guarantee that the safe and reliable of shield tunnel chip architecture is ground under fire it is necessary to improve and perfect tunnel structure fire-resistance Study carefully method, keeps security evaluation and repairing and reinforcement after its resisting fire design and fire more scientific and reasonable.

Tunnel concrete structure thermal insulation layer flameproof protection method mainly has sprayed fire proofing coating and laying fire-proof plate.Due to tunnel The factors such as deformation, the leak of road structure make fireproof coating layer easy to crack and material property reduces, and not only influence flameproof effect, And influence service life;And laying fire-proof plate scheme is used, and although having adapted to certain deformation requirements, its piece, metal Partial heat is transmitted to body structure surface by fastener, and surface structure is caused to damage, and construction and subsequent maintenance are inconvenient.

Tunnel recombination fire protection design is a kind of systematic measures for tunnel concrete structure flameproof protection, is hung with special The flexible way of pendant hanging mental keel effectively absorbs because of adverse factors such as section of jurisdiction harmomegathus, sedimentation, deformations, makes to adhere to it On fire proof construction will not be destroyed;It selects simultaneously and has excellent impact strength and anti-folding failing load surface plate, have Effect absorbs positive and negative pressure shock wave when vehicle high-speed disengaging, meeting.

Therefore, it is necessary to a kind of duct pieces of shield tunnel of the fire-proof plate suspender member equipped with shape memory effect of utility model, Deformation and recovery capability of the fire-proof plate on tunnel duct piece are improved, the assembled degree of tunnel duct piece and suspender member is improved.

Utility model content

In order to solve above-mentioned technical problem, the utility model provides a kind of fire-proof plate equipped with shape memory effect The duct pieces of shield tunnel of suspender member, mainly for exploitation makes tunnel duct piece and prefabricated fire-proof plate suspender member become whole, assembled Degree is high, suspender member has the tunnel duct piece that memory effect, moistureproof and waterproof effect are obvious, fireproofing and heat resistant performance is good, easy for construction, Fire-proof plate caused by vehicle high-speed disengaging positive and negative pressure wave impact, suspender member structure in tunnel is avoided to be deformed, tunnel duct piece is high Temperature is damaged serious problem.

The technical solution adopted in the utility model is as follows:

A kind of duct pieces of shield tunnel of the fire-proof plate suspender member equipped with shape memory effect of the utility model, including mutually interconnect Waterproof layer, section of jurisdiction ontology, precast reinforced mesh sheet, the prefabricated fire-proof plate suspender member, impervious barrier, fire-proof plate connect, the section of jurisdiction ontology It is made of armored concrete, waterproof layer is located at its outer surface, and impervious barrier is located at its inner surface, and two layers of precast reinforced mesh sheet distinguishes position On the inside of the waterproof layer and impervious barrier of section of jurisdiction ontology, and it is all located at the inside of section of jurisdiction ontology；The prefabricated fire-proof plate suspender member packet Cross fixedly connected part, rectangle fixing piece, hanging bar are included, and arranges that spacing is corresponding with the specification size of fire-proof plate, hangs bar Top is connected through a screw thread with cross fixedly connected part, and bottom and rectangle fixing piece are welded to connect, and arranges the radian with tunnel And change, and be equipped with suspender member bolt hole, cross fixedly connected part is embedded in section of jurisdiction body interior；The fire-proof plate passes through spiral shell Bolt is fixed on the rectangle fixing piece of fire-proof plate suspender member bottom, and the connecting sewing between fire-proof plate is sealed by fireproof gum；It is described Structural Test of Tunnel Segments is successively from outside to inside: waterproof layer, precast reinforced mesh sheet, section of jurisdiction ontology, prefabricated fire-proof plate suspender member, prefabricated Reinforced mesh, seal gas thermal insulation layer, fire-proof plate.

Further, the waterproof layer is laid with by ternary ethylene rubber waterproof roll point bonding.

Further, the impervious barrier is in one layer of modified waterproof asphalt material of section of jurisdiction body internal surface brushing.

Further, the hanging bar is made of marmem.

Further, the cross fixedly connected part, rectangle fixing piece are made of fire resisting stainless steel.

Further, it is described install fire-proof plate after, both ends and connecting sewing are sealed, form fire-proof plate to section of jurisdiction ontology Seal gas thermal insulation layer.

The utility model has the beneficial effects that

The effect and advantage of the utility model are that tunnel duct piece and prefabricated fire-proof plate suspender member is made to become whole, assembled journey Degree is high, suspender member has the tunnel duct piece that memory effect, moistureproof and waterproof effect are obvious, fireproofing and heat resistant performance is good, easy for construction, keeps away Exempt from fire-proof plate caused by vehicle high-speed disengaging positive and negative pressure wave impact, suspender member structure in tunnel to be deformed, tunnel duct piece high temperature It is damaged serious problem.

Detailed description of the invention

Fig. 1 is that the duct pieces of shield tunnel for the fire-proof plate suspender member that the utility model is equipped with shape memory effect does not install fire prevention Structure chart when plate；

Fig. 2 is that the duct pieces of shield tunnel for the fire-proof plate suspender member that this utility model is equipped with shape memory effect installs fire prevention Structure chart after plate；

Fig. 3 is fire-proof plate and rectangle fixing piece connection structure detail drawing in Fig. 2；

Fig. 4 is cross fixedly connected part, prefabricated fire-proof plate suspender member, rectangle fixing piece attachment structure schematic diagram.

In figure, 1 is waterproof layer；2 be section of jurisdiction ontology；3 be precast reinforced mesh sheet；4 be prefabricated fire-proof plate suspender member；5 be anti- Infiltration layer；6 be fire-proof plate；7 be cross fixedly connected part；8 be suspender member bolt hole；9 be bolt；10 be fireproof gum；11 be close Seal air heat-insulation layer；12 be rectangle fixing piece；13 be hanging bar.

Specific embodiment

The utility model is described in detail with reference to the accompanying drawings and examples:

Embodiment: as Figure 1-Figure 4, the utility model includes waterproof layer 1 interconnected, section of jurisdiction ontology 2, pre-manufactured steel Muscle mesh sheet 3, prefabricated fire-proof plate suspender member 4, impervious barrier 5, fire-proof plate 6, the section of jurisdiction ontology 2 are made of armored concrete, waterproof Layer 1 is located at its outer surface, and impervious barrier 5 is located at its inner surface, and two layers of precast reinforced mesh sheet 3 is located at the waterproof of section of jurisdiction ontology 2 5 inside of layer 1 and impervious barrier, and it is all located at the inside of section of jurisdiction ontology 2；The prefabricated fire-proof plate suspender member 4 is fixed including cross Connector 7, rectangle fixing piece 12, hanging bar 13, and arrange that spacing is corresponding with the specification size of fire-proof plate 6,13 top of hanging bar Be connected through a screw thread with cross fixedly connected part 7, bottom and rectangle fixing piece 12 are welded to connect, arrangement with the radian in tunnel and Change, and be equipped with suspender member bolt hole 8, cross fixedly connected part 7 is embedded in inside section of jurisdiction ontology 2；The fire-proof plate 6 passes through Bolt 9 is fixed on the rectangle fixing piece 12 of 4 bottom of fire-proof plate suspender member, and the connecting sewing between fire-proof plate 6 passes through fireproof gum 10 Sealing；The Structural Test of Tunnel Segments is successively from outside to inside: waterproof layer 1, precast reinforced mesh sheet 3, section of jurisdiction ontology 2, prefabricated fire prevention Plate suspender member 4, precast reinforced mesh sheet 3, seal gas thermal insulation layer 11, fire-proof plate 6.

As shown in Figure 1, the waterproof layer 1 is laid with by ternary ethylene rubber waterproof roll point bonding.

As shown in Figure 1, Figure 2, shown, the impervious barrier 5 is to apply in 2 inner surface brushing of section of jurisdiction ontology, one layer of modified asphalt waterproof Material.

As shown in Figure 1 and Figure 2, the hanging bar 13 is made of marmem.

As shown in Figure 3, Figure 4, the cross fixedly connected part 7, rectangle fixing piece 12 are made of fire resisting stainless steel.

As shown in Figure 1 and Figure 2, it is described install fire-proof plate 6 after, both ends and connecting sewing are sealed, make fire-proof plate 6 to section of jurisdiction Ontology 2 forms seal gas thermal insulation layer 11.

Working principle of the utility model is: be located at 2 outer surface of section of jurisdiction ontology waterproof layer 1 and impervious barrier 5 pairs of inner surface Layer ensure, improve the waterproof, seepage control ability of tunnel duct piece, the cross fixedly connected part 7 inside section of jurisdiction ontology 2 with it is prefabricated Fire-proof plate suspender member 4 is welded to connect, and becomes an entirety, and cross fixedly connected part 7 ensure that prefabricated fire-proof plate hanging The fastness of part 4, hanging bar 13 are made of marmem, make it have shape memory effect, when generation excessive deformation When can restore, and then prevent the deformation of fire-proof plate 6, finally seal both ends and connecting sewing, form seal gas thermal insulation layer 11, protect The heat-insulating capability under fire conditions is demonstrate,proved.

The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art For art personnel, without departing from the principle of this utility model, several improvements and modifications can also be made, these improve and Retouching also should be regarded as the protection scope of the utility model.

Claims (2)

1. a kind of duct pieces of shield tunnel of the fire-proof plate suspender member equipped with shape memory effect, it is characterised in that: including mutually interconnecting Waterproof layer (1), section of jurisdiction ontology (2), precast reinforced mesh sheet (3), prefabricated fire-proof plate suspender member (4), the impervious barrier (5), fire prevention connect Plate (6), the section of jurisdiction ontology (2) are made of armored concrete, and waterproof layer (1) is located at its outer surface, and impervious barrier (5) position is in the inner Surface, two layers of precast reinforced mesh sheet (3) is located on the inside of the waterproof layer (1) and impervious barrier (5) of section of jurisdiction ontology (2), and all positions In the inside of section of jurisdiction ontology (2)；The prefabricated fire-proof plate suspender member (4) includes cross fixedly connected part (7), rectangle fixing piece (12), bar (13) are hung, and arranges that spacing is corresponding with the specification size of fire-proof plate (6), it is solid with cross at the top of hanging bar (13) To determine connector (7) to be connected through a screw thread, bottom and rectangle fixing piece (12) are welded to connect, and arrangement changes with the radian in tunnel, And suspender member bolt hole (8) are equipped with, it is internal that cross fixedly connected part (7) is embedded in section of jurisdiction ontology (2)；The fire-proof plate (6) It is fixed on by bolt (9) on the rectangle fixing piece (12) of fire-proof plate suspender member (4) bottom, the connecting sewing between fire-proof plate (6) It is sealed by fireproof gum (10)；The Structural Test of Tunnel Segments is successively from outside to inside: waterproof layer (1), precast reinforced mesh sheet (3), Section of jurisdiction ontology (2), prefabricated fire-proof plate suspender member (4), precast reinforced mesh sheet (3), seal gas thermal insulation layer (11), fire-proof plate (6).

2. a kind of duct pieces of shield tunnel of the fire-proof plate suspender member equipped with shape memory effect as described in claim 1, feature It is: after installing fire-proof plate (6), both ends and connecting sewing is sealed, fire-proof plate (6) is made to form sealing sky to section of jurisdiction ontology (2) Air bound thermosphere (11).