A kind of internal support of foundation pit of reinforcing member and the application reinforcing member
Technical field
The present invention relates to a kind of foundation pit supporting structure, and in particular to branch in the foundation pit of a kind of reinforcing member and the application reinforcing member
Support.
Background technology
In order to ensure the safety of underground structure and foundation pit surrounding enviroment, it is necessary to foundation pit side-wall and around using support, plus
Gu etc. safeguard measure.Current foundation pit support system generally includes the foundation pit enclosure stake around margin of foundation pit setting, is enclosed positioned at foundation pit
Enclosing cold beam and be arranged on the internal support of foundation pit enclosed between cold beam on the inside of fender pile.Internal support of foundation pit generally includes to add by prestressing force
Casting die is withstood on prestressing force pressing means to supportting the shaped steel inner support beam between cold beam is enclosed, shaped steel inner support beam by hydraulic jack
Apply prestressing force to supportting between the purlin beam of opposite sides, support to foundation pit is formed with this, ensures foundation pit support system
Support strength.
During being pressurizeed using hydraulic jack on prestressing force pressing means and in follow-up Excavation Process,
A certain amount of changing of the relative positions often occurs in the up-down direction between the end of prestressing force pressing means and shaped steel inner support beam, influences base
Cheat inner support safety and stablization.
On the other hand, current internal support of foundation pit before shaped steel inner support beam is installed, it is necessary in shaped steel inner support beam
Lower section sets up bracket, and bracket generally includes two shaped steel being fixed on foundation pit bottom surface columns and is arranged on shaped steel column top use
In the support beam of support shaped steel inner support beam.Current shaped steel inner support beam apply prestressing force to support on purlin beam it
Before, it is supported by bracket, and the horizontal level state for the shaped steel inner support beam being supported on bracket can not be protected
Card, the easy run-off the straight of shaped steel inner support beam, will applying prestressing force by jack after shaped steel inner support beam run-off the straight
After shaped steel inner support beam is to supportting on purlin beam, shaped steel inner support beam to support axle power also by run-off the straight, not in horizontal linear
On;So as to reduce shaped steel inner support beam to the enabling capabilities of foundation pit and the stability of support.
The content of the invention
The first object of the present invention be to provide for one kind can effectively ensure that prestressing force pressing means and shaped steel inner support beam it
Between connective stability, avoid in the up-down direction occurring between the end of prestressing force pressing means and shaped steel inner support beam certain
The changing of the relative positions of amount, influences the reinforcing member of internal support of foundation pit safety and stablization.
Another first purpose of the present invention is to overcome the water of the shaped steel inner support beam by bracket support in the prior art
Prosposition configuration state can not be guaranteed, the easy run-off the straight of shaped steel inner support beam, and reduce branch of the shaped steel inner support beam to foundation pit
The problem of support ability and the stability of support, there is provided one kind can ensure shaped steel inner support beam with horizontality to supportting in purlin beam
Between, so as to ensure internal support of foundation pit of the shaped steel inner support beam to the stability of the enabling capabilities of foundation pit and support.
The technical scheme is that:
A kind of reinforcing member, including upper securing plate, the lower securing plate parallel with upper securing plate and the upper securing plate of connection and lower reinforcing
The side securing plate of plate, the upper securing plate are located at the same side of side securing plate, and side securing plate and upper securing plate with lower securing plate
It is perpendicular.
The reinforcing member of this programme can effectively ensure that the connective stability between prestressing force pressing means and shaped steel inner support beam, keep away
Exempt from that a certain amount of changing of the relative positions can occur in the up-down direction between the end of prestressing force pressing means and shaped steel inner support beam, influence foundation pit
Inner support safety and stablization.
Preferably, the upper surface of upper securing plate is equipped with upper reinforcing plate, and upper reinforcing plate and upper securing plate are perpendicular.We
Case structure can improve the structural strength of reinforcing member in itself.
Preferably, the lower surface of lower securing plate is equipped with lower reinforcing plate, and lower reinforcing plate and lower securing plate are perpendicular.We
Case structure can improve the structural strength of reinforcing member in itself.
Preferably, be equipped with some interior reinforcing plates being equally spaced between upper securing plate and lower securing plate, interior reinforcing plate with
Upper securing plate is perpendicular, and interior reinforcing plate and side securing plate are perpendicular.It is strong that this programme structure can improve the structure of reinforcing member in itself
Degree.
Preferably, upper securing plate is equipped with some bolt connecting holes, lower securing plate is equipped with some bolt connecting holes, side
Securing plate is equipped with some bolt connecting holes.
A kind of internal support of foundation pit, including prestressing force pressing means, positioned at the shaped steel inner support beam enclosed in cold beam and positioned in advance should
Reinforcing member between power pressing means and shaped steel inner support beam, the first end of the shaped steel inner support beam are against the medial surface for enclosing cold beam
On, the second end of shaped steel inner support beam is against on the medial surface for enclosing cold beam by reinforcing member and prestressing force pressing means, branch in shaped steel
The second end of support beam is located between the upper securing plate of reinforcing member and lower securing plate, and the second end of shaped steel inner support beam is against side and adds
On the surface of solid plate;The prestressing force pressing means include can mutually distracted two support members, and wherein a support member is supported
It is connected on the medial surface for enclosing cold beam, another support member is connected by bolt with the side securing plate of reinforcing member.
Preferably, further including the bracket component for being used to support shaped steel inner support beam, bracket component is arranged on including two
Shaped steel bracket in foundation pit enclosure stake, two shaped steel brackets are located at sustained height, and one of shaped steel bracket is located at branch in shaped steel
The lower section of the first end of beam is supportted, another shaped steel bracket is located at the lower section of the second end of shaped steel inner support beam;The shaped steel bracket
Including horizontal guide rail parallel with shaped steel inner support beam, along horizontal guide rail slide support slide and be arranged on support slide on
Equipoising support apparatus, the Equipoising support apparatus include being arranged on the vertical cylinder body supported on slide upper surface, are slidably arranged in
Support piston body in cylinder body, the piston limit for being arranged on the medial surface of vertical cylinder body and being located at below support piston body vertically
Block, the vertical support column being arranged on support piston body upper surface and be arranged on vertical support column upper end balanced support beam,
The lateral surface lower part of the vertical cylinder body is simultaneously equipped with Balanced interface positioned at the lower section of piston limit block, and Balanced interface is equipped with switch
Valve, the upper surface of vertical cylinder body are equipped with support column via, and vertical support column passes through support column via, and balanced support beam is positioned at perpendicular
The top of straight-cylinder body, and balanced support beam is parallel with support beam;The balance on vertical cylinder body on two shaped steel brackets connects
Mouth is connected by balancing connecting tube;The shaped steel inner support beam is supported on the balanced support beam of two shaped steel brackets.
This programme structure can ensure that shaped steel inner support beam, to supportting between purlin beam, avoids passing through bracket with horizontality
The horizontal level state of the shaped steel inner support beam of support can not be guaranteed, the easy run-off the straight of shaped steel inner support beam, reduction type
The problem of steel inner support beam is to the stability of the enabling capabilities of foundation pit and support.
The beneficial effects of the invention are as follows:
First, can effectively ensure that the connective stability between prestressing force pressing means and shaped steel inner support beam, prestressing force is avoided to pressurize
A certain amount of changing of the relative positions can occur between the end of part and shaped steel inner support beam in the up-down direction, influence internal support of foundation pit safety with
Stablize.
Second, it can ensure that shaped steel inner support beam, to supportting between purlin beam, is propped up with horizontality so as to ensure that shaped steel is interior
Beam is supportted to the enabling capabilities of foundation pit and the stability of support.
Brief description of the drawings
Fig. 1 is the top view of the reinforcing member of the embodiment of the present invention 1.
Fig. 2 is a kind of part section structural representation at A-A in Fig. 1.
Fig. 3 is a kind of partial structural diagram of the reinforcing member of the embodiment of the present invention 1 in actual application.
Fig. 4 is a kind of structure diagram of the internal support of foundation pit of the embodiment of the present invention 2.
Fig. 5 is a kind of structure diagram of the shaped steel bracket of the embodiment of the present invention 2.
Fig. 6 is a kind of part section structural representation at B-B in Fig. 5.
In figure:
Foundation pit enclosure stake 1a;Enclose cold beam 1b;
Reinforcing member 1, upper securing plate 1.1, side securing plate 1.2, upper reinforcing plate 1.3, lower securing plate 1.4.Lower reinforcing plate 1.5, it is interior to add
Strong plate 1.6;
Shaped steel inner support beam 2;Prestressing force pressing means 3, support member 3.1;
Shaped steel bracket 4, horizontal guide rail 5, supports slide 6, Equipoising support apparatus 7, vertical cylinder body 7.1, balanced support beam 7.2, branch
Support piston body 7.3, piston limit block 7.4, vertical support column 7.5, Balanced interface 7.6, controlled valve 7.7.
Embodiment
The present invention is described in further detail with embodiment below in conjunction with the accompanying drawings:
Embodiment 1:As shown in Figure 1 and Figure 2, a kind of reinforcing member, including upper securing plate 1.1, the lower reinforcing parallel with upper securing plate
The side securing plate 1.2 of plate 1.4 and the upper securing plate of connection and lower securing plate.Upper securing plate is located at the same of side securing plate with lower securing plate
Side, and side securing plate and upper securing plate are perpendicular.Side securing plate is equipped with some bolt connecting holes.Upper securing plate is reinforced with side
It is weldingly connected between plate.It is weldingly connected between lower securing plate and side securing plate.
Upper securing plate is equipped with some bolt connecting holes.The upper surface of upper securing plate is equipped with upper reinforcing plate 1.3, and upper reinforcement
Plate and upper securing plate are perpendicular.
Lower securing plate is equipped with some bolt connecting holes.The lower surface of lower securing plate is equipped with lower reinforcing plate 1.5, and lower reinforcement
Plate and lower securing plate are perpendicular.
Some interior reinforcing plates 1.6 being equally spaced, interior reinforcing plate and upper reinforcing are equipped between upper securing plate and lower securing plate
Plate is perpendicular, and interior reinforcing plate and side securing plate are perpendicular.
As shown in Figure 3, Figure 4, the reinforcing member of the present embodiment is specifically used as follows:
The first end of shaped steel inner support beam 2 is against on the medial surface for enclosing cold beam 1b, and the second end of shaped steel inner support beam passes through reinforcing
Part and prestressing force pressing means are against on the medial surface for enclosing cold beam.
The second end of shaped steel inner support beam is located between the upper securing plate of reinforcing member and lower securing plate, and shaped steel inner support beam
Second end be against on the surface of side securing plate, be bolted between shaped steel inner support beam and upper securing plate, branch in shaped steel
It is bolted between support beam and lower securing plate;The connection so protected between the second end of shaped steel inner support beam and reinforcing member is steady
It is qualitative;
Prestressing force pressing means 3 include can mutually distracted two support members, and a wherein support member is connected to and encloses cold beam
On medial surface, another support member is connected by bolt with the side securing plate of reinforcing member;So ensure reinforcing member and prestressing force
Connective stability between the support member of pressing means;
The second end and prestressing force pressing means of shaped steel inner support beam are connected by reinforcing member, so that prestressing force pressing means be effectively ensured
With the connective stability between shaped steel inner support beam, meeting is upper between avoiding the end of prestressing force pressing means and shaped steel inner support beam
A certain amount of changing of the relative positions occurs upwards for lower section, influences internal support of foundation pit safety and stablization.
Embodiment 2:As shown in figure 4, a kind of internal support of foundation pit, including prestressing force pressing means 3, positioned at the shaped steel enclosed in cold beam
Inner support beam 2, the reinforcing member 1 between prestressing force pressing means and shaped steel inner support beam and it is used to support shaped steel inner support beam
Bracket component.
The first end of shaped steel inner support beam is against on the medial surface for enclosing cold beam 1b.The second end of shaped steel inner support beam is by adding
Firmware 1 and prestressing force pressing means 3 are against on the medial surface for enclosing cold beam.The second end of shaped steel inner support beam is located at the upper of reinforcing member and adds
Between solid plate and lower securing plate, and the second end of shaped steel inner support beam is against on the surface of side securing plate.Shaped steel inner support beam with
It is bolted between upper securing plate, is bolted between shaped steel inner support beam and lower securing plate.
Prestressing force pressing means include can mutually distracted two support members 3.1, and a wherein support member is connected to and encloses
On the medial surface of cold beam, another support member is connected by bolt with the side securing plate of reinforcing member.
Bracket component includes two shaped steel brackets 4 being arranged on foundation pit enclosure stake 1a.The foundation pit enclosure stake of the present embodiment
It is made of shaped steel column.Two shaped steel brackets are located at sustained height, and one of shaped steel bracket is located at the of shaped steel inner support beam
The lower section of one end, another shaped steel bracket are located at the lower section of the second end of shaped steel inner support beam.
As shown in Fig. 4, Fig. 5, Fig. 6, shaped steel bracket includes horizontal guide rail 5 parallel with shaped steel inner support beam, is led along level
The support slide 6 that rail slides and the Equipoising support apparatus 7 being arranged on support slide.
Equipoising support apparatus includes being arranged on the vertical cylinder body 7.1 supported on slide upper surface, is slidably arranged in vertical cylinder
Support piston body 7.3 in vivo, be arranged on the medial surface of vertical cylinder body and positioned at the piston limit block supported below piston body
7.4th, the vertical support column 7.5 that is arranged on support piston body upper surface and be arranged on vertical support column upper end balanced support
Beam 7.2.The lateral surface lower part of vertical cylinder body is simultaneously equipped with Balanced interface 7.6 positioned at the lower section of piston limit block, and Balanced interface is with erecting
The inner cavity of straight-cylinder body is connected.Balanced interface is equipped with controlled valve 7.7.The upper surface of vertical cylinder body is equipped with support column via,
Vertical support column passes through support column via.Balanced support beam is located at the top of vertical cylinder body, and balanced support beam is horizontally disposed with, balance
Supporting beam is perpendicular with horizontal guide rail.
The Balanced interface on vertical cylinder body on two shaped steel brackets is connected by balancing connecting tube, positioned at support piston
Fluid is full of in vertical cylinder body below body and in connecting tube.
Shaped steel inner support beam is supported on the balanced support beam of two shaped steel brackets.The balanced support beam of two shaped steel brackets
Symmetrical centre overlapped with the symmetrical centre of shaped steel inner support beam(I.e. the first end of shaped steel inner support beam and a shaped steel bracket is flat
The spacing between spacing and the second end of shaped steel inner support beam and the balanced support beam of another shaped steel bracket between the supporting beam that weighs
It is identical).
The specific installation steps of the internal support of foundation pit of the present embodiment are as follows:
First, the controlled valve at Balanced interface is opened;
It is supported in due to shaped steel inner support beam on the balanced support beam of two shaped steel brackets, and the vertical cylinder on two shaped steel brackets
Balanced interface on body is connected by balancing connecting tube, so can adjust shaped steel inner support beam using the principle of linker
Location status, after shaped steel inner support beam is stablized, shaped steel inner support beam will be horizontal state;
Second, the controlled valve at Balanced interface is closed, makes shaped steel inner support beam keep being horizontal state, so as to protect
Shaped steel inner support beam is demonstrate,proved with horizontality to supportting between purlin beam, avoids passing through the level of the shaped steel inner support beam of bracket support
Location status can not be guaranteed, the easy run-off the straight of shaped steel inner support beam, reduce support energy of the shaped steel inner support beam to foundation pit
The problem of power and the stability of support.
3rd, the first end of shaped steel inner support beam is promoted toward purlin beam, the first end of shaped steel inner support beam is against and encloses
On the medial surface of cold beam;
Then, reinforcing member is installed in the second end of steel inner support beam, the second end of shaped steel inner support beam stretches into reinforcing member
Between upper securing plate and lower securing plate, and the second end of shaped steel inner support beam is set to be against on the surface of side securing plate;
One support member of prestressing force pressing means is connected by bolt with the side securing plate of reinforcing member;
Followed by, two support members of prestressing force pressing means are strutted by hydraulic jack, then two support members it
Between be inserted into inserted sheet two support members kept into distracted states so that by shaped steel inner support beam to supportting the purlin in opposite sides
Between beam, support to foundation pit is formed with this, ensures the support strength of foundation pit support system.