CN108166528A - Subway station construction method of underground continuous wall in a kind of confined space - Google Patents
Subway station construction method of underground continuous wall in a kind of confined space Download PDFInfo
- Publication number
- CN108166528A CN108166528A CN201711460637.9A CN201711460637A CN108166528A CN 108166528 A CN108166528 A CN 108166528A CN 201711460637 A CN201711460637 A CN 201711460637A CN 108166528 A CN108166528 A CN 108166528A
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- Prior art keywords
- reinforcement cage
- steel reinforcement
- cage
- slot
- decentralization
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/18—Bulkheads or similar walls made solely of concrete in situ
Abstract
The invention discloses subway station construction method of underground continuous wall in a kind of confined space, including step：Step 1: trenching construction：It is constructed using groover to the slot of constructed diaphram wall；Step 2: reinforcing bar cage hoisting decentralization channel determines：The length of accessible slot section measures respectively in length and slot to slot, and reinforcing bar cage hoisting decentralization channel is determined according to measurement result；Step 3: steel reinforcement cage presses Division and binding；Step 4: translation installation steel reinforcement cage installation；Step 5: decentralization installation steel reinforcement cage installation；Step 6: underwater concrete construction.The predetermined reinforcing bar cage hoisting decentralization channel of the present invention, and by carrying out wall steel bar basket structure by Division and binding respectively, corresponding installation method is used to the different steel reinforcement cages for pressing Division simultaneously, the diaphram wall wall steel reinforcement cage installation process that energy is easy, is rapidly completed in the confined space, work progress are safe and reliable.
Description
Technical field
The invention belongs to underground continuous wall construction technique field, more particularly, to subway station in a kind of confined space
Construction method of underground continuous wall.
Background technology
Diaphram wall is that foundation engineering uses a kind of trench machine on the ground, along all side axis of deep excavation project
Line under the conditions of mud off, excavates out a long and narrow deep trouth, after clear slot, steel reinforcement cage is hung in slot, then uses tremie method
Underwater concreting with tremie method builds up a unit groove section, so carries out paragraph by paragraph, and continuous reinforced concrete wall together is built up in underground
Wall, as intercept water, antiseepage, load-bearing, water-retaining structure.Subway is a kind of form of railway transportation, refers to the city based on being run in underground
City's Rail Transit System, i.e. " underground railway " or " subway ".
Since bustling location of the subway station usually in urban district is built, thus subway station diaphram wall is applied
In working hour, not only avoiding can be by the existing building of residing construction area and/or influencing for existing buildings, wherein existing building
Object is referred to as barrier with existing buildings.Under the prior art and process conditions, deposited in construction area residing for diaphram wall
The barriers such as existing bridge, building, overhead high-voltage wire the confined space (specifically referring to barrier) in, because by safety away from
From limitation, the lifting of diaphram wall steel reinforcement cage, installation difficulty are very big, particularly when confined space height is less than lifting
When mechanical height, directly resulting in can not construct.Thus, it need to design in the case of a kind of not removal of the obstacles in a limited space
Diaphragm wall steel reinforcement cage is lifted by crane, is installed, and construction of diaphragm wall process in the easy completion confined space.
Invention content
In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is that provide a kind of confined space
Interior subway station construction method of underground continuous wall predefines reinforcing bar cage hoisting decentralization channel, and by wall steel bar cage knot
Structure is carried out by Division and is bound respectively, while to pressing the different steel reinforcement cages of Division using corresponding installation method, energy
Diaphram wall wall steel reinforcement cage installation process easy, being rapidly completed in the confined space, work progress are safe and reliable.
In order to solve the above technical problems, the technical solution adopted by the present invention is：Subway station underground in a kind of confined space
Continuous wall construction method, which is characterized in that this method includes the following steps：
Step 1: trenching construction：It is constructed using groover to the slot of constructed diaphram wall；
It is vertically linear type to laying and its cross section that institute's construction diaphram wall, which is in, is set in institute's construction diaphram wall
Steel reinforcement cage be cube shaped wall steel bar cage；The slot be divided into intermediate channel section along its length and two be connected to it is described
The side slots section of intermediate channel section both sides；The intermediate channel section is has obstacle slot section below barrier；
The slot has obstacle slot or bilateral to have obstacle slot for unilateral side；The unilateral side has in obstacle slot described in one
For side slots section to there is obstacle slot section described in below barrier, another described side slots section is accessible slot section；It is described
It is accessible slot section that bilateral, which has two side slots sections in obstacle slot,；
The vertical height H of wall steel bar cage described in vertical spacing h ＜ at the top of the slot between barrier bottom；
Step 2: reinforcing bar cage hoisting decentralization channel determines：Institute in length L and the slot to slot described in step 1
The length for stating accessible slot section measures respectively, and reinforcing bar cage hoisting decentralization channel is determined according to measurement result；Institute
It is translation mounting groove section to state the slot section in slot in addition to the reinforcing bar cage hoisting transfers channel；
When slot has obstacle slot for unilateral side, channel is transferred using the accessible slot section as the reinforcing bar cage hoisting,
The reinforcing bar cage hoisting decentralization number of channels is one at this time；
When slot has obstacle slot for bilateral, when two accessible slot Duan Jun are not less than L1 or two no barrier
When hindering the length of slot section identical, channel is transferred using two accessible slot Duan Jun as the reinforcing bar cage hoisting, it is described at this time
Reinforcing bar cage hoisting decentralization number of channels is two；Otherwise, the length of accessible slot section described to two compares, by two institutes
It states the accessible slot section that length is big in accessible slot section and transfers channel as the reinforcing bar cage hoisting, at this time the steel
Muscle cage lifting decentralization number of channels is one；Wherein, L1=0.2L~0.3L；
When reinforcing bar cage hoisting decentralization number of channels is one, the length of the reinforcing bar cage hoisting decentralization channel is denoted as
L0；When reinforcing bar cage hoisting decentralization number of channels is different for the length that reinforcing bar cage hoisting decentralization channel is stated described in two and two
When, the length of two reinforcing bar cage hoisting decentralization channels is denoted as L respectively1And L2, wherein L1＞ L2；When the reinforcing bar cage hoisting
Decentralization number of channels for state described in two and two reinforcing bar cage hoisting transfer channel length it is identical when, under the reinforcing bar cage hoisting
The length for putting channel is denoted as L3；
Step 3: steel reinforcement cage presses Division and binding：According to cloth of the wall steel bar cage being pre-designed in slot
If position, and identified reinforcing bar cage hoisting decentralization channel in step 2 is combined, the cube steel reinforcement cage is divided into positioned at institute
It states the decentralization installation steel reinforcement cage in reinforcing bar cage hoisting decentralization channel and reinforcing bar is installed in the translation in the translation mounting groove section
Cage；The quantity for translating installation steel reinforcement cage is one, under the quantity and the reinforcing bar cage hoisting of the decentralization installation steel reinforcement cage
The quantity for putting channel is identical；
Meanwhile the vertical spacing h between at the top of the slot and barrier bottom and the wall steel bar cage is vertical
Height H is compared, and the structure of the translation installation steel reinforcement cage is determined according to comparing result：It is described as h ＜ h0
The longitudinal spliced formula steel reinforcement cage that translation installation steel reinforcement cage is spliced by multiple vertical reinforcement cages laid from front to back, Duo Gesuo
The height for stating vertical reinforcement cage is H, wherein h0=0.3H~0.4H；Otherwise, it is described translation installation steel reinforcement cage be by it is multiple from
Under supreme laying the vertical spliced steel reinforcement cage that is spliced of steel reinforcement cage segment, the height of each steel reinforcement cage segment is not
It is identical with the length of the translation installation steel reinforcement cage more than h and its length；
When the quantity of reinforcing bar cage hoisting decentralization channel is one, each vertical steel in the longitudinal spliced formula steel reinforcement cage
The length of muscle cage is no more than L0；When the quantity of reinforcing bar cage hoisting decentralization channel is hung to state steel reinforcement cage described in two and two
When loading the length difference for putting channel, the length of each vertical reinforcement cage is no more than L in the longitudinal spliced formula steel reinforcement cage2；When
The quantity of reinforcing bar cage hoisting decentralization channel for stated described in two and two reinforcing bar cage hoisting transfer channel length it is identical when,
The length of each vertical reinforcement cage is no more than L in the longitudinal spliced formula steel reinforcement cage3；
Steel reinforcement cage, the vertical reinforcement cage are installed in the decentralization and the steel reinforcement cage segment is cube shaped and three
Width is of same size with the wall steel bar cage；
When being bound to the wall steel bar cage, the decentralization installation steel reinforcement cage and the translation of splicing composition are installed
All vertical reinforcement cages of steel reinforcement cage or all steel reinforcement cage segments are bound respectively；
Step 4: translation installation steel reinforcement cage installation：The translation installation steel reinforcement cage is installed；
When the translation installation steel reinforcement cage is longitudinal spliced formula steel reinforcement cage, the longitudinal spliced formula reinforcing bar is formed to splicing
Multiple vertical reinforcement cages of cage are installed one by one；The installation method all same of multiple vertical reinforcement cages, passes through
The reinforcing bar cage hoisting decentralization channel is installed；When reinforcing bar cage hoisting decentralization number of channels is one, pass through the steel
Muscle cage lifting decentralization channel installs multiple vertical reinforcement cages one by one；When the reinforcing bar cage hoisting transfers number of channels
When being two, transfer Channel Synchronous by two reinforcing bar cage hoistings and multiple vertical reinforcement cages are installed respectively；
By the reinforcing bar cage hoisting transfer channel to vertical reinforcement cage is installed any one described when, process is as follows：
Step A1, lifting and decentralization：The vertical reinforcement cage is from top to bottom lifted using hanging device and is transferred to institute
It states in reinforcing bar cage hoisting decentralization channel, and passes through Compact Mounts and the vertical reinforcement cage is limited, make described vertical
The top segment of steel reinforcement cage is located to slot；
The Compact Mounts are laid in the limiting that can be moved forward and backward on the aperture of slot and along the aperture of slot
Device, the Compact Mounts are installed in the top segment of the vertical reinforcement cage；
Step A2, it translates：Vertical reinforcement cage described in step A1 is translated using the folding arm loop wheel machine below barrier
In place；
Step A3, it transfers in place：Compact Mounts described in removal step A1, and the vertical reinforcement cage is transferred to
Position；
It, will be multiple after multiple vertical reinforcement cages are respectively mounted in place according to the method described in step A1 to step A3
The vertical reinforcement cage, which is fastenedly connected, to be integrated, and obtains the assembled longitudinal spliced formula steel reinforcement cage；Again by each vertical reinforcement
The Compact Mounts installed on cage are removed, then are transferred to the longitudinal spliced formula steel reinforcement cage using folding arm loop wheel machine
The installation process of the translation installation steel reinforcement cage is completed in position；
When the translation installation steel reinforcement cage is vertical spliced steel reinforcement cage, from the bottom to top to the vertical spliced reinforcing bar
Multiple steel reinforcement cage segments of cage are installed respectively, and process is as follows：
Step B1, bottom segment lifting and decentralization：It will be hung using folding arm loop wheel machine positioned at the steel reinforcement cage segment of bottommost
Fill and transfer to it is described translation mounting groove section in, while by Compact Mounts described in step A1 to the steel reinforcement cage segment into
Row limiting makes the top segment of the steel reinforcement cage segment be located to slot；At this point, the Compact Mounts are installed on the steel
In the top segment of muscle cage segment；
Step B2, a upper steel reinforcement cage segment lifting continues and transfers：Using folding arm loop wheel machine by upper one institute to be installed
It states steel reinforcement cage segment from top to bottom to lift to the currently mounted steel reinforcement cage segment, and described in currently being lifted
Steel reinforcement cage segment is fastenedly connected with the steel reinforcement cage segment being disposed below, then to described in being connect under being located on steel reinforcement cage segment
Compact Mounts are removed；Later, using folding arm loop wheel machine by the steel reinforcement cage segment currently lifted and under it
All steel reinforcement cage segments of side, which synchronize, is transferred, while by the Compact Mounts to currently lifting steel reinforcement cage segment
It is limited, the top segment of the steel reinforcement cage segment is made to be located to slot；At this point, the Compact Mounts are installed on this
In the top segment of steel reinforcement cage segment；
Steel reinforcement cage segment is connect under described to be lifted below the steel reinforcement cage segment positioned at current and being lifted institute with current
State the adjacent steel reinforcement cage segment in steel reinforcement cage segment；
Step B3, it is one or many to repeat step B2, until completing to be located at top in the vertical spliced steel reinforcement cage
The steel reinforcement cage segment lifting, continue and decentralization process, obtain the assembled vertical spliced steel reinforcement cage；
Step B4, it transfers in place：To the Compact Mounts on spliced steel reinforcement cage vertical described in step B3 into
Row is removed, and by the vertical spliced steel reinforcement cage decentralization in place, completes the installation process of the translation installation steel reinforcement cage；
Step 5: decentralization installation steel reinforcement cage installation：Using hanging device described in step A1, reinforcing bar is installed into the decentralization
Cage is lifted and is transferred to residing reinforcing bar cage hoisting decentralization channel；Treat the decentralization installation in the wall steel bar cage
After steel reinforcement cage is transferred in place, steel reinforcement cage is installed into the translation that steel reinforcement cage is installed in the decentralization with installation is complete in step 4
It is fastenedly connected and is integrated, obtain the wall steel bar cage that installation is complete；
Step 6: underwater concrete construction：Underwater concrete construction is carried out to constructed diaphram wall, is obtained
Obtain the diaphram wall of construction molding.
Subway station construction method of underground continuous wall in a kind of above-mentioned confined space, it is characterized in that：Each institute in step 3
The height of steel reinforcement cage segment is stated no more than h1；Wherein, h1=0.4h~0.7h.
Subway station construction method of underground continuous wall in a kind of above-mentioned confined space, it is characterized in that：It is hung described in step A1
Standby installing is crawler crane.
Subway station construction method of underground continuous wall in a kind of above-mentioned confined space, it is characterized in that：Water described in step A1
Flat limiting device includes the more cross spacing beams being laid in same level, the cross spacing beam and the perpendicular cloth of slot
If；
The length of the cross spacing beam is more than the width of slot, and the every cross spacing beam is inserted into the top
In segment, the every cross spacing beam is respectively positioned on above slot and its both ends is respectively supported on the soil body of slot both sides.
Subway station construction method of underground continuous wall in a kind of above-mentioned confined space, it is characterized in that：The Horizontal limiting dress
The quantity for putting middle cross spacing beam is two.
Subway station construction method of underground continuous wall in a kind of above-mentioned confined space, it is characterized in that：Step A1, step B1 and
The height of top segment described in step B2 is 20cm~50cm.
Subway station construction method of underground continuous wall in a kind of above-mentioned confined space, it is characterized in that：Step A1 and step B2
Described in folding arm loop wheel machine be respectively positioned on the soil body of slot side.
Subway station construction method of underground continuous wall in a kind of above-mentioned confined space, it is characterized in that：Wall described in step 1
The length of body steel reinforcement cage is not less than 20m, and the height of the wall steel bar cage is more than 5m.
Subway station construction method of underground continuous wall in a kind of above-mentioned confined space, it is characterized in that：Slot described in step 1
Vertical spacing h at the top of hole between barrier bottom is more than the height of folding arm loop wheel machine.
Compared with the prior art, the present invention has the following advantages：
1st, construction method step reasonable design, easy to operate and realization are convenient.
2nd, slot divides reasonable, according to whether below barrier, by the slot section of slot be divided into obstacle slot section and
Accessible slot section two types, and mutually should determine that and hung convenient for reinforcing bar cage hoisting and decentralization and the safe and reliable steel reinforcement cage of work progress
It loads and puts channel.
3rd, according to residing slot section, wall steel bar cage is carried out by Division；And combine slot top and barrier bottom
Between vertical spacing h and wall steel bar cage vertical height H between comparing result, to translation installation steel reinforcement cage structure into
Row realizes the construction that becomes more meticulous, steel reinforcement cage is reasonable by Division, and to being carried out respectively by each steel reinforcement cage after Division by Division
Binding molding.
4th, easy construction and work progress is safe and reliable, using effect is good, for by being located at slot difference position after Division
The steel reinforcement cage at place is put, takes corresponding different installation methods, construction operability is strong, and mechanical equipment can need to select according to scene
It selects, combine, convenient for organizing and implementing；It is safe controlled on existing construction of structures or pipeline almost without influence；Avoid construction of structures
And the dismounting of the construction of structures of the influences such as overhead line construction, construction cost is greatly saved；It is applicable in the ground under most limited heights
Lower construction of diaphragm wall, there is larger promotional value.Steel reinforcement cage is installed for installation difficulty big translation, zoning is pressed using different
Divide method, and coordinate corresponding shifting method (i.e. for the installation method of longitudinal spliced formula steel reinforcement cage) and segmented lift-on/lift-off system (i.e.
For the installation method of vertical spliced steel reinforcement cage) the mode obstacle avoidance that is combined, it is real in the case of the not removal of the obstacles
Diaphragm wall reinforcement cage hoisting, installation under the existing confined space.And it transfers installation steel reinforcement cage and passes through reinforcing bar cage hoisting with vertical reinforcement cage
Decentralization channel is integrally lifted and is transferred, and work progress is easy, and construction safety is reliable.
In conclusion the predetermined reinforcing bar cage hoisting decentralization channel of the present invention, and by being carried out to wall steel bar basket structure
It is bound by Division and respectively, while corresponding installation method is used to the different steel reinforcement cages for pressing Division, it can be easy, fast
Speed completes the diaphram wall wall steel reinforcement cage installation process in the confined space, and work progress is safe and reliable.
Below by drawings and examples, technical scheme of the present invention is described in further detail.
Description of the drawings
Fig. 1 is the method flow block diagram of the present invention.
Fig. 2 is the lifting status diagram that steel reinforcement cage and vertical reinforcement cage are installed in present invention decentralization.
Fig. 3 is the Construction State schematic diagram after vertical reinforcement cage of the present invention translates in place.
Fig. 4 is the Construction State schematic diagram after vertical reinforcement cage of the present invention is transferred in place.
Fig. 5 is the wiring state schematic diagram of the upper section steel reinforcement cage segment of the present invention.
Fig. 6 is structure diagram of the wall steel bar cage of the present invention after installation is complete.
Reference sign:
1-slot；2-barrier；3-folding arm loop wheel machine；
4-cross spacing beam；5-crawler crane hanging apparatus；6-folding arm crane hanging apparatus；
7-monolithic reinforced cage；8-sectional type steel reinforcement cage.
Specific embodiment
Subway station construction method of underground continuous wall in a kind of confined space as shown in Figure 1, includes the following steps：
Step 1: trenching construction：It is constructed using groover to the slot 1 of constructed diaphram wall；
It is vertically linear type to laying and its cross section that institute's construction diaphram wall, which is in, is set in institute's construction diaphram wall
Steel reinforcement cage be cube shaped wall steel bar cage；The slot 1 is divided into intermediate channel section along its length and two are connected to institute
State the side slots section of intermediate channel section both sides；The intermediate channel section is to have obstacle slot section positioned at 2 lower section of barrier；
The slot 1 has obstacle slot or bilateral to have obstacle slot for unilateral side；There is an institute in obstacle slot in the unilateral side
It is to have obstacle slot section positioned at described in 2 lower section of barrier to state side slots section, another described side slots section is accessible slot section；Institute
It is accessible slot section to state bilateral to have two side slots sections in obstacle slot；
The vertical height H of wall steel bar cage described in vertical spacing h ＜ between 1 top of slot and 2 bottom of barrier；
Step 2: reinforcing bar cage hoisting decentralization channel determines：To in the length L and the slot 1 of slot 1 described in step 1
The length of the accessible slot section measures respectively, and reinforcing bar cage hoisting decentralization channel is determined according to measurement result；
Slot section in the slot 1 in addition to the reinforcing bar cage hoisting transfers channel is translation mounting groove section；
When slot 1 has obstacle slot for unilateral side, channel is transferred using the accessible slot section as the reinforcing bar cage hoisting,
The reinforcing bar cage hoisting decentralization number of channels is one at this time；
When slot 1 has obstacle slot for bilateral, when two accessible slot Duan Jun are not less than L1 or two nothing
When the length of obstacle slot section is identical, channel is transferred using two accessible slot Duan Jun as the reinforcing bar cage hoisting, at this time institute
It is two to state reinforcing bar cage hoisting decentralization number of channels；Otherwise, the length of accessible slot section described to two compares, by two
A big accessible slot section of length transfers channel as the reinforcing bar cage hoisting in the accessible slot section, described at this time
Reinforcing bar cage hoisting decentralization number of channels is one；Wherein, L1=0.2L~0.3L；
When reinforcing bar cage hoisting decentralization number of channels is one, the length of the reinforcing bar cage hoisting decentralization channel is denoted as
L0；When reinforcing bar cage hoisting decentralization number of channels is different for the length that reinforcing bar cage hoisting decentralization channel is stated described in two and two
When, the length of two reinforcing bar cage hoisting decentralization channels is denoted as L respectively1And L2, wherein L1＞ L2；When the reinforcing bar cage hoisting
Decentralization number of channels for state described in two and two reinforcing bar cage hoisting transfer channel length it is identical when, under the reinforcing bar cage hoisting
The length for putting channel is denoted as L3；
Step 3: steel reinforcement cage presses Division and binding：According to cloth of the wall steel bar cage being pre-designed in slot 1
If position, and identified reinforcing bar cage hoisting decentralization channel in step 2 is combined, the cube steel reinforcement cage is divided into positioned at institute
It states the decentralization installation steel reinforcement cage in reinforcing bar cage hoisting decentralization channel and reinforcing bar is installed in the translation in the translation mounting groove section
Cage；The quantity for translating installation steel reinforcement cage is one, under the quantity and the reinforcing bar cage hoisting of the decentralization installation steel reinforcement cage
The quantity for putting channel is identical；
Meanwhile the vertical spacing h between 1 top of the slot and 2 bottom of barrier and the wall steel bar cage is perpendicular
It is compared to height H, and the structure of the translation installation steel reinforcement cage is determined according to comparing result：As h ＜ h0, institute
The longitudinal spliced formula steel reinforcement cage that translation installation steel reinforcement cage is spliced by multiple vertical reinforcement cages laid from front to back is stated, it is multiple
The height of the vertical reinforcement cage is H, wherein h0=0.3H~0.4H；Otherwise, the translation installation steel reinforcement cage is by multiple
The vertical spliced steel reinforcement cage that the steel reinforcement cage segment laid from bottom to up is spliced, the height of each steel reinforcement cage segment are equal
It is identical with the length of the translation installation steel reinforcement cage no more than h and its length；
When the quantity of reinforcing bar cage hoisting decentralization channel is one, each vertical steel in the longitudinal spliced formula steel reinforcement cage
The length of muscle cage is no more than L0；When the quantity of reinforcing bar cage hoisting decentralization channel is hung to state steel reinforcement cage described in two and two
When loading the length difference for putting channel, the length of each vertical reinforcement cage is no more than L in the longitudinal spliced formula steel reinforcement cage2；When
The quantity of reinforcing bar cage hoisting decentralization channel for stated described in two and two reinforcing bar cage hoisting transfer channel length it is identical when,
The length of each vertical reinforcement cage is no more than L in the longitudinal spliced formula steel reinforcement cage3；
Steel reinforcement cage, the vertical reinforcement cage are installed in the decentralization and the steel reinforcement cage segment is cube shaped and three
Width is of same size with the wall steel bar cage；
When being bound to the wall steel bar cage, the decentralization installation steel reinforcement cage and the translation of splicing composition are installed
All vertical reinforcement cages of steel reinforcement cage or all steel reinforcement cage segments are bound respectively；
Step 4: translation installation steel reinforcement cage installation：The translation installation steel reinforcement cage is installed；
When the translation installation steel reinforcement cage is longitudinal spliced formula steel reinforcement cage, the longitudinal spliced formula reinforcing bar is formed to splicing
Multiple vertical reinforcement cages of cage are installed one by one；The installation method all same of multiple vertical reinforcement cages, passes through
The reinforcing bar cage hoisting decentralization channel is installed；When reinforcing bar cage hoisting decentralization number of channels is one, pass through the steel
Muscle cage lifting decentralization channel installs multiple vertical reinforcement cages one by one；When the reinforcing bar cage hoisting transfers number of channels
When being two, transfer Channel Synchronous by two reinforcing bar cage hoistings and multiple vertical reinforcement cages are installed respectively；
It is shown as shown in Figure 2, Figure 3 and Figure 4, by the reinforcing bar cage hoisting transfer channel to vertical reinforcement cage any one described into
During row installation, process is as follows：
Step A1, lifting and decentralization：The vertical reinforcement cage is from top to bottom lifted using hanging device and is transferred to institute
It states in reinforcing bar cage hoisting decentralization channel, and passes through Compact Mounts and the vertical reinforcement cage is limited, make described vertical
The top segment of steel reinforcement cage is located to 1 outside of slot；
The Compact Mounts are laid in the limit that can be moved forward and backward on the aperture of slot 1 and along the aperture of slot 1
Position device, the Compact Mounts are installed in the top segment of the vertical reinforcement cage；
Step A2, it translates：Vertical reinforcement cage described in step A1 is put down using the folding arm loop wheel machine 3 positioned at 2 lower section of barrier
Move on to position；
Step A3, it transfers in place：Compact Mounts described in removal step A1, and the vertical reinforcement cage is transferred to
Position；
It, will be multiple after multiple vertical reinforcement cages are respectively mounted in place according to the method described in step A1 to step A3
The vertical reinforcement cage, which is fastenedly connected, to be integrated, and obtains the assembled longitudinal spliced formula steel reinforcement cage；Again by each vertical reinforcement
The Compact Mounts installed on cage are removed, then are transferred the longitudinal spliced formula steel reinforcement cage using folding arm loop wheel machine 3
In place, the installation process of the translation installation steel reinforcement cage is completed；
When the translation installation steel reinforcement cage is vertical spliced steel reinforcement cage, from the bottom to top to the vertical spliced reinforcing bar
Multiple steel reinforcement cage segments of cage are installed respectively, and process is as follows：
Step B1, bottom segment lifting and decentralization：It will be hung using folding arm loop wheel machine 3 positioned at the steel reinforcement cage segment of bottommost
Fill and transfer to it is described translation mounting groove section in, while by Compact Mounts described in step A1 to the steel reinforcement cage segment into
Row limiting makes the top segment of the steel reinforcement cage segment be located to 1 outside of slot, refers to Fig. 5；At this point, the Compact Mounts
It is installed in the top segment of the steel reinforcement cage segment；
Step B2, a upper steel reinforcement cage segment lifting continues and transfers：It is to be installed by upper one using folding arm loop wheel machine 3
The steel reinforcement cage segment is from top to bottom lifted to the currently mounted steel reinforcement cage segment, and the institute that will be currently lifted
Steel reinforcement cage segment is stated to be fastenedly connected with the steel reinforcement cage segment being disposed below, then to meeting the institute on steel reinforcement cage segment under being located at
It states Compact Mounts to be removed, refers to Fig. 5；Later, the steel reinforcement cage segment that will currently be lifted using folding arm loop wheel machine 3
With all steel reinforcement cage segments for being disposed below synchronize transferred, while by the Compact Mounts to currently being lifted
Steel reinforcement cage segment is limited, and the top segment of the steel reinforcement cage segment is made to be located to 1 outside of slot；At this point, the Horizontal limiting
Device is installed in the top segment of the steel reinforcement cage segment；
Steel reinforcement cage segment is connect under described to be lifted below the steel reinforcement cage segment positioned at current and being lifted institute with current
State the adjacent steel reinforcement cage segment in steel reinforcement cage segment；
Step B3, it is one or many to repeat step B2, until completing to be located at top in the vertical spliced steel reinforcement cage
The steel reinforcement cage segment lifting, continue and decentralization process, obtain the assembled vertical spliced steel reinforcement cage；
Step B4, it transfers in place：To the Compact Mounts on spliced steel reinforcement cage vertical described in step B3 into
Row is removed, and by the vertical spliced steel reinforcement cage decentralization in place, completes the installation process of the translation installation steel reinforcement cage；
Step 5: decentralization installation steel reinforcement cage installation：Using hanging device described in step A1, reinforcing bar is installed into the decentralization
Cage is lifted and is transferred to residing reinforcing bar cage hoisting decentralization channel, refers to Fig. 2；It treats described in the wall steel bar cage
After decentralization installation steel reinforcement cage is transferred in place, the translation that steel reinforcement cage is installed in the decentralization with installation is complete in step 4 is pacified
Dress steel reinforcement cage, which is fastenedly connected, to be integrated, and obtains the wall steel bar cage that installation is complete；
Step 6: underwater concrete construction：Underwater concrete construction is carried out to constructed diaphram wall, is obtained
Obtain the diaphram wall of construction molding.
In the present embodiment, the slot 1 has obstacle slot for unilateral side.
Wherein, the decentralization installation steel reinforcement cage and vertical reinforcement cage are once to bind molding monolithic reinforced cage 7, institute
Steel reinforcement cage segment is stated as sectional type steel reinforcement cage 8.
In the present embodiment, between the two neighboring vertical reinforcement cage and steel reinforcement cage and the translation are installed in the decentralization
It is attached between installation steel reinforcement cage using groove joint, between neighbouring two steel reinforcement cage segments using machinery even
It connects or welding manner is attached.
In the present embodiment, the height of each steel reinforcement cage segment is no more than h1 in step 3；Wherein, h1=0.4h~
0.7h。
Wherein, the L1 described in the step 2 and h0 described in step 3 and h1 is the judgment threshold being pre-designed,
Middle L1 be 0.2L~0.3L in the range of any one numerical value, h0 be 0.3H~0.4H in the range of any one numerical value, h1 0.4h
Any one numerical value in the range of~0.7h.
It during practice of construction, can specifically need, the value size of L1, h0 and h1 are adjusted accordingly.
Region residing for the barrier 2 is prohibited security zone.Thus, the wall steel bar cage is lifted and transferred and is applied
During work, the prohibited security zone should all be avoided.Thus, just it is to have above slot 1 and there are the construction area of barrier 2
Limit space.
In the present embodiment, hanging device described in step A1 is crawler crane.
During practice of construction, the decentralization to be lifted installation steel reinforcement cage or the vertical reinforcement cage are hung in the crawler belt
5 lower section of crawler crane hanging apparatus hung.The crawler crane hanging apparatus 5 includes suspension hook and the lifting being lifted below the suspension hook
Shoulder pole girder.
Correspondingly, the steel reinforcement cage segment hanging is below the folding arm crane hanging apparatus 6 of the folding arm loop wheel machine 3.The folding
Arm hangs hanging apparatus 6 and also includes suspension hook and the lifting shoulder pole girder being lifted below the suspension hook.The folding arm loop wheel machine 3 is also referred to as rolled over
Boom crane.
In the present embodiment, Compact Mounts described in step A1 include the more lateral limits being laid in same level
Position beam 4, the cross spacing beam 4 and 1 perpendicular laying of slot；
The length of the cross spacing beam 4 is more than the width of slot 1, and the every cross spacing beam 4 is inserted into described
In top segment, the every cross spacing beam 4 is respectively positioned on 1 top of slot and its both ends and is respectively supported at the soil of 1 both sides of slot
On body.
In actual use, the Compact Mounts are formed using more cross spacing beams 4, economical and practical, simple installation,
And good limit effect.
In the present embodiment, the quantity of cross spacing beam 4 is two in the Compact Mounts, can be right according to specific needs
The quantity of cross spacing beam 4 adjusts accordingly in the Compact Mounts.
In the present embodiment, step A1, the height of top segment described in step B1 and step B2 is 20cm~50cm.
During practice of construction, folding arm loop wheel machine 3 is respectively positioned on the soil body of 1 side of slot described in step A1 and step B2.
Also, the vertical spacing h at the top of slot 1 described in step 1 between 2 bottom of barrier is more than folding arm loop wheel machine 3
Highly.
In the present embodiment, the length of wall steel bar cage described in step 1 is not less than 20m, the height of the wall steel bar cage
More than 5m.
In the present embodiment, the translation installation steel reinforcement cage is the longitudinal spliced formula steel reinforcement cage and it is described vertical by two
Steel reinforcement cage is formed by connecting.The wall steel bar cage that installation is complete refers to Fig. 6.
In Fig. 6, the right side groove section of the slot 1 is accessible slot section, and the left side groove section of the slot 1 is has obstacle slot
Section, the right side groove Duan Weiwei reinforcing bar cage hoistings decentralization channel of the slot 1 and the steel reinforcement cage filled in it are decentralization installation reinforcing bar
Cage.The steel reinforcement cage filled in the left side groove section of the slot 1 installs steel reinforcement cage for the translation.
The above is only presently preferred embodiments of the present invention, not the present invention is imposed any restrictions, every according to the present invention
Any simple modification, change and the equivalent structure that technical spirit makees above example change, and still fall within skill of the present invention
In the protection domain of art scheme.
Claims (9)
1. subway station construction method of underground continuous wall in a kind of confined space, which is characterized in that this method includes the following steps：
Step 1: trenching construction：It is constructed using groover to the slot (1) of constructed diaphram wall；
Institute's construction diaphram wall is in vertically to laying and its cross section is linear type, the steel set in institute's construction diaphram wall
Muscle cage is cube shaped wall steel bar cage；The slot (1) be divided into intermediate channel section along its length and two be connected to it is described
The side slots section of intermediate channel section both sides；The intermediate channel section is has obstacle slot section below barrier (2)；
The slot (1) has obstacle slot or bilateral to have obstacle slot for unilateral side；The unilateral side has in obstacle slot described in one
Side slots section has obstacle slot section for described below barrier (2), another described side slots section is accessible slot section；Institute
It is accessible slot section to state bilateral to have two side slots sections in obstacle slot；
The vertical height H of wall steel bar cage described in vertical spacing h ＜ at the top of the slot (1) between barrier (2) bottom；
Step 2: reinforcing bar cage hoisting decentralization channel determines：In length L and the slot (1) to slot described in step 1 (1)
The length of the accessible slot section measures respectively, and reinforcing bar cage hoisting decentralization channel is determined according to measurement result；
Slot section in the slot (1) in addition to the reinforcing bar cage hoisting transfers channel is translation mounting groove section；
When slot (1) has obstacle slot for unilateral side, channel is transferred using the accessible slot section as the reinforcing bar cage hoisting, this
Shi Suoshu reinforcing bar cage hoistings decentralization number of channels is one；
When slot (1) has obstacle slot for bilateral, when two accessible slot Duan Jun are not less than L1 or two no barrier
When hindering the length of slot section identical, channel is transferred using two accessible slot Duan Jun as the reinforcing bar cage hoisting, it is described at this time
Reinforcing bar cage hoisting decentralization number of channels is two；Otherwise, the length of accessible slot section described to two compares, by two institutes
It states the accessible slot section that length is big in accessible slot section and transfers channel as the reinforcing bar cage hoisting, at this time the steel
Muscle cage lifting decentralization number of channels is one；Wherein, L1=0.2L~0.3L；
When reinforcing bar cage hoisting decentralization number of channels is one, the length of the reinforcing bar cage hoisting decentralization channel is denoted as L0；When
When the reinforcing bar cage hoisting decentralization number of channels transfers the length difference of channel to state reinforcing bar cage hoisting described in two and two, two
The length of a reinforcing bar cage hoisting decentralization channel is denoted as L respectively1And L2, wherein L1＞ L2；When reinforcing bar cage hoisting decentralization is logical
Road quantity for state described in two and two reinforcing bar cage hoisting transfer channel length it is identical when, the reinforcing bar cage hoisting transfers channel
Length be denoted as L3；
Step 3: steel reinforcement cage presses Division and binding：According to laying of the wall steel bar cage being pre-designed in slot (1)
Position, and identified reinforcing bar cage hoisting decentralization channel in step 2 is combined, the cube steel reinforcement cage is divided into positioned at described
Steel reinforcement cage is installed in decentralization installation steel reinforcement cage in reinforcing bar cage hoisting decentralization channel and the translation in the translation mounting groove section；
The quantity of the translation installation steel reinforcement cage is one, and the quantity of the decentralization installation steel reinforcement cage and reinforcing bar cage hoisting decentralization are logical
The quantity in road is identical；
Meanwhile to being erected with the vertical spacing h between barrier (2) bottom and the wall steel bar cage at the top of the slot (1)
It is compared to height H, and the structure of the translation installation steel reinforcement cage is determined according to comparing result：As h ＜ h0, institute
The longitudinal spliced formula steel reinforcement cage that translation installation steel reinforcement cage is spliced by multiple vertical reinforcement cages laid from front to back is stated, it is multiple
The height of the vertical reinforcement cage is H, wherein h0=0.3H~0.4H；Otherwise, the translation installation steel reinforcement cage is by multiple
The vertical spliced steel reinforcement cage that the steel reinforcement cage segment laid from bottom to up is spliced, the height of each steel reinforcement cage segment are equal
It is identical with the length of the translation installation steel reinforcement cage no more than h and its length；
When the quantity of reinforcing bar cage hoisting decentralization channel is one, each vertical reinforcement cage in the longitudinal spliced formula steel reinforcement cage
Length no more than L0；When the quantity of reinforcing bar cage hoisting decentralization channel is states under reinforcing bar cage hoisting described in two and two
When putting the length difference of channel, the length of each vertical reinforcement cage is no more than L in the longitudinal spliced formula steel reinforcement cage2；When described
The quantity of reinforcing bar cage hoisting decentralization channel for state described in two and two reinforcing bar cage hoisting transfer channel length it is identical when, it is described
The length of each vertical reinforcement cage is no more than L in longitudinal spliced formula steel reinforcement cage3；
The decentralization installation steel reinforcement cage, the vertical reinforcement cage and the steel reinforcement cage segment are cube shaped and three width
It is of same size with the wall steel bar cage；
When being bound to the wall steel bar cage, to the decentralization installation steel reinforcement cage and the splicing composition translation installation reinforcing bar
All vertical reinforcement cages of cage or all steel reinforcement cage segments are bound respectively；
Step 4: translation installation steel reinforcement cage installation：The translation installation steel reinforcement cage is installed；
When the translation installation steel reinforcement cage is longitudinal spliced formula steel reinforcement cage, the longitudinal spliced formula steel reinforcement cage is formed to splicing
Multiple vertical reinforcement cages are installed one by one；The installation method all same of multiple vertical reinforcement cages, by described
Reinforcing bar cage hoisting decentralization channel is installed；When reinforcing bar cage hoisting decentralization number of channels is one, pass through the steel reinforcement cage
Lifting decentralization channel installs multiple vertical reinforcement cages one by one；When reinforcing bar cage hoisting decentralization number of channels is two
When a, transfer Channel Synchronous by two reinforcing bar cage hoistings and multiple vertical reinforcement cages are installed respectively；
By the reinforcing bar cage hoisting transfer channel to vertical reinforcement cage is installed any one described when, process is as follows：
Step A1, lifting and decentralization：The vertical reinforcement cage is from top to bottom lifted using hanging device and is transferred to the steel
In muscle cage lifting decentralization channel, and pass through Compact Mounts and the vertical reinforcement cage is limited, make the vertical reinforcement
The top segment of cage is located to slot (1)；
The Compact Mounts are laid in the limit that can be moved forward and backward on the aperture of slot (1) and along the aperture of slot (1)
Position device, the Compact Mounts are installed in the top segment of the vertical reinforcement cage；
Step A2, it translates：Vertical reinforcement cage described in step A1 is put down using the folding arm loop wheel machine (3) below barrier (2)
Move on to position；
Step A3, it transfers in place：Compact Mounts described in removal step A1, and by vertical reinforcement cage decentralization in place；
It, will be multiple described after multiple vertical reinforcement cages are respectively mounted in place according to the method described in step A1 to step A3
Vertical reinforcement cage, which is fastenedly connected, to be integrated, and obtains the assembled longitudinal spliced formula steel reinforcement cage；It again will be on each vertical reinforcement cage
The Compact Mounts installed are removed, then are transferred to the longitudinal spliced formula steel reinforcement cage using folding arm loop wheel machine (3)
The installation process of the translation installation steel reinforcement cage is completed in position；
When the translation installation steel reinforcement cage is vertical spliced steel reinforcement cage, from the bottom to top to the vertical spliced steel reinforcement cage
Multiple steel reinforcement cage segments are installed respectively, and process is as follows：
Step B1, bottom segment lifting and decentralization：It will be positioned at the steel reinforcement cage segment lifting of bottommost using folding arm loop wheel machine (3)
And it transfers to the translation mounting groove section, while the steel reinforcement cage segment is carried out by Compact Mounts described in step A1
Limiting makes the top segment of the steel reinforcement cage segment be located to slot (1)；At this point, the Compact Mounts are installed on this
In the top segment of steel reinforcement cage segment；
Step B2, a upper steel reinforcement cage segment lifting continues and transfers：Using folding arm loop wheel machine (3) by upper one institute to be installed
It states steel reinforcement cage segment from top to bottom to lift to the currently mounted steel reinforcement cage segment, and described in currently being lifted
Steel reinforcement cage segment is fastenedly connected with the steel reinforcement cage segment being disposed below, then to described in being connect under being located on steel reinforcement cage segment
Compact Mounts are removed；Later, using folding arm loop wheel machine (3) by the steel reinforcement cage segment currently lifted and positioned at it
All steel reinforcement cage segments of lower section, which synchronize, is transferred, while by the Compact Mounts to currently lifting steel reinforcement cage section
Duan Jinhang is limited, and the top segment of the steel reinforcement cage segment is made to be located to slot (1)；At this point, the Compact Mounts peace
In top segment loaded on the steel reinforcement cage segment；
Steel reinforcement cage segment is connect under described to be lifted below the steel reinforcement cage segment positioned at current and being lifted the steel with current
The adjacent steel reinforcement cage segment in muscle cage segment；
Step B3, it is one or many to repeat step B2, until completing the institute for being located at top in the vertical spliced steel reinforcement cage
It states the lifting of steel reinforcement cage segment, continue and decentralization process, obtain the assembled vertical spliced steel reinforcement cage；
Step B4, it transfers in place：The Compact Mounts on spliced steel reinforcement cage vertical described in step B3 are torn open
It removes, and by the vertical spliced steel reinforcement cage decentralization in place, completes the installation process of the translation installation steel reinforcement cage；
Step 5: decentralization installation steel reinforcement cage installation：Using hanging device described in step A1, steel reinforcement cage is installed into the decentralization and is hung
It fills and transfers to residing reinforcing bar cage hoisting decentralization channel；Treat the decentralization installation reinforcing bar in the wall steel bar cage
After cage is transferred in place, by the translation installation steel reinforcement cage fastening that steel reinforcement cage is installed in the decentralization with installation is complete in step 4
It is connected as one, obtains the wall steel bar cage that installation is complete；
Step 6: underwater concrete construction：Underwater concrete construction is carried out to constructed diaphram wall, is applied
The molding diaphram wall of work.
2. subway station construction method of underground continuous wall in a kind of confined space described in accordance with the claim 1, it is characterised in that：
The height of each steel reinforcement cage segment is no more than h1 in step 3；Wherein, h1=0.4h~0.7h.
3. according to subway station construction method of underground continuous wall in a kind of confined space described in claims 1 or 2, feature exists
In：Hanging device described in step A1 is crawler crane.
4. according to subway station construction method of underground continuous wall in a kind of confined space described in claims 1 or 2, feature exists
In：Compact Mounts described in step A1 include the more cross spacing beams (4) being laid in same level, the transverse direction
Limit beam (4) and slot (1) perpendicular laying；
The length of the cross spacing beam (4) is more than the width of slot (1), and the every cross spacing beam (4) is inserted into institute
It states in top segment, the every cross spacing beam (4) is respectively positioned on above slot (1) and its both ends is respectively supported at slot (1)
On the soil body of both sides.
5. according to subway station construction method of underground continuous wall in a kind of confined space described in claim 4, it is characterised in that：
The quantity of cross spacing beam (4) is two in the Compact Mounts.
6. according to subway station construction method of underground continuous wall in a kind of confined space described in claims 1 or 2, feature exists
In：Step A1, the height of top segment described in step B1 and step B2 is 20cm~50cm.
7. according to subway station construction method of underground continuous wall in a kind of confined space described in claims 1 or 2, feature exists
In：Folding arm loop wheel machine (3) described in step A1 and step B2 is respectively positioned on the soil body of slot (1) side.
8. according to subway station construction method of underground continuous wall in a kind of confined space described in claims 1 or 2, feature exists
In：The length of wall steel bar cage described in step 1 is not less than 20m, and the height of the wall steel bar cage is more than 5m.
9. according to subway station construction method of underground continuous wall in a kind of confined space described in claims 1 or 2, feature exists
In：Vertical spacing h at the top of slot described in step 1 (1) between barrier (2) bottom is more than the height of folding arm loop wheel machine (3)
Degree.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111088792A (en) * | 2020-01-07 | 2020-05-01 | 中国葛洲坝集团市政工程有限公司 | Double L-shaped reinforcement cage hoisting method in underground continuous wall construction |
| CN111764374A (en) * | 2020-05-28 | 2020-10-13 | 浙江土工岩土科技有限公司 | Construction method of underground continuous wall in low-clearance environment |
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| CN111764374A (en) * | 2020-05-28 | 2020-10-13 | 浙江土工岩土科技有限公司 | Construction method of underground continuous wall in low-clearance environment |
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