CN111593762B - Construction method for prefabricated inner partition wall of tunnel type comprehensive pipe gallery - Google Patents
Construction method for prefabricated inner partition wall of tunnel type comprehensive pipe gallery Download PDFInfo
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- CN111593762B CN111593762B CN202010363400.4A CN202010363400A CN111593762B CN 111593762 B CN111593762 B CN 111593762B CN 202010363400 A CN202010363400 A CN 202010363400A CN 111593762 B CN111593762 B CN 111593762B
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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
- E02D29/10—Tunnels or galleries specially adapted to house conduits, e.g. oil pipe-lines, sewer pipes ; Making conduits in situ, e.g. of concrete ; Casings, i.e. manhole shafts, access or inspection chambers or coverings of boreholes or narrow wells
Abstract
The invention provides a construction method for a prefabricated inner partition wall of a tunnel type comprehensive pipe gallery, which comprises the following steps: the method comprises the following steps of firstly, pouring a pipe gallery lining wall and filling an inverted arch; hoisting, namely hoisting the prefabricated separation equipment to a preset position, and supporting the separation equipment by using auxiliary equipment; the partition device includes: the second partition wall and the two first partition walls are respectively arranged on the upper side and the lower side of the laminated slab; a second pouring step of pouring concrete on the inverted arch filling and laminated slab; and a dismantling step, namely dismantling the auxiliary equipment after the cast concrete reaches the preset strength. According to the invention, the separation equipment is hoisted to the preset position and supported by the auxiliary equipment so as to ensure the installation position of the separation equipment, and the separation equipment is connected with the pipe gallery through cast-in-place concrete, so that each separation equipment can be stably arranged in the pipe gallery, and the separation equipment is prefabricated, does not need to be cast in place, is convenient to install and construct, and reduces the operation difficulty.
Description
Technical Field
The invention relates to the technical field of tunnel engineering, in particular to a construction method for a prefabricated inner partition wall of a tunnel type comprehensive pipe gallery.
Background
In recent years, comprehensive pipe galleries are widely popularized and applied in China, and the construction areas of the comprehensive pipe galleries gradually extend to high-density urban areas and natural mountain areas of buildings, so that tunnel type pipe galleries are produced at the same time. Because pipeline kind variety in the piping lane, therefore, need carry out the subdivision setting to the piping lane in tunnel formula piping lane to guarantee that the fortune dimension of various pipelines is smooth and easy, tunnel formula piping lane is mainly through setting up partition wall and upper and lower layer baffle in the piping lane and separate in order to form each piping lane cabin body. Usually, the partition wall construction in the piping lane mainly adopts cast-in-place reinforced concrete technology, but cabin body cross section is narrow and small in the piping lane to tunnel piping lane longitudinal section overlength, reinforcement and template support are because of the limited operation difficulty in space when causing cast-in-place partition wall easily, and, the template is demolishd vertically to be transported inconveniently after concrete placement accomplishes, and the construction operation face is limited, and the efficiency of construction is low.
Disclosure of Invention
In view of the above, the invention provides a construction method for a prefabricated inner partition wall of a tunnel type comprehensive pipe gallery, and aims to solve the problems that in the prior art, the operation space is limited and the efficiency is low easily caused by the fact that a cast-in-place reinforced concrete process is adopted for inner partition wall construction of the tunnel type pipe gallery.
The invention provides a construction method for a prefabricated inner partition wall of a tunnel type comprehensive pipe gallery, which comprises the following steps: the method comprises the following steps of firstly, pouring a pipe gallery lining wall and filling an inverted arch; hoisting, namely hoisting the prefabricated separation equipment to a preset position, and supporting the separation equipment by using auxiliary equipment; wherein the separation device comprises: the second partition wall and the two first partition walls are respectively arranged on the upper side and the lower side of the laminated slab; a second pouring step of pouring concrete on the inverted arch filling and laminated slab; and a dismantling step, namely dismantling the auxiliary equipment after the cast concrete reaches the preset strength.
Further, in the construction method for prefabricating the inner partition wall of the tunnel type comprehensive pipe gallery, the hoisting step further comprises the following steps: a first hoisting substep, hoisting the two first partition walls to a preset installation position above the inverted arch filler, and supporting by using first auxiliary equipment; wherein, the two first partition walls are arranged in parallel; a second hoisting substep, hoisting the laminated slab to a preset mounting position above the two first partition walls, and supporting by using second auxiliary equipment; and a third hoisting substep, hoisting the second partition wall to a preset mounting position above the laminated slab, and supporting by using third auxiliary equipment.
Further, in the construction method for prefabricating the inner partition wall of the tunnel type comprehensive pipe gallery, in the first pouring step, when the lining wall of the pipe gallery is poured, hanging rings are pre-buried at the top of the pipe gallery; in the hoisting step, the hoisting device is installed on the hoisting ring, and the separation equipment is hoisted to a preset position through the hoisting device.
Further, in the construction method for prefabricating the inner partition wall of the tunnel type comprehensive pipe gallery, a plurality of lifting rings are arranged, each lifting ring forms two parallel rows, and each lifting ring in each row is arranged along the longitudinal direction of the pipe gallery; the hoisting device comprises: the two hoisting assemblies correspond to the two rows of hoisting rings one by one; each hoisting component comprises: the device comprises a track, a lifting hook, a connecting chain and an adjusting piece; the track can be dismantled with one row of rings wherein and be connected, and lifting hook slidable ground is connected in the track, and the one end of connecting chain is connected with the lifting hook, and the other end of connecting chain can be dismantled with the separation equipment and be connected, and the regulating part sets up in the connecting chain to adjust the length of connecting chain.
Further, in the construction method for prefabricating the inner partition wall of the tunnel type comprehensive pipe gallery, the first auxiliary equipment comprises: the first inclined strut type vertical column comprises a plurality of inclined strut supporting legs, a plurality of first inclined strut vertical columns and a plurality of first mounting rings prefabricated on a first partition wall; in the first pouring step, when the lining wall of the pipe gallery is poured, inclined strut supporting legs are pre-buried at the filling position of the inverted arch and between the two first partition walls and between each first partition wall and the corresponding side wall of the pipe gallery; in the first hoisting substep, after each first partition wall is hoisted to a preset installation position, the two ends of each first inclined strut upright post are respectively connected with the inclined strut supporting leg and any first installation ring.
Further, in the above construction method for prefabricating the inner partition wall of the tunnel type comprehensive pipe gallery, in the second hoisting substep, the second auxiliary equipment comprises: a support; after the laminated slab is hoisted to the preset installation position, the support is arranged between the laminated slab and the inverted arch filler.
Further, in the above construction method for prefabricating the inner partition wall of the tunnel type comprehensive pipe gallery, in the third hoisting substep, the third auxiliary equipment comprises: the second diagonal bracing column, a second mounting ring prefabricated on the second partition wall and a third mounting ring prefabricated on the laminated slab; after the second prefabricated wall is hoisted to the preset installation position, two ends of the second inclined strut upright post are respectively connected with the second installation ring and the third installation ring in a one-to-one correspondence mode.
Further, in the construction method for prefabricating the inner partition wall of the tunnel type comprehensive pipe gallery, in the first pouring step, when the lining wall of the pipe gallery is poured, connecting ribs are embedded in the positions, corresponding to the superimposed slab, of the two side walls of the pipe gallery, the positions, corresponding to the two first partition walls, of the bottom of the pipe gallery and the positions, corresponding to the second partition wall, of the top of the pipe gallery; the second casting step further comprises: laying plate surface reinforcing steel bars on the laminated slab, connecting the plate surface reinforcing steel bars with embedded connecting bars of two side walls of the pipe gallery, and connecting the lower parts of the two first partition walls and the upper part of the second partition wall with the embedded connecting bars corresponding to the pipe gallery; and sequentially pouring concrete on the inverted arch filling and the laminated slab, and curing the poured concrete.
Further, in the construction method for the prefabricated internal partition wall of the tunnel type comprehensive pipe gallery, before the second pouring step, the method further comprises the following steps: dismantling the hoisting device; the second pouring step and the dismantling step further comprise: filling the gap between the upper portion of the second partition wall and the top of the pipe gallery.
Further, in the construction method for the prefabricated inner partition wall of the tunnel type comprehensive pipe gallery, the gap between the upper portion of the second partition wall and the top of the pipe gallery is filled with solid cement brick masonry and rock wool soft materials.
According to the invention, the separation equipment is hoisted to the preset position and supported by the auxiliary equipment to ensure the installation position of the separation equipment, and the separation equipment is connected with the pipe gallery through cast-in-place concrete, so that each separation equipment can be stably arranged in the pipe gallery, and the separation equipment is prefabricated, is simple and convenient to install and construct, does not need to be cast in place, reduces the operation difficulty, improves the construction efficiency, and solves the problems of limited operation space and low efficiency caused by the fact that the cast-in-place reinforced concrete process is adopted in the tunnel type pipe gallery inner partition wall construction in the prior art.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a flowchart of a construction method for prefabricating an internal partition wall of a tunnel type comprehensive pipe gallery according to an embodiment of the invention;
fig. 2 is a flowchart of a hoisting step in a construction method for prefabricating an inner partition wall of a tunnel type comprehensive pipe gallery provided by the embodiment of the invention;
fig. 3 is a schematic structural view of a tunnel type utility tunnel according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a partition device in a tunnel type comprehensive pipe rack according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of an auxiliary device in a tunnel type comprehensive pipe rack according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a hoisting device in a tunnel type comprehensive pipe gallery according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a partition device support in a tunnel utility tunnel according to an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Referring to fig. 1, fig. 1 is a flowchart of a construction method for prefabricating an internal partition wall of a tunnel type comprehensive pipe gallery according to an embodiment of the present invention. As shown in the figure, the construction method of the prefabricated internal partition wall of the tunnel type comprehensive pipe gallery comprises the following steps:
a first casting step S1, casting the gallery lining wall and the inverted arch filling.
Specifically, referring to fig. 3 and 4, firstly, the lining wall 1 of the pipe gallery is poured, after the pouring is completed, the inverted arch filling 2 is poured, and a secondary cast-in-place layer 6 with the thickness of 300mm is reserved when the inverted arch filling 2 is poured to reach the final plate surface elevation of the bottom plate in the pipe gallery. Wherein the secondary cast-in-place layer 6 is not cast in this step. The piping lane is tunnel type utility tunnel.
A hoisting step S2, hoisting the prefabricated separation equipment to a preset position, and supporting the separation equipment by using auxiliary equipment; wherein the separation device comprises: the laminated slab is transversely arranged in the pipe gallery, and the second partition wall and the two first partition walls are respectively arranged on the upper side and the lower side of the laminated slab.
Specifically, the partition device is hoisted to a preset position through the hoisting device. Referring to fig. 3 and 4, superimposed sheet 5 transversely is established in the piping lane, and superimposed sheet 5 sets up second partition wall 4 in superimposed sheet 5's top, sets up two first partition walls 3 in superimposed sheet 5's below two upper and lower parts with the space separation in the piping lane. The second partition wall 4 and the two first partition walls 3 are perpendicular to the superimposed slab 5, and the position where the second partition wall 4 is disposed corresponds to the position where one of the first partition walls 3 is disposed. Superimposed sheet 5, second partition wall 4 and two first partition walls 3 separate into four piping lane cabins and a ventilation maintenance passageway 26 with the piping lane, and four piping lane cabins do respectively: a high voltage power compartment 22, a power telecommunications compartment 23, a comprehensive piping compartment 24 and a gas compartment 25.
Preferably, the first partition wall 3 and the second partition wall 4 are both prefabricated solid reinforced concrete structures.
A second casting step S3 is to cast concrete on the inverted arch filler and the composite slab.
Specifically, cast-in-place concrete is poured on the inverted arch filler 2, and the cast-in-place concrete layer forms the secondary cast-in-place layer 6, so that the inverted arch filler 2 and the secondary cast-in-place layer 6 constitute an inverted arch filler floor, that is, a floor of the pipe gallery. And, the concrete poured on the invert stuffing 2 (i.e., the secondary cast-in-place layer 6) fixes the bottoms of the two first partition walls 3, thereby ensuring that the two first partition walls 3 and the invert stuffing 2 are connected together.
In specific implementation, the thickness of the secondary cast-in-place layer 6 is not less than 300 mm.
Cast-in-place concrete is poured on the laminated slab 5, the cast-in-place concrete layer forms a secondary cast-in-place layer 6, and the laminated slab 5 and the secondary cast-in-place layer 6 on the laminated slab form a top plate in the pipe gallery. The concrete poured on the laminated slab 5 (i.e., the secondary cast-in-place layer 6) fixes the bottom (upper portion shown in fig. 4) of the second partition wall 4, thereby securing the laminated slab 5 and the second partition wall 4 together.
And a dismantling step S4, dismantling the auxiliary equipment after the cast concrete reaches the preset strength.
Specifically, the concrete on the secondary cast-in-place layer 6 on the laminated slab 5 and the concrete on the secondary cast-in-place layer 6 on the inverted arch filling 2 are maintained until the design strength is reached, and the auxiliary equipment is removed, so that the installation and construction of the partition wall in the pipe gallery are completed.
It can be seen that, in this embodiment, to separate equipment hoist to predetermineeing the position and support through auxiliary assembly, in order to guarantee the mounted position who separates equipment, and will separate equipment and piping lane through cast in situ concrete and be connected, make each separate equipment can stably arrange in the piping lane, and is simple and convenient, and, separate equipment and be prefabricated, need not cast-in-place, be convenient for installation, the operation degree of difficulty has been reduced, construction efficiency is improved, the problem of the tunnel type piping lane interior partition wall construction among the prior art adopts cast-in-place reinforced concrete technology to easily cause operating space to be restricted and inefficiency is solved.
In the above embodiment, in the first pouring step S1, when the pipe gallery is poured to lay a wall, the hanging ring is embedded in the top of the pipe gallery.
Specifically, the lining wall 1 of the pipe gallery is poured after the hanging rings 7 are embedded, the hanging rings 7 are multiple, the hanging rings 7 form two parallel rows, the positions of the two rows of hanging rings 7 correspond to the arrangement positions of the two first partition walls 3 respectively, the hanging rings 7 in each row are arranged along the longitudinal direction of the pipe gallery, and preferably, the hanging rings 7 in each row are uniformly distributed.
When the concrete implementation, first partition wall 3, second partition wall 4 and superimposed sheet 5 set up the multistage along the vertical of piping lane. The distance between two adjacent hanging rings 7 in the longitudinal direction of the pipe gallery is determined according to the longitudinal section lengths of the first partition wall 3, the second partition wall 4 and the superimposed plates 5, and each first partition wall 3 and each second partition wall 4 is ensured to correspond to at least two hanging rings 7 in the longitudinal direction.
During concrete implementation, rings 7 are pre-buried in piping lane lining wall 1, and rings 7's atress should satisfy the requirement that can bear the hoist and mount.
In the hoisting step S2, the hoisting device is installed on the hoisting ring, and the partition device is hoisted to a preset position by the hoisting device.
Specifically, the hoisting device hoists each part in the separation equipment in sequence. Referring to fig. 5 and 6, the hoist device may include: two hoisting assemblies. Two hoisting assemblies correspond to the two rows of lifting rings 7 one by one, and one hoisting assembly corresponds to and is connected with one row of lifting rings 7. Each hoist assembly may include: a track 18, a hook 19, a connecting chain 20 and an adjusting piece 21. Wherein the rail 18 is detachably connected to one of the rows of rings 7 and the hook 19 is slidably connected to the rail 18 so that the hook 19 can slide along the rail 18. One end of the connecting chain 20 is connected with the lifting hook 19, and the other end of the connecting chain 20 is detachably connected with the separation equipment, so that the two connecting chains 20 in the two hoisting assemblies are detachably connected with the components in the separation equipment, so that the separation equipment is hoisted to a preset position.
The adjusting member 21 is provided to the link chain 20, and the adjusting member 21 is used to adjust the length of the link chain 20.
In particular embodiments, the rails 18 may be i-shaped rails. The hook 19 may include: a U-shaped member 191, two connecting members 193, and two pulleys 192. The U-shaped member 191 includes: two connecting plates arranged in parallel and a bottom plate clamped between the first ends of the two connecting plates. The second ends of the two connecting plates are connected with the first ends of the two connecting pieces in a one-to-one correspondence, the two connecting pieces 193 are arranged at the open ends of the U-shaped pieces 191, and the two connecting pieces 193 are parallel to the bottom plate. The second ends of the two connecting members 193 have a predetermined distance therebetween, which can be determined according to practical situations, and this embodiment does not limit this. The two pulleys 192 are correspondingly connected with the second ends of the two connecting pieces 193 one by one, the two pulleys 192 are respectively arranged on two sides of the I-shaped steel rail one by one, and the two pulleys 192 can freely and linearly slide along the I-shaped steel rail so as to be conveniently moved to different positions in the pipe gallery.
In particular, the connecting chain 20 may be a steel chain. The adjusting member 21 may be a chain block, so that the connecting chain 20 and the adjusting member 21 form a sling structure with an automatically adjustable length.
It can be seen that, in this embodiment, through at the pre-buried rings of piping lane, the hoist device's of being convenient for installation to can separate equipment hoist and mount to predetermineeing the position through hoist device, simple and convenient does not receive the restriction of piping lane inner space, has reduced the operation degree of difficulty.
Referring to fig. 2, fig. 2 is a flowchart of a hoisting step in a construction method for prefabricating an internal partition wall of a tunnel type comprehensive pipe gallery according to an embodiment of the present invention. As shown, the hoisting step S2 further includes:
a first lifting substep S21 of lifting the two first partition walls to a preset installation position above the inverted arch filling and supporting them with a first auxiliary device; wherein, two first partition walls are arranged in parallel.
Specifically, the first auxiliary device includes: a plurality of sprag legs 8, a plurality of first sprag uprights 15 and a plurality of first mounting rings 9. Wherein, each first partition wall 3 is prefabricated with a plurality of first mounting rings 9, and each first mounting ring 9 on each first partition wall 3 is respectively and symmetrically arranged at two opposite sides of the first partition wall 3. During concrete implementation, the first mounting ring 9 is fixedly connected with the stressed steel bars in the first partition wall 3, and the stress of the first mounting ring 9 meets the stress requirement of hoisting the first partition wall 3.
In first step S1 of pouring, when pouring the gallery lining wall, all pre-buried bracing landing leg between the inverted arch filling place and corresponding to between two first partition walls and between the side wall that every first partition wall and gallery correspond. Specifically, each bracing landing leg 8 is all pre-buried in the 2 departments of invert packing to, each bracing landing leg 8 sets up respectively between two first partition walls 3 and between the side wall that every first partition wall 3 and piping lane correspond, that is to say, all is provided with bracing landing leg 8 in every cabin. Preferably, each bracing leg 8 is placed in an intermediate position within each bay.
In specific implementation, the number of the bracing legs 8 may be determined according to actual conditions, and this embodiment does not limit this.
In the first lifting substep S21, after each first partition wall is lifted to a preset mounting position, both ends of each first diagonal brace upright are respectively connected with the diagonal brace legs and any first mounting ring. Specifically, the first inclined strut upright 15 is plural, corresponding to each first partition wall 3, one end of each first inclined strut upright 15 is connected with the inclined strut leg 8, and the other end of each first inclined strut upright 15 is connected with one first mounting ring 9. Each of the first diagonal support columns 15 symmetrically supports both sides of each of the first partition walls 3 to ensure accuracy of the installation position of the first partition walls 3.
In specific implementation, the stress of each inclined strut supporting leg 8 should meet the requirement of the inclined strut force for supporting the first partition wall.
And a second lifting substep S22 of lifting the laminated slab to a preset mounting position above the two first partition walls and supporting the laminated slab by using a second auxiliary device.
Specifically, the second auxiliary device includes: a bracket 17. After the superimposed sheet 5 hoists to predetermineeing the mounted position, set up support 17 between superimposed sheet 5 and inverted arch fill 2 to support superimposed sheet 5, guarantee the degree of accuracy of superimposed sheet 5 mounted position. The number of the brackets 17 may be plural, and the specific number may be determined according to actual situations, which is not limited in this embodiment. Preferably, the brackets 17 are evenly distributed between the superimposed slab 5 and the inverted arch stuffing 2.
And a third hoisting substep S23 of hoisting the second partition wall to a preset installation position above the laminated slab and supporting the second partition wall with a third auxiliary device.
Specifically, the third auxiliary device includes: a second sprag upright 16, a second mounting ring 10 and a third mounting ring 11. The second mounting rings 10 are prefabricated on the second partition wall 4, the number of the second mounting rings 10 may be multiple, and the second mounting rings 10 are respectively and symmetrically arranged on two opposite sides of the second partition wall 4. The third collar 11 is prefabricated on the composite slab 5, and the number of the third collars 11 may be plural.
After the second partition wall 4 is hoisted to the preset installation position, two ends of the second inclined strut upright post 16 are respectively connected with the second installation ring 10 and the third installation ring 11 in a one-to-one correspondence manner. Specifically, the number of the second sprag columns 16 is plural, one end of each second sprag column 16 is connected to the second mounting ring 10, and the other end of each second sprag column 16 is connected to the third mounting ring 11. Each of the second sprag pillars 16 symmetrically supports both sides of the second partition wall 4 to ensure accuracy of the installation position of the second partition wall 4.
In specific implementation, when the first partition wall 3 is hoisted, two connecting chains 20 in the hoisting device are connected with the first mounting ring 9 on the first partition wall 3, so that the first partition wall 3 is hoisted horizontally and is moved to a mounting position along the longitudinal direction of the pipe gallery by the lifting hook 19.
During specific hoisting, the lifting hook 19 is moved to the position of the tunnel entrance, the first partition wall 3 is conveyed to the tunnel entrance through the transport vehicle, then the first partition wall 3 is horizontally hoisted to the installation position through the lifting hook 19, the connecting chains 20 and the adjusting pieces 21, and then the adjusting pieces 21 on the two connecting chains 20 are respectively adjusted to adjust the lengths of the two connecting chains 20, so that the first partition wall 3 is vertically placed at the preset installation position. And then supported by the first bracing strut 15 through the bracing legs 8 and the first mounting ring 9 to form a stable structure.
During specific implementation, when pouring gallery lining wall 1, along vertical pre-buried a plurality of hoisting rings 12, each hoisting ring 12 all is located corresponding to 5 departments of superimposed sheet in piping lane both sides wall department. The hoisting ring 12 is pre-buried in the pipe gallery lining wall 1, and the stress of the hoisting ring 12 can meet the requirement of bearing hoisting. The distance between two adjacent lifting rings 12 is determined according to the longitudinal section length of the laminated slab 5, and each laminated slab 5 is ensured to correspond to at least two lifting rings 12 in the longitudinal direction.
When the superimposed slab 5 is hoisted, the superimposed slab 5 is transported to the tunnel entrance by transportation, and the superimposed slab 5 is horizontally hoisted to the installation position by the hook 19, the link chain 20, and the adjuster 21. Then, the hoisting rings 12 longitudinally embedded on the two sides of the pipe gallery are used as fixed positions for pulling and dragging the pulling ropes, so that the superimposed plates 5 are laterally guided to enter the installation positions between the first partition wall 3 and the two side walls of the pipe gallery. Then, a bracket 17 is provided below the superimposed sheet 5 to support and fix the superimposed sheet 5.
The hoisting method of the second partition wall 4 is the same as the hoisting method of the first partition wall 3, and please refer to the above method, which is not described herein again.
When the concrete hoisting is carried out, the two first partition walls 3 are hoisted firstly, then the laminated slab 5 is hoisted, and finally the second partition wall 4 is hoisted.
It can be seen that, in this embodiment, hoist to preset mounted position department at first divider wall, second divider wall and superimposed sheet, support first divider wall, second divider wall and superimposed sheet through bracing stand and support, can effectively guarantee the stability of first divider wall, second divider wall and superimposed sheet and the degree of accuracy in position.
In the foregoing embodiments, in the first pouring step S1, when the pipe gallery is used for lining walls, the connecting ribs are embedded in the two side walls of the pipe gallery corresponding to the superimposed slab, the bottom of the pipe gallery corresponding to the two first partition walls, and the top of the pipe gallery corresponding to the second partition wall.
Specifically, the connecting ribs 13 are a plurality of, and the connecting ribs 13 are pre-embedded in the two side walls of the pipe rack corresponding to the superimposed plates 5, the connecting ribs 13 are pre-embedded in the bottom of the pipe rack (the lower part shown in fig. 4) corresponding to the two first partition walls 3, and the connecting ribs 13 are also pre-embedded in the top of the pipe rack (the upper part shown in fig. 4) corresponding to the second partition wall 4. Each connecting rib 13 is pre-buried in the structure of the lining wall 1, the exposed length of each connecting rib 13 is determined according to the actual condition, and the embodiment does not limit the length, but the connection requirement is guaranteed.
The second pouring step S3 further includes:
and a substep S31, paving plate reinforcing steel bars on the laminated slab, connecting the plate reinforcing steel bars with the embedded connecting bars on the two side walls of the pipe gallery, and connecting the lower parts of the two first partition walls and the upper part of the second partition wall with the embedded connecting bars corresponding to the pipe gallery.
Specifically, the lower part of each first partition wall 3 is embedded with a connecting steel bar 14, and the connecting steel bar 14 is welded and fixed with the connecting steel bar 13 at the bottom of the pipe gallery. The upper portion of second partition wall 4 is pre-buried to have connecting reinforcement 14, and this connecting reinforcement 14 carries out welded fastening shaping with the splice bar 13 at piping lane top.
And a substep S32 of pouring concrete on the inverted arch filling and the laminated slab in sequence and curing the poured concrete.
Specifically, concrete is poured on the inverted arch filler 2 (i.e., the secondary cast-in-place layer 6 on the inverted arch filler 2 is formed), then concrete is poured on the composite slab 5 (i.e., the secondary cast-in-place layer 6 on the composite slab 5 is formed), and then the poured concrete is cured.
When pouring the secondary cast-in-place layer 6 on the inverted arch filler 2, the end part of each first inclined strut upright post 15 connected with the first mounting ring 9 and the end part of the support 17 are buried in the secondary cast-in-place layer 6, and meanwhile, the joint of the connecting steel bar 14 and the connecting steel bar 13 of each first partition wall 3 is also buried, so that the first partition walls 3 and the secondary cast-in-place concrete layer are integrated, and the positions of the two first partition walls 3 are ensured to be fixed at the mounting positions.
When the secondary cast-in-place layer 6 is poured on the laminated slab 5, the joints between the slab surface reinforcing steel bars and the connecting ribs 13 of the laminated slab 5 and the ends of the second diagonal bracing columns 16 connected with the third mounting ring 11 are buried by concrete, so that the second partition wall 4 and the secondary cast-in-place concrete layer are integrated, and the position of the second partition wall 4 is fixed at the mounting position.
In the above embodiments, before the second pouring step S3, the method further includes: and (5) dismantling the hoisting device. Specifically, the rails 18, the hooks 19, the connecting chains 20, and the adjusting members 21 are all removed to provide a space for the connection of the connecting bars 14 and the connecting bars 13 of the second partition wall 4.
Between the second pouring step S3 and the dismantling step S4, the method further includes: filling the gap between the upper portion of the second partition wall and the top of the pipe gallery. Specifically, the space between the upper portion of the second partition wall and the top of the pipe gallery is filled with solid cement brick masonry and rock wool soft materials, so that the influence of fire separation of all cabin bodies of the pipe gallery and settlement of the top of the tunnel on the partition wall of the pipe gallery of the tunnel is guaranteed.
In the removal step S4, the removed auxiliary device includes: the first inclined strut upright post 15, the second inclined strut upright post 16, the bracket 17, the first mounting ring 9 exposed outside each first partition wall 3 and the second mounting ring 10 exposed outside the second partition wall 4.
To sum up, in this embodiment, with the assembled integrated configuration system of the solid partition wall of spacer apparatus formation in the piping lane and superimposed sheet, can follow piping lane longitudinal movement's hoist device through the top installation at the piping lane and hoist the spacer apparatus to adopt auxiliary assembly to support the spacer apparatus, not only guaranteed the mounted position's of spacer apparatus the degree of accuracy, realized the simple and easy quick assembly construction of partition wall in the inside limited space of piping lane moreover, reduced the operation degree of difficulty, improved the efficiency of construction.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (4)
1. A construction method for prefabricating an inner partition wall of a tunnel type comprehensive pipe gallery is characterized by comprising the following steps:
the method comprises the following steps of firstly, pouring a pipe gallery lining wall and filling an inverted arch;
hoisting, namely hoisting the prefabricated separation equipment to a preset position, and supporting the separation equipment by using auxiliary equipment; wherein the separation device comprises: the second partition wall and the two first partition walls are respectively arranged on the upper side and the lower side of the laminated slab;
a second pouring step of pouring concrete on the inverted arch filler and the composite slab;
a dismantling step, namely dismantling the auxiliary equipment after the cast concrete reaches a preset strength;
in the first pouring step, when a pipe gallery lining wall is poured, hanging rings are pre-buried at the top of the pipe gallery;
in the hoisting step, a hoisting device is installed on the hoisting ring, and the separation equipment is hoisted to a preset position through the hoisting device;
in the first pouring step, when a pipe gallery lining wall is poured, connecting ribs are pre-buried in the positions, corresponding to the superimposed slab, of the two side walls of the pipe gallery, the positions, corresponding to the two first partition walls, of the bottom of the pipe gallery and the positions, corresponding to the second partition wall, of the top of the pipe gallery;
the second casting step further comprises:
laying plate surface reinforcing steel bars on the laminated slab, connecting the plate surface reinforcing steel bars with embedded connecting bars of two side walls of the pipe gallery, and connecting the lower parts of the two first partition walls and the upper part of the second partition wall with the embedded connecting bars corresponding to the pipe gallery;
sequentially pouring concrete on the inverted arch filler and the composite slab, and curing the poured concrete;
the hoisting step further comprises:
a first hoisting substep of hoisting the two first partition walls to a preset installation position above the inverted arch filler and supporting by using first auxiliary equipment; wherein, two first partition walls are arranged in parallel;
a second hoisting substep, hoisting the laminated slab to a preset mounting position above the two first partition walls, and supporting by using second auxiliary equipment;
a third hoisting substep, hoisting the second partition wall to a preset mounting position above the laminated slab, and supporting by using third auxiliary equipment;
the first auxiliary device includes: the first installation ring is prefabricated on the first partition wall;
in the first pouring step, when a pipe gallery lining wall is poured, the inclined strut supporting legs are pre-buried at the inverted arch filling position and between the two first partition walls and between each first partition wall and the side wall corresponding to the pipe gallery;
in the first hoisting substep, after each first partition wall is hoisted to a preset installation position, two ends of each first inclined strut upright post are respectively connected with the inclined strut supporting leg and any first installation ring;
in the second sub-step of lifting and lowering,
the second auxiliary device includes: a support; after the laminated slab is hoisted to a preset installation position, arranging the bracket between the laminated slab and the inverted arch filler;
in the third sub-step of lifting and lowering,
the third auxiliary device includes: the second diagonal brace upright post, a second mounting ring prefabricated on the second partition wall and a third mounting ring prefabricated on the laminated slab; and after the second partition wall is hoisted to a preset installation position, the two ends of the second inclined strut upright post are respectively connected with the second installation ring and the third installation ring in a one-to-one correspondence manner.
2. The construction method for prefabricating the internal partition wall of the tunnel type comprehensive pipe gallery according to claim 1,
the number of the lifting rings is multiple, the lifting rings form two parallel rows, and the lifting rings in each row are arranged along the longitudinal direction of the pipe gallery;
the hoisting device comprises: the two hoisting assemblies correspond to the two rows of hoisting rings one by one; each hoist assembly all includes: the device comprises a track, a lifting hook, a connecting chain and an adjusting piece; the track can be dismantled with one row of rings wherein and be connected, lifting hook slidable connect in the track, the one end of connecting chain with the lifting hook is connected, the other end of connecting chain with the separation equipment can be dismantled and be connected, the regulating part set up in the connecting chain, in order to adjust the length of connecting chain.
3. The construction method for prefabricating the internal partition wall of the tunnel type comprehensive pipe gallery according to claim 1,
before the second pouring step, the method further comprises the following steps: dismantling the hoisting device;
the second pouring step and the dismantling step further comprise the following steps: filling a gap between an upper portion of the second partition wall and the top of the pipe gallery.
4. The method for constructing the prefabricated inner partition wall of the tunnel type comprehensive pipe gallery according to claim 3, wherein a gap between the upper part of the second partition wall and the top of the pipe gallery is filled by solid cement brick masonry and rock wool softness.
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