CN208201877U - The constructing device of the underwater back cover of large-area deep foundation pit is carried out using small hopper - Google Patents
The constructing device of the underwater back cover of large-area deep foundation pit is carried out using small hopper Download PDFInfo
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- CN208201877U CN208201877U CN201820336703.5U CN201820336703U CN208201877U CN 208201877 U CN208201877 U CN 208201877U CN 201820336703 U CN201820336703 U CN 201820336703U CN 208201877 U CN208201877 U CN 208201877U
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Abstract
The utility model discloses a kind of constructing devices that the underwater back cover of large-area deep foundation pit is carried out using small hopper, belong to underwater bottom closing device field, the constructing device is by simple back cover platform, conduit, small hopper and pump truck composition, simple back cover platform is set up using deep footing groove enclosing structure, it is made of several groups supporting beam, each group supporting beam is made of a pair of beams and several pairs of stringers, wherein this is supported crossbeam across two sides building enclosure by building enclosure, each pair of stringer is fixed on this to the fixed each small hopper of support on crossbeam, each small hopper passes through a conduit and protrudes into underwater bottom of foundation ditch, the feed opening of small hopper connecting conduit is equipped with the enclosed mechanism of switch feed opening；Pump truck is by concrete pump pipe and the small hopper of pump concrete is needed to be connected as its pump concrete.The utility model enormously simplifies construction, reduces difficulty of construction and construction risk, while accelerating construction speed and back cover progress again, improves the quality of bottom concrete, reduces construction cost.
Description
Technical field
The utility model belongs to underwater back cover constructing device field, is suitable for the underwater back cover construction of all kinds of deep basal pits.For
In field of bridge construction Construction of Deep Foundation and underground engineering deep foundation pit construction, to ensure to form dry operation item in deep basal pit
Part need to carry out the underwater bottom concrete casting situation of large area.
Background technique
In bridge foundation construction or in underground engineering construction, since foundation pit is located in deep water or excavation of foundation pit is deeper,
To ensure to be capable of forming dry construction in foundation pit, underwater concrete need to be poured in foundation pit and carries out back cover.Due to foundation pit area
Larger, bottom concrete generally requires to be poured using the big hopper of centralized.
The big hopper of traditional centralized carries out the construction of large volume underwater concrete back cover:
Traditional large volume underwater concrete back cover is poured using the big hopper of centralized, and structure composition is by " envelope
Chute between the big hopper of bottom platform, centralized, small hopper, conduit and the big hopper of connection and small hopper " composition.
Its principle is: setting up one large-scale back cover platform using foundation pit enclosure structure, sets up in 1~2 among platform
Centre collects big hopper (this kind of big hopper by central storage hopper, start switch device and separate hopper forms), and each big hopper is equipped with 4
Device and 4 separate hoppers are started switch, controls the concrete casting of deep basal pit all directions four direction respectively, each starting is opened
Close a corresponding separate hopper.Multiple feed openings (generally 3) wherein are equipped with according to field condition in separate hopper, each feed opening
It is connect with a chute, every chute is connect with a small hopper, and small hopper is connect with a back cover conduit.Feed opening uses
The flow direction of plate control concrete.Concrete is poured into storage hopper by drag pump or pump truck first and is stored, is then opened
It opens and needs starting switch for first that root conduit side of tank, concrete is flowed into the separate hopper of lower section, flowed into afterwards by chute small
First tank casting is carried out in hopper, which takes normal casting after meeting the requirements, be then shut off starting and open
It closes, is stored concrete again in storage hopper, carry out next conduit head tank construction.
It is as follows that the big hopper of traditional centralized carries out large volume underwater concrete back cover construction procedure:
1) deep pit digging in place after, carry out back cover putting up platform, on platform set up centralized hopper, installation conduit,
Small hopper and chute correspond the discharge port in each chute and centralized separate hopper.
2) 4 starters below central aggregate bin are all closed, by discharge port each in separate hopper all using slotting
Pin plate blocks, and leaves behind and does not have to close with the discharge port of first back cover conduit.
3) it is manually entered in centralized storage hopper, is blocked 3 starters using gunnysack, opened in order to avoid concrete enters
In dynamic device, concrete initial set blocks starter over time, leaves behind and needs to pour the starter of side and do not have to
It blocks.
4) delivering concrete into storage hopper.
5) starter not blocked is opened, concrete flows into small hopper by separate hopper, chute.
6) it pulls up the small hopper of annular cover plate and carries out first potting bottom application work.
7) after the completion of a conduit back cover, the discharge port of starter and the separate hopper being connected with the conduit is closed, is unpluged
The discharge port being connected with next back cover conduit.Continue the delivering concrete into storage hopper.
8) next conduit back cover construction is carried out according to the sequence of step 5,6.
Etc. 9) after the completion of the first potting bottom of sides, the starter is closed, being manually entered interior gunnysack of storage hopper etc. should
Starter blocks, and then removal needs to pour the gunnysack in the starter of side.
10) the first envelope construction that other conduits are carried out according to the sequence of step 4 to step 9, it is normal to carry out each conduit in the process
Feed supplement pours.
11) central aggregate bin, back cover platform etc. are removed after the completion of bottom concrete.
The limitation of the big hopper back cover construction of traditional centralized:
1) construction cost is high: large size back cover platform is set up and is removed to needs, needs with the big hopper of centralized and several chutes,
More using raw material, construction cost is high.
2) construction speed is slow: setting up platform and removes the construction time that platform needs or so two weeks.
3) security risk is high: back cover needs to set up large-scale back cover platform, and the big hopper of centralized is installed on platform
Store concrete, therefore back cover platform needs to set up higher, to guarantee that concrete can move smoothly through chute flows into small hopper
First tank is carried out, platform is erected with certain difficulty, and there is a certain security risk for central aggregate bin；Using traditional back cover side
Method carries out back cover, often seals a conduit, requires worker and climb to the top of storage hopper to enter in the big hopper of back cover bottom and carry out
Cleaning and closure starter, operation safety risk are high.
4) difficulty of construction is big: the big hopper of centralized is equipped with 4 starters, is opened due to that can only open a starting every time
It closes, other 3 start switch and must block, in order to avoid concrete, which enters, will start switch closure extremely, cause fiber crops to later period casting
It is tired；And storage hopper bottom is plane, is easy siltation concrete, every casting a period of time will send worker carry out in big hopper
Manual cleaning；If worker's cleaning is not clean, it is easy blocking starter, starter is caused to be difficult to open.
5) first tank is easy during failure and back cover, and concrete waste is big: when every conduit head tank casting, require by
Longer chute flows into concrete in small hopper out of big hopper, if the insecure or gradient is too slow or coagulation for chute erection
Native mobility is unsatisfactory for requiring, and causes largely to deposit and waste, or even first potting bottom is caused to fail.
6) back cover progress is slow, the back cover time is long: due to carrying out at interval of just needing worker to enter in big hopper for a period of time
Operation, and every time the activity duration it is longer, concrete can not be laid in the activity duration in storage hopper, seriously affect back cover into
Degree, causes the back cover time long.
7) back cover quality is relatively poor: since the underwater bottom concrete single side of pouring amount is big, the general back cover time is opposite
Longer, this proposes higher requirement to bottom concrete retarding time and construction organization, it is desirable that the concrete retarding time is necessary
Greater than back cover total time, to accomplish this point, first is that extending the retarding time of concrete, second is that shortening the back cover time.And it uses
The big hopper back cover of traditional back cover carries out the work such as clearing up in storage hopper, it is total to extend back cover due to needing worker repeatedly to enter
Time will affect the construction quality of back cover in this way.
8) the big hopper manufacture difficulty of centralized is big, cost of manufacture is high: the big hopper of centralized is equipped with 4 starters, and opens
The requirement on machining accuracy of dynamic device is higher, and difficulty of processing is relatively large, will necessarily increase the manufacture difficulty of the big hopper of back cover in this way
And cost of manufacture.
Utility model content
The purpose of this utility model is that: (typically at least 200 squares of large area are carried out for traditional big hopper of centralized
More than) deep basal pit (being often referred to cutting depth the is more than 5 meters) limitation that back cover is constructed under water, utility model is improved, is used
Novel small hopper carries out the constructing device of the underwater back cover of large-area deep foundation pit, sets up large-scale back cover platform to be implemented without,
It does not need to set up large-scale hopper progress storing, does not need that it is underwater to can be achieved with large-area deep foundation pit using chute delivering concrete
Concrete sealing bottom.Which greatly simplifies construction, difficulty of construction and construction risk are reduced, while accelerating construction speed and envelope again
Bottom progress improves the quality of bottom concrete, reduces construction cost.
The utility model aim is realized by following technical proposals:
A kind of constructing device carrying out the underwater back cover of large-area deep foundation pit using small hopper, the constructing device is by simple back cover
Platform, conduit, small hopper and pump truck composition, simple back cover platform is set up using deep footing groove enclosing structure, by several groups supporting beam
It constitutes, each group supporting beam is made of a pair of beams and several pairs of stringers, and wherein this crosses over two sides building enclosure by enclosing to crossbeam
Protection structure support, each pair of stringer are fixed on this to fixed each small hopper is supported on crossbeam, and each small hopper passes through a conduit and stretches
Enter underwater bottom of foundation ditch, the feed opening of small hopper connecting conduit is equipped with the enclosed mechanism of switch feed opening；Pump truck is equipped with 3~4,
And by concrete pump pipe and the small hopper of pump concrete is needed to be connected as its pump concrete.
Alternatively, each group supporting beam is arranged side by side, several small hoppers, and outermost two are arranged in every group of supporting beam
More small hoppers are arranged in other group of supporting beam of relative inner in group supporting beam.
Alternatively, small hopper capacity is 1 ± 0.2 side.
The aforementioned main scheme of the utility model and its each further selection scheme can be freely combined to form multiple schemes,
It can be used for the utility model and claimed scheme；And the utility model, (each non conflicting selection) selection between and and
It can also be freely combined between other selections.Those skilled in the art after understanding the utility model according to the prior art and
Common knowledge can be illustrated there are many combination, be the claimed technical solution of the utility model, do not do exhaustion herein.
The utility model has the beneficial effects that being filled using the construction that novel small hopper carries out the underwater back cover of large-area deep foundation pit
Carry out back cover is set, is had compared with the big hopper of traditional centralized carries out the constructing device of the underwater back cover of large-area deep foundation pit following
Benefit:
1) simple process, easy to operate, difficulty of construction is small.
2) safety is higher: without setting up large-scale back cover platform, climbing without personnel into big bunker.
3) time for setting up and removing large-scale back cover platform is eliminated.
4) back cover is carried out using several pump trucks simultaneously, back cover degree of progress speed is high-efficient.
5) construction cost is low: eliminating the material for setting up back cover platform of aniseed, while it is big also not need processing centralized
Hopper.
6) back cover quality is easier to be guaranteed.
7) operator is reduced, and back cover cost of labor significantly reduces.
Detailed description of the invention
Fig. 1 is the schematic view of facade structure of the utility model embodiment；
Fig. 2 is the planar structure schematic diagram of the utility model embodiment；
1 it is wherein simple back cover platform, 2 be conduit, 3 be small hopper, 4 be pump truck, 5 be foundation pit, 6 be building enclosure, 7 is
Supporting beam, 8 be crossbeam, 9 be stringer, 10 be concrete pump pipe, 11 be underwater bottom concrete.
Specific embodiment
Following non-limiting examples are for illustrating the utility model.
With reference to shown in Fig. 1,2, a kind of constructing device carrying out the underwater back cover of large-area deep foundation pit using small hopper, the construction
Device is made of simple back cover platform 1, conduit 2, small hopper 3 and pump truck 4, and simple back cover platform 1 utilizes 5 building enclosure 6 of foundation pit
It sets up, is made of several groups supporting beam 7, each group supporting beam 7 is made of a pair of beams 8 and several pairs of stringers 9, and wherein this is to cross
Beam 8 is supported across two sides building enclosure 6 by building enclosure 6, and each pair of stringer 9 is fixed on this to the fixed each small powder of support on crossbeam 8
Bucket 3, each small hopper 3 protrude into underwater 5 bottom of foundation pit by a conduit 2, and the feed opening of small 3 connecting conduit 2 of hopper, which is equipped with, to be opened
Close the enclosed mechanism of feed opening, such as doughnut-shaped steel plate；Pump truck 4 is equipped with 3~4, is equipped with 4 as shown in the picture, and pass through coagulation
Native pump line 10 with need the small hopper 3 of pump concrete to be connected as its pump concrete.Alternatively, such as the present embodiment attached drawing institute
Show, each group supporting beam 7 is arranged side by side, several small hoppers 3 is arranged in every group of supporting beam 7, and in outermost two groups of supporting beams 7
More small hoppers 3 are arranged in other group of supporting beam of relative inner 7, and small 3 capacity of hopper is 1 ± 0.2 side.
The construction method of aforementioned constructing device is used to set up an easy small-sized envelope using deep footing groove enclosing structure
Bottom platform arranges several conduits on back cover platform, and one capacity of installation is the small hopper of 1 side or so on every conduit, is taken
The small direct back cover of hopper.
When every conduit back cover, it directly is poured concrete into the small hopper above the conduit using at least 3 pump trucks, it is small
When hopper concrete will be in filled state, cupping carries out first potting pipe construction, and at least 3 pump trucks are ceaselessly into small hopper
Feed supplement, it is ensured that small hopper is in filled state always,, can be with after the completion of first tank until the root conduit tube sealing buried depth is met the requirements
Normally it is poured.Remaining each pipe is carried out according to above method.
Specific steps are as follows:
1) simple back cover platform 1 is set up using 5 building enclosure 6 of foundation pit, installing conduit 2 and small hopper 3, (capacity is 1 side
Left and right, preferably 1 ± 0.2 side), which, which only needs to meet, carries small hopper 3 and the requirement of conduit 2, several small powders
Bucket 3 is fixed on the simple back cover platform 1, and each small hopper 3 protrudes into underwater 5 bottom of foundation pit by a conduit 2；
2) 3~4 pump trucks 4 are arranged according to place situation, it is ensured that each small hopper 3 and its at least 3 pump trucks 4 of conduit 2
It can be fed, be illustrated in figure 24 pump trucks 4 while be fed simultaneously；
3) mixing plant ready-mixed concrete is transported to scene；
4) water proof ball is placed in the conduit 2 of back cover to be carried out, and with enclosed mechanism that small 3 feed opening of hopper is capped；
Etc. 5) concrete for being transported to scene is more than 50 cubic inches, starts 4 pump trucks 4 into the small hopper 3 for wanting back cover conduit 2
Pouring concrete at the same time；
6) when small hopper 3 will be in filled state, crane lifts by crane the enclosed mechanism for quickly pulling out small 3 feed opening of hopper,
Carrying out first potting bottom application work, while 4 feed supplements into small hopper 3 simultaneously of pump truck 4, it is ensured that small hopper 3 is in filled state always,
Until tube sealing is met the requirements all over the body；
7) after first tank is met the requirements, which enters normal casting, carries out regular feed supplement using a pump truck 4；
8) sequence of according to step 4~7 the step of carries out next 2 back cover of conduit construction；
9) simple back cover platform 1, small hopper 3 and conduit 2 are removed after the completion of bottom concrete.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (3)
1. it is a kind of using small hopper carry out the underwater back cover of large-area deep foundation pit constructing device, it is characterised in that the constructing device by
Simple back cover platform, conduit, small hopper and pump truck composition, simple back cover platform is set up using deep footing groove enclosing structure, by several
Group supporting beam is constituted, and each group supporting beam is made of a pair of beams and several pairs of stringers, and wherein this goes along with sb. to guard him crossbeam across two sides
Structure is supported by building enclosure, and each pair of stringer is fixed on this to fixed each small hopper is supported on crossbeam, and each small hopper passes through
One conduit protrudes into underwater bottom of foundation ditch, and the feed opening of small hopper connecting conduit is equipped with the enclosed mechanism of switch feed opening；Pump truck is set
There are 3~4, and by concrete pump pipe and the small hopper of pump concrete is needed to be connected as its pump concrete.
2. carrying out the constructing device of the underwater back cover of large-area deep foundation pit using small hopper as described in claim 1, feature exists
In: each group supporting beam is arranged side by side, several small hoppers are arranged in every group of supporting beam, and opposite in outermost two groups of supporting beams
More small hoppers are arranged in other group of inside supporting beam.
3. carrying out the constructing device of the underwater back cover of large-area deep foundation pit using small hopper as described in claim 1, feature exists
In: small hopper capacity is 1 ± 0.2 side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820336703.5U CN208201877U (en) | 2018-03-12 | 2018-03-12 | The constructing device of the underwater back cover of large-area deep foundation pit is carried out using small hopper |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820336703.5U CN208201877U (en) | 2018-03-12 | 2018-03-12 | The constructing device of the underwater back cover of large-area deep foundation pit is carried out using small hopper |
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| CN208201877U true CN208201877U (en) | 2018-12-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108222009A (en) * | 2018-03-12 | 2018-06-29 | 中交二航局成都城市建设工程有限公司 | The construction method and device of the underwater back cover of large-area deep foundation pit are carried out using small hopper |
-
2018
- 2018-03-12 CN CN201820336703.5U patent/CN208201877U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108222009A (en) * | 2018-03-12 | 2018-06-29 | 中交二航局成都城市建设工程有限公司 | The construction method and device of the underwater back cover of large-area deep foundation pit are carried out using small hopper |
| CN108222009B (en) * | 2018-03-12 | 2024-01-09 | 中交二航局(成都)建设工程有限公司 | Construction method and device for carrying out underwater bottom sealing on large-area deep foundation pit by adopting small hopper |
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