CN204435389U - A kind of assembled lattice unit for pattern foundation pit supporting structure - Google Patents
A kind of assembled lattice unit for pattern foundation pit supporting structure Download PDFInfo
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- CN204435389U CN204435389U CN201520003595.6U CN201520003595U CN204435389U CN 204435389 U CN204435389 U CN 204435389U CN 201520003595 U CN201520003595 U CN 201520003595U CN 204435389 U CN204435389 U CN 204435389U
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- lattice unit
- anchor cable
- foundation pit
- supporting structure
- pit supporting
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- 230000008093 supporting effect Effects 0.000 title claims abstract description 30
- 238000010276 construction Methods 0.000 abstract description 13
- 230000008901 benefit Effects 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000004927 clay Substances 0.000 abstract 1
- 238000005265 energy consumption Methods 0.000 abstract 1
- 238000004064 recycling Methods 0.000 abstract 1
- 239000004575 stone Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 16
- 238000009412 basement excavation Methods 0.000 description 10
- 238000009434 installation Methods 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 238000004873 anchoring Methods 0.000 description 4
- 230000001413 cellular effect Effects 0.000 description 3
- 239000004567 concrete Substances 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
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Abstract
The utility model relates to a kind of assembled lattice unit for pattern foundation pit supporting structure, it is characterized in that: comprise the lattice unit that several are connected by syndeton, described lattice unit comprises intermediolateral column and is located at the beam on intermediolateral column surrounding side, described beam is evenly distributed, intermediolateral column is provided with anchor cable hole, and connect the Anchor Cable Anchorage on foundation ditch by anchor cable hole, connected by the syndeton in beam end between two described lattice unit.Described syndeton is made up of the set bolt and junction plate being located at beam end, junction plate has the through hole matched with set bolt.The described assembled lattice unit for pattern foundation pit supporting structure can adapt to the stratum such as stiff clay, mud stone preferably, and its supporting effect is reliable; Construction safety is quick, need not big machinery, has the dismountable advantage with recycling and reusing; Production have industrialization, standardized feature.The utility model can reduce energy consumption, improves labor productivity, promotes environmental protection.
Description
Technical field
The utility model relates to geotechnical engineering Base hole supporting technology field.
Background technology
Along with the develop rapidly of urban economy, the high level in city, super highrise building are as emerged rapidly in large numbersBamboo shoots after a spring rain, more and more, urban space has become more and more crowded, and such as basement in high rise building, subway and track traffic, underground store and the underground building such as shopping street, civil air defense works are built in a large number, and towards the large degree of depth, large area future development, surrounding enviroment are more complicated, have high input, speed of application is slow, and the difficulty of foundation pit excavation and bracing is increasing.
The maximum pattern foundation pit supporting structure form of current application has: put slope excavation, steel sheet pile supporting, soil-nail wall support, the supporting of colonnade formula castinplace pile campshed, diaphragm wall supporting, inner support or draw anchor supporting, freezing process, contrary sequence method, combined supporting etc.These support forms are cast-in-place concrete, and because construction plant is narrow, cast-in-place concrete forms intensity needs the regular hour, and wayward quality, simultaneously as temporary support device, its cost is higher.
Utility model content
The purpose of this utility model is assembled lattice to be applied on foundation pit supporting project, provides a kind of safe and reliable to pattern foundation pit supporting structure, constructs simple and quick, the dismountable assembled lattice unit for pattern foundation pit supporting structure with repeating to recycle.
The technical solution of the utility model is:
A kind of assembled lattice unit for pattern foundation pit supporting structure, comprise the lattice unit that several are connected by syndeton, described lattice unit comprises intermediolateral column and is located at four beams on intermediolateral column surrounding side, described beam is evenly distributed, intermediolateral column is provided with anchor cable hole, and connecting the Anchor Cable Anchorage on foundation ditch by anchor cable hole, described syndeton is located at the end of beam.Connected by the syndeton in beam end between two described lattice unit.Described assembling refers to that this lattice unit makes at precasting yard in advance, installs through being transported to job site.
Preferentially, described syndeton is made up of the set bolt and junction plate being located at beam end, junction plate has the through hole matched with set bolt, and described connector is the steel connector with band hole, by the high-strength bolt compound action of steel connector and beam end, formed and connect.
Preferentially, the upper end face of described beam is ramp structure, and ramp structure extends to the end of beam from intermediolateral column.Adopt ramp structure can reduce being suitable for of material, reduce construction costs.
Preferentially, the beam of described lattice unit is provided with several Heave Heres.Heave Here is set and can carries out lifting work to lattice unit quickly and easily, increase work efficiency.
Preferentially, described anchor cable hole is provided with the backing plate matched.The lifting surface area that backing plate can increase anchor cable and contact surface is set, avoids stress to concentrate and stress surface is damaged.
Further, the step of the preparation method of described lattice unit is as follows:
(1) the good reinforcing cage with described lattice units match of colligation;
(2) described reinforcing cage is hung in the template of building lattice unit;
(3) template of building lattice unit is corrected;
(4) concreting;
(5) form removal.
Further, according to technique scheme, provide a kind of mounting method of described a kind of assembled lattice unit for pattern foundation pit supporting structure, its step is as follows:
Step one: cutting depth to the foundation ditch of length of described lattice unit, as first floor;
Step 2: install first floor first lattice unit, installs Anchor Cable Anchorage by after the anchor cable hole of described lattice unit and the hole bit alignment bored on foundation ditch, and carries out pre-stretch-draw;
Step 3: install first floor second lattice unit, by the anchor cable hole of described lattice unit and the hole bit alignment bored on foundation ditch, by syndeton, adjacent beam between first good to itself and step 2 anchoring lattice unit is connected, then its Anchor Cable Anchorage is installed and carries out pre-stretch-draw;
Step 4: first floor second the lattice cellular installation method repeating step 3 installs the 3rd the lattice unit be adjacent, repeat the mounting method of above lattice unit, after installing described lattice unit in a row around foundation ditch, carry out two times tensioning to design load to whole anchor cables, first floor lattice unit so far installs end;
Step 5: continue the length of the excavation soil body degree of depth to described lattice unit, as the second layer;
Step 6: install the second layer first lattice unit, by the anchor cable hole of described lattice unit and the hole bit alignment bored on foundation ditch, by syndeton, beam adjacent between lattice unit and the lattice unit of the first floor installed in step 2 ~ step 4 is connected, then its Anchor Cable Anchorage is installed and carries out pre-stretch-draw;
Step 7: install the second layer second lattice unit, by the anchor cable hole of described lattice unit and the hole bit alignment bored on foundation ditch, by syndeton, beam adjacent between the second layer first the lattice unit installed in the lattice unit of lattice unit and the first floor installed in step 2 ~ step 4 and step 6 is connected, then its Anchor Cable Anchorage is installed and carries out pre-stretch-draw
Step 8: the second layer second the lattice cellular installation method repeating step 7 installs the 3rd the lattice unit be adjacent, repeat the mounting method of above lattice unit, after installing described lattice unit in a row around foundation ditch, carry out two times tensioning to design load to whole anchor cables, second layer lattice unit so far installs end;
Step 9: continue to install, until be mounted to bottom foundation ditch according to the order of above-mentioned excavation and lattice cellular installation method.
Compared to prior art, the beneficial effects of the utility model are as follows:
Because ubiquity construction plant in the Base hole supporting technology applied at present is narrow, cast-in-place concrete forms intensity needs the regular hour, and wayward quality, simultaneously as temporary support device, the problems such as its cost is higher, take assembled lattice unit, deficiency of the prior art can be overcome.
Take assembled lattice under the safety ensured in excavation of foundation pit and Underground Construction process and stable prerequisite, technical scaleization can produce in precasting yard, again because the construction speed that makes easy for installation is accelerated, considerably improve engineering construction efficiency.Assembled lattice has detachable and can repeat the feature recycled, under the safety ensured in excavation of foundation pit and Underground Construction process and stable prerequisite, both effectively reduces engineering construction cost, simultaneously also can protection of the environment well.
Research and probe is constructed simple and quick a kind of assembled lattice unit for pattern foundation pit supporting structure, can adapt to site condition preferably, safe and reliable to pattern foundation pit supporting structure, and easy construction is quick, has the dismountable characteristic with repeating to recycle; Production have industrialization, standardized feature.The utility model can reduce the consumption of energy resources, improves labor productivity, promotes environmental protection, has significant social benefit and wide application prospect.
Accompanying drawing explanation
Fig. 1 is a kind of assembled lattice cell schematics for pattern foundation pit supporting structure described in the utility model.
Fig. 2 is lattice cell schematics described in the utility model.
Fig. 3 is the A-A generalized section in Fig. 2.
Fig. 4 is the B-B generalized section in Fig. 2.
Fig. 5 is junction plate schematic diagram described in the utility model.
Fig. 6 is backing plate schematic diagram described in the utility model.
Fig. 7 is the first floor scheme of installation that lattice unit described in the utility model is connected to form assembled lattice foundation pit support device.
Fig. 8 is the second layer scheme of installation that lattice unit described in the utility model is connected to form assembled lattice foundation pit support device.
Fig. 9 is the second layer scheme of installation that lattice unit described in the utility model is connected to form assembled lattice foundation pit support device.
Figure 10 is the schematic diagram of a kind of assembled lattice unit anchoring foundation ditch for pattern foundation pit supporting structure described in the utility model.
Wherein: 1-lattice unit, 2-intermediolateral column, 3-beam, 4-anchor cable hole, 5-backing plate, 6-set bolt, 7-junction plate, 8-through hole, 9-Heave Here, 10-free section of anchor cable, 11-anchorage cable anchoring section, 12-Anchor Cable Anchorage
Detailed description of the invention
Below in conjunction with accompanying drawing, the technical solution of the utility model is described further.
Fig. 1-Fig. 7 shows a kind of assembled lattice unit for pattern foundation pit supporting structure of an embodiment, comprise the lattice unit 1 that several are connected by syndeton, described lattice unit 1 comprises the intermediolateral column 2 of reinforced concrete structure and is located at the beam 3 of intermediolateral column side, described beam is evenly distributed, intermediolateral column is provided with anchor cable hole 4, and connects the Anchor Cable Anchorage on foundation ditch by anchor cable hole 4; Described syndeton is located at the end of beam, syndeton between each structure unit is made up of the set bolt 6 and junction plate 7 being located at beam end, junction plate there is the through hole 8 matched with set bolt, connector is the steel connector with band hole, the set bolt of steel connector and beam end is connected, forms the connection of lattice unit.Set bolt 6 is vertical relation with the bottom surface of lattice unit 1, and beam 3, lattice unit 1 makes at precasting yard in advance, installs through being transported to job site.The upper end face of described beam 3 is ramp structure, and inclined-plane connects the upper surface of intermediolateral column and the front end face of beam.The beam of described lattice unit is provided with several Heave Heres 9, described anchor cable hole 4 is provided with the backing plate 5 matched.
During the construction of Fig. 7-Fig. 8 displaying scene, lattice unit is connected to form the mounting method of assembled lattice foundation pit support device.
According to designing requirement, first prefabricated cross lattice unit 1 in precasting yard.Excavation pit at the construction field (site), adopt layer and section excavation, the length of cutting depth to lattice unit 1, this layer is first floor.Lattice shipped prefabricated in precasting yard is on-the-spot to foundation ditch, and lattice unit is installed at the scene, and mounting method is that layering is installed.The step of installing is as follows: bored the porose position of anchoring at first floor according to designing requirement, then utilize crane lifting lattice unit to work plane, first by the anchor cable hole 4 of one of them lattice unit and hole bit alignment, place lattice unit, install Anchor Cable Anchorage 12 again, and pre-stretch-draw is carried out to it.And then the lattice unit on its side is installed, by anchor cable hole 4 and the hole bit alignment of lattice unit, place lattice unit, as shown in Figure 7 tie-beam 3, then install Anchor Cable Anchorage 12, and pre-stretch-draw is carried out to it.Then install lattice unit around foundation pit walls after the same method successively, after install row's lattice unit around foundation ditch, then carry out two times tensioning to whole anchor cables, and be stretched to design load, free section of anchor cable 10 temporarily can not be cut.The assembled lattice unit that first floor is used for pattern foundation pit supporting structure so far installs end.
Next, continue the excavation soil body, the length of cutting depth to lattice unit 1, this layer is called the second layer.After having excavated the second layer, again carry out the installation of lattice unit.The step of installing is as follows: utilize crane lifting lattice unit to work plane, first by the anchor cable hole 4 of a lattice unit and hole bit alignment, place lattice unit, first connect with the beam of lattice unit corresponding above as shown in Figure 8, install Anchor Cable Anchorage 12 again, and pre-stretch-draw is carried out to it.Next lattice unit is installed again, by the anchor cable hole 4 of this lattice unit and hole bit alignment, place lattice unit, the beam 3 of this element lattice unit adjacent with side with the beam 3 of lattice unit corresponding above is respectively connected as shown in Figure 9, install Anchor Cable Anchorage 12 again, and pre-stretch-draw is carried out to it.Then install lattice unit around foundation pit walls after the same method successively, after install row's lattice unit around foundation ditch, then carry out two times tensioning to whole anchor cables, and be stretched to design load, free section of anchor cable 10 temporarily can not be cut.The assembled lattice unit that the second layer is used for pattern foundation pit supporting structure so far installs end.
Then, continue to carry out engineering construction, until be mounted to bottom foundation ditch according to the order of above-mentioned excavation and the mounting method of second layer lattice unit.
The description of above-described embodiment is convenient for people to understand and application the utility model.Protection domain of the present utility model does not describe by embodiment and limited.Anyone improvement made the utility model and amendment all should be considered as within the utility model protection domain.
Claims (5)
1. the assembled lattice unit for pattern foundation pit supporting structure, it is characterized in that: comprise the lattice unit (1) that several are connected by syndeton, described lattice unit (1) comprises intermediolateral column (2) and is located at four beams (3) on intermediolateral column surrounding side, described beam (3) is evenly distributed, intermediolateral column (2) is provided with anchor cable hole (4), and connect the Anchor Cable Anchorage (12) on foundation ditch by anchor cable hole (4), connected by the syndeton on beam (3) end between two described lattice unit (1).
2. a kind of assembled lattice unit for pattern foundation pit supporting structure according to claim 1, it is characterized in that: described syndeton is made up of the set bolt (6) and junction plate (7) being located at beam end, junction plate (7) has the through hole (8) matched with set bolt (6).
3. a kind of assembled lattice unit for pattern foundation pit supporting structure according to claim 1, is characterized in that: the upper end face of described beam (3) is ramp structure, and ramp structure extends to the end of beam from intermediolateral column.
4. a kind of assembled lattice unit for pattern foundation pit supporting structure according to claim 1, is characterized in that: the beam (3) of described lattice unit is provided with several Heave Heres (9).
5. a kind of assembled lattice unit for pattern foundation pit supporting structure according to claim 1, is characterized in that: described anchor cable hole (4) is provided with the backing plate (5) matched.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520003595.6U CN204435389U (en) | 2015-01-05 | 2015-01-05 | A kind of assembled lattice unit for pattern foundation pit supporting structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520003595.6U CN204435389U (en) | 2015-01-05 | 2015-01-05 | A kind of assembled lattice unit for pattern foundation pit supporting structure |
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| CN201520003595.6U Expired - Fee Related CN204435389U (en) | 2015-01-05 | 2015-01-05 | A kind of assembled lattice unit for pattern foundation pit supporting structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104532856A (en) * | 2015-01-05 | 2015-04-22 | 广西瑞宇建筑科技有限公司 | Fabricated lattice unit for foundation pit supporting and installation method |
| CN111236243A (en) * | 2020-01-08 | 2020-06-05 | 中国十七冶集团有限公司 | Prefabricated assembly type foundation pit slope protection structure and implementation method |
-
2015
- 2015-01-05 CN CN201520003595.6U patent/CN204435389U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104532856A (en) * | 2015-01-05 | 2015-04-22 | 广西瑞宇建筑科技有限公司 | Fabricated lattice unit for foundation pit supporting and installation method |
| CN111236243A (en) * | 2020-01-08 | 2020-06-05 | 中国十七冶集团有限公司 | Prefabricated assembly type foundation pit slope protection structure and implementation method |
| CN111236243B (en) * | 2020-01-08 | 2021-11-05 | 中国十七冶集团有限公司 | Prefabricated assembly type foundation pit slope protection structure and implementation method |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Fabricated lattice unit for foundation pit supporting and installation method Effective date of registration: 20160927 Granted publication date: 20150701 Pledgee: China Co. truction Bank Corp Nanning hi tech sub branch Pledgor: GUANGXI RUIYU BUILDING TECHNOLOGY Co.,Ltd. Registration number: 2016990000832 |
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| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20180523 Granted publication date: 20150701 Pledgee: China Co. truction Bank Corp Nanning hi tech sub branch Pledgor: GUANGXI RUIYU BUILDING TECHNOLOGY Co.,Ltd. Registration number: 2016990000832 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Fabricated lattice unit for foundation pit supporting and installation method Effective date of registration: 20180806 Granted publication date: 20150701 Pledgee: GF bank Limited by Share Ltd. Nanning branch Pledgor: GUANGXI RUIYU BUILDING TECHNOLOGY Co.,Ltd. Registration number: 2018450000021 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20190906 Granted publication date: 20150701 Pledgee: GF bank Limited by Share Ltd. Nanning branch Pledgor: GUANGXI RUIYU BUILDING TECHNOLOGY Co.,Ltd. Registration number: 2018450000021 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Fabricated lattice unit for foundation pit supporting and installation method Effective date of registration: 20190912 Granted publication date: 20150701 Pledgee: GF bank Limited by Share Ltd. Nanning branch Pledgor: GUANGXI RUIYU BUILDING TECHNOLOGY Co.,Ltd. Registration number: Y2019450000012 |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150701 Termination date: 20220105 |