CN201512797U - Swirl pool foundation pit safeguard structure in soil and rock combined regions - Google Patents
Swirl pool foundation pit safeguard structure in soil and rock combined regions Download PDFInfo
- Publication number
- CN201512797U CN201512797U CN2009202090882U CN200920209088U CN201512797U CN 201512797 U CN201512797 U CN 201512797U CN 2009202090882 U CN2009202090882 U CN 2009202090882U CN 200920209088 U CN200920209088 U CN 200920209088U CN 201512797 U CN201512797 U CN 201512797U
- Authority
- CN
- China
- Prior art keywords
- soil
- foundation pit
- safeguard structure
- rock combined
- foundation ditch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Foundations (AREA)
Abstract
The utility model relates to the construction in soil and rock combined regions, in particular to a swirl pool foundation pit in soil and rock combined regions. A swirl pool foundation pit safeguard structure in soil and rock combined regions comprises drilling hole caisson piles arranged on the peripheral upper portion of the foundation pit, a cap beam, three annular beams and a fine mesh steel plate net arranged between the perimeter drilling hole caisson piles for entire covering and fixed through anchorage mode, wherein the cap beam and the three annular beams are positioned between the drilling hole caisson piles. The swirl pool foundation pit safeguard structure in soil and rock combined region adopts simple tools to resolve the safeguard problem of the swirl pool foundation pits in the soil and rock combined regions, the cost is cheap, and the construction efficiency is high.
Description
Technical field
The utility model relates to Tu Yan constructs in conjunction with the region, relates in particular to the Whirlwind tank foundation ditch of a kind of Tu Yan in conjunction with the region.
Background technology
Along with the develop rapidly that Chinese Urbanization is built, people are more and more to the development and utilization in underground space, and the base pit engineering in the Industrial and Civil Engineering develops towards bigger darker direction, and the foundation ditch of cutting depth about 30m is of common occurrence.The cutting depth of the hot rolling of the modern large-scale iron and steel enterprise that has and the Whirlwind tank of continuous casting project even reached 35m.This foundation ditch is generally done circular, makes full use of circular arching, and the stressed of structure more become rationally, and therefore under general formation condition, this foundation ditch adopts diaphragm wall as supporting and protection structure usually.And in some special area, its soil property is very special, top is backfill, the bosom can reach ten several meters, and be hard rock below the backfill, in conjunction with under the formation condition, the method for its supporting design and construction all has different significantly with the stratum that the intensity index of the soil body is more or less the same at this Tu Yan.
The present situation of design aspect
From engineering practice, the application of super dark circular foundation ditch is more and more wider, more and more, but is not very perfect to this buried theory analysis and construction technology in underground circular deep foundation pit support at present.From design aspect, general equivalent beam method, Tai Shajifa, the man of shoulder nation method, spring beam method, the elastoplasticity method etc. of adopting design in the traditional design.These method calculation assumptions have obvious defects, and result of calculation and actual detected result have bigger deviation.And domestic and international also neither one is specifically related to the standard of circular pattern foundation pit supporting structure.
Take a broad view of at present both at home and abroad method and achievement to circular deep foundation ditch design, research, the researcher is mainly from being studied by improved simplified design of traditional design method and finite element analysis two aspects, and obtained certain achievement.
From improved traditional design method, be to take into account by three-dimensional effect circular supporting and protection structure, be the equivalence of hoop rigidity planar support, carry out computational analysis again.
From the finite element analysis aspect, mainly be to adopt ANSYS, ABAQUS, a collection of finite element softwares such as ADINA, FLAC3D that circular foundation ditch is carried out two-dimensional finite unit or three-dimensional finite element analysis research.By above-mentioned finite element analysis software foundation ditch has been carried out Study on Three Dimensional Numerical Simulation, can take into full account the order of foundation pit dewatering and actual excavation construction thereof, the space-load feature and the distortion of simulation and reflection supporting and protection structure body, the displacement of surrounding soil, sedimentation and dependency relation etc.
The present situation of construction aspect
From the construction aspect, in Whirlwind tank construction in the past, foundation ditch generally all is to adopt diaphragm wall to go along with sb. to guard him, excavation of foundation pit can adopt standard machinery normally to excavate, structure construction adopts contrary sequence method to construct earlier to back cover, is just doing construction again to binding, and has had a lot of construction experiences to use for reference.Regional preferably in northern soil property, adopt the Whirlwind tank of open caisson method construction also often to have.
But the special region of Tu Yan combination as described above, Whirlwind tank is that foundation pit enclosure structure or excavation method or agent structure all can't be continued to use existing structure owing to the geology reason.
Summary of the invention
The utility model is intended to address the above problem, and a kind of Tu Yan is provided the Whirlwind tank foundation ditch safeguard structure in conjunction with the region.The utility model has solved the protection of Tu Yan in conjunction with region Whirlwind tank foundation ditch, and is with low cost, the efficiency of construction height.
The utility model is achieved in that
A kind of Tu Yan is in conjunction with the Whirlwind tank foundation ditch safeguard structure of region, and it comprises:
The bored pile on top around foundation ditch;
One cap between the described brill castinplace pile adds three road annular girders; With
Be located at the integral body of going along with sb. to guard him between the castinplace pile and cover the also close order expanded metal lath of anchoring.
Described Tu Yan is in conjunction with the Whirlwind tank foundation ditch safeguard structure of region, and described bored pile gos deep into lithosphere 800-1200mm.
Bracing of foundation pit of the present utility model adopts is that the punching castinplace pile adds and supports ring beam and go along with sb. to guard him, and going along with sb. to guard him the degree of depth is foundation depth half (will be in naked dewiness attitude when promptly excavating).Fender post leaves the space between stake, go along with sb. to guard him to belong to semi-enclosed and go along with sb. to guard him; Especially at mountain construction super large, ultra-deep foundation pit, large-scale construction of diaphragm wall equipment turnover field is difficulty relatively, and to site requirements than higher, drill-pouring equipment can be avoided the problems referred to above.Cover between the castinplace pile and be easier to the close order expanded metal lath ratio of anchoring, can be in the soil excavation process coordinative construction, therefore can improve efficiency of construction, reduce construction cost.
Description of drawings:
Fig. 1 is a partial schematic diagram of the present utility model.
The specific embodiment
A kind of Tu Yan of the utility model is in conjunction with the Whirlwind tank foundation ditch protection construction method of region, and it comprises: a kind of Tu Yan is in conjunction with the Whirlwind tank foundation ditch safeguard structure of region, and it comprises: the bored pile 1 on top around foundation ditch; Described bored pile gos deep into lithosphere 800-1200mm (failing among the figure to show), and one cap 4 between the described brill castinplace pile adds three road annular girders 3 (only showing together among the figure); And be located at that the integral body gone along with sb. to guard him between the castinplace pile 1 covers and the close order expanded metal lath 2 of anchoring.
The utility model is that ramus superficialis protects deep excavation foundation ditch method for designing, is guaranteeing to have reached optimal techno-economic effect under the prerequisite of engineering safety.
Claims (2)
1. a Tu Yan is characterized in that in conjunction with the Whirlwind tank foundation ditch safeguard structure of region it comprises:
The bored pile on top around foundation ditch;
One cap between the described brill castinplace pile adds three road annular girders; With
Be located at the integral body of going along with sb. to guard him between the castinplace pile and cover the also close order expanded metal lath of anchoring.
2. Tu Yan according to claim 1 is characterized in that in conjunction with the Whirlwind tank foundation ditch safeguard structure of region described bored pile gos deep into lithosphere 800-1200mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202090882U CN201512797U (en) | 2009-09-03 | 2009-09-03 | Swirl pool foundation pit safeguard structure in soil and rock combined regions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202090882U CN201512797U (en) | 2009-09-03 | 2009-09-03 | Swirl pool foundation pit safeguard structure in soil and rock combined regions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201512797U true CN201512797U (en) | 2010-06-23 |
Family
ID=42484203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202090882U Expired - Fee Related CN201512797U (en) | 2009-09-03 | 2009-09-03 | Swirl pool foundation pit safeguard structure in soil and rock combined regions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201512797U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101985836A (en) * | 2010-09-10 | 2011-03-16 | 广东省基础工程公司 | Processing method of pile-wall type deep base pit supporting structure in case of encountering large boulder stone |
| CN102733408A (en) * | 2011-04-08 | 2012-10-17 | 新疆电力设计院 | Method for manufacturing low-disturbance melt-resistant frozen soil foundation of transmission tower |
| CN103046556A (en) * | 2011-10-17 | 2013-04-17 | 五冶集团上海有限公司 | Inside-support-free ring-shaped enclosure structure and manufacturing method thereof |
-
2009
- 2009-09-03 CN CN2009202090882U patent/CN201512797U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101985836A (en) * | 2010-09-10 | 2011-03-16 | 广东省基础工程公司 | Processing method of pile-wall type deep base pit supporting structure in case of encountering large boulder stone |
| CN101985836B (en) * | 2010-09-10 | 2012-03-28 | 广东省基础工程公司 | Processing method of pile-wall type deep base pit supporting structure in case of encountering large boulder stone |
| CN102733408A (en) * | 2011-04-08 | 2012-10-17 | 新疆电力设计院 | Method for manufacturing low-disturbance melt-resistant frozen soil foundation of transmission tower |
| CN103046556A (en) * | 2011-10-17 | 2013-04-17 | 五冶集团上海有限公司 | Inside-support-free ring-shaped enclosure structure and manufacturing method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102002952B (en) | Spiral flow tank pit protection construction method for soil and rock combined region | |
| CN104947682A (en) | Foundation pit support construction method and device thereof | |
| CN203145038U (en) | Latticed column type tower crane foundation | |
| CN101775807B (en) | Structure for supporting deep foundation pit of soft soil foundation | |
| CN205776249U (en) | A kind of combined inner supporting structure | |
| CN102434717B (en) | Construction method of joist steel pipe-jacking work pit | |
| CN110374112B (en) | Deep foundation pit supporting system for weak soil field and construction method thereof | |
| CN103255771B (en) | Method for excavating super-deep foundation pit engineering piles in graded mode and graded composite supporting of supporting piles | |
| CN202559361U (en) | Precast high strength concrete thin-wall steel pipe pile foundation pit supporting structure | |
| CN102720381A (en) | Elevator-type underground stereo garage shaft and construction method thereof | |
| CN201512797U (en) | Swirl pool foundation pit safeguard structure in soil and rock combined regions | |
| CN104131565A (en) | Construction method of using down-top method for excavating earthworks in top-down construction | |
| CN201459756U (en) | Hanging-type construction ceiling coil vertical shaft | |
| CN203160254U (en) | Pit support structure | |
| CN216041201U (en) | Earlier prop and dig double-deck diagonal bracing foundation ditch enclosure system afterwards | |
| CN208441084U (en) | Coercion underground continuous wall | |
| CN202144598U (en) | Sunk type underground structure | |
| CN212294747U (en) | Pipe jacking well structure | |
| CN104131570A (en) | Steel box enclosure device for foundation pit construction and construction method thereof | |
| CN209941754U (en) | High-voltage power pipe culvert in-situ protection structure | |
| CN204456131U (en) | A kind of structural floor that utilizes is as the structural system of horizontal support | |
| CN215252932U (en) | Deep foundation pit PC steel pipe combination Larsen steel sheet pile double row pile supporting system | |
| CN102605801A (en) | Suspension semi-reverse-construction method for underground circular water tank | |
| CN109339081A (en) | One kind having bottom plate open caisson mechanism and its construction method | |
| CN210712864U (en) | Deep foundation pit supporting system of Larsen steel sheet pile and cement mixing pile for soft soil field |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHINA MCC20 GROUP CORP., LTD. Free format text: FORMER NAME: CHINA 20TH METALLURGICAL CONSTRUCTION CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 201900 Shanghai city Baoshan District Pangu Road No. 777 Patentee after: China Twenty Metallurgical Group Co., Ltd. Address before: 201900 Shanghai city Baoshan District Pangu Road No. 777 Patentee before: China MCC20 Construction Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100623 Termination date: 20140903 |
|
| EXPY | Termination of patent right or utility model |