CN104947682A - Foundation pit support construction method and device thereof - Google Patents
Foundation pit support construction method and device thereof Download PDFInfo
- Publication number
- CN104947682A CN104947682A CN201510225860.XA CN201510225860A CN104947682A CN 104947682 A CN104947682 A CN 104947682A CN 201510225860 A CN201510225860 A CN 201510225860A CN 104947682 A CN104947682 A CN 104947682A
- Authority
- CN
- China
- Prior art keywords
- steel
- construction
- bracket
- support
- base plate
- 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.)
- Pending
Links
Landscapes
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The invention relates to a foundation pit support construction method and a device thereof and belongs to the technical field of building structure construction. The method includes: performing basin excavation in a central area, constructing a basement foundation floor and structure of the central area, constructing a steel support inwardly for a peripheral supporting pile to support the basement foundation floor of the central area, excavating earthwork of the area, constructing the basement foundation floor and structure of the area, and demolishing the steel structure support. The device comprises a top beam bracket and a floor bracket arranged on the peripheral supporting pile and double H-beams arranged between the top beam bracket and the floor bracket. The foundation pit support construction method and the device are applicable to non-circular large-area irregular foundation pit construction, the constructed supporting pile and the underground structure (the pile and the basement floor) are combined to form an in-pit 'band' support structure parallel to a support, the defect that the conventional in-concrete support system is high in supporting cost and long in construction cycle is avoided effectively, cost of the support system is lowered, and the method and the device are suitable for large-area deep foundation pits of one-floor to two-floor basements.
Description
Technical field
The present invention relates to a kind of pattern foundation pit supporting structure steel inner support construction method, belong to building structure construction technical field, be particularly useful for periphery and constructed space enclosing structure and need the large-area deep foundation pit engineering of inner support.
Background technology
Pattern foundation pit supporting structure is the safety for ensureing Underground Construction and foundation ditch surrounding enviroment, and what adopt foundation pit side-wall and surrounding enviroment props up gear, reinforcing and safeguard measure.Common Foundation Pit mainly contains campshed supporting, diaphragm wall supporting, cement retaining wall, steel sheet pile, soil nail wall, internal support of foundation pit or its two or more combination.
For traditional Base hole supporting technology, bad for foundation ditch soil property, excavation of foundation pit is deep, when particularly foundation ditch planar dimension is larger, if according to common concrete inner support form, supporting measure cost is higher, and construction period is long, and the mode of inner support can make foundation ditch inside close and numerous, is inconvenient to construct.Such as application publication number is that the Chinese invention patent application of CN101892667 discloses a kind of foundation pit support device and construction method, combine both comprehensively have employed in SMW engineering method pile body system, inner support system, concrete revetment system and soil nail wall bank protection system or more than both, both be applicable to the supporting of large-scale excavation, also effectively reduce cost and the cost of pattern foundation pit supporting structure simultaneously.But have at present in the foundation pit supporting construction body of inner support not to be applicable to namely meeting and support requirement, meet the support system of open large area basin excavation simultaneously.
Summary of the invention
The object of the invention is to overcome above-mentioned technical problem, provide a kind of and be applicable to large-scale excavation supporting, be applicable to cheat outer soil condition poor, foundation ditch shape is irregular polygon, and within cutting depth 6 meters, area is greater than 10,000 m
2large Foundation Pit, effectively reduces construction cost, the cost of pattern foundation pit supporting structure and base pit engineering cost.
Above-mentioned technical purpose of the present invention is achieved by the following technical programs:
A kind of base pit stand construction, is applicable to the large-scale excavation supporting of foundation ditch periphery construction supporting stake, it is characterized in that, adopt fender post, comprehensive utilization technique that reserved soil combines with basement floor constructions, and Specific construction step is as follows:
(1) central area adopts the balanced basin excavation of Sub-region and hierarchical, adopts reserved earthwork formula outwards to advance layer by layer;
(2) central area basement sole plate and structure construction;
(3) after central area basement sole plate and structure construction complete, at the inside construction steel support of periphery soldier pile, be supported on the basement sole plate of central area;
(4) this regional earthwork is excavated;
(5) to construct this region basement sole plate and structure;
(6) after basement sole plate concrete strength reaches requirement, steel structure support is removed.
Bracing members described in step 3 is set to twice H profile steel and supports, and the level interval between described twice H profile steel supports is 9m.
In step 3 before construction steel support, first spliced according to dead size length in foundation ditch by bracing members, then adopt two suspension centres to hang method, integral hoisting puts in place, fills described bracing members neutral, and strike closely knit after being in place with bquster.
After bracing members in described step 3 has been constructed, to support and gap palpus fine-stone concrete between waist rail and bracket is embedding completely ensures that end face is all stressed.
Two bors d's oeuveres H profile steel Construction of Supporting in described step 3 and this regional earthwork of excavation in described step 4 hocket.
Two bors d's oeuveres H profile steel Construction of Supporting in described step 3 and the basement sole plate in step 5 and structure construction hocket.
A kind of foundation pit support device carrying out supporting according to above-mentioned base pit stand construction, described periphery soldier pile top end is provided with hat beam bracket, below described hat beam bracket, be provided with steel near top end enclose purlin, basement sole plate end face arranges base plate bracket, and base plate bracket anchors into base plate.In soldier pile interpolation Two bors d's oeuveres H profile steel, in pile body, the slotting shaped steel length of institute is equal; Wherein a Two bors d's oeuveres H profile steel one end is supported on steel and encloses on purlin, and the other end is supported on base plate bracket; Another Two bors d's oeuveres H profile steel one end is supported on hat beam bracket, and the other end is supported on base plate bracket.
As preferably, described hat beam bracket meet the oblique pre-embedded steel slab of pitted surface and steel mesh reinforcement, perpendicular to described steel plate, H profile steel is set.
As preferably, the described base plate bracket back of the body oblique pre-embedded steel slab of pitted surface and steel mesh reinforcement, arrange H profile steel perpendicular to described steel plate.
As preferably, described base plate bracket back of the body pitted surface comprises vertical base plate section perpendicular to described basement sole plate and the oblique linkage section that be connected oblique with described vertical base plate section, and described vertical base plate section and oblique linkage section are all vertically installed with H profile steel.
In sum, the base pit stand construction described in the present invention is applicable to space enclosing structure and adds hole inner support foundation pit supporting system, is greater than 10,000 m
2the construction of large-area deep foundation pit engineering, effectively prevent conventional concrete inner support system support cost high, the shortcoming of long construction period, and the cost reducing support system, be suitable for the engineering of the layering of periphery soil property and place groundwater condition complexity.
Accompanying drawing explanation
Fig. 1 is the structural representation of foundation pit support device;
Fig. 2 is the enlarged diagram of hat beam bracket;
Fig. 3 is the enlarged diagram of base plate bracket;
Fig. 4-Fig. 8 is the Specific construction block diagram in embodiment in step one and step 2;
In figure, 1, periphery soldier pile; 2, beam bracket is preced with; 3, base plate bracket; 4, steel encloses purlin; 5, basement sole plate; 6, Two bors d's oeuveres H profile steel; 7, steel plate; 8, steel mesh reinforcement; 9, H profile steel; 10, basal plane; 11, oblique structure body one; 12, oblique structure body two.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail.
The present invention one typical case implements engineering: engineering block area 1.4 ten thousand side, building area 1.03 ten thousand side, foundation ditch Zhou Changyue 350 meters, containing soldier pile part 270 meters, soil excavation 20,000 cubes, soil property is based on sand, specifically be divided into 6 layers, the project features of foundation soil layering is from top to bottom as follows:
Floor height is 3.8 meters-6.0 meters, and base form is pile-raft foundation, plank thickness 400 millimeters-500 millimeters; Top plate thickness is 150 millimeters-200 millimeters, dewatering well totally 25 mouthfuls, well depth 20 meters.The all construction supporting stake of this Deep Foundation Pit periphery, foundation ditch distance seashore air line distance about 100 meters, groundwater level depth about about 1 meter.Groundwater type is mainly composed and is stored in sandy soils, and without pressure-bearing property, head buried depth is at about 5 meters, and with region ocean water body close relation, the water yield is enriched, and affects large on underground engineering construction and maintenance.
According to the surrounding enviroment of above foundation ditch, concrete foundation pit supporting construction construction method is as follows:
(1) central area adopts the balanced basin excavation of Sub-region and hierarchical, adopts reserved earthwork formula outwards to advance layer by layer;
(2) central area basement sole plate 5 and structure construction;
(3) after central area basement sole plate 5 and structure construction complete, at periphery soldier pile 1 inwardly construction steel support, be supported on central area basement sole plate 5;
(4) this regional earthwork is excavated;
(5) to construct this region basement sole plate 5 and structure;
(6) after basement sole plate 5 concrete strength reaches requirement, steel structure support is removed.
Specific construction step wherein in step one and step 2 is as follows, specifically see accompanying drawing 4 to accompanying drawing 8:
A) excavation forms basal plane first;
B) basic piling work is started;
C) construction reinforced bar concrete pouring dowel crown beam;
D) excavation is to design elevation;
E) pile crown pile cover of constructing is exposed;
F) truss element and oblique structure body S1 are installed;
G) excavation installs oblique structure body S2 to absolute altitude position;
H) excavation is to elevation location and basement bottom board of constructing;
I) to construct all the other pile covers;
J) basement floor construction and bed die is completed;
K) truss S2 is removed;
L) transfer main contractor to construct superstructure.
Wherein in step 3 before construction steel support, first spliced according to dead size length in foundation ditch by bracing members, then adopt two suspension centres to hang method, integral hoisting puts in place, fills described bracing members neutral, and strike closely knit after being in place with bquster.Described bracing members is set to twice Two bors d's oeuveres H profile steel 6 and supports, and the level interval between twice Two bors d's oeuveres H profile steel 6 supports is 9m.After bracing members has been constructed, to support and the waist rail gap palpus fine-stone concrete of coming of age between beam bracket 2 and base plate bracket 3 is embedding completely ensures that end face is all stressed.
Two bors d's oeuveres H profile steel 6 Construction of Supporting in step 3 and this regional earthwork of excavation in described step 4 hocket.
Two bors d's oeuveres H profile steel 6 Construction of Supporting in step 3 and the basement sole plate 5 in step 5 and structure construction hocket.
As shown in Figure 1, a kind of foundation pit support device, comprises periphery soldier pile 1, hat beam bracket 2 is provided with at periphery soldier pile 1 top end, below described hat beam bracket 2, be provided with steel near top end enclose purlin 4, basement sole plate 5 end face arranges base plate bracket 3, and base plate bracket 3 anchors into base plate.In the Two bors d's oeuveres H profile steel 6 of periphery soldier pile 1 interpolation 500*30*11*28, in pile body, the slotting shaped steel length of institute is equal; Wherein Two bors d's oeuveres H profile steel 6 one end is supported on steel and encloses on purlin 4, and the other end is supported on base plate bracket 3; Another Two bors d's oeuveres H profile steel 6 one end is supported on hat beam bracket 2, and the other end is supported on base plate bracket 3.
As shown in Figure 2, that is preced with beam bracket 2 meets the oblique pre-embedded steel slab 7 of pitted surface and steel mesh reinforcement 8, arranges H profile steel 9 perpendicular to described steel plate 7.
As shown in Figure 3, base plate bracket 3 carries on the back the oblique pre-embedded steel slab 7 of pitted surface and steel mesh reinforcement 8, comprise the vertical base plate section perpendicular to basement sole plate and the oblique linkage section that be connected oblique with vertical base plate section, vertical base plate section and oblique linkage section all arrange H profile steel 9 perpendicular to steel plate 7.
This specific embodiment is only explanation of the invention; it is not limitation of the present invention; those skilled in the art can make to the present embodiment the amendment not having creative contribution as required after reading this manual, as long as but be all subject to the protection of Patent Law in right of the present invention.
Claims (10)
1. a base pit stand construction, is applicable to the pattern foundation pit supporting structure of foundation ditch periphery construction supporting stake, it is characterized in that, adopts fender post, comprehensive utilization technique that reserved soil combines with basement floor constructions, and Specific construction step is as follows:
(1) central area adopts the balanced basin excavation of Sub-region and hierarchical, adopts reserved earthwork formula outwards to advance layer by layer;
(2) central area basement sole plate (5) and structure construction;
(3) after central area basement sole plate (5) and structure construction complete, at periphery soldier pile (1) inwardly construction steel support, be supported on central area basement sole plate (5);
(4) this regional earthwork is excavated;
(5) to construct this region basement sole plate (5) and structure;
(6) after basement sole plate (5) concrete strength reaches requirement, steel structure support is removed.
2. base pit stand construction according to claim 1, is characterized in that: the bracing members described in step 3 is set to twice Two bors d's oeuveres H profile steel (6) and supports, and the level interval between described twice Two bors d's oeuveres H type (6) bracing members is 9m.
3. base pit stand construction according to claim 2, it is characterized in that: in step 3 before construction steel support, first bracing members is spliced according to dead size length in foundation ditch, then two suspension centres are adopted to hang method, integral hoisting puts in place, fill described bracing members neutral with bquster after being in place, and strike closely knit.
4. base pit stand construction according to claim 2, it is characterized in that: after the bracing members in described step 3 has been constructed, to support and the waist rail gap palpus fine-stone concrete of coming of age between beam bracket (2) and base plate bracket (3) is embedding completely ensures that end face is all stressed.
5. base pit stand construction according to claim 2, is characterized in that: Two bors d's oeuveres H profile steel (6) Construction of Supporting in described step 3 and this regional earthwork of excavation in described step 4 hocket.
6. base pit stand construction according to claim 1 and 2, is characterized in that: Two bors d's oeuveres H profile steel (6) Construction of Supporting in described step 3 and the basement sole plate (5) in step 5 and structure construction hocket.
7. the foundation pit support device carrying out supporting according to above-mentioned base pit stand construction, it is characterized in that: described periphery soldier pile (1) top end is provided with hat beam bracket (2), be provided with steel in described hat beam bracket (2) below near top end and enclose purlin (4), basement sole plate (5) end face arranges base plate bracket (3), and base plate bracket (3) anchors into base plate; At periphery soldier pile (1) interpolation Two bors d's oeuveres H profile steel (6), in pile body, the slotting shaped steel length of institute is equal; Wherein Two bors d's oeuveres H profile steel (6) one end is supported on steel and encloses on purlin (4), and the other end is supported on base plate bracket (3); Another Two bors d's oeuveres H profile steel (6) one end is supported on hat beam bracket (2), and the other end is supported on base plate bracket (3).
8. a kind of foundation pit support device according to claim 7, is characterized in that: described hat beam bracket (2) meet the oblique pre-embedded steel slab of pitted surface (7) and steel mesh reinforcement (8), perpendicular to described steel plate (7), H profile steel (9) is set.
9. a kind of foundation pit support device according to claim 7 or 8, is characterized in that: described base plate bracket (3) the back of the body oblique pre-embedded steel slab of pitted surface (7) and steel mesh reinforcement (8), arrange H profile steel (9) perpendicular to described steel plate (7).
10. a kind of foundation pit support device according to claim 9, it is characterized in that: described base plate bracket back of the body pitted surface comprises vertical base plate section perpendicular to described basement sole plate (5) and the oblique linkage section that be connected oblique with described vertical base plate section, and described vertical base plate section and oblique linkage section are all vertically installed with H profile steel (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510225860.XA CN104947682A (en) | 2015-05-06 | 2015-05-06 | Foundation pit support construction method and device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510225860.XA CN104947682A (en) | 2015-05-06 | 2015-05-06 | Foundation pit support construction method and device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104947682A true CN104947682A (en) | 2015-09-30 |
Family
ID=54162700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510225860.XA Pending CN104947682A (en) | 2015-05-06 | 2015-05-06 | Foundation pit support construction method and device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104947682A (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106894424A (en) * | 2017-03-03 | 2017-06-27 | 周同和 | A kind of short branch supporting system of basin excavation and its construction technology |
| CN107476313A (en) * | 2017-08-22 | 2017-12-15 | 江苏省岩土工程公司 | A kind of method tiltedly thrown support support system and constructed simultaneously with sole plate |
| CN109299508A (en) * | 2018-08-24 | 2019-02-01 | 中国地质大学（武汉） | A method of calculating the critical embedded coefficient of SMW retaining structure |
| CN109577342A (en) * | 2018-11-15 | 2019-04-05 | 江苏科技大学 | A kind of quick suspension device of circle well construction |
| CN110158602A (en) * | 2019-06-10 | 2019-08-23 | 中交第二航务工程局有限公司 | A kind of Soft Clay deep foundation pit support excavation construction structure and construction method |
| CN111005388A (en) * | 2019-12-12 | 2020-04-14 | 中冶天工集团有限公司 | Deep foundation pit integral supporting device and supporting method thereof |
| CN111395353A (en) * | 2019-12-07 | 2020-07-10 | 中冶天工集团有限公司 | Foundation pit supporting device and method based on combination of steel sheet piles and vertical inclined struts |
| CN111501772A (en) * | 2020-04-10 | 2020-08-07 | 深圳市地质环境研究院有限公司 | Construction method for supporting and protecting piles by combining grouting with steel pipes in SMW (soil mixing wall) construction method |
| CN111719563A (en) * | 2020-06-24 | 2020-09-29 | 中铁第五勘察设计院集团有限公司 | Foundation pit supporting structure |
| CN113356232A (en) * | 2021-06-30 | 2021-09-07 | 山西五建集团有限公司 | Assembled profile steel combined foundation pit supporting method |
| CN113463650A (en) * | 2021-06-25 | 2021-10-01 | 中铁一局集团厦门建设工程有限公司 | Foundation pit inclined support system and foundation pit inner support construction method |
| CN113863320A (en) * | 2021-10-20 | 2021-12-31 | 江苏科技大学 | Foundation pit supporting structure and construction method thereof |
| CN114319373A (en) * | 2021-12-07 | 2022-04-12 | 广州地铁设计研究院股份有限公司 | Vertical steel inclined strut joint structure capable of adapting to various angles and design method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2327008C2 (en) * | 2006-06-29 | 2008-06-20 | Борис Арнольдович Картозия | Bracing of boards of foundation ditch |
| CN101892667A (en) * | 2010-07-23 | 2010-11-24 | 中国建筑第二工程局有限公司 | Foundation pit support device and construction method |
| CN104164878A (en) * | 2013-05-20 | 2014-11-26 | 中交公路养护工程技术有限公司 | Earth excavation technology for ultra-large type deep foundation pit |
| CN204098043U (en) * | 2014-09-22 | 2015-01-14 | 中南勘察设计院（湖北）有限责任公司 | After staying soil, excavation is in conjunction with inner support Retaining Structure with Double-row Piles |
| CN204715364U (en) * | 2015-05-06 | 2015-10-21 | 中国地质大学（武汉） | A kind of foundation pit support device |
-
2015
- 2015-05-06 CN CN201510225860.XA patent/CN104947682A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2327008C2 (en) * | 2006-06-29 | 2008-06-20 | Борис Арнольдович Картозия | Bracing of boards of foundation ditch |
| CN101892667A (en) * | 2010-07-23 | 2010-11-24 | 中国建筑第二工程局有限公司 | Foundation pit support device and construction method |
| CN104164878A (en) * | 2013-05-20 | 2014-11-26 | 中交公路养护工程技术有限公司 | Earth excavation technology for ultra-large type deep foundation pit |
| CN204098043U (en) * | 2014-09-22 | 2015-01-14 | 中南勘察设计院（湖北）有限责任公司 | After staying soil, excavation is in conjunction with inner support Retaining Structure with Double-row Piles |
| CN204715364U (en) * | 2015-05-06 | 2015-10-21 | 中国地质大学（武汉） | A kind of foundation pit support device |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106894424A (en) * | 2017-03-03 | 2017-06-27 | 周同和 | A kind of short branch supporting system of basin excavation and its construction technology |
| CN107476313A (en) * | 2017-08-22 | 2017-12-15 | 江苏省岩土工程公司 | A kind of method tiltedly thrown support support system and constructed simultaneously with sole plate |
| CN109299508A (en) * | 2018-08-24 | 2019-02-01 | 中国地质大学（武汉） | A method of calculating the critical embedded coefficient of SMW retaining structure |
| CN109299508B (en) * | 2018-08-24 | 2023-04-07 | 中国地质大学（武汉） | Method for calculating critical embedding coefficient of SMW retaining structure |
| CN109577342A (en) * | 2018-11-15 | 2019-04-05 | 江苏科技大学 | A kind of quick suspension device of circle well construction |
| CN110158602B (en) * | 2019-06-10 | 2020-09-29 | 中交第二航务工程局有限公司 | Soft soil geological deep foundation pit supporting excavation construction structure and construction method |
| CN110158602A (en) * | 2019-06-10 | 2019-08-23 | 中交第二航务工程局有限公司 | A kind of Soft Clay deep foundation pit support excavation construction structure and construction method |
| CN111395353A (en) * | 2019-12-07 | 2020-07-10 | 中冶天工集团有限公司 | Foundation pit supporting device and method based on combination of steel sheet piles and vertical inclined struts |
| CN111005388A (en) * | 2019-12-12 | 2020-04-14 | 中冶天工集团有限公司 | Deep foundation pit integral supporting device and supporting method thereof |
| CN111501772A (en) * | 2020-04-10 | 2020-08-07 | 深圳市地质环境研究院有限公司 | Construction method for supporting and protecting piles by combining grouting with steel pipes in SMW (soil mixing wall) construction method |
| CN111719563A (en) * | 2020-06-24 | 2020-09-29 | 中铁第五勘察设计院集团有限公司 | Foundation pit supporting structure |
| CN113463650A (en) * | 2021-06-25 | 2021-10-01 | 中铁一局集团厦门建设工程有限公司 | Foundation pit inclined support system and foundation pit inner support construction method |
| CN113356232A (en) * | 2021-06-30 | 2021-09-07 | 山西五建集团有限公司 | Assembled profile steel combined foundation pit supporting method |
| CN113863320A (en) * | 2021-10-20 | 2021-12-31 | 江苏科技大学 | Foundation pit supporting structure and construction method thereof |
| CN114319373A (en) * | 2021-12-07 | 2022-04-12 | 广州地铁设计研究院股份有限公司 | Vertical steel inclined strut joint structure capable of adapting to various angles and design method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104947682A (en) | Foundation pit support construction method and device thereof | |
| CN105089061B (en) | Ultra-deep foundation pit supporting method | |
| CN101914925B (en) | Basement by using optimized composite prefabricated arch wall as external wall | |
| CN205742213U (en) | Foundation pit supporting construction | |
| CN204491626U (en) | The foundation pit enclosure structure that Larsen steel sheet pile and prestressed anchor combine | |
| CN101092850A (en) | Method and installation for rising building or historical building / cluster of historical building integrally | |
| CN1948633A (en) | Tray type excarvating contrary construction method | |
| CN106013171B (en) | A kind of semi-rigid supporting construction semi-flexible and method of deep-foundation side wall | |
| CN104594361B (en) | A kind of I shape fender post and building enclosure also serve as the construction method of agent structure | |
| CN102162258B (en) | Concrete-filled steel tubular high-pile tower footing structure of tower crane and construction method thereof | |
| CN103938634B (en) | A kind of deep foundation pit supporting structure and construction method | |
| CN105239578B (en) | Water-rich sand layer deep foundation pit underwater construction method | |
| CN105178327A (en) | Composite retaining structure of foundation pit project and construction method thereof | |
| CN101418569B (en) | Optimization complex arch wall combining prefabricated arch leaf, support and major structure | |
| CN207092107U (en) | A kind of anti-subsidence structure using diaphram wall | |
| CN102505704A (en) | Large open caisson construction method in soft geological shaft | |
| CN101736757A (en) | Two-way synchronous construction method of tube structure of high-rise building | |
| CN107012871B (en) | A kind of suspension type goes along with sb. to guard him the deep reversed construction method for greatly enhancing foundation pit fabricated construction | |
| CN101220594A (en) | Building foundation pit supporting construction | |
| CN1952273A (en) | Digging foundation with baffle and its construction method | |
| CN109183838B (en) | A kind of high anti-floating cracking resistance basement floor constructions and its design method | |
| CN103422510A (en) | Steel pipe frame type cofferdam structure and construction method | |
| CN204715364U (en) | A kind of foundation pit support device | |
| CN1333139C (en) | Column supported underground continuous wall | |
| CN204940298U (en) | A kind of Composite Enclosure Structure of base pit engineering |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150930 |