CN104846842A - Deeply-buried pool construction method for gridded underground continuous-wall foundation pit support - Google Patents
Deeply-buried pool construction method for gridded underground continuous-wall foundation pit support Download PDFInfo
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- CN104846842A CN104846842A CN201510276831.6A CN201510276831A CN104846842A CN 104846842 A CN104846842 A CN 104846842A CN 201510276831 A CN201510276831 A CN 201510276831A CN 104846842 A CN104846842 A CN 104846842A
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Abstract
The invention discloses a deeply-buried pool construction method for a gridded underground continuous-wall foundation pit support. The method includes construction of a gridded underground continuous wall and a deeply-buried pool structure, and is characterized in that a deeply-buried pool takes the gridded underground continuous wall as a lateral force resistant soil retaining structure, and vertical earth excavation of an inner-support free structure is performed in the foundation pit support formed by the gridded underground continuous wall. The construction method specially includes the steps of building of the underground continuous wall and construction of the main pool structure. Compared with the prior art, the deeply-buried pool construction method has the advantages that the construction process is simple, progress of the construction is fast, construction waste caused by subsequent dismantling of a temporary foundation pit structure is avoided, energy conservation and emission reduction are achieved, the process is green and environment friendly, and the method is especially suitable for construction of pool structures with soft layers deeply buried by less than 15 meters.
Description
Technical field
The present invention relates to enclosing Technique for Deep Foundation Pit field, specifically a kind of buried pool construction method of the lattice shape diaphragm wall bracing of foundation pit for Extra-Deep Foundation Pit deep water test.
Background technology
21st century is numerical ocean model, and along with China continues to increase the input of ocean engineering and Marine engineering design field, the demand for deep water test pond is also on the increase.Along with continuing to increase of content of the test and complexity, also more and more higher to the degree of depth of experimental tank, scale yardstick and Functional Requirement, buried pool construction gets more and more, and part buried depth is even more than 30m.
At present, buried pool construction all needs first construction foundation pit bracing engineering, and then pool construction of constructing, and both are separate, and this not only causes much unnecessary waste and construction process is complicated, and engineering risk is larger.Problem and the global questions integrally such as the compression of this structure of base pit engineering collection ground, consolidation and seepage stability are focus and the difficult point in geotechnical engineering field always.Only underground space development progress in China each metropolis is rapid for over ten years, emerge in large numbers the base pit engineering building project of a large amount of technical sophistication, in various aspects such as design of foundation pit theory, construction method and execution control technology, all there is a lot of new technology, as contrary sequence method Foundation Pit Support Engineering, adopt the interim space enclosing structure of foundation ditch to combine with basement agent structure, simplify construction process, but the dismounting of the later stage of foundation ditch temporary structure causes a large amount of building wastes.But buried pond is different from conventional basement structure, pond is the uncovered structure of " U " shape, without inner support, so that the mode that combines with basement agent structure of the space enclosing structure of prior art cannot meet the requirement of pool construction homeostasis and safety.
Summary of the invention
The object of the invention is the buried pool construction method of a kind of lattice shape diaphragm wall bracing of foundation pit designed for the deficiencies in the prior art, adopt the lattice shape underground ground-connecting-wall structure that self-supporting pond combines with deep footing groove enclosing structure, pool construction dative shape diaphragm wall soil-baffling structure is merged mutually in function with component feature, not only meet the uncovered buried structure homeostasis of " U " shape and safety, the simultaneously functional requirement in also Pass Test pond, avoiding the foundation ditch temporary structure later stage removes the building waste caused, a kind of energy-saving and emission-reduction, the technology of environmental protection, especially the construction of Soft Clay buried depth >15m pool construction is suitable for.
The technical scheme realizing the object of the invention is: a kind of buried pool construction method of lattice shape diaphragm wall bracing of foundation pit, comprise the construction of lattice shape diaphragm wall and buried pool construction, be characterized in buried pond with lattice shape diaphragm wall for lateral resisting soil-baffling structure, in the bracing of foundation pit that lattice shape diaphragm wall is formed, carry out the vertical type soil excavation without inner supporting structure, its Specific construction comprises the steps:
(1), the constructing of diaphragm wall
Carry out the structure construction of bracing of foundation pit by the designing requirement in buried pond, foundation pit enclosure structure adopt front wall and rear wall and be arranged on web between front wall and rear wall, coping is connected is integrally-built lattice shape diaphragm wall; Described front wall and rear wall are "T"-shaped structure, the body of wall employing flexible joint connection that its each groove is intersegmental; Described web is connected with front wall and rear wall by rigid joint.
(2), the construction of sink body structure
Buried pond is " U " shape open water pool that pond sidewall and pond base plate form, the vertical type soil excavation without inner supporting structure is carried out in buried pond in the bracing of foundation pit that lattice shape diaphragm wall is formed, dig the cushion construction carrying out foundation ditch to design end absolute altitude, then closed cell base plate carries out the main structure construction in buried pond, pond base plate and the front wall of surrounding are that steel concrete is connected, pond sidewall with lattice shape diaphragm wall for vertical supporting is on front wall and with front wall for steel concrete is connected.
It is simple that the present invention compared with prior art has construction process, programming is fast, avoiding the foundation ditch temporary structure later stage removes the building waste caused, a kind of energy-saving and emission-reduction, the technology of environmental protection, is especially suitable for the construction of Soft Clay buried depth >15m pool construction.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is Fig. 1 top view;
Fig. 3 is buried basin side wall dative shape continuous underground wall structure schematic diagram.
Detailed description of the invention
Embodiment 1
With certain engineering pond, the invention will be further described below, and this pond length is 68m, width 28m, cutting depth are 21m.
Accompanying drawings 1 ~ accompanying drawing 2, the present invention is made up of lattice shape diaphragm wall 6 and buried pond 7, described lattice shape diaphragm wall 6 be front wall 1 with rear wall 3 and be arranged on web 2 between front wall 1 and rear wall 3, coping 5 is connected for integrally-built lattice shape ground wall; Described buried pond 7 is the open water pool of " U " shape that pond sidewall 4 forms with pond base plate 8, buried pond 7 is lateral resisting soil-baffling structure with lattice shape diaphragm wall 6, in the bracing of foundation pit that lattice shape diaphragm wall 6 is formed, carry out the vertical type soil excavation without inner supporting structure, its Specific construction comprises the steps:
(1), the constructing of diaphragm wall
Accompanying drawings 3, foundation pit enclosure structure adopt front wall 1 and rear wall 3 and be arranged on web 2 between front wall 1 and rear wall 3, coping 5 is connected for integrally-built lattice shape ground wall; Described front wall 1 and rear wall 3 are "T"-shaped structure, and the intersegmental body of wall of its each groove adopts flexible joint 9 to connect; Described web 2 is connected with front wall 1 and rear wall 3 by rigid joint 10, and the structure construction of bracing of foundation pit carries out as follows:
1., by the structure design in buried pond 7 carry out the plane unwrapping wire location of lattice shape diaphragm wall 6, and wall being led in setting, is 0.8m by the thickness of design lattice shape diaphragm wall 6, foundation depth >21m.
2., by the grooving technology of ground wall carry out the "T"-shaped groove section construction of lattice shape diaphragm wall 6, every 6.0m is a "T"-shaped groove section, and considers that punched steel plate and groove section are to the requirement of locking notch pipe, install reinforcing cage.
3., build the underwater concrete of "T"-shaped groove section by underwater concrete construction technique, form lattice shape diaphragm wall 6 structure.
4., at the groove section top of pour-shaping arrange the coping 5 that steel concrete makes, its thickness is 1.0m.
(2), the construction of sink body structure
Buried pond 7 is the open water pool of " U " shape that pond sidewall 4 forms with pond base plate 8, the vertical type soil excavation without inner supporting structure is carried out in buried pond 7 in the bracing of foundation pit that lattice shape diaphragm wall 6 is formed, dig the cushion construction carrying out foundation ditch to design end absolute altitude, then closed cell base plate 8 carries out the main structure construction in buried pond, the front wall 1 of pond base plate 8 and surrounding is connected for steel concrete, pond sidewall 4 is that vertical supporting is connected for steel concrete with front wall 1 on front wall 1 with lattice shape diaphragm wall 6, completes the main structure construction in buried pond 7.
Buried pond 7 is not before the earthwork is excavated, just the diaphragm wall 6 of lattice shape has been constructed in advance as the vertical supporting in buried pond 7 and soil-baffling structure, the diaphragm wall 6 of lattice shape is the unsupported foundation pit enclosure structure of self-supporting, in pond, the excavation stage is space enclosing structure, and operational phase is the side wall of sink body structure.Front wall 1 and rear wall 3 are built into overall structure by the coping 5 being arranged on diaphragm wall 6 top, coping 5 as the job platform of both sides, buried pond 7, simultaneously also as the basis of the attached setting in top, buried pond 7.Buried pond 7 is combined with diaphragm wall 6, make pool construction function can meet self technological requirement, play again simultaneously and go along with sb. to guard him effect in construction foundation pit digging process, enormously simplify construction process, the building waste avoiding construction pit to go along with sb. to guard him later stage dismounting produces, energy-saving and emission-reduction, environmental protection, is especially suitable for construction and the construction of Soft Clay buried depth >15m pool construction.
More than just the present invention is further illustrated, and be not used to limit this patent, allly implements for the present invention's equivalence, within the right that all should be contained in this patent.
Claims (1)
1. the buried pool construction method of a lattice shape diaphragm wall bracing of foundation pit, comprise the construction of constructing lattice shape diaphragm wall and buried pool construction, it is characterized in that buried pond with lattice shape diaphragm wall for lateral resisting soil-baffling structure, in the bracing of foundation pit that lattice shape diaphragm wall is formed, carry out the vertical type soil excavation without inner supporting structure, its Specific construction comprises the steps:
(1), the constructing of diaphragm wall
Carry out the structure construction of bracing of foundation pit by the designing requirement in buried pond, foundation pit enclosure structure adopt front wall and rear wall and be arranged on web between front wall and rear wall, coping is connected is integrally-built lattice shape diaphragm wall; Described front wall and rear wall are "T"-shaped structure, the body of wall employing flexible joint connection that its each groove is intersegmental; Described web is connected with front wall and rear wall by rigid joint;
(2), the construction of sink body structure
Buried pond is " U " shape open water pool that pond sidewall and pond base plate form, the vertical type soil excavation without inner supporting structure is carried out in buried pond in the bracing of foundation pit that lattice shape diaphragm wall is formed, dig the cushion construction carrying out foundation ditch to design end absolute altitude, then closed cell base plate carries out the main structure construction in buried pond, pond base plate and the front wall of surrounding are that steel concrete is connected, pond sidewall with lattice shape diaphragm wall for vertical supporting is on front wall and with front wall for steel concrete is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510276831.6A CN104846842A (en) | 2015-05-27 | 2015-05-27 | Deeply-buried pool construction method for gridded underground continuous-wall foundation pit support |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510276831.6A CN104846842A (en) | 2015-05-27 | 2015-05-27 | Deeply-buried pool construction method for gridded underground continuous-wall foundation pit support |
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| CN104846842A true CN104846842A (en) | 2015-08-19 |
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| CN201510276831.6A Pending CN104846842A (en) | 2015-05-27 | 2015-05-27 | Deeply-buried pool construction method for gridded underground continuous-wall foundation pit support |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110359525A (en) * | 2019-06-20 | 2019-10-22 | 河海大学 | A kind of static-pressure precast assembled pond and its method of construction |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2820960Y (en) * | 2005-07-14 | 2006-09-27 | 中船第九设计研究院 | Check shape underground wall self standing wall protection structure |
| CN102296616A (en) * | 2011-07-05 | 2011-12-28 | 中冶天工上海十三冶建设有限公司 | Semi-underground retaining and protecting method for constructing cylindrical underground tank |
| CN202139873U (en) * | 2011-07-12 | 2012-02-08 | 中船第九设计研究院工程有限公司 | Precasted environment-friendly pool structure for high-pile girder plate type wharf |
| CN102392549A (en) * | 2011-11-23 | 2012-03-28 | 大连市建设工程集团有限公司 | Construction working method for seamless prestressed-concrete self-waterproof clean water reservoir |
| CN103603313A (en) * | 2013-12-11 | 2014-02-26 | 中船第九设计研究院工程有限公司 | Rectifier wall structure of making flow by deep water, and construction method thereof |
-
2015
- 2015-05-27 CN CN201510276831.6A patent/CN104846842A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2820960Y (en) * | 2005-07-14 | 2006-09-27 | 中船第九设计研究院 | Check shape underground wall self standing wall protection structure |
| CN102296616A (en) * | 2011-07-05 | 2011-12-28 | 中冶天工上海十三冶建设有限公司 | Semi-underground retaining and protecting method for constructing cylindrical underground tank |
| CN202139873U (en) * | 2011-07-12 | 2012-02-08 | 中船第九设计研究院工程有限公司 | Precasted environment-friendly pool structure for high-pile girder plate type wharf |
| CN102392549A (en) * | 2011-11-23 | 2012-03-28 | 大连市建设工程集团有限公司 | Construction working method for seamless prestressed-concrete self-waterproof clean water reservoir |
| CN103603313A (en) * | 2013-12-11 | 2014-02-26 | 中船第九设计研究院工程有限公司 | Rectifier wall structure of making flow by deep water, and construction method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 李昀等: "大型圆形深基坑设计分析研究", 《地下空间与工程学报》, vol. 7, no. 5, 30 October 2011 (2011-10-30) * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110359525A (en) * | 2019-06-20 | 2019-10-22 | 河海大学 | A kind of static-pressure precast assembled pond and its method of construction |
| CN110359525B (en) * | 2019-06-20 | 2020-10-02 | 河海大学 | Static pressure prefabricated assembled water pool and construction method thereof |
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Application publication date: 20150819 |