CN114607187B - Shaft type underground parking garage construction method of cast-in-situ supporting structure under slurry - Google Patents
Shaft type underground parking garage construction method of cast-in-situ supporting structure under slurry Download PDFInfo
- Publication number
- CN114607187B CN114607187B CN202210405582.6A CN202210405582A CN114607187B CN 114607187 B CN114607187 B CN 114607187B CN 202210405582 A CN202210405582 A CN 202210405582A CN 114607187 B CN114607187 B CN 114607187B
- Authority
- CN
- China
- Prior art keywords
- slurry
- concrete
- bottom plate
- pipe
- parking garage
- 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.)
- Active
Links
- 239000002002 slurry Substances 0.000 title claims abstract description 57
- 238000010276 construction Methods 0.000 title claims abstract description 28
- 238000011065 in-situ storage Methods 0.000 title claims abstract description 13
- 230000002787 reinforcement Effects 0.000 claims abstract description 30
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 17
- 239000010959 steel Substances 0.000 claims abstract description 17
- 238000007599 discharging Methods 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 25
- 238000009412 basement excavation Methods 0.000 claims description 11
- 238000013461 design Methods 0.000 claims description 9
- 238000004140 cleaning Methods 0.000 claims description 4
- 230000000630 rising effect Effects 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 230000000087 stabilizing effect Effects 0.000 claims description 4
- 230000001502 supplementing effect Effects 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 238000012360 testing method Methods 0.000 claims description 3
- 238000009966 trimming Methods 0.000 claims description 3
- 239000002689 soil Substances 0.000 abstract description 10
- 238000005527 soil sampling Methods 0.000 abstract description 3
- 238000005553 drilling Methods 0.000 description 3
- 238000009415 formwork Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 102000002322 Egg Proteins Human genes 0.000 description 1
- 108010000912 Egg Proteins Proteins 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000004681 ovum Anatomy 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H6/00—Buildings for parking cars, rolling-stock, aircraft, vessels or like vehicles, e.g. garages
- E04H6/08—Garages for many vehicles
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Bulkheads Adapted To Foundation Construction (AREA)
Abstract
The invention discloses a shaft type underground parking garage construction method of a cast-in-situ supporting structure under slurry, which belongs to the technical field of underground parking garage construction and comprises the following steps: performing locking construction; after the strength of the locking concrete meets the requirement, taking soil from the slurry and excavating; after the steel reinforcement framework, the templates, the wall body concrete pouring pipes and the bottom plate concrete pouring pipes are excavated to the designed depth, and concrete is continuously poured into the wall body and the bottom plate space by utilizing the wall body concrete pouring pipes and the bottom plate concrete pouring pipes; discharging mud and checking quality. According to the invention, the stability of the pit wall and the pit bottom of the foundation pit is maintained by adopting slurry, the foundation pit is excavated by utilizing mechanical soil sampling under the slurry, a reinforcement cage and a template are hoisted in the slurry, and concrete is poured. The formed structure has the advantages of good integrity, high construction safety, low cost and strong stratum adaptability.
Description
Technical Field
The invention belongs to the technical field of underground parking garage construction, and particularly relates to a shaft type underground parking garage construction method of a cast-in-place supporting structure under slurry.
Background
With the improvement of the living standard of people, the quantity of motor vehicles kept is rapidly increased, and the 'parking difficulty' has become a prominent problem in many cities. The shaft type underground parking garage has the advantages of small occupied area, flexible arrangement, convenient combination, high access efficiency and the like, and is an important technical scheme for solving the problem of difficult parking in cities.
Currently, the main construction methods of shaft type underground parking garage are underground continuous wall method and open caisson method. In the underground continuous wall method, joints exist on the wall bodies of adjacent sections, so that the integrity of the wall bodies is weakened, and the joint parts can become weak links for impervious and waterproof of the wall bodies. And, the underground diaphragm wall method is generally expensive, especially when the underground diaphragm wall is used only as a temporary soil blocking structure. For some special geological conditions, such as soil layers of drift rocks, hard rock strata and the like, the construction difficulty of underground continuous wall methods and the like is great. Sinking depth is limited and limited by geological conditions, such as the difficulty of sealing cutting edges is high when no stable stratum exists at the bottom of a foundation pit, and when larger gravel (ovum) is formed in the stratum, a well wall can sink slowly or stop sinking, and large deflection can be generated.
Disclosure of Invention
Aiming at the problems, the invention aims to provide a shaft type underground parking garage construction method of a cast-in-place supporting structure under slurry, which is used for improving the integrity of a wall structure, the construction safety, reducing the cost and enhancing the stratum adaptability.
In order to achieve the aim of the invention, the invention adopts the following technical scheme:
a shaft type underground parking garage construction method of a cast-in-situ supporting structure under slurry comprises the following steps:
s1: performing locking construction;
s2: after the strength of the locking concrete meets the requirement, excavating a parking garage foundation pit under mud;
s3: after excavation to the designed depth, lowering a reinforcement cage, a template, a wall concrete pouring pipe and a bottom plate concrete pouring pipe;
s4: after the reinforcement cage, the templates, the wall body concrete pouring pipes and the bottom plate concrete pouring pipes are placed down, continuously pouring concrete into the wall body and the bottom plate space by using the wall body concrete pouring pipes and the bottom plate concrete pouring pipes; lifting the wall body concrete pouring pipe and the bottom plate concrete pouring pipe step by step along with the rising of the concrete surface;
stopping using the bottom plate concrete pouring pipe after the bottom plate pouring is completed, and continuing to perform wall concrete pouring through the wall concrete pouring pipe until the designed pouring surface elevation;
s5: and after the concrete strength of the supporting structure meets the design requirement, discharging mud.
Preferably, the method for locking construction in the step S1 comprises the following steps:
s1.1, excavating the locking groove, trimming the bottom, and performing temporary support on a groove wall if necessary;
s1.2, pouring and curing the locking port concrete, wherein the locking port can be integrally or sectionally constructed in the horizontal direction.
Preferably, in step S2, the method for excavating a foundation pit under mud is as follows:
s2.1, excavating a foundation pit of the parking garage to a certain depth after the strength of the locking concrete meets the requirement;
s2.2, pouring the pre-prepared slurry into the space excavated in the step S2.1 to the designed elevation;
s2.3, continuously excavating a foundation pit under the slurry by using a machine;
s2.4, continuously replenishing slurry into the pit along with the deepening of the excavation depth until the excavation depth reaches the design depth.
Preferably, in the step S3, the method for lowering the reinforcement cage, the formwork, the wall concrete pouring pipe and the bottom plate concrete pouring pipe is as follows:
s3.1, cleaning the bottom, supplementing slurry and adjusting the slurry performance in the pit;
s3.2, lowering prefabricated reinforcement cages, templates, wall concreting pipes and bottom plate concreting pipes in the slurry.
Preferably, a pouring opening is formed in the template at the bottom end.
Preferably, the template and the steel reinforcement framework are fixedly connected or detachably connected; the templates are prefabricated by steel, plastic or concrete materials in a blocking mode.
Preferably, the template inner space is provided with a template stabilizing support frame according to the requirement.
Preferably, the steel reinforcement framework is prefabricated in whole or in sections, and the wall rear grouting pipe is embedded in the steel reinforcement framework.
Preferably, after the wall body concrete pouring pipe and the bottom plate concrete pouring pipe are placed down, the sealing test is carried out on each guide pipe.
Preferably, the pouring quality of the wall body and the bottom plate is checked through the post-wall grouting pipe during or after the slurry discharge process, and grouting is carried out through the post-wall grouting pipe if necessary.
Compared with the prior art, the shaft type underground parking garage construction method of the under-slurry cast-in-situ supporting structure has the following advantages:
1. and (3) maintaining stability of the pit wall and the pit bottom of the foundation pit by adopting slurry, excavating the foundation pit by utilizing mechanical soil sampling under the slurry, hanging a reinforcement cage, a template and a concrete pouring pipe in the slurry, and pouring concrete. Because the steel reinforcement framework is connected into a whole, and concrete is poured in a whole, the supporting structure has good integrity.
2. The foundation pit excavation and the supporting operation are completed on the ground, and the construction safety is higher compared with the operation mode in the pit.
3. The overall process is simple, no temporary support structure is needed, and the cost is low.
4. The slurry retaining wall is widely applicable to various strata, different machines such as a grab bucket, a drilling machine and the like can be conveniently and flexibly adopted for excavating under the slurry according to stratum conditions, and in general, the construction method provided by the invention has stronger stratum adaptability.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic illustration of a construction of a wellbore type underground parking garage of the submerged cast-in-situ supporting structure of the present invention.
In the figure: 1-locking notch, 2-reinforcement cage, 3-template, 4-wall concreting pipe, 5-bottom plate concreting pipe.
Detailed Description
The technical scheme of the invention is further described below with reference to the accompanying drawings and examples:
referring to fig. 1, the invention provides a shaft type underground parking garage construction method of a cast-in-situ supporting structure under slurry, which comprises the following steps:
before formal construction, construction preparation work is performed, such as investigation and relocation of underground pipelines in a site, site water and electricity supply, temporary facility construction, preparation of construction machines and raw materials, measurement and paying-off and the like.
S1: constructing a locking notch 1;
s2: after the strength of the concrete of the locking notch 1 meets the requirement, manually or mechanically excavating the soil taken out of the slurry;
s3: after the excavation is carried out to the designed depth, hanging a reinforcement cage 2, a template 3, a wall body concrete pouring pipe 4 and a bottom plate concrete pouring pipe 5; the number and arrangement of the wall body concrete pouring pipes 4 and the bottom plate concrete pouring pipes 5 are determined according to the shape and the size design of the foundation pit;
s4: after the reinforcement cage 2, the templates 3, the wall body concrete pouring pipes 4 and the bottom plate concrete pouring pipes 5 are placed down, continuously pouring concrete into the wall body and bottom plate space by utilizing the wall body concrete pouring pipes 4 and the bottom plate concrete pouring pipes 5; lifting the wall body concrete pouring pipe 4 and the bottom plate concrete pouring pipe 5 step by step along with the rising of the concrete surface; but the depth of the bottom of the pouring pipe embedded into the concrete is ensured to meet the design requirements.
After the bottom plate pouring is completed, stopping using the bottom plate concrete pouring pipe 5, and continuing to perform wall concrete pouring through the wall concrete pouring pipe 4 until the designed pouring surface elevation;
s5: and after the strength of the concrete of the supporting structure meets the design requirement, discharging mud and checking the quality.
As a preferred embodiment, the specific method for constructing the locking notch 1 in step S1 is as follows:
s1.1, manually or mechanically excavating a groove of the locking notch 1, trimming a bottom cleaning, and performing temporary support on a groove wall if necessary;
s1.2 binding steel bars, pouring and curing the locking notch concrete, wherein the locking notch 1 can be constructed in a segmented mode in the horizontal direction, but joints between adjacent segments are required to be roughened and cleaned, and the steel bars are connected. The locking notch has the functions of maintaining soil stability of a near-surface section, providing a supporting platform for construction mechanical equipment, storing and stabilizing the slurry liquid level and the like.
As a preferred embodiment, the concrete method of the soil sampling excavation under the slurry in step S2 is as follows:
s2.1, manually or mechanically excavating soil with a certain depth in a foundation pit of the parking garage after the strength of the concrete of the locking notch 1 meets the requirement;
s2.2, pouring the pre-prepared slurry into the space excavated in the step S2.1 to the designed elevation;
s2.3, taking soil under the slurry by using a soil taking machine (such as a grab bucket, a drilling machine and the like), and excavating a foundation pit in layers;
s2.4, continuously supplementing slurry into the pit along with the deepening of the excavation depth so as to maintain the stability of the slurry surface until the excavation depth reaches the design depth.
As a preferred embodiment, the specific method for hanging the reinforcement cage 2, the formwork 3, the wall body concreting pipe 4 and the bottom plate concreting pipe 5 in the step S3 is as follows:
s3.1, cleaning the bottom, supplementing slurry and adjusting the slurry performance in the pit;
s3.2, hoisting the prefabricated reinforcement cage 2, the templates 3, the wall body concreting pipes 4 and the bottom plate concreting pipes 5 in slurry by using a hoisting machine.
The steel reinforcement cage 2 can be integrally prefabricated, or can be connected with each other in a field by adopting a welding or mechanical mode (such as a steel bar connector) after being horizontally segmented and vertically segmented. Grouting pipes can be pre-buried on the steel reinforcement cage 2 according to design requirements, so that later grouting is facilitated.
The form 3 may be made of steel, plastic or concrete, and the form 3 may be designed as a part of a supporting structure or may be designed to be detachable for recycling according to the requirement. The template 3 can be integrally prefabricated, or can be mechanically connected into a whole in situ after being prefabricated in blocks. The template 3 can be hung and lowered independently, or can be integrally hung and lowered along with the reinforcement cage 2 after being connected and fixed with the reinforcement cage 2.
As a preferred embodiment, the bottom end of the template 3 is provided with a pouring opening. So that the slurry passes through the bottom end form 3 during lifting to reduce buoyancy and is inserted into the floor concreting pipe 5 during floor concreting.
As a preferred embodiment, the template 3 is fixedly connected or detachably connected with the reinforcement cage 2; the formwork 3 is prefabricated by steel, plastic or concrete materials in blocks.
As a preferred embodiment, when the diameter of the foundation pit is larger, the inner space of the template 3 is provided with a template stabilizing support according to the requirement. Preventing the template from being unstable and toppling over.
As a preferred embodiment, the reinforcement cage 2 is prefabricated in whole or in sections, and the wall post-grouting pipe is embedded in the reinforcement cage 2. The length of the grouting pipe behind the wall is the distance between the template and the foundation pit wall, and the grouting pipe is used for checking the pouring quality of the wall and the bottom plate.
As a preferred embodiment, after the wall body concreting pipe 4 and the bottom plate concreting pipe 5 are put down, the sealing test is performed on each guide pipe.
As a preferred embodiment, the pouring quality of the wall body and the bottom plate is checked by the post-wall grouting pipe during or after the slurry discharge, and grouting is performed by the post-wall grouting pipe if necessary.
Working principle: firstly, pouring a locking notch to provide a supporting platform for construction mechanical equipment; then pouring the pre-prepared slurry, and taking out soil under the slurry by utilizing a soil taking machine (such as a grab bucket, a drilling machine and the like), wherein the slurry retaining wall can be widely applied to various stratum, and the pit body can be prevented from collapsing by excavating under the slurry according to stratum conditions; then hoisting the prefabricated reinforcement cage, the template and the concrete pouring pipe in the slurry by using a hoisting machine, wherein the bottom template is provided with a pouring opening so that the slurry passes through the bottom template when being hoisted to reduce buoyancy and is inserted into the bottom plate concrete pouring pipe when being poured; the method is characterized in that bottom concrete is poured by a bottom plate concrete pouring pipe, after bottom pouring is completed, the wall of the pit is poured by a wall concrete pouring pipe, and the concrete pouring pipe is lifted up gradually along with the rising of the concrete surface during pouring; finally, pumping and draining the slurry in the pit, and checking the pouring quality of the wall body and the bottom plate through the post-wall grouting pipe after the slurry pumping and draining are finished.
In this specification, for the apparatus disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple, and the relevant points refer to the description of the method section. The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to the embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. The shaft type underground parking garage construction method of the cast-in-situ supporting structure under the slurry is characterized by comprising the following steps of:
s1: constructing a locking notch (1);
s2: after the strength of the concrete of the locking notch (1) meets the requirement, excavating a foundation pit of the parking garage under mud;
s3: after excavation is carried out to a designed depth, a reinforcement cage (2), a template (3), a wall body concrete pouring pipe (4) and a bottom plate concrete pouring pipe (5) are lowered; a pouring opening is formed in the template (3) at the bottom end;
s4: after the steel reinforcement framework (2), the templates (3), the wall body concrete pouring pipes (4) and the bottom plate concrete pouring pipes (5) are placed down, continuously pouring concrete into the wall body and the bottom plate space by using the wall body concrete pouring pipes (4) and the bottom plate concrete pouring pipes (5); lifting the wall body concrete pouring pipe (4) and the bottom plate concrete pouring pipe (5) step by step along with the rising of the concrete surface;
after the bottom plate pouring is completed, stopping using the bottom plate concrete pouring pipe (5), and continuing to perform wall concrete pouring through the wall concrete pouring pipe (4) until the designed pouring surface elevation;
s5: discharging slurry after the strength of the concrete of the supporting structure meets the design requirement;
the method for excavating the foundation pit under the slurry in the step S2 comprises the following steps:
s2.1, excavating a foundation pit of the parking garage to a certain depth after the strength of the concrete of the locking notch (1) meets the requirement;
s2.2, pouring the pre-prepared slurry into the space excavated in the step S2.1 to the designed elevation;
s2.3, continuously excavating a foundation pit under the slurry by using a machine;
s2.4, continuously replenishing slurry into the pit along with the deepening of the excavation depth until the excavation depth reaches the design depth.
2. The method for constructing the shaft type underground parking garage of the under-slurry cast-in-situ supporting structure according to claim 1, wherein the method for constructing the locking notch (1) in the step S1 is as follows:
s1.1, excavating a groove of the locking notch (1), trimming a clear bottom, and performing temporary support on a groove wall if necessary;
s1.2, pouring and curing the locking port concrete, wherein the locking port (1) can be integrally or sectionally constructed in the horizontal direction.
3. The construction method of the shaft type underground parking garage of the under-slurry cast-in-place supporting structure according to claim 1, wherein the method for lowering the reinforcement cage (2), the template (3), the wall concrete pouring pipe (4) and the bottom plate concrete pouring pipe (5) in the step S3 is as follows:
s3.1, cleaning the bottom, supplementing slurry and adjusting the slurry performance in the pit;
s3.2, a prefabricated reinforcement cage (2), a template (3), a wall body concreting pipe (4) and a bottom plate concreting pipe (5) are placed in the slurry.
4. A method for constructing a shaft type underground parking garage of an under-mud cast-in-situ supporting structure according to claim 1 or 3, wherein the template (3) and the reinforcement cage (2) are fixedly connected or detachably connected; the template (3) is prefabricated by steel, plastic or concrete materials in blocks.
5. A method for constructing a shaft type underground parking garage of an under-slurry cast-in-situ supporting structure according to claim 1 or 3, wherein the inner space of the template (3) is provided with a template stabilizing support according to the requirement.
6. A method for constructing a shaft type underground parking garage of a cast-in-situ supporting structure under slurry according to claim 1 or 3, wherein the steel reinforcement cage (2) is prefabricated in a whole or in a segmented manner, and a post-grouting pipe is embedded in the steel reinforcement cage (2).
7. A method for constructing a shaft type underground parking garage of a cast-in-place supporting structure under mud according to claim 1 or 3, wherein after the wall body concreting pipe (4) and the bottom plate concreting pipe (5) are put down, the sealing test is carried out on each guide pipe.
8. The method for constructing a shaft type underground parking garage of an under-mud cast-in-place supporting structure according to claim 1, wherein the pouring quality of the wall body and the bottom plate is checked through the post-wall grouting pipe during or after the mud is discharged, and grouting is performed through the post-wall grouting pipe if necessary.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210405582.6A CN114607187B (en) | 2022-04-18 | 2022-04-18 | Shaft type underground parking garage construction method of cast-in-situ supporting structure under slurry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210405582.6A CN114607187B (en) | 2022-04-18 | 2022-04-18 | Shaft type underground parking garage construction method of cast-in-situ supporting structure under slurry |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114607187A CN114607187A (en) | 2022-06-10 |
| CN114607187B true CN114607187B (en) | 2023-10-31 |
Family
ID=81869603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210405582.6A Active CN114607187B (en) | 2022-04-18 | 2022-04-18 | Shaft type underground parking garage construction method of cast-in-situ supporting structure under slurry |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114607187B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101139838A (en) * | 2007-10-15 | 2008-03-12 | 上海市隧道工程轨道交通设计研究院 | Construction method for high artesian area ultra-deep foundation pit |
| CN102677653A (en) * | 2012-06-05 | 2012-09-19 | 中国建筑第八工程局有限公司 | Variable cross section construction method for underground continuous wall |
| CN110700270A (en) * | 2019-09-29 | 2020-01-17 | 上海市机械施工集团有限公司 | Construction method for non-drainage earthwork excavation of ultra-deep foundation pit |
| CN110805053A (en) * | 2019-11-05 | 2020-02-18 | 武汉市市政建设集团有限公司 | Construction method of deep foundation pit open caisson self-sinking supporting system |
| CN112502133A (en) * | 2020-12-11 | 2021-03-16 | 天长市飞龙金属制品有限公司 | Construction process of building underground continuous wall based on steel grating |
| CN112681376A (en) * | 2020-12-31 | 2021-04-20 | 北京中岩智泊科技有限公司 | Construction method of shaft type underground stereo garage |
-
2022
- 2022-04-18 CN CN202210405582.6A patent/CN114607187B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101139838A (en) * | 2007-10-15 | 2008-03-12 | 上海市隧道工程轨道交通设计研究院 | Construction method for high artesian area ultra-deep foundation pit |
| CN102677653A (en) * | 2012-06-05 | 2012-09-19 | 中国建筑第八工程局有限公司 | Variable cross section construction method for underground continuous wall |
| CN110700270A (en) * | 2019-09-29 | 2020-01-17 | 上海市机械施工集团有限公司 | Construction method for non-drainage earthwork excavation of ultra-deep foundation pit |
| CN110805053A (en) * | 2019-11-05 | 2020-02-18 | 武汉市市政建设集团有限公司 | Construction method of deep foundation pit open caisson self-sinking supporting system |
| CN112502133A (en) * | 2020-12-11 | 2021-03-16 | 天长市飞龙金属制品有限公司 | Construction process of building underground continuous wall based on steel grating |
| CN112681376A (en) * | 2020-12-31 | 2021-04-20 | 北京中岩智泊科技有限公司 | Construction method of shaft type underground stereo garage |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114607187A (en) | 2022-06-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108797598A (en) | The construction technology of pre-loaded support struts in a kind of deep basal pit | |
| CN108914931A (en) | A kind of ring-like foundation pile of the vertical shield of assembled and construction method | |
| CN111576431A (en) | Excavation method for foundation pit of four-layer subway station | |
| CN110258582B (en) | Inclined support foundation pit supporting structure based on steel pipe pile and Lassen steel plate and construction method | |
| CN110735600B (en) | Mechanical pore-forming pile construction process for karst geology | |
| CN112502139A (en) | Construction method for excavation of deep pit by three-axis stirring pile curtain water stop and rotary digging cast-in-place pile support | |
| CN104480929B (en) | A kind of pile wall interaction construction method that interlocking pile is applied to permanent outer wall of basement | |
| CN113089652A (en) | Occlusive pile construction method and reinforced structure | |
| CN113737780A (en) | Underwater rock-socketed concrete pile and construction method thereof | |
| CN114108649A (en) | Foundation pit reinforcing construction method for mucky soil layer | |
| CN114263168A (en) | Construction method of rock-socketed diaphragm wall of stratum water-stopping enclosure structure | |
| CN112609690A (en) | Construction method of rotary drilling cast-in-place pile in sea-filling geological complex area | |
| CN114607187B (en) | Shaft type underground parking garage construction method of cast-in-situ supporting structure under slurry | |
| CN114645629A (en) | Shaft type underground parking garage construction method | |
| CN115787642A (en) | Construction method suitable for drilling covering layer easy to collapse | |
| CN113266362B (en) | Top pipe cover excavation construction method for penetrating through existing dense anchor cable area | |
| CN114703831A (en) | Construction method of reinforced concrete cast-in-place pile under complex geological condition | |
| CN212427155U (en) | Tongue-and-groove type prefabricated underground continuous wall structure | |
| CN114635450A (en) | Construction method for permanent steel pipe structural column of covered and excavated station | |
| CN114657974A (en) | Method for quickly splicing cast-in-place pile under complex geological condition | |
| CN114439024A (en) | Steel pipe curtain auxiliary pile foundation pore-forming construction process | |
| CN111576393A (en) | Underground continuous wall construction method near subway | |
| CN114753231B (en) | Frame beam lattice bridge structure crossing underground pipeline and construction method thereof | |
| CN114232638B (en) | Anchor supporting structure | |
| CN113585237B (en) | Diaphragm wall joint and diaphragm wall construction method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |