CN112412480A - Shield working well with depth arrangement and construction method thereof - Google Patents
Shield working well with depth arrangement and construction method thereof Download PDFInfo
- Publication number
- CN112412480A CN112412480A CN202011248036.3A CN202011248036A CN112412480A CN 112412480 A CN112412480 A CN 112412480A CN 202011248036 A CN202011248036 A CN 202011248036A CN 112412480 A CN112412480 A CN 112412480A
- Authority
- CN
- China
- Prior art keywords
- working well
- shallow
- region
- shield
- deep
- 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
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/14—Layout of tunnels or galleries; Constructional features of tunnels or galleries, not otherwise provided for, e.g. portals, day-light attenuation at tunnel openings
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
A shield working well with depth arrangement and a construction method thereof belong to the technical field of shield construction. The shield tunnel comprises a working well, wherein the working well comprises a working well shallow region serving as a shield tunnel starting region and a working well deep region located at the lower portion of one side of the working well shallow region and serving as a shield tunnel receiving region, the working well shallow region and the working well deep region are respectively isolated from surrounding geology through a shallow region enclosure wall and a deep region enclosure wall, and a depth separation enclosure wall is arranged between the working well shallow region and the working well deep region. According to the shield tunneling machine, the shield tunneling work area is divided into a work well shallow area and a work well deep area, so that the condition that tunnels at two ends of a work well have large height difference is overcome; the shallow working well region and the deep working well region are respectively used as a shield tunnel starting region and a shield tunnel receiving region, so that the characteristics of fast construction in the shallow region and slow construction in the deep region are fully utilized, and the construction efficiency is improved; in addition, according to the depths of foundation pits in different areas, the corresponding enclosure walls are arranged, the size of the enclosure walls is reasonably designed, and the waste of materials is avoided.
Description
Technical Field
The invention belongs to the technical field of shield construction, and particularly relates to a shield working well with a shallow depth arrangement and a construction method thereof.
Background
At present, shield method construction has been widely adopted by urban tunnel engineering due to its advantages of small influence on ground traffic, fast construction progress, safety, environmental protection, less disturbance to residents and the like. Normally, the elevations of the tunnels at the two ends of the working well are basically equal, but in some areas with complex surrounding environments, important building structures such as existing tunnels and pipelines which cannot be moved and changed exist, and at the moment, the tunnels at the two ends of the working well cannot be arranged at the same elevation or even at the same structural layer.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide a shield working well which is suitable for deep arrangement and has large height difference between tunnels at two ends of the working well and a construction method thereof.
The invention provides the following technical scheme: a shield structure working well that depth was arranged, includes the working well that is located below the earth's surface, its characterized in that: the working well comprises a working well shallow area serving as a shield tunnel starting area and a working well deep area located on the lower portion of one side of the working well shallow area and serving as a shield tunnel receiving area, the working well shallow area and the working well deep area are respectively isolated from surrounding geology through a shallow area enclosure wall and a deep area enclosure wall, and a deep and shallow separation enclosure wall is arranged between the working well shallow area and the working well deep area.
The shield working well with the depth arrangement is characterized in that the height of the top of the shallow area of the working well is the same as the height of the top of the deep area of the working well.
The shield working well with the depth arrangement is characterized in that the length of the lower end of the shallow area enclosing wall extending out of the bottom of the shallow area of the working well is 0.2-2 times of the depth of a foundation pit in the shallow area of the working well, and the length of the lower end of the deep area enclosing wall extending out of the bottom of the deep area of the working well is 0.2-2 times of the depth of the foundation pit in the deep area of the working well.
The shield working well with the depth arrangement is characterized in that the top elevation of the depth separation enclosure wall is the same as the bottom elevation of the shallow region of the working well, and the length of the lower end of the depth separation enclosure wall extending out of the bottom of the deep region of the working well is 0.2-2 times of the depth difference between the foundation pit of the shallow region of the working well and the foundation pit of the deep region of the working well.
The shield working well with the shallow depth arrangement is characterized in that bottom plates are arranged at the bottom of the shallow region of the working well and the bottom of the deep region of the working well.
The shield working well with the shallow depth arrangement is characterized in that a shield initial opening and a shield receiving opening for shield construction are respectively arranged on the lateral parts of the shallow region and the deep region of the working well.
A construction method of a shield working well with a shallow depth is characterized by comprising the following construction steps:
step 1, constructing the enclosure wall according to the required depth: comprises a shallow area enclosure wall, a deep area enclosure wall and a deep and shallow separation enclosure wall;
step 3, constructing a bottom plate of a shallow region of the working well and the structure above the bottom plate, and reserving a shield starting port during construction; constructing a structural beam, a structural plate and the above structures of a working well deep area corresponding to the elevation, and reserving a shield machine hoisting port during construction;
4, constructing corresponding shield starting on a bottom plate of the shallow region of the working well;
step 7, receiving the shield in the deep area of the working well, and hoisting the shield machine out of the working well by using a reserved shield machine hoisting port;
and 8, pouring the reserved shield machine hoisting port.
By adopting the technology, compared with the prior art, the invention has the following beneficial effects:
according to the shield tunneling machine, the shield tunneling work area is divided into a work well shallow area and a work well deep area, so that the condition that tunnels at two ends of a work well have large height difference is overcome; the shallow working well region and the deep working well region are respectively used as a shield tunnel starting region and a shield tunnel receiving region, so that the characteristics of fast construction in the shallow region and slow construction in the deep region are fully utilized, and the construction efficiency is improved; in addition, according to the depths of foundation pits in different areas, the corresponding enclosure walls are arranged, the size of the enclosure walls is reasonably designed, and the waste of materials is avoided.
Drawings
FIG. 1 is a schematic sectional front view of the present invention;
FIG. 2 is a schematic top view of the present invention;
FIG. 3 is a schematic cross-sectional view taken along section A-A of FIG. 1;
FIG. 4 is a schematic cross-sectional view taken along section B-B of FIG. 1;
FIG. 5 is a schematic view of the construction structure in the construction step 4 of the present invention.
In the figure: 1. a shallow area of the working well; 11. shallow enclosure walls; 2. a working well depth zone; 21. a deep area enclosure wall; 3. the depth partitions the enclosure wall; 4. a base plate; 5. a shield starting port; 6. a shield receiving port; 7. and (5) a shield tunneling machine hoisting port.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
On the contrary, the invention is intended to cover alternatives, modifications, equivalents and alternatives which may be included within the spirit and scope of the invention as defined by the appended claims. Furthermore, in the following detailed description of the present invention, certain specific details are set forth in order to provide a better understanding of the present invention. It will be apparent to one skilled in the art that the present invention may be practiced without these specific details.
Referring to fig. 1-5, a shield working well with shallow depth arrangement comprises a working well shallow region 1 and a working well deep region 2, wherein the working well shallow region 1 is used as a shield tunnel initiation region, the working well deep region 2 is arranged at the lower part of one side of the working well shallow region 1 and is used as a shield tunnel receiving region, bottom plates 4 are arranged at the bottoms of the working well shallow region 1 and the working well deep region 2, and a shield initiation port 5 and a shield receiving port 6 for shield construction are respectively arranged at the side parts.
The top elevation of the shallow working well area 1 is the same as that of the deep working well area 2.
The shallow region 1 of the working well and the deep region 2 of the working well are respectively isolated from the surrounding geology by a shallow region enclosure wall 11 and a deep region enclosure wall 21, and a deep and shallow separation enclosure wall 3 is arranged between the shallow region 1 of the working well and the deep region 2 of the working well.
The length of the lower end of the shallow area enclosure wall 11 extending out of the bottom of the shallow area 1 of the working well is 0.2-2 times of the depth of a foundation pit of the shallow area 1 of the working well, and when the lower end of the shallow area enclosure wall 11 is located in silt and mucky soil, the maximum value is obtained; the length of the lower end of the deep area enclosure wall 21 extending out of the bottom of the working well deep area 2 is 0.2-2 times of the depth of a foundation pit in the working well deep area 2, and when the lower end of the deep area enclosure wall 21 is located in silt and mucky soil, the maximum value is obtained.
The top elevation of the depth separating enclosure wall 3 is equal to the bottom elevation of the shallow region 1 of the working well, and the bottom elevation is equal to the bottom elevation of the deep region enclosure wall 21.
The construction steps of the structure of the invention are as follows:
step 1, constructing the enclosure wall according to the required depth: comprises a shallow area enclosure wall 11, a deep area enclosure wall 21 and a depth separating enclosure wall 3;
step 3, constructing a bottom plate 4 of the shallow region 1 of the working well and the structures above the bottom plate, and reserving a shield starting port 5 during construction; constructing a structural beam, a structural plate and the above structures of the working well deep area 2 corresponding to the elevation, and reserving a shield machine hoisting port 7 during construction;
step 7, receiving the shield in the working well deep area 2, and hoisting the shield machine out of the working well by using a reserved shield machine hoisting port 7;
and 8, pouring the reserved shield machine hoisting port 7.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. A shield structure working well that depth was arranged, includes the working well that is located below the earth's surface, its characterized in that: the working well comprises a working well shallow region (1) serving as a shield tunnel starting region and a working well deep region (2) located at the lower portion of one side of the working well shallow region (1) and serving as a shield tunnel receiving region, the working well shallow region (1) and the working well deep region (2) are respectively isolated from surrounding geology through a shallow region enclosure wall (11) and a deep region enclosure wall (21), and a deep and shallow separation enclosure wall (3) is arranged between the working well shallow region (1) and the working well deep region (2).
2. A shield working well of a shallow arrangement according to claim 1, characterized in that the elevation of the top of the shallow working well area (1) is the same as the elevation of the top of the deep working well area (2).
3. The shield working well arranged according to the depth of claim 1 or 2, wherein the length of the lower end of the shallow enclosure wall (11) extending out of the bottom of the shallow working well (1) is 0.2-2 times of the depth of the foundation pit of the shallow working well (1), and the length of the lower end of the deep enclosure wall (21) extending out of the bottom of the deep working well (2) is 0.2-2 times of the depth of the foundation pit of the deep working well (2).
4. The shield working well arranged according to the depth of claim 2, wherein the top elevation of the depth separating enclosure wall (3) is the same as the bottom elevation of the working well shallow region (1), and the length of the lower end of the depth separating enclosure wall (3) extending out of the bottom of the working well deep region (2) is 0.2-2 times of the depth difference between the foundation pit of the working well shallow region (1) and the foundation pit of the working well deep region (2).
5. A shield working well arranged according to the depth of the working well 1, characterized in that the bottom of the working well shallow area (1) and the bottom of the working well deep area (2) are provided with bottom plates (4).
6. The shield working well of claim 1, characterized in that the side parts of the working well shallow area (1) and the working well deep area (2) are respectively provided with a shield initial opening (5) and a shield receiving opening (6) for shield construction.
7. A construction method of a shield working well with a shallow depth is characterized by comprising the following construction steps:
step 1, constructing the enclosure wall according to the depth of construction needs: comprises a shallow area enclosure wall (11), a deep area enclosure wall (21) and a depth separating enclosure wall (3);
step 2, synchronously excavating foundation pits in the shallow area (1) and the deep area (2) of the construction working well to the bottom mark of the shallow area (1) of the working well;
step 3, constructing a bottom plate (4) of the shallow area (1) of the working well and structures above the bottom plate, and reserving a shield starting port (5) during construction; constructing a structural beam, a structural plate and the above structures of the working well deep area (2) corresponding to the elevation, and reserving a shield machine hoisting port (7) during construction;
step 4, constructing corresponding to a shield starting of a bottom plate (4) of the shallow working well area (1);
step 5, performing shield initial tunneling construction in a shield tunneling working area on a structural slab with the corresponding elevation of the bottom plate of the shallow area within the range of the working well deep area (2) and on the bottom plate of the shallow area corresponding to the elevation of the working well shallow area (1), and performing foundation pit cover excavation construction of the working well deep area (2) to the bottom of the working well deep area (2) by using a reserved shield machine hoisting port (7) as a vertical transportation port;
step 6, constructing a bottom plate (4) of a deep area (2) of the working well and a side wall in the deep area range, and reserving a shield machine hoisting port (7) during construction;
step 7, receiving the shield in the deep area (2) of the working well, and hoisting the shield machine out of the working well by using a reserved shield machine hoisting port (7);
and 8, pouring the reserved shield machine hoisting port (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011248036.3A CN112412480A (en) | 2020-11-10 | 2020-11-10 | Shield working well with depth arrangement and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011248036.3A CN112412480A (en) | 2020-11-10 | 2020-11-10 | Shield working well with depth arrangement and construction method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112412480A true CN112412480A (en) | 2021-02-26 |
Family
ID=74781305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011248036.3A Pending CN112412480A (en) | 2020-11-10 | 2020-11-10 | Shield working well with depth arrangement and construction method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112412480A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114016513A (en) * | 2021-10-26 | 2022-02-08 | 南京林业大学 | Complex foundation pit group supporting system and time-sequence-sharing excavation method |
-
2020
- 2020-11-10 CN CN202011248036.3A patent/CN112412480A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114016513A (en) * | 2021-10-26 | 2022-02-08 | 南京林业大学 | Complex foundation pit group supporting system and time-sequence-sharing excavation method |
| CN114016513B (en) * | 2021-10-26 | 2023-03-07 | 南京林业大学 | Time-sequence-sharing excavation method of complex foundation pit group supporting system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105888703B (en) | Super Shallow Covered Metro Station construction method under lateral canopy lid is performed in micro- pilot tunnel | |
| CN105298507A (en) | Underground pipe gallery construction method of machine performing open excavation on upper portion and tunneling on lower portion | |
| CN106013053B (en) | A kind of steel sheet pile construction method for supporting for being used to build underground garage open caisson | |
| CN111236241B (en) | Weak water-rich stratum subway foundation pit reinforcing excavation method based on half-cover excavation method | |
| CN107119691A (en) | One kind is applied to the square deep basal pit of the high pressure-bearing of rich water sand gravel layer and its excavation method | |
| CN105155516B (en) | The method of construction drill bored concrete pile before making an overall screening underground obstacle | |
| CN105239578B (en) | Water-rich sand layer deep foundation pit underwater construction method | |
| CN113463670A (en) | Water pumping and draining method and water pumping and draining structure for deep foundation pit bottom plate construction | |
| CN101793023A (en) | Foundation pit construction method | |
| CN103321233B (en) | The preparation method of groundwater resources retracting device in landslide deep layer draining and sliding mass | |
| CN108842820A (en) | A kind of subway station transfer node section foundation ditch construction method | |
| CN112412480A (en) | Shield working well with depth arrangement and construction method thereof | |
| CN204825923U (en) | Relay formula underground structure | |
| CN207047796U (en) | A kind of light-duty mud-rock flow arch blocking dam | |
| CN107023021B (en) | A kind of design and construction method of flexible compound Diaphragm Wall Support Structure | |
| CN107700434A (en) | A kind of dome grating formula armored concrete mud-rock flow blocking dam and its construction process | |
| CN213980794U (en) | Shield construction working well that depth was arranged | |
| CN114215066B (en) | Collapse-prevention excavation construction method for side wall of open cut foundation pit | |
| US4422798A (en) | Process for construction of an underground structure and the structure thus obtained | |
| CN105002912A (en) | Construction method for splicing type caisson structure based on prefabricated hollow piles | |
| CN214832836U (en) | Caisson type underground garage construction equipment | |
| CN205502070U (en) | A dual -purpose underground gallery structure | |
| CN108755660A (en) | One kind entering 30 meters of construction method of underground continuous wall of rock close to subway | |
| CN210459300U (en) | Enclosure structure for covering and digging station | |
| CN210195752U (en) | Underground structure is built to arched cover undercut |
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 |