CN210622813U - Underground pressure shield water delivery tunnel lining structure - Google Patents
Underground pressure shield water delivery tunnel lining structure Download PDFInfo
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- CN210622813U CN210622813U CN201921612953.8U CN201921612953U CN210622813U CN 210622813 U CN210622813 U CN 210622813U CN 201921612953 U CN201921612953 U CN 201921612953U CN 210622813 U CN210622813 U CN 210622813U
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Abstract
The utility model discloses an underground pressure shield constructs water delivery hole lining cutting structure sets up the steel pipe inside lining in the prefabricated section of jurisdiction of concrete, sets up the concrete tube socket under the steel pipe inside lining, sets up water drainage tank in concrete tube socket both sides, and the steel pipe inside lining is formed with the cavity with the prefabricated section of jurisdiction of concrete. The thickness of the concrete prefabricated segment is the conventional segment of the shield tunnel, and the thickness of the steel pipe lining meets the design of the exposed pipe. The utility model discloses saved the concrete engineering volume between a large amount of interior outer linings, complicated drainage structures between the interior outer lining has been simplified greatly, not only the investment reduces, and the construction degree of difficulty reduces moreover, because space is great between the interior outer lining, the stifled and inefficacy problem of becoming silted up of the complicated narrow and small drainage structures of tradition has been avoided, because interior outer lining all considers according to independent atress, the atress is simple, the steel pipe can design according to the bright pipe, reduce design work load, it is safe, high-efficient, the cost is lower, the underground of easily constructing presses shield structure water delivery tunnel lining cutting structure.
Description
Technical Field
The utility model relates to a lining cutting structure, especially a underground pressure shield constructs water delivery tunnel lining cutting structure.
Background
In recent years, with the development of social economy, the problem of water shortage in cities is more and more serious, and in order to solve the problem, a large number of water transfer projects are built to meet the requirements of urban life and industrial water supply. In order to make water reach the water receiving point conveniently and quickly, the lines of the water diversion projects have to cross the surrounding or central areas of the city, the areas often have a large amount of ground facilities and buildings, and the removal cost and difficulty are very high. In order to reduce a large amount of removal and land acquisition cost, the engineering has to adopt the form of an underground tunnel, namely, a shield machine is utilized to excavate, then the pipe piece lining is carried out, the requirement of forming the tunnel is met, because the pipe piece has poor internal pressure bearing capacity, the lining is carried out after the pipe piece lining, the lining bears the internal water pressure, and prestressed concrete, steel pipes, common reinforced concrete and the like are selected for lining materials according to the factors such as the internal water pressure and the like.
In order to reduce the influence of internal water pressure on the outer lining pipe piece, the inner lining and the outer lining are generally isolated, namely, the inner lining and the outer lining are stressed independently in the operation period, the outer lining mainly bears external load, and the inner lining mainly bears internal water pressure. In the material of the inner lining, the steel pipe is mostly adopted due to the advantages of high internal pressure bearing capacity, water seepage resistance and the like, for example, the water diversion engineering of the west river of Guangdong is built, and the water resource allocation engineering of the Zhujiang delta is built, the steel lining structure is adopted, namely, the outer lining is a shield segment, the inner lining is a steel pipe, the steel pipe is designed according to the plain steel pipe, and in order to keep the stability of the steel pipe, self-compacting concrete is filled between the outer lining and the steel pipe. However, this structure has a problem in that the steel pipe has external pressure resistance. In order to prevent the instability of the steel pipe caused by the fact that external water seeps into the gap between the inner lining and the outer lining, a special drainage facility is needed to be arranged between the inner lining and the outer lining to drain away the seeped water, and the structure not only causes the increase of investment and the increase of construction difficulty, but also has the danger of silting and failure. Besides the drainage measures, the outer wall of the steel lining is additionally provided with stiffening rings and other measures so as to improve the external pressure resistance, thereby further increasing the construction difficulty of the project. In order to meet the quality requirement of the backfilled self-compacting concrete, certain thickness and fluidity of the self-compacting concrete need to be ensured, and a certain amount of steel bars may need to be configured in order to ensure the stability and crack resistance of the concrete structure.
Therefore, how to find an underground pressure shield water delivery tunnel lining structure which is simple in construction, capable of reducing concrete consumption, simple in drainage structure, small in design workload, simple in space, simple in liner and outer liner stress and not easy to block is a problem to be solved urgently.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a construction is simple is provided, low cost, and drainage simple structure is difficult for blockking up, and the inside lining is simple with outer lining atress, and the little secret of design work load has the pressure to shield structure water delivery hole lining cutting structure.
In order to solve the above problem, the utility model discloses the technical scheme who adopts is: a steel pipe lining is arranged in a concrete prefabricated pipe piece, a concrete pipe seat is arranged under the steel pipe lining, drainage grooves are formed in two sides of the concrete pipe seat, and a cavity is formed between the steel pipe lining and the concrete prefabricated pipe piece.
The thickness of the concrete prefabricated segment is the conventional segment of the shield tunnel, and the thickness of the steel pipe lining meets the design of the exposed pipe.
The distance between the steel pipe lining and the concrete prefabricated segment is determined according to the construction condition of the steel pipe lining on site.
The concrete pipe seat is cast in place or prefabricated.
The drainage groove is tightly attached to the concrete prefabricated pipe sheet.
The utility model has the advantages that: the construction is simple, the concrete consumption is reduced, the drainage structure is simple, the space is large, the blockage is not easy, the stress of the inner lining and the outer lining is simple, the design workload is small, and the like.
Drawings
FIG. 1 is a schematic diagram of the underground pressure shield water delivery tunnel lining structure of the utility model.
Detailed Description
The invention will be described in further detail with reference to the following drawings and embodiments:
as shown in fig. 1, the utility model discloses a there is shield structure of pressure water delivery hole lining cutting structure in underground, set up steel pipe inside lining 1 in the prefabricated section of jurisdiction of concrete 4, set up concrete tube socket 3 under steel pipe inside lining 1, set up water drainage tank 2 in concrete tube socket 3 both sides, steel pipe inside lining 1 is formed with the cavity with the prefabricated section of jurisdiction of concrete 4.
The thickness of the concrete prefabricated segment 4 is the conventional segment of the shield tunnel, and the thickness of the steel pipe lining 1 meets the design of an exposed pipe.
The distance between the steel pipe lining 1 and the concrete precast segment 4 is determined according to the construction condition of the steel pipe lining 1 on site.
The concrete pipe seat 3 is cast in place or prefabricated.
The drainage channel 2 is tightly attached to the precast concrete segment 4.
In the field construction, firstly, a shield tunneling machine is adopted for tunneling, then the prefabricated concrete segment 4 is arranged, after the prefabricated concrete segment 4 is formed, a concrete tube seat 3 is constructed at the bottom of the prefabricated concrete segment 4, drainage grooves 2 are formed on two sides of the concrete tube seat 3, after the concrete tube seat 3 reaches the age, a steel tube lining 1 is installed on the upper portion of the concrete tube seat 3, and the whole process is completed.
The utility model discloses saved a large amount of interior, the concrete engineering volume between the outer lining, complicated drainage structures between the interior outer lining has been simplified greatly, not only the investment reduces, and the construction degree of difficulty reduces moreover, because space is great between the interior outer lining, the stifled and inefficacy problem of becoming silted up of the complicated narrow and small drainage structures of tradition has been avoided, because interior outer lining all considers according to independent atress, the atress is simple, the steel pipe can design according to the bright pipe, reduce design work volume, it is safe, high-efficient, the cost is lower, the underground of easily constructing presses shield structure water delivery tunnel lining cutting structure.
The above-mentioned embodiments are only used for illustrating the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the same, and the scope of the present invention should not be limited by the embodiment, i.e. all equivalent changes or modifications made by the spirit of the present invention are still within the scope of the present invention.
Claims (5)
1. The utility model provides an underground pressure shield constructs water delivery hole lining cutting structure which characterized in that sets up steel pipe inside lining (1) in precast concrete section of jurisdiction (4), sets up concrete tube socket (3) under steel pipe inside lining (1), sets up water drainage tank (2) in concrete tube socket (3) both sides, and steel pipe inside lining (1) and precast concrete section of jurisdiction (4) are formed with the cavity.
2. The underground pressure shield water delivery tunnel lining structure according to claim 1, wherein the thickness of the concrete prefabricated segment (4) is the conventional segment of the shield tunnel, and the thickness of the steel pipe lining (1) meets the design of an exposed pipe.
3. The underground pressure shield water delivery tunnel lining structure according to claim 1, wherein the distance between the steel pipe lining (1) and the concrete precast segment (4) is determined according to the construction condition of the steel pipe lining (1) on site.
4. The underground pressure shield water conveying tunnel lining structure according to claim 1, wherein the concrete pipe seats (3) are cast in place or prefabricated.
5. The underground pressure shield water delivery tunnel lining structure according to claim 1, wherein the drainage grooves (2) are tightly attached to the concrete precast segment (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921612953.8U CN210622813U (en) | 2019-09-25 | 2019-09-25 | Underground pressure shield water delivery tunnel lining structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921612953.8U CN210622813U (en) | 2019-09-25 | 2019-09-25 | Underground pressure shield water delivery tunnel lining structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210622813U true CN210622813U (en) | 2020-05-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921612953.8U Active CN210622813U (en) | 2019-09-25 | 2019-09-25 | Underground pressure shield water delivery tunnel lining structure |
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| CN (1) | CN210622813U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110469344A (en) * | 2019-09-25 | 2019-11-19 | 水利部水利水电规划设计总院 | There is pressure shield conveyance tunnel liner structure in underground |
-
2019
- 2019-09-25 CN CN201921612953.8U patent/CN210622813U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110469344A (en) * | 2019-09-25 | 2019-11-19 | 水利部水利水电规划设计总院 | There is pressure shield conveyance tunnel liner structure in underground |
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