CN102444089B - Prefabricated part assembled windproof open cut tunnel in gale region and joint assembling and connecting method thereof - Google Patents
Prefabricated part assembled windproof open cut tunnel in gale region and joint assembling and connecting method thereof Download PDFInfo
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- CN102444089B CN102444089B CN 201210001447 CN201210001447A CN102444089B CN 102444089 B CN102444089 B CN 102444089B CN 201210001447 CN201210001447 CN 201210001447 CN 201210001447 A CN201210001447 A CN 201210001447A CN 102444089 B CN102444089 B CN 102444089B
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Abstract
The invention relates to a prefabricated part assembled windproof open cut tunnel in the gale region and a joint assembling and connecting method thereof. The open cut tunnel structure manufactured by splicing prefabricated parts is adopted and the joints are the weak links and are complex in force bearing. The method comprises the following steps of: dividing a windproof open cut tunnel into 2m or 3m annular parts along the longitudinal direction and prefabricating the parts, wherein each annular part is divided into a vault block, two hance blocks and two side wall blocks; adopting an embedded post-poured concrete rigid connection method to connect side wall fabricated parts to a foundation longitudinal beam; adopting a post-poured concrete rigid connection method to connect arch prefabricated parts to arch springing prefabricated parts; adopting a bolted clamp plate type connection method to connect the arch springing prefabricated parts to the side wall fabricated parts; and connecting rings in each unit with mortises. The open cut tunnel and the method have the following advantages that: the pertinent connection methods are selected to splice the prefabricated parts of the open cut tunnel in the positions with different force bearing conditions, thus greatly speeding up the construction progress, ensuring the stability of the overall structure of the spliced open cut tunnel, meeting the rigidity requirement of the joints and ensuring safety and reliability in connection.
Description
Technical field
The invention belongs to the traffic engineering technical field, be specifically related to the windproof open cut tunnel of a kind of strong wind district splicing prefabricated components formula and joint assembly unit method of attachment thereof.
Background technology
In the strong wind area, as Bai Lifeng district and the three Shi Lifeng districts in Xinjiang, its core space not only wind-force is powerful, and the frequency height of strong wind occurs.The Lan-xing Railway second two-wire passes famous Bai Lifeng district, three Shi Lifeng districts, its wind-force is powerful, maximum wind velocity reaches 60m/s, the annual strong wind fate greater than strong gale in Bai Lifeng district was above 200 days, windburn is very serious, in order to guarantee train safe, quick, normal operation, reduces speed limit to greatest extent and stops wheel, need be with the relative isolation of external environment with environment, thus environment and the external world are independent of each other.Traditional wind shielding structure generally adopts the windbreak that certain altitude is set in the road both sides, can make external environment and the influence of driving within the walls that certain reducing arranged, but effect is not clearly, and long-pending sand phenomenon is serious on the contrary.Windproof open cut tunnel also can effectively solve the problems of the technologies described above, but Bai Lifeng district, three Shi Lifeng district core spaces, be located in the Gobi desert Desert Area, natural environment is abominable, and execution conditions are poor, needs to adopt prefabricated reinforced concrete structure, connection seam between the prefabricated units is the weak link of windproof open cut tunnel structure, stressed complexity is the key of open cut tunnel design and construction, and is very big to the stress influence of open cut tunnel structure.
Summary of the invention
The purpose of this invention is to provide a kind of structural integrity and the windproof open cut tunnel of strong wind district splicing prefabricated components formula that is connected durability and joint assembly unit method of attachment thereof that can effectively improve between spliced windproof open cut tunnel prefabricated units.
The technical solution adopted in the present invention is:
The joint assembly unit method of attachment of the windproof open cut tunnel of strong wind district splicing prefabricated components formula is characterized in that:
Realized by following steps:
Step 1: windproof open cut tunnel longitudinally is separated into 2m or the long annular construction member of 3m, and every ring divides five, the vault piece in the middle of namely the arch of arc is divided into and the haunch piece of both sides, the abutment wall piece of both sides; Vault piece, haunch piece and abutment wall piece all adopt prefabricated units;
Step 2: the pouring concrete mode that is rigidly connected is connected to abutment wall piece prefabricated units on the basic longeron after adopting flush type, the joint of abutment wall piece prefabricated units arranges the main muscle of the connection that laterally exposes, the joint of basis longeron arranges the main muscle of the connection that vertically exposes, after abutment wall piece prefabricated units place the holddown groove of basic longeron top interior, laterally connecting reinforcement is connected with vertical connecting reinforcement racking seizing, builds the microdilatancy pea gravel concreten on it;
Step 3: adopt the back pouring concrete mode that is rigidly connected that vault piece prefabricated units are connected on the haunch piece prefabricated units, the joint of vault piece prefabricated units and haunch piece prefabricated units all is embedded with and is connected the shaped steel anchor plate, the inboard that connects the shaped steel anchor plate arranges and connects the shaped steel anchor bar, the arranged outside that connects the shaped steel anchor plate connects shaped steel, after will connecting shaped steel and be connected and fixed by screw or welding, build the microdilatancy pea gravel concreten on it, wherein bury the main muscle of connection underground;
Step 4: adopt the board-like connected mode of bolt clip that haunch piece prefabricated units are connected on the abutment wall piece prefabricated units, the joint of haunch piece prefabricated units and abutment wall piece prefabricated units all is provided with the anchor bar that exposes, on the both sides sidewall of the joint of haunch piece prefabricated units and abutment wall piece prefabricated units pre-embedded steel slab is set all, anchor bar is set on the pre-embedded steel slab, be welded to connect steel plate outside two pre-embedded steel slabs up and down, and be connected and fixed pre-embedded bolt hole stiffener around the bolt hole with connecting bolt;
Step 5: vault piece prefabricated units, two haunch piece prefabricated units and two abutment wall piece prefabricated units connect into an annular construction member, initial ring, several standard rings and an end-rings are formed a linkage unit, ring joint between each annular construction member is set to " L " shape tongue and groove, and tongue-and-groove connects; Deformation joint is set between the linkage unit.
The windproof open cut tunnel of strong wind district splicing prefabricated components formula that joint assembly unit method of attachment as described obtains.
The present invention has the following advantages:
Manufacture method of the present invention, select for use connected mode targetedly that the prefabricated units of open cut tunnel are spliced in the different position of stress condition, guaranteed the integrally-built stability of spliced open cut tunnel, satisfied the rigidity requirement of seam, connect safe and reliable, construction speed is fast, the strong wind district operation that the condition that is applicable to is comparatively abominable, and operation maintenance work amount is little.
Description of drawings
Fig. 1 is pouring concrete rigid joint figure behind the arch.
Fig. 2 is the I-I sectional drawing among Fig. 1.
Fig. 3 is the II-II sectional drawing among Fig. 1.
Fig. 4 is arch springing joint plane outspread drawing.
Fig. 5 is arch springing joint sectional drawing.
Fig. 6 is foundation joint plane outspread drawing.
Fig. 7 is the I-I sectional drawing among Fig. 6.
Fig. 8 is the II-II sectional drawing among Fig. 6.
Fig. 9 cuts open figure for vertical tongue-and-groove connects.
Figure 10 is the A portion enlarged drawing among Fig. 9.
Among the figure, 1-vault piece prefabricated units, 2-connects main muscle, and 3-connects shaped steel, 4-connects the shaped steel anchor plate, and 5-connects shaped steel anchor bar, 6-microdilatancy pea gravel concreten, 7-haunch piece prefabricated units, 8-abutment wall piece prefabricated units, the 9-connecting bolt, 10-connects steel plate, 11-pre-embedded steel slab, the 12-anchor bar, 13-bolt hole stiffener, 14-basis longeron, 15-deformation joint, 16-connect main muscle, 17-microdilatancy pea gravel concreten, the initial ring of 18-, 19-standard ring, 20-end-rings.
The specific embodiment
The present invention will be described in detail below in conjunction with the specific embodiment.
The joint assembly unit method of attachment of the windproof open cut tunnel of strong wind of the present invention district splicing prefabricated components formula is realized by following steps:
Step 1: windproof open cut tunnel longitudinally is separated into 2m or the long annular construction member of 3m, and every ring divides five, the vault piece in the middle of namely the arch of arc is divided into and the haunch piece of both sides, the abutment wall piece of both sides; Vault piece, haunch piece and abutment wall piece all adopt prefabricated units.
Step 2: the pouring concrete mode that is rigidly connected is connected to abutment wall piece prefabricated units 8 on the basic longeron 14 after adopting flush type, the joint of abutment wall piece prefabricated units 8 arranges the main muscle 16 of the connection that laterally exposes, the joint of basis longeron 14 arranges the main muscle 16 of the connection that vertically exposes, after abutment wall piece prefabricated units 8 place the holddown groove of basic longeron 14 tops interior, laterally connecting reinforcement is connected with vertical connecting reinforcement racking seizing, builds microdilatancy pea gravel concreten 17 on it.
Step 3: adopt the back pouring concrete mode that is rigidly connected that vault piece prefabricated units 1 are connected on the haunch piece prefabricated units 7, the joint of vault piece prefabricated units 1 and haunch piece prefabricated units 7 all is embedded with and is connected shaped steel anchor plate 4, the inboard that connects shaped steel anchor plate 4 arranges and connects shaped steel anchor bar 5, the arranged outside that connects shaped steel anchor plate 4 connects shaped steel 3, after will connecting shaped steel 3 and be connected and fixed by screw or welding, build microdilatancy pea gravel concreten 17 on it, wherein bury the main muscle 2 of connection underground.
Step 4: adopt the board-like connected mode of bolt clip that haunch piece prefabricated units 7 are connected on the abutment wall piece prefabricated units 8, the joint of haunch piece prefabricated units 7 and abutment wall piece prefabricated units 8 all is provided with the anchor bar 12 that exposes, on the both sides sidewall of the joint of haunch piece prefabricated units 7 and abutment wall piece prefabricated units 8 pre-embedded steel slab 11 is set all, anchor bar 12 is set on the pre-embedded steel slab 11, be welded to connect steel plate 10 in two pre-embedded steel slab 11 outsides up and down, and be connected and fixed pre-embedded bolt hole stiffener 13 around the bolt hole with connecting bolt 9.
Step 5: vault piece prefabricated units 1, two haunch piece prefabricated units 7 and two abutment wall piece prefabricated units 8 connect into an annular construction member, initial ring 18, several standard rings 19 and an end-rings 20 are formed a linkage unit, ring joint between each annular construction member is set to " L " shape tongue and groove, and tongue-and-groove connects; Deformation joint 15 is set between the linkage unit.
Claims (2)
1. the joint assembly unit method of attachment of the windproof open cut tunnel of strong wind district splicing prefabricated components formula is characterized in that:
Realized by following steps:
Step 1: windproof open cut tunnel longitudinally is separated into 2m or the long annular construction member of 3m, and every ring divides five, the vault piece in the middle of namely the arch of arc is divided into and the haunch piece of both sides, the abutment wall piece of both sides; Vault piece, haunch piece and abutment wall piece all adopt prefabricated units;
Step 2: the pouring concrete mode that is rigidly connected is connected to abutment wall piece prefabricated units (8) on the basic longeron (14) after adopting flush type, the joint of abutment wall piece prefabricated units (8) arranges the main muscle of the connection that laterally exposes (16), the joint of basis longeron (14) arranges the main muscle of the connection that vertically exposes (16), after abutment wall piece prefabricated units (8) place the holddown groove of basic longeron (14) top interior, laterally connecting reinforcement is connected with vertical connecting reinforcement racking seizing, builds microdilatancy pea gravel concreten (17) on it;
Step 3: adopt the back pouring concrete mode that is rigidly connected that vault piece prefabricated units (1) are connected on the haunch piece prefabricated units (7), the joint of vault piece prefabricated units (1) and haunch piece prefabricated units (7) all is embedded with and is connected shaped steel anchor plate (4), the inboard that connects shaped steel anchor plate (4) arranges and connects shaped steel anchor bar (5), the arranged outside that connects shaped steel anchor plate (4) connects shaped steel (3), after will connecting shaped steel (3) and be connected and fixed by screw or welding, build microdilatancy pea gravel concreten (17) on it, wherein bury connection main muscle (2) underground;
Step 4: adopt the board-like connected mode of bolt clip that haunch piece prefabricated units (7) are connected on the abutment wall piece prefabricated units (8), the joint of haunch piece prefabricated units (7) and abutment wall piece prefabricated units (8) all is provided with the anchor bar (12) that exposes, pre-embedded steel slab (11) all is set on the both sides sidewall of the joint of haunch piece prefabricated units (7) and abutment wall piece prefabricated units (8), anchor bar (12) is set on the pre-embedded steel slab (11), be welded to connect steel plate (10) outside two pre-embedded steel slabs (11) up and down, and be connected and fixed pre-embedded bolt hole stiffener (13) around the bolt hole with connecting bolt (9);
Step 5: vault piece prefabricated units (1), two haunch piece prefabricated units (7) and two abutment wall piece prefabricated units (8) connect into an annular construction member, an initial ring (18), several standard rings (19) and an end-rings (20) are formed a linkage unit, ring joint between each annular construction member is set to " L " shape tongue and groove, and tongue-and-groove connects; Deformation joint (15) is set between the linkage unit.
2. the windproof open cut tunnel of strong wind district splicing prefabricated components formula that obtains of joint assembly unit method of attachment as claimed in claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210001447 CN102444089B (en) | 2012-01-05 | 2012-01-05 | Prefabricated part assembled windproof open cut tunnel in gale region and joint assembling and connecting method thereof |
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| CN 201210001447 CN102444089B (en) | 2012-01-05 | 2012-01-05 | Prefabricated part assembled windproof open cut tunnel in gale region and joint assembling and connecting method thereof |
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| CN102444089B true CN102444089B (en) | 2013-09-25 |
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| CN111456759A (en) * | 2020-01-23 | 2020-07-28 | 中铁二院工程集团有限责任公司 | Assembled tunnel lining structure |
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| CN102277839A (en) * | 2011-04-29 | 2011-12-14 | 中铁二院工程集团有限责任公司 | Open hole construction additionally arranged on existing electrified railway and rapid construction method thereof |
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Inventor after: Li Guoliang Inventor after: Tian Peng Inventor after: Yu Jie Inventor after: Tan Yongqing Inventor after: Jia Yuanxia Inventor after: Wang Zhengming Inventor after: Huang Shuanglin Inventor after: He Yongwang Inventor after: Yang Guozhu Inventor after: Jin Baocheng Inventor after: Yan Wenxiang Inventor after: Liu Peishuo Inventor after: Liu Cheng Inventor before: Li Guoliang Inventor before: Li Lei Inventor before: Tian Peng Inventor before: Yu Jie Inventor before: Tan Yongqing Inventor before: Song Jiahui Inventor before: Jia Yuanxia Inventor before: Zhang Tai Inventor before: Huang Shuanglin Inventor before: He Yongwang Inventor before: Yang Guozhu Inventor before: Jin Baocheng Inventor before: Yan Wenxiang Inventor before: Liang Wenhao Inventor before: Liu Peishuo Inventor before: Liu Cheng |
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Free format text: CORRECT: INVENTOR; FROM: LI GUOLIANG HUANG SHUANGLIN HE YONGWANG YANG GUOZHU JIN BAOCHENG YAN WENXIANG LIANG WENHAO LIU PEISHUO LIU CHENG LI LEI TIAN PENG YU JIE TAN YONGQING SONG JIAHUI JIA YUANXIA ZHANG TAI TO: LI GUOLIANG WANG ZHENGMING HUANG SHUANGLIN HE YONGWANG YANG GUOZHU JIN BAOCHENG YAN WENXIANG LIU PEISHUO LIU CHENG TIAN PENG YU JIE TAN YONGQING JIA YUANXIA |
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