CN104314106A - Underground diaphragm wall with joint water stop and filling vacancy structure and construction method thereof - Google Patents
Underground diaphragm wall with joint water stop and filling vacancy structure and construction method thereof Download PDFInfo
- Publication number
- CN104314106A CN104314106A CN201410634172.4A CN201410634172A CN104314106A CN 104314106 A CN104314106 A CN 104314106A CN 201410634172 A CN201410634172 A CN 201410634172A CN 104314106 A CN104314106 A CN 104314106A
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- China
- Prior art keywords
- diaphragm wall
- underground diaphragm
- induration
- cyclotomy
- depth
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/16—Arrangement or construction of joints in foundation structures
-
- 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
Abstract
Disclosed are an underground diaphragm wall with a joint water stop and filling vacancy structure and a construction method thereof. The underground diaphragm wall with the joint water stop and filling vacancy structure comprises serially connected underground diaphragm walls (1) in a foundation trench, joints (3) between the adjacent underground diaphragm walls, and consolidated objects (2) jetted on joint portions outside the foundation trench; the consolidated objects (2) are big cutting circle shaped, the diameters of the big cutting circles are 0.6-1.0m, the depths of the big cutting circles are the same with those of the underground diaphragm walls (1), and secant (4) lengths of the big cutting circles are transverse overlapping lengths of the consolidated objects (2) and the underground diaphragm walls (1) and are no less than 500mm. The underground diaphragm wall with the joint water stop and filling vacancy structure can effectively solve construction deficiencies of joints unevenness of adjacent slot walls, water leakage and the like in the underground diaphragm walls, meanwhile cement and sodium silicate seriflux are utilized as injecting paste materials, coagulation time of the cement paste is decreased, the cement paste is prevented to be eroded by underground water and is not easy to consolidate, and water shutoff and seepage-proofing performance of rotary jet consolidated objects are obviously improved.
Description
Technical field
The invention belongs to architecture Foundation Pit Engineering technical field, be specifically related to a kind of band joint seal and fill a vacancy structure diaphragm wall and construction method thereof.
Background technology
Along with the fast development of urban construction, deep-foundation pit engineering gets more and more, and also become increasingly complex changeable, various pattern foundation pit supporting structure mode is emerged in large numbers thereupon.Diaphragm wall because of its Construction Vibration little, wall stiffness is large, good integrity, and speed of application is fast, and can economize the cubic metre of earth and stone, the advantages such as applicability is strong, are widely used in domestic deep-foundation pit engineering field in recent years.Diaphragm wall is constructed in conjunction with contrary sequence method usually, is specially adapted to foundation pit supporting project Deformation control being required to larger urban architecture close quarters.But the construction technology comparatively special because of it and method, in its work progress, if construction method is improper or construction geology condition is special, be easy to occur that adjacent slot section body of wall seam such as can not be alignd and leak at the constructional deficiency.
Summary of the invention
The object of the invention is to overcome diaphragm wall joint seal and problem of filling a vacancy, one is provided can effectively to solve in construction of diaphragm wall process, leaking and the band joint seal of Construction defect problem and the diaphragm wall of structure of filling a vacancy of adjacent slot section seaming position.The present invention also provides the construction method of this diaphragm wall.
The technical scheme realizing the object of the invention is as follows:
With joint seal and the diaphragm wall of structure of filling a vacancy, include the seam between the diaphragm wall connected continuously in foundation ditch, adjacent continuous wall, have induration being positioned at the seam crossing spray outside foundation ditch; Described induration is large cyclotomy shape, and cutting greatly diameter of a circle is 0.6 ~ 1.0m, and the degree of depth is identical with the degree of depth of diaphragm wall, and the transverse lap length of the scant length of large cyclotomy and induration and diaphragm wall is not less than 500mm.
With the construction method of joint seal with the diaphragm wall of structure of filling a vacancy, construction method is as follows:
1. determine to adopt single pipe method or double tube method or tri-tube method churning induration, first determine diameter and the degree of depth of large cyclotomy induration, large cyclotomy diameter range is 0.6 ~ 1.0m and the degree of depth is identical with the degree of depth of diaphragm wall,
2. outside foundation ditch, the cloth hole site of rotary-spraying construction is determined in the place of positive butt joint; The scant length that cloth hole site meets large cyclotomy is not less than 500mm;
3. prepare cement-silicate slurries as injecting paste material, described cement-silicate slurries mix water glass in cement slurry, and the water/binder ratio of cement slurry is 0.75:1 ~ 1:1, and water glass incorporation is 2% ~ 4% of cement slurry weight;
4., after diaphragm wall steady quality, adopt single pipe method or double tube method or the positive butt joint of tri-tube method to carry out jet grouting pile construction in the cloth hole site determined, form the induration of large cyclotomy shape.
Beneficial effect of the present invention is:
(1) high pressure jet grouting method churning induration is adopted at the body of wall seaming position that diaphragm wall is adjacent, injecting paste material fully can fill the hole of seaming position under High Pressure, effectively can solve the uneven and constructional deficiency problem such as to leak of adjacent slot section body of wall seam in construction of diaphragm wall process.
(2) with cement-silicate slurries for injecting paste material, select water glass as injecting paste material fast coagulating early strength agent and injecting paste material impervious agent, the setting time of cement paste can be reduced, prevent cement paste by underground water erosion unsuitable consolidation, and the water blockoff barrier performance of churning induration can be significantly improved.
Accompanying drawing explanation
Fig. 1 is that the present invention adopts the diaphragm wall joint seal of churning induration and structural representation of filling a vacancy;
Fig. 2 is the A-A generalized section of Fig. 1;
Fig. 3 is the B-B generalized section of Fig. 1;
Fig. 4 is churning induration cloth hole of the present invention schematic diagram.
Detailed description of the invention
Below by drawings and Examples, the present invention is described in further detail, but protection scope of the present invention is not limited to described content.
As shown in Figure 1, Figure 2, Figure 3 shows, a kind of diaphragm wall with joint seal and structure of filling a vacancy of the present invention includes the seam 3 between the diaphragm wall 1 connected continuously in foundation ditch, adjacent continuous wall, has induration 2 being positioned at the seam crossing spray outside foundation ditch; Described induration 2 is large cyclotomy shape, and cutting greatly diameter of a circle is 0.6 ~ 1.0m, and the degree of depth is identical with the degree of depth of diaphragm wall 1, and secant 4 length and the induration 2 of large cyclotomy are not less than 500mm with the transverse lap length of diaphragm wall 1.
Of the present invention a kind of as follows with the construction method of the diaphragm wall of structure of filling a vacancy with joint seal:
1. determine to adopt single pipe method or double tube method or tri-tube method churning induration 2, first according to construction place exploration report and diaphragm wall designing requirement, determine diameter and the degree of depth of large cyclotomy induration, large cyclotomy diameter range is 0.6 ~ 1.0m and the degree of depth is identical with the degree of depth of diaphragm wall 1;
2. as shown in Figure 4, outside foundation ditch, the cloth hole site 5 of rotary-spraying construction is determined in the place of positive butt joint 3; Its cloth hole site 5 is adjacent with seam 3, and concrete spacing distance is determined according to the diameter of induration 2, and meets induration 2 and be not less than 500mm with the lap position length of diaphragm wall 1 and secant 4 length of large cyclotomy;
3. prepare cement-silicate slurries as injecting paste material, described cement-silicate slurries mix water glass in cement slurry, and the water/binder ratio of cement slurry is 0.75:1 ~ 1:1, and water glass incorporation is 2% ~ 4% of cement slurry weight;
4., after diaphragm wall 1 steady quality, adopt single pipe method or double tube method or the positive butt joint of tri-tube method to carry out jet grouting pile construction in the cloth hole site determined, form the induration 2 of large cyclotomy shape.
Single pipe method of the present invention or double tube method or tri-tube method are existing construction techniques.
The present invention adopts high pressure jet grouting equipment and technology, with cement-silicate slurries for injecting paste material, carries out high pressure jet grouting, form the churning induration 2 of large cyclotomy shape in the other cloth hole site 4 determined of diaphragm wall 1 seam 3 facing to seam.Injecting paste material fully can fill the hole of seam 3 position under high-pressure injection effect, effectively solves leaking and Construction defect problem of seam 3 position.
Claims (2)
1. one kind with joint seal and the diaphragm wall of structure of filling a vacancy, include the diaphragm wall (1) connected continuously, the seam (3) between adjacent continuous wall that are positioned at foundation ditch, it is characterized in that there is induration (2) being positioned at the seam crossing spray outside foundation ditch; Described induration (2) is large cyclotomy shape, cutting greatly diameter of a circle is 0.6 ~ 1.0m, the degree of depth is identical with the degree of depth of diaphragm wall (1), and secant (4) length of large cyclotomy and induration (2) are not less than 500mm with the transverse lap length of diaphragm wall (1).
2. a kind of with the construction method of joint seal with the diaphragm wall of structure of filling a vacancy as claimed in claim 1, it is characterized in that, construction method is as follows:
1. determine to adopt single pipe method or double tube method or tri-tube method churning induration (2), first determine diameter and the degree of depth of large cyclotomy induration, large cyclotomy diameter range is 0.6 ~ 1.0m and the degree of depth is identical with the degree of depth of diaphragm wall (1);
2. outside foundation ditch, the cloth hole site (5) of rotary-spraying construction is determined in the place of positive butt joint (3); Secant (4) length that cloth hole site meets large cyclotomy is not less than 500mm;
3. prepare cement-silicate slurries as injecting paste material, described cement-silicate slurries mix water glass in cement slurry, and the water/binder ratio of cement slurry is 0.75:1 ~ 1:1, and water glass incorporation is 2% ~ 4% of cement slurry weight;
4., after diaphragm wall (1) steady quality, adopt single pipe method or double tube method or the positive butt joint of tri-tube method to carry out jet grouting pile construction in the cloth hole site determined, form the induration (2) of large cyclotomy shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410634172.4A CN104314106A (en) | 2014-11-12 | 2014-11-12 | Underground diaphragm wall with joint water stop and filling vacancy structure and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410634172.4A CN104314106A (en) | 2014-11-12 | 2014-11-12 | Underground diaphragm wall with joint water stop and filling vacancy structure and construction method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104314106A true CN104314106A (en) | 2015-01-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410634172.4A Pending CN104314106A (en) | 2014-11-12 | 2014-11-12 | Underground diaphragm wall with joint water stop and filling vacancy structure and construction method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN104314106A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105804107A (en) * | 2016-05-10 | 2016-07-27 | 吉林大学 | High-pressure-jetting and anti-seepage treatment method for triple tube of joint of underground diaphragm wall |
| CN105862872A (en) * | 2016-04-05 | 2016-08-17 | 中铁十局集团第四工程有限公司 | Deep foundation pit support structure joint water stop construction method |
| CN106013257A (en) * | 2016-06-28 | 2016-10-12 | 中铁二院重庆勘察设计研究院有限责任公司 | Active and passive integrated water stop outer pasting type water stop strap structure used for construction seam |
| CN107268688A (en) * | 2017-05-19 | 2017-10-20 | 中铁隧道集团有限公司 | I-shaped steel joint of diaphragm wall reinforces the construction method of sealing |
| CN110080309A (en) * | 2019-05-15 | 2019-08-02 | 广州穗岩土木科技股份有限公司 | A kind of processing method of underground continuous wall connector waterproof |
| CN114032966A (en) * | 2021-11-27 | 2022-02-11 | 韶关市第一建筑工程有限公司 | Underground continuous wall joint water seepage treatment method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09177108A (en) * | 1995-12-25 | 1997-07-08 | Bridgestone Corp | Beltlike water stop |
| CN101168963A (en) * | 2007-11-05 | 2008-04-30 | 上海市第二市政工程有限公司 | Large depth underground continuous wall water-stop joint device |
| CN103114609A (en) * | 2013-02-06 | 2013-05-22 | 上海市机械施工有限公司 | Connection device of new and old underground diaphragm walls and construction method |
| CN204174643U (en) * | 2014-11-12 | 2015-02-25 | 云南建工集团有限公司 | A kind of with the diaphragm wall of joint seal with structure of filling a vacancy |
-
2014
- 2014-11-12 CN CN201410634172.4A patent/CN104314106A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09177108A (en) * | 1995-12-25 | 1997-07-08 | Bridgestone Corp | Beltlike water stop |
| CN101168963A (en) * | 2007-11-05 | 2008-04-30 | 上海市第二市政工程有限公司 | Large depth underground continuous wall water-stop joint device |
| CN103114609A (en) * | 2013-02-06 | 2013-05-22 | 上海市机械施工有限公司 | Connection device of new and old underground diaphragm walls and construction method |
| CN204174643U (en) * | 2014-11-12 | 2015-02-25 | 云南建工集团有限公司 | A kind of with the diaphragm wall of joint seal with structure of filling a vacancy |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105862872A (en) * | 2016-04-05 | 2016-08-17 | 中铁十局集团第四工程有限公司 | Deep foundation pit support structure joint water stop construction method |
| CN105804107A (en) * | 2016-05-10 | 2016-07-27 | 吉林大学 | High-pressure-jetting and anti-seepage treatment method for triple tube of joint of underground diaphragm wall |
| CN106013257A (en) * | 2016-06-28 | 2016-10-12 | 中铁二院重庆勘察设计研究院有限责任公司 | Active and passive integrated water stop outer pasting type water stop strap structure used for construction seam |
| CN107268688A (en) * | 2017-05-19 | 2017-10-20 | 中铁隧道集团有限公司 | I-shaped steel joint of diaphragm wall reinforces the construction method of sealing |
| CN107268688B (en) * | 2017-05-19 | 2020-09-01 | 中铁隧道集团有限公司 | Construction method for reinforcing and sealing I-shaped steel joint of underground continuous wall |
| CN110080309A (en) * | 2019-05-15 | 2019-08-02 | 广州穗岩土木科技股份有限公司 | A kind of processing method of underground continuous wall connector waterproof |
| CN114032966A (en) * | 2021-11-27 | 2022-02-11 | 韶关市第一建筑工程有限公司 | Underground continuous wall joint water seepage treatment method |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wang Jianfei Inventor after: Wang Xiaoyan Inventor after: Yin Huafu Inventor after: Yang Shaozhen Inventor after: Li Zhiping Inventor after: Zhou Chengming Inventor after: Wang Xiaoshu Inventor after: Li Chunyan Inventor after: Zheng Yungang Inventor before: Wang Jianfei Inventor before: Zheng Yungang Inventor before: Meng Yinglei Inventor before: Zhou Lin Inventor before: Yang Cheng Inventor before: Su Lanzhong Inventor before: Wang Xiaoyan Inventor before: Yin Huafu Inventor before: Yang Shaozhen Inventor before: Li Zhiping Inventor before: Zhou Chengming Inventor before: Wang Xiaoshu Inventor before: Yang Shixiang Inventor before: Wang Zizhong |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: WANG JIANFEI WANG XIAOYAN YIN HUAFU YANG SHAOZHEN LI ZHIPING ZHOU CHENGMING WANG XIAOSHU YANG SHIXIANG WANG ZIZHONG ZHENG YUNGANG MENG YINGLEI ZHOU LIN YANG CHENG SU LANZHONG TO: WANG JIANFEI WANG XIAOYAN YIN HUAFU YANG SHAOZHEN LI ZHIPING ZHOU CHENGMING WANG XIAOSHU LI CHUNYAN ZHENG YUNGANG |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150128 |