CN113136858A - Construction method of prefabricated assembled underground continuous wall - Google Patents
Construction method of prefabricated assembled underground continuous wall Download PDFInfo
- Publication number
- CN113136858A CN113136858A CN202110292035.7A CN202110292035A CN113136858A CN 113136858 A CN113136858 A CN 113136858A CN 202110292035 A CN202110292035 A CN 202110292035A CN 113136858 A CN113136858 A CN 113136858A
- Authority
- CN
- China
- Prior art keywords
- wall
- groove
- unit
- steel piece
- steel
- 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
- 238000010276 construction Methods 0.000 title claims abstract description 38
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 76
- 239000010959 steel Substances 0.000 claims abstract description 76
- 239000002002 slurry Substances 0.000 claims abstract description 17
- 239000002775 capsule Substances 0.000 claims abstract description 10
- 239000004568 cement Substances 0.000 claims abstract description 9
- 239000007788 liquid Substances 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 6
- 239000011150 reinforced concrete Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 5
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 210000003934 vacuole Anatomy 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/02—Sheet piles or sheet pile bulkheads
- E02D5/03—Prefabricated parts, e.g. composite sheet piles
- E02D5/10—Prefabricated parts, e.g. composite sheet piles made of concrete or reinforced concrete
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/02—Sheet piles or sheet pile bulkheads
- E02D5/03—Prefabricated parts, e.g. composite sheet piles
- E02D5/10—Prefabricated parts, e.g. composite sheet piles made of concrete or reinforced concrete
- E02D5/12—Locking forms; Edge joints; Pile crossings; Branch pieces
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Bulkheads Adapted To Foundation Construction (AREA)
Abstract
The invention discloses a construction method of a prefabricated underground diaphragm wall, which comprises the following steps: prefabricating an underground continuous wall body unit; excavating a trench of the underground diaphragm wall; rubber capsule bodies are stuck in the second and third grooves of each wall body unit; installing a second steel piece and a first steel piece in the gap and the fourth groove on the wall unit; placing a first wall unit into the groove; inserting a second wall body unit along the first groove of the wall body unit, embedding the tenon of the second wall body unit into the first groove of the first wall body unit, and mutually drawing and combining the second steel piece and the 1 st steel piece; continuously inserting subsequent wall units along the direction of the groove of the underground diaphragm wall, and injecting liquid grouting body into the bag body at the joint of the first wall unit and the second wall unit; injecting cement-based slurry into the steel flower tube of the second steel piece; after a plurality of wall units are constructed, grouting cement slurry in gaps between the wall units and the grooves, and replacing the slurry in the gaps; and (5) completing the construction of the underground continuous wall according to the steps. The construction speed is fast, and the waterproof effect is good.
Description
Technical Field
The invention belongs to the field of underground structural engineering, and particularly relates to a construction method of a prefabricated assembled underground continuous wall.
Background
At present, when foundation pit engineering is excavated in a busy city section, the traditional cast-in-place underground continuous wall often occupies roads for a long time and influences traffic, and has the disadvantages of low construction efficiency, difficulty in ensuring construction quality and easiness in causing adverse effects on the surrounding environment. The prefabricated underground continuous wall has the advantages of prefabricated mass standardized production, controllable quality, quick construction progress and the like, and meets the requirements of energy conservation and environmental protection.
The prefabricated underground continuous wall section has excellent waterproof performance, and the waterproof effect of the seam between the panels determines the waterproof success or failure of the whole project. In the current stage, water stopping is mainly carried out by measures such as concrete pouring and grouting at the joints in engineering, construction is time-consuming and labor-consuming, construction effects are not easy to control, and water leakage at the joints is easily caused.
Disclosure of Invention
In order to solve the problems of the prior art, an object of the present invention is to provide a construction method of a prefabricated underground diaphragm wall which is easy to construct and has good waterproof performance.
Therefore, the technical scheme of the invention is as follows:
a construction method of a prefabricated underground diaphragm wall comprises the following steps:
1) the wall body unit of the underground continuous wall of prefabricated reinforced concrete structure, wherein:
a first groove and a second groove are formed on the connecting surface at one side of each wall body unit, and a tenon and a third groove are formed on the connecting surface at the other side of each wall body unit; the shape of the tenon is matched with that of the first groove; the second groove and the third groove are the same in shape and correspond in position;
a first steel piece is pre-buried and fixed at a position, close to the first groove, of the wall unit, a cavity is formed inside the first steel piece, an opening is formed in the outer side of the first steel piece, a second steel piece is embedded and installed on the tenon, the second steel piece is composed of a pulling part and a connecting part, one end of the connecting part is embedded and installed in the tenon, and the other end of the connecting part extends out of the tenon to be fixedly connected with the pulling part;
a plurality of weight-reducing cavities extending downwards from the top surface are formed on the wall body unit;
2) constructing a fence, leveling the field, and performing traffic fluffing; adopting a slurry retaining wall to carry out grooving construction on the underground continuous wall;
3) adhering a bag body in the second groove and the third groove of each wall unit transported to a construction site, wherein the bag body is made of rubber, and the top of the bag body is provided with a grouting nozzle;
4) placing a wall unit into the groove of the underground continuous wall and temporarily fixing the wall unit; inserting a second wall body unit along the first groove of the first wall body unit, and embedding the tenon of the second wall body unit into the first groove of the first wall body unit, wherein in the process, the pulling part of the second steel piece is ensured to be inserted into the 1 st steel piece, so that the second steel piece and the first wall body unit are mutually pulled and connected to play roles in positioning and guiding;
5) continuously inserting subsequent wall units along the direction of the groove of the underground continuous wall, injecting liquid grouting body into the bag bodies at the joint of the first wall unit and the second wall unit in the process of inserting the subsequent wall units, reaching the preset pressure, and sealing the grouting nozzles at the tops of the strip bags after grouting;
6) injecting cement-based slurry into the steel flower tubes at the joints of the first wall body unit and the second wall body unit, and sealing the joints between the wall panel units;
7) after a plurality of wall units are constructed according to the method, cement slurry is poured into gaps between the prefabricated wall units and the grooves, and slurry at the gaps is replaced to form an outer waterproof layer of the integral structure;
8) and (5) completing the construction of the whole underground continuous wall according to the steps.
Preferably, the tenon and the first groove are located in the middle of the wall unit connecting surface, and the second groove and the third groove are formed in the connecting surface of the wall body and are symmetrically arranged in the width direction of the wall unit.
In one embodiment of the invention, the connecting portion of the second steel member is a steel plate, one side of which is inserted into the slit; the drawknot part is a steel floral tube; the first steel piece is formed by fixedly connecting a steel pipe with an opening on one side and two parallel steel plates connected with two sides of the opening of the steel pipe.
Preferably, the first groove, the second groove, the third groove and the tenon extend over the entire height of the wall body, and correspondingly, the first steel member, the capsule and the second steel member also extend over the entire height of the wall body.
The first groove, the second groove, the third groove and the tenon can also extend on the local height of the wall body, and correspondingly, the first steel piece, the capsule body and the second steel piece also extend on the local height of the wall body.
The invention has the following advantages and positive effects:
1. when the prefabricated underground continuous wall is inserted into the construction, the tenon and the steel member rib at the first groove are mutually tied and guided, so that the construction accuracy is improved, and the shearing strength at the joint is ensured;
2. after the insertion construction of the adjacent wall units is finished, bag body liquid filling and steel perforated pipe grouting construction at the inter-wall joint is carried out, the insertion construction of the subsequent underground continuous wall is not influenced, the construction efficiency is improved, the waterproof effect is enhanced, and the application of the assembled underground continuous wall in underground engineering can be effectively promoted;
3. the prefabricated assembled underground continuous wall wallboard adopts a hollow structure, and is convenient for transportation and hoisting on a construction site.
Drawings
FIG. 1 is a schematic top view of a fabricated underground diaphragm wall according to the present invention;
FIG. 2 is an enlarged schematic view of the joint between two wall units in the fabricated underground diaphragm wall according to the present invention;
FIG. 3 is a cross-sectional view of a first connecting steel member between panels in the present invention;
FIG. 4 is a schematic cross-sectional structure of the second connecting steel member 2 between the panels of the invention after being combined with a groutable steel perforated pipe;
FIG. 5 is a schematic sectional view of the composite structure of the connecting steel member between panels according to the present invention;
FIG. 6 is a schematic cross-sectional view of a weatherstrip bladder between webs in accordance with the present invention;
FIG. 7 is a schematic cross-sectional view of the web-to-web weatherstrip of the present invention after grouting;
FIG. 8 is a schematic cross-sectional view of the assembled structure of the weather strip pocket between panels of the present invention after being placed in the pre-groove;
FIG. 9 is a schematic view of a vertical cross-section of the weatherstrip bladder of the present invention.
In the figure:
1: first wall element 2: second wall element 3: the tenon 4: the first groove
5: first steel member 6: second steel member 7: steel flower tube 8 a: second groove
8 b: third groove 9: the capsule body 10: cement-based slurry 11: weight-reducing cavity
12: trench sidewall 13: gap 14: the capsule cavity 15: slurry 16: and (4) grouting holes.
Detailed Description
The construction method of the prefabricated underground diaphragm wall according to the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
First, the structure of the prefabricated underground diaphragm wall of the present invention will be explained.
As shown in fig. 1 to 9, the prefabricated underground diaphragm wall includes a plurality of prefabricated wall units which are sequentially connected end to end and have the same structure, a first groove 4 and a second groove 8a are formed on a connecting surface on one side of each wall unit, a tenon 3 and a third groove 8b are formed on a connecting surface on the other side of each wall unit, and the shape of the tenon 3 is adapted to that of the first groove 4. As shown, for two adjacent wall units 1, 2, the tenon 3 of the unit 2 is embedded into the first groove 4 of the unit 1, and the second groove 8a of the unit 1 and the third groove 8b of the unit 2 are oppositely arranged; a bladder 9 is mounted in each of the second and third recesses 8a, 8 b.
As shown in fig. 1 and 2, the tenon 3 and the first groove 4 are respectively located in the middle of the connecting surface of the two wall units, and the second groove and the third groove are respectively formed with two on the connecting surface of the wall and symmetrically arranged in the width direction of the wall units.
The wall body unit is close to pre-buried being fixed with first steel 5 in 4 departments of first recess, the inside vacuole formation of first steel 5 and the outside are formed with the opening the embedding is installed second steel 6 on the tenon 3, the second steel comprises drawknot part and coupling part, the one end embedding of coupling part is installed in tenon 3, and the other end stretches out tenon 3 with drawknot part fixed connection.
A plurality of weight-reducing cavities 11 are also formed in the wall unit. The cavity extends downwardly from the top surface of the wall element and may be level with the wall element. The arrangement of the cavity can reduce the performance requirements on hoisting and inserting construction equipment.
Referring to fig. 2 to 5, the second steel member 6 is formed by fixedly connecting a tie part and a connecting part, one end of the connecting part is embedded in the tenon 3, the other end of the connecting part extends outwards and is fixedly connected with the tie part, and the tie part is sleeved in the first steel member 5 and forms a tying relation with the first steel member 5. In the invention, the drawknot part adopts a steel floral tube 7.
Referring to fig. 7-9, the bladder 9, which is made of rubber and provided with a grouting nozzle 16 at the top thereof, is stuck in the second groove 8a and the third groove 8 b.
The first groove, the second groove, the third groove and the tenon may extend over the entire height of the wall body, and correspondingly, the first steel member 5, the capsule, and the second steel member 6 also extend over the entire height of the wall body.
The first groove, the second groove, the third groove and the tenon can also extend on the local height of the wall body, and correspondingly, the first steel part 5, the capsule body and the second steel part 6 also extend on the local height of the wall body.
The construction method of the underground continuous wall comprises the following steps:
the first step is as follows: the wall body unit of the underground continuous wall of prefabricated reinforced concrete structure, wherein:
a first groove and a second groove are formed on the connecting surface at one side of each wall body unit, and a tenon and a third groove are formed on the connecting surface at the other side of each wall body unit; the shape of the tenon is matched with that of the first groove; the second groove and the third groove are the same in shape and correspond in position;
a first steel piece is pre-buried and fixed at a position, close to the first groove, of the wall unit, a cavity is formed inside the first steel piece, an opening is formed in the outer side of the first steel piece, a second steel piece is embedded and installed on the tenon, the second steel piece is composed of a pulling part and a connecting part, one end of the connecting part is embedded and installed in the tenon, and the other end of the connecting part extends out of the tenon to be fixedly connected with the pulling part;
a plurality of weight-reducing cavities extending downward from the top surface are formed in the wall unit.
The second step is that: constructing a fence, leveling the field, and performing traffic fluffing; and adopting the slurry retaining wall to carry out grooving construction on the underground continuous wall.
The third step: and adhering the capsule bodies 9 in the second groove and the third groove of the wall unit transported to the site, and protecting the wall unit.
The fourth step: placing a wall unit into the groove of the underground continuous wall and temporarily fixing the wall unit; and inserting the second wall body unit along the first groove of the first wall body unit, and embedding the tenon of the second wall body unit into the first groove of the first wall body unit, wherein the pulling part of the second steel piece is ensured to be inserted into the 1 st steel piece in the process, so that the second steel piece and the first wall body unit are mutually pulled and connected to play roles in positioning and guiding.
The fifth step: and continuously inserting subsequent wall units along the direction of the groove of the underground diaphragm wall, injecting liquid grouting body into the bag bodies at the joint of the first wall unit and the second wall unit in the process of inserting the subsequent wall units, reaching the preset pressure, and sealing the grouting nozzle at the top of the strip bag after grouting.
And a sixth step: injecting cement-based slurry into the steel flower tubes at the joints of the first wall body unit and the second wall body unit, and sealing the joints between the wall panel units;
the seventh step: after a plurality of wall units are constructed according to the method, cement slurry is poured into gaps between the prefabricated wall units and the grooves, and slurry at the gaps is replaced to form an outer waterproof layer of the integral structure;
eighth step: and continuing construction according to the steps until the construction of the whole underground continuous wall is finished.
Claims (5)
1. A construction method of a prefabricated underground diaphragm wall comprises the following steps:
1) the wall body unit of the underground continuous wall of prefabricated reinforced concrete structure, wherein:
a first groove and a second groove are formed on the connecting surface at one side of each wall body unit, and a tenon and a third groove are formed on the connecting surface at the other side of each wall body unit; the shape of the tenon is matched with that of the first groove; the second groove and the third groove are the same in shape and correspond in position;
a first steel piece is pre-buried and fixed at a position, close to the first groove, of the wall unit, a cavity is formed inside the first steel piece, an opening is formed in the outer side of the first steel piece, a second steel piece is embedded and installed on the tenon, the second steel piece is composed of a pulling part and a connecting part, one end of the connecting part is embedded and installed in the tenon, and the other end of the connecting part extends out of the tenon to be fixedly connected with the pulling part;
a plurality of weight-reducing cavities extending downwards from the top surface are formed on the wall body unit;
2) constructing a fence, leveling the field, and performing traffic fluffing; adopting a slurry retaining wall to carry out underground continuous wall groove construction;
3) adhering a bag body in the second groove and the third groove of each wall unit transported to a construction site, wherein the bag body is made of rubber, and the top of the bag body is provided with a grouting nozzle;
4) placing a wall unit into the groove of the underground continuous wall and temporarily fixing the wall unit; inserting a second wall body unit along the first groove of the first wall body unit, and embedding the tenon of the second wall body unit into the first groove of the first wall body unit, wherein in the process, the pulling part of the second steel piece is ensured to be inserted into the 1 st steel piece, so that the second steel piece and the first wall body unit are mutually pulled and connected to play roles in positioning and guiding;
5) continuously inserting subsequent wall units along the direction of the groove of the underground continuous wall, injecting liquid grouting body into the bag bodies at the joint of the first wall unit and the second wall unit in the process of inserting the subsequent wall units, reaching the preset pressure, and sealing the grouting nozzles at the tops of the strip bags after grouting;
6) injecting cement-based slurry into the steel flower tubes at the joints of the first wall body unit and the second wall body unit, and sealing the joints between the wall panel units;
7) after a plurality of wall units are constructed according to the method, cement slurry is poured into gaps between the prefabricated wall units and the grooves, and slurry at the gaps is replaced to form an outer waterproof layer of the integral structure;
8) and continuing construction according to the steps until the construction of the whole underground continuous wall is finished.
2. The construction method according to claim 1, characterized in that: the tenon and the first groove are located in the middle of the wall unit connecting surface, and the second groove and the third groove are formed in the wall unit connecting surface in a symmetrical mode in the width direction.
3. The construction method according to claim 1, characterized in that: the connecting part of the second steel piece is a steel plate, and one side of the connecting part is inserted into the gap; the drawknot part is a steel floral tube; the first steel piece is formed by fixedly connecting a steel pipe with an opening on one side and two parallel steel plates connected with two sides of the opening of the steel pipe.
4. The construction method according to claim 1, characterized in that: the first groove, the second groove, the third groove and the tenon extend over the whole height of the wall body, and correspondingly, the first steel piece, the capsule body and the second steel piece also extend over the whole height of the wall body.
5. The construction method according to claim 1, characterized in that: the first groove, the second groove, the third groove and the tenon can also extend on the local height of the wall body, and correspondingly, the first steel piece, the capsule body and the second steel piece also extend on the local height of the wall body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110292035.7A CN113136858A (en) | 2021-03-18 | 2021-03-18 | Construction method of prefabricated assembled underground continuous wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110292035.7A CN113136858A (en) | 2021-03-18 | 2021-03-18 | Construction method of prefabricated assembled underground continuous wall |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113136858A true CN113136858A (en) | 2021-07-20 |
Family
ID=76811513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110292035.7A Pending CN113136858A (en) | 2021-03-18 | 2021-03-18 | Construction method of prefabricated assembled underground continuous wall |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113136858A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114032882A (en) * | 2021-11-23 | 2022-02-11 | 广东省源天工程有限公司 | Prefabricated underground continuous wall and sectional joint structure |
| CN115162357A (en) * | 2022-07-28 | 2022-10-11 | 蒲亚威 | Continuous wall system for cover-excavation top-down construction and construction method |
| CN115506333A (en) * | 2022-10-31 | 2022-12-23 | 中铁四院集团西南勘察设计有限公司 | Underground continuous wall with joint |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001254352A (en) * | 2000-03-09 | 2001-09-21 | Tokyu Constr Co Ltd | Construction for diaphragm wall and joint protection material |
| CN103334422A (en) * | 2013-06-26 | 2013-10-02 | 中国建筑股份有限公司 | Assembled embedded type prefabricated hollow underground continuous wall and construction method thereof |
| CN105350521A (en) * | 2015-11-16 | 2016-02-24 | 上海市政工程设计研究总院（集团）有限公司 | Vertical splicing structure and method of prefabricated underground diaphragm walls |
| CN207597394U (en) * | 2017-09-10 | 2018-07-10 | 沈阳建筑大学 | The horizontally-spliced structure of coercion underground continuous wall |
| CN208748644U (en) * | 2018-07-20 | 2019-04-16 | 浙江吉通地空建筑科技有限公司 | A kind of canal formula cutting assembled underground continuous wall |
| CN111719593A (en) * | 2020-06-03 | 2020-09-29 | 浙江大学 | Prefabricated assembly type bentonite vertical barrier structure and method for underground pollution control |
| CN112299796A (en) * | 2020-12-01 | 2021-02-02 | 宁波中淳高科股份有限公司 | Wall pile inter-pile grouting material for building envelope and construction method thereof |
-
2021
- 2021-03-18 CN CN202110292035.7A patent/CN113136858A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001254352A (en) * | 2000-03-09 | 2001-09-21 | Tokyu Constr Co Ltd | Construction for diaphragm wall and joint protection material |
| CN103334422A (en) * | 2013-06-26 | 2013-10-02 | 中国建筑股份有限公司 | Assembled embedded type prefabricated hollow underground continuous wall and construction method thereof |
| CN105350521A (en) * | 2015-11-16 | 2016-02-24 | 上海市政工程设计研究总院（集团）有限公司 | Vertical splicing structure and method of prefabricated underground diaphragm walls |
| CN207597394U (en) * | 2017-09-10 | 2018-07-10 | 沈阳建筑大学 | The horizontally-spliced structure of coercion underground continuous wall |
| CN208748644U (en) * | 2018-07-20 | 2019-04-16 | 浙江吉通地空建筑科技有限公司 | A kind of canal formula cutting assembled underground continuous wall |
| CN111719593A (en) * | 2020-06-03 | 2020-09-29 | 浙江大学 | Prefabricated assembly type bentonite vertical barrier structure and method for underground pollution control |
| CN112299796A (en) * | 2020-12-01 | 2021-02-02 | 宁波中淳高科股份有限公司 | Wall pile inter-pile grouting material for building envelope and construction method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 黄小广等: "《现代地下工程》", 30 September 2003, 中国矿业大学出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114032882A (en) * | 2021-11-23 | 2022-02-11 | 广东省源天工程有限公司 | Prefabricated underground continuous wall and sectional joint structure |
| CN115162357A (en) * | 2022-07-28 | 2022-10-11 | 蒲亚威 | Continuous wall system for cover-excavation top-down construction and construction method |
| CN115506333A (en) * | 2022-10-31 | 2022-12-23 | 中铁四院集团西南勘察设计有限公司 | Underground continuous wall with joint |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113136858A (en) | Construction method of prefabricated assembled underground continuous wall | |
| CN105464686B (en) | Multi-layer underground space curtain posture excavating construction method and supporting construction under existing facility | |
| CN105839667B (en) | The construction manufacture craft of complete prefabricated overlapping assembled underground pipe gallery | |
| CN107119711B (en) | Connecting structure for large-range adjacent existing transfer station and construction method | |
| WO2016058275A1 (en) | Underground steel-concrete structure pipeline with spiral composite reinforcement ring on inner wall thereof and manufacturing method thereof | |
| CN105464134B (en) | Multi-layer underground space is along inverse combining construction method and supporting construction under existing facility | |
| CN106120801B (en) | Pipeline crosses the construction method at foundation ditch in water-rich sand layer | |
| CN105909268B (en) | Prestressing combination formula well tunnel modular structure construction method and modular structure | |
| CN103015456B (en) | Rapid pit-in-pit form erecting method in foundation slab of buried concrete structure | |
| CN111719565A (en) | Deep foundation pit support structure and construction method thereof | |
| CN106400811B (en) | Frame is inverse to make foldable assembled foundation pit structure construction method | |
| CN111395391B (en) | Construction method for multi-hole rectangular jacking pipe and light and dark excavation joint pipe gallery joint | |
| CN109356183B (en) | Open caisson reserved hole plugging structure and construction method thereof | |
| CN111236258A (en) | Prefabricated pile wall supporting structure with stiffening rib wall and unloading platform and construction method thereof | |
| CN105220714A (en) | Core compound prestress pile tube float Structure construction method filled with by built-in anchor cable | |
| CN110700280A (en) | Narrow zone foundation pit supporting construction flow guide device and construction method | |
| CN206752667U (en) | A kind of basement barrier wall structure | |
| CN105369799A (en) | Concrete precast pile of precast pile underground diaphragm wall and construction method of precast pile underground diaphragm wall | |
| CN112412472B (en) | Pipe-jacking working well wall reverse-acting system in soft soil area and construction method and application thereof | |
| CN111911161B (en) | Shaft construction method of underground excavation channel | |
| CN109881661A (en) | Assembled underground continuous wall transverse connection structure | |
| CN112982481A (en) | Structure construction method for crossing subway intersection node on pipe gallery | |
| CN107326932A (en) | A kind of accurate half reversed construction method of underground garage | |
| CN215406009U (en) | Prefabricated assembled underground continuous wall | |
| CN112012762A (en) | Construction method of double-layer secondary lining multi-arch tunnel structure |
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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210720 |