CN101705687B - Deep foundation pit reinforced concrete waist rail detaching device and construction method - Google Patents
Deep foundation pit reinforced concrete waist rail detaching device and construction method Download PDFInfo
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- CN101705687B CN101705687B CN2009101932322A CN200910193232A CN101705687B CN 101705687 B CN101705687 B CN 101705687B CN 2009101932322 A CN2009101932322 A CN 2009101932322A CN 200910193232 A CN200910193232 A CN 200910193232A CN 101705687 B CN101705687 B CN 101705687B
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Abstract
The invention discloses a reinforced concrete waist rail detaching and hoisting device consisting of a certain amount of embedded PVC pipes and transverse H-shaped steels, wherein a horizontal connecting steel bar between a reinforced concrete waist rail and a continuous wall is sleeved by using the half-cut PVC pipe, a certain clearance is reserved on the horizontal connecting steel bar between the reinforced concrete waist rail and the continuous wall by using the half-cut PVC pipe, and the horizontal connecting steel bar between the reinforced concrete waist rail and the continuous wall can be cut off from a semicircular phi160 PVC pipe pore by using oxygen-acetylene cutting so that the leading connection between the reinforced concrete waist rail and the continuous wall is quickly cutoff; phi100 PVC pipes are embedded in the middle of the reinforced concrete waist rail at intervals of 2.4 meters, and a steel cable passes through the embedded phi100 PVC pipes to hoist the reinforced concrete waist rail of 4 meters; and 14 transverse H-shaped steels are embedded in the reinforced concrete waist rail at intervals of 1.6 meters. The reinforced concrete waist rail and the continuous wall can be quickly separated by using the embedded PVC pipes and the 14 transverse H-shaped steels, so the aim of quickly and safely detaching the reinforced concrete waist rail engineering project is achieved.
Description
Technical field
The present invention relates to a kind of deep foundation pit reinforced concrete waist rail detaching device and job practices.
Background technology
In the reinforced concrete waist rail detaching engineering of Metro Deep Excavation support system, often relate to the execution conditions complexity, difficulty is big, the duration is nervous and problem such as quality safety.When constructing, reinforced concrete waist rail considers the device of a kind of pre-buried pvc pipe and i iron, so that remove the reinforced concrete waist rail of support system fast, safely.Yet, dismounting to reinforced concrete waist rail all is a method of utilizing the wind original text to cut and cut at present, and its ubiquity such problem: one, execution conditions complexity, and construction environment is narrow and small, be unfavorable for cutting the reinforced concrete waist rail construction, and have very big potential safety hazard with the wind original text; Two, it is slow to cut progress, big to the programming influence of duration anxiety; Three, the fragment that cuts of reinforced concrete waist rail damages base plate, side wall and side wall reinforcing bar etc.; Four, the fragment that cuts of reinforced concrete waist rail is cleared up difficulty under deep foundation ditch.
The objective of the invention is to solve above-mentioned existing problems, provide a kind of construction and installation to make simple and easy, easy-to-operate, reinforced concrete waist rail to the deep pit support support system can be removed quickly and safely, to the deep foundation pit reinforced concrete waist rail detaching device and the job practices of construction safety and the effective control of duration progress.
The objective of the invention is to be achieved through the following technical solutions: a kind of deep foundation pit reinforced concrete waist rail detaching device, its characteristics are to comprise reinforced concrete waist rail detaching, the hanging apparatus of being made up of the pvc pipe and the i iron of pre-buried some.Wherein the horizontal connecting reinforcement of reinforced concrete waist rail and diaphragm wall is inserted in the pvc pipe that half-and-half cuts, and by the pvc pipe of 2.4 meters pre-buried Φ 100 of spacing, reinforced concrete waist rail is by 1.6 meters pre-buried 14 i iron of spacing in the middle of the reinforced concrete waist rail.Utilize pre-buried pvc pipe and 14 i iron that reinforced concrete waist rail and diaphragm wall are broken away from, reach make the reinforced concrete waist rail engineering fast, the safety purpose of removing.
The job practices of reinforced concrete waist rail detaching device of the present invention comprises the steps:
(1) earlier the pvc pipe of Φ 160 is cut into a section by the height of reinforced concrete waist rail, and Φ 160PVC pipe is half-and-half cut, hole according to the size and the spacing of reinforced concrete waist rail and the horizontal connecting reinforcement of diaphragm wall;
(2) pvc pipe that will half-and-half cut before the reinforced concrete waist rail reinforcement installation is inserted on reinforced concrete waist rail and the horizontal connecting reinforcement of diaphragm wall, and is close to diaphragm wall;
(3) when reinforced concrete waist rail reinforcing bar system peace finish the back in the reinforced concrete waist rail centre pvc pipe by 2 meters pre-buried Φ 100 of spacing, as the reinforced concrete waist rail detaching hole for hoist, press 2 meters pre-buried 14 i iron of spacing in 1/3rd positions, the outer limit of reinforced concrete waist rail, 14 i iron length 60cm, imbed 40cm in the reinforced concrete waist rail concrete, 20cm stretches out outside the reinforced concrete waist rail;
(4) before the reinforced concrete waist rail concreting, fill up the pvc pipe hole closely knit with fine sand;
(5) when will removing, reinforced concrete waist rail below reinforced concrete waist rail, uses Φ 48 steel pipe proping bearing bar concrete breast beams, and water flushing pvc pipe hole;
(6) the Φ 100PVC pore of reserving with steel wire penetrating hangs tight reinforced concrete waist rail, reinforced concrete waist rail is cut off by 4 meters one section with cutting machine;
(7) cut the horizontal connecting reinforcement that cuts off reinforced concrete waist rail and diaphragm wall from semicircle Φ 160PVC pore with oxygen-acetylene, withstand on pre-buried 14 i iron with two jack, two jack slowly eject reinforced concrete waist rail simultaneously;
(8) hang outside the foundation ditch with crane or straddle truck after reinforced concrete waist rail and diaphragm wall break away from fully.
The present invention adopts the pvc pipe of pre-buried some and reinforced concrete waist rail detaching, the hanging apparatus that i iron is formed.Wherein the horizontal connecting reinforcement of reinforced concrete waist rail and diaphragm wall is inserted in the pvc pipe that half-and-half cuts, utilize the pvc pipe that half-and-half cuts to make the level binding reinforcing bar between reinforced concrete waist rail and diaphragm wall that certain space be arranged, can cut the horizontal connecting reinforcement that cuts off reinforced concrete waist rail and diaphragm wall from semicircle Φ 160PVC pore with oxygen-acetylene, make the topmost binding of reinforced concrete waist rail and diaphragm wall cut off fast; By the pvc pipe of 2.4 meters pre-buried Φ 100 of spacing, utilize 4 meters reinforced concrete waist rails of pvc pipe lifting of the pre-buried Φ 100 of steel wire penetrating in the middle of the reinforced concrete waist rail; Reinforced concrete waist rail is by 1.6 meters pre-buried 14 i iron of spacing.Utilize pre-buried pvc pipe and 14 i iron that reinforced concrete waist rail and diaphragm wall are broken away from, reach make the reinforced concrete waist rail engineering fast, the safety purpose of removing.
The present invention is further illustrated below in conjunction with accompanying drawing.
Description of drawings
Fig. 1 is that structure of the present invention is formed floor map;
Fig. 2 is that structure of the present invention is formed the full-page proof schematic diagram.
The specific embodiment
As Fig. 1, Fig. 2 and shown in Figure 3, deep foundation pit reinforced concrete waist rail detaching device of the present invention is included in pvc pipe pre-buried between reinforced concrete waist rail and the diaphragm wall and reaches pvc pipe, 14 i iron pre-buried on reinforced concrete waist rail; Pre-buried pvc pipe adopts the pvc pipe of Φ 160 and half-and-half cuts use between described reinforced concrete waist rail and the diaphragm wall, and pvc pipe, 14 i iron pre-buried on the described reinforced concrete waist rail adopt the pvc pipe of Φ 100 and 14 i iron of 60cm degree.Wherein the horizontal connecting reinforcement of reinforced concrete waist rail and diaphragm wall is inserted in the pvc pipe that half-and-half cuts, and by the pvc pipe of 2.4 meters pre-buried Φ 100 of spacing, reinforced concrete waist rail is by 1.6 meters pre-buried 14 i iron of spacing in the middle of the reinforced concrete waist rail.Utilize pre-buried pvc pipe and 14 i iron that reinforced concrete waist rail and diaphragm wall are broken away from, reach make the reinforced concrete waist rail engineering fast, the safety purpose of removing.Wherein, described jack is general jack, and described crane gear is for satisfying equipment such as the overweight machine hang reinforced concrete waist rail or straddle truck.
The job practices of reinforced concrete waist rail detaching device of the present invention comprises the steps:
(1) earlier the pvc pipe of Φ 160 is cut into a section by the height of reinforced concrete waist rail, and Φ 160PVC pipe is half-and-half cut, hole according to the size and the spacing of reinforced concrete waist rail and the horizontal connecting reinforcement of diaphragm wall;
(2) pvc pipe that will half-and-half cut before the reinforced concrete waist rail reinforcement installation is inserted on reinforced concrete waist rail and the horizontal connecting reinforcement of diaphragm wall, and is close to diaphragm wall;
(3) when reinforced concrete waist rail reinforcing bar system peace finish the back in the reinforced concrete waist rail centre pvc pipe by 2 meters pre-buried Φ 100 of spacing, as the reinforced concrete waist rail detaching hole for hoist, press 2 meters pre-buried 14 i iron of spacing in 1/3rd positions, the outer limit of reinforced concrete waist rail, 14 i iron length 60cm, imbed 40cm in the reinforced concrete waist rail concrete, 20cm stretches out outside the reinforced concrete waist rail;
(4) before the reinforced concrete waist rail concreting, fill up the pvc pipe hole closely knit with fine sand;
(5) when will removing, reinforced concrete waist rail below reinforced concrete waist rail, uses Φ 48 steel pipe proping bearing bar concrete breast beams, and water flushing pvc pipe hole;
(6) the Φ 100PVC pore of reserving with steel wire penetrating hangs tight reinforced concrete waist rail, reinforced concrete waist rail is cut off by 4 meters one section with cutting machine;
(7) cut the horizontal connecting reinforcement that cuts off reinforced concrete waist rail and diaphragm wall from semicircle Φ 160PVC pore with oxygen-acetylene, withstand on pre-buried 14 i iron with two jack, two jack slowly eject reinforced concrete waist rail simultaneously;
(8) hang outside the foundation ditch with crane or straddle truck after reinforced concrete waist rail and diaphragm wall break away from fully.
Claims (3)
1. deep foundation pit reinforced concrete waist rail detaching device, it is characterized in that comprising the reinforced concrete waist rail detaching of forming by the pvc pipe and the i iron of pre-buried some, hanging apparatus, wherein the horizontal connecting reinforcement of reinforced concrete waist rail and diaphragm wall is used in that the pre-buried pvc pipe that half-and-half cuts is inserted between reinforced concrete waist rail and the diaphragm wall, press the pvc pipe of 2.4 meters pre-buried Φ 100 of spacing in the middle of the reinforced concrete waist rail, reinforced concrete waist rail utilizes pre-buried pvc pipe and 14 i iron that reinforced concrete waist rail and diaphragm wall are broken away from by 1.6 meters pre-buried 14 i iron of spacing.
2. according to the described a kind of deep foundation pit reinforced concrete waist rail detaching device of claim 1, its feature is provided with the wire rope that passes in the pvc pipe of pre-buried Φ 100, reinforced concrete waist rail can be transported out of foundation ditch by this wire rope and connected crane gear.
3. the job practices of a deep foundation pit reinforced concrete waist rail detaching device is characterized in that including following steps:
(1) earlier the pvc pipe of Φ 160 is cut into a section by the height of reinforced concrete waist rail, and Φ 160PVC pipe is half-and-half cut, hole according to the size and the spacing of reinforced concrete waist rail and the horizontal connecting reinforcement of diaphragm wall;
(2) pvc pipe that will half-and-half cut before the reinforced concrete waist rail reinforcement installation is inserted on reinforced concrete waist rail and the horizontal connecting reinforcement of diaphragm wall, and is close to diaphragm wall;
(3) when reinforced concrete waist rail reinforcing bar system peace finish the back in the reinforced concrete waist rail centre pvc pipe by 2 meters pre-buried Φ 100 of spacing, as the reinforced concrete waist rail detaching hole for hoist, press 2 meters pre-buried 14 i iron of spacing in 1/3rd positions, the outer limit of reinforced concrete waist rail, 14 i iron length 60cm, imbed 40cm in the reinforced concrete waist rail concrete, 20cm stretches out outside the reinforced concrete waist rail;
(4) before the reinforced concrete waist rail concreting, fill up the pvc pipe hole closely knit with fine sand;
(5) when will removing, reinforced concrete waist rail below reinforced concrete waist rail, uses Φ 48 steel pipe proping bearing bar concrete breast beams, and water flushing pvc pipe hole;
(6) the Φ 100PVC pore of reserving with steel wire penetrating hangs tight reinforced concrete waist rail, reinforced concrete waist rail is cut off by 4 meters one section with cutting machine;
(7) cut the horizontal connecting reinforcement that cuts off reinforced concrete waist rail and diaphragm wall from semicircle Φ 160PVC pore with oxygen-acetylene, withstand on pre-buried 14 i iron with two jack, two jack slowly eject reinforced concrete waist rail simultaneously;
(8) hang outside the foundation ditch with crane or straddle truck after reinforced concrete waist rail and diaphragm wall break away from fully.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101932322A CN101705687B (en) | 2009-10-23 | 2009-10-23 | Deep foundation pit reinforced concrete waist rail detaching device and construction method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101932322A CN101705687B (en) | 2009-10-23 | 2009-10-23 | Deep foundation pit reinforced concrete waist rail detaching device and construction method |
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| Publication Number | Publication Date |
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| CN101705687A CN101705687A (en) | 2010-05-12 |
| CN101705687B true CN101705687B (en) | 2011-07-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009101932322A Expired - Fee Related CN101705687B (en) | 2009-10-23 | 2009-10-23 | Deep foundation pit reinforced concrete waist rail detaching device and construction method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102677680A (en) * | 2012-05-08 | 2012-09-19 | 广东省基础工程公司 | Dismantling method for concrete waist beam |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102776888A (en) * | 2012-08-16 | 2012-11-14 | 上海建工四建集团有限公司 | Adjustable fixed support device for dismantling concrete member |
| CN103171052B (en) * | 2013-04-09 | 2015-09-30 | 中交一航局第二工程有限公司 | The disposable prefabricated construction engineering method of twin columns wave-breaking body |
| CN103774676A (en) * | 2014-02-18 | 2014-05-07 | 中建三局第二建设工程有限责任公司 | Construction method for dismounting foundation pit waist beam |
| CN107119696A (en) * | 2017-06-27 | 2017-09-01 | 中国水利水电第八工程局有限公司 | The deep foundation ditch concrete supporting construction and its construction method of a kind of default hole for hoist |
| CN108612109B (en) * | 2018-04-27 | 2020-12-01 | 中国二十冶集团有限公司 | Bracket-free dismantling method for concrete support beam |
| CN108560560A (en) * | 2018-05-02 | 2018-09-21 | 中铁北京工程局集团城市轨道交通工程有限公司 | A kind of method for dismounting of foundation pit enclosure structure |
| CN109610475A (en) * | 2019-01-02 | 2019-04-12 | 中国建筑第八工程局有限公司 | The construction method of existing ground-connecting-wall is removed in deep basal pit |
| CN112024020B (en) * | 2020-09-04 | 2021-07-06 | 枫林环保科技股份有限公司 | Construction waste treatment method |
-
2009
- 2009-10-23 CN CN2009101932322A patent/CN101705687B/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102677680A (en) * | 2012-05-08 | 2012-09-19 | 广东省基础工程公司 | Dismantling method for concrete waist beam |
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Owner name: GUANGDONG FOUNDATION ENGINEERING GROUP CO., LTD. Free format text: FORMER NAME: GUANGDONG PROV. FOUNDATION ENGINEERING CO. |
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Address after: 19-20, No. 510620, Tianhe Road, 99 Tianhe Road, Guangdong, Guangzhou Patentee after: Foundation Design Group Co., Ltd of Guangdong Province Address before: 19-20, No. 510620, Tianhe Road, 99 Tianhe Road, Guangdong, Guangzhou Patentee before: Guangdong Prov. Foundation Engineering Co. |
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Granted publication date: 20110713 Termination date: 20181023 |
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