CN202323955U - High-pressure water jet system for assisting in inserting and driving steel sheet pile cofferdam - Google Patents
High-pressure water jet system for assisting in inserting and driving steel sheet pile cofferdam Download PDFInfo
- Publication number
- CN202323955U CN202323955U CN2011204668409U CN201120466840U CN202323955U CN 202323955 U CN202323955 U CN 202323955U CN 2011204668409 U CN2011204668409 U CN 2011204668409U CN 201120466840 U CN201120466840 U CN 201120466840U CN 202323955 U CN202323955 U CN 202323955U
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- sheet pile
- pressure water
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Abstract
The utility model belongs to the technical field of large-volume bearing platform cofferdam construction equipment, and in particular relates to a high-pressure water jet system for assisting in inserting and driving a steel sheet pile cofferdam. The system solves the problems that the conventional steel sheet pile construction technology is difficult in driving and slow in advancing on the thick round gravel soil hardened layer and causes large damage to driving equipment, steel sheet piles and the like. The high-pressure water jet system for assisting in inserting and driving the steel sheet pile cofferdam comprises a high-pressure water gun made of a seamless steel pipe, one end of the high-pressure water gun is an elliptic water outlet end, the other end of the high-pressure water gun is a water inlet end in a threaded sleeve form, the high-pressure water gun is vertically welded in the center of a steel sheet pile groove, and the water inlet end of the high-pressure water gun is connected with a high-pressure water pump. The system solves the problems that the conventional steel sheet pile construction technology is difficult in driving and slow in advancing on the thick round gravel soil hardened layer and causes large damage to driving equipment, steel sheet piles and the like; and the system adopts readily-available making materials, and is convenient to manufacture and safe and easy to operate.
Description
Technical field
The utility model belongs to big volume cushion cap cofferdam construction apparatus technology, is specifically related to a kind of auxiliary inserting and makes steel sheet-pile cofferdam and use the water jetting at high pressure system.
Background technology
Steel sheet pile began in Europe to produce in 20 beginnings of the century, and 1903, Japan adopted in the retaining soil construction in this shop of Mitsui through import first, and based on the special functional performance of steel sheet pile, nineteen twenty-three, Japan's a large amount of imports in the big earthquake calamity reinstatement works in the Northeast are adopted.Steel sheet pile is initial to have the light-duty and hot rolling type of cold bending thin wall, because the former has bigger processing, use limitation, thereby the hot-rolled steel sheet pile becomes the main flow of steel sheet pile production development.The 1950's, China in the railroad bridge cofferdam construction, introduces use by bridge office of the Ministry of Railways from the former Soviet Union first.Along with China's rapid economy development, this building worker's method quick, efficient, environmental protection of steel sheet pile is more widely used in many Important Project project constructions, and has obtained favorable social and economic benefits.Steel sheet pile is factory's finished product, and quality such as intensity, quality, seam precision are guaranteed, and reliability is high, and has durability preferably, can repeat turnover and use, and have characteristics such as easy construction, duration weak point.But when thick circle gravel soil hardening layer geology section is constructed, existing steel sheet pile construction technology injection difficulty, drilling depth is slower, and bigger to infringements such as injection equipment, steel sheet piles.
Summary of the invention
The utility model for solve in the existing steel sheet pile construction technology injection difficulty of thick circle gravel soil hardening layer, drilling depth is slow and to injection equipment, problem that the steel sheet pile equivalent damage is bigger, provides a kind of auxiliary inserting to make steel sheet-pile cofferdam and use the water jetting at high pressure system.
The utility model adopts following technical scheme to realize:
Auxiliary inserting made steel sheet-pile cofferdam and used the water jetting at high pressure system; It is characterized in that comprising the giant of processing with seamless steel pipe; One end of giant is oval-shaped water side; The other end is the water inlet end of threaded sleeve form, and giant vertically is welded in the central authorities of steel sheet pile groove, and the water inlet end of giant connects high-pressure hydraulic pump.
1), water jetting at high pressure the clay between thick circle gravel soil of hardening that can liquefy the utility model is in work progress:, have very the person can be with round gravel soil slightly towards broken; 2), the water that penetrates of water jetting at high pressure can form lubrication with slightly justifying between the gravel soil at steel sheet pile, thereby reduce frictional resistance effectively; Thereby solved in the existing steel sheet pile construction technology injection difficulty of thick circle gravel soil hardening layer, drilling depth is slow and to injection equipment, problem that the steel sheet pile equivalent damage is bigger; The utility model manufacturing materials is simple and easy to look in addition, and is easy to make, and handling safety is simple.
Description of drawings
Fig. 1 is for using the process chart of the utility model construction
Fig. 2 is the structural representation of water jetting at high pressure rifle
Fig. 3 is the main TV structure sketch map of the utility model
Fig. 4 is the lateral view of Fig. 3
Fig. 5 is the sketch map of the auxiliary injection steel sheet pile of the utility model
Among the figure: 1-steel sheet pile, 2-giant, 3-crane, 4-vibrating hammer, 5-high-pressure water pipe, 6-high-pressure hydraulic pump, the common water pipe of 7-.
The specific embodiment
Be described further in conjunction with the specific embodiment of accompanying drawing the utility model.
Auxiliary inserting made steel sheet-pile cofferdam and used the water jetting at high pressure system; Comprise the giant of processing with seamless steel pipe 2; One end of giant 2 is oval-shaped water side; The other end is the water inlet end of threaded sleeve form, and giant 2 vertically is welded in the central authorities of steel sheet pile 1 groove, and the water inlet end of giant 2 connects high-pressure hydraulic pump 6.
Use a certain embodiment of the utility model: the stratum is thick circle gravel hardening layer, and frictional resistance is 650Kpa.Adopt the job practices of conventional injection steel sheet-pile cofferdam, the 90KW vibrating hammer is difficult to make the smooth injection of steel sheet pile to finish steel sheet pile.
Adopt auxiliary the inserting of water jetting at high pressure to beat the steel sheet pile cofferdam construction method, its process chart, as shown in Figure 1.Concrete steps are following:
1, the water jetting at high pressure system makes,
1), giant 2 makes, the employing internal diameter is 15mm, wall thickness is the common seamless steel pipe of 0.5mm, the length of every steel pipe is confirmed as 12m according to the length of steel sheet pile.After the material preparation, ellipse is processed in the water side of steel pipe, oval width is controlled at 2mm, and water inlet end is processed into screw shell, and is as shown in Figure 2.
2), giant 2 made, and it vertically is welded to steel sheet pile 1 groove central authorities, welding is wanted firmly, and guarantees to prevent that steel pipe from being welded leakage, like Fig. 3, shown in 4.The water jetting at high pressure steel sheet pile that completes neatly is placed in the job site.
3), the water jetting at high pressure system links to each other with high-pressure hydraulic pump,
Adopt branch sleeve that the water inlet end of giant 2 is linked to each other with high-pressure hydraulic pump 6.
2, water jetting at high pressure system supplymentary injection steel sheet pile
During the injection steel sheet pile,, adopt 90Kw vibrating hammer 4 down to vibrate on one side on one side through giant 2 jettings.Through this construction technology, can effectively shorten construction period.Insert the friction between fore shaft and the seepage of minimizing steel sheet-pile cofferdam when beating, coating butter mixture ointment in the steel sheet pile fore shaft in order to reduce.
3, excavation of foundation pit
At first adopt common excavator that the excavation of foundation pit scope is excavated; During excavation of foundation pit to ground level-2.0m; The first road steel is installed is enclosed purlin; The interior support by the steel pipe support of HW400 * 400 * 15 * 15 shaped steel collar tie beams and φ 630 * 12 formed, and elevation is installed is-1.5m (supposing that ground elevation is 0).Then, adopt high-front shovel to proceed to be excavated to-5.5m, the second road steel is installed is enclosed purlin.The second road steel encloses after purlin installs, and continues to be excavated to down 50cm of cushion cap bottom surface, and promptly the excavation pit elevation is-10m (supposing that ground elevation is 0).At last, adopt the C30 concrete to carry out back cover, bottom concrete thickness calculates according to head difference inside and outside the steel sheet-pile cofferdam and gets.This engineering bottom concrete thickness is 60cm.
4, support installation in the steel sheet pile
Can know that through calculating twice are set encloses the stability requirement that purlin can satisfy steel sheet pile, be provided with when enclosing purlin and add oblique Eight characters support that enclose purlin and adopt HW400 * 400 * 15 * 15 shaped steel, bearing diagonal adopts 630 * 12 steel pipes at four rotation angle positions.Enclose purlin elevation is installed is respectively-1.5m, 5.0m.Enclose purlin and install and fix, at first the short shaped steel bracket carriage that encloses the purlin deadweight is born in welding below the installation site, and it is fixing near welding to enclose purlin and steel sheet pile then, and it is 5.0 meters that bracket is provided with spacing.It is emphasized that for part Larsen steel sheet pile side and enclose the space that exists between the purlin, must prevent to become flexible and drop with the bquster of different-thickness and steel plate with space jam-pack and firm welding.
5, the steel sheet-pile cofferdam back cover, draw water
The steel sheet pile bottom concrete is the bearing platform construction platform, back cover concrete cast and reach certain intensity after, carry out bearing platform construction after draining water.Bottom concrete adopts the C30 early strength concrete.
Claims (1)
1. auxiliary inserting made steel sheet-pile cofferdam and used the water jetting at high pressure system; It is characterized in that comprising the giant of processing with seamless steel pipe (2); One end of giant (2) is oval-shaped water side; The other end is the water inlet end of threaded sleeve form, and giant (2) vertically is welded in the central authorities of steel sheet pile (1) groove, and the water inlet end of giant (2) connects high-pressure hydraulic pump (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204668409U CN202323955U (en) | 2011-11-22 | 2011-11-22 | High-pressure water jet system for assisting in inserting and driving steel sheet pile cofferdam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204668409U CN202323955U (en) | 2011-11-22 | 2011-11-22 | High-pressure water jet system for assisting in inserting and driving steel sheet pile cofferdam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202323955U true CN202323955U (en) | 2012-07-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204668409U Expired - Lifetime CN202323955U (en) | 2011-11-22 | 2011-11-22 | High-pressure water jet system for assisting in inserting and driving steel sheet pile cofferdam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202323955U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103104136A (en) * | 2013-01-29 | 2013-05-15 | 中国水产科学研究院东海水产研究所 | Simply-equipped rapid mud flat enclosure mesh arrangement method |
| CN105672316A (en) * | 2016-02-03 | 2016-06-15 | 上海市基础工程集团有限公司 | Steel pile sinking damping device and construction method |
-
2011
- 2011-11-22 CN CN2011204668409U patent/CN202323955U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103104136A (en) * | 2013-01-29 | 2013-05-15 | 中国水产科学研究院东海水产研究所 | Simply-equipped rapid mud flat enclosure mesh arrangement method |
| CN103104136B (en) * | 2013-01-29 | 2016-03-30 | 中国水产科学研究院东海水产研究所 | A kind of beach enclosure of simple and fast establishes network method |
| CN105672316A (en) * | 2016-02-03 | 2016-06-15 | 上海市基础工程集团有限公司 | Steel pile sinking damping device and construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120711 |