CN104975611A - Sinking device and method for well point drawdown pipe of liquid soil layer - Google Patents
Sinking device and method for well point drawdown pipe of liquid soil layer Download PDFInfo
- Publication number
- CN104975611A CN104975611A CN201510421516.8A CN201510421516A CN104975611A CN 104975611 A CN104975611 A CN 104975611A CN 201510421516 A CN201510421516 A CN 201510421516A CN 104975611 A CN104975611 A CN 104975611A
- Authority
- CN
- China
- Prior art keywords
- pipe
- well
- points dewatering
- rifle
- wellhole
- 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.)
- Granted
Links
Landscapes
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention relates to a sinking device and method for a well point drawdown pipe of a liquid soil layer. The sinking device comprises a punching device and a pipe burying device. According to the punching device, a punching gun head is connected to the front end of a punching gun, a water hose used for being connected with a high-pressure water pump is connected to the rear end of the punching gun, and a protective cylindrical pipe is arranged outside the punching gun in a sleeving mode. The pipe burying device comprises a push rod and a push plate. According to the push rod, a handle is connected to one end of a connecting rod, and a push rod end socket is connected to the connecting rod in a sleeving mode. According to the push plate, a push plate head is connected to one end of a linkage rod, a push handle is connected to the other end of the linkage rod, and the push plate head is of a semicircular plate like structure provided with an arc-shaped groove so that filler materials placed in a well pit can be compacted. The sinking device is simple in structure, convenient to operate and practical; the punching device, the push plate and a push gun are used in cooperation, and thus the problem that the wall of the well pit deforms due to retraction of sand and stones is effectively solved. By the adoption of the sinking device and method, the working efficiency of sinking of the well point drawdown pipe can be effectively improved.
Description
Technical field
The present invention relates to a kind of construction equipment of well-points dewatering pipe, specifically a kind of the heavy of well-points dewatering pipe of liquid soil layer establishes device and heavy equipment, method.
Background technology
According to the growing tension of Practical Project construction needs and construction land, Engineering Construction Land-Occupation selected areas is gradually near riverine, coastal and beach region, and this type of region mostly is the liquid such as rock or mudflat sludge soil layer under sand.When deep foundation pit construction is carried out in this type of region, first need to carry out excavation of foundation pit, then need during excavation of foundation pit to take the measures such as precipitation, in order to the moisture in drainage base soil, soil solidifying can be impelled, improve foundation strength, slope body lateral displacement and sedimentation can be reduced, stable side slope simultaneously, eliminate quicksand, reduce the protuberance of substrate soil, drier execution conditions are provided, all right reduction of erection time, raising workmanship and guarantee construction safety.
Taking when excavation of foundation pit dewatering measure to be effect in order to make liquid soil layer reach discharging consolidation, therefore needing heavyly to establish well-points dewatering pipe to carry out soil body drainage and underground water is tackled.In prior art, heavy the establishing of well-points dewatering pipe is divided into punching and pipe laying two processes, first washing pipe is placed in position, well point, then starts high-pressure hydraulic pump during punching, by soil punching pine, during punching, washing pipe is vertically inserted in soil, then do and rotate up and down, it is heavy to wash down, thus in soil, forms hole gradually.After wellhole is formed, extract washing pipe immediately, fill-in well point dewatering pipe, and between well-point pipe and hole wall, fill out filling sand filter blanket in time, to collapse soil to prevent hole wall.But under upper sand, the shaping rear wellbore wall of the liquid such as rock or mudflat sludge soil layer condition lower well can shrink reinstatement rapidly, causes well-points dewatering pipe to sink and establishes.
Summary of the invention
The heavy of well-points dewatering pipe that an object of the present invention is just to provide a kind of liquid soil layer establishes device, to restore to the original state and the well-points dewatering pipe that causes cannot sink the problem of establishing to solve in prior art can shrink rapidly at the shaping rear wellbore wall of liquid soil layer condition lower well.
Two of object of the present invention is just to provide a kind of heavy equipment, method of well-points dewatering pipe of liquid soil layer, sinks the lower problem of the efficiency of establishing to solve well-points dewatering pipe.
An object of the present invention is achieved in that a kind of the heavy of well-points dewatering pipe of liquid soil layer establishes device, comprises for going out wellhole to place the hole punched device of well-points dewatering pipe and the pipe burying device for burying well-points dewatering pipe underground in liquid soil layer; The structure of described hole punched device is, be connected in the front end rushing rifle and rush rifle head, being connected to the water-band for connecting high-pressure hydraulic pump in the rear end rushing rifle, having casing pipe in described outer cover of rushing rifle, described casing pipe is used for preventing after wellhole is shaping because liquid soil layer shrinks and burying wellhole;
Described pipe burying device comprises push rod and push pedal;
The structure of described push rod is, is connected to handle in one end of connecting rod, and connecting rod is socketed with push rod end socket; Described push rod end socket is used for the mouth of pipe that shutoff is placed in the well-points dewatering pipe in wellhole, applies external force, to ensure that well-points dewatering pipe is vertical with liquid soil layer basal plane on the handle of described connecting rod end simultaneously.
The structure of described push pedal is, at a termination push pedal head of connecting rod, push away handle in another termination of connecting rod, described push pedal head is the semicircular plate-form structure with arc groove; The arc groove of described push pedal head is connected to the outer wall of well-points dewatering pipe in wellhole, to carry out compacting to the filtrate inserted in wellhole.
The described front end rushing rifle head is taper.
Angular cut is had on the top of described casing pipe.
The present invention sinks the structure of the hole punched device established in device and is, be connected in the front end rushing rifle and rush rifle head, the water-band for connecting high-pressure hydraulic pump is connected in the rear end rushing rifle, the impact force of cycle of higher pressure water is utilized to carry out punching operation, cycle of higher pressure water produces powerful impact force under high-pressure hydraulic pump with the acting in conjunction of rushing rifle, can punching fast, and hole process clearly can be carried out after punching, rushing rifle head adopts taper to rush rifle head, rushing rifle and go deep into the resistance reducing in the process of punching to rush suffered by rifle, punch operation can be carried out under multiple geological conditions.The outer cover of rushing rifle has casing pipe, can protect and rush rifle not by the wearing and tearing of outside silt in the process of rushing rifle punching; Only need take out after wellhole is shaping and rush rifle, casing pipe is retained in wellhole, can directly will be inserted in casing pipe between well-points dewatering pipe, can prevent that wellhole is shaping has the problem that stronger retraction ability causes wellhole to be out of shape afterwards because of silt, make well-points dewatering pipe heavy establish more quick.On connecting rod, push rod end socket is socketed with in push rod, the setting of push rod end socket mainly contains the effect of two aspects, one is by the mouth of pipe place of push rod end socket shutoff at well-points dewatering pipe when using, filtrate can being prevented to be scattering into the phenomenon causing well-points dewatering blockage in well-points dewatering pipe to when pouring filtrate between well-points dewatering pipe outer wall and casing inside pipe wall into; Two are, can by the movement of the handle control well point dewatering pipe of push rod in the process pouring filtrate into, thus the verticality of adjust well point dewatering pipe in time.
The present invention sinks and establishes the structure of device simple, easy to operate and practical, by hole punched device, push pedal with push away supporting the use of rifle, in the process of the shaping rear fill-in well point dewatering pipe of wellhole, make well-points dewatering pipe fast successfully in the heavy casing pipe be set in wellhole, effectively prevent the problem that wellbore wall causes wellhole to be out of shape because of the nerve of sandstone.The present invention effectively can improve well-points dewatering pipe and sink the efficiency of establishing, and is also applicable to other and is applicable to heavy establishing in the soil layer of peupendicular hole point dewatering pipe or horizontal well point dewatering pipe.
Two of object of the present invention is achieved in that a kind of heavy equipment, method of well-points dewatering pipe of liquid soil layer, comprises the following steps:
A, according to treat the dimensions of the heavy well-points dewatering pipe established make match casing pipe, rush rifle, push rod and push pedal;
B, according to well-points dewatering layout plan and field condition, determine that well-points dewatering pipe is heavy and establish position;
C, place's punching is established and clear hole to the heavy of well-points dewatering pipe, the shaping rear reservation of wellhole described casing pipe: rush the inside of rifle through described casing pipe by described, the end of rifle head close to described casing pipe is rushed until described, the described rifle that rushes is received on high-pressure hydraulic pump by described water-band, start high-pressure hydraulic pump, the furnishings place that rifle is vertically inserted into described well-points dewatering pipe is rushed by described, described punching while rifle utilizes cycle of higher pressure water drilling wellhole drives described casing pipe to insert to wellhole depths, until the degree of depth of institute's well bore reaches default wellbore depth, hole process is clearly carried out after wellhole is shaping, extract after being disposed and describedly rush rifle, described casing pipe is retained in the heavy of well-points dewatering pipe and establishes place,
D, described well-points dewatering pipe put into described in protect barrel inner, and be inserted into described well-point pipe predetermined depth, withstand the opening part on described well-points dewatering pipe top with described push rod end socket, filtrate is poured in the space then between described casing pipe and described well-points dewatering pipe into;
After e, filtrate are poured into, extract casing pipe, use the described push pedal head in described push pedal advanced to wellhole depths by filtrate and tamp;
After f, filtrate are filled in, clay is used to seal between the top outer wall of well-points dewatering pipe and wellbore wall.
It is put into by well-points dewatering pipe to protect barrel inner that the present invention sinks equipment, method, and be inserted into institute's well-point pipe predetermined depth, the opening part on well-points dewatering pipe top is withstood with push rod end socket, then filtrate is poured in the space between casing pipe and well-points dewatering pipe into, can prevent filtrate in the process pouring filtrate into from dropping into the inside of well-points dewatering pipe because of carelessness from the entrance of well-points dewatering pipe, thus the accident such as water table rising, earthwork slope collapse that causes because of the blocking of well-points dewatering pipe can be avoided to greatest extent.After filtrate is poured into, use the push pedal head in described push pedal advanced to wellhole depths by filtrate and tamp, what effectively can ensure filtrate fills out filling quality, prevents hole wall to collapse soil.
Accompanying drawing explanation
Fig. 1 is that the present invention sinks the structural representation of the hole punched device established in device.
Fig. 2 is the structural representation of push rod.
Fig. 3 is the structural representation of push pedal.
Fig. 4 is the structural representation of push pedal head.
Fig. 5 is the scheme of installation of well-points dewatering pipe.
Fig. 6 is that schematic diagram is filled out in filtrate filling.
Fig. 7 is that well-points dewatering pipe sinks the view after establishing.
In figure: 1-1, water-band, 1-2, rush rifle, 1-3, rush rifle head, 1-4, casing pipe, 2, push rod, 2-1, connecting rod, 2-2, push rod end socket, 2-3, handle, 3, push pedal, 3-1, connecting rod, 3-2, push pedal head, 3-3, push away handle, 4, base soil, 5, well-points dewatering pipe, 6, filtrate, 7, clay, 8, wellhole.
Detailed description of the invention
Embodiment 1: the heavy of well-points dewatering pipe of liquid soil layer establishes device.
As shown in figures 1 to 6, the present invention is heavy establishes device to comprise hole punched device and pipe burying device.Hole punched device and pipe burying device all support the use with well-points dewatering pipe 5, and its size all matches with the dimensions of well-points dewatering pipe 5.Hole punched device comprises and rushes rifle 1-2, and the rear end rushing rifle 1-2 is connected with water-band 1-1, and the other end of water-band 1-1 is connected with high-pressure hydraulic pump, and the front end rushing rifle 1-2 is provided with and rushes rifle head 1-3, and the front end rushing rifle head 1-3 is taper, conveniently rushes the insertion of rifle 1-2 in wellhole 8.The outer cover of rushing rifle 1-2 has casing pipe 1-4.Casing pipe 1-4 has angular cut near the one end on base soil 4 surfaces, conveniently rushes penetrating of rifle 1-2.Rushing rifle 1-2 adopts sleeve-type high-voltage water to rush rifle.The internal diameter of casing pipe 1-4 is greater than the external diameter rushing rifle head 1-3 rifle body, and the external diameter of casing pipe 1-4 is slightly less than the internal diameter of pre-designed wellhole 8.
As shown in Figure 2 and Figure 5, push rod 2 comprises connecting rod 2-1, one end of connecting rod 2-1 is provided with handle 2-3, connecting rod 2-1 is socketed with push rod end socket 2-2.In the present embodiment, connecting rod 2-1 is set to rhabodoid, and the diameter of connecting rod 2-1 is less than the internal diameter of well-points dewatering pipe 5.Handle 2-3 is arranged on the top of connecting rod 2-1 one end, and handle 2-3 adopts rod type handle, facilitates staff to carry out push-and-pull operation to push rod 2, effectively can save space simultaneously.Push rod end socket 2-2 is socketed on connecting rod 2-1, between the free end and handle 2-3 of connecting rod 2-1, push rod end socket 2-2 is circular flat away from the end face of one end of handle 2-3, namely the contact surface of push rod end socket 2-2 and well-points dewatering tube inlet end is circular flat, and the external diameter of circular flat equals or slightly larger than the external diameter of well-points dewatering pipe 5.
As shown in Fig. 3, Fig. 4, Fig. 6 and Fig. 7, push pedal 3 comprises connecting rod 3-1, push pedal head 3-2 and pushes away handle 3-3, pushes away one end that handle 3-3 is arranged on connecting rod 3-1, and push pedal head 3-2 is arranged on the other end of connecting rod 3-1, and push pedal head 3-2 has arc groove.Push away handle 3-3 in the present embodiment and adopt grasping type handle, push away one end that handle 3-3 is arranged on connecting rod 3-1, push pedal head 3-2 is welded on the end of the connecting rod 3-1 other end.Push pedal head 3-2 is semicircular plate-form structure, push pedal head 3-2 has the arc groove of semicircle shape, in push pedal head 3-2, the internal diameter of arc groove equals or slightly larger than the external diameter of well-points dewatering pipe 5, well-points dewatering pipe 5 can engage by arc groove, push pedal head 3-2 can be made to slide along well-points dewatering pipe 5, to carry out compacting to the filtrate inserted in wellhole.The outer of push pedal head is semicircle, and semicircular diameter equals or is slightly less than the internal diameter of casing pipe 1-4.
Embodiment 2: the heavy equipment, method of the well-points dewatering pipe of liquid soil layer.
It is that adopt described in embodiment 1 heavy establishes device that the present invention sinks equipment, method, and the concrete steps of heavy equipment, method are:
(1) as shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4 and Fig. 7, according to treat the dimensions of the heavy well-points dewatering pipe 5 established make match casing pipe 1-4, rush rifle 1-2, push rod 2 and push pedal 3.Its dimensional fits has carried out brief description in embodiment 1, that is: the internal diameter of casing pipe 1-4 is greater than the external diameter rushing rifle head 1-3 rifle body, and the external diameter of casing pipe 1-4 equals the internal diameter of pre-designed wellhole 8; The diameter of connecting rod 2-1 is less than the internal diameter of well-points dewatering pipe 5; The contact surface of push rod end socket 2-2 and well-points dewatering tube inlet end is circular flat, and the external diameter of circular flat equals or slightly larger than the external diameter of well-points dewatering pipe 5; In push pedal head 3-2, the internal diameter of arc groove equals or slightly larger than the external diameter of well-points dewatering pipe 5; Be arc away from the outer of the planar end pushing away handle 3-3 one end in push pedal head 3-2, and the diameter of arc equal or is slightly less than the internal diameter of casing pipe 1-4.
(2) as shown in Figure 1, according to well-points dewatering layout plan and field condition, determine that the heavy of well-points dewatering pipe establishes position.Determine well-points dewatering pipe heavy establish position after, well-points dewatering pipe sink establish place the surface layer of base soil 4 dig the groove of certain depth, conveniently rush the insertion of rifle 1-2.
(3) as shown in Figure 1 and Figure 7, place's punching is established and clear hole to the heavy of well-points dewatering pipe 5, the shaping rear reservation casing pipe 1-4 of wellhole 8: first the indentation, there of rushing rifle head aligning casing pipe 1-4 of rushing rifle 1-2 is guided and rush the inside that rifle 1-2 penetrates into casing pipe 1-4, until rush the end of rifle head 1-3 close to casing pipe 1-4, receive on high-pressure hydraulic pump by rushing rifle 1-2 by water-band 1-1, start high-pressure hydraulic pump, to rifle 1-2 be rushed vertically be inserted into the top layer of the base soil 4 at the furnishings place of well-points dewatering pipe 5, casing pipe 1-4 is driven also to insert to wellhole 8 depths while rushing the cycle of higher pressure water drilling wellhole 8 that rifle 1-2 utilizes high-pressure hydraulic pump to provide, until the degree of depth of institute's well bore 8 reaches default wellhole 8 degree of depth, hole process is clearly carried out after wellhole 8 is shaping, extract after being disposed and rush rifle 1-2, casing pipe 1-4 is retained in the heavy of well-points dewatering pipe and establishes place.Shaping rear the carried out clear hole process of wellhole 8 is removes clean by the silt in the casing pipe 1-4 be placed in wellhole 8, be convenient to the accessible inside penetrating into casing pipe 1-4 of later well-points dewatering pipe 5, the silt staying casing pipe 1-4 inside when also can effectively avoid late well point dewatering pipe to draw water is drawn into the inside of well-points dewatering pipe 5, causes the blocking of well-points dewatering pipe 5.
(4) as shown in Figure 5, well-points dewatering pipe 5 is put into casing pipe 1-4 inner, well-points dewatering pipe 5 is placed into the center of casing pipe 1-4, and be inserted into well-points dewatering pipe 5 predetermined depth, withstand the opening part on well-points dewatering pipe 5 top with push rod end socket 2-2, filtrate 6 is poured in the space then between casing pipe 1-4 and well-points dewatering pipe 5 into.While toppling over filtrate 6, withstand the top end opening place of well-points dewatering pipe 5 always with push rod 2, keep the verticality of well-points dewatering pipe 5, namely utilize push rod 2 to withstand well-points dewatering pipe 5 and make well-points dewatering pipe 5 keep vertical with base soil 4 top layers always.
(5) as shown in Figure 6 and Figure 7, after pre-set filtrate 6 is poured into, extract casing pipe 1-4, use the push pedal head 3-2 in push pedal 3 that filtrate 6 is advanced to wellhole 8 depths and tamped.Coordinate with well-points dewatering pipe 5 with the arc groove card on push pedal head 3-2, make the basal sliding of push pedal head 3-2 along well-points dewatering pipe 5 to casing pipe 1-4, until filtrate 6 is compacted.Filtrate 6 in the present invention adopts coarse grained yellow ground, can ensure the gas permeability of drainage layer in wellhole 8.While extracting casing pipe 1-4, push pedal 2 also will be used to keep the position of well-points dewatering pipe.
(6), as shown in Figure 7, after filtrate 6 is filled in, clay 7 is used to seal between the top of well-points dewatering pipe 5 and wellhole 8 hole wall.
The present invention to be applicable under sand the heavy of well-points dewatering pipe under the liquid such as rock or mudflat sludge soil layer condition and to establish.
Claims (5)
1. the heavy of well-points dewatering pipe of liquid soil layer establishes a device, comprises for going out wellhole to place the hole punched device of well-points dewatering pipe and the pipe burying device for burying well-points dewatering pipe underground in liquid soil layer; It is characterized in that,
The structure of described hole punched device is, be connected in the front end rushing rifle and rush rifle head, being connected to the water-band for connecting high-pressure hydraulic pump in the rear end rushing rifle, having casing pipe in described outer cover of rushing rifle, described casing pipe is used for preventing after wellhole is shaping because liquid soil layer shrinks and burying wellhole;
Described pipe burying device comprises push rod and push pedal;
The structure of described push rod is, is connected to handle in one end of connecting rod, and connecting rod is socketed with push rod end socket; Described push rod end socket is used for the mouth of pipe that shutoff is placed in the well-points dewatering pipe in wellhole, applies external force, to ensure that well-points dewatering pipe is vertical with liquid soil layer basal plane on the handle of described connecting rod end simultaneously.
2. the heavy of well-points dewatering pipe of liquid soil layer according to claim 1 establishes device, it is characterized in that, the structure of described push pedal is, at a termination push pedal head of connecting rod, push away handle in another termination of connecting rod, described push pedal head is the semicircular plate-form structure with arc groove; The arc groove of described push pedal head is connected to the outer wall of well-points dewatering pipe in wellhole, to carry out compacting to the filtrate inserted in wellhole.
3. the heavy of well-points dewatering pipe of liquid soil layer according to claim 1 establishes device, it is characterized in that, the described front end rushing rifle head is taper.
4. the heavy of well-points dewatering pipe of liquid soil layer according to claim 1 establishes device, it is characterized in that, has angular cut on the top of described casing pipe.
5. a heavy equipment, method for the well-points dewatering pipe of liquid soil layer, is characterized in that, comprise the following steps:
A, according to treat the dimensions of the heavy well-points dewatering pipe established make match casing pipe, rush rifle, push rod and push pedal;
B, according to well-points dewatering layout plan and field condition, determine that well-points dewatering pipe is heavy and establish position;
C, place's punching is established and clear hole to the heavy of well-points dewatering pipe, the shaping rear reservation of wellhole described casing pipe: rush the inside of rifle through described casing pipe by described, the end of rifle head close to described casing pipe is rushed until described, the described rifle that rushes is received on high-pressure hydraulic pump by described water-band, start high-pressure hydraulic pump, the furnishings place that rifle is vertically inserted into described well-points dewatering pipe is rushed by described, described punching while rifle utilizes cycle of higher pressure water drilling wellhole drives described casing pipe to insert to wellhole depths, until the degree of depth of institute's well bore reaches default wellbore depth, hole process is clearly carried out after wellhole is shaping, extract after being disposed and describedly rush rifle, described casing pipe is retained in the heavy of well-points dewatering pipe and establishes place,
D, described well-points dewatering pipe put into described in protect barrel inner, and be inserted into described well-point pipe predetermined depth, withstand the opening part on described well-points dewatering pipe top with described push rod end socket, filtrate is poured in the space then between described casing pipe and described well-points dewatering pipe into;
After e, filtrate are poured into, extract casing pipe, use the described push pedal head in described push pedal advanced to wellhole depths by filtrate and tamp;
After f, filtrate are filled in, clay is used to seal between the top outer wall of well-points dewatering pipe and wellbore wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510421516.8A CN104975611B (en) | 2015-07-17 | 2015-07-17 | The heavy of the well-points dewatering pipe of liquid soil layer sets device and heavy equipment, method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510421516.8A CN104975611B (en) | 2015-07-17 | 2015-07-17 | The heavy of the well-points dewatering pipe of liquid soil layer sets device and heavy equipment, method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104975611A true CN104975611A (en) | 2015-10-14 |
| CN104975611B CN104975611B (en) | 2017-01-04 |
Family
ID=54272544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510421516.8A Active CN104975611B (en) | 2015-07-17 | 2015-07-17 | The heavy of the well-points dewatering pipe of liquid soil layer sets device and heavy equipment, method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104975611B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105544573A (en) * | 2015-12-29 | 2016-05-04 | 中国水利水电第十三工程局有限公司 | Water pressure jetting type well completion construction method of dewatering tube well |
| CN106759409A (en) * | 2016-11-07 | 2017-05-31 | 中铁三局集团广东建设工程有限公司 | A kind of water-rich sand layer regional precipitation well construction method |
| CN108906865A (en) * | 2018-06-19 | 2018-11-30 | 绍兴市上虞众联环保有限公司 | A kind of method of soil remediation |
| CN109577458A (en) * | 2018-12-27 | 2019-04-05 | 中国电建集团成都勘测设计研究院有限公司 | The method for embedding of pipeline aerial crossing sandy soils stream section |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001214452A (en) * | 2000-02-02 | 2001-08-07 | East Japan Railway Co | Ground-water level lowering method |
| CN103883796A (en) * | 2014-04-07 | 2014-06-25 | 葛洲坝集团第一工程有限公司 | Hand digging type pipe jacking construction device and method for sediment and sludge areas |
| CN203855976U (en) * | 2014-03-24 | 2014-10-01 | 中国核工业华兴建设有限公司 | Dredging device for dewatering well |
-
2015
- 2015-07-17 CN CN201510421516.8A patent/CN104975611B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001214452A (en) * | 2000-02-02 | 2001-08-07 | East Japan Railway Co | Ground-water level lowering method |
| CN203855976U (en) * | 2014-03-24 | 2014-10-01 | 中国核工业华兴建设有限公司 | Dredging device for dewatering well |
| CN103883796A (en) * | 2014-04-07 | 2014-06-25 | 葛洲坝集团第一工程有限公司 | Hand digging type pipe jacking construction device and method for sediment and sludge areas |
Non-Patent Citations (1)
| Title |
|---|
| 刘哲钧等: "井点降水成孔设备——套管冲枪", 《冶金建筑》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105544573A (en) * | 2015-12-29 | 2016-05-04 | 中国水利水电第十三工程局有限公司 | Water pressure jetting type well completion construction method of dewatering tube well |
| CN105544573B (en) * | 2015-12-29 | 2017-05-10 | 中国水利水电第十三工程局有限公司 | Water pressure jetting type well completion construction method of dewatering tube well |
| CN106759409A (en) * | 2016-11-07 | 2017-05-31 | 中铁三局集团广东建设工程有限公司 | A kind of water-rich sand layer regional precipitation well construction method |
| CN106759409B (en) * | 2016-11-07 | 2019-02-26 | 中铁三局集团广东建设工程有限公司 | A kind of water-rich sand layer regional precipitation well construction method |
| CN108906865A (en) * | 2018-06-19 | 2018-11-30 | 绍兴市上虞众联环保有限公司 | A kind of method of soil remediation |
| CN109577458A (en) * | 2018-12-27 | 2019-04-05 | 中国电建集团成都勘测设计研究院有限公司 | The method for embedding of pipeline aerial crossing sandy soils stream section |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104975611B (en) | 2017-01-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202047416U (en) | Well sealing device of pressure-reducing and dewatering well at elevator well pit | |
| CN101736735B (en) | Composite reinforcing method for combining soft foundation light well point pipe with plastic drainage plate | |
| CN104975611B (en) | The heavy of the well-points dewatering pipe of liquid soil layer sets device and heavy equipment, method | |
| CN103184734A (en) | Implanted and grouted compound pile and construction method | |
| CN107023026A (en) | A kind of sealing bottom type caisson wall and construction method | |
| CN105714772A (en) | Re-drilling concrete wall protecting method for hole formation of rock-socketed pile in karst region | |
| CN105714773A (en) | Foundation treatment method | |
| CN102888834A (en) | Construction method of large-diameter crushed stone pile | |
| CN110158585A (en) | A kind of device and construction method for cutting down Soft Soil Area pile foundation negative friction force | |
| CN203213101U (en) | Embedding grouting combined pile | |
| CN105625420B (en) | A kind of extension type support with manually dug piles construction and its construction method | |
| CN104264653A (en) | Superhigh energy level dynamic compaction and replacement compatible construction process | |
| CN108277794B (en) | Vacuum power consolidation composite drainage system for hydraulic filling soft soil foundation | |
| CN106869153B (en) | A kind of method of the quick soft soil foundation treatment of well-points dewatering | |
| CN105040705A (en) | Ground foundation treatment construction technology under multi-karst-cave geological conditions | |
| CN205688454U (en) | Power transmission tower resistance to plucking well foundation | |
| CN208472716U (en) | Crack geology mortar leakage prevention drill-pouring pilework | |
| CN108442356B (en) | Construction process of vacuum power consolidation composite drainage system for hydraulic filling soft soil foundation | |
| CN102979105A (en) | Underground water control method of wellhole grouting and seepage insulation | |
| CN102535462A (en) | Method for constructing anchor cable on sand layer | |
| CN204982857U (en) | Three -dimensional multichannel drainage combination tamping unit of low level negative pressure | |
| CN104895078A (en) | Precast pile construction method focusing on end bearing force | |
| CN104294817B (en) | The construction method of concrete-pile | |
| CN102493455A (en) | Method for removing foundation piles | |
| CN108005065A (en) | The constructing structure and construction method of PHC static pressure pipe piles |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |