CN110158605A - A kind of foundation pit method of construction - Google Patents
A kind of foundation pit method of construction Download PDFInfo
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- CN110158605A CN110158605A CN201910601672.0A CN201910601672A CN110158605A CN 110158605 A CN110158605 A CN 110158605A CN 201910601672 A CN201910601672 A CN 201910601672A CN 110158605 A CN110158605 A CN 110158605A
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- foundation pit
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
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- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses a kind of foundation pit methods of construction, belong to building engineering field.Guide pile is arranged in the surrounding for needing to construct, and guide bracket is installed between guide pile the following steps are included: a, determine construction location in the present invention；B, by excavating so that the first one-step forming of foundation pit, and is arranged protective device in the crater wall of foundation pit；C, by ponding extraction discharge inside foundation pit, suspension device is set in foundation pit；D, casing is buried in foundation pit, and gets stake holes by the way of recycling drilling construction, and residual mud in stake holes is cleaned out by taking out slurry mode；E, support column is set in stake holes, the fixed support column of pump truck casting concrete；F, bed course is produced using bed course manufacture system, bed course is placed in foundation pit, and bed course is connected with support column.The present invention is good using the base pit stability that above-mentioned method of construction is formed, and drainage problem can be efficiently solved when bottom water, entire method of construction is practical, easy to operate.
Description
Technical field
The present invention relates to construction engineering technical fields, more specifically to a kind of foundation pit method of construction.
Background technique
Foundation pit refers to that foundation pit, which belongs to, to be faced to carry out the below ground space that the construction on building basis and basement is excavated
When property engineering, effect are to provide a space, so that the operation that builds on basis is carried out according to the specified position of design, open
It digs foundation pit to stand in the breach it should be noted that the stability and water-proof drainage of foundation pit works, is in addition exactly that bed course conduct in foundation pit is faced
When engineering application.The stability and drainage problem for how solving foundation pit are current urgent problems to be solved.
Through retrieving, the development about foundation pit and its relevant technologies has a large amount of patent disclosures, such as Chinese Patent Application No.:
2019100024742, invention and created name are as follows: a kind of foundation pit supporting system and its method of construction, this application discloses one kind
Foundation pit supporting system, for providing supporting for foundation pit, comprising: the first campshed, the second campshed and third campshed, the first campshed,
Second campshed and third campshed include several support stakes；First campshed, the second campshed and third campshed are arranged successively
Setting；If the second campshed along short transverse respectively with the first campshed and third campshed by several cant beams, several horizontal beams and
Dry concrete wallboard connects to form foundation pit supporting system.Connected between each campshed of this application by several cant beams and several horizontal beams
It is connected into truss structure, truss structure rigidity is bigger, and the rigidity of foundation pit supporting system is promoted to greatly promote.
For another example Chinese Patent Application No.: 201310380666X, invention and created name are as follows: a kind of foundation pit supporting construction and its
Construction method, this application discloses a kind of foundation pit supporting construction and its construction method, which includes foundation pit branch
Fender pile, water-stop curtain, back-pressure soil and horizontal lattice bracing members, foundation pit supporting pile are set as cast-in-situ steel reinforced concrete drilling
Bored concrete pile, water-stop curtain are set as the engaged cement mixing method of a row, and water-stop curtain setting is corresponding in foundation pit supporting pile
Foundation pit periphery side, horizontal lattice bracing members are arranged between cap beam and Reinforced Concrete Corbels.Building pattern foundation pit supporting structure knot
When structure, by by basin earthwork excavation mode in conjunction with foundation pit supporting construction, it is ensured that the sealing and Bit andits control of foundation pit not only increase
The reliability of foundation pit supporting construction, construction is simple, short time limit, economy are strong.The stability that the above application case is built in foundation pit
With make certain optimization in waterproof performance, but still there is certain room for promotion.
Summary of the invention
1. technical problems to be solved by the inivention
It is an object of the invention to overcome the shortcomings of that there are stability and waterproofness for foundation pit in the prior art, provide one kind
Foundation pit method of construction, the base pit stability formed by above-mentioned method of construction is good, can be effectively solved when bottom water
Drainage problem.
2. technical solution
In order to achieve the above objectives, technical solution provided by the invention are as follows:
A kind of foundation pit method of construction of the invention, comprising the following steps:
A, it determines construction location, guide pile is set in the surrounding for needing to construct, and install guide bracket between guide pile；
B, by excavating so that the first one-step forming of foundation pit, and is arranged protective device in the crater wall of foundation pit；
C, by ponding extraction discharge inside foundation pit, suspension device is set in foundation pit；
D, casing is buried in foundation pit, and gets stake holes by the way of recycling drilling construction, and to mud remaining in stake holes
Slurry is cleaned out by taking out slurry mode；
E, support column is set in stake holes, the fixed support column of pump truck casting concrete；
F, bed course is produced using bed course manufacture system, bed course is placed in foundation pit, and bed course is connected with support column.
Further, the suspension device in step c includes the multiple sheet piles being sequentially connected being set in foundation pit, and phase
It is connected between adjacent sheet pile by fixed cell, the bottom of sheet pile is provided with drainage hole, is provided with partition in sheet pile, and partition is by plate
The space that stake surrounds is divided into epicoele and cavity of resorption, and collection water control valve is provided in the middle part of partition, and draining pump one end is by pipeline under
Chamber is connected.
Further, fixed cell includes the bracket, reinforcing bar and pawl for clamping sheet pile, and the both ends of reinforcing bar are set respectively
It is equipped with bracket, bracket includes pedestal and the fixed part for installing pawl, and fixed part is set on pedestal, the inside setting of pedestal
There are at least two annular grooves matched with sheet pile shape, the first through hole for installing reinforcing bar is also provided on pedestal, and
Between annular groove, pawl is set on fixed part the first through hole, and pawl includes the galianconism and length of the connected setting in end
Arm, it is long-armed on offer open slot for installing torsion elastic component, torsion elastic component one end is set on long-armed, and the other end is
It is set on fixed part, the end that torsion elastic component is used to that galianconism to be made inwardly to be clamped on reinforcing bar.
Further, the two sides of pawl are respectively arranged with torsion elastic component, and pawl and torsion elastic component pass through company
Order member is set on fixed part, which includes pin shaft and split pin, offers the second through-hole on fixed part, on pawl
Also offer connection through-hole, pin shaft is threaded onto fixed part, pawl and torsion elastic component, and by split pin be locked in
On fixed part；Or the connection unit is fastened using bolt and nut cooperation.
Further, collection water control valve includes inner cylinder, connecting rod and sealing ring, and plate, plate are provided in inner cylinder
The internal cavities of inner cylinder are divided into upper plenum and lower cavity, the third that connection upper plenum and lower cavity are provided on plate is logical
Hole, connecting rod are threaded onto third through-hole, and are arranged with sealing ring at the top of connecting rod, and the top edge of sealing ring is overlapped in inner cylinder
Top side wall, connecting rod lower part are arranged with spring element, which is located in lower cavity.
Further, the bed course in step f includes template, which includes passing sequentially through the cope plate for pouring and being connected
Layer, middle template layer and lower template layer, middle template layer be integrally formed and be respectively equipped in the upper and lower surfaces of middle template layer to
Outer extension and the extended segment that is spaced apart so that between the upper surface of middle template layer and cope plate layer, the lower surface of middle template layer
The spatia surrounded by extended segment is all had between lower template layer.
Further, the bed course manufacture system in step f includes the fixed mechanism for fixed form, fixed mechanism packet
Main body, guide post, drive shaft and pressing plate are included, longitudinal hole for placing guide post is offered in main body and for placing drive shaft
Transverse holes, longitudinal hole and the perpendicular intersection of transverse holes；Guide post lower part offers the column inner via hole passed through for drive shaft, in column
The interior lower surface of through-hole is lower lozenges, and cutting is formed with cooperation compatible with the lower lozenges on the lower surface of drive shaft
Inclined-plane；Telescopic resilience part is provided in the cavity formed before guidance column bottom and longitudinal hole bottom；Pressing plate is set to guide post
Top, template are set on guide post by mounting hole, and are located at below pressing plate.
Further, fixed mechanism further includes the guide sleeves of elasticity, and guide sleeves are set on guide post and guide sleeves bottom
In main body, lower surface and the guide sleeves upper surface of template fit in portion.
Further, the bed course manufacture system in step f further includes the survey flattening mechanism for being set to template upper surface, is surveyed flat
Mechanism includes platform, longitudinal rod and pedestal, and platform is the slab construction for being set to template upper surface, and longitudinal rod bottom end and platform turn
Dynamic connection, longitudinal rod top and pedestal are connected, and are also rotatably connected to the shutter of symmetric geometry on longitudinal rod, shutter with
The tie point of longitudinal rod is located on central axes locating for shutter center, and platform two sides are respectively arranged with below shutter
Left connecting rod and right connecting rod, left connecting rod include the be placed in front rod and rear connecting rod of shutter front and rear sides, preceding company
The top of extension bar and rear connecting rod is respectively arranged with issuing side and the receiving end of photosensitive sensor, the issuing side of photosensitive sensor and
Receiving end is towards shutter, and in the state that platform is in horizontal plane, photosensitive sensor is located at the basal surface position of shutter
And the receiving end of photosensitive sensor is blocked cannot receive optical signal；Right connecting rod is identical with the quantity and structure of left connecting rod,
And right connecting rod and left connecting rod are using the central axes of shutter as line of symmetry bilateral symmetry.
Further, the bed course manufacture system in step f further includes the detection unit for detection template aridity, should
Detection unit includes two sound wedges, and two sound wedges are separately positioned on template upper and lower surfaces, and sound wedge surface is formed with inclined-plane,
It is respectively corresponded on the inclined-plane of two sound wedges and is provided with ultrasonic transmitter and ultrasonic receiver.
3. beneficial effect
Using technical solution provided by the invention, compared with prior art, have the following beneficial effects:
(1) a kind of foundation pit method of construction of the invention, the base pit stability of formation is good, can be effective when bottom water
Solves drainage problem, multiple sheet piles are sequentially connected and are fixed respectively by fixed cell by suspension device, prevent it from toppling over；
It is provided with partition in sheet pile, is provided with collection water control valve in the middle part of partition, on the one hand user's draining is reminded by collection water control valve, separately
On the one hand can voluntarily separating and filtering silt, entire foundation pit support device is reasonable in design, easy to use, and helps to protect
Environment, it is practical.
(2) a kind of foundation pit method of construction of the invention, is equipped with bed course in foundation pit, and bed course template includes passing sequentially through to pour
Build the cope plate layer, middle template layer and lower template layer being connected, using three-layer composite structure, and middle template layer and cope plate layer and
Several cross grid interstitial structures are formed between lower template layer, so that entire template tensile strength is high, anti-bending strength is high, no
It is easily-deformable；And it is affected by temperature that variable quantity is small, and shrinking percentage of expanding with heat and contract with cold is low；Water-resistance is good, even if verified be fully immersed in water
In more days, will not deform or rot because of dampness.
Detailed description of the invention
Fig. 1 is a kind of flow diagram of foundation pit method of construction of the invention；
Fig. 2 is the structural schematic diagram of foundation pit support device in the present invention；
Fig. 3 is the structural schematic diagram of fixed cell in the present invention；
Fig. 4 is the schematic cross-sectional view of bracket in the present invention；
Fig. 5 is the structural schematic diagram of pawl in the present invention；
Fig. 6 is the overlooking structure diagram of fixed cell in the present invention；
Fig. 7 is the structural schematic diagram for collecting water control valve in the present invention；
Fig. 8 is the formwork structure schematic diagram of foundation pit bed course in the present invention；
Fig. 9 is the structural schematic diagram of the manufacture system of foundation pit bed course in the present invention；
Figure 10 is the structural schematic diagram of fixed mechanism in the present invention；
Figure 11 is the partial enlargement structural representation in Figure 10 at A；
Figure 12 is the left view structural representation that flattening mechanism is surveyed in the present invention；
Figure 13 is the structural schematic diagram of shutter in the present invention；
Figure 14 is the structural schematic diagram of testing agency in the present invention.
Label declaration in schematic diagram:
100, sheet pile；110, epicoele；120, cavity of resorption；121, drainage hole；130, by-pass filtration unit；140, secondary filtration list
Member；150, draining pump；160, partition；170, collect water control valve；
200, fixed cell；210, bracket；211, pedestal；212, fixed part；213, first through hole；214, the second through-hole；
215, annular groove；216, reinforcing rib；220, reinforcing bar；230, pawl；231, galianconism, 232, long-armed；233, open slot；240, it turns round
Power elastic component；250, pin shaft；251, split pin；
171, outer cylindrical body；172, inner cylinder；173, sealing ring；174, connecting rod；175, upper plenum；176, plate；177,
Three through-holes；178, lower cavity；179, spring element；
300, template；310, cope plate layer；320, middle template layer；330, lower template layer；340, spatia；
400, fixed mechanism；410, main body；411, longitudinal hole；412, transverse holes；420, guide sleeves；430, pressing plate；440,
Guide post；441, column inner via hole；442, lower lozenges；450, drive shaft；451, cooperate inclined-plane；452, limited post；460, it stretches
Elastic component；470, taper knob；
500, flattening mechanism is surveyed；510, platform；520, left connecting rod；530, right connecting rod；521, front rod；522, photosensitive
Sensor；523, rear connecting rod；540, longitudinal rod；550, shutter；551, lug is blocked；560, pedestal；
600, detection unit；610, sound wedge；620, ultrasonic transmitter；630, ultrasonic receiver.
Specific embodiment
To further appreciate that the contents of the present invention, in conjunction with attached drawing, the present invention is described in detail.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
The present invention will be further described with reference to the examples below.
Embodiment 1
As shown in Figure 1, a kind of foundation pit method of construction of the present embodiment, comprising the following steps:
A, it determines construction location, guide pile is set in the surrounding for needing to construct, and install guide bracket between guide pile；
B, by excavating so that the first one-step forming of foundation pit, and is arranged protective device in the crater wall of foundation pit；
C, by ponding extraction discharge inside foundation pit, suspension device is set in foundation pit；
D, casing is buried in foundation pit, and gets stake holes by the way of recycling drilling construction, and to mud remaining in stake holes
Slurry is cleaned out by taking out slurry mode；
E, support column is set in stake holes, the fixed support column of pump truck casting concrete；
F, bed course is produced using bed course manufacture system, bed course is placed in foundation pit, and bed course is connected with support column.
The base pit stability formed using above-mentioned method of construction is good, can efficiently solve draining when bottom water and ask
Topic, entire method of construction is practical, easy to operate.Guide pile employed in the present embodiment, guide bracket, protective device, shield
Cylinder, support column arrangement and setting technology belong to known general routine techniques in industry, and details are not described herein.
Wherein as shown in Fig. 2-Fig. 7, foundation pit support device used in the present embodiment step c, including be set in foundation pit
Multiple sheet piles 100 being sequentially connected, and between adjacent sheet pile 100 by fixed cell 200 be connected, multiple sheet piles 100 exist
Certain space is surrounded in foundation pit, wherein the bottom of sheet pile 100 is provided with drainage hole 121, as shown in Fig. 2, being provided in sheet pile 100
Partition 160, the space that sheet pile 100 surrounds is divided into epicoele 110 and cavity of resorption 120 by partition 160, and collection is provided in the middle part of partition 160
Water control valve 170,150 one end of draining pump are connected by pipeline with cavity of resorption 120.
Foundation pit support device further includes the filter element set gradually with draining pump 150, the filter element in the present embodiment
For filtering silt, by-pass filtration unit 130 and secondary filtration unit 140, the discharge outlet of by-pass filtration unit 130 are specifically included
It is connected with the water inlet of secondary filtration unit 140, the discharge outlet of secondary filtration unit 140 is connected with draining pump 150, and second level mistake
Reflux line is provided on filter unit 140 to be connected with by-pass filtration unit 130.Divided by muddy water of the secondary filtration to discharge
From filtering, in situ, water section is discharged the release of solid particle portion collection.
Partition 160 is the pyramidal structure constantly declined from 100 edge of sheet pile to center extended height in the present embodiment,
Mounting hole is offered at the center least significant end of partition 160, collects water control valve 170 and is equipped in the mounting hole, partition 160
Conical design makes the water in the cavity of resorption 120 larger, and opening being capable of water when collection 170 water of water control valve is stretched to epicoele 110
In diversity, convenient for draining；And on the one hand collecting water control valve 170 then can remind user to drain in time, it on the other hand can be voluntarily
Separating and filtering silt, use are more convenient.
Multiple sheet piles 100 are sequentially connected and are fixed respectively by fixed cell 200 by foundation pit support device in the present embodiment,
It effectively prevent it to topple over, and the discharge amount of solid particle is reduced convenient for separation solid particle and muddy water by setting double-filtration,
Help to protect environment, reduces blocking drainage pipeline, overall construction design advantages of simple, easy to use, practicability is stronger, is convenient for
It promotes and applies.
Embodiment 2
A kind of foundation pit method of construction of the present embodiment, substantially with embodiment 1, further, foundation pit branch in the present embodiment
The fixed cell 200 of protection unit includes the bracket 210, reinforcing bar 220 and pawl 230 for clamping sheet pile 100, as shown in figure 3, steel
The both ends of muscle 220 have been symmetrically arranged bracket 210, and sheet pile 100 is clamped between the bracket 210 at both ends, and bracket 210 includes
Pedestal 211 and fixed part 212 for installing pawl 230, wherein fixed part 212 is set on pedestal 211, pedestal 211 it is interior
Side is provided at least two annular grooves 215 matched with 100 shape of sheet pile, concretely two annular grooves 215, this reality
100 structure of sheet pile that extension wave-shaped specifically can be used in example is applied, there is certain overlap joint overlay region between adjacent two boards stake 100
Domain, in the overlap joint overlapping region, setting fixed cell 200 makes it be connected, and the annular groove 215 of two sides is clamped on sheet pile 100 just
Inside and outside, the first through hole 213 for installing reinforcing bar 220 is also provided on pedestal 211, and the first through hole 213 is located at
Between two neighboring annular groove 215, pawl 230 is set on fixed part 212, as shown in figure 5, pawl 230 includes end phase
The galianconism 231 set and long-armed 232 are connected with, the open slot 233 for installing torsion elastic component 240, torsion are offered on long-armed 232
Elastic component 240 (such as torque spring) one end is set on long-armed 232, and the other end is set on fixed part 212, torsion elastic component
240 for making galianconism 231 inwardly be clamped on the end of reinforcing bar 220.Reinforcing bar 220 is overlapped from the overlap joint of sheet pile 100 in the present embodiment
It is passed through in region, and both ends are held out against by the galianconism 231 of pawl 230, prevent reinforcing bar 220 is from shifting, to realize to sheet pile
100 clamping fastener.
Specifically as shown in fig. 6, fixed part 212 is U-shaped structure in the present embodiment, fixed part 212 is set on pedestal 211 simultaneously
Form U-shaped cavity, the first through hole 213 for installing reinforcing bar 220 is located in the U-shaped cavity, and the hole wall of first through hole 213 with it is U-shaped
The segmental arc inner wall of chamber fits, and pawl 230 and torsion elastic component 240 are all set on the inside of the U-shaped cavity, i.e. the end of reinforcing bar 220
Portion after passing through first through hole 213 is bonded with the U-shaped cavity most inner side of fixed part 212；And the two sides of pawl 230 are respectively arranged with
Torsion elastic component 240, pawl 230 and torsion elastic component 240 are set on fixed part 212 by connection unit, the connection list
Member includes pin shaft 250 and split pin 251, and correspondence offers the second through-hole 214, pawl 230 on the two sides side wall of fixed part 212
Galianconism 231 and long-armed 232 joint also offer connection through-hole, pin shaft 250 is threaded onto the second through-hole of fixed part 212
214, it in the through-hole and torsion elastic component 240 on pawl 230, and is locked by split pin 251 on fixed part 212；Make
Pawl 230 is located at 212 inside of fixed part and all there are the tension of torsion elastic component 240 in two sides, the galianconism of pawl 230 in the present embodiment
Shape forms an angle opening between 231 and long-armed 232, and galianconism 231 is located inside close to reinforcing bar 220, and open slot 233 is located at long-armed
232 middle and upper part, so that holding out against galianconism 231 inwardly in 220 end of reinforcing bar under the elastic force effect of torsion elastic component 240；Together
Reason, connection unit can also be fastened using bolt and nut cooperation in the present embodiment, and bolt is threaded onto the of fixed part 212
In two through-holes 214, the through-hole on pawl 230 and torsion elastic component 240, and by nut check and fixed part 212.So just
In disassembly installation pawl 230 and bilateral torsion elastic component 240, saving of labor of saving trouble.
The axis extending direction of the axis of first through hole 213 and the second through-hole 214 is perpendicular in the present embodiment, helps to protect
Hinder effective clamping of the pawl 230 to 220 end of reinforcing bar, and the side of fixed part 212 is additionally provided with reinforcing rib 216, the reinforcing rib
216 sides are fixedly connected with fixed part 212, and 216 bottom of reinforcing rib is fixedly connected with bracket 210, specifically, the reinforcing rib 216 setting
In the U-shaped opening back side of fixed part 212.
Cooperation in the present embodiment by bracket 210, bilateral torsion elastic component 240 and pawl 230 was so that entirely clamped
The journey time shortens, and efficiency improves, and high strength alloy steel can be used in clamping, the convenient saving of labor of process for dismantling sheet pile 100, pawl 230,
It prolongs its service life, while making 230 dismounting and change of pawl convenient using flexible mounting means, entire fixed cell 200
It may be reused.
Embodiment 3
A kind of foundation pit method of construction of the present embodiment, substantially same above-described embodiment, further, foundation pit in the present embodiment
The collection water control valve 170 of suspension device includes inner cylinder 172, connecting rod 174 and sealing ring 173, as shown in fig. 7, in inner cylinder 172
Equipped with horizontal plate 176 is provided in cavity and 172 cavity of inner cylinder, the internal cavities of inner cylinder 172 are divided by plate 176
Upper plenum 175 and lower cavity 178 are provided with the third through-hole 177 of connection upper plenum 175 and lower cavity 178 on plate 176, even
Bar 174 is threaded onto third through-hole 177, and multiple third through-holes 177 can be specifically offered on plate 176, wherein in plate 176
Portion offers the third through-hole 177 being relatively large in diameter and passes through for connecting rod 174, and it is smaller which is also provided with diameter
Third through-hole 177.Sealing ring 173 is arranged at the top of connecting rod 174,173 bottom of sealing ring leads to the third for being coated with connecting rod 174
Hole 177 is closed, and the top edge of sealing ring 173 is overlapped in the top side wall of inner cylinder 172, and 174 lower part of connecting rod is arranged elastic
Part 179 (such as spring), the spring element 179 are located in lower cavity 178.
Connecting rod 174 is set as I-shaped structure in the present embodiment, and sealing ring 173 is set in below 174 top of connecting rod, and close
The side wall of seal 173 upwardly extends the truncated cone-shaped structure for surrounding and being open be gradually increased from bottom to top, the top setting of sealing ring 173
There is the edge part circumferentially extended horizontally outward, which is just overlapped in the circumferential side wall of inner cylinder 172, and by upper plenum
175 closings.Spring element 179 is located between 174 bottom of connecting rod and lower cavity 178.Connecting rod 174 uses solid buoyancy in the present embodiment
Material is made, the connecting rod 174 when 120 memory dilutional hyponatremia of cavity of resorption in foundation pit, when draining pump 150 is idle, in muddy water
It is moved upwards by buoyancy, the top side wall edge of inner cylinder 172 is moved away from sealing ring 173, so that muddy water is able to enter
The epicoele 110 of foundation pit, to play the role of certain separating and filtering, because solid particle is statically placed in 120 bottom of cavity of resorption.
The outside of inner cylinder 172 is additionally provided with outer cylindrical body 171 in the present embodiment, and outer cylindrical body 171 surround and is set to inner cylinder
Except 172 and bottom is connected with 172 bottom of inner cylinder, is provided with connection screw thread on the outer wall of outer cylindrical body 171, outer cylindrical body 171 with
Partition 160 is by being threadedly engaged connection.I.e. the mounting hole at 160 center of partition is threaded hole, and collection water control valve 170 passes through outer cylindrical body
171 are cooperatively connected with partition 160, convenient for installing collection water control valve 170, and can prevent from causing inner cylinder 172 adding
Compressive strain.On the one hand the foundation pit support device of the present embodiment reminds user to drain, on the other hand may be used by collecting water control valve 170
With voluntarily separating and filtering silt, entire foundation pit support device is reasonable in design, easy to use, and helps to protect environment, real
It is strong with property.
Embodiment 4
A kind of foundation pit method of construction of the present embodiment, substantially same above-described embodiment, further, the present embodiment step f
Used in bed course, including template 300, as shown in figure 8, the template 300 includes passing sequentially through the cope plate for pouring and being connected
Layer 310, middle template layer 320 and lower template layer 330, middle template layer 320 is integrally formed and upper surface and the following table of middle template layer 320
The extended segment for extending outwardly and being spaced apart is respectively equipped on face so that the upper surface of middle template layer 320 and cope plate layer 310 it
Between, between the lower surface of middle template layer 320 and lower template layer 330 all have the spatia 340 surrounded by extended segment.
The upper and lower surfaces of template 300 are provided with waterproof layer, and the spatia in template 300 in the present embodiment
340 include wide arc gap chamber assembly and small―gap suture chamber assembly, and wide arc gap chamber assembly is made of several wide arc gap chambers, and small―gap suture chamber is total
It is formed at by several small―gap suture chambers, wide arc gap chamber assembly and small―gap suture chamber assembly are alternately arranged.Specifically, wide arc gap chamber assembly
Upper and lower gap chamber 340 in alternating expression arrange, i.e., in 320 surface of template layer extended segment wide arc gap chamber assembly region be up and down
Alternate intervals distribution, the extended segment on middle 320 surface of template layer is that formula symmetrical above and below is spaced apart in small―gap suture chamber assembly region.
As shown in figure 8, the present embodiment template 300 uses three-layer composite structure, and middle template layer 320 and cope plate layer 310
Several cross grid interstitial structures are formed between lower template layer 330, pass through the cross grid structure of middle template layer 320
It is connected with each other with cope plate layer 310 and lower template layer 330, so that 300 tensile strength of entire template is high, anti-bending strength is high, is not easy
Deformation；And it is affected by temperature that variable quantity is small, and shrinking percentage of expanding with heat and contract with cold is low；Water-resistance is good, even if verified be completely sunk in the water
More days, it will not deform or rot because of dampness.
Embodiment 5
A kind of foundation pit method of construction of the present embodiment, substantially same above-described embodiment, further, the present embodiment step f
Used in bed course manufacture system, as shown in Fig. 9, Figure 10, Figure 11, including the fixed mechanism 400 for fixed form 300,
Fixed mechanism 400 includes main body 410, guide post 440, drive shaft 450 and pressing plate 430, offers in main body 410 and draws for placing
The longitudinal hole 411 of guide post 440 and transverse holes 412 for placing drive shaft 450, longitudinal hole 411 and the perpendicular friendship of transverse holes 412
Fork；440 lower part of guide post offers the column inner via hole 441 passed through for drive shaft 450, and the diameter of column inner via hole 441 is greater than driving
The diameter of axis 450, the interior lower surface of column inner via hole 441 are lower lozenges 442, cut and are formed on the lower surface of drive shaft 450
There is cooperation inclined-plane 451 compatible with the lower lozenges 442；The sky formed before 440 bottom of guide post and 411 bottom of longitudinal hole
It is intracavitary to be provided with telescopic resilience part 460 (such as spring)；Pressing plate 430 is set to 440 top of guide post, and template 300 is equipped with multiple
For the mounting hole of mechanism for installing 400, template 300 is set on guide post 440 by mounting hole, and is located at pressing plate 430
Lower section.
Fixed mechanism 400 further includes the guide sleeves 420 of elasticity in the present embodiment, and guide sleeves 420 are set on guide post 440
And 420 bottom of guide sleeves, in main body 410, lower surface and 420 upper surface of guide sleeves of template 300 fit, guide sleeves
420 help to increase the service life of fixed mechanism 400.
In the present embodiment as shown in figure 11, the cooperation inclined-plane 451 of the lower lozenges 442 of column inner via hole 441 and drive shaft 450
Be cooperation fitting, as shown in orientation in Figure 11, drive shaft 450 can move left and right in transverse direction, and drive shaft 450 be located at match
It closes and is additionally provided with limited post 452 in front of the right end on inclined-plane 451, when control drive shaft 450 moves right, cooperation inclined-plane 451 is gradually
It squeezes to the right, by the opposite sliding on cooperation inclined-plane 451 and lower lozenges 442, moves downward, stretch to squeeze guide post 440
Contracting elastic component 460 is extruded, and squeezes pressing plate 430 to template 300 and guide sleeves 420 downwards, to reinforce cope plate layer
310, the connection of middle template layer 320 and lower template layer 330, conversely, control 450 counter motion of drive shaft, by telescopic resilience part
460 and guide sleeves 420 elastic force, guide post 440 moves upwards so that template 300 and fixed mechanism 400 separate, to will fix
Mechanism 400 takes apart from template 300, improves working efficiency to large extent, and it is convenient to operate, time saving and energy saving.
Fixed mechanism 400 further includes taper knob 470 in the present embodiment, and taper knob 470 is set in the freedom of drive shaft 450
End, preferably carries out push-and-pull stroke to drive shaft 450 convenient for operator.The present embodiment fixed mechanism 400 is pouring template 300
Consolidation process is carried out when building and facilitates installing and dismounting, facilitates the service performance for enhancing template 300.
Embodiment 6
A kind of foundation pit method of construction of the present embodiment, substantially same above-described embodiment, further, the present embodiment step f
Used in bed course manufacture system further include the survey flattening mechanism 500 for being set to 300 upper surface of template, such as Fig. 8, Figure 12 and Figure 13
Shown, surveying flattening mechanism 500 includes platform 510, longitudinal rod 540 and pedestal 560, and platform 510 is to be set to 300 upper surface of template
Slab construction, 540 bottom end of longitudinal rod and platform 510 are rotatablely connected, and 540 top of longitudinal rod and pedestal 560 are connected, longitudinal rod 540
On be also rotatably connected to the shutter 550 of symmetric geometry, the tie point of shutter 550 and longitudinal rod 540 is located at shutter
On 550 central axes locating for center.And pedestal 560 is symmetric in the top two sides of longitudinal rod 540, i.e. longitudinal rod 540
In the medium position of pedestal 560.Pedestal 560 and platform 510 are long strip shape structure in the present embodiment, and pedestal 560 can be with
Active balance is carried out, so that longitudinal rod 540 and shutter 550 are real under rotation connection when platform 510 is under heeling condition
Existing autobalance, still keeps original state vertically and horizontally respectively.Between platform 510 and longitudinal rod 540, longitudinal rod 540 and
It is rotatably assorted connection between shutter 550 by pin shaft or shaft.
510 two sides of platform are respectively arranged with left connecting rod 520 and right connecting rod 530, Zuo Lian positioned at 550 lower section of shutter
Front rod 521 and rear connecting rod 523 of the extension bar 520 including 550 front and rear sides of shutter that are placed in, as shown in figure 12, preceding company
The top of extension bar 521 and rear connecting rod 523 respectively corresponds issuing side and the receiving end that interlocking has photosensitive sensor 522, right connection
Bar 530 is identical with the quantity and structure of left connecting rod 520, and right connecting rod 530 and left connecting rod 520 are in shutter 550
Axis is line of symmetry bilateral symmetry；The issuing side of photosensitive sensor 522 and receiving end are towards shutter 550, at platform 510
In the state of horizontal plane, photosensitive sensor 522 is located at the basal surface position of shutter 550 and the reception of photosensitive sensor 522
End is blocked and cannot receive optical signal；Surveying flattening mechanism 500 further includes control circuit, photosensitive sensor 522 and the control circuit phase
Even, and in control circuit it is equipped with buzzer, control circuit is also connected with light emitting source, and light emitting source in insufficient light for making
With.
Shutter 550 can be set to various shapes form in the present embodiment, as long as keeping its satisfaction horizontal in platform 510
Under state, the photosensitive sensor 522 of two sides is blocked, it, can be to unilateral photosensitive sensor when platform 510 tilts
522 are blocked, and as shown in figure 13, shutter 550 may be configured as semicircle, and the two sides of the bottom of shutter 550 are symmetrical
It is provided with and blocks lug 551, block lug 551 as semicircle, block the position that 551 position of lug just corresponds to photosensitive sensor 522
It sets.When specifically used, as shown in orientation in Fig. 2, by platform 510 fit in template 300 surface place, when platform 510 to the left
When inclination, i.e., when the low right side in 510 left side of platform is high, the plate that is blocked is lifted on the photosensitive sensor 522 in the right connecting rod 530 of right edge
550 block, and the receiving end of photosensitive sensor 522 can not receive optical signal, the photosensitive sensor in the left connecting rod 520 in left side
522 move down and are not blocked, and the receiving end of photosensitive sensor 522 can then receive optical signal, and control circuit controls buzzing at this time
Device alarm, reminds staff's out-of-flatness herein；Conversely, the i.e. low left side in 510 right side of platform is high when platform 510 is tilted to the right
When, the lift plate 550 that is blocked blocks on the photosensitive sensor 522 in the left connecting rod 520 of left side, the reception of photosensitive sensor 522
End can not receive optical signal, and the photosensitive sensor 522 in the right connecting rod 530 on right side, which moves down, not to be blocked, photosensitive sensor 522
Receiving end can then receive optical signal, at this time control circuit control buzzer warning, remind staff's out-of-flatness herein；
When the rotation of platform 510 is to when being in horizontal plane, then the receiving end of the photosensitive sensor 522 of the photosensitive sensor 522 and the right on the left side
The plate 550 that is blocked, which blocks, can not receive optical signal, and the buzzer of control circuit control at this time stops buzzing, and platform 510 keeps water
Flat state.
The present embodiment by survey flattening mechanism 500 can effectively 300 surface of detection template flatness, meet foundation pit bed course pair
In the requirement of planar smoothness, product quality is ensured.
Embodiment 7
A kind of foundation pit method of construction of the present embodiment, substantially same above-described embodiment, further, the present embodiment step f
Used in bed course manufacture system further include detection unit 600 for 300 aridity of detection template, as shown in figure 14, should
Detection unit 600 includes two sound wedges 610, and two sound wedges 610 are separately positioned on 300 upper and lower surfaces of template, sound wedge 610
Surface is formed with inclined-plane, respectively corresponds on the inclined-plane of two sound wedges 610 and is provided with ultrasonic transmitter 620 and ultrasonic receiver
630.Sound wedge 610 is made of plastics or metal material.
When specifically used, ultrasonic transmitter 620 emit ultrasonic wave by sound wedge 610 enter template 300, according to this how
That law, the sound wave originated are longitudinal wave, shear wave and longitudinal wave occur on 300 interface of template, shear wave is only made to enter liquid, and will be indulged
Wave all reflects away, and ultrasonic wave enters after liquid and becomes longitudinal wave, is ultrasound by template 300, sound wedge 610 after passing through liquid
Receiver receives 630, so that judge templet 300 is poured or its internal wet degree after rainwater impregnates.
The present embodiment understands the wettability in template 300 by detection unit 600, prevents long-time rainwater immersion or internal
Do not parch and caused by unnecessary loss；Entire manufacturing system structure design is rationally, easy to use, and facilitates protection ring
Border, practicability are stronger.
Schematically the present invention and embodiments thereof are described above, description is not limiting, institute in attached drawing
What is shown is also one of embodiments of the present invention, and actual structure is not limited to this.So if the common skill of this field
Art personnel are enlightened by it, without departing from the spirit of the invention, are not inventively designed and the technical solution
Similar frame mode and embodiment, are within the scope of protection of the invention.
Claims (10)
1. a kind of foundation pit method of construction, it is characterised in that: the following steps are included:
A, it determines construction location, guide pile is set in the surrounding for needing to construct, and install guide bracket between guide pile；
B, by excavating so that the first one-step forming of foundation pit, and is arranged protective device in the crater wall of foundation pit；
C, by ponding extraction discharge inside foundation pit, suspension device is set in foundation pit；
D, casing is buried in foundation pit, and gets stake holes by the way of recycling drilling construction, and logical to residual mud in stake holes
Pumping slurry mode is crossed to clean out；
E, support column is set in stake holes, the fixed support column of pump truck casting concrete；
F, bed course is produced using bed course manufacture system, bed course is placed in foundation pit, and bed course is connected with support column.
2. a kind of foundation pit method of construction according to claim 1, it is characterised in that: the suspension device in step c includes setting
The multiple sheet piles (100) being sequentially connected being placed in foundation pit, and pass through fixed cell (200) phase between adjacent sheet pile (100)
Even, the bottom of sheet pile (100) is provided with drainage hole (121), is provided with partition (160) in sheet pile (100), and partition (160) is by plate
The space that stake (100) surrounds is divided into epicoele (110) and cavity of resorption (120), and is provided with collection water control valve in the middle part of partition (160)
(170), draining pump (150) one end is connected by pipeline with cavity of resorption (120).
3. a kind of foundation pit method of construction according to claim 2, it is characterised in that: fixed cell (200) includes for card
Bracket (210), reinforcing bar (220) and the pawl (230) of tight sheet pile (100), the both ends of reinforcing bar (220) are respectively arranged with bracket
(210), bracket (210) includes pedestal (211) and the fixed part (212) for installing pawl (230), fixed part (212) setting
In on pedestal (211), being provided at least two annular grooves matched with sheet pile (100) shape on the inside of pedestal (211)
(215), the first through hole (213) for installing reinforcing bar (220), and first through hole (213) position are also provided on pedestal (211)
Between annular groove (215), pawl (230) is set on fixed part (212), and pawl (230) includes the connected setting in end
Galianconism (231) and long-armed (232), offers the open slot (233) for installing torsion elastic component (240) on long-armed (232), turn round
Power elastic component (240) one end is set on long-armed (232), and the other end is set on fixed part (212), torsion elastic component
(240) for making galianconism (231) inwardly be clamped on the end of reinforcing bar (220).
4. a kind of foundation pit method of construction according to claim 3, it is characterised in that: the two sides of pawl (230) are respectively set
Have torsion elastic component (240), and pawl (230) and torsion elastic component (240) are set to fixed part (212) by connection unit
On, which includes pin shaft (250) and split pin (251), and the second through-hole (214), pawl are offered on fixed part (212)
(230) connection through-hole is also offered on, pin shaft (250) is threaded onto fixed part (212), pawl (230) and torsion elastic component
(240) it in, and is locked by split pin (251) on fixed part (212)；Or the connection unit is matched using bolt and nut
Conjunction is fastened.
5. a kind of foundation pit method of construction according to claim 2, it is characterised in that: collection water control valve (170) includes inner prop
Body (172), connecting rod (174) and sealing ring (173) are provided with plate (176) in inner cylinder (172), and plate (176) is by inner cylinder
(172) internal cavities are divided into upper plenum (175) and lower cavity (178), and connection upper plenum (175) is provided on plate (176)
With the third through-hole (177) of lower cavity (178), connecting rod (174) is threaded onto third through-hole (177), and set at the top of connecting rod (174)
Equipped with sealing ring (173), the top edge of sealing ring (173) is overlapped in the top side wall of inner cylinder (172), under connecting rod (174)
Portion is arranged with spring element (179), which is located in lower cavity (178).
6. a kind of foundation pit method of construction according to claim 1, it is characterised in that: the bed course in step f includes template
(300), which includes passing sequentially through the cope plate layer (310), middle template layer (320) and lower template for pouring and being connected
Layer (330), middle template layer (320) are integrally formed and are respectively equipped in the upper and lower surfaces of middle template layer (320) to extension
The extended segment stretched and be spaced apart so that between the upper surface of middle template layer (320) and cope plate layer (310), middle template layer
(320) spatia (340) surrounded by extended segment is all had between lower surface and lower template layer (330).
7. a kind of foundation pit method of construction according to claim 6, it is characterised in that: the bed course manufacture system packet in step f
The fixed mechanism (400) for fixed form (300) is included, fixed mechanism (400) includes main body (410), guide post (440), drives
Moving axis (450) and pressing plate (430), main body (410) is interior to be offered the longitudinal hole (411) for placing guide post (440) and is used for
Place the transverse holes (412) of drive shaft (450), longitudinal hole (411) and transverse holes (412) perpendicular intersection；Under guide post (440)
Portion offers the column inner via hole (441) passed through for drive shaft (450), and the interior lower surface of column inner via hole (441) is lower lozenges
(442), cutting is formed with the compatible cooperation inclined-plane (451) with the lower lozenges (442) on the lower surface of drive shaft (450)；
Telescopic resilience part (460) are provided in the cavity formed before guide post (440) bottom and longitudinal hole (411) bottom；Pressing plate
(430) it is set at the top of guide post (440), template (300) is set on guide post (440) by mounting hole, and is located at pressing plate
(430) lower section.
8. a kind of foundation pit method of construction according to claim 7, it is characterised in that: fixed mechanism (400) further includes elasticity
Guide sleeves (420), guide sleeves (420) are set on guide post (440) and guide sleeves (420) bottom is embedded at main body (410)
Interior, lower surface and guide sleeves (420) upper surface of template (300) fit.
9. a kind of foundation pit method of construction according to claim 7, it is characterised in that: the bed course manufacture system in step f is also
Survey flattening mechanism (500) including being set to template (300) upper surface, surveying flattening mechanism (500) includes platform (510), longitudinal rod
(540) and pedestal (560), platform (510) is the slab construction for being set to template (300) upper surface, longitudinal rod (540) bottom end with
Platform (510) rotation connection, longitudinal rod (540) top and pedestal (560) are connected, and are also rotatably connected on longitudinal rod (540) pair
Claim the shutter (550) of geometry, shutter (550) and the tie point of longitudinal rod (540) are located at shutter (550) center institute
On the central axes at place, platform (510) two sides are respectively arranged with left connecting rod (520) He Youlian below shutter (550)
Extension bar (530), front rod (521) and rear connecting rod of the left connecting rod (520) including shutter (550) front and rear sides that are placed in
(523), the top of front rod (521) and rear connecting rod (523) is respectively arranged with the issuing side of photosensitive sensor (522) and connects
Receiving end, the issuing side of photosensitive sensor (522) and receiving end are in horizontal plane in platform (510) towards shutter (550)
Under state, photosensitive sensor (522) is located at the basal surface position of shutter (550) and the receiving end quilt of photosensitive sensor (522)
Optical signal cannot be received by blocking；Right connecting rod (530) is identical with the quantity of left connecting rod (520) and structure, and right connecting rod
(530) and left connecting rod (520) is using the central axes of shutter (550) as line of symmetry bilateral symmetry.
10. according to a kind of described in any item foundation pit methods of construction of claim 7-9, it is characterised in that: the bed course system in step f
The system of making further includes the detection unit (600) for detection template (300) aridity, which includes two sound
Wedge (610), two sound wedges (610) are separately positioned on template (300) upper and lower surfaces, and sound wedge (610) surface is formed with tiltedly
Face respectively corresponds on the inclined-plane of two sound wedges (610) and is provided with ultrasonic transmitter (620) and ultrasonic receiver (630).
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