CN108086302A - A kind of transverse direction based on underground wall body construction is whole to pour wall width subsidence process - Google Patents
A kind of transverse direction based on underground wall body construction is whole to pour wall width subsidence process Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 16
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/20—Bulkheads or similar walls made of prefabricated parts and concrete, including reinforced concrete, in situ
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0004—Synthetics
- E02D2300/0018—Cement used as binder
- E02D2300/0021—Mortar
Abstract
It the present invention relates to underground construction technology field, discloses that a kind of transverse direction based on underground wall body construction is whole to pour wall width subsidence process, comprises the following steps：A, several loop wheel machines are installed positioned at the top of groove on the ground, the top of groove sets support plate, support plate and the lower end of the hoist cable on every loop wheel machine are fixed, the bottom surface of groove is equipped with several soil pressure cases, the end face center installation water distributor of support plate, the downside of water distributor is equipped with several equally distributed apopores, and support plate is equipped with the through hole to connect one to one with apopore, several vertical water inlet pipes are connected on water distributor；B, support plate top surface concrete it is laterally whole pour wall width, the form removal after the intensity of wall width reaches strength of mould stripping；C, the upper end connection high-pressure water pipe of every water inlet pipe, controls the hoist cable of all loop wheel machines synchronously to decline, until the top surface decline of wall width is concordant as ground.Underground wall body quality made from the technique is high, ne-leakage, removes secondary construction from, greatly reduces construction cost, effectively shortens the construction period.
Description
Technical field
The present invention relates to underground construction technology fields more particularly to a kind of transverse direction based on underground wall body construction whole to pour wall width
Subsidence process.
Background technology
With the development of society, urban construction is maked rapid progress, underground engineering is more and more, such as basement in high rise building,
The underground constructions engineering such as underground gallery, multi-layer underground garage, subway tunnel, these engineerings are all Construction of Deep Foundation, are applied in underground
In order to ensure the safety and stability of construction safety and surrounding enviroment, it is necessary to carry out foundation pit enclosure during work.Foundation pit enclosure is basic
Step is：Underground fluting, slurrying, wall processed in slot, wall technique processed is very more, such as campshed wall, cast-in-place diaphram wall, half prefabricated
Half cast-in-place subterranean wall.
Campshed wall belongs to temporary supporting structure, formation protecting wall after the completion of the construction of campshed wall, secondary construction in protecting wall
Main body wall is prepared, after underground main body wall is constructed, the effect of temporary supporting structure terminates, and campshed wall becomes permanent discarded
Object significantly increases engineering cost, extends the duration, and occupies certain land area；Campshed wall longitudinal seam is very more, holds
Easily lead to infiltration.
Cast-in-place diaphram wall is put into steel reinforcement cage in the mud in groove, in mud insertion pour pipe, existed by high pressure
Trench bottom pours, and pours pipe after pipe often pours once and moves up, whole face wall is completed until pouring, made of this kind of construction method
The wall not only temporary support structures as foundation pit, but also be used as the permanent main body wall of basement, considerably reduce project cost, but
There is also many drawbacks for the construction method of diaphram wall：(1) height is required to mud, mud conditioning is of high cost and mud is easily made
Into pollution；(2) walls concrete quality is uneven, unstable, and wall own dimensions, flat shape, vertical position are difficult to control
System, there are leakage problems for wall width junction；(3) because underwater grouting, after steel reinforcement cage is put into mud, mud is stained on reinforcing bar,
Bond stress reduces, and wall body quality can reduce, and easily cause the random infiltration of metope, and metope is coarse, and some areas reinforcing bar is direct
It exposes, and there is also folder mud phenomenon, it is necessary to set water-resistant liner wall；(4) built-in fitting is accurately positioned difficult, and underground connects
Continuous wall can only be as a part for agent structure wall.
Half prefabricated half cast-in-place subterranean wall is arranged in prefabricated wall is Pork-pieces in groove, between wall and wall
There are axial clearance, then casting concrete in gap again, by concrete by adjacent two pieces of wall connectings；This kind of wall construction
Method is between campshed wall and cast-in-place diaphram wall, and there are the above problems.
The content of the invention
The present invention provides a kind of horizontal stroke based on underground wall body construction to solve the above-mentioned problems in the prior art
Wall width subsidence process is poured to whole, this kind of technique can ensure that transverse direction is whole on the ground and pour the smooth sinking of wall, final underground obtained
Wall quality is high, precision is high, barrier performance is good, degree of safety is high, and without additionally set inwall, entire engineering cost is low,
Short time limit.
To achieve these goals, the present invention adopts the following technical scheme that：
A kind of transverse direction based on underground wall body construction is whole to pour wall width subsidence process, comprises the following steps：A, position on the ground
Several loop wheel machines are installed in the top of groove, the top of groove sets support plate, support plate and the lower end of the hoist cable on every loop wheel machine
Fixed, the bottom surface of support plate is equipped with several soil pressure cases, the end face center installation water distributor of support plate, the downside of water distributor
Equipped with several equally distributed apopores, support plate is equipped with the through hole to connect one to one with apopore, is connected on water distributor
Several vertical water inlet pipes；B, support plate top surface concrete it is laterally whole pour wall width, treating the intensity of wall width, to reach form removal strong
Form removal after degree；C, the upper end connection high-pressure water pipe of every water inlet pipe, controls the hoist cable of all loop wheel machines synchronously to decline, until wall width
Top surface declines concordant as ground；Wall width is during decline, when the pressure value of some soil pressure case is more than setting value, with
The corresponding water inlet pipe injection high pressure water of the soil pressure case.
Preferably, before step a, in several only pile sinking of bottom portion of groove implantation, only the top surface of pile sinking is coplanar, stops pile sinking
The distance that top surface is higher by bottom portion of groove is 4cm-6cm.
Preferably, in step a, support plate is steel plate, and the bottom surface of support plate is equipped with several cavitys, soil pressure sensing
Device is mounted in cavity.
Preferably, in step b, steel reinforcement cage is installed in support plate top surface, template-setup is in the both sides of steel reinforcement cage, at two pieces
The top surface of wall width is higher by with concreting wall width, the upper end of steel reinforcement cage between template, hoist cable, water inlet pipe are embedded in wall width,
The form removal after wall width reaches strength of mould stripping.
Preferably, the top surface in wall width is embedded with sealing rod, in the half embedment wall width of sealing rod, sealing rod it is another
Half exposes outside wall width.
Preferably, before step a, the supporting beam escape groove of several grooves connections is outputed by groover on the ground；
In stepb, pour several supporting beams while pouring wall width with concrete is whole between the inner wall of wall width, the position of supporting beam with
Supporting beam escape groove corresponds.
Therefore, the invention has the advantages that：
(1) wall width is prepared on the ground, and the construction of wall width is easily manufactured, and work progress is quality controllable, and overall structure is stable, matter
Amount is high.
(2) bottom portion of groove is sunk using pile sinking, wall width is stopped after manufacturing on the ground, wall width own dimensions, flat shape, vertical position
It is very high to put precision.
(3) wall width is laterally whole pours, and integral strength, rigidity are high, after compressive property.
(4) wall width is prepared on the ground, avoids the casting concrete in mud, and requirement when wall width sinks to mud is shown
Writing reduces, and compared with the prior art, reduces the deployment cost of mud and mud subsequent treatment cost.
(5) supporting beam can be freely set as needed between the inner wall of same wall width, particularly can bottom of foundation ditch with
Under pre-set supporting beam, foundation pit in bottom of foundation ditch forms support system (and bases such as current campshed wall, ground-connecting-wall after digging
Supporting beam can not be pre-set during the protection works construction of hole, after can only being dug in foundation pit and then continuing lower digging a certain distance
Supporting beam could be set), so as to enhance the compressive property of wall width, engineering safety degree significantly improves.
Description of the drawings
Fig. 1 is the top view of further groove of the present invention.
Fig. 2 is cross-sectional view at A-A in Fig. 1.
Fig. 3 prepares schematic diagram for wall width.
Fig. 4 is after first piece of wall width sinks, prepares second piece of wall width schematic diagram.
Fig. 5 is the top view of wall width.
Fig. 6 is the side connection diagram of adjacent wall width.
Fig. 7 is supporting beam and the connection diagram of wall width.
In figure：Mud guide groove 1 leads wall 2, groove 3, mud 30, only supporting beam escape groove 4, pile sinking 5, loop wheel machine 6, hoist cable
60th, support plate 7, cavity 70, through hole 71, soil pressure case 8, water distributor 9, water inlet pipe 10, steel reinforcement cage 11, template 12, wall 13,
Sealing rod 14, supporting beam 15, blowoff chamber 16.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and detailed description：
A kind of underground wall body construction method as depicted in figs. 1 and 2, comprises the following steps：With groover along groove tracks
Mark opens up the mud guide groove 1 that depth is H1, width is D, and wall 2 is led with concreting, will lead wall mounted on mud guide groove
Both sides；It is opened up by groover in the bottom of mud guide groove apart from the groove 3 that ground predetermined depth is H, mud guide groove
Depth H 1 and the ratio between predetermined depth H be 0.07-0.15, in the present embodiment by taking the Back Word connected in star shown in Fig. 1 as an example；Fluting
While machine outputs groove, the supporting beam escape groove 4 connected with groove inner wall with recess width direction is also outputed；In groove
Prepare the mud 30 that density is ρ, ρ 1.4g/cm3-1.7g/cm3；In the bottom of groove 3, supporting beam escape groove 4, implantation is several only
Pile sinking 5, only the top surface of pile sinking is coplanar, and only the top surface of pile sinking is higher by the distance of bottom portion of groove as 4cm-6cm, then carries out laterally whole
It pours wall width and wall width sinks.
As shown in figure 3, laterally the whole wall width subsidence process that pours comprises the following steps：A, pacify on the ground positioned at the top of groove
Several loop wheel machines 6 are filled, the top of groove sets support plate 7, and support plate and the lower end of the hoist cable 60 on every loop wheel machine are fixed, support plate
For steel plate, the bottom surface of support plate is equipped with several cavitys 70, and soil pressure case 8 is mounted in cavity, the end face center peace of support plate
Water distributor 9 is filled, the downside of water distributor is equipped with several equally distributed apopores, and support plate is equipped with to be corresponded with apopore
The through hole 71 of connection connects several vertical water inlet pipes 10 on water distributor；B, steel reinforcement cage 11, template 12 are installed in support plate top surface
The both sides of steel reinforcement cage are arranged on, with concreting wall 13 between two pieces of templates, the upper end of steel reinforcement cage is higher by the top of wall width
Face, hoist cable, water inlet pipe are embedded in wall width, and the form removal after wall width reaches strength of mould stripping is embedded with only in the top surface of wall width
Water bar 14, the half of sealing rod are embedded in wall width, and the other half of sealing rod exposes outside wall width, while pouring wall width with concrete is whole
Several supporting beams 15 are poured between the inner wall of wall width, position and the supporting beam escape groove of supporting beam correspond；C, every into
The upper end connection high-pressure water pipe of water pipe, controls the hoist cable of all loop wheel machines synchronously to decline, until the top surface of wall width drops to and ground
Concordantly, wall width is corresponding with the soil pressure case when the pressure value of some soil pressure case is more than setting value during decline
Water inlet pipe injection high pressure water, until after the pressure value of the soil pressure case is less than setting value, corresponding high-pressure water pipe stops note
Water；In order to reduce wall width penetration resistance, blowoff chamber 16 can be opened up in the both sides of groove, be discharged convenient for mud, it is ensured that first piece
The smooth sinking of wall.
As shown in Figure 4, Figure 5 and Figure 6, then laterally whole second piece of wall is poured in the top surface of first piece of wall width in the same way
Width is docked between first piece of wall width and second piece of wall width by steel reinforcement cage, and seam crossing is sealed by sealing rod 14, then by second
Block wall width drop to it is concordant with ground, as shown in fig. 7, foundation depth is H2, when first piece of wall width sinks, supporting beam 15 with
Wall width together to sink, and so on, realize the 3rd piece of wall width, the transverse direction of the 4th piece of wall width is whole pours, sinks；Treat that the first wall width sinks
To after bottom portion of groove, hoist cable is separated with loop wheel machine, and the cement mortar of high pressure is injected into water inlet pipe, and cement mortar is arranged at water distributor
Go out, so as to which mud between bottom portion of groove and first piece of wall width be squeezed out, strong cement base is formed in the bottom of first piece of wall width
Bottom, water inlet pipe is interior to be full of cement mortar.So far, the construction of underground wall body is completed, is then dug again in the space inside underground wall body
Foundation pit is dug, after foundation pit is dug, bottom of foundation ditch support system is formed by several supporting beams at bottom of foundation ditch, without continuing lower digging
Supporting beam is additionally set afterwards.
In this construction method, wall width is manufactured on the ground, often prepares one piece of wall width, is sunk once, between adjacent two pieces of wall width
Stable connection is reliable, ne-leakage, and wall is quality controllable, finally integrally descends wall body structure what underground was formed；Entire engineering
Work progress safety, the underground wall body quality formed after construction is high, intensity is high, precision is high, securely and reliably；This kind of underground wall body collection
Protecting wall, inwall and one eliminate secondary construction, greatly shorten the construction period, reduce cost.In the present embodiment, groove
Demarcate depth H, depth H 1, the width D of mud guide groove, depending on these are all in accordance with Specific construction requirement；According to actual needs may be used
Can be linear type underground wall body, arc underground wall body, square shape very easily to build underground wall body of different shapes
Lower wall, stud underground wall body etc..
Claims (6)
1. a kind of transverse direction based on underground wall body construction is whole to pour wall width subsidence process, it is characterized in that, comprise the following steps：
A, several loop wheel machines are installed positioned at the top of groove on the ground, the top of groove sets support plate, and support plate is hung with every
The lower end of hoist cable on machine is fixed, and the bottom surface of support plate is equipped with several soil pressure cases, the end face center installation water distribution of support plate
Pipe, the downside of water distributor are equipped with several equally distributed apopores, and support plate is equipped with what is connected one to one with apopore
Through hole connects several vertical water inlet pipes on water distributor；
B, support plate top surface concrete it is laterally whole pour wall width, the form removal after the intensity of wall width reaches strength of mould stripping；
C, the upper end connection high-pressure water pipe of every water inlet pipe, controls the hoist cable of all loop wheel machines synchronously to decline, until the top surface of wall width
Decline concordant as ground；Wall width is during decline, when the pressure value of some soil pressure case is more than setting value, with the soil
The corresponding water inlet pipe injection high pressure water of pressure sensor.
2. a kind of transverse direction based on underground wall body construction according to claim 1 is whole to pour wall width subsidence process, it is characterized in that,
Before step a, in several only pile sinking of bottom portion of groove implantation, only the top surface of pile sinking is coplanar, and only the top surface of pile sinking is higher by bottom portion of groove
Distance be 4cm-6cm.
3. a kind of transverse direction based on underground wall body construction according to claim 1 is whole to pour wall width subsidence process, it is characterized in that,
In step a, support plate is steel plate, and the bottom surface of support plate is equipped with several cavitys, and the soil pressure case is mounted in cavity.
4. a kind of transverse direction based on underground wall body construction according to claim 1 is whole to pour wall width subsidence process, it is characterized in that,
In step b, steel reinforcement cage is installed in support plate top surface, template-setup uses concrete in the both sides of steel reinforcement cage between two pieces of templates
Walling width is poured, the upper end of steel reinforcement cage is higher by the top surface of wall width, and hoist cable, water inlet pipe are embedded in wall width, and it is strong to treat that wall width reaches form removal
Form removal after degree.
5. a kind of transverse direction based on underground wall body construction according to claim 4 is whole to pour wall width subsidence process, it is characterized in that,
Sealing rod is embedded in the top surface of wall width, the half of sealing rod is embedded in wall width, and the other half of sealing rod exposes outside wall width.
6. a kind of transverse direction based on underground wall body construction according to claim 1 is whole to pour wall width subsidence process, it is characterized in that,
Before step a, the supporting beam escape groove of several grooves connections is outputed by groover on the ground；In stepb, concrete is used
Whole to pour several supporting beams while pour wall width between the inner wall of wall width, the position of supporting beam and supporting beam escape groove one are a pair of
It should.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111549762A (en) * | 2020-04-24 | 2020-08-18 | 中国建筑股份有限公司 | Continuous wall collapse-preventing pouring template suitable for soft soil area and construction method |
| WO2020198897A1 (en) * | 2019-04-04 | 2020-10-08 | 问延煦 | Wall sinking construction method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2020198897A1 (en) * | 2019-04-04 | 2020-10-08 | 问延煦 | Wall sinking construction method |
| CN111549762A (en) * | 2020-04-24 | 2020-08-18 | 中国建筑股份有限公司 | Continuous wall collapse-preventing pouring template suitable for soft soil area and construction method |
| CN111549762B (en) * | 2020-04-24 | 2021-07-20 | 中国建筑股份有限公司 | Construction method of continuous wall collapse-preventing pouring template suitable for soft soil area |
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| CN108086302B (en) | 2019-06-28 |
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