阅读说明：本技术 一种重型设备厂房地基基础不均匀沉降的加固处理方法 (Reinforcement treatment method for uneven settlement of foundation of heavy equipment factory building ) 是由 王旭 其他发明人请求不公开姓名 于 2019-09-26 设计创作，主要内容包括：本发明公开了一种重型设备厂房地基基础不均匀沉降的加固处理方法,属于地基加固技术领域,一种重型设备厂房地基基础不均匀沉降的加固处理方法,可以对沉降处进行分点处理,通过千斤顶将重型设备倾斜与一个沉降处发生分离,然后通过开挖反填通道,从下方对地基沉降处进行加固,进而有效避免了移动重型设备的操作,降低对于沉降处地基进行加固的难度,在沉降处下方通过硬质软土填充的加固土层和拱形撑桥以及沉降处表面的内表加固层和混凝土层,可以达到对沉降处地基进行加固的效果,并重复上述操作对多处沉降的地基依次进行加固即可,同时可以提高沉降处下方地基的强度,有效降低加固后的沉降处地基再次发生沉降的情况。(The invention discloses a reinforcement treatment method for uneven settlement of a foundation of a heavy equipment factory building, belonging to the technical field of foundation reinforcement, which can carry out point division treatment on a settlement part, separate the inclination of heavy equipment from one settlement part through a jack, then reinforce the settlement part of the foundation from the lower part by excavating a back filling channel, further effectively avoid the operation of moving the heavy equipment, reduce the difficulty of reinforcing the foundation of the settlement part, achieve the effect of reinforcing the foundation of the settlement part by a reinforcing soil layer filled with hard soft soil, an arched supporting bridge, an inner reinforcing layer on the surface of the settlement part and a concrete layer below the settlement part, and repeat the operation to sequentially reinforce the multiple settled foundations, and simultaneously improve the strength of the foundation below the settlement part, effectively reduce the condition that the settlement place ground after the reinforcement subsides again.)

1. The reinforcing treatment method for uneven settlement of the foundation of the heavy equipment factory building is characterized by comprising the following steps of: the method comprises the following steps:

s1, firstly, supporting the heavy equipment at the unsettled part of the foundation by a plurality of jacks at the bottom of the heavy equipment;

s2, adjusting the length of the jack, and increasing the length of the jack close to the side of the settlement to enable the heavy equipment to incline to a certain degree so that the heavy equipment on the side is not in contact with the ground;

s3, excavating a reverse filling channel from a part far away from the settlement part to the direction right below the settlement part;

s4, when the reverse filling channel is dug below a settlement position, excavating layer by layer from bottom to top and filling hard soft soil to form a reinforcing soil layer, and embedding an arch-shaped support bridge in the uppermost layer;

s5, reversely filling the reverse filling channel, removing concrete and cement layers at the settlement position below the heavy equipment, filling hard soft soil into the part and compacting to form an inner surface reinforcing layer, and pouring a concrete layer on the upper surface of the part and keeping the part flush with the surrounding foundation;

and S6, repeating S2-S5 to reinforce other foundation subsidence positions below the heavy machinery.

2. The method for reinforcing uneven settlement of the foundation of the heavy equipment factory building according to claim 1, wherein the method comprises the following steps: at least four jacks are arranged in the S1, and the supporting force of the jacks on the heavy equipment is not less than 2/3 of the gravity of the heavy equipment.

3. The method for reinforcing uneven settlement of the foundation of the heavy equipment factory building according to claim 1, wherein the method comprises the following steps: the depth of the back-filling channel is 1.5-3m, and the distance from the starting end of the back-filling channel to the subsidence is about 7-10 m.

4. The method for reinforcing uneven settlement of the foundation of the heavy equipment factory building according to claim 1, wherein the method comprises the following steps: and the step of filling hard soft soil and compacting in the S5 is repeated for 2-3 times.

5. The method for reinforcing uneven settlement of the foundation of the heavy equipment factory building according to claim 1, wherein the method comprises the following steps: the specific operation steps of S4 are as follows:

s41, firstly, filling the reverse channel dug to the lower part of the settlement position with hard soft soil;

s42, continuously excavating upwards, filling with hard soft soil again, and repeating the step for 3-4 times;

s43, after the reinforced soil layer is formed, continuously excavating upwards, and placing the arch-shaped supporting bridge above the reinforced soil layer;

and S44, filling hard soft soil in the arched supporting bridge to enable the arched supporting bridge to be in a compact state.

6. The method for reinforcing uneven settlement of the foundation of the heavy equipment factory building according to claim 5, wherein the method comprises the following steps: the hard soft soil is formed by compressing the same soil below a foundation, and the compression ratio is 1: 2-3.

7. The method for reinforcing uneven settlement of the foundation of the heavy equipment factory building according to claim 5, wherein the method comprises the following steps: when a reinforcing soil layer and an arched supporting bridge are filled by digging in the step S42, an operation channel is reserved on one side of the reinforcing soil layer close to the starting end of the back filling channel, the operation channel is communicated with the back filling channel, and the operation channel is filled through hard soft soil after the step S44.

8. The method for reinforcing uneven settlement of the foundation of the heavy equipment factory building according to claim 1, wherein the method comprises the following steps: the arch-shaped supporting bridge comprises two vertical side supporting plates (11), two multilayer elastic arc-shaped supporting plates (13) are fixedly connected between the vertical side supporting plates (11), and two multilayer transverse sandwich plates (12) are fixedly connected to the upper ends of the vertical side supporting plates (11).

9. The method for reinforcing uneven settlement of the foundation of the heavy equipment factory building according to claim 8, wherein the method comprises the following steps: the elastic arc-shaped supporting plates (13) are of a net-shaped structure, and the distance between every two elastic arc-shaped supporting plates (13) is 10-15 cm.

10. The method for reinforcing uneven settlement of the foundation of the heavy equipment factory building according to claim 8, wherein the method comprises the following steps: every two-layer fixed the packing has a plurality of evenly distributed's fixed point reinforcing ball (2) between horizontal sandwich panel (12), fixed point reinforcing ball (2) become reinforcing filler (22) including elasticity parcel layer (21) and the power of filling in elasticity parcel layer (21), power becomes reinforcing filler (22) and adopts non-Newtonian fluid to make.

Technical Field

The invention relates to the technical field of foundation reinforcement, in particular to a reinforcement treatment method for uneven settlement of a foundation of a heavy equipment factory building.

Background

The foundation refers to the soil or rock mass of the supporting foundation under the building. Soil layers as building foundations are divided into rocks, gravel soil, sandy soil, silt soil, cohesive soil and artificial filling soil. The foundation includes a natural foundation and an artificial foundation (composite foundation). Natural foundations are layers of natural soil that do not require human reinforcement. The artificial foundation needs reinforcement treatment by people, and a stone chip cushion layer, a sand cushion layer, mixed lime-soil backfill, tamping and the like are common.

From the point of view of field construction, the foundation can be divided into natural foundation and artificial foundation. The foundation is the bearing rock-soil bearing layer under the foundation. The natural foundation can meet the requirement of bearing all loads of the foundation in a natural state, a natural soil layer reinforced by people is not needed, the engineering cost is saved, and the foundation does not need manual treatment. The natural foundation is a natural soil layer which can be directly laid without treating the foundation. There are four major categories: rock, gravel soil, sandy soil and cohesive soil. Artificial foundation: artificially treated or improved foundation. When the geological condition of the soil layer is better and the bearing capacity is stronger, a natural foundation can be adopted; under the condition of poor geological conditions, such as sloping fields, sandy fields or silt geology, or when the texture of the soil layer is good but the upper load is too large, in order to ensure that the foundation has enough bearing capacity, the foundation is artificially reinforced, namely the artificial foundation.

Heavy equipment causes very big oppression to the ground of this factory building very easily because the problem of its dead weight, causes the settlement of ground, and especially heavy equipment and the settlement of the contact point part on ground are especially serious, lead to forming the inhomogeneity that the ground subsides, and because heavy equipment's dead weight problem, it is very difficult to remove equally, after taking place the ground and subsiding, when carrying out the ground reinforcement, the difficulty is very big.

Disclosure of Invention

1. Technical problem to be solved

Aiming at the problems in the prior art, the invention aims to provide a reinforcement treatment method for uneven settlement of a foundation of a heavy equipment factory building, which can carry out point-by-point treatment on a settlement position, separate the heavy equipment from one settlement position by inclining a jack, then reinforcing the settlement position of the foundation from the lower part by excavating a back filling channel, thereby effectively avoiding the operation of moving heavy equipment, reducing the difficulty of reinforcing the foundation at the settlement position, a reinforcing soil layer and an arched supporting bridge filled by hard soft soil are arranged below the settlement position, and an inner reinforcing layer and a concrete layer are arranged on the surface of the settlement position, can achieve the effect of reinforcing the foundation at the settlement position, and the operation is repeated to sequentially reinforce the foundation at a plurality of settlement positions, meanwhile, the strength of the foundation below the settlement position can be improved, and the condition that the reinforced foundation at the settlement position is settled again is effectively reduced.

2. Technical scheme

In order to solve the above problems, the present invention adopts the following technical solutions.

A reinforcement treatment method for uneven settlement of heavy equipment factory building foundation comprises the following steps:

s1, firstly, supporting the heavy equipment at the unsettled part of the foundation by a plurality of jacks at the bottom of the heavy equipment;

s2, adjusting the length of the jack, and increasing the length of the jack close to the side of the settlement to enable the heavy equipment to incline to a certain degree so that the heavy equipment on the side is not in contact with the ground;

s3, excavating a reverse filling channel from a part far away from the settlement part to the direction right below the settlement part;

s4, when the reverse filling channel is dug below a settlement position, excavating layer by layer from bottom to top and filling hard soft soil to form a reinforcing soil layer, and embedding an arch-shaped support bridge in the uppermost layer;

s5, reversely filling the reverse filling channel, removing concrete and cement layers at the settlement position below the heavy equipment, filling hard soft soil into the part and compacting to form an inner surface reinforcing layer, and pouring a concrete layer on the upper surface of the part and keeping the part flush with the surrounding foundation;

and S6, repeating S2-S5 to reinforce other foundation subsidence positions below the heavy machinery.

Can carry out the branch point to the settlement department and handle, through the jack with heavy equipment slope and a settlement department emergence separation, then fill the passageway through excavation, consolidate the foundation settlement department from the below, and then effectively avoided the operation of removing heavy equipment, reduce and carry out the reinforced degree of difficulty to the settlement department ground, the reinforcement soil layer and the arch that fill through hard soft soil below the settlement department props the bridge and the interior surface back up layer and the concrete layer on settlement department surface, can reach and carry out the reinforced effect to the settlement department ground, and repeat the above-mentioned operation and consolidate in proper order to the foundation that subsides in many places can, can improve the intensity of settlement department below ground simultaneously, effectively reduce the settlement department ground after the reinforcement and take place the condition of subsiding once more.

Further, the jack has four at least in S1 for the jack is higher to heavy equipment ' S support stability, thereby reduces heavy equipment and takes place crooked condition when being made, improves the security, and the jack is not less than 2/3 of heavy equipment self gravity to heavy equipment ' S holding power, effectively bears and decomposes the direct effort to ground of heavy equipment, thereby make when excavating the backfill passageway, the ground settlement department is difficult for taking place to collapse because of the great pressure of heavy machinery, effectively improve the interior constructor ' S of backfill passageway security.

Furthermore, the depth of the back-filling channel is 1.5-3m, the construction cost of foundation reinforcement is easily increased due to too deep depth, the foundation collapse is easily caused due to too shallow depth, certain threat exists on the safety of workers who excavate the back-filling channel, and the distance between the starting end of the back-filling channel and the subsidence position is 7-10m, so that the starting end is far away from the subsidence position, and the condition that the subsidence position is settled again due to excavation of the back-filling channel is effectively avoided.

Further, the step of filling the hard soft soil and compacting in the step S5 is repeated for 2 to 3 times, so that the density and the compactness of the obtained inner surface reinforcing layer can reach higher levels, and the phenomenon that the foundation is settled again is effectively avoided.

Further, the specific operation steps of S4 are as follows:

s41, firstly, filling the reverse channel dug to the lower part of the settlement position with hard soft soil;

s42, continuously excavating upwards, filling with hard soft soil again, and repeating the step for 3-4 times;

s43, after the reinforced soil layer is formed, continuously excavating upwards, and placing the arch-shaped supporting bridge above the reinforced soil layer;

and S44, filling hard soft soil in the arched supporting bridge to enable the arched supporting bridge to be in a compact state.

Furthermore, the hard soft soil is formed by compressing the same soil below the foundation, compared with hard fillers such as filling stones, the hard soft soil is not easy to cause large compression force on the peripheral soil or the foundation, the generation of gaps caused by the fact that the peripheral soil or the foundation is compressed due to the fact that the hardness of the fillers is too large is effectively avoided, further, the reoccurrence of foundation settlement is effectively avoided, the compression ratio is 1:2-3, the obtained reinforced soil layer is good in compactness, the reinforced soil layer can play a stronger supporting role below the settlement position, and the secondary settlement of the reinforced foundation is effectively prevented.

Further, when digging in S42 and strengthening the packing of soil layer and arch brace bridge, it has the operation passageway to consolidate the soil layer and be close to one side reservation that the passageway initiating terminal is filled to the contrary, the operation passageway communicates with each other with the passageway of filling conversely, and the operation passageway fills through the stereoplasm weak soil after S44 step, and the operation passageway is convenient for constructor to strengthening the packing of soil layer and arch brace bridge, improves the convenience.

Furthermore, the arch-shaped supporting bridge comprises two vertical side supporting plates, wherein a plurality of layers of elastic arc supporting plates are fixedly connected between the vertical side supporting plates, and a plurality of layers of transverse sandwich plates are fixedly connected at the upper ends of the vertical side supporting plates.

Furthermore, the elastic arc-shaped supporting plates are of a net-shaped structure, and the distance between every two elastic arc-shaped supporting plates is 10-15cm, so that after the hard soft soil is filled in the S44, the arch-shaped supporting bridge can be better combined with the hard soft soil, and can be integrated with the hard soft soil, thereby better providing supporting force and enhancing the strength of the foundation at the settlement position.

Further, every two-layer fixed packing has a plurality of evenly distributed's fixed point to consolidate the ball between the horizontal sandwich panel, fixed point consolidates the ball and becomes the reinforcement filler including elasticity parcel layer and the power of filling in elasticity parcel intraformational, the power becomes to consolidate the filler and adopts non-Newtonian fluid to make, and non-Newtonian fluid can become hard the thickening after the atress, can improve the intensity that the arch propped the bridge, further improves the intensity of subsiding the back ground of subsiding, and then effectively avoids the condition that this department ground subsides once more.

3. Advantageous effects

Compared with the prior art, the invention has the advantages that:

(1) this scheme can carry out the branch point to the settlement department and handle, through the jack with heavy equipment slope and a settlement department emergence separation, then fill the passageway through excavation, consolidate the foundation settlement department from the below, and then effectively avoided the operation of removing heavy equipment, reduce and carry out the reinforced degree of difficulty to the settlement department ground, the reinforcement soil layer and the arch that fill through hard soft soil below the settlement department props the bridge and the inner surface layer and the concrete layer on settlement department surface, can reach and prop up the effect of consolidating to the settlement department ground, and repeat the above-mentioned operation and consolidate in proper order to the foundation that subsides in many places can, can improve the intensity of settlement department below ground simultaneously, effectively reduce the settlement department ground after the reinforcement and take place the condition of subsiding once more.

(2) The jacks in the S1 are at least four, so that the support stability of the jacks for the heavy equipment is higher, the deflection of the heavy equipment is reduced when the heavy equipment is manufactured, the safety is improved, the support force of the jacks for the heavy equipment is not less than 2/3 of the gravity of the heavy equipment, the acting force of the heavy equipment directly acting on the ground is effectively borne and decomposed, the foundation settlement position is not prone to collapse due to the large pressure of the heavy equipment when the backfill channel is excavated, and the safety of constructors in the backfill channel is effectively improved.

(3) The depth of the reverse filling channel is 1.5-3m, the construction cost of foundation reinforcement is easily increased due to too deep depth, the foundation collapse is easily caused due to too shallow depth, certain threat exists on the safety of workers who excavate the reverse filling channel, the distance between the starting end of the reverse filling channel and the subsidence position is 7-10m, the starting end is far away from the subsidence position, and the condition that the subsidence position is settled again due to excavation of the reverse filling channel is effectively avoided.

(4) And S5, the steps of filling hard soft soil and compacting are repeated for 2-3 times, so that the density and the compactness of the obtained inner surface reinforcing layer can reach higher levels, and the phenomenon that the foundation is settled again is effectively avoided.

(5) The hard soft soil is formed by compressing the same soil below the foundation, compared with hard fillers such as filling stones and the like, the hard soft soil is not easy to cause large compression force on the peripheral soil or the foundation, the generation of gaps caused by the fact that the peripheral soil or the foundation is compressed due to the fact that the hardness of the fillers is too large is effectively avoided, further, the reoccurrence of foundation settlement is effectively avoided, the compression ratio is 1:2-3, the obtained reinforced soil layer is good in compactness, the reinforced soil layer can play a stronger supporting role below the settlement position, and the foundation after reinforcement is effectively prevented from subsiding again.

(6) When a reinforcing soil layer and an arched supporting bridge are filled by excavating in S42, an operation channel is reserved on one side of the reinforcing soil layer close to the starting end of the reverse filling channel and is communicated with the reverse filling channel, the operation channel is filled through hard soft soil after the step S44, and the operation channel is convenient for constructors to fill the reinforcing soil layer and the arched supporting bridge, so that convenience is improved.

(7) The arch-shaped supporting bridge comprises two vertical side supporting plates, wherein a plurality of layers of elastic arc supporting plates are fixedly connected between the two vertical side supporting plates, and a plurality of layers of transverse sandwich plates are fixedly connected at the upper ends of the two vertical side supporting plates.

(8) The elastic arc-shaped supporting plates are of a net-shaped structure, and the distance between every two elastic arc-shaped supporting plates is 10-15cm, so that the arch-shaped supporting bridges can be better combined with the hard soft soil after the hard soft soil is filled in S44, the arch-shaped supporting bridges can be integrated with the hard soft soil, supporting force is better provided, and the strength of a foundation at a settlement position is enhanced.

(9) Fixed packing has a plurality of evenly distributed's fixed point to consolidate the ball between per two-layer horizontal sandwich panel, and fixed point is consolidated the ball and is become the reinforcement filler including elasticity parcel layer and the power of filling in elasticity parcel intraformational, and power becomes to consolidate the filler and adopts non-Newtonian fluid to make, and non-Newtonian fluid can become the sclerosis thickening after the atress, can improve the intensity that the arch propped the bridge, further improves the intensity of subsiding the back foundation that subsides, and then effectively avoids the condition that this foundation subsides once more.

Drawings

FIG. 1 is a principal flow diagram of the present invention;

FIG. 2 is a schematic view of the main structure of the foundation settlement of the present invention;

FIG. 3 is a schematic view of the structure of the present invention during the filling of a consolidated soil layer;

FIG. 4 is a perspective view of the arched bridge of the present invention;

FIG. 5 is a schematic front view of the arched bridge of the present invention;

FIG. 6 is a schematic view of a half-section of the fixed point reinforcing ball of the present invention.

The reference numbers in the figures illustrate:

11 vertical side supporting plates, 12 horizontal sandwich plates, 13 elastic arc supporting plates, 2 fixed point reinforcing balls, 21 elastic wrapping layers and 22 force-variable reinforcing fillers.

Detailed Description

The drawings in the embodiments of the invention will be combined; the technical scheme in the embodiment of the invention is clearly and completely described; obviously; the described embodiments are only some of the embodiments of the invention; but not all embodiments, are based on the embodiments of the invention; all other embodiments obtained by a person skilled in the art without making any inventive step; all fall within the scope of protection of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.