CN110593246A - Foundation leveling system for storage terrace settlement control and construction method thereof - Google Patents
Foundation leveling system for storage terrace settlement control and construction method thereof Download PDFInfo
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- CN110593246A CN110593246A CN201910992261.9A CN201910992261A CN110593246A CN 110593246 A CN110593246 A CN 110593246A CN 201910992261 A CN201910992261 A CN 201910992261A CN 110593246 A CN110593246 A CN 110593246A
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- 238000003860 storage Methods 0.000 title claims abstract description 34
- 238000010276 construction Methods 0.000 title claims abstract description 31
- 210000003205 muscle Anatomy 0.000 claims abstract description 10
- 230000002787 reinforcement Effects 0.000 claims abstract description 7
- 239000002689 soil Substances 0.000 claims description 46
- 238000000926 separation method Methods 0.000 claims description 25
- 238000005056 compaction Methods 0.000 claims description 15
- 238000002156 mixing Methods 0.000 claims description 13
- 229920000728 polyester Polymers 0.000 claims description 12
- 239000004746 geotextile Substances 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 10
- 239000004568 cement Substances 0.000 claims description 9
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 9
- 230000008901 benefit Effects 0.000 abstract description 4
- 239000010410 layer Substances 0.000 description 46
- 239000004575 stone Substances 0.000 description 12
- 239000004927 clay Substances 0.000 description 8
- 230000005540 biological transmission Effects 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
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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
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/02—Improving by compacting
- E02D3/08—Improving by compacting by inserting stones or lost bodies, e.g. compaction piles
Abstract
The invention relates to the technical field of foundation treatment and foundation reinforcement, in particular to a foundation leveling system for storage terrace settlement control and a construction method thereof, which are characterized in that: the system includes that a plurality of structure pile foundations, a plurality of leveling pile foundations, flexible ground median and level add the muscle body and constitute, wherein the structure pile foundation with the even array of a plurality of leveling pile foundations is arranged, the flexible ground median will a plurality of structure pile foundations with a plurality of leveling pile foundations are one-to-one corresponding connection respectively and are cut apart into a plurality of bins with the ground, the level adds the setting of muscle body and is in the upper portion of flexible ground median, the level adds the structural layer that the muscle body supported the storage terrace. The invention has the advantages that: the foundation leveling system is suitable for large-area ground load, particularly for floor settlement control of buildings such as plants, workshops and warehouses, and has the advantages of short construction period, controllable construction quality, low construction cost, good anti-seismic effect, high bearing capacity, small uneven settlement and the like.
Description
Technical Field
The invention relates to the technical field of foundation treatment and foundation reinforcement, in particular to a foundation leveling system for storage terrace settlement control and a construction method thereof.
Background
With the advent of the 21 st century, the popularization of the internet, the rapid development of the network information era, the rapid development of the electronic commerce and logistics warehousing industries, and the rapid development of the electronic commerce logistics, the demand for logistics land is also increased rapidly. In view of the fact that the logistics storage bases are all single-layer or double-layer steel structure plants, the occupied area is large, the land resources in the current Yangtze triangle area are short, the land taking cost is high, and if mature land is purchased (namely, the soil quality condition is good, the upper building can be directly built), the land cost is relatively high, so that the current logistics real estate company usually fixes the location of the logistics base in a suburb area or a coastal area with poor soil quality, soft soil with a certain thickness exists in the suburb area, the engineering property is relatively poor, and the construction requirement of high-rise buildings in the later period of the field is difficult to directly meet. The land cost is lower, the use requirement of the warehouse logistics warehouse is lower than that of the conventional building, and the warehouse logistics warehouse can meet the requirement after a series of foundation treatment, so that the warehouse logistics warehouse is paid attention again and is favored by logistics real estate investment construction units which develop rapidly in recent years.
The main facilities of the logistics storage base are logistics warehouses, loading and unloading platforms, ramps, roads, greening, office buildings and the like. The main area is a logistics warehouse, the structural form of the warehouse is generally a single-layer or double-layer steel structure, the arrangement form of the warehouse is characterized by large column net size, large activity load, overlong structure and the like, the area of the ordinary warehouse is about 1-3 ten thousand square meters, the height of a column is generally 7m, the height of an indoor ceiling is generally not less than 6m, the ground bearing capacity of the warehouse is specifically calculated according to the type of a load-bearing article or the stacking height, the bearing capacity of a terrace of the indoor structure is generally about 3T/square meter, and the indoor terrace of the warehouse needs to be newly filled up to be 1.2-1.3m higher than the outdoor ground in order to facilitate transportation, loading and unloading of goods and the like.
The main risk of soft foundation engineering of storage projects lies in that the foundation after the engineering completion generates larger overall settlement and serious uneven settlement under the action of large-area use load, and particularly terrace cracking caused by uneven settlement under the use load after the engineering is a key factor influencing later normal use of the site, so that the foundation treatment of the site aims at improving the effective rigidity and uniformity of a supporting layer soil body so as to prevent uneven settlement of the foundation after the engineering.
Aiming at geological conditions of storage type soft foundations in coastal areas, the foundation treatment method which can be adopted is mainly as follows according to the soft soil treatment depth of 15m and the treatment area of 3 ten thousand square meters:
disclosure of Invention
The invention aims to provide a foundation leveling system for storage terrace settlement control and a construction method thereof according to the defects of the prior art, and the foundation leveling system is used for realizing the purpose that the transmission path of the terrace load is formed by a surface (a structural terrace), a line (a flexible foundation separation band), a point (a leveling pile foundation) and a supporting layer through the combined action of the structural pile foundation, the leveling pile foundation, the flexible foundation separation band and a horizontal reinforcing body, so that the rigidity of a terrace cushion layer is further improved, the load transmission is more uniform, and the integral settlement and the non-uniform settlement of the field are finally smaller.
The purpose of the invention is realized by the following technical scheme:
the utility model provides a ground leveling system for storage terrace settlement control, sets up in storage terrace below, its characterized in that: the system includes that a plurality of structure pile foundations, a plurality of leveling pile foundations, flexible ground median and level add the muscle body and constitute, wherein the structure pile foundation with the even array of a plurality of leveling pile foundations is arranged, the flexible ground median will a plurality of structure pile foundations with a plurality of leveling pile foundations are one-to-one corresponding connection respectively and are cut apart into a plurality of bins with the ground, the level adds the setting of muscle body and is in the upper portion of flexible ground median, the level adds the structural layer that the muscle body supported the storage terrace.
The uppermost layer of the foundation is provided with a backfill hard shell layer, the pile top of the leveling pile foundation is flush with the surface of the backfill hard shell layer, and the flexible foundation separation belt is arranged in the backfill hard shell layer.
The flexible ground median comprises rubble and reinforced filter screen, it sets up to add the reinforced filter screen the pile bolck of leveling pile foundation and its direction of arranging satisfy in connecting a plurality of structure pile foundations with requirement between a plurality of leveling pile foundations, the rubble by it wraps up to add the reinforced filter screen.
Preferably, the crushed stone is wrapped into a rectangular strip shape by a reinforced filter screen, and the section dimension is 1.5m multiplied by 0.5m (width multiplied by height). The filled gravel particles have certain requirements, the maximum diameter of the gravel particles is not more than 30cm, the mud content is less than 20%, the permeability coefficient is high, the gravel particles are convenient for underground water on the shallow surface in the ground to be timely discharged out of the ground, the gravel particles have a good anti-seismic effect, the uniformity is good, and the terrace cracking phenomenon is not easy to occur.
Preferably, the reinforced filter screen has a certain tensile strength index to form a net bag effect, wherein the tensile modulus of the reinforced filter screen at 2% elongation is more than or equal to 700kN/m, and the CBR bursting strength is more than or equal to 6 kN. When the reinforced filter screens are lapped, the lapping width is not less than 40cm, and the reinforced filter screens are tightly sewn by polyester threads, so that the reinforced filter screens can wrap the broken stones.
The leveling pile foundation is a flexible pile or a stiff pile; the flexible pile is one of vibroflotation gravel pile, immersed tube gravel pile, lime-soil compaction pile, strength nature pile comprises equal pile length soil cement mixing pile and precast pile, and soil cement mixing pile and precast pile's the pile core coincidence.
Preferably, the diameter of the cement-soil mixing pile is 650mm, the diameter of the prefabricated pipe pile is 300-400mm, the cross section of the pile is large, the bearing capacity is high, and the phenomenon that the pile body stabs the terrace of the upper structure in the later period can be avoided
The leveling pile foundation is arranged below the storage terrace in a quincunx or rectangular mode.
Preferably, the pile spacing of the leveling pile foundation is 6-8m, the control area of a single pile is 36-64m2, the pile length should penetrate through a sludge layer and enter a bearing stratum with the depth not less than 1m, the pile top should be 0.5m lower than the ground surface, and the later excavation arrangement of the flexible broken stone separation strip is facilitated. When the stiff pile is adopted, the mixing amount of cement of the cement-soil mixing pile is preferably 10-15%, the precast tubular pile is preferably inserted in 4-6h after the cement-soil mixing pile is formed, the allowable deviation of the positions of the cement-soil mixing pile and the precast tubular pile is +/-10 mm, and the allowable deviation of the verticality is 0.5%.
The flexible foundation separation belt above the leveling pile foundation is transversely and longitudinally connected to form a rectangle or a rhombus, the intersection point of the flexible foundation separation belt is coincided with the pile center of the leveling pile foundation, and the two ends of the flexible foundation separation belt are connected with the foundation of the structural pile foundation.
The flexible ground division strip that links to each other vertically and horizontally forms the string bag, cuts apart into the terrace one by one independent less bin relatively, and the transfer path of terrace load is by face (structure terrace) → line (flexible ground division strip) → point (leveling pile foundation) → holding layer for the rigidity of terrace bed course further improves, makes the transmission of load more even, and final whole settlement volume in place and uneven settlement volume are less.
The horizontal reinforcement body comprises high-toughness polyester woven geotextile, compacted backfill soil and a steel-plastic geogrid, the high-toughness polyester woven geotextile is in contact with the top surface of the flexible foundation separation strip and the foundation between the top surface of the flexible foundation separation strip and the flexible foundation separation strip, the compacted backfill soil is positioned on the high-toughness polyester woven geotextile, and the steel-plastic geogrid is laid on the upper part of the compacted backfill soil.
Preferably, the tensile strength of the steel-plastic geogrid is more than or equal to 50kN/m, the elongation at break is less than or equal to 3 percent, and the lap joint is not less than 30 cm. The compaction coefficient of the backfill soil is not less than 0.93. The tensile strength of the high-toughness polyester woven geotextile is more than or equal to 50kN/m, and the breaking elongation is less than or equal to 12 percent.
A construction method related to the foundation leveling system for storage terrace settlement control is characterized in that: the construction method comprises the following steps: according to the elevation condition of a site, a hard shell layer with a certain thickness is formed on the foundation by backfilling the soil body on the foundation by a layered backfilling and tamping method; vertically driving a structural pile foundation and a leveling pile foundation into a foundation; arranging flexible foundation separation belts longitudinally and transversely on the pile top to divide the foundation into a plurality of bins; and finally, backfilling the horizontal reinforcing body, wherein the structural layer of the storage terrace is positioned on the upper surface of the horizontal reinforcing body.
Preferably, the layered backfill tamping method is characterized in that in order to avoid forming rubber soil by dynamic compaction, the dynamic compaction energy level is preferably 2000-3000 kN.m, the dynamic compaction energy level is light firstly and heavy secondly, and the energy is added step by step, and meanwhile, according to site conditions, a pipe well precipitation measure is adopted inside and outside a site, so that the excess pore water pressure is eliminated, and the soil consolidation is accelerated.
The invention has the advantages that:
1) a hard shell layer is formed, and the bearing capacity of the surface layer is high; and (3) performing low-level dynamic compaction treatment for multiple times, so that the shallow layer is integrally reinforced (within 5 m) to form a hard shell layer, stress diffusion is performed, and uneven settlement is reduced.
2) Semi-rigid multi-point support, the branch storehouse principle, it is effectual to subtract heavy. The vertical stiff leveling pile penetrates through the whole soft soil layer and enters the bearing layer by 1m to form a semi-rigid support, and the whole soft soil layer is reinforced, so that the composite compression modulus of the soil layer is increased, and finally the post-construction settlement of the terrace is reduced; simultaneously, the flexible rubble strip of separating forms little bin with the place piecemeal, and the transmission of terrace surface load is realized by face (terrace) → line (flexible division strip) → point (strength nature leveling pile) → holding power layer, further improves the rigidity of terrace cushion layer for the transmission of load is more even, and final whole settlement volume in place is less.
3) Good damping performance and good anti-liquefaction effect. The flexible broken stone separating strip connects the structural pile foundation with the vertical stiff pile, when an earthquake happens, the broken stones in the strip can timely and fully discharge the ultra-pore water on the shallow surface in the reservoir area field, the integral stability of the reservoir area is facilitated, and the liquefaction resisting effect is good.
4) The stress coordination effect of the reinforced cushion layer enables the soil body to be more uniformly settled. Under the action of upper load, the inter-pile soil settlement can firstly generate settlement, the reinforced cushion layer generates concave deformation in the range between the piles, the tensile capacity of the reinforced material is mobilized, the film drawing effect is exerted, partial load is transmitted to the vertical leveling pile, and the effect of adjusting the pile-soil stress ratio is achieved; and can also play a role in drainage and isolation.
5) The total construction period is short, the whole project can be put into production early, and the economic benefit is obvious; the method can be combined with the construction period of the structural pile foundation, namely, the low-level dynamic compaction is carried out after the low-level dynamic compaction is finished, and the total construction period of a project is greatly shortened.
6) The process construction is simple, the operability is strong, and the application range is wide; the method is suitable for the settlement control of the common soft soil foundation.
Drawings
FIG. 1 is a structural diagram of a vertical stiff leveling pile in the invention;
FIG. 2 is a top view of a quincunx arrangement of the leveling system of the present invention;
FIG. 3 is a top view of a rectangular arrangement of the leveling system of the present invention;
FIG. 4 is a schematic view of the construction process of the flexible ground separation strip of the present invention;
FIG. 5 is a soil layer cross-sectional view of the single reservoir area leveling pile in one direction after construction;
FIG. 6 is a cross-sectional view of a soil layer in another direction after the leveling pile in the single reservoir area is constructed according to the invention;
FIG. 7 is a schematic view of the arrangement of horizontal reinforcement bodies in a single reservoir area according to the present invention;
FIG. 8 is a soil layer cross-sectional view in one direction of the soil layer after application of the leveling system of the present invention;
fig. 9 is a cross-sectional view of the soil layer in another direction after the leveling system of the present invention is applied.
Detailed Description
The features of the present invention and other related features are described in further detail below by way of example in conjunction with the following drawings to facilitate understanding by those skilled in the art:
as shown in fig. 1-9, the labels 1-16 are respectively shown as: the concrete pile foundation comprises a cement soil stirring pile 1, a prefabricated pipe pile 2, broken stones 3, a reinforced filter screen 4, high-toughness polyester woven geotextile and steel-plastic geogrid 5, a structural pile foundation 6, a leveling pile foundation 7, a flexible foundation separation belt 8, a newly backfilled clay layer 9, a silt powder clay layer 10, a powder clay layer 11, a holding layer 12, a foundation 13, a structural pile 14, a terrace structure layer 15 and a horizontal reinforcement body 16.
Example (b): as shown in fig. 1 to 5, the foundation leveling system for storage floor settlement control in this embodiment is mainly applied to the case of a small logistics storage area of 48 × 87m, wherein a single span of steel structure is 12 × 22m, wherein the structural pile foundations 6 are distributed in the storage area where there are steel columns, the foundation 13 is in the form of an independent foundation, and the foundation 13 is supported on the structural pile 14 below the foundation. The foundation condition is from top to bottom: 1-2m of miscellaneous fill, 15m of silty clay 10, clay, silty clay 11 and a holding layer 12.
Firstly, due to the process requirements of a warehouse logistics base, a reservoir area needs to be refilled with a new backfill clay layer 9 of about 1-2m, the foundation leveling system in the embodiment can be applied after the filling is completed, firstly, the whole reservoir area is subjected to low-level dynamic compaction construction for 2-3 times, and a hard shell layer with a certain thickness is processed on the whole field, namely, the new backfill clay layer 9 forms the hard shell layer with a certain thickness. The energy level of dynamic compaction is from small to large, 1000 kN.m-1500 kN.m-2000 kN.m, and finally, 800kN.m full compaction leveling treatment is adopted. And during dynamic compaction, the processing boundary is 3-5m of the boundary of each side of the reservoir area.
As shown in fig. 2, after the treatment of a single reservoir area is completed, the surface layer of the site has a certain bearing capacity, which can satisfy the construction conditions of the pile foundation, and the next construction of the vertical stiff leveling pile serving as the leveling pile foundation 7 is performed, wherein the structural pile foundation 6 can be constructed synchronously with the vertical stiff leveling pile serving as the leveling pile foundation 7, and the arrangement can be according to the quincunx shown in fig. 2 or the rectangular shown in fig. 3 according to different forms of the site and the soil layer conditions. As shown in figure 1, the vertical stiff leveling pile is formed by combining a cement-soil mixing pile 1 and a precast tubular pile 2. When the cement soil mixing pile 1 is constructed, the site needs to be transported to the precast tubular pile 2 in advance, the precast tubular pile 2 needs to be inserted within 4-6 hours after the cement soil mixing pile 1 is constructed, the center of the precast tubular pile needs to be located at the center of the cement soil mixing pile, the pile top is 0.5m lower than the ground surface, the verticality of the precast tubular pile is not more than 0.5%, and therefore the vertical stiff leveling pile is guaranteed. Meanwhile, the structural pile foundation under the independent foundation of the reservoir area is also constructed, and the construction such as excavation of the line-incoming foundation can be realized after the construction is finished.
As shown in fig. 4, 5 and 6, after the construction of the vertical stiff leveling pile in a single block area is completed for 5-7 days, the construction of the flexible broken stone dividing strip 8 in the site can be embedded, lime powder is firstly used for positioning and paying off, an excavator is used for excavating according to the designed depth and route strictly, the center of the groove needs to be located at the center of the vertical stiff leveling pile (leveling pile foundation 7), the section size of the groove is 1.5m × 0.5m, a reinforced filter screen 4 with certain strength is laid along the groove after the excavation, the width of the reinforced filter screen 4 is about 4.5m, and after the graded broken stones 3 in the groove are filled back, the broken stones 3 are wrapped in a reverse wrapping mode to form the flexible broken stone dividing strip 8. The upper reinforced filter screen 4 is sewn by a bag sewing machine, and the lap joint width is at least 40 cm.
The foundation is divided into a plurality of bins with relatively small areas through the flexible broken stone separating strips 8, the rigidity of the terrace cushion layer is further improved by the surface (terrace) -line (flexible broken stone separating strips 8) -point (stiff leveling pile) -holding layer in the process of transmitting the terrace surface load, the load is transmitted more uniformly, and finally the whole settling volume of the field is small.
As shown in fig. 7, 8 and 9, after the construction of the flexible foundation separation strips 8 connected in parallel and horizontally in the reservoir area is completed, a layer of horizontal reinforcement 16, namely high-toughness polyester woven geotextile, compacted backfill soil and steel-plastic geogrid, is laid in the whole field. The high-toughness polyester woven geotextile is contacted with the top surface of the flexible foundation separation belt and the foundation between the flexible foundation separation belt and the flexible foundation separation belt, backfill soil of 30cm is paved on the upper surface after paving is finished, compaction is carried out by adopting a road roller, and a layer of steel-plastic geogrid is paved after compaction, namely the high-toughness polyester woven geotextile and the steel-plastic geogrid are paved as shown in figure 5. After laying, the application of this storage terrace settlement control leveling system is accomplished promptly, can hand over in the construction unit and carry out the construction of structure terrace, and the terrace structural layer 15 of storage terrace arranges in the top that the level adds muscle body 16 to the realization is to the stable stay of storage terrace.
Although the conception and the embodiments of the present invention have been described in detail with reference to the drawings, those skilled in the art will recognize that various changes and modifications can be made therein without departing from the scope of the appended claims.
Claims (8)
1. The utility model provides a ground leveling system for storage terrace settlement control, sets up in storage terrace below, its characterized in that: the system includes that a plurality of structure pile foundations, a plurality of leveling pile foundations, flexible ground median and level add the muscle body and constitute, wherein the structure pile foundation with the even array of a plurality of leveling pile foundations is arranged, the flexible ground median will a plurality of structure pile foundations with a plurality of leveling pile foundations are one-to-one corresponding connection respectively and are cut apart into a plurality of bins with the ground, the level adds the setting of muscle body and is in the upper portion of flexible ground median, the level adds the structural layer that the muscle body supported the storage terrace.
2. The foundation leveling system for storage terrace settlement control according to claim 1, characterized in that: the uppermost layer of the foundation is provided with a backfill hard shell layer, the pile top of the leveling pile foundation is flush with the surface of the backfill hard shell layer, and the flexible foundation separation belt is arranged in the backfill hard shell layer.
3. The foundation leveling system for storage terrace settlement control according to claim 2, characterized in that: the flexible ground median comprises rubble and reinforced filter screen, it sets up to add the reinforced filter screen the pile bolck of leveling pile foundation and its direction of arranging satisfy in connecting a plurality of structure pile foundations with requirement between a plurality of leveling pile foundations, the rubble by it wraps up to add the reinforced filter screen.
4. A foundation levelling system for storage floor settlement control as claimed in claim 1, 2 or 3 wherein: the leveling pile foundation is a flexible pile or a stiff pile; the flexible pile is one of vibroflotation gravel pile, immersed tube gravel pile, lime-soil compaction pile, strength nature pile comprises equal pile length soil cement mixing pile and precast pile, and soil cement mixing pile and precast pile's the pile core coincidence.
5. The foundation leveling system for storage terrace settlement control according to claim 1, characterized in that: the leveling pile foundation is arranged below the storage terrace in a quincunx or rectangular mode.
6. The foundation leveling system for storage terrace settlement control according to claim 5, characterized in that: the flexible foundation separation belt above the leveling pile foundation is transversely and longitudinally connected to form a rectangle or a rhombus, the intersection point of the flexible foundation separation belt is coincided with the pile center of the leveling pile foundation, and the two ends of the flexible foundation separation belt are connected with the foundation of the structural pile foundation.
7. The foundation leveling system for storage terrace settlement control according to claim 1, characterized in that: the horizontal reinforcement body comprises high-toughness polyester woven geotextile, compacted backfill soil and a steel-plastic geogrid, the high-toughness polyester woven geotextile is in contact with the top surface of the flexible foundation separation strip and the foundation between the top surface of the flexible foundation separation strip and the flexible foundation separation strip, the compacted backfill soil is positioned on the high-toughness polyester woven geotextile, and the steel-plastic geogrid is laid on the upper part of the compacted backfill soil.
8. A construction method involving the foundation leveling system for storage floor settlement control of claims 1-7, characterized in that: the construction method comprises the following steps: according to the elevation condition of a site, a hard shell layer with a certain thickness is formed on the foundation by backfilling the soil body on the foundation by a layered backfilling and tamping method; vertically driving a structural pile foundation and a leveling pile foundation into a foundation; arranging flexible foundation separation belts longitudinally and transversely on the pile top to divide the foundation into a plurality of bins; and finally, backfilling the horizontal reinforcing body, wherein the structural layer of the storage terrace is positioned on the upper surface of the horizontal reinforcing body.
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| CN211113580U (en) * | 2019-10-18 | 2020-07-28 | 上海申元岩土工程有限公司 | A ground leveling system for storage terrace settlement control |
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2019
- 2019-10-18 CN CN201910992261.9A patent/CN110593246A/en active Pending
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|---|---|---|---|---|
| GB0128204D0 (en) * | 1997-08-20 | 2002-01-16 | Roxbury Ltd | Ground treatment |
| US20060067794A1 (en) * | 2004-09-24 | 2006-03-30 | Leroy Mitchell | Method and apparatus for raising, leveling, and supporting displaced foundation allowing for readjustment after installation |
| CN103321204A (en) * | 2013-05-24 | 2013-09-25 | 同济大学 | Treating method applicable to deep soft soil foundation of warehouse building floors |
| CN103276753A (en) * | 2013-06-06 | 2013-09-04 | 中国中化股份有限公司 | Scattered pile and strong net foundation leveling system for steeled storage tank foundations |
| CN108411886A (en) * | 2018-05-11 | 2018-08-17 | 中交物流规划设计研究院有限公司 | A kind of storage terrace settlement Control system and its construction method |
| CN211113580U (en) * | 2019-10-18 | 2020-07-28 | 上海申元岩土工程有限公司 | A ground leveling system for storage terrace settlement control |
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