CN210482285U - Soft soil foundation manual hole digging pile structure - Google Patents

Soft soil foundation manual hole digging pile structure Download PDF

Info

Publication number
CN210482285U
CN210482285U CN201920061515.0U CN201920061515U CN210482285U CN 210482285 U CN210482285 U CN 210482285U CN 201920061515 U CN201920061515 U CN 201920061515U CN 210482285 U CN210482285 U CN 210482285U
Authority
CN
China
Prior art keywords
retaining
pile
hole digging
soft soil
digging pile
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201920061515.0U
Other languages
Chinese (zh)
Inventor
姚裕春
谢毅
张耀
陈伟志
肖朝乾
吴沛沛
曾永红
袁报
刘乐韬
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Railway Eryuan Engineering Group Co Ltd CREEC
Original Assignee
China Railway Eryuan Engineering Group Co Ltd CREEC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China Railway Eryuan Engineering Group Co Ltd CREEC filed Critical China Railway Eryuan Engineering Group Co Ltd CREEC
Priority to CN201920061515.0U priority Critical patent/CN210482285U/en
Application granted granted Critical
Publication of CN210482285U publication Critical patent/CN210482285U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

A soft soil foundation manual hole digging pile structure creates favorable construction conditions and effective protective measures for the construction of soft soil foundation manual hole digging piles, improves the construction efficiency and saves the engineering cost. The hole digging pile is characterized by comprising a hole digging pile arranged in a soft soil foundation, wherein a retaining wall structure surrounding the side wall of the hole digging pile is arranged outside the hole digging pile, 1-2 drainage soil stirring piles are arranged outside the retaining wall structure in a surrounding mode, and connecting steel bars inserted into the cement soil stirring piles are arranged on the inner wall of the retaining wall structure at intervals. The cement mixing piles are arranged on the plane in a staggered mode. The retaining wall structure is formed by vertically butting retaining wall sections constructed in sequence from top to bottom, and the height of each retaining wall section is 0.5-1.0 m.

Description

Soft soil foundation manual hole digging pile structure
Technical Field
The utility model relates to geotechnical engineering, in particular to soft soil foundation manual hole digging pile structure.
Background
The soft soil layer foundation is widely available, when civil engineering is built on the foundation, if the stability and safety can not meet the requirements, measures need to be taken for reinforcement, the reinforcing pile is a common engineering measure for improving the stability of the soft soil layer foundation, and particularly when the soft soil layer is positioned on an inclined rock stratum, the reinforcing pile is often adopted for lateral constraint reinforcement, so that the stability of the soft soil layer foundation is improved.
The lateral constraint reinforced pile is commonly used by an artificial hole digging pile and a cast-in-place bored pile. The dug pile has the characteristics of large section, large stressed contact surface and large resistance, can not be directly constructed in a soft soil foundation, and needs other effective protective measures. The bored circular pile is characterized by being suitable for various foundation conditions, but due to the influence of construction machinery, the section size is usually not more than 2.5m, the pile is circular, the stressed contact area is small, the horizontal resistance provided by the pile is small, the arrangement interval is usually small, and the engineering investment is much larger than that of a square pile for digging holes.
Therefore, the provided pile structure and construction method for digging holes on the soft soil foundation have important significance, and have the characteristics of simple construction, safety, reliability, excellent economy, environmental protection and the like.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a soft soil foundation manual hole digging pile structure is provided, for the construction of soft soil foundation manual hole digging pile creates favourable construction conditions and effective safeguard measure, improve the efficiency of construction and save engineering cost.
The utility model provides an above-mentioned technical problem adopted technical scheme as follows:
the utility model discloses an artifical hole digging pile structure of soft soil foundation, including setting up the hole digging pile in the soft soil foundation, characterized by: and a retaining wall structure surrounding the side wall of the dug pile is arranged outside the dug pile, 1-2 draining soil mixing piles are arranged outside the retaining wall structure, and connecting steel bars inserted into the soil cement mixing piles are arranged on the inner wall of the retaining wall structure at intervals.
The cement mixing piles are arranged on the plane in a staggered mode.
The retaining wall structure is formed by vertically butting retaining wall sections constructed in sequence from top to bottom, and the height of each retaining wall section is 0.5-1.0 m.
The beneficial effects of the utility model are that:
firstly, constructing more than two rows of cement-soil mixing piles around a soft soil foundation hole digging pile, arranging the cement-soil mixing piles in a staggered manner to form a hole digging pile enclosure structure, constructing 2-4 cement-soil mixing piles in the center of the pile to form an excavation construction operation foundation, properly reducing the cement mixing amount of the cement-soil mixing piles in the center of the pile to bear the weight of hole digging workers and a small amount of other loads, and properly increasing the cement mixing amount of the cement-soil mixing piles around the pile to increase the stability of an excavation foundation pit;
secondly, the strength of the soft soil foundation is low, when a retaining wall structure arranged in the traditional construction process of the bored pile adopts cast-in-place formwork erection, because the friction resistance of the soft soil is very small, reinforcing steel bars and a construction template are difficult to fix, and after the concrete pouring of the retaining wall structure is finished to a certain strength, the retaining wall structure formed in the early stage is easy to slide down when the next retaining wall structure is constructed;
and thirdly, favorable construction conditions and effective protection measures are created for the construction of the manual hole digging pile of the soft soil foundation, the construction efficiency is improved, the engineering cost is saved, and the method has the characteristics of simplicity in construction, safety, reliability, good economical efficiency, environmental protection requirement meeting, contribution to popularization and the like.
Drawings
The specification includes the following three drawings:
fig. 1 is a sectional view of the manual dug pile structure for the soft soil foundation of the utility model;
fig. 2 is the utility model relates to a soft soil foundation manual hole digging pile structure's construction plane arranges the schematic diagram.
Fig. 3 is the utility model relates to a soft soil foundation manual hole digging pile structure's construction facade schematic diagram.
The component names and corresponding labels are shown in the figure: cement mixing pile 1, connecting steel bar 2, retaining wall structure 3, dug hole pile 4.
Detailed Description
The invention is further described with reference to the following figures and examples:
referring to fig. 1, the utility model discloses a manual hole digging pile structure of soft soil foundation, including setting up hole digging pile 4 in the soft soil foundation. And a retaining wall structure 3 surrounding the side wall of the dug pile 4 is arranged outside the dug pile, 1-2 draining soil mixing piles 1 are arranged outside the retaining wall structure 3, and connecting steel bars 2 inserted into the cement soil mixing piles 1 are arranged on the inner wall of the retaining wall structure 3 at intervals. Referring to fig. 3, the retaining wall structure 3 is formed by vertically butting retaining wall segments constructed in sequence from top to bottom, and the height of each retaining wall segment is 0.5-1.0 m.
Referring to fig. 2 and 3, the utility model relates to a soft soil foundation manual hole digging pile structure is under construction according to following step:
① laying ordinary soil with a certain thickness on the surface layer of the soft soil foundation, leveling the ground, and positioning the plane of the dug pile 4;
② constructing 1-2 drainage soil mixing piles 1 on the outer side of the periphery of the retaining wall structure 3 of the digging pile 4, wherein the cement soil mixing piles 1 are arranged in a staggered way;
③ constructing 2-4 cement mixing piles 1 at intervals on the inner side of the position of the retaining wall structure 3 of the bored pile 4 according to the size of the bored pile 4;
④ digging manually the pile body of the soft soil and cement mixing pile 1 inside the first section of retaining wall structure 3 of the digging pile 4;
⑤, drilling holes on the pile body of the cement soil mixing pile 1 around the retaining wall structure 3 of the bored pile 4 by adopting the drilling holes, implanting connecting steel bars 2, wherein the connecting steel bars 2 enter the pile body of the cement soil mixing pile 1 and the exposed length is not less than 20 cm;
⑥ binding the reinforcement cage of the first section of the retaining wall structure 3 and fixing with the exposed connecting reinforcement 2;
⑦ erecting the formwork to construct the concrete of the first retaining wall structure 3;
⑧ excavating a soft soil and cement mixing pile 1 pile body at the inner side of the second section of retaining wall structure 3 of the bored pile 4 after the concrete of the first section of retaining wall structure 3 reaches more than 80% of the design strength;
⑨ repeating steps ⑤ - ⑧ until all retaining wall structure 3 structures through soft soil layers are completed;
⑩ placing reinforcement cages of the bored piles 4 in the structure of the retaining wall structure 3 and pouring concrete.
Referring to fig. 1 and 2, the utility model discloses at first the soil cement mixing pile 1 more than two rows of construction all around of soft soil foundation dug hole stake 4, soil cement mixing pile 1 staggered arrangement, form 4 envelope of dug hole stake, then at 2-4 soil cement mixing pile 1 of the central construction of stake, form excavation construction operation basis, the soil cement mixing pile at stake center mixes the cement volume and suitably reduces, can with can bear the weight of the construction worker of digging hole and a small amount of other loads, the cement volume of mixing of soil cement mixing pile 1 all around suitably increases, with the stability of increase excavation foundation ditch. The intensity of soft soil foundation is lower, and when the dado structure that sets up in the traditional bored pile work progress adopted cast-in-place formwork, because the frictional resistance of weak soil is very little, reinforcing bar and construction formwork are difficult to fix to and after dado concreting accomplished and reached certain intensity, when constructing next dado structure 3, the dado structure that forms in earlier stage very easily produced the gliding. The utility model inserts several connecting steel bars 2 into the cement mixing pile 1 formed around the digging pile 4 before each section of retaining wall structure 3 is constructed to effectively fix the steel reinforcement cage constructed by the single section of retaining wall structure 3, thereby preventing the upper section of retaining wall structure from sliding downwards during the construction of the lower section of retaining wall structure; creates favorable construction conditions and effective protective measures for the construction of the manual hole digging pile of the soft soil foundation, improves the construction efficiency and saves the engineering cost,
the distance and the number of the cement soil mixing piles 1 are set so as to be convenient for manual hole digging construction operation to determine, and the cement mixing amount is 10-20% of the weight.
The above is only used for illustrating the present invention, the present invention is not limited to the specific structure and the step range shown and described, so all the corresponding modifications and equivalents that may be utilized belong to the claimed patent scope of the present invention.

Claims (3)

1. The utility model provides a soft soil foundation manual hole digging pile structure, is including setting up hole digging pile (4) in the soft soil foundation, characterized by: the hole digging pile (4) is externally provided with a retaining wall structure (3) surrounding the side wall of the hole digging pile, the retaining wall structure (3) is externally provided with a retaining pile (1) surrounding 1-2 draining soil, and the inner wall of the retaining wall structure (3) is provided with connecting steel bars (2) inserted into the soil cement mixing pile (1) at intervals.
2. The soft soil foundation manual hole digging pile structure of claim 1, characterized in that: the cement soil mixing piles (1) are arranged on the plane in a staggered mode.
3. The soft soil foundation manual hole digging pile structure of claim 1, characterized in that: the retaining wall structure (3) is formed by vertically butting retaining wall sections constructed in sequence from top to bottom, and the height of each retaining wall section is 0.5-1.0 m.
CN201920061515.0U 2019-01-15 2019-01-15 Soft soil foundation manual hole digging pile structure Active CN210482285U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920061515.0U CN210482285U (en) 2019-01-15 2019-01-15 Soft soil foundation manual hole digging pile structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920061515.0U CN210482285U (en) 2019-01-15 2019-01-15 Soft soil foundation manual hole digging pile structure

Publications (1)

Publication Number Publication Date
CN210482285U true CN210482285U (en) 2020-05-08

Family

ID=70508330

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920061515.0U Active CN210482285U (en) 2019-01-15 2019-01-15 Soft soil foundation manual hole digging pile structure

Country Status (1)

Country Link
CN (1) CN210482285U (en)

Similar Documents

Publication Publication Date Title
CN101864773B (en) Deep foundation pit support process
CN103774674B (en) A kind of steel pipe underpinned pile and anchor pole deep foundation pit supporting structure and construction method thereof
CN100443673C (en) Method of construction
CN109930609A (en) A kind of campshed composite supporting construction and its construction method for upper-soft lower-hard ground
CN210263075U (en) Arrange bars formula tubular pile post back slip casting internal anchor outer stagnant water support system
CN109680682A (en) A kind of soft soil foundation Manual excavated pile structure and construction method
CN111236258A (en) Prefabricated pile wall supporting structure with stiffening rib wall and unloading platform and construction method thereof
CN102220764B (en) Construction method of deep foundation pit bracing system
CN109898521A (en) A kind of anchored pile supporting and construction method for foundation pit external corner
CN109610473A (en) A kind of construction method of the large-scale pool structure foundation pit supporting system of municipal administration
CN201406687Y (en) Deep foundation pit supporting structure
CN210482285U (en) Soft soil foundation manual hole digging pile structure
CN112942377A (en) Novel support shear-resistant structure and construction method thereof
CN103758132A (en) Construction technology of cantilever piling and supporting structure combined with sloping
CN111894036A (en) Construction method for additionally arranging basement in strip foundation building
CN111549784A (en) Construction process of foundation pit adjacent to building
CN206337566U (en) Foundation ditch vertical prestressing anchor pole supporting construction
CN101793027A (en) Core-grouted static pressure anchor rod pile
CN206368375U (en) A kind of electric power pylon basis
CN216515701U (en) Miniature stake raft board combination foundation structure
CN201635072U (en) Centrally grouted static-pressured anchor pile former
CN110258621B (en) Assembled retaining wall convenient to quick construction
CN215105479U (en) Foundation rock anchor pile plate type foundation of tower crane
CN102704489A (en) Foundation pit support structure and construction method thereof
CN216475246U (en) Old building adopts basic reinforced structure of slip casting steel-pipe pile

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant