CN212506445U

CN212506445U - Stress release hole capable of measuring soil squeezing degree in foundation

Info

Publication number: CN212506445U
Application number: CN202020962256.1U
Authority: CN
Inventors: 齐昌广
Original assignee: Zhejiang Henghong Construction Co ltd
Current assignee: Zhejiang Henghong Construction Co ltd
Priority date: 2020-05-29
Filing date: 2020-05-29
Publication date: 2021-02-09
Anticipated expiration: 2030-05-29

Abstract

The utility model relates to a stress relief hole capable of measuring soil squeezing degree in a foundation, which comprises a stress relief hole construction area, a stress relief hole, a cavity guiding hole, a waterproof cavity film, a steel wire bamboo cage, a supporting and blocking rod, a graduated scale, a closed cover, slurry, a floating body, a fixed suspension loop, a steel protective cylinder, a through rule hole, a bamboo sheet and a steel wire hoop; the stress release hole is arranged in a stress release hole construction area and mainly consists of an upper guide cavity hole and a lower stress cavity hole; the guide cavity hole is provided with a steel casing which is higher than the ground of a construction area of the stress release hole, and the wall of the outer side of the steel casing is provided with a fixed hanging lug; the stress cavity hole is provided with a steel wire bamboo cage which is formed by binding bamboo chips and a steel wire hoop. The utility model has the advantages that: the utility model discloses a mud body scale helps the engineering personnel ration to know the ground in stress variation size degree and crowded native degree, and then can carry out early warning in advance to the risk that probably meets in the part engineering.

Description

Stress release hole capable of measuring soil squeezing degree in foundation

Technical Field

The utility model relates to a stress relief hole, in particular to stress relief hole of crowded native degree in measurable ground.

Background

With the continuous development of traffic bridges and urban construction, pile foundations become a widely used foundation form. The pile foundation has the advantages of practicality, reliability, simple and convenient construction and the like, but a large-scale pile driving machine is needed when the pile foundation is constructed, and the soil squeezing effect is often generated in the pile sinking process. In order to ensure that buildings, roads and the like around the engineering are not damaged in the pile sinking process, it is a common method for effectively reducing the soil compaction effect to provide stress release holes around the engineering. The traditional stress release hole often collapses or the surrounding soil body enters the hole due to vibration and disturbance generated in the engineering construction process, and even the hole opening is covered; and the stress change and the soil extrusion degree in the foundation can be simply and qualitatively known.

Therefore, there is a need for a stress release hole that is easy to construct, safe, reliable, and capable of quantitatively observing and knowing the soil squeezing degree in the foundation.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the not enough among the prior art, provide a can measure stress release hole of crowded native degree in the ground.

The stress release hole capable of measuring the soil squeezing degree in the foundation comprises a stress release hole construction area, a stress release hole, a guide cavity hole, a stress cavity hole, a waterproof cavity film, a steel wire bamboo cage, a supporting and blocking rod, a graduated scale, a closed cover, slurry, a floating body, a fixing lug, a steel protecting cylinder, a through rule hole, a bamboo sheet and a steel wire hoop; the stress release hole is arranged in a stress release hole construction area and mainly consists of an upper guide cavity hole and a lower stress cavity hole; the guide cavity hole is provided with a steel casing which is higher than the ground of a construction area of the stress release hole, and the wall of the outer side of the steel casing is provided with a fixed hanging lug; the stress cavity hole is provided with a steel wire bamboo cage which is formed by binding bamboo chips and a steel wire hoop; the bottom of the impervious cavity membrane is arranged at the bottom end of the steel wire bamboo cage, the top of the impervious cavity membrane is arranged on the fixing hanging lug, the slurry is arranged in the impervious cavity membrane, the floating body is arranged on the slurry, the dividing ruler is arranged on the floating body, the closed cover is arranged at the orifice of the stress release hole, the through ruler hole is arranged at the center of the closed cover, the dividing ruler exceeds the orifice of the stress release hole through the through ruler hole, and the support and stop rod is arranged at the top end of the dividing ruler.

Preferably, the method comprises the following steps: the impervious cavity membrane is formed by mutually bonding outer non-woven fabrics, a middle impervious membrane and inner non-woven fabrics.

Preferably, the method comprises the following steps: the bottom of the graduated scale is fixed on the upper part of the floating body through a bolt, and the top of the graduated scale is bolted with a supporting and blocking rod.

The utility model has the advantages that:

1. the utility model discloses a mud body scale helps the engineering personnel ration to know the ground in stress variation size degree and crowded native degree, and then can carry out early warning in advance to the risk that probably meets in the part engineering.

2. The utility model discloses a steel that has closing cap protects a section of thick bamboo and leads the accent hole, not only help stress release hole to beat and establish, effectively prevent moreover that the drill way from collapsing, surface soil drops, prevents that the drill way from being covered.

3. The utility model discloses a steel wire bamboo cage and waterproof chamber membrane, low cost, simple manufacture lays the convenience.

Drawings

FIG. 1 is a schematic view of a stress relief hole in a foundation to measure the degree of squeezing;

FIG. 2 is a top view of the closure;

FIG. 3 is a top view of the steel casing;

FIG. 4 is a plan view of FIG. 3;

FIG. 5 is a schematic view of a float scale;

fig. 6 is a schematic view of a steel bamboo cage.

Description of reference numerals: 1-stress relief hole construction area; 2-a stress release hole; 3-guide cavity hole; 4-stress cavity hole; 5-impermeable Cavity film; 6-steel wire bamboo cage; 7-a stop lever; 8-graduated scale; 9-a closure cap; 10-slurry; 11-a float; 12-fixed hangers; 13-steel casing; 14-through ruler hole; 15-bamboo chips; and 16-steel wire hoop.

Detailed Description

The present invention will be further described with reference to the following examples. The following description of the embodiments is merely provided to aid in understanding the invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

The stress release hole capable of measuring the soil squeezing degree in the foundation comprises a stress release hole construction area 1, a stress release hole 2, a guide cavity hole 3, a stress cavity hole 4, a waterproof cavity film 5, a steel wire bamboo cage 6, a supporting and blocking rod 7, a graduated scale 8, a closed cover 9, slurry 10, a floating body 11, a fixed hanging lug 12, a steel protecting cylinder 13, a through rule hole 14, a bamboo sheet 15 and a steel wire hoop 16; the stress release hole 2 is arranged in a stress release hole construction area 1 and consists of an upper stress release hole 3 and a lower stress cavity hole 4, the stress release hole 3 is provided with a steel protective cylinder 13, the steel protective cylinder 13 is higher than the ground of the stress release hole construction area 1, the outer side cylinder wall is provided with a fixed hanging lug 12, the stress cavity hole 4 is provided with a steel wire bamboo cage 6, the steel wire bamboo cage 6 is formed by binding bamboo sheets 15 and steel wire hoops 16, the bottom of the impervious cavity membrane 5 is arranged at the bottom end of the steel wire bamboo cage 6, the top of the impervious cavity membrane 5 is arranged on the fixed hanging lug 12, the slurry 10 is arranged in the impervious cavity membrane 5, the floating body 11 is arranged on the slurry 10, the floating body 11 is provided with a graduated scale 8, the closed cover 9 is arranged at the orifice of the stress release hole 2, the graduated scale hole 14 is arranged at the center of the closed cover 9, the graduated scale 8 exceeds the orifice of the stress release hole 2 through the graduated scale hole 14, the support stop lever 7 is arranged at the top end of the graduated scale 8.

The impervious cavity membrane 5 is formed by mutually bonding outer non-woven fabrics, a middle impervious membrane and inner non-woven fabrics.

The construction method of the stress release hole capable of measuring the soil squeezing degree in the foundation comprises the following steps:

1) manufacturing a waterproof cavity membrane 5 with a corresponding size according to the depth and the diameter of the stress release holes 2, wherein the structure is formed by bonding outer non-woven fabrics, a middle waterproof membrane and inner non-woven fabrics in three layers;

2) as shown in fig. 2 and 5, the floating body 11, the scale 8 and the closing cover 9 are manufactured and prepared: the bottom of the graduated scale 8 can be fixed on the upper part of the floating body 11 by using bolts, the top of the graduated scale 8 can be bolted with a supporting stop rod 7 or an elongated graduated scale, and the center of the sealing cover 9 is provided with a through scale hole 14 matched with the graduated scale 8;

3) as shown in fig. 6, the steel wire bamboo cages 6 with corresponding sizes are manufactured according to the depth and the diameter of the stress cavity hole 4, the outer diameter of each steel wire bamboo cage 6 is slightly smaller than the diameter of the stress cavity hole 4, processed bamboo chips 15 and steel wire hoops 16 are selected for binding, and the steel wire bamboo cages 6 with corresponding numbers are manufactured in advance according to the number of designed stress release holes 2;

4) as shown in fig. 1, a stress release hole 2 is dug in a stress release hole construction area 1, a steel casing 13 is firstly dug to drill a guide cavity hole 3, then downward construction is continued, and a stress cavity hole 4 is drilled until the design depth is reached;

5) as shown in fig. 1, 3 and 4, a hanging lug 12 is welded and fixed on the periphery of the outer side of a steel casing 13, the bottom of a water-impermeable cavity membrane 5 is fixed at the bottom end of a steel wire bamboo cage 6 by a rope, then the steel wire bamboo cage 6 is lowered to the bottom of a stress cavity hole 4, the upper end of the steel wire bamboo cage 6 reaches the height of a cavity guiding hole 3, the top of the water-impermeable cavity membrane 5 is fixed on the fixing hanging lug 12 by the rope, and finally slurry 10 is injected into the water-impermeable cavity membrane 5, wherein the liquid level of the slurry 10 is about the middle position in the cavity guiding hole 3;

6) as shown in fig. 1, the bottom of a graduated scale 8 is fixed on the upper part of a floating body 11 by using bolts in advance, then the graduated scale is placed on the liquid level of slurry 10, a sealing cover 9 passes through the graduated scale 8 and then seals a stress release hole 2, and a supporting rod 7 is bolted to the top of the graduated scale 8, so that the construction operation of the stress release hole capable of measuring the soil squeezing degree in the foundation is completed;

7) and repeating the steps 4) -6), and finishing the construction operation of all the stress release holes in the stress release hole construction area in sequence.

Claims

1. A stress release hole capable of measuring soil squeezing degree in a foundation is characterized in that: the device comprises a stress release hole construction area (1), a stress release hole (2), a guide cavity hole (3), a stress cavity hole (4), a waterproof cavity membrane (5), a steel wire bamboo cage (6), a supporting and blocking rod (7), a graduated scale (8), a closed cover (9), slurry (10), a floating body (11), a fixing hanger (12), a steel protective cylinder (13), a through ruler hole (14), a bamboo sheet (15) and a steel wire hoop (16); the stress release hole (2) is arranged in the stress release hole construction area (1), and the stress release hole (2) mainly comprises an upper guide cavity hole (3) and a lower stressed cavity hole (4); the guide cavity hole (3) is provided with a steel casing (13), the steel casing (13) is higher than the ground of the stress release hole construction area (1), and the outer side cylinder wall of the steel casing (13) is provided with a fixed hanging lug (12); the stress cavity hole (4) is provided with a steel wire bamboo cage (6), and the steel wire bamboo cage (6) is formed by binding bamboo chips (15) and a steel wire hoop (16); the bottom of the impermeable cavity membrane (5) is arranged at the bottom end of the steel wire bamboo cage (6), the top of the impermeable cavity membrane (5) is arranged on the fixed hanging lug (12), the slurry (10) is arranged in the impermeable cavity membrane (5), the floating body (11) is arranged on the slurry (10), the floating body (11) is provided with a graduated scale (8), the closed cover (9) is arranged at the orifice of the stress release hole (2), the through scale hole (14) is arranged at the center of the closed cover (9), the graduated scale (8) exceeds the orifice of the stress release hole (2) through the through scale hole (14), and the support and stop rod (7) is arranged at the top end of the graduated scale (8).

2. The stress relief hole for measuring the degree of squeezing soil in a foundation according to claim 1, wherein: the impervious cavity film (5) is formed by mutually bonding outer non-woven fabrics, a middle impervious film and inner non-woven fabrics.

3. The stress relief hole for measuring the degree of squeezing soil in a foundation according to claim 1, wherein: the bottom of the graduated scale (8) is fixed on the upper part of the floating body (11) through a bolt, and the top of the graduated scale (8) is bolted with a supporting and blocking rod (7).