CN201245846Y

CN201245846Y - Clamshell excavator stirring concrete enclosure wall

Info

Publication number: CN201245846Y
Application number: CNU2008201624500U
Authority: CN
Inventors: 严平
Original assignee: Hangzhou Nanlian Base Foundation Engineering Co Ltd; WUYANG CONSTRUCTION GROUP CO Ltd; HANGZHOU SOUTH CIVIL ENGINEERING CONSULTATION Co Ltd
Current assignee: Hangzhou Nanlian Base Foundation Engineering Co Ltd; WUYANG CONSTRUCTION GROUP CO Ltd; HANGZHOU SOUTH CIVIL ENGINEERING CONSULTATION Co Ltd
Priority date: 2008-08-14
Filing date: 2008-08-14
Publication date: 2009-05-27
Anticipated expiration: 2018-08-14

Abstract

The utility model mainly relates to a bucket-mixing cement retaining wall, which mainly comprises cement soil walls arranged in grooves dug by a bucket, wherein the cement soil wall comprises original soil, clay, powder sandy soil and cement which are mixed according to a certain ratio, and the cement additional amount is 10% to 20%. A mud protection wall formed of cement and original soil is arranged on the contact surface of the cement soil wall and the grooves to achieve smooth wall formation. Steel plate piles, pine piles, bamboo piles or precast concrete piles can be arranged on both sides of the cement soil wall, or soil nails or anchors can be arranged in the cement soil wall. The bucket-mixing cement retaining wall has the advantages that the retaining wall solves the problem that the conventional construction pile foundation can not execute construction unless soil replacement on the ground foundations, such as crushed stone filling foundation, where piles is unlikely to be formed by various kinds of pile machines. Simultaneously, the composite retaining wall with lateral force resistance can be formed by implanting various kinds of lateral-force-resistant retaining piles or arranging the soil nails or the anchors, and has the advantages of simple construction, high efficiency and low engineering cost.

Description

The bucket enclosure wall that mixes cement

Technical field

The utility model relates to a kind of enclosing Technique that grounds such as deep miscellaneous fill in city or the pool, stream backfill are gone along with sb. to guard him engineering that is used for, particularly a kind of bucket enclosure wall that mixes cement.

Background technology

At present in the bracing of foundation pit engineering, at miscellaneous fill grounds such as various cities rubble, rubble, building wastes, and the stone riprap backfill place ground of old river embankment and irrigation canals and ditches, and often with obstructions such as stone-laying bank, timbers, various stake machine piles are all very difficult, even can't construct.Stake commonly used as drilled pile, pipeline sinking pile, preformed pile etc. are as the fender post soil removal and replacement of all should removing obstacles in construction, and are very thick as if the soil layer of removing obstacles, and then can increase difficulty of construction, and construction costs is corresponding to be increased.

In addition, in this river embankment, irrigation canals and ditches disorderly banketed the dark Drizzle ground that forms, the water-stop curtain of bracing of foundation pit was crucial, but prior art goes along with sb. to guard him the construction of water-stop curtain and have any problem, even can't be shaped.It is the means such as cement mixing pile, rotary churning pile, high-pressure slip-casting that set that foundation ditch at present commonly used keeps off native water-stop curtain way, but at above ground if not carrying out soil removal and replacement can't construct and form the native water-stop curtain of retaining, can't solve the sealing problem.And the dark Drizzle of the river embankment after these stone riprap backfills, irrigation canals and ditches formation, water permeability is very big, blocks normally excavation construction underground construction of current without curtain.

The utility model content

The utility model overcomes the shortcoming of prior art for solving above-mentioned engineering roadblock, provides a kind of construction convenient, the cost economic and the good bucket that the keeps off native stagnant water effect enclosure wall that mixes cement.

This bucket described in the utility model enclosure wall that mixes cement, mainly containing cement soil wall constitutes, cement soil wall is arranged in the groove that bucket digs out, cement soil wall is mixed in the ratio of determining with cement by original soil, clay, silt and forms, and the incorporation that this ratio of determining is a cement is 10% to 20%.Be provided with cement and original soil and stir the mud off that forms on described cement soil wall and groove contact surface, making into the wall process can carry out smoothly.Also steel sheet pile or pine stake or mao bamboon stake or prefabricated concrete stake can be set in the cement soil wall both sides, be provided with the cast-in-situ reinforced concrete coping at the cement-soil coping.Perhaps in cement soil wall, set soil nailing or anchor pole, at the cement-soil face of wall, and on domatic around the cement soil wall steel mesh reinforcement is set and sprays the concrete mask, to form the compound system of going along with sb. to guard him.

The bucket of the utility model gained enclosure wall that mixes cement, rubble that can't pile at various stake machines bankets, the urban architecture garbage filling soil, exist on the ground such as river embankment, irrigation canals and ditches backfill of stone-laying bank, timber etc., stir in conjunction with mixing cement by bucket, cement and original soil stir and form soil cement slurry, form the mud off to groove, to guarantee that cement soil wall does not cave in the excavation whipping process, making into the wall process can smooth implementation.In implementation process, can drop into general clay or silt and carry out soil removal and replacement and form the effect that cement soil wall can play cement-soil retaining soil or cement-soil retaining Tu Zhishuiweimuqiang, solved the difficult problem that this type of ground tradition construction pile foundation must first soil removal and replacement could be constructed.And can implant all kinds of lateral force resistance fender posts simultaneously or set soil nailing, anchor pole, make to form the bucket meet the lateral force resistance requirement enclosure wall that mixes cement.Simultaneously this bucket mixes cement, and also to have a construction simple for enclosure wall, efficient height, the characteristics that construction costs is cheap.

Description of drawings

Fig. 1 is that the utility model embodiment 1 bucket stirring concrete earth forms the native water-stop curtain wall schematic diagram of retaining;

Fig. 2 is that the utility model embodiment 1 bucket stirring concrete earth forms the gravity retaining wall schematic diagram;

Fig. 3 is that the utility model embodiment 2 is one-sided in conjunction with the compound soil-baffling structure schematic diagram of steel sheet pile;

Fig. 4 is that the utility model embodiment 2 bilaterals are in conjunction with the compound soil-baffling structure schematic diagram of steel sheet pile;

Fig. 5 is that the utility model embodiment 2 bilaterals are strengthened in conjunction with the compound soil-baffling structure schematic diagram of steel sheet pile;

Fig. 6 is the compound soil-baffling structure schematic diagrames of the utility model embodiment 3 soil nailings;

Fig. 7 is that the utility model embodiment 3 soil nailings are in conjunction with one-sided steel sheet pile and compound soil-baffling structure schematic diagram;

Fig. 8 is that the utility model embodiment 3 soil nailings are in conjunction with bilateral steel sheet pile and compound soil-baffling structure schematic diagram;

Fig. 9 is that the utility model embodiment 3 soil nailing bars are strengthened steel sheet pile and compound soil-baffling structure schematic diagram in conjunction with bilateral;

Description of reference numerals: cement soil wall 1, steel bar concrete coping 2, steel sheet pile 3, soil nailing 4, steel mesh reinforcement sprays concrete mask 5.

The specific embodiment

Below in conjunction with accompanying drawing the utility model is further described:

Embodiment 1

As shown in Figure 1, 2, the described bucket of the present embodiment enclosure wall that mixes cement, mainly constitute by cement soil wall 1, cement soil wall is arranged in the groove that bucket digs out, cement soil wall is mixed in the ratio of determining with cement by original soil, clay, silt and forms, and the incorporation that this ratio of determining is a cement is 10% to 20%.Be provided with cement and original soil and stir the mud off that forms on described cement soil wall and groove contact surface, making into the wall process can carry out smoothly.

During construction, comprise the steps: to banket at various rubbles, urban architecture garbage filling soil and existing on the ground such as river embankment, irrigation canals and ditches backfill of stone-laying bank, timber, earlier with common bucket or special net like bucket, according to the thickness of cement soil wall 1 and the requirement and the soil property situation thereof of cutting depth, shoveling limit, limit is mixed the cement limit and is stirred, and makes the cement soil wall 1 that forms the design sectional dimension.Cement soil wall 1 thickness is generally greater than 0.6 meter, and cutting depth is decided in conjunction with the digging machine brachium according to the engineering actual conditions, generally at 2～5 meters, can carry out special realization to the brachium of digging machine bucket to darker cement soil wall 1.Cement mixed weight is 10%～20%, and water/binder ratio is 1.0～2.0.Can mix an amount of accelerating admixture in addition according to the duration situation.If ground is the miscellaneous fill of a lot of stone riprap obstructions, can mix cement and clay or silt with shoveling limit, net like bucket limit, remove obstacles while stirring.

Embodiment 2

The described bucket of the present embodiment enclosure wall that mixes cement is looked the foundation ditch depth and soil property good job, before cement soil wall 1 does not condense, can be pressed into steel sheet pile 3 along groove or foundation ditch inboard at it, and steel sheet pile can adopt pine stake, mao bamboon stake to replace, as Fig. 3; Also steel sheet pile 3 can be pressed in its both sides, as Fig. 4; Also can be pressed on the way of steel sheet pile 3 more within it side in cement soil wall 1 both sides and set up steel sheet pile 3, as Fig. 5.At the cement soil wall top cast-in-situ reinforced concrete coping 2 that forms, form the native water-stop curtain of retaining at last.

Embodiment 3

The described bucket of the present embodiment enclosure wall that mixes cement is looked the foundation ditch depth and soil property good job, successively sets soil nailing 4 (adopting anchor pole to replace) with excavation of foundation pit after cement soil wall 1 reaches certain intensity, as Fig. 6; Also can be pressed into steel sheet pile 3 along the foundation ditch inboard at it, treat that cement soil wall 1 reaches certain intensity after, successively set soil nailing 4 with excavation of foundation pit, as Fig. 7; Also can before cement soil wall 1 does not condense, be pressed into steel sheet pile 3 in its both sides, treat that cement soil wall 1 reaches certain intensity after, successively set soil nailing 4 with excavation of foundation pit, as Fig. 8; To the worse foundation ditch of darker soil property, can be pressed on the way of steel sheet pile 3 more within it side in cement soil wall 1 both sides and set up steel sheet pile 3, treat that cement soil wall 1 reaches certain intensity after, successively set soil nailing 4 with excavation of foundation pit, as Fig. 9.At last at cement soil wall 1 external surface that forms, and steel mesh reinforcement is set on domatic around the cement soil wall 1 sprays concrete mask 5 and form the compound system of going along with sb. to guard him.

Claims

1, a kind of bucket enclosure wall that mixes cement mainly is made of cement soil wall, it is characterized in that: cement soil wall is arranged in the groove that bucket digs out, and is provided with cement and original soil and stirs the mud off that the back forms on cement soil wall and groove contact surface.

2, the bucket according to claim 1 enclosure wall that mixes cement is characterized in that: be provided with steel sheet pile in the cement soil wall both sides, be provided with the cast-in-situ reinforced concrete coping at the cement-soil coping.

3, the bucket according to claim 1 and 2 enclosure wall that mixes cement is characterized in that: set soil nailing in cement soil wall.

4, the bucket according to claim 1 and 2 enclosure wall that mixes cement is characterized in that: at the cement-soil face of wall, and on domatic around the cement soil wall steel mesh reinforcement is set and sprays the concrete mask.

5, the bucket according to claim 3 enclosure wall that mixes cement is characterized in that: at the cement-soil face of wall, and on domatic around the cement soil wall steel mesh reinforcement is set and sprays the concrete mask.