(4) In order to strengthen our country's political and economic exchanges and cooperation with countries in the international arena, it was decided that the government would invest in the construction of a high-standard, high-quality international conference center in a certain city for international high-level gatherings and activities. The project is located in the city's elegant environment, beautiful scenery area. The project has been determined through bidding by a contracting company A general contracting and signed a construction contract, but also with the supervision company B signed a supervision contract. Supervisory body in the implementation of the project encountered the following situations.
1, the region's poor geological conditions, and extremely complex and variable, the construction may be very difficult, in order to ensure the quality of the project, the general contractor decided to contract the construction of foundation works to a professional foundation engineering company C.
2, the entire project quality standards are extremely high, the construction unit requires the supervisory body to put the residence to use the main materials, equipment, quality of the incoming quality of the gate.
3, the construction unit also requires the supervisory body for the main engineering construction, whether it is reinforced concrete main structure, or exquisite decorative works, are required to strictly good construction quality of each process, to achieve the high standards specified in the contract and high quality assurance rate.
4, the construction unit requirements must ensure that the strength of the concrete mix used, mortar materials and reinforced concrete load-bearing structures and load-bearing welds to meet the standards of quality requirements.
5. At the beginning of the construction of the freeway branch line connecting the conference center with the downtown area of the city and the main highway, the supervising engineer found that the quality of the roadbed filling by the construction team contracted for the roadbed project did not meet the required quality requirements. The supervising engineer ordered the suspension of the construction work and demanded that it be reworked and redone. However, the contractor delayed this, refused to carry out the rework, and through relevant parties? persuaded? Supervision agreed not to rework, both sides adhere to continue for a long time, affecting the normal progress of the project.
6, in a layer of reinforced concrete floor slab pouring concrete construction process, civil construction supervision engineers learned that the floor reinforcement construction has been supervisory engineers to check the recognition of the visa, but the design of the pre-buried electrical conduit is not notified to the electrical supervision engineers to check the visa. Source. At this time, the concrete has been poured one-fifth of the total amount of work.
Question:
1, the supervision engineer for the construction process quality control means mainly which aspects?
2, for the above several situations, you think the supervising engineer should be used separately what means to ensure quality? Please answer one by one.
3, in order to ensure the quality of work, in what circumstances, the supervising engineer has the right to exercise quality control, stop-work order, timely quality control?
Reference Answer:
1, the means of quality control of the construction process by the supervising engineer are mainly the following five aspects:
(1) control by means of reviewing the relevant technical documents, reports or statements;
(2) control by means of issuing directive documents and general management instruments Control (generally issued in the form of notices);
(3) control by means of on-site supervision and inspection (including bystander supervision, inspection tours and equal inspection);
(4) through the provisions of the quality control work procedures, requiring that the work and activities in accordance with the prescribed procedures;
(5) control by means of the right to control the use of payment.
2. In response to the six situations presented in the questionnaire, the supervising engineer should use the following means of control (item by item corresponding answer).
(1) first of all, through the review of the subcontractor's qualification documents to control the subcontractor's qualification (review of documents, reports of the means); and then through the review of the construction program submitted by the general contractor (actually a subcontractor to propose the foundation construction program) to control the foundation construction technology to ensure the quality of foundation construction.
(2) to ensure the quality of incoming materials, equipment can take the following means:
① through the review of incoming materials, equipment, factory certificates of conformity, material testing sheets, test reports, and other documents, statements, reports to control;
② through the parallel inspection mode of supervision and inspection control on site. Source:.
(3) through the provisions of the quality monitoring program strictly control the construction quality of each process; through the site inspection and bystander supervision strictly control the construction process
(4) through the bystander supervision and witnessing the sampling control of concrete mix, mortar and load-bearing structure quality.
(5) through the suspension of construction orders to suspend the unqualified fill continue to expand; by means of stopping the payment of the project to prompt the contractor to rework.
(6) through the means of issuing orders to suspend construction, to prevent the deterioration and expansion of quality problems; through the issuance of quality notices to investigate, inspect, and put forward opinions; through the review and approval of the treatment program, rework or rectification of the orders issued, quality control.
3, in the following cases, the Superintendent Engineer has the right to issue a stop-work order, timely quality control:
(1) the quality of construction abnormalities, the contractor failed to reverse the anomaly;
(2) hidden works are not legally inspected to confirm the qualification of the unauthorized closure;
(3) has occurred in the quality of the problem of delayed processing, or if the Without stopping the work, the quality situation may continue to develop;
(4) Changing the design or modifying the drawings without the review and consent of the supervising engineer;
(5) Entering the site construction without legal examination or examination of the unqualified personnel;
(6) Entering the site and using materials and semi-finished products used without checking and approval, or checking the site and use of those considered to be unqualified;
(7) Unauthorized use of subcontracting units that have not been examined and approved by the supervisory party or whose qualifications are unqualified to enter the site for construction.
(E) a construction unit to build a sewage treatment plant project has been approved. The project construction scale for the daily treatment capacity of 415,000 cubic meters of secondary treatment, the total cost of about 290 million yuan, of which about 180 million yuan of civil engineering. Funding sources for the project are: 35% own funds, 65% bank loans.
Qualified potential civil engineering construction bidders are invited to participate in the bidding for this project. Bidding applicants are required to have the ability to undertake the bidding project and construction administrative departments issued by the municipal public works construction general contracting first-class qualification, foundation and foundation engineering specializing in contracting third-class or above the qualification of the construction unit, and in the past two years has undertaken more than two (including two) more than 100,000 cubic meters of sewage treatment plant main construction works. At the same time as the consortium's pile foundation construction unit should have three or more pile foundation construction qualification, the relevant project performance in the past two years is good.
Questions
1. What are the ways of bidding for construction projects? What are the characteristics of each?
2. What construction projects must be awarded through tender?
3. can not be tendered, the use of direct entrustment of the contracting of the project which?
Examination points
Tendering methods.
Points of analysis
The construction project bidding methods are open bidding and invitation to tender two kinds of, this case is mainly examined must be tendered and can not be tendered, candidates should be clearly distinguishable.
Reference Answer
1. Construction project tendering methods have two kinds of open tendering and invitation to tender.
The advantages of open bidding are: more contractors bidding, wide range, fierce competition, the owner has a greater choice, can get competitive offers, improve the quality of the project and shorten the construction period. The disadvantages are: due to the application of more bidders, generally set up pre-qualification procedures, and the workload of bid evaluation is also larger, the required bidding time is long, high cost.
The advantages of invitations to tender are: no need to issue tender notices and set up pre-qualification procedures, saving the tender costs and save time; due to the bidders' past performance and performance ability to understand, reduce the risk of default of the contractor in the process of contract fulfillment. In order to reflect the open competition and facilitate the bidder to choose the strongest overall ability of the bidder to win the tender, still require the tender to submit the relevant materials showing the qualification of the bidder as one of the evaluation of the evaluation of bidding (usually referred to as post-qualification review). The disadvantage is: due to the invitation of a smaller scope, narrow selection, may exclude some of the potential bidders in the technical or price competitive strength, so the intensity of the bidding competition is relatively poor.
2. According to Article 3 of the Bidding Law, the following engineering and construction projects within the Chinese People's *** and the State, including project investigation, design, construction, supervision and procurement of important equipment and materials related to engineering and construction, must be tendered:
(1) large-scale infrastructure, public utilities and other relations with the social public **** interests, public security Project;
(2) all or part of the use of state-owned funds or state-financed projects;
(3) the use of international organizations or foreign governments, loans, and assistance to the project.
3. In accordance with the construction bidding methods for construction projects, one of the following circumstances, you can not bidding, the use of direct entrustment of the construction task:
(1) involving national security, state secrets or disaster relief and is not suitable for bidding;
(2) is the use of poverty alleviation funds to implement the need for the use of migrant workers;
(2) the use of poverty alleviation funds need to use migrant workers;
(3) use of international organizations or foreign government loans, aid funds, or state financing;
(4) use of international organizations or foreign government loans, aid funds.
(3) the construction of the main technology using specific patents or proprietary technology;
(4) the construction of construction enterprises to build their own works, and the qualification level of the construction enterprise in line with the requirements of the project;
(5) in the construction of additional ancillary minor works or the main body of the additional layers of the project, the original successful bidder still has the ability to contract;
(6) the law, Administrative regulations provide for other circumstances.
(6) A supervision unit undertakes the construction supervision of an industrial project. After bidding, the construction unit selected A, B construction unit to undertake the construction of A and B respectively, and in accordance with the "construction contract (model text)" and A, B construction unit signed a construction contract. The construction unit and construction unit B agreed in the contract that the construction unit would be responsible for purchasing some of the equipment required for section B. The construction unit and construction unit B agreed that the construction unit would be responsible for purchasing some of the equipment required for section A and B. Construction unit B subcontracted the installation works of section B to construction unit C in accordance with normal procedures. In the construction process, the following events occurred:
Event 1: the construction unit in the procurement of boiler equipment for the B bid, the equipment manufacturer proposed by their own construction team to install a better quality assurance, the construction unit and the equipment manufacturer signed a supply and installation contract and notified the supervisory unit and the B construction unit.
Event 2: Superintendent engineer according to the site feedback and quality record analysis, the A section of a part of the hidden works of the quality of doubt, and then instructed the construction unit to suspend the construction, and asked to peel off the test. A construction unit said: the part of the hidden works have been accepted by professional supervision engineers, if the peeling inspection, the supervision unit needs to compensate for the loss caused by this and extend the construction period accordingly.
Incident 3: professional supervision engineers on the B bidding section of the inspection of the power distribution equipment, found by the construction unit procurement of a piece of equipment unqualified, the construction unit of the equipment was replaced, which led to the construction unit C stopped. Therefore, construction unit C wrote to the supervisory unit, requesting compensation for the losses suffered by the forced stoppage of work and extension of the construction period.
Question:
1. In Event 1, the construction unit will be installed by the manufacturer of the equipment is correct? Why?
2. In Event 1, if the construction unit B agreed to the equipment manufacturer's construction team to install the equipment, the supervision unit should be how to deal with?
3. In Event 2, is the supervising engineer correct? Why? Try to analyze the possible results of the stripping inspection and supervision of the engineer's corresponding methods of treatment.
4. In event 3, the construction unit C's claim should be submitted to the supervisory unit? Why? How should the claim be handled.
Answer:
1. Incorrect, because it is a violation of the contract.
2. The supervisory unit should review the qualifications of the manufacturer. If it meets the requirements, it can be installed by the plant. If unit B accepts the plant as its subcontracting unit, the supervisory unit should assist the construction unit to change the contract with the equipment plant, such as unit B accepts the vendor to contract directly from the construction unit, the supervisory unit should assist the construction unit to change the contract with unit B; if it does not meet the requirements, the supervisory unit should refuse to be constructed by the vendor.
3. The superintendent engineer is correct. Whether or not the engineer attended the acceptance, when the engineer has doubts about the quality of a part of the project, the contractor can be required to re-inspection of the project has been hidden.
Re-inspection of the quality of qualified, the contractor to bear all the additional contract price, compensation for the loss of the construction unit, and the corresponding extension of the construction period; test failed, the construction unit to bear all the costs incurred, the construction period will not be postponed.
4. (1) should not be, because the construction unit and C construction unit has no contractual relationship.
(2) processing:
A. C to B to file a claim, B to the supervisory unit to submit a letter of intent to claim.
B. The supervisory unit collects information related to the claim.
C. The supervisory unit accepts the letter of intent to claim submitted by unit B.
D. The superintendent engineer reviews the claim application, preliminarily determines the amount of cost and extension of time, and negotiates with the construction unit B and the construction unit.
E. Superintendent engineer to make a decision on the cost of the claim and the extension of the project.